1000MPa-grade isostatic pressing machine with high sealing performance
By introducing an insulation heating jacket and a sealing test area into the 1000MPa isostatic press, the problem of insufficient sealing was solved, heat recovery and sealing monitoring were realized, and the safety and energy utilization efficiency of the equipment were improved.
Patent Information
- Application Number
- CN202610030972.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-12
- Publication Date
- 2026-02-13
AI Technical Summary
The existing horizontal cold isostatic press has insufficient sealing, which leads to pressure leakage, media contamination and reduced molding quality. At the same time, repeated opening of the cover causes heat loss and increased energy consumption.
A 1000MPa-class isostatic press was designed, comprising a pressure frame, a pressure vessel, a sealing mechanism, and an insulation and heating jacket. The insulation and heating jacket collects heat when the sealing cover is opened. A sealing test area and a heat storage area are set up, and the pressure is monitored in a distributed manner within the sealing test area to ensure sealing performance and heat recovery.
It improves the sealing and safety of the equipment, reduces heat loss and energy consumption, enhances the energy utilization efficiency of the system, and achieves dual protection of sealing and safety.
Smart Images
Figure CN121515536A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of isostatic pressing machine, in particular to a 1000MPa grade isostatic pressing machine with strong sealing performance. BACKGROUND
[0002] The isostatic pressing machine is a forming equipment applying Pascal principle, relying on high-pressure liquid or gas to apply the same pressure to the material from all directions. The material loaded in the sealed and elastic mold is placed in the container filled with liquid or gas, and the medium is pressurized by the external pump, and the incompressible and uniform pressure transmission properties of the liquid or gas medium are used to make the material receive the same pressure in all directions, so as to realize the forming of high-density and high-uniformity blank.
[0003] The isostatic pressing machine mainly includes cold isostatic pressing machine, warm isostatic pressing machine and hot isostatic pressing machine, and the 1000MPa grade isostatic pressing machine generally belongs to the cold isostatic pressing machine. The cold isostatic pressing machine operates at room temperature and uses liquid (such as water, oil or ethylene glycol mixed liquid) as pressure medium. The horizontal cold isostatic pressing machine is a kind of cold isostatic pressing machine, which not only meets the requirement of 1000MPa grade in pressure grade, but also has the advantages of horizontal structure, such as reducing the requirement for the height of the workshop, facilitating operation and maintenance, etc.
[0004] The sealing performance is an important factor to ensure the normal operation of the equipment and the production of high-quality products, which may cause problems such as pressure leakage, medium pollution and decrease of forming quality. The existing horizontal cold isostatic pressing machine is only sealed by the end cover, however, the production process of the horizontal cold isostatic pressing machine is discontinuous, and the mold needs to be filled and pressed one by one, and repeated opening of the cover will cause certain heat loss, and excessive heat loss will reduce the production efficiency and increase the energy consumption. SUMMARY
[0005] The present application aims to provide a 1000MPa grade isostatic pressing machine with strong sealing performance to solve the problems in the background.
[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a 1000MPa grade isostatic pressing machine with strong sealing performance, comprising a pressure bearing frame, a pressure container and a sealing mechanism, the pressure container is installed at one end of the pressure bearing frame, and is used for placing the workpiece mold to be isostatically pressed, the other end of the pressure container is fixedly connected with an end cover, the sealing mechanism comprises a sealing cover and a heat preservation heating sleeve, the sealing cover is arranged in cooperation with the end cover, and is used for opening or closing the pressure container, and the heat preservation heating sleeve is sleeved outside the end cover, and is used for collecting the heat when the sealing cover is opened and detecting the sealing performance in the working process of the end cover.
[0007] According to the technical scheme, the heat preservation heating jacket is internally fixed with a partition frame, an annular groove is formed in the middle of the partition frame, a plurality of windows are formed in the circumference of the partition frame, a seal opening frame is movably connected to the partition frame, a corresponding number of seal opening plates are fixed to the seal opening frame in correspondence with the windows, drive blocks are connected to the inner sides of the seal opening plates, and rotating plates are rotatably arranged in the heat preservation heating jacket in correspondence with the drive blocks.
[0008] According to the technical scheme, a rotating rod is arranged in the middle of the rotating plate, one end of the rotating rod is rotatably arranged in the inner wall of the heat preservation heating jacket, the other end of the rotating rod is connected to a side plate and rotatably arranged in the side plate, and the end of the rotating rod is rotatably arranged in the side plate and sleeved with a gear one.
[0009] According to the technical scheme, a circular hole is formed in the side plate in correspondence with the rotating rod, an annular groove block is fixed to the side plate in correspondence with the gear one, a gear disc is connected to the annular groove block, an internal gear rack is arranged on the gear disc in correspondence with the gear one, an external gear rack is formed on the periphery of the gear disc, a long groove is formed on the heat preservation heating jacket, a drive is arranged on the heat preservation heating jacket, a gear two is sleeved with a driving end of the drive, and the gear two is rotatably arranged in the long groove in correspondence with the external gear rack.
[0010] According to the technical scheme, annular blocks are connected between the seal opening plates, the annular blocks are rotatably arranged in the annular groove, limit arc blocks are fixed to the upper ends of the seal opening plates, annular frames are arranged at intervals on the outer sides of the partition frame, the limit arc blocks are clamped into the partition frame and the annular frame and rotatably arranged in the partition frame and the annular frame, reset springs are connected to the two sides of the limit arc blocks, and the other ends of the reset springs are connected to the annular frame.
[0011] According to the technical scheme, the position of the end of the rotating plate pointing to the center of the heat preservation heating jacket is taken as the vertical state of each rotating plate, in the vertical state of the rotating plate, the upper end of the rotating plate is connected to the inner surface of the partition frame, and the lower end of the rotating plate is connected to the outer surface of the end cover, in the initial state, the reset spring is not subjected to external force, the seal opening plate corresponds to the window, the partition frame and the seal opening frame form a seal plate structure, the space in the heat preservation heating jacket is divided into two parts, the inside is set as a sealed test area, and the outside is set as a heat storage area.
[0012] According to the technical scheme, a heat absorbing layer is arranged in the heat storage area of the heat preservation heating jacket, the heat absorbing layer is composed of a plurality of porous materials to increase the heat exchange area, and a temperature detection module is arranged in the heat storage area to detect the temperature state in the heat storage area.
[0013] According to the technical scheme, the sealed test area is provided with a pressure detection module, the pressure detection module comprises a plurality of pressure detection units, and the pressure detection units are arranged between every two vertical rotating plates, when the rotating plates remain in the vertical state, a sealed space is formed between the two rotating plates, the pressure detection units are used for detecting the pressure state in each sealed space, and the sealing state of the sealing cover after being connected to the end cover is evaluated.
[0014] According to the technical scheme, the heat preservation heating jacket is provided with an inlet on the upper side and an outlet on the lower side, and the inlet and the outlet are respectively connected with a medium input and output device.
[0015] According to the technical scheme, a plurality of sealing grooves are formed on the circumference of the end cover, and a pressure sensor is fixedly connected in the sealing groove, which is used for detecting the pressure when the end cover is connected with the sealing cover, so as to ensure that the end of the pressure container is tightly connected and a high-pressure environment is formed in the interior.
[0016] According to the technical scheme, a mounting groove is arranged on one side of the pressure bearing frame close to the end cover, the sealing cover comprises a hydraulic cylinder, a top block and a plug cover, the hydraulic cylinder is mounted in the mounting groove, the top block is fixed on the output end of the hydraulic cylinder, the plug cover is fixed on one side of the top block and coaxial with the end cover, the outer diameter of the plug cover matches the inner diameter of the end cover, a plurality of sealing blocks are fixedly connected on the plug cover and correspondingly matched with the sealing grooves.
[0017] According to the technical scheme, conveying belts are arranged on both sides of the pressure bearing frame, and a feeding platform is arranged between the conveying belts, which is used for assisting feeding and discharging.
[0018] Compared with the prior art, the present application has the following beneficial effects: through the heat preservation heating jacket arranged outside the end cover and the heat absorption layer arranged inside the heat preservation heating jacket, the heat carried by the high-temperature medium overflowing from the pressure container when the sealing cover is opened can be actively collected and stored, the heat energy in the opening process is effectively avoided from being directly dissipated to the environment, the working environment is improved, the heat pollution is reduced, and through recycling and utilization of the heat energy (such as preheating or other process flow), the energy utilization efficiency of the whole system is significantly improved, and the purpose of energy saving and emission reduction is achieved.
[0019] By arranging a distributed pressure detection unit in the sealing test area, an independent sealed space can be formed between adjacent rotating plates when the rotating plate is in a vertical state. By monitoring the pressure change in these spaces, the overall sealing state after the end cover is connected with the sealing cover can be evaluated in real time and online. This multi-point and local monitoring method has high sensitivity and can timely find early and trace amounts of leakage hidden dangers, providing double protection for the safe operation of the pressure container under high-pressure working conditions and greatly improving the safety of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0020] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the isostatic press of the present application; Figure 2 is a schematic diagram of the local structure of the isostatic press of the present application; Figure 3is the connecting structure diagram of the heat preservation heating sleeve of the present application; Figure 4 is the internal structure diagram of the heat preservation heating sleeve of the present application; Figure 5 is the connecting structure diagram of the partition frame and the opening frame of the present application; Figure 6 is the structure diagram of the partition frame of the present application; Figure 7 is the structure diagram of the opening frame of the present application; Figure 8 is the local structure diagram of the heat preservation heating sleeve of the present application; Figure 9 is the A area enlarged diagram of the present application; Figure 8 Figure 10 is the local sectional view of the side plate and the gear disc of the present application; Figure 11 is the space distribution diagram of the sealing test area and the heat storage area of the present application; Figure 12 is the B area enlarged diagram of the present application; Figure 11 Figure 13 is the structure diagram of the sealing cover of the present application.
[0021] In the figure: 1, pressure bearing frame; 2, pressure container; 21, end cover; 211, sealing groove; 212, pressure sensor; 3, sealing cover; 31, hydraulic cylinder; 32, top block; 33, plug cover; 34, sealing block; 4, heat preservation heating sleeve; 41, partition frame; 411, annular groove; 412, window; 413, annular frame; 414, heat absorbing layer; 42, opening frame; 421, opening plate; 422, driving block; 423, annular block; 424, limit arc block; 425, reset spring; 43, rotating plate; 44, rotating rod; 45, side plate; 451, circular hole; 452, annular groove block; 46, gear one; 47, gear disc; 471, inner gear rack; 472, outer gear rack; 48, driver; 49, gear two; 5, sealing test area; 6, heat storage area; 7, conveying belt; 8, feeding platform. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] Please refer to Figures 1-13 The present invention provides a technical solution: a 1000MPa-level isostatic press with strong sealing performance, including a pressure frame 1, a pressure vessel 2 and a sealing mechanism. One end of the pressure vessel 2 is installed on the pressure frame 1 for placing the workpiece mold to be statically pressed. The other end of the pressure vessel 2 is fixedly connected to an end cover 21. The sealing mechanism includes a sealing cover 3 and a heat insulation and heating sleeve 4. The sealing cover 3 is configured to cooperate with the end cover 21 for opening or closing the pressure vessel 2. The heat insulation and heating sleeve 4 is sleeved on the outside of the end cover 21 for collecting the heat when the sealing cover 3 is opened and for detecting the sealing performance of the end cover 21 during operation.
[0024] like Figures 5-7 As shown, a partition frame 41 is fixed inside the heat insulation heating jacket 4. An annular groove 411 is opened in the middle of the partition frame 41. Several windows 412 are opened around the circumference of the partition frame 41. An opening frame 42 is movably connected to the partition frame 41. A corresponding number of opening plates 421 are fixed on the opening frame 42 to cooperate with each window 412. A driving block 422 is connected to the inner side of the opening plate 421. A rotating plate 43 is rotatably arranged inside the heat insulation heating jacket 4 to cooperate with each driving block 422. The rotating plate 43 is spindle-shaped and has rounded corners at the ends.
[0025] like Figure 12 As shown, a rotating rod 44 is inserted through the middle of the rotating plate 43. One end of the rotating rod 44 is rotatably engaged with the inner wall of the heat insulation and heating sleeve 4, and the other end of the rotating rod 44 is connected to and rotatably engaged with the side plate 45. The end of the rotating rod 44 passes through the side plate 45 and is fitted with a gear 46.
[0026] Furthermore, such as Figure 9 , Figure 10 As shown, a circular hole 451 is provided on the side plate 45 to cooperate with the rotating rod 44. An annular groove block 452 is fixed on the side plate 45 to cooperate with the gear 46. The annular groove block 452 is connected to the gear disk 47. The gear disk 47 is equipped with an inner rack 471 to cooperate with the gear 46. An outer rack 472 is provided around the gear disk 47. A long groove is provided on the heat insulation heating sleeve 4. A driver 48 is installed on the heat insulation heating sleeve 4. A gear 49 is sleeved on the driving end of the driver 48. One side of the gear 49 passes through the long groove and cooperates with the outer rack 472.
[0027] In actual operation, the driver 48 uses a micro motor to drive the gear 49 to rotate in the forward or reverse direction. The gear 49 drives the gear disk 47 to rotate synchronously through the external rack 472, so that the gear disk 47 drives each gear 46 to rotate in the same direction through the internal rack 471, thereby realizing the rotation rod 44 driving the rotating plate 43 to rotate.
[0028] like Figure 7As shown, an annular block 423 is connected between the opening plates 421. The annular block 423 is rotatably engaged with the annular groove 411. A limiting arc block 424 is fixed at the upper end of the opening plate 421. An annular frame 413 is provided at intervals on the outer side of the separator 41. The two ends of the limiting arc block 424 are inserted between the separator 41 and the annular frame 413 and are rotatably engaged with them. A return spring 425 is connected to both sides of the limiting arc block 424. The other end of the return spring 425 is connected to the annular frame 413.
[0029] The following is a supplementary explanation based on the above structure: The opening plate 421 has an arc-shaped plate structure, and its area is larger than that of the window 412. The position where the end of the rotating plate 43 points to the center of the insulation heating sleeve 4 is considered the vertical state of each rotating plate 43. In the vertical state, the upper end of the rotating plate 43 is in contact with the inner surface of the partition frame 41, and the lower end of the rotating plate 43 is in contact with the outer surface of the end cover 21. In the initial state, the return spring 425 is not subjected to external force, the opening plate 421 corresponds to the window 412, and the partition frame 41 and the opening frame 42 form a sealing plate structure, dividing the inner space of the insulation heating sleeve 4 into two parts: the inner part is set as the sealing test area 5, and the outer part is set as the heat storage area 6. When the rotating plate 43 rotates, it pushes the corresponding drive block 422, causing the opening frame 42 to rotate relative to the partition frame 41. At this time, the opening plate 421 deviates from the window 412, making the inner and outer spaces of the insulation heating sleeve 4 connected. The length setting of the drive block 422 satisfies the following: when the rotating plate 43 rotates to a certain angle, the drive block 422 automatically separates from the rotating plate 43, and the unsealing frame 42 returns to its original position under the action of the reset spring 425. At this time, the unsealing plate 421 and the window 412 are aligned again.
[0030] In one embodiment, such as Figure 8 As shown, the heat storage area 6 of the heat insulation heating jacket 4 is provided with a heat absorption layer 414. The heat absorption layer 414 is composed of multiple layers of porous materials (such as metal foam or honeycomb structure) to increase the heat exchange area. A temperature detection module is provided in the heat storage area 6 to detect the temperature status in the heat storage area 6.
[0031] Furthermore, the sealing test area 5 is equipped with a pressure detection module, which includes several pressure detection units. The pressure detection units are located between every two vertical rotating plates 43. When the rotating plates 43 are kept vertical, a sealing space is formed between the two rotating plates 43. The pressure detection units are used to detect the pressure state in each sealing space and evaluate the sealing state after the sealing cover 3 is connected to the end cover 21.
[0032] It should be noted that the length of the heat insulation heating jacket 4 extends beyond the surface of the end cover 21. When the sealing cover 3 is disconnected from the end cover 21, the medium inside the pressure vessel 2 enters the heat insulation heating jacket 4, and enters the heat storage zone 6 for heat exchange after the window 412 is opened, thereby storing the heat in the medium and reducing heat loss when the cover is opened.
[0033] Optionally, the heat insulation heating jacket 4 has an inlet on the upper side and an outlet on the lower side, with the inlet and outlet respectively connected to a medium input / output device.
[0034] Several sealing grooves 211 are formed along the circumference of the end cap 21. A pressure sensor 212 is fixedly connected in the sealing groove 211. The pressure sensor 212 is used to detect the pressure when the end cap 21 is connected to the sealing cover 3 to ensure that the end connection of the pressure vessel 2 is tight and a high-pressure environment can be formed inside. On the other hand, after the pressure detection unit performs an overall evaluation of the sealing status, the pressure sensor 212 is used to detect whether the sealing is not tight due to the end connection. If not, the pressure leakage is caused by damage to the outer surface of the end cap 21.
[0035] like Figure 13 As shown, the pressure frame 1 has an installation groove on the side near the end cover 21. The sealing cover 3 includes a hydraulic cylinder 31, a top block 32, and a plug 33. The hydraulic cylinder 31 is installed in the installation groove. The top block 32 is fixed to the output end of the hydraulic cylinder 31. The plug 33 is fixed to one side of the top block 32 and is coaxial with the end cover 21. The outer diameter of the plug 33 matches the inner diameter of the end cover 21. Several sealing blocks 34 are fixedly connected to the plug 33. The sealing blocks 34 are correspondingly matched with the sealing groove 211.
[0036] In actual operation, the hydraulic cylinder 31 is started, which drives the top block 32 and the plug 33 on the top block 32 to move, connecting the plug 33 to the end cover 21. The sealing block 34 is embedded in the sealing groove 211, so that the sealing block 34 squeezes the pressure sensor 212. At this time, the pressure sensor 212 can obtain the pressure data when the plug 33 seals the end cover 21.
[0037] In one embodiment, conveyor belts 7 are respectively provided on both sides of the pressure frame 1, and a loading platform 8 is provided between the conveyor belts 7 to assist in loading and unloading.
[0038] The sealing test method is as follows: Step 1: Test preparation and space isolation. Ensure that the sealing cap 3 and end cap 21 are completely closed, the sealing block 34 is embedded in the sealing groove 211, and the pressure sensor 212 displays that the preset clamping force has been reached. Start the driver 48 to drive all the rotating plates 43 to the "vertical state". In the vertical state of the rotating plates 43, their upper and lower ends are in contact with the inner surface of the partition frame 41 and the outer surface of the end cap 21, respectively, thereby dividing the sealing test area 5 into multiple independent annular sealed small spaces.
[0039] Step 2: Pressure monitoring and data acquisition. The pressure detection units located in each enclosed small space begin to operate, monitoring and recording the pressure values of their respective spaces in real time. Data from all pressure detection units is continuously collected to observe the pressure change trends.
[0040] Step 3: Sealing Status Assessment. Good Sealing Determination: If the pressure in all enclosed spaces remains stable within a set time or fluctuates only within a very small permissible range, the sealing performance between end cap 21 and sealing cap 3 is determined to be good. Leakage Determination: If the pressure in any one or more enclosed spaces experiences a sustained and significant drop, the system determines that a leak has occurred in that area.
[0041] The fourth step is leak cause diagnosis. Upon detection of a leak, the system automatically retrieves data from the pressure sensor 212 within the sealing groove 211 of the end cap 21. If the pressure sensor 212 reading is normal or higher than the set lower limit, it indicates sufficient clamping force of the sealing cap 3, and the leak is likely due to physical damage or aging of the sealing contact surface (such as the sealing block 34 or the sealing groove 211). If the pressure sensor 212 reading is lower than the set lower limit, it indicates insufficient clamping force of the sealing cap 3, and the leak is due to a loose end connection.
[0042] Furthermore, if local pressure leakage is detected, the rotating plate 43 can be rotated so that adjacent rotating plates 43 are connected to form a small sealed space, so that the internal pressure is uniform and excessive local negative pressure is avoided.
[0043] The methods for heat collection and utilization are as follows: Heat capture and storage are performed during the opening operation. The moment the sealing cap 3 separates from the end cap 21, the high-temperature medium (such as high-temperature gas or steam) inside the pressure vessel 2 rapidly flows into the sealing test area 5. The incoming high-temperature medium enters the heat storage area 6 through the opened window 412. Inside the heat storage area 6, the high-temperature medium comes into full contact with the large, multi-layered, porous heat-absorbing layer 414. The heat of the medium is rapidly absorbed and stored by the heat-absorbing layer 414. The porous structure of the heat-absorbing layer 414 greatly increases the heat exchange area and improves heat exchange efficiency. The temperature of the medium after releasing heat is significantly reduced. The temperature detection module monitors the temperature inside the heat storage area 6 in real time. When the temperature reaches the set value or the opening process is completed, the control medium output device discharges the cooled medium from the outlet.
[0044] The heat stored in the heat-absorbing layer 414 can be continuously carried away and utilized by the circulating medium flowing through the heat storage zone 6 (controlled by the medium input and output device).
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A 1000MPa-class isostatic press with strong sealing performance, comprising a pressure frame (1), a pressure vessel (2), and a sealing mechanism, characterized in that, One end of the pressure vessel (2) is mounted on the pressure frame (1) for placing the workpiece mold to be statically pressed. The other end of the pressure vessel (2) is fixedly connected to an end cap (21). The sealing mechanism includes a sealing cap (3) and a heat insulation heating sleeve (4). The sealing cap (3) is configured to cooperate with the end cap (21) for opening or closing the pressure vessel (2). The heat insulation heating sleeve (4) is fitted outside the end cap (21) for collecting heat when the sealing cap (3) is opened and for detecting the sealing performance of the end cap (21) during operation. The heat insulation heating jacket (4) has a partition frame (41) fixed inside. The partition frame (41) has an annular groove (411) in the middle. The partition frame (41) has several windows (412) around its circumference. The partition frame (41) is movably connected to an opening frame (42). The opening frame (42) is fixed with a corresponding number of opening plates (421) to each window (412). The opening plate (421) is connected to a driving block (422) on its inner side. The heat insulation heating jacket (4) has a rotating plate (43) that rotates in coordination with each driving block (422). The rotating plate (43) is spindle-shaped and has rounded corners at its ends.
2. The 1000MPa-class isostatic press with strong sealing performance according to claim 1, characterized in that, A rotating rod (44) is inserted through the middle of the rotating plate (43). One end of the rotating rod (44) is rotatably engaged with the inner wall of the heat insulation heating sleeve (4). The other end of the rotating rod (44) is connected to a side plate (45) and rotatably engaged with it. The end of the rotating rod (44) passes through the side plate (45) and is fitted with a gear (46).
3. A 1000MPa-class isostatic press with strong sealing performance according to claim 2, characterized in that, A circular hole (451) is provided on the side plate (45) to cooperate with the rotating rod (44). An annular groove block (452) is fixed on the side plate (45) to cooperate with the gear one (46). A gear plate (47) is connected to the annular groove block (452). An inner rack (471) is provided on the gear plate (47) to cooperate with the gear one (46). An outer rack (472) is provided on the periphery of the gear plate (47). A long groove is provided on the heat insulation heating sleeve (4). A driver (48) is installed on the heat insulation heating sleeve (4). A gear two (49) is sleeved on the driving end of the driver (48). One side of the gear two (49) passes through the long groove and cooperates with the outer rack (472).
4. A 1000MPa-class isostatic press with strong sealing performance according to claim 3, characterized in that, An annular block (423) is connected between the opening plates (421). The annular block (423) is rotatably engaged with the annular groove (411). A limiting arc block (424) is fixed at the upper end of the opening plate (421). An annular frame (413) is provided at intervals on the outer side of the separator (41). The two ends of the limiting arc block (424) are inserted between the separator (41) and the annular frame (413) and rotatably engaged with them. A return spring (425) is connected to each side of the limiting arc block (424). The other end of the return spring (425) is connected to the annular frame (413).
5. A 1000MPa-class isostatic press with strong sealing performance according to claim 4, characterized in that, The position of the rotating plate (43) pointing to the center of the heat insulation heating jacket (4) is taken as the vertical state of each rotating plate (43). In the vertical state of the rotating plate (43), the upper end of the rotating plate (43) is in contact with the inner surface of the partition frame (41), and the lower end of the rotating plate (43) is in contact with the outer surface of the end cover (21). In the initial state, the reset spring (425) is not subjected to external force, the opening plate (421) corresponds to the window (412), and the partition frame (41) and the opening frame (42) form a sealing plate structure, which divides the inner space of the heat insulation heating jacket (4) into two parts, the inner part is set as the sealing test area (5), and the outer part is set as the heat storage area (6).
6. A 1000MPa-class isostatic press with strong sealing performance according to claim 5, characterized in that, The heat storage area (6) of the heat insulation heating jacket (4) is provided with a heat absorption layer (414), which is composed of multiple layers of porous material. A temperature detection module is provided in the heat storage area (6) to detect the temperature status in the heat storage area (6).
7. A 1000MPa-class isostatic press with strong sealing performance according to claim 6, characterized in that, The sealing test area (5) is equipped with a pressure detection module, which includes several pressure detection units. The pressure detection units are located between every two vertical rotating plates (43). When the rotating plates (43) are kept vertical, a sealing space is formed between the two rotating plates (43). The pressure detection units are used to detect the pressure state in each sealing space and evaluate the sealing state after the sealing cover (3) and the end cover (21) are connected.
8. A 1000MPa-class isostatic press with strong sealing performance according to claim 7, characterized in that, The heat insulation heating jacket (4) has an inlet on its upper side and an outlet on its lower side. The inlet and the outlet are respectively connected to a medium input / output device.
9. A 1000MPa-class isostatic press with strong sealing performance according to claim 8, characterized in that, The end cap (21) has several sealing grooves (211) along its circumference. A pressure sensor (212) is fixedly connected in the sealing groove (211). The pressure sensor (212) is used to detect the pressure when the end cap (21) is connected to the sealing cap (3).
10. A 1000MPa-class isostatic press with strong sealing performance according to claim 9, characterized in that, The pressure frame (1) has an installation groove on one side near the end cover (21). The sealing cover (3) includes a hydraulic cylinder (31), a top block (32), and a plug (33). The hydraulic cylinder (31) is installed in the installation groove. The top block (32) is fixed to the output end of the hydraulic cylinder (31). The plug (33) is fixed to one side of the top block (32) and is coaxial with the end cover (21). The outer diameter of the plug (33) matches the inner diameter of the end cover (21). Several sealing blocks (34) are fixedly connected to the plug (33). The sealing blocks (34) are correspondingly matched with the sealing groove (211).