A device and method for controlling the deformation of the head of an austenitic stainless steel pressure vessel.

Abstract

This invention relates to the field of stainless steel pressure vessel manufacturing technology, and particularly to a device and method for controlling the deformation of the end caps of an austenitic stainless steel pressure vessel. The device includes an end cap clamping device, an end cap supporting device, a cylinder supporting device, and a lateral adjustment device. Two end cap clamping devices and two end cap supporting devices are provided, respectively used to control the deformation at both ends of the vessel's cylinder and to support the end caps. The cylinder supporting device is mounted on and slidably engages with the lateral adjustment device to support the pressure vessel's cylinder. The end cap clamping device, cylinder supporting device, and lateral adjustment device make this device suitable for pressure vessels of different diameters, lengths, and end cap sizes. Simultaneously, the end cap clamping device allows monitoring of the stress at various locations on both ends of the end caps during the strain hardening process of the stainless steel pressure vessel, enabling timely acquisition of the deformation at different locations of the end caps during strain hardening, ensuring that the end cap deformation meets ideal requirements, and better guaranteeing product quality.

Description

Technical Field

[0001] This invention relates to the field of stainless steel pressure vessel manufacturing technology, and in particular to a device and method for controlling the deformation of the end caps of an austenitic stainless steel pressure vessel. Background Technology

[0002] The lightweight design and manufacturing of stainless steel pressure vessels and cryogenic vessels based on strain strengthening technology has been applied in engineering. It utilizes the good plasticity, toughness and low-temperature performance of austenitic stainless steel materials, and improves the yield strength of the material by sacrificing some of the material's redundant plasticity, thereby improving the load-bearing capacity of austenitic stainless steel pressure vessels. It can effectively reduce the wall thickness of the vessel, reduce the weight-to-volume ratio and improve economic efficiency.

[0003] However, in the actual strain-strengthened stainless steel pressure vessel process, it was found that the deformation of the head and the cylinder are generally different, especially for elliptical heads, where the stress at the apex and the equator is different. Therefore, it is necessary to reasonably monitor and limit the deformation of the head during the strain-strengthening process to ensure that the head deformation reaches the ideal requirements, which is of great significance to ensuring product safety.

[0004] In the prior art, such as application number CN202210262646.1 entitled "A Large Ultra-Long Cylinder Strain Strengthening Positioning and Detection Fixture and Method," the radial dimension monitoring device includes a guide rail assembly fixedly installed beside the cylinder and parallel to the cylinder's central axis, and N radial laser ranging sensors installed on the guide rail assembly at intervals to monitor changes in the cylinder's dimensions during strain strengthening. However, this device does not consider the uneven deformation of the end cap and the cylinder during the strain strengthening process and lacks a device to limit the deformation of the end cap. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to propose a head deformation control device and method for austenitic stainless steel pressure vessels, which addresses the existing problems in current strain strengthening devices for stainless steel pressure vessels. The entire device can locally compress the head area and is applicable to pressure vessels of different sizes. Based on traditional strain strengthening devices, it ensures that the head deformation meets the ideal requirements.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The head deformation control device for austenitic stainless steel pressure vessel includes a head clamping device, a head support device, a cylinder support device (3) and a lateral adjustment device (4).

[0008] Two end-cap clamping devices and two end-cap support devices are provided, which are used to control the deformation of the end caps at both ends of the container body (6) and to support the end caps, respectively.

[0009] The cylinder support device (3) is installed on the lateral adjustment device (4) and slides with it to support the cylinder (6) of the pressure vessel.

[0010] Furthermore, there are two head clamping devices, namely a first head clamping device (1-1) and a second head clamping device (1-2).

[0011] There are two head support devices, namely the first head support device (2-1) and the second head support device (2-2).

[0012] The first head clamping device (1-1) is fixedly connected to the first head support device (2-1), and the second head clamping device (1-2) is fixedly connected to the second head support device (2-2). The first head clamping device (1-1) and the second head clamping device (1-2) are symmetrically arranged at both ends of the cylinder (6) of the pressure vessel to monitor and limit the deformation of the head and ensure that the deformation of the head meets the requirements.

[0013] The first head support device (2-1) is fixed on the left end face of the transverse adjustment device (4), and the second head support device (2-2) is installed on the upper right side of the transverse adjustment device (4) and slides with it.

[0014] Furthermore, the head clamping device includes a fixing rod (101), and a circular pressure head (102) is provided at one end of the fixing rod (101).

[0015] The first connecting plate (103) is fixedly connected to the fixed rod (101), and the first connecting plate (103) and the second connecting plate (104) are arranged adjacent to each other and fixed.

[0016] The third connecting plate (105) is arranged adjacent to and fixed to the second connecting plate (104), and the surface of the third connecting plate (105) is parallel to the pressure vessel cylinder (6).

[0017] A retractable pressure head is provided on the inner side of both the second connecting plate (104) and the third connecting plate (105), and a pressure sensor (110) is provided on the retractable pressure head.

[0018] Furthermore, the head support device includes a support plate (21), with an upper crossbeam (22) and a lower crossbeam (26) respectively arranged on the upper and lower sides of the support plate (21). An upper pressure ring (23) and a lower pressure ring (24) are symmetrically arranged on the inner side of the upper crossbeam (22) and the lower crossbeam (26). The fixing rod (101) is fixed in the middle part of the support plate (21).

[0019] Furthermore, the cylindrical support device (3) includes a slider (31), with a threaded hole inside the slider (31), and a cylindrical base (32) connected to the upper part of the slider (31); a first support rod (33a) and a second support rod (33b) are symmetrically arranged on both sides of the cylindrical base (32), the first support rod (33a) and the second support rod (33b) are connected by a first slide rod (34), and the first support rod (33a) is fixed on the cylindrical base (32), and the second support rod (33b) can move left and right along the first slide rod (34); a first adjusting disc (35) is provided at the top of the first slide rod (34); two lifting platforms (36) are provided at the top of the cylindrical base (32); an arc-shaped bracket (37) is installed on the upper part of the lifting platform (36); limit blocks (38) are symmetrically arranged on the inner side of the upper part of the first support rod (33a) and the second support rod (33b); the cylindrical body (6) is fixed by the arc-shaped bracket (37) and the limit blocks (38).

[0020] Furthermore, the lateral adjustment device (4) includes a base plate (41), a groove (42) is opened in the center of the base plate (41), and the slider (31) at the bottom of the cylinder support device (3) slides in cooperation with the groove (42); the second slide rod (43) passes through the sliding base (27) and the slider (31) and is driven by a thread; the right end face of the second slide rod (43) is connected to the second adjustment disc (44).

[0021] Furthermore, the first head support device (2-1) is fixed on the left end face of the base plate (41), and the second head support device (2-2) is installed on the right side of the base plate (41) of the transverse adjustment device through the sliding base (27). The sliding base (27) and the sliding groove (42) slide together, which makes the device of the present invention applicable to pressure vessels of different lengths.

[0022] Furthermore, the first connecting plate (103) and the second connecting plate (104) are connected and fastened by a fixing block (106); the two ends of the fixing block (106) are respectively fixed to the first connecting plate (103) and the second connecting plate (104) by screws (107).

[0023] Furthermore, the retractable pressure head includes a T-shaped pressure head (109) and a telescopic rod (108), with the T-shaped pressure head (109) connected to the end of the telescopic rod (108); a pressure sensor (110) is disposed on the side of the T-shaped pressure head (109).

[0024] Furthermore, the telescopic rod (108) has three levels of telescopic parts that are nested together in sequence.

[0025] Furthermore, the number of the second connecting plate (104) can be appropriately increased according to the needs of the experimental pressure vessel; it can be increased or decreased according to the actual cylinder size to ensure the wrapping of the end cap (5).

[0026] Furthermore, the inner sides of the upper pressure ring (23) and the lower pressure ring (24) are tightly fixed to the outer side of the third connecting plate (105), and the upper pressure ring (23) and the lower pressure ring (24) are fixed together by adjusting the knob (25) to ensure that the circular pressure head (102) and the T-shaped pressure head (109) are tightly attached to the surface of the end cap (5).

[0027] This invention also provides a method for controlling the deformation of the end caps of an austenitic stainless steel pressure vessel, comprising the following steps:

[0028] Step 1: Place the cylinder (6) of the pressure vessel on the cylinder support device (3);

[0029] Step 2: Rotate the first adjusting disc (35) to drive the second support rod (33b) to move left and right along the first sliding rod (34) to increase the distance between the two limit blocks (38); at the same time, the two lifting platforms (36) set on the top of the cylinder base (32) drive the arc bracket (37) to move up and down; adjust the position and height of the pressure vessel cylinder on the cylinder support device (3);

[0030] Step 3: Rotate the second adjusting disc (44) to adjust the position of the cylinder support device (3) and the second end cap support device (2-2) to ensure that the circular pressure head (102) and the T-shaped pressure head (109) are in close contact with the surface of the end cap (5); monitor the local pressure of the end cap (5) through the pressure sensor (110) set on the side; and limit the deformation of each part of the end cap through the retractable pressure head to ensure that the deformation of the end cap meets the ideal requirements.

[0031] In the above control method, the number of head pressure clamping devices can be selected according to the actual size of the pressure vessel, and the second connecting plate (104) can be appropriately increased or decreased to make the head deformation control device of the austenitic stainless steel pressure vessel suitable for the pressure vessel.

[0032] Beneficial effects:

[0033] 1. This device uses a head clamping device to control the deformation of the pressure vessel head during strain strengthening. A T-shaped pressure head (109) is set on the top of the telescopic rod (108) and is tightly attached to the pressure vessel head. At the same time, by adjusting the number of the second connecting plate (104) and the number of the second connecting plates (104) along the circumference of the pressure vessel in the head clamping device, the device can be made suitable for strain strengthening processes of existing pressure vessels of different sizes.

[0034] 2. Since the head support device is designed with an upper pressure ring (23) and a lower pressure ring (24), the inner sides of the two are tightly fixed to the outer side of the third connecting plate (105), and the two pressure rings can be fixed by adjusting the knob (25) to ensure that the circular pressure head (102) and the T-shaped pressure head (109) are tightly attached to the surface of the head (5), which can further ensure the pressing effect in actual engineering.

[0035] 3. Because the cylinder support device (3) has two lifting platforms (36) on the top of the cylinder base (32) to drive the arc-shaped bracket (37) to move up and down, ensuring that the cylinder and the head pressing device are coaxial. At the same time, a first support rod (33a) and a second support rod (33b) are designed to move left and right along the first sliding rod (34) to adjust the distance between the two limit blocks (38) and ensure that the two sides of the cylinder are restricted and fixed. The two work together to ensure the stability of the cylinder and make the device suitable for pressure vessels of different sizes.

[0036] 4. Since the horizontal adjustment device (4) can adjust the position of the cylinder support device (3) and the head support device, the head support device is located at both ends of the head (5), and the cylinder support device (3) is located in the middle of the cylinder (6), so that it can be used for different pressure vessel sizes while ensuring the overall stability of the device. Attached Figure Description

[0037] The present invention will now be further described with reference to the accompanying drawings, which are for illustrative purposes only and are not intended to limit the scope of this application.

[0038] Figure 1 This is a schematic diagram of the working state of the device of the present invention;

[0039] Figure 2 This is a front view of the device of the present invention;

[0040] Figure 3 This is a left view of the device of the present invention;

[0041] Figure 4 This is a top view of the device of the present invention;

[0042] Figure 5 This is a partial schematic diagram of the head clamping device of the present invention;

[0043] Figure 6 This is a partial schematic diagram of the cylindrical support device of the present invention;

[0044] In the diagram: 1-1, First head clamping device; 1-2, Second head clamping device; 2-1, First head support device; 2-2, Second head support device; 3, Cylinder support device; 4, Lateral adjustment device; 5, Head; 6, Cylinder; 101, Fixing rod; 102, Circular pressure head; 103, First connecting plate; 104, Second connecting plate; 105, Third connecting plate; 106, Fixing block; 107, Screw; 108, Telescopic rod; 109, T-shaped pressure head; 1 10. Pressure sensor; 21. Support plate; 22. Upper crossbeam; 23. Upper pressure ring; 24. Lower pressure ring; 25. Adjustment knob; 26. Lower crossbeam; 27. Sliding base; 31. Slider; 32. Cylinder base; 33a. First support rod; 33b. Second support rod; 34. First slide rod; 35. First adjusting disc; 36. Lifting platform; 37. Arc-shaped bracket; 38. Limiting block; 41. Base plate; 42. Slide groove; 43. Second slide rod; 44. Second adjusting disc. Detailed Implementation

[0045] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the term "comprising" and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0047] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more (including two), unless otherwise explicitly defined. Example:

[0048] See attached document Figures 1-4 The head deformation control device for austenitic stainless steel pressure vessels includes a head clamping device, a head support device, a cylinder support device (3) and a lateral adjustment device (4).

[0049] Two end-cap clamping devices and two end-cap support devices are provided, which are used to control the deformation of the end caps at both ends of the container body (6) and to support the end caps, respectively.

[0050] There are two head clamping devices, namely the first head clamping device (1-1) and the second head clamping device (1-2).

[0051] There are two head support devices, namely the first head support device (2-1) and the second head support device (2-2).

[0052] The first head clamping device (1-1) is fixedly connected to the first head support device (2-1), and the second head clamping device (1-2) is fixedly connected to the second head support device (2-2). The first head clamping device (1-1) and the second head clamping device (1-2) are symmetrically arranged at both ends of the cylinder (6) of the pressure vessel to monitor and limit the deformation of the head and ensure that the deformation of the head meets the requirements.

[0053] The first head support device (2-1) is fixed on the left end face of the transverse adjustment device (4), and the second head support device (2-2) is installed on the upper right side of the transverse adjustment device (4) and slides with it.

[0054] The cylinder support device (3) is installed on the lateral adjustment device (4) and slides with it to support the cylinder (6) of the pressure vessel.

[0055] The lateral adjustment device (4) includes a base plate (41), a groove (42) is opened in the center of the base plate (41), and the slider (31) at the bottom of the cylinder support device (3) slides in cooperation with the groove (42); the second slide rod (43) passes through the sliding base (27) and the slider (31) and is driven by a thread; the right end face of the second slide rod (43) is connected to the second adjustment disc (44).

[0056] The first head support device (2-1) is fixed on the left end face of the base plate (41), and the second head support device (2-2) is installed on the right side of the base plate (41) of the transverse adjustment device through the sliding base (27). The sliding base (27) and the sliding groove (42) slide together, which makes the device of the present invention suitable for pressure vessels of different lengths.

[0057] Appendix Figure 5 This is a partial structural diagram of the head pressing device. The head pressing device includes a fixed rod (101), and a circular pressure head (102) is provided at one end of the fixed rod (101). A first connecting plate (103) is fixedly connected to the fixed rod (101). The first connecting plate (103) and the second connecting plate (104) are arranged adjacent to each other and fixed. A third connecting plate (105) is arranged adjacent to the second connecting plate (104) and fixed. The surface of the third connecting plate (105) is parallel to the pressure vessel cylinder (6). A retractable pressure head is provided on the inner side of both the second connecting plate (104) and the third connecting plate (105). A pressure sensor (110) is provided on the retractable pressure head.

[0058] The first connecting plate (103) and the second connecting plate (104) are connected and fastened by a fixing block (106); the two ends of the fixing block (106) are respectively fixed to the first connecting plate (103) and the second connecting plate (104) by screws (107).

[0059] The retractable pressure head includes a T-shaped pressure head (109) and a telescopic rod (108), with the T-shaped pressure head (109) connected to the end of the telescopic rod (108); a pressure sensor (110) is disposed on the side of the T-shaped pressure head (109).

[0060] The telescopic rod (108) has three levels of telescopic parts that are nested and connected in sequence.

[0061] The head support device includes a support plate (21), with an upper crossbeam (22) and a lower crossbeam (26) respectively arranged on the upper and lower sides of the support plate (21). An upper pressure ring (23) and a lower pressure ring (24) are symmetrically arranged on the inner side of the upper crossbeam (22) and the lower crossbeam (26). The fixing rod (101) is fixed in the middle part of the support plate (21).

[0062] The inner sides of the upper pressure ring (23) and the lower pressure ring (24) are tightly fixed to the outer side of the third connecting plate (105), and the upper pressure ring (23) and the lower pressure ring (24) are fixed together by adjusting the knob (25) to ensure that the circular pressure head (102) and the T-shaped pressure head (109) are tightly attached to the surface of the end cap (5).

[0063] Figure 5 This embodiment only demonstrates the structure. In actual use, the number of the second connecting plate (104) can be appropriately increased according to the needs of the experimental pressure vessel; it can be increased or decreased according to the actual cylinder size to ensure the enclosure of the end cap (5). The number of stages of the telescopic rod (108) can also be adjusted as needed.

[0064] See attached document Figure 6The cylindrical support device (3) includes a slider (31), which has a threaded hole inside. A cylindrical base (32) is connected to the upper part of the slider (31). A first support rod (33a) and a second support rod (33b) are symmetrically arranged on both sides of the cylindrical base (32). The first support rod (33a) and the second support rod (33b) are connected by a first slide rod (34). The first support rod (33a) is fixed on the cylindrical base (32), and the second support rod (33b) can move left and right along the first slide rod (34). A first adjusting disc (35) is provided at the top of the first slide rod (34). Two lifting platforms (36) are provided at the top of the cylindrical base (32). An arc-shaped bracket (37) is installed on the upper part of the lifting platform (36). Limiting blocks (38) are symmetrically arranged on the inner side of the upper part of the first support rod (33a) and the second support rod (33b). The cylindrical body (6) is fixed by the arc-shaped bracket (37) and the limiting blocks (38).

[0065] The main steps of the method for controlling the deformation of the end caps of the austenitic stainless steel pressure vessel of the present invention are as follows:

[0066] by Figure 1 Taking the strain-strengthened circular head pressure vessel as an example, before strain-strengthening the stainless steel pressure vessel, the cylinder (6) of the pressure vessel is placed on the cylinder support device (3). The height of the lifting platform (36) is adjusted so that the pressure vessel and the head clamping device (1) are coaxial. At this time, the second support rod (33b) is driven to move along the first slide rod (34) to a suitable position, ensuring that the limiting blocks (38) symmetrically arranged on the inner side of the upper part of the first support rod (33a) and the second support rod (33b) are close to the side of the cylinder (6) of the pressure vessel. Under the combined action of the two limiting blocks (38) and the lower arc-shaped bracket (37), the lateral orientation of the pressure vessel is restricted. Move; further, by using the lateral adjustment device (4), rotate the second adjustment circle (44) to drive the sliding base (27) of the second head support device (2-2) and the slider (31) of the cylinder support device (3) to move to the appropriate position. At this time, it should be ensured that the circular pressure head (102) and the T-shaped pressure head (109) in the head pressing device (1) are tightly attached to the surface of the head (5), and at the same time, the inner side of the upper pressure ring (23) and the lower pressure ring (24) are tightly fixed to the outer side of the third connecting plate (105) to ensure that the pressing heads of each part of the head are tightly attached to the head before strain strengthening; then set the head pressing device (1), according to Figure 1 The pressure vessel size can be adjusted by increasing or decreasing the number of second connecting plates (104) to cover the end cap, ensuring that the T-shaped pressure heads (109) set inside each connecting plate can also be tightly attached to the pressure vessel.

[0067] Furthermore, during the strain-strengthening process of the stainless steel pressure vessel, five identical head pressure clamping devices evenly distributed around the top of the fixed rod (101) jointly clamp the head. At the same time, the stress magnitude of each part of the head is monitored by the pressure sensor (110) set on the side of the T-shaped pressure head (109) during the experiment. The deformation of the pressure vessel head during the strain-strengthening process is limited by the T-shaped pressure head (109). Based on the traditional strain-strengthening device, the deformation of the head can be monitored and limited to ensure that the deformation of the head meets the qualification requirements.

[0068] The device of the present invention is a strain-strengthened head deformation control device that can locally compress areas with high stress on the head and is applicable to pressure vessels of different sizes. It controls the degree of deformation and whether the deformation shape of the head is qualified, ensuring that the head deformation meets the ideal requirements.

[0069] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0070] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for controlling the deformation of the end cap of an austenitic stainless steel pressure vessel, characterized in that, It includes a head pressing device, a head support device, a cylinder support device (3) and a lateral adjustment device (4). Two end-cap clamping devices and two end-cap support devices are provided, which are used to control the deformation of the end caps at both ends of the container body (6) and to support the end caps, respectively. The cylinder support device (3) is installed on the lateral adjustment device (4) and slides with it to support the cylinder (6) of the pressure vessel. The head clamping device includes a fixing rod (101), and a circular pressure head (102) is provided at one end of the fixing rod (101). The first connecting plate (103) is fixedly connected to the fixed rod (101), and the first connecting plate (103) and the second connecting plate (104) are arranged adjacent to each other and fixed. The third connecting plate (105) is arranged adjacent to and fixed to the second connecting plate (104), and the surface of the third connecting plate (105) is parallel to the pressure vessel cylinder (6). A retractable pressure head is provided on the inner side of both the second connecting plate (104) and the third connecting plate (105), and a pressure sensor (110) is provided on the retractable pressure head.

2. The head deformation control device for austenitic stainless steel pressure vessels according to claim 1, characterized in that, There are two head clamping devices, namely the first head clamping device (1-1) and the second head clamping device (1-2). There are two head support devices, namely the first head support device (2-1) and the second head support device (2-2). The first head clamping device (1-1) is fixedly connected to the first head support device (2-1), and the second head clamping device (1-2) is fixedly connected to the second head support device (2-2). The first head clamping device (1-1) and the second head clamping device (1-2) are symmetrically arranged at both ends of the cylinder (6) of the pressure vessel to monitor and limit the deformation of the head and ensure that the deformation of the head meets the requirements. The first head support device (2-1) is fixed on the left end face of the transverse adjustment device (4), and the second head support device (2-2) is installed on the upper right side of the transverse adjustment device (4) and slides with it.

3. The head deformation control device for austenitic stainless steel pressure vessels according to claim 2, characterized in that, The head support device includes a support plate (21), with an upper crossbeam (22) and a lower crossbeam (26) respectively arranged on the upper and lower sides of the support plate (21). An upper pressure ring (23) and a lower pressure ring (24) are symmetrically arranged on the inner side of the upper crossbeam (22) and the lower crossbeam (26); the fixing rod (101) is fixed in the middle part of the support plate (21); The inner sides of the upper pressure ring (23) and the lower pressure ring (24) are tightly fixed to the outer side of the third connecting plate (105), and the upper pressure ring (23) and the lower pressure ring (24) are fixed together by adjusting the knob (25).

4. The head deformation control device for austenitic stainless steel pressure vessels according to claim 2, characterized in that, The cylindrical support device (3) includes a slider (31), which has a threaded hole inside. A cylindrical base (32) is connected to the upper part of the slider (31). A first support rod (33a) and a second support rod (33b) are symmetrically arranged on both sides of the cylindrical base (32). The first support rod (33a) and the second support rod (33b) are connected by a first slide rod (34). The first support rod (33a) is fixed on the cylindrical base (32), and the second support rod (33b) can move left and right along the first slide rod (34). A first adjusting disc (35) is provided at the top of the first slide rod (34). Two lifting platforms (36) are provided at the top of the cylindrical base (32). An arc-shaped bracket (37) is installed on the upper part of the lifting platform (36). Limiting blocks (38) are symmetrically arranged on the inner side of the upper part of the first support rod (33a) and the second support rod (33b). The cylindrical body (6) is fixed by the arc-shaped bracket (37) and the limiting blocks (38).

5. The head deformation control device for austenitic stainless steel pressure vessel according to claim 4, characterized in that, The lateral adjustment device (4) includes a base plate (41), with a groove (42) in the center of the base plate (41). The slider (31) at the bottom of the cylinder support device (3) slides in conjunction with the groove (42). The second end support device (2-2) is installed on the right side of the base plate (41) of the lateral adjustment device via a sliding base (27). The second slide rod (43) passes through the sliding base (27) and the slider (31) and is driven by a thread. The right end face of the second slide rod (43) is connected to a second adjustment disc (44).

6. The head deformation control device for austenitic stainless steel pressure vessel according to claim 5, characterized in that, The first head support device (2-1) is fixed on the left end face of the base plate (41), and the sliding base (27) and the sliding groove (42) slide together, so that the head deformation control device can be used for pressure vessels of different lengths.

7. The head deformation control device for austenitic stainless steel pressure vessel according to claim 1, characterized in that, The first connecting plate (103) and the second connecting plate (104) are connected and fastened by a fixing block (106); the two ends of the fixing block (106) are respectively fixed to the first connecting plate (103) and the second connecting plate (104) by screws (107).

8. The head deformation control device for austenitic stainless steel pressure vessel according to claim 5, characterized in that, The retractable pressure head includes a T-shaped pressure head (109) and a telescopic rod (108), with the T-shaped pressure head (109) connected to the end of the telescopic rod (108); a pressure sensor (110) is disposed on the side of the T-shaped pressure head (109).

9. A control method for the head deformation control device of the austenitic stainless steel pressure vessel according to claim 8, characterized in that, Includes the following steps: Step 1: Place the cylinder (6) of the pressure vessel on the cylinder support device (3); Step 2: Rotate the first adjusting disc (35) to drive the second support rod (33b) to move left and right along the first sliding rod (34) to increase the distance between the two limit blocks (38); at the same time, the two lifting platforms (36) set on the top of the cylinder base (32) drive the arc bracket (37) to move up and down; adjust the position and height of the pressure vessel cylinder on the cylinder support device (3); Step 3: Rotate the second adjusting disc (44) to adjust the position of the cylinder support device (3) and the second end cap support device (2-2) to ensure that the circular pressure head (102) and the T-shaped pressure head (109) are in close contact with the surface of the end cap (5); monitor the local pressure of the end cap (5) through the pressure sensor (110) set on the side; and limit the deformation of each part of the end cap through the retractable pressure head to ensure that the deformation of the end cap meets the ideal requirements.

Images