A pressure-containing equipment heat treatment system and method of use

Abstract

The application discloses a kind of pressure-bearing equipment heat treatment system and use method, the system includes two symmetrical fixed mechanisms left and right, heat treatment component, auxiliary heat installation component and heat preservation layer, the fixed mechanism is symmetrically provided with central shaft between connection, central shaft axial symmetry is provided with a pair of heat treatment mechanism arranged at weld.The beneficial effects of the present application are: the superposition installation of electric heating piece I and electric heating piece II is carried out on the thick plate side of weld by the heat treatment component, the heat treatment temperature of the local weld is improved, and the installation area of auxiliary electric heating piece is formed outside electric heating piece II at the same time of the superposition installation of electric heating piece I and electric heating piece II by auxiliary heat installation component, the weld temperature difference in the range is reduced, and the heat treatment efficiency of pressure-bearing equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of heat treatment technology for pressure equipment, and specifically to a heat treatment system and method for using pressure equipment. Background Technology

[0002] Pressure vessels are key equipment in the petrochemical, nuclear power, and new energy industries. Heavy-duty hydrogenation reactors, oversized towers, and large heat exchangers are core equipment in the petrochemical industry, while pressure vessels and steel containment vessels are key equipment for energy development. Currently, large steel containment vessels have diameters exceeding 40 meters and heights exceeding 70 meters. Due to their large diameters and thick walls, welding generates significant residual stress, which easily leads to stress corrosion cracking. Moreover, it is impossible to eliminate residual stress through overall heat treatment; only local heat treatment can be used. Currently, local heat treatment methods use electric heating, with electric heating plates laid and fixed on the weld. However, large steel containment vessels have joints of varying thicknesses at the weld joints, requiring auxiliary heating installation on the thicker plate side. Existing heat treatment methods, which add double heating and auxiliary heating installation to ordinary heat treatment, have poor technical means or take a long time to implement, resulting in low heat treatment efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a heat treatment system and method for pressure equipment, which addresses the shortcomings of the prior art mentioned in the background section. This system uses a heat treatment assembly to stack electric heating elements I and II on the thick plate side of the weld, thereby increasing the local heat treatment temperature of the weld. Furthermore, while the electric heating elements I and II are stacked, the auxiliary heating assembly forms an installation area for auxiliary electric heating elements outside the electric heating element II, reducing the temperature difference of the weld within the area and improving the heat treatment efficiency of the pressure equipment.

[0004] This invention discloses a heat treatment system and method for use of pressure equipment, including a hardware module. The hardware module includes two symmetrically arranged fixing mechanisms, a heat treatment component, an auxiliary heat installation component, and an insulation layer. A central shaft is connected between the fixing mechanisms. A pair of heat treatment mechanisms arranged at the weld are symmetrically arranged along the central shaft. An insulation layer extending outward is attached to the heat treatment mechanism.

[0005] The heat treatment mechanism includes several heat treatment components and an auxiliary heat installation component installed on the outside of the heat treatment components. The auxiliary heat installation component includes a support body, a fixed arm, a support arm, and a telescopic arm, which are telescopic structures.

[0006] The support body is provided with several sliding grooves I. A slider is engaged in the sliding groove I and slides up and down along it. A pair of springs I are provided on the slider to support the slider to the lower side. A support opening is provided on the lower side of the sliding groove I. Several fixed arms are provided in the support opening. A support arm is provided on the lower side of the fixed arm. Several anti-slip protrusions are provided on the left and right side walls of the support arm. The upper part of the fixed arm and the upper part of the support arm are connected by a pair of left and right connecting rods I. The bottom of the fixed arm and the middle part of the support arm are connected by a connecting rod II. The support arm has a groove in its lateral position for the connecting rods I and II to pass through. The connecting rods I and II are the same length. A connecting shaft is provided between the connecting rods I.

[0007] A telescopic arm is provided between the slider and the connecting shaft, and the telescopic arm and the slider are hinged.

[0008] Preferably, the telescopic arm includes a main arm and a secondary arm sleeved inside the main arm, and the telescopic arm is provided with an adjustment component for controlling the extension and retraction of the secondary arm.

[0009] Preferably, the fixing mechanism includes a plurality of engaging blocks I and a locking shaft. The engaging blocks I are axially symmetrical arc-shaped surfaces, and the arc-shaped surfaces are provided with locking grooves. A locking shaft is provided between adjacent engaging blocks I. The outer surface of the locking shaft has an annular rib that mates with the locking groove, so that the engaging blocks I can slide along the outer periphery of the locking shaft. The engaging blocks I near the central shaft are provided with arc-shaped engaging grooves for engaging the two ends of the pressure-bearing equipment. The two pairs of engaging blocks I located on both sides of the central shaft are provided with stepped locking slots for engaging the two ends of the support body.

[0010] Preferably, the heat treatment assembly includes an L-shaped mounting bracket I, a mounting bracket II, and an electric heating element II. A pair of mounting brackets II are arranged along the extension direction on the right side of the mounting bracket I, and the length of the mounting bracket I is twice the length of the mounting bracket II. An electric heating element II is mounted on the mounting bracket II. An open ring buckle fitted on the central shaft is provided at the front end of the mounting bracket II. A sliding groove II penetrating the top surface is provided on the rear side wall of the mounting bracket II.

[0011] A pair of electric heating elements I are installed on the mounting frame I, and a support buckle is provided between the electric heating elements I. A locking block II is provided on the right end of the mounting frame I, which is engaged in the sliding groove II. The left end of the mounting frame I and the right end of the locking block II are arc-shaped ends. A sliding groove III that penetrates the bottom surface is provided on the front side wall of the mounting frame I. The right end of the sliding groove III is inclined, and the highest point of the inclination is the same as the highest point of the rear side wall of the sliding groove II. The mounting frame I slides to the upper right side, and the sliding groove III slides and engages with the upper end of the mounting frame II located on the rear side of the sliding groove II. At the same time, the electric heating elements I on the mounting frame I are superimposed on the electric heating elements II on the mounting frame II.

[0012] The width of the electric heating element I on the mounting bracket I is smaller than the width of the electric heating element II on the mounting bracket II.

[0013] Preferably, it also includes a software module, which is a PLC control system, and the software module controls the hardware module to complete the corresponding actions.

[0014] Preferably, the adjustment assembly includes two cylindrical brackets symmetrically fixed to the lower end of the main arm. A support shaft is provided through the cylindrical bracket. A pair of through slots are provided on the left and right sides of the support shaft near the auxiliary arm. The other end of the support shaft is a round tip. A spring II is connected between the support shafts to support the support shafts to the outside. Adjacent adjustment assemblies located on the same vertical or horizontal plane have their support shafts in contact with each other in a state of compression with the side of the spring II they are connected to.

[0015] Preferably, the upper part of the auxiliary arm is provided with a sliding groove IV that mates with the through groove of the support shaft, and the upper and lower ends of the sliding groove IV are circular ends that mate with the through groove of the support shaft.

[0016] The beneficial effects of this invention are:

[0017] 1. By using the arc-shaped ends of the left end of the mounting bracket I and the right end of the locking block II, the mounting bracket I can press the slider against the contacting slider with the arc-shaped surface of the arc end during the process of sliding left and right again after pressing the slider upward.

[0018] 2. When the slider slides upward along the slide groove I, the support arm is pulled from the lower side of the fixed arm to the front side of the fixed arm, which facilitates the installation of the auxiliary electric heating element between the support arms. At the same time, the original support arm position located below the fixed arm is exposed, which facilitates air flow on both sides of the support opening of the support body, so that the temperature difference between the electric heating element I, the electric heating element II and the auxiliary electric heating element is within a small range.

[0019] 3. By using adjacent adjusting components located on the same vertical or horizontal plane, the support shafts that are in contact with each other are compressed on the side of the spring II connected to them, so that the through groove of the support shaft is engaged in the slide groove IV, and the slide groove IV on the side of the support shafts that are in contact with each other has the condition to slide. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the heat treatment mechanism of the present invention.

[0022] Figure 3 This is an enlarged structural schematic diagram of the heat treatment mechanism of the present invention.

[0023] Figure 4This is a schematic diagram of the heat treatment component structure of the present invention.

[0024] Figure 5 This is a cross-sectional view of the mounting bracket I of the present invention.

[0025] Figure 6 This is a schematic cross-sectional view of the support structure of the present invention.

[0026] Figure 7 This is a cross-sectional enlarged structural schematic diagram of the support body of the present invention.

[0027] Figure 8 This is a schematic diagram of the auxiliary heating installation component of the present invention.

[0028] Figure 9 This is a schematic diagram of the exploded structure of the telescopic arm of the present invention.

[0029] Figure 10 This is an exploded magnified schematic diagram of the telescopic arm structure of the present invention.

[0030] Figure 11 This is a schematic diagram of the support structure of the present invention.

[0031] Legend: 1. Fixing mechanism; 11. Central shaft; 12. Engaging block I; 13. Engaging shaft; 14. Engaging groove; 15. Bayonet; 2. Heat treatment mechanism; 21. Heat treatment assembly; 211. Mounting bracket I; 2111. Electric heating element I; 2112. Support buckle; 2113. Engaging block II; 2114. Slide groove III; 212. Mounting bracket II; 2121. Electric heating element II; 2122. Opening ring buckle; 2123. Slide groove II; 22. Auxiliary heating mounting assembly; 221. Support body. 2211, Slide I, 222, Slider, 2221, Spring I, 223, Support Port, 224, Fixed Arm, 2241, Link I, 2242, Link II, 2243, Connecting Shaft, 225, Support Arm, 2251, Anti-slip Protrusion, 226, Telescopic Arm, 2261, Main Arm, 2262, Secondary Arm, 22621, Slide IV, 227, Adjustment Component, 2271, Bracket, 2272, Support Shaft, 2273, Through Slot, 2274, Spring II, 3, Insulation Layer. Detailed Implementation

[0032] The following description, in conjunction with the accompanying drawings, provides a detailed account of specific embodiments of the present invention.

[0033] A heat treatment system for pressure equipment includes a hardware module. The hardware module includes two symmetrically arranged fixing mechanisms 1, a heat treatment component 21, an auxiliary heat installation component 22, and an insulation layer 3. A central shaft 11 is connected between the fixing mechanisms 1. A pair of heat treatment mechanisms 2 arranged at the weld are symmetrically arranged along the central shaft 11. An insulation layer 3 extending outward is attached to the heat treatment mechanism 2.

[0034] The heat treatment mechanism 2 includes several heat treatment components 21 and an auxiliary heat installation component 22 installed on the outside of the heat treatment components 21. The auxiliary heat installation component 22 includes a support body 221 with a telescopic structure, a fixed arm 224, a support arm 225 and a telescopic arm 226.

[0035] The support body 221 is provided with several sliding grooves I 2211. A slider 222, which slides up and down along the grooves I 2211, is engaged within each groove. A pair of springs I 2221 are provided on each slider 222 to support it downwards. The front end of the slider 222 extends to the upper side of the mounting bracket I 211 and mounting bracket II 212. After the slider 222 slides upwards along the sliding grooves I 2211, the springs I 2221 provide elastic support for the slider 222 downwards. A support opening 223 is provided on the lower side of 2211. A fixed arm 224, the same number as the slider 222, is provided inside the support opening 223. A support arm 225 is provided below the fixed arm 224. Several anti-slip protrusions 2251 are provided on the left and right side walls of the support arm 225. The auxiliary electric heating element is fixed between the support arms 225 on the same vertical plane by the anti-slip protrusions 2251. The upper parts of the fixed arm 224 and the upper parts of the support arm 225 are connected by a pair of left and right connecting rods I 2241. The bottom of the fixed arm 224 and the middle of the support arm 225 are connected by a connecting rod II 2242. The support arm 225 has a groove in its lateral position for the connecting rods I 2241 and II 2242 to pass through. The connecting rods I 2241 and II 2242 are of the same length. A triangular notch is formed on the upper end of the support arm 225 away from the connecting rod I 2241, facilitating the passage of the support arm 225 through the connecting rod I 2241. 2241 and connecting rod II 2242 are pulled diagonally upward to the front of the fixed arm 224, which facilitates the installation of the auxiliary electric heating element between the support arms 225. At the same time, the original position of the support arm 225 located below the fixed arm 224 is exposed, which facilitates the air flow on both sides of the support port 223 of the support body 221, so that the temperature difference between the electric heating element I 2111, the electric heating element II 2121 and the auxiliary electric heating element is within a small range. A connecting shaft 2243 is provided between the connecting rods I 2241.

[0036] A telescopic arm 226 is provided between the slider 222 and the connecting shaft 2243, and the telescopic arm 226 and the slider 222 are hinged. When the slider 222 slides upward along the slide groove I 2211, the telescopic arm 226 slides upward to pull the connecting rod I 2241. The lower end of the connecting rod I 2241 moves to the upper right, so that the support arm 225 moves from the lower side of the fixed arm 224 to the front side of the fixed arm 224. When there are two support arms 225 on the same vertical plane in front of the fixed arm 224, the auxiliary electric heating element can be installed between the support arms 225.

[0037] The telescopic boom 226 includes a main boom 2261 and a secondary boom 2262 sleeved inside the main boom 2261 and moving up and down along it. The telescopic boom 226 is provided with an adjustment component 227 for controlling the extension and retraction of the secondary boom 2262.

[0038] The adjustment assembly 227 includes two cylindrical brackets 2271 symmetrically fixed to the lower end of the main arm 2261. A support shaft 2272 is provided through the cylindrical bracket 2271. The support shaft 2272 has a pair of vertical through slots 2273 on its left and right sides near the end of the auxiliary arm 2262. The other end of the support shaft 2272 is a round tip. A spring II 2274 is connected between the support shafts 2272 to support the support shafts 2272 outward. Adjacent adjustment assemblies 227 on the same vertical or horizontal plane have their support shafts 2272 in contact with each other in a compressed state towards the spring II 2274 connected to them, so that the through slots 2273 of the support shafts 2272 are engaged in the slide groove IV22621, so that the slide groove IV22621 on the side of the auxiliary arm 2262 in contact with the support shafts 2272 has the condition to slide.

[0039] The upper part of the auxiliary arm 2262 is provided with a sliding groove IV22621 that mates with the through groove 2273 of the support shaft 2272. When both support shafts 2272 are pressed towards the spring II 2274, the through groove 2273 of the support shaft 2272 is engaged in the sliding groove IV22621, causing the auxiliary arm 2262 to move up and down along the main arm 2261. The upper and lower ends of the sliding groove IV22621 are circular ends that mate with the support shaft 2272, and the support shaft 2272 is located in the circular end of the lower end of the sliding groove IV22621.

[0040] The fixing mechanism 1 includes several locking blocks I 12 and locking shafts 13. The locking blocks I 12 are axially symmetrical arc-shaped surfaces with locking grooves. Locking shafts 13 are provided between adjacent locking blocks I 12. The outer surface of the locking shafts 13 has annular ribs that mate with the locking grooves, allowing the locking blocks I 12 to slide along the outer circumference of the locking shafts 13. This makes the fixing mechanism 1 bend in the same direction as the bending arc of the pressure-bearing equipment. The locking blocks I 12 are provided with arc-shaped locking grooves 14 for locking the two ends of the pressure-bearing equipment on the side near the central shaft 11. The fixing mechanism 1 is locked and fixed to the two ends of the pressure-bearing equipment. The two pairs of locking blocks I 12 on both sides of the central shaft are provided with stepped locking slots 15 for locking the two ends of the support body 221, which are used to lock and fix the support body 221 with different degrees of extension and contraction.

[0041] The heat treatment assembly 21 includes an L-shaped mounting bracket I 211, a mounting bracket II 212, and an electric heating element II 2121. A pair of mounting brackets II 212 are arranged along the extension direction on the right side of the mounting bracket I 211, and the length of the mounting bracket I 211 is twice the length of the mounting bracket II 212. An electric heating element II 2121 is mounted on the mounting bracket II 212. An open ring 2122 is provided at the front end of the mounting bracket II 212 and is sleeved on the central shaft 11. The mounting bracket II 212 is slidably sleeved on the central shaft 11 through the opening of the open ring 2122, so that the number of heat treatment assemblies 21 can be flexibly adjusted on the central shaft 11. A sliding groove II 2123 penetrating the top surface is provided on the rear side wall of the mounting bracket II 212.

[0042] A pair of electric heating elements I 2111 are mounted on the mounting bracket I 2111, and a support buckle 2112 is provided between the electric heating elements I 2111. A locking block II 2113 is provided on the right end of the mounting bracket I 2111, which engages with the slide groove II 2123, connecting the mounting bracket I 2111 to one of the mounting brackets II 212 on the left side. The left end of the mounting bracket I 211 and the right end of the locking block II 2113 are arc-shaped ends. This allows the slide groove 222 of the mounting bracket I 211 to press upwards against the contacting slide groove 222 during the subsequent left and right sliding process after the mounting bracket I 211 has pressed upwards. A slide groove III 2114 penetrating the bottom surface is provided on the front side wall of the mounting bracket I 211. The right end of the slide groove III 2114 is inclined, and the highest point of the inclination is the same as the highest point of the rear side wall of the slide groove II 2123. 211 slides to the upper right, and mounting bracket I 211 presses upward to the slider 222 it contacts. Engaging block II 2113 disengages from slide groove II 2123, and slide groove III 2114 slides and engages with the upper end of mounting bracket II 212 located behind slide groove II 2123, until mounting bracket I 211 is above the two mounting brackets II 212. At this time, the electric heating element I 2111 on mounting bracket I 211 is superimposed on the electric heating element II 2121 on mounting bracket II 212.

[0043] The width of the electric heating element I 2111 on the mounting bracket I 211 is smaller than the width of the electric heating element II 2121 on the mounting bracket II 212, so that the thermocouple can be installed at a staggered position between the electric heating element I 2111 and the electric heating element II 2121.

[0044] It also includes a software module, which is a PLC control system, that controls the hardware module to perform corresponding actions. Of course, the software module can also be a computer system.

[0045] The system works as follows:

[0046] S1: The central shaft is arranged axially with the welding direction of the weld. The fixing mechanism is fixed to both ends of the pressure equipment through the locking groove. Several sets of heat treatment components are installed in an array on both sides of the central shaft through open ring buckles. The auxiliary heating installation components are set on the outside of the heat treatment components. The support body presses the heat treatment components toward the weld, forming electric heating plate I and electric heating plate II in close contact with the weld. The two ends of the support body extend into the locking groove to maintain the current support state.

[0047] S2: The mounting bracket I of each heat treatment component is engaged and slid above a pair of mounting brackets II via the slide groove III, so that the electric heating element I and the electric heating element II are superimposed to increase the heat treatment temperature within the range and improve the heat treatment strength of the weld thick plate side.

[0048] S3: During the sliding process of mounting bracket I, the slider it contacts is pressed upward along its arc surface. Through the telescopic arm and connecting rod I, several adjacent support arms are pulled to the front of the fixed arm. The adjacent support shafts of several support arms between the leftmost and rightmost support arms are pressed towards the connected spring II. The auxiliary arm pulls the connecting rod I downward by the gravity of the support arm, so that the support arm is reset. The support shafts of the leftmost and rightmost support arms are only pressed on one side. Then the support shaft on the opposite side is locked in the circular end of the lower end of the slide groove IV, so that the auxiliary arm does not have the condition to slide downward.

[0049] S4: Install auxiliary electric heating elements between the leftmost and rightmost support arms. At the same time, allow air circulation between the auxiliary electric heating elements and electric heating elements I and II through the original support arm position on the lower side of the fixed arm to reduce the temperature difference. Lay an insulation layer extending outward on the heat treatment mechanism.

[0050] S5: The heating temperatures of electric heating element I and electric heating element II are the same, the temperature of the auxiliary electric heating element is lower than the heating temperatures of electric heating element I and electric heating element II, and the temperature difference between the auxiliary electric heating element and the electric heating element I and electric heating element II under operating conditions is <30%.

[0051] Preferably, the pressure equipment heat treatment system of the present invention can be used in accordance with the requirements of the group standard T / CSTM 00546-2021 "Specification for Local Post-Weld Heat Treatment of Pressure Equipment", the industry standard NB / T 20450.4-2017 "Another Specification for Welding of Mechanical Equipment in Nuclear Island of Pressurized Water Reactor Nuclear Power Plant Part 4: Product Welding and Heat Treatment", the industry standard NB / T 25059-2016 "Technical Specification for Welding Heat Treatment of Conventional Island of Nuclear Power Plant", the national standard GB / T 30583-2014 "Specification for Post-Weld Heat Treatment of Pressure Equipment", the national standard GB / T 37558-2019 "Post-Forging Heat Treatment of Large Forged Steel Parts", and the national standard GB / T 39192-2020 "Heat Treatment of High Temperature Alloy Parts".

[0052] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions are all considered to be within the protection scope of the present invention.

Claims

1. A heat treatment system for pressure equipment, comprising a hardware module, the hardware module comprising two symmetrically arranged fixing mechanisms (1), a heat treatment component (21), an auxiliary heat installation component (22), and an insulation layer (3), wherein a central shaft (11) is connected between the fixing mechanisms (1), and a pair of heat treatment mechanisms (2) arranged at the weld are symmetrically arranged on the central shaft (11), and an insulation layer (3) extending outward is attached to the heat treatment mechanism (2); The heat treatment mechanism (2) includes a plurality of heat treatment components (21) and an auxiliary heat installation component (22) installed on the outside of the heat treatment components (21), characterized in that, The auxiliary heating mounting assembly (22) includes a support body (221) that is a telescopic structure, a fixed arm (224), a support arm (225) and a telescopic arm (226); The support body (221) is provided with a plurality of sliding grooves I (2211), and a slider (222) is engaged in the sliding groove I (2211) and slides up and down along it. A pair of springs I (2221) are provided on the slider (222) to support the slider (222) to the lower side. A support opening (223) is provided on the lower side of the sliding groove I (2211), and a plurality of fixed arms (224) are provided in the support opening (223). A support arm (225) is provided on the lower side of the fixed arm (224), and the left and right side walls of the support arm (225) are provided with There are several anti-slip protrusions (2251). The upper part of the fixed arm (224) and the upper part of the support arm (225) are connected by a pair of left and right connecting rods I (2241). The bottom of the fixed arm (224) and the middle part of the support arm (225) are connected by a connecting rod II (2242). The support arm (225) has a groove in its lateral position for the connecting rods I (2241) and II (2242) to pass through. The connecting rods I (2241) and II (2242) are the same length. A connecting shaft (2243) is provided between the connecting rods I (2241). A telescopic arm (226) is provided between the slider (222) and the connecting shaft (2243), and the telescopic arm (226) and the slider (222) are hinged. The telescopic arm (226) includes a main arm (2261) and a secondary arm (2262) sleeved inside the main arm (2261). The telescopic arm (226) is provided with an adjustment component (227) for controlling the extension and retraction of the secondary arm (2262). The heat treatment assembly (21) includes an L-shaped mounting bracket I (211), a mounting bracket II (212), and an electric heating element II (2121). A pair of mounting brackets II (212) arranged along the extension direction are provided on the right side of the mounting bracket I (211), and the length of the mounting bracket I (211) is twice the length of the mounting bracket II (212). An electric heating element II (2121) is installed on the mounting bracket II (212). An open ring buckle (2122) sleeved on the central shaft (11) is provided at the front end of the mounting bracket II (212). A sliding groove II (2123) penetrating the top surface is provided on the rear side wall of the mounting bracket II (212). A pair of electric heating elements I (2111) are mounted on the mounting bracket I (2111), and a support buckle (2112) is provided between the electric heating elements I (2111). A locking block II (2113) is provided on the right end of the mounting bracket I (2111) and engages in the sliding groove II (2123). The left end of the mounting bracket I (2111) and the right end of the locking block II (2113) are arc-shaped ends. A sliding groove III (2123) penetrating the bottom surface is provided on the front side wall of the mounting bracket I (2111). 14) The right end of the slide groove III (2114) is inclined, and the highest point of the inclination is the same as the highest point of the rear side wall of the slide groove II (2123). The mounting bracket I (211) slides to the upper right side, and the slide groove III (2114) slides and engages with the upper end of the mounting bracket II (212) located behind the slide groove II (2123). At the same time, the electric heating element I (2111) on the mounting bracket I (211) is superimposed on the electric heating element II (2121) on the mounting bracket II (212). The width of the electric heating element I (2111) on the mounting bracket I (211) is smaller than the width of the electric heating element II (2121) on the mounting bracket II (212).

2. The heat treatment system for pressure equipment according to claim 1, characterized in that, The fixing mechanism (1) includes several locking blocks I (12) and locking shafts (13). The locking blocks I (12) are axially symmetrical arc-shaped surfaces and have locking grooves. Locking shafts (13) are provided between adjacent locking blocks I (12). The outer surface of the locking shaft (13) has an annular rib that mates with the locking groove, so that the locking blocks I (12) can slide along the outer periphery of the locking shaft (13). The locking blocks I (12) near the central shaft (11) are provided with arc-shaped locking grooves (14) for locking the two ends of the pressure-bearing equipment. The two pairs of locking blocks I (12) on both sides of the central shaft are provided with stepped locking slots (15) for locking the two ends of the support body (221).

3. The heat treatment system for pressure equipment according to claim 2, characterized in that, It also includes a software module, which is a PLC control system, and the software module controls the hardware module to complete the corresponding actions.

4. The heat treatment system for pressure equipment according to claim 2, characterized in that, The adjustment assembly (227) includes two cylindrical brackets (2271) symmetrically fixed to the lower end of the main arm (2261). A support shaft (2272) is provided through the cylindrical bracket (2271). A pair of through slots (2273) are provided on the left and right sides of the end of the support shaft (2272) near the auxiliary arm (2262). The other end of the support shaft (2272) is a round tip. A spring II (2274) is connected between the support shafts (2272) to support the support shafts (2272) outward. Adjacent adjustment assemblies (2277) located on the same vertical or horizontal plane have their support shafts (2272) in contact with each other in a compressed state towards the spring II (2274) connected to them.

5. A heat treatment system for pressure equipment according to claim 4, characterized in that, The upper part of the auxiliary arm (2262) is provided with a sliding groove IV (22621) that mates with the through groove (2273) of the support shaft (2272). The upper and lower ends of the sliding groove IV (22621) are circular ends that mate with the support shaft (2272).

6. The method of using a heat treatment system for pressure equipment according to claim 5, characterized in that, Includes the following steps: S1: The central shaft is arranged axially with the welding direction of the weld. The fixing mechanism is fixed to both ends of the pressure equipment through the locking groove. Several sets of heat treatment components are installed in an array on both sides of the central shaft through open ring buckles. The auxiliary heating installation components are set on the outside of the heat treatment components. The support body presses the heat treatment components toward the weld, forming electric heating plate I and electric heating plate II in close contact with the weld. The two ends of the support body extend into the locking groove to maintain the current support state. S2: The mounting bracket I of each heat treatment component is engaged and slid above a pair of mounting brackets II through the slide groove III, so that the electric heating plate I and the electric heating plate II are superimposed to increase the heat treatment temperature within the range and improve the heat treatment strength of the weld thick plate side. S3: During the sliding process of mounting bracket I, the slider it contacts is pressed upward along its arc surface. Through the telescopic arm and connecting rod I, several adjacent support arms are pulled to the front of the fixed arm. The adjacent support shafts of several support arms between the leftmost and rightmost support arms are pressed towards the connected spring II. The auxiliary arm pulls the connecting rod I downward by the gravity of the support arm, so that the support arm is reset. The support shaft of the leftmost and rightmost support arms is only pressed on one side. Then the support shaft on the opposite side is locked in the circular end of the lower end of the slide groove IV, so that the auxiliary arm does not have the condition to slide downward. S4: Install auxiliary electric heating elements between the leftmost and rightmost support arms. At the same time, the auxiliary electric heating elements allow air circulation between the original support arm position on the lower side of the fixed arm and electric heating elements I and II to reduce the temperature difference. Lay an insulation layer extending outward on the heat treatment mechanism. S5: The heating temperatures of electric heating element I and electric heating element II are the same, the temperature of the auxiliary electric heating element is lower than the heating temperatures of electric heating element I and electric heating element II, and the temperature difference between the auxiliary electric heating element and the electric heating element I and electric heating element II under operating conditions is <30%.

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