Some standard content:
JB/T 4362--1999
Previous
Preface
This standard is a revision of JB4362-
-86 "Axial flow fan for power stations". During the revision, editorial changes were made to the original standard, and the main technical content remained unchanged.
This standard replaces JB4362-86 from the date of implementation. This standard is proposed and coordinated by the National Fan Standardization Technical Committee. This standard was drafted by: Shanghai Blower Factory Co., Ltd. The main drafters of this standard: Fan Yuenan and Liu Huming. 317
u
1 range
Mechanical Industry Standard of the People's Republic of China
Power station axial fans
Power station axial fans
JB/T 4362 - 1999
replaces JB4362--86
This standard specifies the technical requirements, quality assurance, test methods, inspection rules, marking, packaging and transportation of axial flow fans in power stations , storage and maintenance, etc.
This standard applies to axial flow blowers, induced draft fans and primary air fans for thermal power station boilers, and also applies to axial flow desulfurization fans (hereinafter referred to as fans) of thermal power stations. The working medium temperature of the blower and primary air fan shall not be higher than 70C under normal circumstances, and the working medium temperature of the induced draft fan shall not be higher than 250℃.
The medium transported by the blower and primary air fan is clean air, and the induced draft fan The conveyed medium is flue gas, and the dust content of the flue gas is ≤150 mg/m.
2 Reference standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T 1236--1985ibZxz.net
Test method for aerodynamic performance of ventilators
GB/T 2888--1991
Measurement method for noise of fans and Roots blowers GB/T13306—1991 Label
JB/T6444—1992 Fan 1
General technical conditions for packaging
JB/T 6886—1993
JB/T 6887---1993
JB/T 8689--1998
JB/T 9101--1999
3 Technical requirements
3.1 Basic design requirements
Ventictor coating technical conditions||tt ||Technical conditions of iron castings for fans
General machine vibration detection and limits
Fanner rotor balance
3.1.1 The design of the fan should comply with the requirements of this standard and be in accordance with the regulations Design and manufacture based on the approved drawings, technical documents and technical agreement and economic contract procedures signed by both the supply and demand parties.
3.1.2 Under rated working conditions, the maximum full pressure efficiency of the fan should be: qualified product: ≥80%; first-class product: ≥82%; superior product: ≥84%. 3.1.3 Under the conditions of optimized selection, when the boiler output is 100% full load, the fan operating efficiency should be greater than or equal to 80%. 3.1.4 Under the premise of a given speed, the allowable difference between the actual efficiency and the given efficiency at the operating point is: 3% near the maximum efficiency point; 5% in the efficiency area greater than or equal to 75%. ; Operating points within the efficiency area less than 75% will not be assessed. 3.1.5 The fan should have good adjustment performance. The adjustment methods can include: adjustable moving blades, adjustable stationary blades, adjustable moving blades during parking or changing the speed.
3.1.6 When using adjustable moving blades or adjustable stator blades to control flow, when the blades range from the minimum angle to the maximum angle, the action time is stipulated as follows: the air supply fan and the secondary air fan shall not exceed 30~45s. The induced draft fan should not be used for more than 45 to 60 seconds. Approved by the National Machinery Industry Bureau on July 12, 1999 318
2000-01-01 Implementation
JB/T4362—1999
3.1.7 adopts adjustable moving blades or adjustable stator blades When controlling flow, the fan should be equipped with a blade limit switch. There should be signs indicating the position of the blades on the outside of the fan casing and a device that provides electrical signals for remote control. 3.1.8 The effective value of fan vibration speed should comply with the provisions of JB/T8689. 3.1.9 The main bearing box of the fan, the hydraulic lubrication oil supply device and its connecting pipelines are not allowed to leak hydraulic oil or lubricating oil. 3.1.10 The design service life of the fan shall not be less than 15 years. Before the first overhaul, the safe operation time of the fan should be: qualified product: ≥12000h; - first-class product: ≥16000h; excellent product: ≥24000h. 3.1.11 The noise of the fan should comply with the national environmental protection and health standards, and the fan noise measurement should comply with the regulations of GB/T2888. If the conditions for measurement according to the above method are not met, it can be implemented according to the agreement between the supplier and the buyer. 3.1.12 The fan should be equipped with a surge alarm device. 3.1.13 The natural frequency of wind turbine blades is not allowed to be within ±10% of 1, 2, 3 times the rotational speed and the blade transmission frequency. 3.1.14 A drain pipe or screw plug with a diameter of not less than 50mm should be installed at the lowest point of the fan air inlet box. 3.1.15 Flexible connections should be used as much as possible between the fan inlet and outlet and the pipe network, between the air inlet box and the casing, and between the casing and the diffuser. 3.1.16 In front of the induced draft fan inlet and behind the outlet of the supply fan and primary air fan, there should be louver-type baffles for isolation to meet the needs of single machine operation and parallel connection in the system. 3.1.17 In order to ensure that the fan has good air inlet and outlet conditions and performance, the system design should reasonably arrange the elbows and pipes in front of the fan inlet and behind the outlet. If the air flow direction must be changed before the fan inlet, a guide device should be installed. 3.1.18 The foundation design must ensure that the natural frequency of the fan foundation is outside the following range: -0. 7 n~1. 3 n;
-0.8(2 n)1, 2(2 n).
Note: n is the fan speed.
3.1.19 The air intake box and diffuser should be equipped with a manhole door that is easy to access during maintenance and is sealed and removable. 3.1.20 All parts and components of the fan should be equipped with hanging brackets or hanging holes, and the coupling should be equipped with a protective cover. 3.1.21 The main bearing of the fan can be a rolling bearing or a sliding bearing, and rolling bearings are recommended. 3.1.22 The normal operating temperature of rolling bearings shall not be higher than 70C, and the maximum temperature shall not exceed 95C. The bearing temperature rise should be: qualified product: ≤60C; first-class product: ≤55℃? Excellent product: ≤55℃. The operating temperature of the sliding bearing should not be higher than 75°C3.2 Material requirements
The materials used in the fan should meet the required strength requirements. 4Quality Assurance
4.1 The cast iron parts used in the fan should comply with the regulations of JB/T6887. 4.2 If there are no special provisions, the welding quality of the fan should meet the following requirements: the basic type and size of the weld groove should comply with the relevant national standards and drawing or process requirements; the appearance of the weld should be smooth and uniform; the weld bead and weld bead, weld There should be a gentle transition between the bead and the base metal, and there should be no sudden changes in the cross-section; there should be no cracks, weld penetrations and unfilled arc craters on the surface of the weld; no hanging weld nodules larger than 2mm are allowed on the surface of the weld. The molten metal has overflowed onto the unmelted base metal beyond the weld and the existence of clusters or networks of pores, etc. 4.3 The welding parts of the fan should be welded by welders who have obtained the welder certificate for ventilator parts. 4.4 Materials used for rotating parts should have material quality certificates and test reports. 4.5 The main bearing box and hydraulic adjustment device should be separately functionally tested at full load and full speed. The test time after normal operation should not be less than 4 hours.
4.6 The moving blades can be made of aluminum alloy, forged aluminum alloy, ductile iron, cast steel or high-strength low carbon steel. The chemical composition, mechanical properties and intrinsic quality of the materials used should comply with the drawings and technical documents. Regulation. 4.7 The torsion angle deviation of adjacent sections of the moving blade is ≤±0.5°, and the torsion angle deviation of any section is ≤±1°. 4.8 The materials of rotating parts such as petioles, blades and hubs, main shafts, intermediate shafts, couplings, etc., should comply with relevant regulations. According to the requirements of standards and drawings, mechanical property tests and non-destructive flaw detection inspections are carried out. JB/T4362--1999
4.9 The installation angle deviation of the moving blades and guide vanes shall not exceed the nominal value ±2°. 4.10 The radial gap between the moving blades and the casing should be 0.001~~0.002 times the rotor diameter or comply with the drawing requirements. 4.11 The tightening torques for the connecting bolts or screws between the main parts of the fan should be given on the drawing. 4.12 The maximum difference in blade mass (kg) on ??the impeller should not exceed 5%. According to the principle of reducing the imbalance, each blade should be weighed, and the circumferential positions of the blades should be arranged in sequence according to the balancing procedure to ensure balance accuracy. 4.13. The dynamic balance of the fan rotor should comply with the requirements of JB/T9101. 4.14 Before the fan rotor is dynamically balanced, the main components that make up the rotor should be dynamically balanced individually or step by step. After the final assembly, the dynamic balance evaluation level shall not be lower than the requirements of G4 in JB/T9101-1999. 4.15 The quality of the painted parts of the fan should comply with the requirements of JB/T6886. Unless otherwise specified in the contract, the outer surface of the fan is allowed to be primed before leaving the factory.
4.16 Under the condition that the purchaser abides by the regulations on the storage, use, installation, transportation, etc. of the wind turbine, within 8000 hours after the first start of operation, the buyer is damaged or cannot work normally due to manufacturing quality problems. , the supplier will repair or replace parts for the buyer free of charge; the fan guarantee period is 18 months from the factory delivery date. 5 Test methods
5.1 The aerodynamic performance test of the fan shall be carried out in accordance with the requirements of GB/T1236 or decided by negotiation between the supplier and the buyer. 5.2 When the diameter of the fan impeller is less than or equal to 3m, the mechanical operation test should be carried out in a special workshop in the factory before leaving the factory; when the impeller diameter is greater than 3m, the mechanical operation test of the complete machine shall be determined by negotiation between the supplier and the buyer. 5.3 When conducting mechanical operation tests of fans in the factory, the rated operating speed should be used, and the functional indicators of the mechanical operation should be recorded in a list. When test conditions are limited, it is allowed to reduce the speed for mechanical operation tests. 6 Inspection Rules
6.1 Before and after the mechanical operation test of the fan, the radial gap between the moving blades and the casing should be inspected and comply with the requirements of 4.10. 6.2 The effective value of the vibration speed of the fan should meet the requirements of 3.1.18. The measuring points are located on the middle faceted flange and the bottom plate of the fan, as shown in Figure 1. The vibration values ??are measured in the vertical, horizontal and axial directions respectively, and the assessment is based on the maximum value measured in the three directions. For fans with the bearing box installed in the casing, the vibration value can be measured on the casing. Air flow direction
320
2
Figure 1
JB/T4362--1999
6.3 Inspect the main bearing under the conditions specified in 3.1.22 There must be no oil leakage in the tank, hydraulic adjustment device, oil supply device and their connecting oil pipelines.
6.4 Inspection of blade adjustment
6.4.1 Inspection of blade installation angle position and minimum and maximum angle adjustment diagram when static, which should meet the requirements of 4.9 and the drawings. 6.4.2 The adjustment force of the hydraulic adjustment device and actuator should meet the range of blade angle adjustment. 6.4.3 Check the consistency and repeatability of the blade angle indication scale and the actual blade angle when static. The deviation does not exceed ±1°. 7 Complete set range
7.1 Items and quantities of fan supply, complete set range and spare parts, This should be clarified in the contract by both the supply and demand parties. 7.2 The fan body generally includes: air inlet box, casing, rectifier guide vane ring, rotor, main bearing box, intermediate shaft, coupling and its cover, blade adjustment mechanism, diffuser, flexible joints and anchor bolts wait. 7.3 Auxiliary equipment generally includes: hydraulic lubricating oil station, mouth vibration alarm device, pressure and temperature measurement primary components, oil pipelines for bearing boxes and hydraulic adjustment devices, and special tools for impeller assembly and disassembly. The hydraulic regulating oil station and the lubricating oil station can be separated or combined into the same unit: 7.4 The driving motor or other prime mover supporting the fan. 7.5 Muffler body matching the fan.
7.6 Unless otherwise specified in the contract between the supplier and the buyer, the flow guide device before the fan inlet or after the outlet and the baffle used for isolation in the pipe network are generally not included.
8 Marks, Packaging and Transportation
8.1 Marks
8.1.1 There should be a sign in a conspicuous position of the fan or independent component, and its content should include: factory name (export products should country name), product name, model, main performance parameters of the fan or independent components, medium temperature, medium density, product number and manufacturing date, etc. 8.1.2 Indicators indicating the direction of rotation and the angular position of the blades should be marked on the obvious position of the fan or independent component housing as necessary. 8.1.3 The oil inlets and outlets of hydraulic, lubrication systems and valves in oil stations should have flow direction and oil level indication marks. 8.1.4 The size and technical requirements of the fan signboard shall comply with the provisions of GB/T13306. 8.2 Packaging and transportation
8.2.1 The fan should be packed according to the number, item, and number of pieces specified in the packing list. The packaging box should comply with the regulations of JB/T6444, and should comply with the relevant transportation regulations of waterways, highways and railways. 8.2.2 The accompanying documents should be placed in the packaging box of the fan body and packed in a moisture-proof bag. 8.2.3 Fans are allowed to be packaged simply, but the packaging of the fan rotor, main bearing box, motor oil station, couplings and instruments must be waterproof, moisture-proof and vibration-proof.
8.2.4 For fans with rotors installed, the openings at both ends of the casing should be closed with wooden covers or substitutes. 8.2.5 On the wooden cover or substitute located on the coupling side, a Hand hole for opening the cover. So that the rotor can be turned by hand at any time. 8.2.6 The exposed unpainted processing parts of the fan parts must be coated with an anti-rust layer or protected with oiled paper and cloth tape. 8.2.7 All threaded joints should be plugged with pipe plugs or closed with caps. 8.2.8 Unless due to transportation limit size restrictions or construction site installation requirements, the fans should be delivered in assembled components as much as possible. 9Storage and Maintenance
9.1 Strictly abide by the storage and maintenance regulations in the fan instruction manual. 9.2 The fan is not allowed to be stored in an environment with moisture and corrosive gas. 9.3 When parts with exposed machined surfaces are stored separately, they must be coated with anti-rust oil or grease and protected with oil paper or plastic film. If these parts need to be stored for a long time, corresponding protective measures should be taken and the corrosion of the processed surface should be checked regularly. 9.4 The fan is equipped with main components such as a time wheel, bearing box, and instruments. A storage location that is basically vibration-free should be considered in advance, and it should be placed in a room that is dry and has a small temperature difference.
JB/T 4362 - 1999
9.5 Steel structural components can be placed in the open air, but the coating must be inspected every 3 months and repaired if necessary. 9.6 The silencer sheets and expansion joints of the muffler are best stored indoors. If they are stored in the open air, they must be covered to achieve waterproof, moisture-proof and dust-proof effects.
9.7 Maintenance measures for long-term outage after the fan is assembled. 9.7.1 The storage of the fan should comply with the provisions of 9.4. The fan bearing box is filled with anti-rust oil (hydraulic equipment anti-rust oil) to the highest oil level (indicated on the oil level indicator), and the hydraulic adjustment device is filled with anti-rust oil. Check the oil level of the bearing box and hydraulic adjustment device every one month. If necessary, fill up the missing oil, and turn the impeller by hand several times a month. 9.7.2 Before storage, check whether the anti-rust measures on the processed surface are complete. 9.7.3 For intermediate shafts with couplings, if the couplings are assembled with the intermediate shaft or main shaft, the processed surface should be coated with anti-rust oil in advance; if they are packaged separately, they should be stored according to the packaging.
9.7.4 The oil supply device should be filled with anti-rust oil and stored in a dry room with a small temperature difference. The oil level should be checked monthly and replenished if necessary. And open the oil drain plug in the device every month to check whether there is precipitated condensation water, and then tighten the screw plug when the clean oil flows out. 9.8 According to the supply status, within the guarantee period, before the first test run, the supplier's personnel or engineering and technical personnel familiar with the business should participate in the inspection of the complete set of impellers, couplings, oil supply devices and other parts of the fan. , the test run can only be carried out after the inspection is confirmed that the test run conditions are met.
322
1 Before and after the mechanical operation test of the fan, the radial gap between the moving blades and the casing should be inspected and comply with the requirements of 4.10. 6.2 The effective value of the vibration speed of the fan should meet the requirements of 3.1.18. The measuring points are located on the middle faceted flange and the bottom plate of the fan, as shown in Figure 1. The vibration values ??are measured in the vertical, horizontal and axial directions respectively, and the assessment is based on the maximum value measured in the three directions. For fans with the bearing box installed in the casing, the vibration value can be measured on the casing. Air flow direction
320
2
Figure 1
JB/T4362--1999
6.3 Inspect the main bearing under the conditions specified in 3.1.22 There must be no oil leakage in the tank, hydraulic adjustment device, oil supply device and their connecting oil pipelines.
6.4 Inspection of blade adjustment
6.4.1 Inspect blade installation angle position and minimum and maximum angle adjustment diagram when static, which should meet the requirements of 4.9 and the drawings. 6.4.2 The adjustment force of the hydraulic adjustment device and actuator should meet the range of blade angle adjustment. 6.4.3 Check the consistency and repeatability of the blade angle indication scale and the actual blade angle when static. The deviation does not exceed ±1°. 7 Complete set range
7.1 Items and quantities of fan supply, complete set range and spare parts, This should be clarified in the contract by both the supply and demand parties. 7.2 The fan body generally includes: air inlet box, casing, rectifier guide vane ring, rotor, main bearing box, intermediate shaft, coupling and its cover, blade adjustment mechanism, diffuser, flexible joints and anchor bolts wait. 7.3 Auxiliary equipment generally includes: hydraulic lubricating oil station, mouth vibration alarm device, pressure and temperature measurement primary components, oil pipelines for bearing boxes and hydraulic adjustment devices, and special tools for impeller assembly and disassembly. The hydraulic regulating oil station and the lubricating oil station can be separated or combined into the same unit: 7.4 The drive motor or other prime mover supporting the fan. 7.5 Muffler body matching the fan.
7.6 Unless otherwise specified in the contract between the supplier and the buyer, the flow guide device before the fan inlet or after the outlet and the baffle used for isolation in the pipe network are generally not included.
8 Marks, Packaging and Transportation
8.1 Marks
8.1.1 There should be a sign in a conspicuous position of the fan or independent component, and its content should include: factory name (export products should country name), product name, model, main performance parameters of the fan or independent components, medium temperature, medium density, product number and manufacturing date, etc. 8.1.2 Indicators indicating the direction of rotation and the angular position of the blades should be marked on the obvious position of the fan or independent component housing as necessary. 8.1.3 The oil inlets and outlets of hydraulic, lubrication systems and valves in oil stations should have flow direction and oil level indication marks. 8.1.4 The size and technical requirements of the fan signboard shall comply with the provisions of GB/T13306. 8.2 Packaging and transportation
8.2.1 The fan should be packed according to the number, item, and number of pieces specified in the packing list. The packaging box should comply with the regulations of JB/T6444, and should comply with the relevant transportation regulations of waterways, highways and railways. 8.2.2 The accompanying documents should be placed in the packaging box of the fan body and packed in a moisture-proof bag. 8.2.3 Fans are allowed to be packaged simply, but the packaging of the fan rotor, main bearing box, motor oil station, couplings and instruments must be waterproof, moisture-proof and vibration-proof.
8.2.4 For fans with rotors installed, the openings at both ends of the casing should be closed with wooden covers or substitutes. 8.2.5 On the wooden cover or substitute located on the coupling side, a wooden cover or substitute should be provided. Hand hole for opening the cover. So that the rotor can be turned by hand at any time. 8.2.6 The exposed unpainted processing parts of the fan parts must be protected by an anti-rust layer or oiled paper tape. 8.2.7 All threaded joints should be plugged with pipe plugs or closed with caps. 8.2.8 Unless due to transportation limit size restrictions or construction site installation requirements, the fans should be delivered in assembled components as much as possible. 9Storage and Maintenance
9.1 Strictly abide by the storage and maintenance regulations in the fan instruction manual. 9.2 The fan is not allowed to be stored in an environment with humid and corrosive gases. 9.3 When parts with exposed machined surfaces are stored separately, they must be coated with anti-rust oil or grease and protected with oil paper or plastic film. If these parts need to be stored for a long time, corresponding protective measures should be taken and the corrosion of the processed surface should be checked regularly. 9.4 The fan is equipped with main components such as a time wheel, bearing box, and instruments. A storage location that is basically vibration-free should be considered in advance, and it should be placed in a room that is dry and has a small temperature difference.
JB/T 4362 - 1999
9.5 Steel structural components can be placed in the open air, but the coating must be inspected every 3 months and repaired if necessary. 9.6 The silencer sheets and expansion joints of the muffler are best stored indoors. If they are stored in the open air, they must be covered to achieve waterproof, moisture-proof and dust-proof effects.
9.7 Maintenance measures for long-term outage after the fan is assembled. 9.7.1 The storage of the fan should comply with the provisions of 9.4. The fan bearing box is filled with anti-rust oil (hydraulic equipment anti-rust oil) to the highest oil level (indicated on the oil level indicator), and the hydraulic adjustment device is filled with anti-rust oil. Check the oil level of the bearing box and hydraulic adjustment device every one month. If necessary, fill up the missing oil, and turn the impeller by hand several times a month. 9.7.2 Before storage, check whether the anti-rust measures on the processed surface are complete. 9.7.3 For intermediate shafts with couplings, if the couplings are assembled with the intermediate shaft or main shaft, the processed surface should be coated with anti-rust oil in advance; if they are packaged separately, they should be stored according to the packaging.
9.7.4 The oil supply device should be filled with anti-rust oil and stored in a dry room with a small temperature difference. The oil level should be checked monthly and replenished if necessary. And open the oil drain plug in the device every month to check whether there is precipitated condensation water, and then tighten the screw plug when the clean oil flows out. 9.8 According to the supply status, within the guarantee period, before the first test run, the supplier's personnel or engineering and technical personnel familiar with the business should participate in the inspection of the complete set of fan impellers, couplings, oil supply devices and other parts. , the test run can only be carried out after the inspection is confirmed that the test run conditions are met.
322
1 Before and after the mechanical operation test of the fan, the radial gap between the moving blades and the casing should be inspected and comply with the requirements of 4.10. 6.2 The effective value of the vibration speed of the fan should meet the requirements of 3.1.18. The measuring points are located on the middle faceted flange and the bottom plate of the fan, as shown in Figure 1. The vibration values ??are measured in the vertical, horizontal and axial directions respectively, and the assessment is based on the maximum value measured in the three directions. For fans with the bearing box installed in the casing, the vibration value can be measured on the casing. Air flow direction
320
2
Figure 1
JB/T4362--1999
6.3 Inspect the main bearing under the conditions specified in 3.1.22 There must be no oil leakage in the tank, hydraulic adjustment device, oil supply device and their connecting oil pipelines.
6.4 Inspection of blade adjustment
6.4.1 Inspect the blade installation angle position and the minimum and maximum angle adjustment diagram when static, and the regulations in 4.9 and the drawings should be met. 6.4.2 The adjustment force of the hydraulic adjustment device and actuator should meet the range of blade angle adjustment. 6.4.3 Check the consistency and repeatability of the blade angle indication scale and the actual blade angle when static. The deviation does not exceed ±1°. 7 Complete set range
7.1 Items and quantities of fan supply, complete set range and spare parts, This should be clarified in the contract by both the supply and demand parties. 7.2 The fan body generally includes: air inlet box, casing, rectifier guide vane ring, rotor, main bearing box, intermediate shaft, coupling and its cover, blade adjustment mechanism, diffuser, flexible joints and anchor bolts wait. 7.3 Auxiliary equipment generally includes: hydraulic lubricating oil station, mouth vibration alarm device, pressure and temperature measurement primary components, oil pipelines for bearing boxes and hydraulic adjustment devices, and special tools for impeller assembly and disassembly. The hydraulic regulating oil station and the lubricating oil station can be separated or combined into the same unit: 7.4 The driving motor or other prime mover supporting the fan. 7.5 Muffler body matching the fan.
7.6 Unless otherwise specified in the contract between the supplier and the buyer, the flow guide device before the fan inlet or after the outlet and the baffle used for isolation in the pipe network are generally not included.
8 Marks, Packaging and Transportation
8.1 Marks
8.1.1 There should be a sign in a conspicuous position of the fan or independent component, and its content should include: factory name (export products should country name), product name, model, main performance parameters of the fan or independent components, medium temperature, medium density, product number and manufacturing date, etc. 8.1.2 Indicators indicating the direction of rotation and the angular position of the blades should be marked on the obvious position of the fan or independent component housing as necessary. 8.1.3 The oil inlets and outlets of hydraulic, lubrication systems and valves in oil stations should have flow direction and oil level indication marks. 8.1.4 The size and technical requirements of the fan signboard shall comply with the provisions of GB/T13306. 8.2 Packaging and transportation
8.2.1 The fan should be packed according to the number, item, and number of pieces specified in the packing list. The packaging box should comply with the regulations of JB/T6444, and should comply with the relevant transportation regulations of waterways, highways and railways. 8.2.2 The accompanying documents should be placed in the packaging box of the fan body and packed in a moisture-proof bag. 8.2.3 Fans are allowed to be packaged simply, but the packaging of the fan rotor, main bearing box, motor oil station, couplings and instruments must be waterproof, moisture-proof and vibration-proof.
8.2.4 For fans with rotors installed, the openings at both ends of the casing should be closed with wooden covers or substitutes. 8.2.5 On the wooden cover or substitute located on the coupling side, a wooden cover or substitute should be provided. Hand hole for opening the cover. So that the rotor can be turned by hand at any time. 8.2.6 The exposed unpainted processing parts of the fan parts must be coated with an anti-rust layer or protected with oiled paper and cloth tape. 8.2.7 All threaded joints should be plugged with pipe plugs or closed with caps. 8.2.8 Unless due to transportation limit size restrictions or construction site installation requirements, the fans should be delivered in assembled components as much as possible. 9Storage and Maintenance
9.1 Strictly abide by the storage and maintenance regulations in the fan instruction manual. 9.2 The fan is not allowed to be stored in an environment with humid and corrosive gases. 9.3 When parts with exposed machined surfaces are stored separately, they must be coated with anti-rust oil or grease and protected with oil paper or plastic film. If these parts need to be stored for a long time, corresponding protective measures should be taken and the corrosion of the processed surface should be checked regularly. 9.4 The fan is equipped with main components such as a time wheel, bearing box, and instruments. A storage location that is basically vibration-free should be considered in advance, and it should be placed in a room that is dry and has a small temperature difference.
JB/T 4362 - 1999
9.5 Steel structural components can be placed in the open air, but the coating must be inspected every 3 months and repaired if necessary. 9.6 The silencer sheets and expansion joints of the muffler are best stored indoors. If they are stored in the open air, they must be covered to achieve waterproof, moisture-proof and dust-proof effects.
9.7 Maintenance measures for long-term outage after the fan is assembled. 9.7.1 The storage of the fan should comply with the provisions of 9.4. The fan bearing box is filled with anti-rust oil (hydraulic equipment anti-rust oil) to the highest oil level (indicated on the oil level indicator), and the hydraulic adjustment device is filled with anti-rust oil. Check the oil level of the bearing box and hydraulic adjustment device every one month. If necessary, fill up the missing oil, and turn the impeller by hand several times a month. 9.7.2 Before storage, check whether the anti-rust measures on the processed surface are complete. 9.7.3 For intermediate shafts with couplings, if the couplings are assembled with the intermediate shaft or main shaft, the processed surface should be coated with anti-rust oil in advance; if they are packaged separately, they should be stored according to the packaging.
9.7.4 The oil supply device should be filled with anti-rust oil and stored in a dry room with a small temperature difference. The oil level should be checked monthly and replenished if necessary. And open the oil drain plug in the device every month to check whether there is precipitated condensation water, and then tighten the screw plug when the clean oil flows out. 9.8 According to the supply status, within the guarantee period, before the first test run, the supplier's personnel or engineering and technical personnel familiar with the business should participate in the inspection of the complete set of fan impellers, couplings, oil supply devices and other parts. , the test run can only be carried out after the inspection is confirmed that the test run conditions are met.
322
2 Packaging and transportation
8.2.1 The fan should be packed according to the number, item and number of pieces specified in the packing list. The packaging box should comply with the regulations of JB/T6444, and should comply with the relevant transportation regulations of waterways, highways and railways. 8.2.2 The accompanying documents should be placed in the packaging box of the fan body and packed in a moisture-proof bag. 8.2.3 Fans are allowed to be packaged simply, but the packaging of the fan rotor, main bearing box, motor oil station, couplings and instruments must be waterproof, moisture-proof and vibration-proof.
8.2.4 For fans with rotors installed, the openings at both ends of the casing should be closed with wooden covers or substitutes. 8.2.5 On the wooden cover or substitute located on the coupling side, a Hand hole for opening the lid. So that the rotor can be turned by hand at any time. 8.2.6 The exposed unpainted processing parts of the fan parts must be protected by an anti-rust layer or oiled paper tape. 8.2.7 All threaded joints should be plugged or closed with caps. 8.2.8 Unless due to transportation limit size restrictions or construction site installation requirements, the fans should be delivered in assembled components as much as possible. 9Storage and Maintenance
9.1 Strictly abide by the storage and maintenance regulations in the fan instruction manual. 9.2 The fan is not allowed to be stored in an environment with humid and corrosive gases. 9.3 When parts with exposed machined surfaces are stored separately, they must be coated with anti-rust oil or grease and protected with oil paper or plastic film. If these parts need to be stored for a long time, corresponding protective measures should be taken and the corrosion of the processed surface should be checked regularly. 9.4 The fan is equipped with main components such as a time wheel, bearing box, and instruments. A storage location that is basically vibration-free should be considered in advance, and it should be placed in a room that is dry and has a small temperature difference.
JB/T 4362 - 1999
9.5 Steel structural components can be placed in the open air, but the coating must be inspected every 3 months and repaired if necessary. 9.6 The silencer sheets and expansion joints of the muffler are best stored indoors. If they are stored in the open air, they must be covered to achieve waterproof, moisture-proof and dust-proof effects.
9.7 Maintenance measures for long-term outage after the fan is assembled. 9.7.1 The storage of the fan should comply with the provisions of 9.4. The fan bearing box is filled with anti-rust oil (hydraulic equipment anti-rust oil) to the highest oil level (indicated on the oil level indicator), and the hydraulic adjustment device is filled with anti-rust oil. Check the oil level of the bearing box and hydraulic adjustment device every one month. If necessary, fill up the missing oil, and turn the impeller by hand several times a month. 9.7.2 Before storage, check whether the anti-rust measures on the processed surface are complete. 9.7.3 For intermediate shafts with couplings, if the couplings are assembled with the intermediate shaft or main shaft, the processed surface should be coated with anti-rust oil in advance; if they are packaged separately, they should be stored according to the packaging.
9.7.4 The oil supply device should be filled with anti-rust oil and stored in a dry room with a small temperature difference. The oil level should be checked monthly and replenished if necessary. And open the oil drain plug in the device every month to check whether there is precipitated condensation water, and then tighten the screw plug when the clean oil flows out. 9.8 According to the supply status, within the guarantee period, before the first test run, the supplier's personnel or engineering and technical personnel familiar with the business should participate in the inspection of the complete set of fan impellers, couplings, oil supply devices and other parts. , the test run can only be carried out after the inspection is confirmed that the test run conditions are met.
322
2 Packaging and transportation
8.2.1 The fan should be packed according to the number, item and number of pieces specified in the packing list. The packaging box should comply with the regulations of JB/T6444, and should comply with the relevant transportation regulations of waterways, highways and railways. 8.2.2 The accompanying documents should be placed in the packaging box of the fan body and packed in a moisture-proof bag. 8.2.3 Fans are allowed to be packaged simply, but the packaging of the fan rotor, main bearing box, motor oil station, couplings and instruments must be waterproof, moisture-proof and vibration-proof.
8.2.4 For fans with rotors installed, the openings at both ends of the casing should be closed with wooden covers or substitutes. 8.2.5 On the wooden cover or substitute located on the coupling side, a Hand hole for opening the lid. So that the rotor can be turned by hand at any time. 8.2.6 The exposed unpainted processing parts of the fan parts must be protected by an anti-rust layer or oiled paper tape. 8.2.7 All threaded joints should be plugged or closed with caps. 8.2.8 Unless due to transportation limit size restrictions or construction site installation requirements, the fans should be delivered in assembled components as much as possible. 9Storage and Maintenance
9.1 Strictly abide by the storage and maintenance regulations in the fan instruction manual. 9.2 The fan is not allowed to be stored in an environment with humid and corrosive gases. 9.3 When parts with exposed machined surfaces are stored separately, they must be coated with anti-rust oil or grease and protected with oil paper or plastic film. If these parts need to be stored for a long time, corresponding protective measures should be taken and the corrosion of the processed surface should be checked regularly. 9.4 The fan is equipped with main components such as a time wheel, bearing box, and instruments. A storage location that is basically vibration-free should be considered in advance, and it should be placed in a room that is dry and has a small temperature difference.
JB/T 4362 - 1999
9.5 Steel structural components can be placed in the open air, but the coating must be inspected every 3 months and repaired if necessary. 9.6 The silencer sheets and expansion joints of the muffler are best stored indoors. If they are stored in the open air, they must be covered to achieve waterproof, moisture-proof and dust-proof effects.
9.7 Maintenance measures for long-term outage after the fan is assembled. 9.7.1 The storage of the fan should comply with the provisions of 9.4. The fan bearing box is filled with anti-rust oil (hydraulic equipment anti-rust oil) to the highest oil level (indicated on the oil level indicator), and the hydraulic adjustment device is filled with anti-rust oil. Check the oil level of the bearing box and hydraulic adjustment device every one month. If necessary, fill up the missing oil, and turn the impeller by hand several times a month. 9.7.2 Before storage, check whether the anti-rust measures on the processed surface are complete. 9.7.3 For intermediate shafts with couplings, if the couplings are assembled with the intermediate shaft or main shaft, the processed surface should be coated with anti-rust oil in advance; if they are packaged separately, they should be stored according to the packaging.
9.7.4 The oil supply device should be filled with anti-rust oil and stored in a dry room with a small temperature difference. The oil level should be checked monthly and replenished if necessary. And open the oil drain plug in the device every month to check whether there is precipitated condensation water, and then tighten the screw plug when the clean oil flows out. 9.8 According to the supply status, within the guarantee period, before the first test run, the supplier's personnel or engineering and technical personnel familiar with the business should participate in the inspection of the complete set of impellers, couplings, oil supply devices and other parts of the fan. , the test run can only be carried out after the inspection is confirmed that the test run conditions are met.
322
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.