SY/T 0524-1993 Technical conditions for indirect heating devices using heat medium SY/T0524-1993 Standard download decompression password: www.bzxz.net

SY/T0524—93, Petroleum and Natural Gas Industry Standard of the People's Republic of China
Technical Conditions for Indirect Heating Devices of Heat Media
Published on November 16, 1993
China National Petroleum Corporation
Implementation on May 1, 1994
1 Subject Content and Applicable Scope
Technical Conditions for Indirect Heating Devices of Petroleum and Natural Gas Industry Standard of the People's Republic of China
SY/T 0524—93
1.1 This standard specifies the technical requirements, test methods, factory inspection, nameplate, packaging, transportation, storage and factory documents of indirect heating devices of heat media.
1.2 This standard applies to indirect heating of crude oil or other media. 2 Reference standards
GB3323
ZBE 97001
JB1162
JB1611
JB2536
SY 7510
SYJ 4002
SYJ 4003
SYJ4004
SYJ 4006
JB4708
《Steel Pressure Vessels.》
《Steel Shell and Tube Heat Exchangers.》
《Regulations on Packaging, Storage and Transportation Indicators》
《Radiography and Quality Grading of Steel Fusion Welded Butt Joints》
《Technical Conditions for Tubular Heating Furnaces》
《Ultrasonic Testing of Butt Welds of Boilers and Pressure Vessels.》"Technical Conditions for Boiler Pipe Manufacturing》
《Painting, Packaging and Transportation of Pressure Vessels.》
《Steel Butt Welding Pipe Fittings》
《Safety Regulations for Heating Furnaces for Petroleum Industry》"Construction and Acceptance Specifications for Process Pipeline Engineering in Long-distance Pipeline Stations》"Construction and Acceptance Specifications for Oil Pump Groups in Long-distance Pipelines" "Tubular Heating Furnace Engineering Construction and Acceptance Specifications", "Long-distance Pipeline Instrument Engineering Construction and Acceptance Specifications", "Steel Pressure Vessel Welding Process Assessment" TJ231 (V) "Mechanical Equipment Installation Engineering Construction and Acceptance Specifications" 3 Terms
The heat medium direct heating device is a special device that uses a direct flame heating furnace to heat the heat medium (heat transfer oil), and then exchanges heat with crude oil or other media through a heat exchanger to heat crude oil or other media. It mainly includes: heat medium circulation system, heat medium heating system, and heat medium heat exchange system. 4 Technical requirements
4.1 Materials
4.1.1 The materials used to manufacture this device shall comply with the requirements of this regulation and design drawings. 4. 1.2 The materials used to manufacture this device should have a quality certificate that meets the corresponding standards. When the quality certificate of the materials of the pressure-bearing components is incomplete or in doubt, it should be re-inspected according to the corresponding material standards. 4.1.3 The outsourced and purchased parts used to manufacture this device must have a quality certificate and can only be used after being approved by the manufacturer's inspection department. PetroChina General Company approved on November 6, 1993, and implemented on May 1, 1994
SY/T0624—93
4.1.4 The materials used to manufacture the furnace tubes of the heat medium heating furnace should comply with the provisions of SYJ31. 4.1.5 The materials used for the pressure vessels in this device should comply with the provisions of GB15D. 4.1.6 The materials used in this device The materials used for crude oil/heat medium heat exchanger shall comply with the provisions of GB151. 4.1,7 The materials of pipeline accessories (flanges, elbows, tees, valves, reducers, etc.) used in the process pipelines of this device shall comply with the design regulations and their corresponding standards. The inspection before use shall comply with the provisions of SYJ4002. 4.2 General requirements for welding
4.2.1 Welder qualifications
The welding of pressure components of this device must be performed by welders with corresponding qualifications, and the welder examination shall be conducted in accordance with the "Boiler Pressure Vessel Welder Examination Rules".
4.2.2 Welding environment
4.22.1 When any of the following conditions occur in the welding environment and there are no effective measures, welding is prohibited. The wind speed is greater than 10m/s during manual welding;
b. The wind speed is greater than 2m/s during gas shielded welding: c.
Relative humidity is greater than 90%:
d, rain, snow environment.
4.2.2.2 When the temperature of the weldment is lower than 0°C, it should be preheated to about 15°C within the 100mm range of the welding start. 4.2.3 Preparation before welding
4.2.3.1 Before welding, the pressure-bearing components should formulate welding process specifications according to the technical requirements of the drawings and the qualified welding processes, and the welders must strictly abide by the regulations.
4.2.3.2 Before welding, the grease, paint, rust, dirt, etc. within 20mm of the groove and both sides should be cleaned and polished until the metallic luster is visible. There should be no cracks in the removed parts. 4.2.4 Welding
For the provisions of the butt weld reinforcement, see Table 1. bzxz.net
Weld depth:
Pressure vessels, furnace tubes
General structural steel
Pressure, Shanghai tubes
General structural steel
Note: The weld depth for single-sided welding is the thickness of the parent material; for double-sided welding, it is the depth from the midpoint of the straight edge of the wave mouth to the surface of the parent material, calculated separately on both sides. 4.2.4.2 The leg size of fillet welds and lap welds shall be the thinner thickness of the two welds when there is no specification in the drawings. 4.2.4.3 The weld and heat-affected zone surface shall not have defects such as cracks, pores, arc pits, slag inclusions, etc. 4,2.4.4 The weld should have a smooth transition to the geometry of the parent material. 4.2.4.5 Remove the slag and flying objects on the weld surface and grind it to be flush with the parent material. 4.2.4.6 Where the design requires nondestructive testing, the welder shall stamp his own code near 50mm. 4.2.5 Weld repair
Weld repair shall be carried out in accordance with the "Rework Process Specification". The number of times the same part of the weld is repaired shall not exceed two times. For welds that are still unqualified after two repairs, if they are repaired again, they must be approved by the technical director of the manufacturing unit. The number of repairs, parts and repair conditions shall be recorded in the quantity certificate.
4.3 Heat medium heating furnace tubes
SY/T0524-93
4.3.1 The grooves at the joints of the furnace tubes shall be cut mechanically. In special cases, oxygen cutting can also be used, but the grooves must be polished to the Ra number and the metallic luster must be visible within the 20mm range. 4.3.2 Single furnace tubes shall be straightened. The straightness per meter should be less than 11mm, and the straightness of the whole length: when the length of the furnace tube is less than or equal to 6000mm, the straightness is less than 4mm, and when the length of the furnace tube is greater than 8000mm, the straightness is less than 8mm. 4.33 When manufacturing furnace tubes, the tubes of fixed lengths should be coiled according to the process requirements. If splicing is required, the distance between adjacent welds shall not be less than 500mm.
4.3.4 The verticality Af of the end face of the furnace tube at the butt joint is shown in Figure 1, and its value should comply with the provisions of Table 2. Straightness ruler"
Outer diameter of pipe D.
108D.≤159
End face verticality 4f
4.35The straightness of the pipe from welding A level should not be greater than 2.5mm per meter. When the outer diameter of the pipe is greater than or equal to 108mm, and the outer diameter of the full length pipe is less than 108mtm, the maximum of the full length L should not be greater than 5mm. The maximum of L should not be greater than 10mm,
Welded joint The measuring position of the gauge should be 60mm away from the center of the weld, see Figure 2. That is, the misalignment of the pipe joint group of
one grid is 6, see Figure 3, and its value should comply with the provisions of Table 3, 4.3.6
pipe outer diameter D.
Note S, nominal wall thickness of the pipe,
misalignment
6≤0.15. +0,6 and <1
b≤0.1S.+1 and <2
SY/T 0524—93
4,3.7 When the furnace tube is coiled, the furnace tube pitch is 2 times the furnace tube diameter plus value. The n value is shown in Table 4. The allowable deviation of the pitch is ±10mm. The straightness of the coiled tube after forming is not more than 3mm per meter, and the straightness of the entire length is not more than 7mm. After the furnace tube is pressed tightly, the gap between the circles shall not be greater than 1mm. If the gap is greater than 1mm, it should be filled. The first 4 circles of the furnace tube near the nozzle, the loose circle behind the furnace tube, and the 4 thresholds in front of the loose circle are not Working requirements. Table 4
Pipe outer diameter D.
D. <108
D. ≥108～219
D. >219
The outer diameter deviation of spiral coil shall comply with the provisions of Table 5. Table 6
2000D. 4000
D. >4000
Note: AD-Spiral coil outer diameter, n value
— 16
4.3.9 Mechanical damage depth c see Figure 4, c value should not be greater than 0.5mm, each circle of pipe damage length should be less than 10% of the total length of the circle. Figure 4
4.3.10 The undercut depth of furnace pipe welding should be less than 0.5mm, and the continuous undercut length shall not exceed 10% of the total length of the weld 4.3.11 The manufacture and selection of elbows shall comply with the provisions of SY7510. 4.4 Steel structure
SY/T0524-93
The cutting, processing, welding and assembly of steel structure shall comply with the provisions of ZBE97001. 4.4,2 The slag etc. of the flame cutting shall be dripped clean, and the assembly bolt holes shall not be processed by gas cutting. 4.4.3 The roughness of the cut of all steel plates or steel sections in the exposed part shall be Ra叟, and the acute angle threshold is blunt. 4.4.4 The diagonal deviation Ac of the rectangular frame is shown in Figure 6, and its value complies with the provisions of Table B. Figure 5
Side length, 6
(b)≤2500
2500<(6)≤5000
(6)>5000
4.5 Pressure vessel
Phenyl Ac(AcC,C2）)
The manufacture and acceptance of the pressure vessel in this device shall comply with the relevant provisions of GB150 and the "Regulations on Safety Technical Supervision of Pressure Vessels". In addition to the above provisions, the manufacture and acceptance of the heat exchanger shall also comply with the relevant provisions of GR151. .4.6 Village
4,6.1 The selection and construction of village materials shall comply with the design requirements. .4.6.2 The physical and chemical indicators, test methods and dimensional deviations of the flat ceramic fiber felt and folded ceramic fiber blanket shall comply with the provisions of the corresponding material standards.
.4.6.3 Before lining construction, the floating rust, welding slag and other dirt on the inner surface of the cylinder should be removed first, and the anti-corrosion layer should be applied. 4.6.4 Requirements for laying ceramic fiber felt
4.6.4.1 Weld the insulation nails according to the requirements of the drawings. The insulation nails should be firmly connected. The verticality deviation is allowed to be no more than 2%. When manual welding, the surrounding area should be fully welded and the contact surface should be no less than 80%.
.4.6.4.2 When installing the chest ceramic fiber felt, it should be 100% in contact with the cylinder wall and each layer of joints. Each layer of fiber felt must be installed with staggered seams. 4.6.4.3 The distance between the edge of the ceramic fiber felt and the insulation nails should be controlled within the range of 78~100mm. .4.6.4.4 During lining construction, according to the size and position of the pipe and pipe rack on the drawing, the ceramic fiber felt should be opened first, and then the compression plate should be added and fixed with a square nut.
4.6.4.5 Lining installation requirements: The surface should be flat, without defects such as cracks, missing corners, and fluffing, and there should be no gaps between felts. 4.6.4.6 After the lining is installed, it is strictly forbidden to collide with hard objects and rain erosion. 4.6.5 Folding ceramic fiber blanket construction requirements
4.6.5.1 Installation of metal fixing frame
The welding of metal fixing frame and simple wall should be carried out according to the design requirements. 4.6.5.2 Laying of flat felt
a. Apply adhesive evenly on the inner surface of the cylinder according to the drawings and process requirements; b. The bottom layer of flat felt is laid flat in the metal fixing frame and compacted to make the joints tightly combined; c. The laying should be uniform and flat, and no exposed metal gap holes are allowed. -4.6.5.3 The installation of folding blankets shall comply with the following provisions:5
SY/T 0524--93
a: Before installing the folding blankets, check the quality of the flat felt. Check whether there are loose joints and exposed metal parts. The folding blankets can be installed only after they are checked:
b. When installing the folding blankets, check the external dimensions and specifications. If there is a large size error, re-bundle and reshape it. If the ends of the folding blankets are not aligned, they should be trimmed;
c. When installing the folding blankets, insert the folding blankets between the metal fixing frames according to technical requirements and insert the fixing steel bars: d. When installing the shrinkage compensation strips, the felt strips and the folding blankets are required to remain flat and beautiful: e. After the folding blankets are fully installed, no looseness or local holes are allowed. 4.6.5.4 Painting of high-temperature paint
After checking the lining according to the drawing requirements and verifying that it is qualified, paint the high-temperature paint according to the design requirements. 4.7 External insulation
4.7.1 The selection of external insulation materials shall meet the design requirements. 4,7,2 The installation of external insulation shall be compacted and full, and the thickness compression shall be less than 10%, and no through holes or gaps are allowed. The outer protective plate shall be flat, and no bumps greater than 10mm shall appear. 4.8 Process pipes and installation
4.8.1 The manufacturing and installation of various pipelines in the device shall comply with the provisions of SYJ4002. Pipeline insulation shall be carried out after the load test is completed.
4.8,2 The manufacturing and selection of auxiliary equipment such as heat medium pumps and air compressors shall comply with the relevant standards, and the installation shall comply with the provisions of TJ231 (V).
4.9 Instrument installation
4.9.1 The instrument shall strictly comply with the transportation and storage requirements of the manufacturer and SYJ4005, and strengthen protection to prevent damage. 4.9.2 Before the installation of the instrument, it must be inspected, checked and calibrated. It can only be installed after it meets the accuracy requirements when the instrument leaves the factory. 49.3 When the instrument is calibrated according to SY4005, the calibration unit must be carried out by a department with currency-level or equivalent qualifications. 4.9, 4 The installation of the instrument must be carried out according to the design drawings and technical requirements. In addition to ensuring the performance quality, the appearance must be firm, the wiring must be neat and the specifications must be clear and firm.
4.9.6 After the installation of the instrument is completed, it shall be inspected and accepted according to the requirements of SYJ4005. 4.10 Assembly
4.10.1 Before assembling the single equipment and pipelines, foreign objects should be cleaned. 4.10.2 Before assembling the single equipment, the connection ruler should be checked. 411 Painting
The painting of this device shall comply with the provisions of ZBE07001. 5 Test method
5.1 The welding process assessment of the furnace pipe shall comply with the provisions of JB47D8. 5.2 Nondestructive testing
5.2.1 The butt welds of the furnace tubes shall be subjected to 100% radiographic testing, or 100% ultrasonic testing plus 20% radiographic testing re-inspection. Ultrasonic testing shall comply with the Class I standard in JB1152, and radiographic testing shall comply with the Class I standard in GB $323. 5.2.2 The nondestructive testing of pressure vessels shall be carried out in accordance with the relevant provisions of GB150 and GB151. 5.3 Pipe cleaning ball test
Pipe cleaning ball test must be carried out after the furnace is coiled, and the diameter of the rubber ball used for pipe cleaning shall be greater than or equal to 86% of the inner diameter of the furnace tube. 5.4 Water pressure test
5.4,1 After the furnace tubes are coiled, the overall pressure test shall be carried out, and the test method shall be carried out in accordance with the provisions of SYJ31. The test water temperature shall not be lower than 5°C, and the pressure shall be stabilized for 30 minutes at the test pressure, and then reduced to the working pressure and stabilized for 4 hours. During the test, there is no leakage or sweating on the surface, and the pressure is stable, which is qualified. 5.4.2 After the water pressure test is completed, the liquid should be drained. 6
SY/T 052493
5.4.3 The water pressure test of pressure vessels shall comply with the provisions of GB150 and GB151. 6 Factory inspection
.6.1 Basic inspection requirements
6.1.1 All products leaving the factory must be inspected and qualified by the inspection department before they can be released. 6.1.2 For sampling inspection items, if the inspection results do not meet the requirements of this standard, the same batch of products should be re-tested with double the number of products. If they still fail, the batch of products should be inspected one by one. 6.2 Inspection Items and Requirements
6.2.1 Appearance
a. Equipment dimensions, equipment installation, and connection dimensions shall comply with the requirements of the drawings; b. Appearance quality of welds of single equipment shall comply with the requirements of the drawings; c.
External insulation shall comply with the provisions of 4.7 of this standard
d. The paint shall be evenly coated without exposed metal, and shall comply with the provisions of 4 and 11 of this standard; the nameplate shall comply with the provisions of 7.1 of this standard;
All openings shall be sealed to prevent foreign matter or water from entering. Raw Material Inspection
Material certificates of pressure-bearing components shall be complete:
b: Quality certificates of welding materials shall be complete: Other main materials shall comply with the requirements of drawings and processes: c.
d. Quality certificates of outsourced and purchased parts shall be complete. 6.2.3 Welding Quality Inspection
a. Nondestructive testing film, records should be complete: b, post-weld heat treatment records should be complete;
Check the appearance quality of the weld should meet the requirements of 4.2.4 c.
d. Check the welding repair records should be complete. 6.2.42
Assembly quality inspection
The misalignment of the weld joint should meet the requirements of the drawing.
Lining and external insulation should meet the requirements of the drawing b.
The verticality of each connecting flange surface and the axis of the pipe and the cylinder should meet the requirements of the drawing, d. The verticality of each connecting flange surface and the axis of the pipe and the cylinder should meet the requirements of the drawing. 6.2.5 The record of the water pressure test should meet the requirements of the drawing. Nameplate, packaging, transportation, storage and factory documents 7.1 Nameplate
The heat medium indirect heating device shall be equipped with a fixed metal nameplate in an obvious position. The pressure vessel nameplate shall comply with the provisions of GB150, the heat exchanger nameplate shall comply with the provisions of GB161, and the heat medium furnace nameplate shall indicate the following contents: a. Name and model of the heat medium furnace:
b. Rated heat load kw;
C. Heating medium:
Rated working pressure MPa or kPa;
Rated working temperature 'C:
Thermal efficiency %:
Equipment dimensions mm:
Equipment total weight t:
Manufacturing date;
J. Export number;
k. Manufacturer name and manufacturing license number: 1 Factory inspection unit and inspection mark.
7.2 Packaging
$Y/T 0524--93
7.2.1 This device is in the form of naked packaging, in which the pipe mouth and flange sealing surface are sealed with iron sheet or fiberboard. 7.2.2 Consumable parts, fasteners and other components and other accessories are packed in boxes. 7.3 Transportation
There must be obvious signs of protection from rain and dumping. 7.3.1
7.3.2 It must be firmly fixed on the transport vehicle with steel wire rope to prevent the occurrence of string movement. 7.3.3 Packaging, transportation, instructions and signs shall comply with the provisions of GB191 and JB2536. 7,4 Storage
了,4,1 When storing this device, the liquid in the equipment should be cleaned up. 7.4.2 The storage of this device must have preventive measures.
7.5 Factory documents
7.5.1 The following drawings and technical documents shall be provided when the product leaves the factory. a.
Instruction manual;
General drawing of the device, assembly drawings of each unit:
Basic reference drawing:
Wiring diagram;
Process flow chart:
Delivery list;
Strength calculation sheet of main pressure-bearing components
Drawings of wearing parts:
Product certificate and quality certificate.
The delivery documents of pressure vessels shall also comply with the requirements of the "Regulations on Safety Technical Supervision of Pressure Vessels and". 5.2
Additional instructions,
This standard was proposed by the Planning and Design Institute of China National Petroleum Corporation. This standard was drafted by China National Petroleum and Gas Pipeline Machinery Manufacturing Co., Ltd. The main drafters of this standard are Ma Changmao, Jiang Li, Li Shuzhen and Liu Fuyuan. 8
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