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JB/T 8059-1996 Technical requirements for high pressure boiler feed pumps

Basic Information

Standard ID: JB/T 8059-1996

Standard Name: Technical requirements for high pressure boiler feed pumps

Chinese Name: 高压锅炉给水泵技术条件

Standard category:Machinery Industry Standard (JB)

state:Abolished

Date of Release1996-09-03

Date of Implementation:1997-07-01

Date of Expiration:2008-07-01

standard classification number

Standard Classification Number:Machinery>>General Machinery and Equipment>>J71 Pump

associated standards

alternative situation:Replaced by JB/T 8059-2008

Publication information

publishing house:Mechanical Industry Press

Publication date:2004-04-24

other information

Focal point unit:National Pump Standardization Technical Committee

Publishing department:National Pump Standardization Technical Committee

Introduction to standards:

This standard specifies the technical requirements, test methods and inspection rules for high-pressure boiler feed pumps. This standard applies to boiler feed pumps for thermal power generation units with a single unit capacity of 200~600MW. Pumps for thermal power generation units with a capacity of 50~125MW can be used as a reference. JB/T 8059-1996 Technical requirements for high-pressure boiler feed pumps JB/T8059-1996 Standard download decompression password: www.bzxz.net

Some standard content:

JB/T8059-96
This standard summarizes the experience of my country in the research, design, manufacturing, operation and maintenance of high-pressure boiler feed pumps over the years, and refers to the relevant standards of KSB of Germany and Sulzer of Switzerland. Appendix A of this standard is the appendix of the standard. This standard is proposed and managed by the National Technical Committee for Pump Standardization. The drafting units of this standard are: Shenyang Pump Research Institute, Shenyang Pump Factory, and Shanghai KSB Pump Co., Ltd. The main drafters of this standard are: Chen Jingshan, Zhou Shao, Zhu Liqiang, and Luo Shifen. 636
1 Scope
Machinery Industry Standard of the People's Republic of China
Technical Conditions for High-Pressure Boiler Feed Pumps
JB/T 8059-96
This standard specifies the technical requirements, test methods and inspection rules of high-pressure boiler feed pumps (hereinafter referred to as pumps). This standard applies to pumps for boiler feed water of thermal power generating units with a single unit capacity of 200 to 600MW. Pumps for thermal power generating units with a capacity of 50 to 125MW can be used as a reference.
2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB1220-92 Stainless steel bars
GB2100--80 Technical conditions for stainless acid-resistant steel castingsGB 3077-88
3 Technical conditions for alloy structural steels
GB 3216--89
GB 3323--87
GB 5677--85
GB 7021---86
GB 7233--87
GB 9113--88
GB 9115--88
GB 9239-88
GB 9439---88
GB 10889—89
GB10890—89
GB11352-—89
Test methods for centrifugal, mixed, axial and vortex pumpsRadiographing and quality grading of steel fusion welded butt jointsRadiographing and film grading of steel castingsGlossary of terms for centrifugal pumps
Ultrasonic testing and quality grading of steel castingsIntegral steel pipe flanges
Butt-welded steel pipe flanges||tt| |Determination of the allowable imbalance of the balancing quality of rigid rotorsGray cast iron parts
Methods for measuring and evaluating vibration of pumps
Methods for measuring and evaluating noise of pumps
Casting carbon steel parts for general engineering
GB/T13384--92
General technical conditions for packaging of electromechanical products
JB1265--85Technical conditions for vacuum-treated carbon steel and alloy steel forgings for turbine rotors and main shaftsJB 158185
Ultrasonic flaw detection method for forgings of turbine and turbogenerator rotors and main shaftsQualification of welding procedures for pressure vessels
JB 3964---85
JB/T4297-92Technical conditions for painting of pump productsJB 4726---94
Carbon steel and low alloy steel forgings for pressure vesselsJB 4728—94
Stainless steel forgings for pressure vessels
JB4730-—94Nondestructive testing of pressure vessels
JB/T6879—93Dimensional tolerances of flow-through parts of centrifugal pump castingsJB/T6880.2--93Steel castings for pumps
ZBJ04005-—87Penetrant flaw detection methods
Approved by the Ministry of Machinery Industry of the People's Republic of China on September 3, 1996, and implemented on July 1, 1997
3Terms
JB/T 8059-96
The commonly used terms in this standard comply with the provisions of GB7021, and the special terms are defined as follows. 3.1Minimum flow
The minimum flow is also called the recirculation flow, which is the minimum operating flow allowed for the liquid in the pump without vaporization. 3.2 Maximum flow rate
The maximum operating flow rate when the pump does not cavitate in the working state and the shaft power does not exceed the allowable power of the prime mover. 3.3 Working pressure
The sum of the head (converted to the pressure at the feed water temperature) under the normal operating condition (or 100% operating point) of the pump and the inlet pressure under this condition.
3.4 ​​Maximum working pressure
The sum of the head (converted to the pressure at the feed water temperature) at the minimum flow point of the pump at the highest speed and the inlet pressure under this condition. 3.5 Allowable working range
The flow range of the pump at the specified speed, working temperature and working pressure. This range is subject to cavitation, temperature rise, vibration, noise, shaft deflection and other conditions, and should be specified by the manufacturer. 4 Technical requirements
The pump should comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. If the user has requirements different from those of this standard, they should be in accordance with the provisions of the order form and Appendix A. 4.1 Structure and performance
4.1.1 Structure
4.1.1.1 The pump adopts a single-shell segmental or double-shell simple structure. The pump for 300MW and above generator sets should generally adopt a double-shell cylindrical structure. The inner shell of the double shell adopts a segmental or horizontal split structure. 4.1.1.2 The pump should adopt a horizontal center support. 4.1.2 Performance parameters
The performance parameters of the pump should comply with the requirements of the order or Appendix A or the corresponding technical standards. 4.1.3 Characteristic curve
4.1.3.1 The manufacturer should determine the allowable operating range of the pump (including the minimum and maximum flow rates). 4.1.3.2 The required NPSH of the pre-pump (boosting pump) and the pump should be proposed by the pump manufacturer and approved by the design institute and the power supply company.
4.1.3.3 When the pump leaves the factory, a curve of head, efficiency, shaft power, NPSH and flow converted to the working speed from the working speed test or speed reduction test (see 6.3.2) should be drawn. For speed-adjustable pumps, a performance curve that changes with speed should be drawn. 4.1.3.4 The relationship curve between the flow and head of the pump should be a stable curve without a hump, that is, the head from the design flow to zero flow is steadily rising, and the rise should not be greater than 20% to 30% of the design head. If the head at the dead point exceeds 30%, the user's written consent should be obtained.
4.1.4 Parallel operation
When the pumps are operated in parallel, the deviation of the load sharing of each pump of the same model should be limited to within 5% to 10%. 4.2 Prime mover
4.2.1 Pump drive mode
The prime mover of the pump is an electric motor, steam turbine, etc. The prime mover can be directly connected to the pump through a coupling, or connected to the pump through a hydraulic coupling or a gearbox.
4.2.2 Prime mover power
The following factors should be considered when determining the prime mover power:638
JB/T8059-96
a) The position of the maximum flow operating point and the normal operating flow operating point of the pump on the performance curve; b) For parallel operation, the performance range of a single pump on the system characteristic curve should be considered; c) The efficiency and design parameters of the pump;
d) When connected to a hydraulic coupling or a gearbox, its power consumption should be considered; e) When the pump group has a booster pump coaxially connected to it, the shaft power of the booster pump should be taken into account; f) The prime mover power should not be less than 110% of the shaft power at the normal operating point. 4.3 Critical speed
4.3.1 Rigid rotor
The maximum operating speed nmax of the pump should be less than the first critical speed nci, the range of values: nmax ≤ 0. 8ncl
4.3.2 Flexible rotor
The operating speed n of the pump should be greater than the first critical speed nel, but less than the second critical speed ne2, the range of values: 1. 4ne1 < n <0. 7nc2
During the process of starting and stopping, the pump should not cause any damage when passing through the critical speed. 4.4 Balance, vibration and noise
4.4.1 Static balance
4.4.1.1 The impeller of the pump should be statically balanced, and the static balance accuracy should not be lower than G6.3 level in GB9239--88. 4.4.1.2 When removing weight from the impeller cover, the weight removal area and the cover should have a smooth transition, and the amount of cutting should not exceed 1/3 of the cover thickness. 4.4.2 Dynamic balancing
4.4.2.1 The rotor of the pump should generally be dynamically balanced at the operating speed, and the dynamic balancing accuracy should not be lower than G2.5 level in GB9239--88. 4.4.2.2 The relative positions of the parts to be dynamically balanced should be fixed after dynamic balancing, and should not be arbitrarily replaced and marked with obvious signs. 4.4.3 Vibration
The vibration of the pump should be measured under the operating conditions of no cavitation on site, and the change of the pump group load should be considered. The vibration value at the bearing body should meet the requirements of Class B in GB10889.
4.4.4 Noise
The noise sound pressure level of the pump should meet the requirements of Class A in GB10890-89. The noise at a distance of 1m from the pump is not more than 85dB. If it exceeds the above value, a sound insulation cover should be installed.
4.5 Pressure-bearing parts
4.5.1 Flange
The nominal pressure of the inlet and outlet flanges of the pump should be able to meet the requirements of the maximum suction and discharge pressure of the pump. If flange connection dimensions are used, they should be designed according to the provisions of GB9113, GB9115 or according to the requirements of the user. 4.5.2 Suction section and discharge section
Strength calculation should be carried out when designing the suction section and discharge section of the single-casing segmental pump, and the parts should be subjected to water pressure test (see Article 5.2). 4.5.3 Outer shell and pump cover
When calculating the strength of the outer shell and pump cover of the double-casing pump, the maximum working pressure and thermal stress should be considered at the same time. The parts should be subjected to water pressure test (see 5.2).
The parts should be forged and should comply with the provisions of JB4726 and JB4728. The sealing surface should be welded with erosion-resistant stainless steel, and the inner surface should be welded according to the conditions.
The parts should be subjected to ultrasonic, magnetic powder or coloring inspection, and the welded layer should comply with the provisions of JB3964 and be tested with copper sulfate. 4.5.4 Inner shell and middle section
The middle section of the single-casing segmental pump and the inner shell of the double-casing pump should be subjected to strength calculation, and the single-casing segmental middle section and the split inner shell should be subjected to water pressure test (see 5.2). The inner shell of the double-casing pump should be subjected to coloring or magnetic powder inspection. 4.5.5 Pipe
JB/T 8059--96
The structure and size of the suction, discharge and tap pipes of the double-casing pump can be designed according to the needs. The discharge and tap pipes should be forged, and the pipes should be made of materials with good welding performance. The parts should be subjected to ultrasonic inspection. After welding with the outer shell, the weld should comply with the provisions of JB3964 and be subjected to coloring or magnetic particle inspection, and be subjected to water pressure test together with the outer shell. If necessary, the weld of the pipe should be subjected to radiographic inspection. 4.5.6 Sealing gasket
The gasket used for pump sealing should be able to adapt to the maximum working pressure under the specified working conditions and ensure the specified specific pressure and rebound coefficient. 4.5.7 Through-bar, stud and nut
The through-bar of the single-casing pump and the stud and nut of the double-casing pump should be able to adapt to the specified working conditions and test pressure, and strength calculation should be carried out. The parts should be subjected to strength inspection, and each part should be subjected to ultrasonic inspection. 4.5.8 Head cover, tail cover, seal body and end cover The head and tail covers of single-casing segmental pumps, the seal body and end cover of double-casing pumps and other shaft seal parts shall be subjected to coloring or magnetic particle inspection and water pressure test (see 5.2).
4.6 Rotor parts
4.6.1 Impeller
4.6.1.1 The impeller shall be an integral casting, and its flow channel shall be polished smooth and flat (see 4.13.2). 4.6.1.2 The impeller and the shaft shall be matched with sliding fit or interference fit (short-fitting), and positioned with a sleeve or a retaining ring. 4.6.1.3 The hydraulic dimensions of the impeller shall meet the design requirements and be strictly inspected. Each casting batch shall be subjected to strength inspection, and each heat treatment furnace shall be subjected to hardness sampling inspection. Each impeller shall be subjected to coloring or magnetic particle inspection, or X-ray photography inspection. 4.6.2 Shaft and sleeve
4.6.2.1 The pump shaft should be subjected to strength calculation. The selected material should not only ensure strength, but also adapt to alternating loads and thermal shock. The round roots and roughness of the hollow knife grooves, keyways, shaft shoulders, etc. on the shaft surface should comply with the provisions of relevant standards and documents to prevent stress concentration. The shaft should be forged and subjected to strength, chemical composition, ultrasonic, magnetic powder or coloring inspection. The pump shaft should meet the following requirements:
a) Transmit the maximum torque of the pump;
b) Minimize the adverse effects on the performance of the shaft seal;c) Minimize the risk of wear and abrasion;d) Minimize the vibration effect on the pump;e) The maximum radial runout of the pump shaft should not be greater than 0.02mm. 4.6.2.2 The worn parts of the shaft should be surface hardened or replaceable hardened sleeves should be used to reduce wear and erosion. The sleeves should be driven by keys. Seals should be added to the sleeves to prevent liquid from leaking along the surface between the sleeves and the shaft. 4.6.3 Balancing disc, balancing drum and balancing sleeve
4.6.3.1 The balancing force and strength calculations shall be carried out for the parts of balancing mechanism such as balancing disc, balancing drum and balancing sleeve, and they shall be forged and subjected to strength, coloring or magnetic particle inspection.
4.6.3.2 The hardness of the sealing surface between balancing disc, balancing drum and balancing sleeve shall not be less than 35~42HRC. 4.6.3.3 The balancing drum or the relative balancing sleeve shall generally have spiral grooves or labyrinth grooves in the opposite direction of the pressure drop to reduce leakage. 4.7 Wear-resistant ring and running clearance
4.7.1 Casing sealing ring and intermediate sleeve
4.7.1.1 Replaceable casing sealing ring and intermediate sleeve shall be provided on the casing and guide vane, and fixed by tight fit and saddle screws or spot welding.
4.7.1.2 Choose appropriate materials or appropriate heat treatment methods to make them resistant to erosion, wear and seizure. 4.7.2 Operating clearance
4.7.2.1 The designed radial clearance and the allowable final radial clearance between the rotor and the housing should be determined according to the pumps of different specifications, and generally should not exceed the provisions of Table 1.
4.7.2.2 The radial clearance between the balancing disc (drum) and the balancing sleeve during assembly: 0.04~0.08mm for the single balancing disc structure; 0.35~1.0mm for the balancing disc and the balancing drum combined structure.
JB/T 8059—96
4.7.2.3 The total axial clearance between the thrust bearing and the thrust disc: 0.5~1mm for the single-shell segmental pump; 0.5~0.7mm for the double-shell pump.
Table 1 Operating radial clearance
Diameter clearance
Impeller and first-stage casing sealing ring
Impeller and secondary casing sealing ring
Impeller and intermediate bushing
Balance sleeve (drum) and balance village sleeve
Balance disc (drum) and support ring
Radial bearing and shaft
4.8 Bearing
4.8.1 Structure
Design clearance
0. 4~0.5
0. 5~1. 0
Allowed final clearance
0. 75~1. 5
Pumps should use hydrodynamic radial bearings and thrust bearings with forced lubrication. The radial bearings should be split alloy bearings for easy assembly. The thrust bearing shall be a multi-block alloy bearing and shall be designed to carry the same thrust in both directions and to provide forced lubrication on each side. 4.8.2 Lubrication
The bearing and bearing box shall be arranged for hydrocarbon oil lubrication. Each pump unit shall be equipped with a forced lubrication system and an independent lubrication oil station. 4.8.3 Monitoring
The radial and thrust bearings shall be equipped with temperature control instruments to monitor and automatically protect the external oil temperature of the bearings. 4.9 Shaft Seal
When the linear speed of the outer circle of the shaft sleeve is not higher than 15m/s, a packing seal is allowed; when the linear speed is greater than 15m/s, a mechanical seal, floating ring seal, labyrinth seal, etc. shall be used.
4.9.1 Packing Seal
4.9.1.1 The stuffing box shall be equipped with a cooling jacket for water cooling. 4.9.1.2 Sufficient space shall be left at the outer end of the stuffing box to replace the packing. 4.9.2 Mechanical seal
4.9.2.1 The following requirements should be met when selecting mechanical seal: a) The sealing water entering the sealing part should be clean water without impurities, and its physical and chemical properties should be consistent with the water delivered by the pump; b) Maximum sealing pressure;
c) Temperature and vaporization pressure of the liquid in the sealing part; d) Special operating conditions (including starting, stopping the pump, thermal shock and mechanical shock, etc.); e) Rotation direction of the pump;
f) A cooling system for mechanical seal water with a filter and cooler should be provided. 4.9.2.2 The water temperature in the mechanical seal chamber should be ensured to be lower than the vaporization temperature under the water pressure of the chamber by a sufficient margin to avoid damage to the sealing surface caused by dry grinding due to water vaporization.
4.9.2.3 The flatness and straightness of the friction sealing surface should not exceed 0.6um, and the roughness Ra should not exceed 0.16um. 4.9.2.4 The leakage of the mechanical seal should not exceed 10mL/h and should comply with the provisions of relevant standards. 4.9.3 Floating ring seal
4.9.3.1 The floating ring should be designed as a multi-layer, intermediate water-permeable seal. The floating ring can be made of nitrided materials or copper alloys. The sleeve should have a certain hardness and be higher than the floating ring.
4.9.3.2 The surface roughness Ra of the floating ring sealing surface should not exceed 0.32μm. 641
4.9.4 Labyrinth seal
JB/T 8059-96
4.9.4.1 Labyrinth seal can be straight-through type with grooves on one side or composite straight-through type with grooves on both sides in opposite directions. Water seals are used in the grooves. 4.9.4.2 Both the sleeve and bushing should be made of hardened stainless steel to prevent erosion. 4, 10 Coupling and base
4.10.1 Coupling
4.10.1.1 Pumps should generally use gear couplings or diaphragm flexible couplings. When using gear couplings, pump speeds not exceeding 3000r/min should be lubricated with grease; those above 3000r/min should be lubricated with forced circulation oil, and the coupling should be equipped with a protective cover. 4.10.1.2 The coupling should be able to transmit the maximum torque of the power it is equipped with. 4.10.2 Base
4.10.2.1 The base can be made into a single base for the entire pump unit, or each device can have a separate base. 4.10.2.2 The base can be welded with steel plates and steel sections, or cast iron. 4.10.2.3 The base should be rigid enough, and equipped with devices to fix the position of the pump body and to test expansion. 4.10.2.4 The base should have enough flat surfaces for calibration. 4.11 Assembly and painting
4.11.1 Assembly
4.11.1.1 The parts and components of the pump should be inspected and qualified before assembly. 4.11.1.2 The pump parts should be cleaned and rust-proofed before assembly. The assembly quality of the pump should ensure that the product can be installed in place without disassembly after leaving the factory.
4.11.1.3 The tightening stretch or nut angular rotation or tightening force value of the through-bar and double-casing pump studs shall comply with the design regulations and be provided to the user.
4.11.1.4 The clearance of each part of the pump, the axial string and radial lift of the rotor shall comply with the design regulations and be provided to the user. 4.11.1.5 When assembling the pump, the axial centering of the impeller outlet and the guide vane inlet shall be ensured, and the control shall be within the allowable range specified in the design and provided to the user.
4.11.1.6 The monitoring and protection systems of the pump unit shall be tested in the manufacturer. 4.11.1.7 After the factory test, the pump shall generally be disassembled and the accumulated water in the pump shall be removed. After cleaning, anti-rust treatment shall be carried out and sealing parts (such as sealing gaskets, etc.) shall be replaced, and then assembled according to regulations.
4.11.2 Painting
The painting of the pump shall comply with the provisions of JB/T4297. The pump body, pump seat, oil and water pipes, accessories and tools of the pump should be painted according to the relevant standards. The unpainted and exposed processing surfaces should be coated with anti-rust oil.
4.12 Allowable force and torque of the pump
The maximum force and torque allowed to be borne in three directions on the inlet and outlet pipes of the pump should be clearly specified. The force and torque of the water supply pipeline on the pump should be considered when designing the pump, and the force and torque on the pump should be minimized when designing the water supply pipeline. The allowable force and torque of the pump are proposed by the manufacturer. If the user cannot meet the requirements, the two parties negotiate to determine. The force and torque of the water supply pipeline on the pump generally meet the formula (1): F+M≤1
F充+M元
Where: F—force, N;
M-torque, N·m.
4.13 Materials
(1)
4.13.1 Selection of materials
The materials of the parts should be selected according to the use conditions of the pump. The materials of the main parts should generally not be lower than those specified in Table 2. The materials of the main parts should be stated in the data sheet. If the user requires materials other than those in this table, the supplier and the buyer shall jointly agree on them. The chemical composition, mechanical properties and heat treatment of the materials shall comply with the provisions of the relevant material standards, and the key parts shall be accompanied by relevant reports on material inspection.
Table 2 Materials of main parts
Part name
Outer shell
Suction section (single shell)
Discharge section (single shell)
Suction pipe
Discharge pipe
Tap pipe
Middle section and inner shell
Suction section
Final guide vane
Balancing disc (drum)
Balancing sleeve
Shell sealing ring
Middle bushing
Stud bolt
Bearing body
4.13.2 Casting
Material name|| tt||Chromium stainless steel
Alloy steel or chromium stainless steel
Chromium stainless steel
Alloy steel
Cast iron or carbon steel
Standard code
GB11352
GB2100
GB3077, GB2100 and JB1265
GB2100
GB3077
GB9439 or GB11352
4.13.2.1 Castings shall comply with the provisions of JB/T6880.2, and the surface of castings shall be cleaned by shot blasting, pickling or other methods. 4.13.2.2 The casting size tolerances of the impeller and guide vane of the pump shall comply with the provisions of JB/T6879. 4.13.2.3 The roughness of the impeller and guide vane flow channel of the pump shall not exceed Ramax6.3μm. 4.13.2.4 When welding repair is allowed for parts, the repair welding shall comply with the provisions of JB/T6880.2 and relevant standards. 4.13.3 Forgings
Forgings shall specify an appropriate forging ratio and be heat treated after forging. No defects such as white spots that affect the use are allowed. 4.14 Minimum flow system
4.14.1 The pump must be equipped with a minimum flow system. The manufacturer shall provide the minimum flow value and operating time. 4.14.2 The minimum flow valve must be automatically controlled, and its drive device shall be able to open when the power supply is disconnected. 4.15 Warm pump
When the pump needs to be warmed, it should be equipped with a warming pump system. The manufacturer shall provide the warming pump water flow and warming pump method as well as the warming pump qualification conditions. 4.16 Pump protection
The pump should be equipped with necessary protection devices to maximize the controllability and automation of the pump. The specific protection items shall be determined by the manufacturer. It can also be handled through consultation with the user.
5 Test methods
5.1 Material test
JB/T8059-96
5.1.1 Chemical analysis methods, mechanical properties test methods and spectral analysis shall comply with the provisions of 4.13.1 relevant material standards. 5.1.2 The test methods for ultrasonic, magnetic powder, dye penetrant and X-ray photography shall comply with the provisions of GB3323, GB5677, GB7233, JB1581, JB4730, ZBJ04005, etc. 5.2 Water pressure test
The test pressure of parts subjected to liquid pressure (see 4.5) shall be 1.2 times the maximum working pressure or 1.5 times the working pressure (design pressure).
The water pressure test shall be carried out with water at ambient temperature. After reaching the specified test pressure, it shall be maintained for at least 30 minutes. The surface and sealing surface of the parts shall be free of seepage and leakage.
5.3 Performance test
The performance test method, measurement accuracy and performance deviation shall comply with the Class B provisions of GB3216-89. Under normal operating conditions (100% operating conditions), the head deviation of the pump shall not exceed ±2%. 5.4 Vibration measurement
The vibration measurement method of the pump shall comply with the provisions of GB10889. 5.5 Noise measurement
The noise measurement method of the pump shall comply with the provisions of GB10890. 6 Inspection rules
The inspection of the pump shall include the inspection of materials, parts (components), assembly and performance. The manufacturer shall formulate corresponding quality control procedures. Provide users with quality inspection records of some components as required. 6.1 Inspection of materials
The material inspection of the main parts and components of the pump shall be certified in writing, one copy shall be delivered to the user and one copy shall be kept by the manufacturer for future reference. 6.2 Inspection of parts, components and assemblies
The inspection of the quality of parts, components and assemblies shall include the following: a) Water pressure test of pressure-bearing parts;
b) Inspection of each part before assembly;
c) Internal inspection after trial operation;
d) Installation dimensions;
e) Auxiliary pipelines and other auxiliary equipment.
6.3 Performance inspection
6.3.1 The factory performance inspection of the pump shall be carried out for each pump, and the inspection items shall include: operation test, performance test, cavitation test, vibration measurement, noise measurement, bearing temperature measurement and shaft seal leakage measurement, etc. 6.3.2 The test speed shall generally not be lower than 80% of the working speed. At least one of the batch products of each specification shall be tested with clean water at normal temperature at the working speed. High temperature performance test at the working speed can also be carried out according to user requirements. 6.4 Final Inspection
Before the pump leaves the factory, it should be verified that the scope of supply is consistent with the order (including identification marks of parts, data on the nameplate, painting, monitoring, packaging and documents, etc.). Each pump should be inspected and qualified by the quality inspection department of the manufacturer and issued with a product certificate before it can leave the factory. 7 Scope of complete sets and warranty period
7.1 Scope of complete sets
JB/T8059-96
7.1.1 The manufacturer shall provide all or part of the following complete set supply scope. The specific content and quantity shall be in accordance with the provisions of the order form and data sheet: a) Pump;
b) Booster pump (including driving motor); c) Prime mover (electric motor or steam turbine); d) Speed ​​changer (hydraulic coupling or gear box); e) Accessories (including base, coupling and its protective cover, fine and coarse filter, anchor bolts, minimum flow device, pump set lubrication system and cooling system);
f) Pipeline part (including pipe fittings, flanges, over-current indicators, valves, etc. used for pump set connection in the factory and on site); g) Instruments for pump set monitoring, alarm, protection, control, etc.; h) Spare parts (the manufacturer shall provide a detailed list, and the user shall order them together with the products or separately); i) Special tools.
7.1.2 The manufacturer shall provide the following documents and drawings to the user, design institute and installation unit: a) Pump unit layout and foundation diagram (including load distribution diagram); b) Installation and operating instructions (including instructions for other accessories and pump unit assembly drawings); c) Pipeline system and thermal measurement point layout diagram (instrument instructions are provided at the same time when leaving the factory); d) Performance curve;
e) Installation diagram of important accessories;
f) Supply list and product certificate (for users only); g) Other information can be provided based on the agreement between the two parties. 7.2 Warranty period
Under normal operating conditions, the pump unit should ensure that the pump can operate for more than 25,000 hours without major maintenance, and the mechanical seal and floating ring seal should ensure that the cumulative operation is more than 8,000 hours. During this period, if the product is damaged or cannot work normally due to poor design or manufacturing quality, the manufacturer should be responsible for repairing or replacing it for the user free of charge (excluding wearing parts). 8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The pump label should be corrosion-resistant and firmly fixed on the appropriate position of the pump body to ensure that the writing is clear during the service life. The label content should include: a) Manufacturer name
b) Pump name and model;
c) Pump main parameters: flow (m/h), head (m), speed (r/min), shaft power (kW), required NPSH (m) and mass (kg), etc.;
d) Pump production number and production date.
8.1.2 The rotation direction of the pump, the inlet and outlet of the lubricating oil and cooling water should be marked with a label in an appropriate and obvious position. 8.2. Packaging and transportation
8.2.1 The pump can be packed according to the packing list only after passing the final inspection, and the packing list should be placed in each packaging box. 8.2.2 The packaging of the pump shall comply with the provisions of GB/T13384, and measures such as rainproof, moisture-proof, rust-proof and vibration-proof shall be taken. The rotor of the pump shall be axially fixed to prevent damage to the bearing and other parts due to vibration and collision during transportation. 8.2.3 The inlet, outlet and pipe holes of the pump shall be sealed with covers and pipe plugs to prevent foreign matter from entering. 8.3 Storage
The pump and its accessories shall not be stored in the open air, and measures such as moisture-proof and rust-proof shall be taken to ensure that no rust and damage will occur within one year. If the pump is stored for more than 12 months, the single-casing pump generally needs to be disassembled for inspection, and the pump core of the double-casing pump should be pulled out for inspection and re-rust-proofed. 645
Purpose of data sheet
JB/T 8059--96
Appendix A
(Appendix of standard)
High-pressure boiler feed pump data sheet
a) For design institutes, power plants, complete sets of companies, etc. to inquire, place orders and sign agreements and contracts; b) For manufacturers to quote, design and manufacture products. A2 The required content is marked with the symbol \V\ in this column. A3 The columns with symbols are filled in by the user when inquiring. The blank columns are filled with supplementary content or modified content. A4
The line number in the data sheet is mainly for the convenience of pointing out a certain item in the data sheet during use or communication, and can be marked with numbers. A5
Example 1: Line 8, means line 8, refers to the conveying medium. Example 2: Line 14/2, means the second column of line 14, refers to the effective NPSH under the maximum continuous working condition. There are basically three ways to fill in the data sheet: A6
a) Fill in specific content, such as line numbers 8, 10, etc.; b) Select, keep the required content and cross out the unnecessary content, such as line numbers 9, 61, 62, etc., c) Select and fill in, such as lines 42, 43, 44, 45 can be selected or filled in later. The filling instructions for some content in the A7 data sheet are as follows: Line
Quantity refers to the number of water supply pumps configured by the user for each unit; Density refers to the density of the conveying medium under 100% working conditions; Motor refers to the insulation level of the matching motor. High-pressure boiler feed pump data sheet
Inquiry number
Order number
Quotation number
Contract number
Date:
Date:
Date:
Pump type and working conditions, parameters
Type:
Model:
Quantity:
Transporting medium
Boiler operation mode Constant pressure/sliding pressure operation
Operation parameters (buyer/seller)
Operation temperature
Pressure inside deaerator
Purchasing Party:
Seller:
Factory No.
Unit No.:
Pump direction (from the drive end)
Clockwise/Counterclockwise
Unit capacity
Pump capacity
pH value at 23℃pH value during picklingThermal conductivity μus/cmDeaerator operation mode
100% working condition
Constant pressure/sliding pressure deaeration
Maximum continuous working condition
Effective NPSH
Required NPSH
Suction pressure
Volume flow rate at discharge pipe|| tt||Discharge pressure
Working speed
Shaft power
First intermediate shaft head
Second intermediate shaft head
Structural dimensions and main parts materials
Tap flow
Suction pipe
First tap
Second tap
Discharge pipe
How is the axial force borne
Shaft seal type and model
Bearing type
Part number
Suction pipe
Discharge pipe
Final guide vane
Double-head screw Column
Bearing body
JB/T8059—96
Nominal pressure
Radial direction:
Material grade
Tap pressure
Taking direction
Shaft can be started under any conditions without preheating. Peripheral speed of shaft sleeve outer diameter at shaft seal
Axial direction:
Part number
Suction section
Discharge section
Balancing disc/drum
Shell sealing ring
Intermediate bushing
Balancing sleeve
Yes/No
Material grade2 Warranty period
Under normal operating conditions, the pump unit should guarantee a cumulative operation of more than 25,000 hours without major maintenance, and the mechanical seal and floating ring seal should guarantee a cumulative operation of more than 8,000 hours. During this period, if the product is damaged or cannot work properly due to poor design or manufacturing quality, the manufacturer should be responsible for repairing or replacing it for the user free of charge (excluding wearing parts). 8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The pump label should be corrosion-resistant and firmly fixed on the appropriate position of the pump body to ensure that the writing is clear during the service life. The label content should include: a) Manufacturer name
b) Pump name and model;
c) Pump main parameters: flow (m/h), head (m), speed (r/min), shaft power (kW), required NPSH (m) and mass (kg), etc.;
d) Pump production number and production date.
8.1.2 The direction of rotation of the pump, the inlet and outlet of the lubricating oil and cooling water shall be marked with signs in appropriate and obvious locations. 8.2. Packaging and transportation
8.2.1 The pump shall be packed according to the packing list only after passing the final inspection, and the packing list shall be placed in the respective packaging box. 8.2.2 The packaging of the pump shall comply with the provisions of GB/T13384, and measures such as rainproof, moisture-proof, rust-proof and vibration-proof shall be taken. The rotor of the pump shall be axially fixed to avoid damage to the bearing and other parts due to vibration and collision during transportation. 8.2.3 The inlet, outlet and pipe holes of the pump shall be sealed with covers and pipe plugs to prevent foreign matter from entering. 8.3 Storage
The pump and its accessories shall not be stored in the open air, and moisture-proof and rust-proof measures shall be taken to ensure that no rust or damage occurs within one year. If the pump is stored for more than 12 months, the single-casing pump generally needs to be disassembled for inspection, and the pump core of the double-casing pump should be pulled out for inspection and re-rust-proofed. 645
Purpose of data sheet
JB/T 8059--96
Appendix A
(Standard Appendix)
High-pressure boiler feed pump data sheet
a) For design institutes, power plants, complete sets of companies, etc. to inquire, place orders and sign agreements and contracts; b) For manufacturers to quote, design and manufacture products. A2 The required content is marked with the symbol \V\ in this column. A3 The column with symbols is filled in by the user when inquiring. The blank column is filled with supplementary content or modified content. A4
The line number in the data sheet is mainly to facilitate the use or communication to point out a certain item in the data sheet, and can be marked with numbers. A5
Example 1: Line 8, indicating 8 lines, refers to the conveying medium. Example 2: Row 14/2 means the second column of row 14, which refers to the effective NPSH under the maximum continuous working condition. There are basically three ways to fill in the data sheet: A6
a) Fill in specific content, such as row numbers 8, 10, etc.; b) Select, keep the required content and cross out the unnecessary content, such as row numbers 9, 61, 62, etc., c) Select and fill in, such as rows 42, 43, 44, 45 can be selected or filled in later. The filling instructions for some contents in the A7 data sheet are as follows: Row
Quantity refers to the number of feedwater pumps configured by the user for each unit; Density refers to the density of the conveying medium under 100% working conditions; Motor refers to the insulation level of the matching motor. High-pressure boiler feed pump data sheet
Inquiry number
Order number
Quotation number
Contract number
Date:
Date:
Date:
Pump type and working conditions, parameters
Type:
Model:
Quantity:
Transporting medium
Boiler operation mode Constant pressure/sliding pressure operation
Operation parameters (buyer/seller)
Operation temperature
Pressure inside deaerator
Purchasing Party:
Seller:
Factory No.
Unit No.:
Pump direction (from the drive end)
Clockwise/Counterclockwise
Unit capacity
Pump capacity
pH value at 23℃pH value during picklingThermal conductivity μus/cmDeaerator operation mode
100% working condition
Constant pressure/sliding pressure deaeration
Maximum continuous working condition
Effective NPSH
Required NPSH
Suction pressure
Volume flow rate at discharge pipe|| tt||Discharge pressure
Working speed
Shaft power
First intermediate shaft head
Second intermediate shaft head
Structural dimensions and main parts materials
Tap flow
Suction pipe
First tap
Second tap
Discharge pipe
How is the axial force borne
Shaft seal type and model
Bearing type
Part number
Suction pipe
Discharge pipe
Final guide vane
Stud screw Column
Bearing body
JB/T8059—96
Nominal pressure
Radial direction:
Material grade
Tap pressure
Connection direction
Shaft can be started under any conditions without preheating. Peripheral speed of shaft sleeve outer diameter at shaft seal
Axial direction:
Part number
Suction section
Discharge section
Balancing disc/drum
Shell sealing ring
Intermediate bushing
Balancing sleeve
Yes/No
Material grade2 Warranty period
Under normal operating conditions, the pump unit should guarantee a cumulative operation of more than 25,000 hours without major maintenance, and the mechanical seal and floating ring seal should guarantee a cumulative operation of more than 8,000 hours. During this period, if the product is damaged or cannot work properly due to poor design or manufacturing quality, the manufacturer should be responsible for repairing or replacing it for the user free of charge (excluding wearing parts). 8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The pump label should be corrosion-resistant and firmly fixed on the appropriate position of the pump body to ensure that the writing is clear during the service life. The label content should include: a) Manufacturer name
b) Pump name and model;
c) Pump main parameters: flow (m/h), head (m), speed (r/min), shaft power (kW), required NPSH (m) and mass (kg), etc.;
d) Pump production number and production date.
8.1.2 The direction of rotation of the pump, the inlet and outlet of the lubricating oil and cooling water shall be marked with signs in appropriate and obvious locations. 8.2. Packaging and transportation
8.2.1 The pump shall be packed according to the packing list only after passing the final inspection, and the packing list shall be placed in the respective packaging box. 8.2.2 The packaging of the pump shall comply with the provisions of GB/T13384, and measures such as rainproof, moisture-proof, rust-proof and vibration-proof shall be taken. The rotor of the pump shall be axially fixed to avoid damage to the bearing and other parts due to vibration and collision during transportation. 8.2.3 The inlet, outlet and pipe holes of the pump shall be sealed with covers and pipe plugs to prevent foreign matter from entering. 8.3 Storage
The pump and its accessories shall not be stored in the open air, and moisture-proof and rust-proof measures shall be taken to ensure that no rust or damage occurs within one year. If the pump is stored for more than 12 months, the single-casing pump generally needs to be disassembled for inspection, and the pump core of the double-casing pump should be pulled out for inspection and re-rust-proofed. 645
Purpose of data sheet
JB/T 8059--96
Appendix A
(Standard Appendix)
High-pressure boiler feed pump data sheet
a) For design institutes, power plants, complete sets of companies, etc. to inquire, place orders and sign agreements and contracts; b) For manufacturers to quote, design and manufacture products. A2 The required content is marked with the symbol \V\ in this column. A3 The column with symbols is filled in by the user when inquiring. The blank column is filled with supplementary content or modified content. A4
The line number in the data sheet is mainly to facilitate the use or communication to point out a certain item in the data sheet, and can be marked with numbers. A5
Example 1: Line 8, indicating 8 lines, refers to the conveying medium. Example 2: Row 14/2 means the second column of row 14, which refers to the effective NPSH under the maximum continuous working condition. There are basically three ways to fill in the data sheet: A6
a) Fill in specific content, such as row numbers 8, 10, etc.; b) Select, keep the required content and cross out the unnecessary content, such as row numbers 9, 61, 62, etc., c) Select and fill in, such as rows 42, 43, 44, 45 can be selected or filled in later. The filling instructions for some contents in the A7 data sheet are as follows: Row
Quantity refers to the number of feedwater pumps configured by the user for each unit; Density refers to the density of the conveying medium under 100% working conditions; Motor refers to the insulation level of the matching motor. High-pressure boiler feed pump data sheet
Inquiry number
Order number
Quotation number
Contract number
Date:
Date:
Date:
Pump type and working conditions, parameters
Type:
Model:
Quantity:
Transporting medium
Boiler operation mode Constant pressure/sliding pressure operation
Operation parameters (buyer/seller)
Operation temperature
Pressure inside deaerator
Purchasing Party:
Seller:
Factory No.
Unit No.:
Pump direction (from the drive end)
Clockwise/Counterclockwise
Unit capacity
Pump capacity
pH value at 23℃pH value during picklingThermal conductivity μus/cmDeaerator operation mode
100% working condition
Constant pressure/sliding pressure deaeration
Maximum continuous working condition
Effective NPSH
Required NPSH
Suction pressure
Volume flow rate at discharge pipe|| tt||Discharge pressure
Working speed
Shaft power
First intermediate shaft head
Second intermediate shaft head
Structural dimensions and main parts materials
Tap flow
Suction pipe
First tap
Second tap
Discharge pipe
How is the axial force borne
Shaft seal type and model
Bearing type
Part number
Suction pipe
Discharge pipe
Final guide vane
Stud screw Column
Bearing body
JB/T8059—96
Nominal pressure
Radial direction:
Material grade
Tap pressure
Connection direction
Shaft can be started under any conditions without preheating. Peripheral speed of shaft sleeve outer diameter at shaft seal
Axial direction:
Part number
Suction section
Discharge section
Balancing disc/drum
Shell sealing ring
Intermediate bushing
Balancing sleeve
Yes/No
Material grade3 Storage
The pump and its accessories should not be stored in the open air, and moisture-proof and anti-corrosion measures should be taken to ensure that no rust or damage occurs within one year. If the pump is stored for more than 12 months, the single-casing pump generally needs to be disassembled for inspection, and the pump core of the double-casing pump should be pulled out for inspection and re-anti-rust treatment. 645
Purpose of data sheet
JB/T 8059--96
Appendix A
(Standard Appendix)
High-pressure boiler feed pump data sheet
a) For design institutes, power plants, complete sets of companies, etc. to inquire, place orders and sign agreements and contracts; b) For manufacturers to quote, design and manufacture products. A2 The required content is marked with the symbol \V\ in this column. A3 The columns with symbols are filled in by the user when inquiring. Fill in the blank columns with supplementary content or modified content. A4
The row numbers in the data sheet are mainly for the convenience of pointing out a certain item in the data sheet during use or communication, and can be marked with numbers. A5
Example 1: Row 8, means row 8, refers to the conveying medium. Example 2: Row 14/2, means the second column of row 14, refers to the effective NPSH under the maximum continuous working condition. There are basically three ways to fill in the data sheet: A6
a) Fill in specific content, such as row numbers 8, 10, etc.; b) Select, keep the required content and cross out the unnecessary content, such as row numbers 9, 61, 62, etc., c) Select and fill in, such as rows 42, 43, 44, 45 can be selected or filled in later. A7 The filling instructions for some content in the data sheet are as follows: Row
Quantity, refers to the number of water supply pumps configured by the user for each unit; Density, refers to the density of the conveying medium under 100% working conditions; Motor, refers to the insulation level of the matching motor. High-pressure boiler feed pump data sheet
Inquiry number
Order number
Quotation number
Contract number
Date:
Date:
Date:
Pump type and working conditions, parameters
Type:
Model:
Quantity:
Transporting medium
Boiler operation mode Constant pressure/sliding pressure operation
Operation parameters (buyer/seller)
Operation temperature
Pressure inside deaerator
Purchasing Party:
Seller:
Factory No.
Unit No.:
Pump direction (from the drive end)
Clockwise/Counterclockwise
Unit capacity
Pump capacity
pH value at 23℃pH value during picklingThermal conductivity μus/cmDeaerator operation mode
100% working condition
Constant pressure/sliding pressure deaeration
Maximum continuous working condition
Effective NPSH
Required NPSH
Suction pressure
Volume flow rate at discharge pipe|| tt||Discharge pressure
Working speed
Shaft power
First intermediate shaft head
Second intermediate shaft headbzxZ.net
Structural dimensions and main parts materials
Tap flow
Suction pipe
First tap
Second tap
Discharge pipe
How is the axial force borne
Shaft seal type and model
Bearing type
Part number
Suction pipe
Discharge pipe
Final guide vane
Stud screw Column
Bearing body
JB/T8059—96
Nominal pressure
Radial direction:
Material grade
Tap pressure
Connection direction
Shaft can be started under any conditions without preheating. Peripheral speed of shaft sleeve outer diameter at shaft seal
Axial direction:
Part number
Suction section
Discharge section
Balancing disc/drum
Shell sealing ring
Intermediate bushing
Balancing sleeve
Yes/No
Material grade3 Storage
The pump and its accessories should not be stored in the open air, and moisture-proof and anti-corrosion measures should be taken to ensure that no rust or damage occurs within one year. If the pump is stored for more than 12 months, the single-casing pump generally needs to be disassembled for inspection, and the pump core of the double-casing pump should be pulled out for inspection and re-anti-rust treatment. 645
Purpose of data sheet
JB/T 8059--96
Appendix A
(Standard Appendix)
High-pressure boiler feed pump data sheet
a) For design institutes, power plants, complete sets of companies, etc. to inquire, place orders and sign agreements and contracts; b) For manufacturers to quote, design and manufacture products. A2 The required content is marked with the symbol \V\ in this column. A3 The columns with symbols are filled in by the user when inquiring. Fill in the blank columns with supplementary content or modified content. A4
The row numbers in the data sheet are mainly used to indicate a certain item in the data sheet during use or communication, and can be marked with numbers. A5
Example 1: Row 8, which means row 8, refers to the conveying medium. Example 2: Row 14/2, which means the second column of row 14, refers to the effective NPSH under the maximum continuous working condition. There are basically three ways to fill in the data sheet: A6
a) Fill in specific content, such as row numbers 8, 10, etc.; b) Select, keep the required content and cross out the unnecessary content, such as row numbers 9, 61, 62, etc., c) Select and fill in, such as rows 42, 43, 44, and 45 can be selected or filled in later. A7 The filling instructions for some content in the data sheet are as follows: Row
Quantity, refers to the number of water supply pumps configured by the user for each unit; Density, refers to the density of the conveying medium under 100% working conditions; Motor, refers to the insulation level of the matching motor. High-pressure boiler feed pump data sheet
Inquiry number
Order number
Quotation number
Contract number
Date:
Date:
Date:
Pump type and working conditions, parameters
Type:
Model:
Quantity:
Transporting medium
Boiler operation mode Constant pressure/sliding pressure operation
Operation parameters (buyer/seller)
Operation temperature
Pressure inside deaerator
Purchasing Party:
Seller:
Factory No.
Unit No.:
Pump direction (from the drive end)
Clockwise/Counterclockwise
Unit capacity
Pump capacity
pH value at 23℃pH value during picklingThermal conductivity μus/cmDeaerator operation mode
100% working condition
Constant pressure/sliding pressure deaeration
Maximum continuous working condition
Effective NPSH
Required NPSH
Suction pressure
Volume flow rate at discharge pipe|| tt||Discharge pressure
Working speed
Shaft power
First intermediate shaft head
Second intermediate shaft head
Structural dimensions and main parts materials
Tap flow
Suction pipe
First tap
Second tap
Discharge pipe
How is the axial force borne
Shaft seal type and model
Bearing type
Part number
Suction pipe
Discharge pipe
Final guide vane
Double-head screw Column
Bearing body
JB/T8059—96
Nominal pressure
Radial direction:
Material grade
Tap pressure
Connection direction
Shaft can be started under any conditions without preheating. Peripheral speed of shaft sleeve outer diameter at shaft seal
Axial direction:
Part number
Suction section
Discharge section
Balancing disc/drum
Shell sealing ring
Intermediate bushing
Balancing sleeve
Yes/No
Material grade
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