Some standard content:
Industry Standard of the People's Republic of China
This standard has been transformed into the petroleum and natural gas industry standard after rectification. The standard number is: SY/T0538-94. This is hereby stated. ZB E97 001--90
Technical conditions for tubular heating furnaces
1990-02-27 Issued
Ministry of Energy of the People's Republic of China
1990--07-01 Implementation
Subject content and scope of application
Referenced standards
Steel structure
Burner
Factory inspection documents, marking, packaging and transportation
1 Subject content and scope of application
Industry standards of the People's Republic of China
Technical conditions for tubular heating furnaces
ZB E97 001-90
This standard specifies the technical conditions for materials, welding, furnace tubes, steel structures and bacon, furnace lining, burners and other accessories of tubular heating furnaces.
This standard applies to tubular heating furnaces fueled by crude oil and natural gas in oil and gas fields and long-distance pipelines. 2 Reference standards
JR1152 Ultrasonic flaw detection of butt welds of furnaces and steel pressure vesselsGB3323 Radiography and quality classification of steel fusion welded butt jointsJB755 Technical conditions for pressure vessel forgings
JB 2536 Pressure vessels for painting, packaging, transportation of steel pressure vessels
GB 1504
JR2880 Technical conditions for steel explosion-jointed atmospheric pressure vesselsSHJ 1037
Technical provisions for steel structure engineering and installation of accessories for tubular heating furnaces in refineriesTechnical conditions for welding of carbon steel and chrome steel furnace pipes for tubular heating furnaces in refineriesSHJ 1038#
SHJ 1040
Technical conditions for burner engineering of tubular heating furnaces in refineriesSHJ1044
Technical conditions for masonry engineering of tubular heating furnaces in refineriesSHJ 1045
Tube heating furnace in oil refinery, high alumina cement, vermiculite, light plaque, heat-resistant seal engineering technical conditions ZBE97003 Types and basic parameters of heating furnaces in petroleum industry ZBE97002 Design technical regulations for tube heating furnaces SY31 Safety regulations for heating furnaces in petroleum industry SY7610 Steel butt welding pipe fittings
JB1611 Technical conditions for boiler tube manufacturing
3 Materials
The selection of materials for manufacturing tube heating furnaces shall comply with the requirements of ZBE9?002 and design drawings. 3.1
3.2 The materials for manufacturing tube heating furnaces must have quality certificates that meet the corresponding standards. 3.3 The manufacturing unit shall re-inspect the materials that are incomplete or have doubts about the quality certificates according to the corresponding material standards and order contracts. 3.4 The materials for manufacturing tube heating furnace lamps must be inspected by the inspection department according to the provisions of Articles 4.0.3 and 4.0.4 in SYJ31. Without inspection and inspection, materials are not allowed to be put into the furnace. 4 Welding
4.1 Welder Qualification
The welding of tubular heating furnaces must be performed by welders who have passed the examination. The welder examination shall be conducted in accordance with the "Boiler Pressure Vessel Welder Examination Rules" issued by the former State Labor Bureau in the document (80) Labor General Steel No. 29. 4.2 Welding Environment
When any of the following conditions occur in the welding environment, welding is prohibited without effective protective measures. Approved by the Ministry of Energy of the People's Republic of China on February 27, 1990 and implemented on July 1, 1990
a: Crazy speed 8/s
b, relative humidity>90%,
c. Raining
d. Snowing.
ZEE9701-90
When the temperature of the weldment is lower than 0°C, it should be considered to preheat to about 15°C within 100mm of the starting welding point. 4.3 Preparation before welding
4.3.1 When welding with a heating furnace, the welding process of the heating furnace should be formulated according to the technical requirements of the drawings, and the welder must strictly abide by this regulation.
4.3.2 Before welding, the grease, paint, rust, dirt, etc. within 20㎡m of the glass mouth and both sides should be completely cleaned, and polished with emery cloth or other mechanical methods until the golden light is visible. The cleaned area should be free of marks. 4.4 General requirements for welding
4.4.1 The residual height of double-joint welds should be implemented in accordance with the provisions of GB150. 4.4.2 The surface of the weld and the heat-affected zone shall not have defects such as cracks, pores, isolated pits, burn-through, slag inclusions, incomplete penetration, sand holes, etc. 4.4.3 The weld should have a smooth transition geometry. 4.4.4 Grind the weld surface, remove the missing or mechanical damage, and the thickness should not be less than the thickness of the base material. 4.4.5 The slag and spatter on both sides of the weld must be removed. 4.4.6 The weld should be designed to be inspected by non-destructive testing. The welder should stamp his own steel code near the weld. 4.5 Weld repair
4.5.1 When defects that are not allowed to exist are found on the weld and need to be repaired after removal, the repair measures should be agreed by the welding technicians. The weld can be repaired no more than twice. For welds that have failed to meet the requirements of two repairs, if they are repaired again, each time they must be approved by the technical director of the manufacturing unit.
4.5.2 For austenitic stainless steel with anti-corrosion requirements, the repaired parts must still ensure the original tightness. 5 Furnace tubes
5.1 Hydrostatic test of materials
5.1.1 If the materials of furnace tubes with quality certificates are in accordance with the certificates, the hydrostatic test may not be performed. 5.1.2 For furnace tubes without factory quality certificates, the hydrostatic test shall be performed one by one. Under the test pressure, the pressure stabilization time shall not be less than 5 minutes. During the pressure stabilization time, the tube shall not have any leakage or sweating, and the pressure shall be stable. The test stress shall be calculated according to formula (1);
where: p is the hydrostatic test pressure, MPa, S is the minimum thickness of the furnace tube, mm, a is the inner diameter of the furnace, mm, E is the allowable stress, MPa (40% of the tensile strength). 5.2 Furnace welding
.2.1 For any steel type that the welding unit intends to weld for the first time, welding materials and welding methods that are used for the first time, and any change in welding processes that have been evaluated as qualified, the welding process should be evaluated before the pipe is welded. The evaluation method shall refer to Appendix I of the "Regulations on Safety Technical Supervision of Steam Boilers" issued by the Ministry of Labor and Personnel in Document No. 4 of Labor and Personnel [1987]. .2.2 The type and size of the welding groove of the furnace tube shall be processed according to the design drawings. The groove deviation shall be less than 1mm. The tube can be welded only after cleaning.
5.2.3 Each group of furnace baskets shall be flush, and the length difference shall not exceed 2m. Single-plate furnace tubes shall be made as a whole. If splicing is required, only one splicing is allowed, and the splicing position shall be determined by the design unit. After splicing, the allowable deviation of the straightness per meter length shall not exceed 1.5mm, and the distance between adjacent welds shall not be less than 2
ZB E97 001-90
hand 500mm.
5.2.4 Before assembling the furnace tubes, they shall be corrected. The allowable deviation of the straightness per meter shall not exceed 1mm. The allowable deviation of the straightness of the whole length shall not exceed 6000mm, and the allowable deviation of the straightness per meter shall not exceed 4m: when the furnace length exceeds 100mm, the allowable deviation of the straightness shall not exceed 1mm. When the furnace tube is butt-jointed with the elbow or other accessories, the allowable deviation of the straightness shall not exceed 1mm, and forced butt-jointing is strictly prohibited. The butt joint shall comply with the provisions of JB1611. When the outer diameter is not more than 108mm, the outer misalignment shall not exceed 10% of the thickness plus 0.5, and shall not exceed 1m. When the outer diameter is greater than 108mm, the outer misalignment shall not exceed 10% of the thickness plus 1mm, and the H shall not exceed 2mm. If the nominal diameter is the same but the wall thickness difference exceeds 1 μm, thinning should be carried out, and the length should not be less than 4 of the thinning thickness. 5.2.6 After assembly, spot welding should be carried out immediately. Spot welding should be carried out at least 3 places and evenly distributed around the pipe. The spot welding length should be 2 to 3 times the pipe length. If there are defects such as cracks at the spot welding place, spot welding should be carried out again. The pipe after spot welding should not be moved or knocked at will. 5.2.7 The welding should adopt a multi-layer construction method. The first layer of welding should use 3.2 μm welding rod to ensure good fusion. For welding carbon steel pipes, T507 or T427 welding rods should be used. For welding ICr18Ni9Ti steel pipes, TH18-8Nb-7 welding rods should be used. When welding 1Cr18Ni9Ti steel and embedded steel, TB25-13-7 welding rods should be used. 5.2.8 When the design pressure is greater than or equal to 6.4MPa, or the design temperature is greater than or equal to 500C, argon arc welding should be used for welding. 5.2.9 The furnace tube splicing process should use argon arc welding for primer. 5.2.10 The straightness of the furnace tube after splicing should comply with the provisions of 5.2.4. 5.2.11 There should be no arc pits in the welding of the nail head of the nail tube. When the depth of the pit exceeds 0.5mm, it should be ground and re-welded. There should be no cracks, heavy skin, and slag inclusions after welding. The fusion area between the nail head and the furnace tube should not be less than 80%. The verticality deviation of the nail head to the furnace tube shall not exceed 2mm, the horizontal and vertical distance allowable deviation of the nail head is ±2mm, and the total number of nail heads is allowable. 2%. The nails should be made of pickled round steel. 5.3 Furnace tube quality inspection
5.3.1 New welds should be inspected in accordance with 4.4.2 and 4.4.3. Check and make sure that the following requirements are met: a. The welded surface should be complete, small scale-like and slightly convex. The height should not be less than 1mm and not more than 30% of the pipe wall thickness. The height of the overhead weld should be between 2.5 and 40% of the wall thickness. b. The undercut depth of the weld should not exceed 10.5mm, and the total length of the undercut on both sides of H should not exceed 10% of the total weld length. 5.3+2 butt joints should be inspected by 100% radiographic testing, and 100% ultrasonic testing and at least 20% radiographic re-testing can also be carried out. Ultrasonic flaw detection should meet the Class I standard in JB1152. Radiographic flaw detection should meet the Class II standard in GB3323. 5.3.3 After the furnace pipe is welded, a water pressure test should be carried out in sections. The test pressure shall be carried out in accordance with Article 5.7.2 of SYJ31, and the test water temperature shall not be lower than 5°C. Under the test pressure, the pressure shall be stabilized for 30min, and then the working pressure shall be reduced and stabilized for 4h. During the test period, the surface shall be free of rust and the force shall be stable.
5.4 The parts or selection of elbows shall comply with the provisions of SY7510. 6 Steel structure
6.1 Cutting and processing of structure
6.1.1 The allowable deviation value of the materials used in steel structure shall comply with the provisions of Table I, otherwise it shall be corrected before cutting. 6.1.2 When the steel is corrected and cold bent at room temperature, its minimum bending radius and maximum variable height f shall not exceed the current provisions in Table 2. 6.1.3 When the temperature of steel is lower than ~20°C, it is prohibited to knock, hammer and pierce the steel. 6.1. During the process of heat correction and heat treatment, the burn loss of plates and profiles should be less than 10% of the thickness. 6-1-5 The cut of steel and steel bars shall not have cracks and burrs exceeding 1mm. The allowable deviation of cutting shall not exceed the following provisions:
When the length of steel is equal to or less than 5000mm, it is ±3mm; a.
When the length of steel is greater than 5000mm, it is ±5mm; c. The length and width of the steel bar are ±2mm respectively, and the diagonal is ±3mm. 6.1.6 It is strictly forbidden to cut steel with electric power.
Partial deflection of steel plates and flat steels
The deflection of angle steels, channel steels and I-beams
The non-verticality of the limbs of angle steels
The slant of the edge of channel steels and I-beams
ZB E97 001--90
Table 1 Allowable deviation of materials after correction
Allowable deviation value, ml
Within 1000mm range,
If 214, then f≤1:
If 14, then 1.5
1=1/1000 of length,
but not more than 5
4≤6/100
Table 2 Minimum bending radius and maximum bending sagittal value of cold correction and cold bending
For cloud auxiliary line
Instrument for flat
Steel axis)
(b, width)
I-beam
ZB E97 001--90
For the axis
Note, r-bending radius, f-bending sagitta: L-bending chord length, 50A
Continued Table 2
6.1.7 The column and the column foot plate surface should be flat, and the gap between the flat surfaces should not be greater than 0.3 mountain II. The contact surface shall not be less than 70% of the total area.
6.1.B. The longitudinal misalignment of the section should not be greater than 10% of the wall thickness and not greater than 3mm. 6-1.9 The floor angle formed by the longitudinal weld of the section should not be greater than 10% of the wall thickness plus 2mm, and not greater than 5m. Check with an inner or outer sample with a chord length equal to (1/6)D and not less than 300mm, see Figure 1. (1/6) D and not less than 300
t+te>Di, less than 300
6.1.10 The difference e between the maximum diameter and the minimum diameter on the same section shall meet the following requirements (see Figure 2 for the code): e=D-D<(1/100)Di, and not more than 25mm. Figure 2
When there is an opening for reinforcement, it should be measured at a position 100 Ⅱm away from the edge of the reinforcement. 6.1.11 The allowable deviation of the circumference of the cylinder section shall meet the requirements of the end face of the installation, not less than (1/1000) knife, and not more than 2mm. 6.1.12 During manufacturing, mechanical damage to the steel surface should be avoided, and serious sharp scratches should be polished to make them smooth transition. The depth of the grinding area shall not exceed 10% of the steel plate thickness and shall not be greater than 2mm6.1.13 Circumferential misalignment b of the cylinder assembly, when the thickness of the two cylinder sections is equal, shall comply with the following provisions (see Figure 3 for the code): 5
Nominal true diameter Ds
Allowable deviation of the outer length
aS-6mm, u(25/100)S,
ZB E97 001--90
800～1 200
b 6≤Ss10rm附, b≤(10/100)S
c. s>10mm, h≤(10/100)s+1nm:mm
1360~1801790~24001260030003203-4200±9
6.1.14 The angle E formed at the butt weld is not greater than 10% of the wall thickness plus 2mm, and not greater than 5mm. Check with a ruler of not less than 300mm in length, Figure 4.
6.1.15 The allowable deviation of the straightness of the cylinder is not more than 2/1000 of the length of the cylinder. For cylinders with internal bag matching requirements, heat treatment shall be carried out according to the requirements of the drawings. The straightness inspection of the cylinder is to pull 0.5Ⅲm correction pins at the horizontal and vertical planes passing through the center line, that is, along 0°, 90°, 180°, and 270°. The distance between the measuring position and the longitudinal weld shall not be less than 100 mm. When the thickness of the cylinder is different, the thickness difference shall be deducted when calculating the straightness. 6.1.16 During assembly, the distance between the welds of adjacent cylinder sections or the distance between the end of the head weld and the longitudinal weld of the adjacent cylinder section shall not be less than 100 mm.
6-1.17 For cylinders designed with the bottom plate fully supported on the foundation and assembled on site, after the bottom plate is welded, the local concave and convex deformation shall not exceed 2% of the deformation length and shall not exceed 30 mm. 6.1.18 The flange surface shall be perpendicular to the center line of the pipe. When installing the pipe flange, the horizontal or vertical surface of the flange surface shall be ensured, and the allowable deviation shall not exceed 1% of the outer diameter of the flange (calculated as 100 mm when the outer diameter of the flange is less than 100 mm), and the flange shall not exceed 3 m2. If there are special requirements, they shall be indicated on the drawings.
6.1.19 The screw holes of the pipe flange shall be symmetrically distributed on both sides of the center line of the cylinder shaft, as shown in Figure 5. If there are special requirements, they should be noted in the drawings.
6, 1.20 When the head welding flange is assembled with the pipe, the gap between the outer diameter of the pipe and the inner diameter of the flange shall not exceed 2mm, and the distance between the pipe end and the flange seal shall be s+3mn, see Figure 6.
6.1.21 The tolerance of the machined surface without tolerance size shall comply with the TT14 grade specified in GB1804 "Tolerances and fits without tolerance size limit deviations", and the tolerance of the non-machined surface without tolerance size shall comply with the IT16 grade. If the free size is a length dimension, the upper deviation of the length dimension is equal to the upper deviation of the hole in GB1804, and the lower deviation is equal to the lower deviation of the code.
ZB E97 00190
6.1.22 The longitudinal misalignment of the reverse smoke pattern is not more than 0.8 mm when the wall thickness is less than or equal to 6 mm, and not more than 1.5 mm when the wall thickness is greater than 76 mm. The circumferential misalignment is not more than 1.5 mm when the total thickness is less than or equal to 6 mm, and not more than 2 mm when the thickness is greater than 6 mm. 6.1.23 The allowable deviation of the measured diameter is not more than (0.2/100) (D is the diameter of the smoke haze): the allowable deviation of the circumference is not more than (0.25/100) D, and the allowable deviation of the roundness is not more than (0.4/100) D. 6.1.24 The allowable deviation of the height of the smoke window is less than 20 mm, and the allowable deviation of the linear dimension should be less than 1/1000 of the lower length, but not more than 15 mm. 6.1.25 After the smoke window guard and operating mechanism are installed, they must be flexible and easy to operate. 6.2 Steel structure welding
6.2.1 The appearance inspection of welding age shall be carried out in accordance with Articles 4, 4.2 and 4.4.3. 6.2.2 The undercut depth of the steel weld shall be less than 0.5mm when the plate thickness is less than 10mm; when the plate thickness is equal to or greater than 10mm, it shall be less than 1mm.
G.2.3 The difference between the highest and lowest points on the surface of the weld shall not exceed 3mm, the difference between the highest and lowest points shall not exceed 3mm, and the highest point shall not be lower than the weld body.
6.2.4 The curvature of the welded tube sheet shall not exceed 3mm in each length L; and shall not exceed 10mm㎡ in the entire length. The allowable deviation of the tube hole diameter is ±1mm, and the allowable deviation of the tube center distance is not less than 1.5mm. The cumulative deviation of the tube center distance on the welded tube sheet shall not exceed 5mm. 6.2.5 The undercut depth of the weld seam of the simplified body shall not exceed 0.5mm, the continuous length of the undercut shall not exceed 100mm. The total length of the undercut on both sides of the weld shall not exceed 10% of the length of the weld.
6.2.6 When welding the flat flange to the pipe, the inner side shall be polished first and then the outer side. The height of the inner side weld leg is F = 0.7S; the height of the outer side weld leg is F2-S, and shall not exceed 16m, see Figure 7.
6.2.7 The welds on the cylinder body covered by the support, reinforcement ring and pad shall be polished to be flush with the mother tree. 6.3 Assembly of steel structure
6.3.1 The verticality of the column is allowed to deviate by no more than 1/1000, and the total deviation shall not exceed 10mm. 6.3.2 The height of the body shall not exceed 1I/1000 (H, the height of the column), and shall not exceed 15mm. 6.3.3 Column.1 The allowable deviation of the spacing between two adjacent connecting members is ±5mm. 6.3.4 The permissible deviation of the height of the pull is +m.
6.3.5 The permissible deviation of the span of the steel frame is ±5m.m. 6.3.6 The permissible deviation of the support surface of the column from the design elevation is ±5mm. 6.3.7 The permissible deviation of the main beam water level is not more than 3%. 6.3.8 The permissible deviation of the center of the upper flange of the main beam from the vertical plane passing through the center of the support should be less than or equal to /600, see Figure 8. 6.3.9 The permissible deviation of the verticality is not more than 1.5H/1000 (H: height). Figure
6.3.10 The permissible deviation of the coaxiality of the tube holes of the tube sheets at both ends and the middle tube sheet or tube rack is not more than 4mm. ZB E97001-90
6.5.11 The verticality deviation of the tube sheet is allowed to be no more than 5/1000 of the height. 6.3.12 When installing the tube sheet and tube rack of heat-resistant cast iron parts, the bolts should not be over-tightened, and should be returned 1/4 buckle after tightening. It is strictly forbidden to force installation and knocking.
7 Furnace lining
7.1 Fiber felt structure
7.1.1 Weld the insulation nails according to the drawings. The insulation nails should be welded firmly. The verticality deviation is allowed to be no more than 2%, and the contact surface around the manual welding is not less than 80%.
7.1.2 The inner surface of the furnace body should be completely cleaned of floating rust, welding slag and other pool dirt, and then the anti-corrosion layer should be cleaned. After drying, construction can be carried out. 7.1.3 When installing the fiber felt, the joints of each layer and the layers should be 100% fitted: the layers of fibers must be installed with staggered seams. During construction, the maximum compression of the rock wool board shall not exceed 10% of the thickness. 7.1.4 The distance between the edge of the refractory fiber and the insulation nails should be controlled within the range of 76 to 100 mm. 7.1.5 During the construction of the furnace village, the size and position of the pipe and arm on the drawing should be followed. First, the cotton board and refractory fiber felt should be opened, and then installed. After installation, all the gaps should be filled with refractory fiber felt, and then the compression piece should be fixed with a square nut. 7.1.6 After the furnace tree is installed, the insulation nails must be covered with a 10 mlm thick refractory fiber block with a high overflow adhesive. 7.1.7 The requirements for the installation quality of the furnace lining are: the surface is flat, without cracks, missing corners, fluffing and other defects, and there should be no interlayer between the felts.
7.1.B After the installation of the furnace lining: It is strictly forbidden to collide with hard objects and rain erosion. 7.2 Structure
Refer to SHI1044.
T.3 Casting structure
Refer to SHI1045.
8 Burner
The manufacture or selection of the burner shall comply with the provisions of SHJ1040. 9 Painting
9.1 General provisions
9.1.1 Parts that need to be painted must be inspected and painted. 9.1.2 Before spraying paint, the metal surface must be kept dry and oil, rust, welding spatter and other debris that affect the quality of the paint must be cleaned. And the metal itself.
9.1.3 The furnace body pipe, flange, flue and smoke window are painted with two coats of anti-rust paint. 9.1.4 The color and type of paint shall be subject to the requirements of the drawings. 9.2 Operation method and paint quality of paint
The paint of the tubular furnace is sprayed or brushed. When brushing, the direction of the paint must be horizontal and vertical. 9.2.1
During the painting process, the melted hair and other debris attached to the paint surface should be cleaned and dried in time. 9.2.2
The thickness of the sprayed paint should be uniform, and there should be no defects such as peeling, bubbles, entrapment, cracking, wrinkling, variegated color, flow marks, exposed iron, etc. 9.2.31
The paint spraying procedure should be carried out in accordance with the product standards or instructions of the relevant paint. 9.2-4
9.2.5 It is strictly forbidden to spray paint outdoors on rainy days, snowy days and weather with a wind of level 6 or above. The inner surfaces and parts that are not easy to spray after assembly should be sprayed before assembly, but the paint within 50mm on both sides of the weld should be sprayed after welding 9.2.6
.
10 Factory inspection, marking, packaging and transportation ZB E97 001--90
10.1 After the heating furnace is assembled, the following work should be carried out and records should be made during the product factory inspection: a. Check whether the heating furnace meets the requirements of the drawings; b. Comprehensively check the installation quality of the heating furnace; c. Carry out water pressure test. And conduct a reference check on each connection part! d. Inspect all safety accessories.
10.2 After the heating furnace is installed, it should be inspected and accepted in accordance with the provisions of Article 2.3.5 of SYJ31. 10.3 When the tubular heating furnace leaves the factory, it should be accompanied by factory documents, including: a. General drawing of heating protection and main transformer components: b. Calculation of compression strength;
c, quality certificate (including factory certificate, metal material certificate, welding quality certificate and water pressure test certificate); d, installation and operating instructions
10.4 Tubular heating furnaces must be equipped with a chrome plate made of corrosion-resistant metal materials in an obvious position. The following contents shall be marked on the nameplate:
b, manufacturer name and manufacturing license number!
c, product number,
d. Rated heat load, kW:
e. Heating medium:
f. Working pressure, MPa or Pal
9. Working temperature, "C,
h. Thermal efficiency, %wwW.bzxz.Net
, total cost, tt
i. Equipment dimensions, mm#
k. Date of manufacture,
1. Inspection unit and inspection mark.
10.5 The packaging and transportation of tubular heating furnaces shall be carried out in accordance with the relevant provisions of JB2536. Instructions:
This standard was proposed by the Planning and Design Institute of China National Petroleum Corporation and was drafted by the Machinery Manufacturing Plant of the Pipeline Bureau of China National Petroleum Corporation. The main drafters of this standard are Ma Changmao, Jiang Li and Liu Fuyuan.5 During the construction of the furnace village, the size and position of the pipe and arm on the drawing should be followed. First, the cotton board and refractory fiber felt should be opened, and then installed. After installation, all the gaps should be filled with refractory fiber felt, and then the compression piece should be fixed with a square nut. 7.1.6 After the furnace tree is installed, the insulation nail part must be covered with a 10mlm thick refractory fiber block with a high overflow adhesive. 7.1.7 The requirements for the installation quality of the furnace lining are: the surface is flat, and there must be no cracks, missing corners, fluffing and other defects, and there must be no interlayer between the felts.
7.1.B After the installation of the furnace lining: It is strictly forbidden to collide with hard objects and rain erosion. 7.2 Structure
Refer to SHI1044.
T.3 Casting structure
Refer to SHI1045.
8 Burner
The manufacture or selection of the burner shall comply with the provisions of SHJ1040. 9 Painting
9.1 General provisions
9.1.1 Parts that need to be painted must be inspected and painted. 9.1.2 Before spraying paint, the metal surface must be kept dry. Oil, rust, welding spatter and other debris that affect the quality of paint must be cleaned. And the metal itself.
9.1.3 The furnace body pipes, flanges, flues and smoke windows are all painted with two coats of anti-rust paint. 9.1.4 The color and type of paint shall be subject to the requirements of the drawings. 9.2 Paint operation method and paint quality
The paint of the tubular furnace is sprayed or brushed. When brushing, the direction of the paint must be horizontal and vertical. 9.2.1
During the painting process, the melted hair and other debris attached to the paint surface should be cleaned and dried in time. 9.2.2
The thickness of the sprayed paint should be uniform, and there should be no defects such as peeling, bubbles, entrapment, cracking, wrinkling, variegated color, flow marks, exposed iron, etc. 9.2.31
The paint spraying procedure should be carried out in accordance with the product standards or instructions of the relevant paint. 9.2-4
9.2.5 It is strictly forbidden to spray paint outdoors on rainy days, snowy days and weather with a wind of level 6 or above. The inner surfaces and parts that are not easy to spray after assembly should be sprayed before assembly, but the paint within 50mm on both sides of the weld should be sprayed after welding 9.2.6
.
10 Factory inspection, marking, packaging and transportation ZB E97 001--90
10.1 After the heating furnace is assembled, the following work should be carried out and records should be made during the product factory inspection: a. Check whether the heating furnace meets the requirements of the drawings; b. Comprehensively check the installation quality of the heating furnace; c. Carry out water pressure test. And conduct a reference check on each connection part! d. Inspect all safety accessories.
10.2 After the heating furnace is installed, it should be inspected and accepted in accordance with the provisions of Article 2.3.5 of SYJ31. 10.3 When the tubular heating furnace leaves the factory, it should be accompanied by factory documents, including: a. General drawing of heating protection and main transformer components: b. Calculation of compression strength;
c, quality certificate (including factory certificate, metal material certificate, welding quality certificate and water pressure test certificate); d, installation and operating instructions
10.4 Tubular heating furnaces must be equipped with a chrome plate made of corrosion-resistant metal materials in an obvious position. The following contents shall be marked on the nameplate:
b, manufacturer name and manufacturing license number!
c, product number,
d. Rated heat load, kW:
e. Heating medium:
f. Working pressure, MPa or Pal
9. Working temperature, "C,
h. Thermal efficiency, %
, total cost, tt
i. Equipment dimensions, mm#
k. Date of manufacture,
1. Inspection unit and inspection mark.
10.5 The packaging and transportation of tubular heating furnaces shall be carried out in accordance with the relevant provisions of JB2536. Instructions:
This standard was proposed by the Planning and Design Institute of China National Petroleum Corporation and was drafted by the Machinery Manufacturing Plant of the Pipeline Bureau of China National Petroleum Corporation. The main drafters of this standard are Ma Changmao, Jiang Li and Liu Fuyuan.5 During the construction of the furnace village, the size and position of the pipe and arm on the drawing should be followed. First, the cotton board and refractory fiber felt should be opened, and then installed. After installation, all the gaps should be filled with refractory fiber felt, and then the compression piece should be fixed with a square nut. 7.1.6 After the furnace tree is installed, the insulation nail part must be covered with a 10mlm thick refractory fiber block with a high overflow adhesive. 7.1.7 The requirements for the installation quality of the furnace lining are: the surface is flat, and there must be no cracks, missing corners, fluffing and other defects, and there must be no interlayer between the felts.
7.1.B After the installation of the furnace lining: It is strictly forbidden to collide with hard objects and rain erosion. 7.2 Structure
Refer to SHI1044.
T.3 Casting structure
Refer to SHI1045.
8 Burner
The manufacture or selection of the burner shall comply with the provisions of SHJ1040. 9 Painting
9.1 General provisions
9.1.1 Parts that need to be painted must be inspected and painted. 9.1.2 Before spraying paint, the metal surface must be kept dry. Oil, rust, welding spatter and other debris that affect the quality of paint must be cleaned. And the metal itself.
9.1.3 The furnace body pipes, flanges, flues and smoke windows are all painted with two coats of anti-rust paint. 9.1.4 The color and type of paint shall be subject to the requirements of the drawings. 9.2 Paint operation method and paint quality
The paint of the tubular furnace is sprayed or brushed. When brushing, the direction of the paint must be horizontal and vertical. 9.2.1
During the painting process, the melted hair and other debris attached to the paint surface should be cleaned and dried in time. 9.2.2
The thickness of the sprayed paint should be uniform, and there should be no defects such as peeling, bubbles, entrapment, cracking, wrinkling, variegated color, flow marks, exposed iron, etc. 9.2.31
The paint spraying procedure should be carried out in accordance with the product standards or instructions of the relevant paint. 9.2-4
9.2.5 It is strictly forbidden to spray paint outdoors on rainy days, snowy days and weather with a wind of level 6 or above. The inner surfaces and parts that are not easy to spray after assembly should be sprayed before assembly, but the paint within 50mm on both sides of the weld should be sprayed after welding 9.2.6
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10 Factory inspection, marking, packaging and transportation ZB E97 001--90
10.1 After the heating furnace is assembled, the following work should be carried out and records should be made during the product factory inspection: a. Check whether the heating furnace meets the requirements of the drawings; b. Comprehensively check the installation quality of the heating furnace; c. Carry out water pressure test. And conduct a reference check on each connection part! d. Inspect all safety accessories.
10.2 After the heating furnace is installed, it should be inspected and accepted in accordance with the provisions of Article 2.3.5 of SYJ31. 10.3 When the tubular heating furnace leaves the factory, it should be accompanied by factory documents, including: a. General drawing of heating protection and main transformer components: b. Calculation of compression strength;
c, quality certificate (including factory certificate, metal material certificate, welding quality certificate and water pressure test certificate); d, installation and operating instructions
10.4 Tubular heating furnaces must be equipped with a chrome plate made of corrosion-resistant metal materials in an obvious position. The following contents shall be marked on the nameplate:
b, manufacturer name and manufacturing license number!
c, product number,
d. Rated heat load, kW:
e. Heating medium:
f. Working pressure, MPa or Pal
9. Working temperature, "C,
h. Thermal efficiency, %
, total cost, tt
i. Equipment dimensions, mm#
k. Date of manufacture,
1. Inspection unit and inspection mark.
10.5 The packaging and transportation of tubular heating furnaces shall be carried out in accordance with the relevant provisions of JB2536. Instructions:
This standard was proposed by the Planning and Design Institute of China National Petroleum Corporation and was drafted by the Machinery Manufacturing Plant of the Pipeline Bureau of China National Petroleum Corporation. The main drafters of this standard are Ma Changmao, Jiang Li and Liu Fuyuan.
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