Isostatic press and pressurizing method thereof

Abstract

The invention provides an isostatic pressing machine and a pressurizing method thereof. A bearing structure comprises at least one group of bearing racks, and each bearing rack comprises two cross beams and a plurality of stand columns. The two cross beams are arranged at intervals in the first direction, the multiple stand columns are arranged between the two cross beams, and a mounting space is defined by the stand columns and the two cross beams. At least one of the two cross beams is internally provided with a flow channel, and the flow channel communicates with the installation space. The high-pressure cabin is arranged in the installation space and communicates with the flow channel, and the supercharger and the high-pressure pump are arranged outside the installation space and controlled to communicate with the flow channel. Due to the fact that the flow channel is arranged in the cross beam of the bearing machine frame, the pressurizer and the high-pressure pump can be controlled to be communicated with the high-pressure cabin body through the flow channel in the cross beam, in the using process of the isostatic pressing machine, the high-pressure cabin body can be pressurized through the high-pressure pump firstly, and then the high-pressure cabin body is pressurized through the pressurizer. Therefore, the overall pressurizing efficiency of the isostatic press can be obviously improved.

Description

Technical Field

[0001] This invention relates to the field of isostatic press technology, and in particular to an isostatic press and its pressurization method. Background Technology

[0002] An isostatic press typically consists of a booster, a high-pressure chamber, and a support structure to support the high-pressure chamber. Currently, the booster is usually connected to the high-pressure chamber via a high-pressure pipeline (i.e., direct booster connection), and the method of boosting to ultra-high pressure (e.g., 0-600MPa) is to directly boost pressure in one step using the booster. However, since the primary booster currently used is typically 25MPa, the boost ratio reaches 24 times, which means the flow rate becomes 1 / 24 of the primary flow rate. This results in a smaller secondary flow rate, manifested as a slower boosting rate in the first half of the boost (the lower pressure stage), thus affecting the overall boosting efficiency of the isostatic press. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes an isostatic press and its pressurization method.

[0004] In a first aspect, the isostatic press of the present invention includes a load-bearing structure, a high-pressure chamber, a booster, and a high-pressure pump. The load-bearing structure includes at least one set of load-bearing frames, each frame comprising two crossbeams and a plurality of columns. The two crossbeams are spaced apart in a first direction, and the plurality of columns are disposed between the two crossbeams, forming an installation space together with the two crossbeams. The first direction intersects the thickness direction of the crossbeams. At least one of the two crossbeams has a flow channel internally, which communicates with the installation space. The high-pressure chamber is disposed within the installation space and communicates with the flow channel; the booster and the high-pressure pump are disposed outside the installation space and controlled to communicate with the flow channel to pressurize the high-pressure chamber through the flow channel.

[0005] Furthermore, the flow channel has a first flow channel inlet, a second flow channel inlet, and a flow channel outlet, and the flow channel is connected to the high-pressure chamber through the flow channel outlet. The booster and the high-pressure pump are disposed outside at least one of the first flow channel inlet and the second flow channel inlet, and the booster is a single-stage booster.

[0006] Furthermore, the booster and the high-pressure pump are respectively provided on the outside of the first flow channel inlet and the second flow channel inlet; the booster has a pressurization state and a return state during operation. Among them, the booster located on the outside of the first flow channel inlet is the first booster, and the booster located on the outside of the second flow channel inlet is the second booster, and when the first booster is in the pressurization state, the second booster is in the return state.

[0007] Further, the crossbeam has: a first side surface; a second side surface connected to both ends of the first side surface; and two end faces, the two end faces being disposed opposite each other in a second direction, the end faces being connected to the first side surface and the second side surface, the second direction being parallel to the thickness direction of the crossbeam. The flow channel includes a first flow channel segment and a second flow channel segment that are interconnected, the second flow channel segment intersecting with the first flow channel segment, and at least one of the flow channel segments, the flow channel opening of which is located on the second side surface, and the flow channel opening located on the second side surface is the flow channel outlet.

[0008] Furthermore, the second flow channel segment extends along the first direction, with one end of the second flow channel segment connected to the first flow channel segment and the other end of the flow channel segment located on the second side. The first and second flow channel segments form a T-shaped structure, and the first flow channel segment communicates with the high-pressure chamber via the second flow channel segment. The two ends of the first flow channel segment are the first flow channel inlet and the second flow channel inlet, respectively, and the flow channel outlet of the second flow channel segment located on the second side is the flow channel outlet.

[0009] Furthermore, the extension direction of the first flow channel segment is parallel to the second direction, and the two end outlets of the first flow channel segment are respectively located on a corresponding end face.

[0010] Furthermore, the extension direction of the first flow channel segment is parallel to the third direction, and the flow channel openings at both ends of the first flow channel segment are located on the first side surface, wherein the third direction intersects with the second direction and the first direction.

[0011] Furthermore, the first flow channel segment and the second flow channel segment form a V-shaped structure, and one of the flow channel openings of both the first and second flow channel segments is located on the second side surface, with overlapping portions; the other flow channel opening of both the first and second flow channel segments is located on the first side surface. The flow channel openings of the first and second flow channel segments located on the first side surface are respectively the first flow channel inlet and the second flow channel inlet, and the flow channel openings of the first and second flow channel segments located on the second side surface are the flow channel outlets.

[0012] Further, the crossbeam has: a first side surface; a second side surface connected to both ends of the first side surface 11; and two end faces, the two end faces being disposed opposite each other in a second direction, the end faces being connected to the first side surface and the second side surface, the second direction being parallel to the thickness direction of the crossbeam. The flow channel includes a third flow channel segment, a fourth flow channel segment, and a fifth flow channel segment. The third flow channel segment and the fourth flow channel segment form a V-shaped structure, and one of the flow channel openings of the third flow channel segment and the fourth flow channel segment has an overlapping portion, and the other flow channel openings of the third flow channel segment and the fourth flow channel segment are both located on the first side surface. The fifth flow channel segment extends along the first direction, and one end of the flow channel opening of the fifth flow channel segment is connected to the third flow channel segment and the fourth flow channel segment, and the other end of the flow channel opening is located on the second side surface. The flow channel openings of the third flow channel segment and the fourth flow channel segment located on the first side surface are respectively the first flow channel inlet and the second flow channel inlet, and the flow channel opening of the fifth flow channel segment located on the second side surface is the flow channel outlet.

[0013] Furthermore, the outer edge of the column in the third direction does not extend beyond the crossbeam, the column abuts between the two crossbeams and is connected to the two crossbeams; the third direction intersects with the second direction and the first direction.

[0014] Furthermore, the column extends beyond the crossbeam at its outer edge in a third direction, and this third direction intersects with both the second and first directions. The support frame also includes two support beams, each supporting beam enclosing a receiving space for accommodating the crossbeam. Each support beam is positioned outside the corresponding crossbeam and extends beyond the crossbeam in the third direction. The column abuts between the two support beams and is connected to them.

[0015] In a second aspect, the pressurization method of the isostatic press of the present invention is applied to the isostatic press described above. The pressurization method includes: controlling the high-pressure pump to be connected to the flow channel; controlling the high-pressure pump to operate so as to pressurize the high-pressure chamber through the flow channel until the pressure inside the high-pressure chamber reaches a first target pressure; disconnecting the connection between the high-pressure pump and the flow channel, and controlling the booster to be connected to the flow channel and the high-pressure pump to be connected to the booster; controlling the high-pressure pump and the booster to operate so as to pressurize the high-pressure chamber through the booster and via the flow channel until the pressure inside the high-pressure chamber reaches a second target pressure.

[0016] The present invention has the following beneficial effects: Because the crossbeam supporting the frame has internal flow channels, the booster and high-pressure pump can be controlled to connect to the high-pressure chamber through these channels. The high-pressure transmission medium from the booster and pump can then be directly pumped into the high-pressure chamber to pressurize it. Therefore, during the use of the isostatic press, the high-pressure chamber can be pressurized first by the high-pressure pump, and then by the booster. Since the booster efficiency of the high-pressure pump is higher than that of the booster, the overall booster efficiency of the isostatic press can be significantly improved. Furthermore, the flow channels inside the crossbeam can completely replace external high-pressure pipelines, thereby improving the reliability of the isostatic press in high-pressure environments. Additionally, since this application eliminates the need for external high-pressure pipelines, it avoids the cost associated with frequent pipeline replacements, thus contributing to a reduction in the cost of the isostatic press.

[0017] The summary section is provided to present the chosen concepts in a simplified form, which will be further described in the detailed description below. The summary section is not intended to identify essential or necessary features of this disclosure, nor is it intended to limit the scope of this disclosure. Attached Figure Description

[0018] The above and other objects, features and advantages of this disclosure will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0019] Figure 1 This is a schematic diagram of the structure of an isostatic press before assembly, provided in an embodiment of this application. Figure 2 This is a schematic diagram of the assembled structure of an isostatic press provided in an embodiment of this application; Figure 3 A schematic diagram of the structure of another isostatic press before assembly, provided in an embodiment of this application; Figure 4 A schematic diagram of the assembled structure of another isostatic press provided in an embodiment of this application; Figure 5 A schematic diagram showing the connection between the booster and the flow channel of the isostatic press provided in an embodiment of this application; Figure 6 for Figure 4 A schematic diagram of a modified structure of an isostatic press; Figure 7 for Figure 4 A schematic diagram of another modified structure of the isostatic press; Figure 8 for Figure 4 A schematic diagram of another modified structure of the isostatic press; Figure 9 A perspective structural diagram of the first type of crossbeam provided in the embodiments of this application; Figure 10 A perspective structural diagram of the second type of crossbeam provided in an embodiment of this application; Figure 11 A perspective structural diagram of the third type of crossbeam provided in the embodiments of this application; Figure 12 This is a perspective structural diagram of the fourth type of crossbeam provided in the embodiments of this application.

[0020] The reference numerals in the attached figures are explained as follows: 100. Load-bearing structure; 10. Crossbeam; 11. First side face; 12. Second side face; 13. End face; T. Flow channel; T1. First flow channel section; T2. Second flow channel section; T3. Third flow channel section; T4. Fourth flow channel section; T5. Fifth flow channel section; 30. Load-bearing beam; 40. Pad block; 200. High-pressure chamber; 300. Supercharger; 400. High-pressure pump; 500, plug; L1, first direction; L2, second direction; L3, third direction. Detailed Implementation

[0021] Embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0022] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0023] This application provides an isostatic press, which can be a warm isostatic press, a cold isostatic press, or a hot isostatic press. The embodiments of this application are not limited to this.

[0024] Please refer to Figures 1 to 8 The static pressure press 000 includes a load-bearing structure 100, a high-pressure chamber 200, a booster 300, and a high-pressure pump 400.

[0025] Among them, the bearing structure 100 serves as the bearing mechanism of the isostatic press 000 and can support the high-pressure chamber 200. The high-pressure chamber 200 can be filled with pressure transmission medium (such as oil / water / gas). The booster 300 and the high-pressure pump 400 serve as power sources and can pump the high-pressure transmission medium into the high-pressure chamber 200 according to the requirements to boost the pressure of the high-pressure chamber 200.

[0026] The load-bearing structure 100 may include at least one set of load-bearing frames. Specifically, such as... Figure 1 and Figure 2 As shown, the load-bearing frame may include a set of load-bearing frames; as Figure 3 and Figure 4 As shown, the load-bearing frame may include two sets of load-bearing frames. Of course, it is not limited to this; the load-bearing frame may also include two or more sets of load-bearing frames. When the load-bearing frame includes two or more sets of load-bearing frames, adjacent sets of load-bearing frames are connected to each other (e.g., by bolts).

[0027] like Figure 2 , Figure 4 as well as Figures 6 to 8 As shown, the support frame of the support structure 100 may include two crossbeams 10 and multiple columns 20. The two crossbeams 10 are spaced apart in a first direction L1, which intersects the thickness direction of the crossbeams 10. For example, the first direction L1 is perpendicular to the thickness direction of the crossbeams 10.

[0028] Multiple columns 20 are arranged between two crossbeams 10, forming an installation space R together with the two crossbeams 10. At least one of the two crossbeams 10 has an internal flow channel T, which communicates with the installation space R. A high-pressure chamber 200 is located within the installation space R and communicates with the flow channel T. A booster 300 and a high-pressure pump 400 are located outside the installation space R and can be controlled to communicate with the flow channel T to pressurize the high-pressure chamber 200 through the flow channel T.

[0029] That is, when the booster 300 is connected to the flow channel T, the high-pressure chamber 200 can be pressurized by the high-pressure pump 400 via the booster 300 and the flow channel T; when the high-pressure pump 400 is directly connected to the flow channel T, the high-pressure chamber 200 can be pressurized by the high-pressure pump 400 and the flow channel T. Additionally, the high-pressure chamber 200 can be connected to the flow channel T via the plug 500.

[0030] It should be noted that, to ensure sufficient strength of the load-bearing frame, the crossbeam 10 is typically made of ultra-high strength forged steel with a tensile strength ≥1000MPa. The wall thickness of the flow channel T can be calculated and designed using the Lamié formula and verified through finite element analysis to ensure that the stress state of the flow channel wall of flow channel T is within the yield strength, while reserving a certain safety margin to improve the stability of the flow channel wall of flow channel T under high pressure.

[0031] In this application, since the crossbeam 10 supporting the frame is internally equipped with a flow channel T, the booster 300 and the high-pressure pump 400 can communicate with the high-pressure chamber 200 through the flow channel T inside the crossbeam 10. Therefore, the high-pressure transmission medium from the booster 300 and the high-pressure pump 400 can be directly pumped into the high-pressure chamber 200 through the flow channel T to pressurize the high-pressure chamber 200. Thus, during the use of the isostatic press 000, the high-pressure chamber 200 can be pressurized first by the high-pressure pump 400, and then by the booster 300. Since the pressurization efficiency of the high-pressure pump 400 is higher than that of the booster 300, the overall pressurization efficiency of the isostatic press 000 can be significantly improved. Furthermore, the flow channel T inside the crossbeam 10 can completely replace the external high-pressure pipeline, thereby improving the reliability of the isostatic press 000 in high-pressure environments. In addition, since this application does not require an external high-pressure pipeline, it can avoid the cost problem caused by frequent replacement of high-pressure pipelines, thereby helping to reduce the cost of the isostatic press 000.

[0032] In some embodiments, such as Figure 2 , Figure 4 as well as Figure 6 and Figure 7 As shown, the crossbeam 10 of the isostatic press 000 can be a semi-circular beam, an elliptical beam, a rectangular beam, or an arched beam; this embodiment does not limit the specific type of beam.

[0033] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the outer edge of the column 20 in the third direction L3 does not extend beyond the crossbeam 10, and both ends of the column 20 directly abut against the two opposing crossbeams 10. That is, in this embodiment, the load-bearing beam 30 is adapted to the crossbeam 10, and the column 20 and the crossbeams 10 at both ends can be fixed together by wrapping steel wire (e.g., Figure 2 , Figure 4 and Figure 6 As shown), together they form a load-bearing frame structure. Alternatively, the two ends of the columns 20 can be integrally formed with the beams 10 to create a monolithic frame structure (as shown). Figure 7 (As shown).

[0034] In some embodiments, such as Figure 4 , Figure 6 and Figure 7 As shown, the support frame also includes a pad 40, which is disposed on the side of the crossbeam 10 facing the column 20 and located between the two columns 20. The pad 40 may also have corresponding flow channels, which is not limited in this application.

[0035] like Figure 8 As shown, the outer edge of the column 20 extends beyond the crossbeam 10 in the third direction L3. The support frame also includes a support beam 30, which surrounds a receiving space for the crossbeam 10. The support beam 30 is located outside the crossbeam 10 and extends beyond the crossbeam 10 in the third direction L3, and is supported on the column 20. That is, in this embodiment, the support beam 30 is adapted to the crossbeam 10, and the column 20 and the crossbeams 10 and support beam 30 at both ends can be fixedly connected together by winding steel wire to form a frame structure support frame.

[0036] Specifically, the load-bearing beam 30 may include multiple halves 31, which are sequentially spliced ​​together along a third direction L3 to form a receiving space. The halves 31 at both ends along the third direction L3 are respectively supported on corresponding columns 20. That is, the columns 20, their end beams 10, and the multiple halves 31 of the load-bearing beam 30 are fixedly connected together by winding steel wire. For example, the load-bearing beam 30 has two halves 31, which are spliced ​​together to form the receiving space.

[0037] In this embodiment, by dividing the load-bearing beam 30 into multiple spliced ​​structures, the weight of individual parts can be reduced, thereby reducing the difficulty of manufacturing and transportation.

[0038] In other words, the crossbeam 10 can be used independently or in conjunction with the load-bearing beam 30; this embodiment does not limit this. Regardless of the form, the crossbeam 10 can be used as follows: Figures 9 to 12 The specific structure shown.

[0039] Please refer to Figures 1 to 12 The crossbeam 10 has a first side surface 11, a second side surface 12, and two end faces 13. The first side surface 11 is connected to the second side surface 12 at both ends in its bending direction, and the two end faces 13 are arranged opposite each other in a second direction L2, and the end faces 13 are connected to the first side surface 11 and the second side surface 12. The second direction L2 is parallel to the thickness direction of the crossbeam 10. For example, when the crossbeam 10 is a semi-circular beam, the first side surface 11 is an arc-shaped surface, the second side surface 12 is a rectangular surface and is connected to both ends of the first side surface 11, and the end faces 13 are semi-circular surfaces.

[0040] In some embodiments, such as Figures 9 to 12As shown, the flow channel T has a first flow channel inlet A1, a second flow channel inlet A2, and a flow channel outlet A3, and the flow channel T is connected to the high-pressure chamber 200 through the flow channel outlet A3. At least one of the first flow channel inlet A1 and the second flow channel inlet A2 is provided with a booster 300 and a high-pressure pump 400 on its outer side, and the booster 300 is a single-stage booster. That is, the booster 300 and the high-pressure pump 400 may be provided on the outer side of one of the first flow channel inlet A1 and the second flow channel inlet A2, while the other is not; or, both the first flow channel inlet A1 and the second flow channel inlet A2 may have a booster 300 and a high-pressure pump 400 on their outer sides.

[0041] In this embodiment, the positions of the booster 300 and the high-pressure pump 400 can be set based on the positions of the first flow channel inlet A1 and the second flow channel inlet A2. By directly connecting the booster 300 and the high-pressure pump 400 to the flow channel T, a single-stage booster can be used, which can improve the boosting response during the boosting process and help reduce costs.

[0042] In some embodiments, such as Figures 9 to 12 As shown, a booster 300 and a high-pressure pump 400 are provided on the outside of the first flow channel inlet A1 and the second flow channel inlet A2, and the booster 300 has a boosting state and a return state during operation.

[0043] Among them, the booster 300 located outside the first flow channel inlet A1 is the first booster, and the booster 300 located outside the second flow channel inlet A2 is the second booster. During the operation of the isostatic press 000, when the first booster is in the boosting state, the second booster is in the return state.

[0044] This configuration improves the overall stress distribution on the load-bearing frame of the isostatic press 000, and ensures that there is a pressurization stroke at any given time, thus making the overall working state of the isostatic press 000 relatively stable.

[0045] In some embodiments, such as Figures 9 to 11 As shown, the flow channel T may include a first flow channel segment T1 and a second flow channel segment T2 that are interconnected. The second flow channel segment T2 intersects with the first flow channel segment T1 (i.e., the second flow channel segment T2 is set at a certain angle to the first flow channel segment T1), and at least one of the flow channel openings of the first flow channel segment T1 and the second flow channel segment T2 is located on the second side surface 12, and the flow channel opening located on the second side surface 12 is the flow channel outlet A3 of the flow channel T. That is, the crossbeam 10 is connected to the high-pressure chamber 200 through the flow channel outlet A3 located on the second side surface 12.

[0046] Specifically, the angle between the second flow channel section T2 and the first flow channel section T1 can be 90°, greater than 0° and less than 90°, or greater than 90° and less than 180°. This application does not impose any limitations on the embodiments described.

[0047] In this embodiment, only one of the flow channels of the first flow channel segment T1 may be located on the second side surface 12, or only one of the flow channels of the second flow channel segment T2 may be located on the second side surface 12, or both one of the flow channels of the first flow channel segment T1 and one of the flow channels of the second flow channel segment T2 may be located on the second side surface 12.

[0048] Furthermore, the first flow channel section T1 and the second flow channel section T2 can respectively send high-pressure transmission medium into the high-pressure chamber 200 through the corresponding booster 300; alternatively, one of the first flow channel section T1 and the second flow channel section T2 can send high-pressure transmission medium into the high-pressure chamber 200 through the other, and this application embodiment does not limit this.

[0049] In some embodiments, such as Figure 9 and Figure 10 As shown, the second flow channel section T2 extends along the first direction L1, with one end of the flow channel section T2 connected to the first flow channel section T1 and the other end located on the second side surface 12. The first flow channel section T1 and the second flow channel section T2 form a T-shaped structure (i.e., the first flow channel section T1 and the second flow channel section T2 are arranged perpendicularly to each other), and the first flow channel section T1 is connected to the high-pressure chamber 200 via the second flow channel section T2. ​​The two end flow channel openings of the first flow channel section T1 are the first flow channel inlet A1 and the second flow channel inlet A2, respectively, and the flow channel opening of the second flow channel section T2 located on the second side surface 12 is the flow channel outlet A3.

[0050] In this embodiment, the flow channel T is connected to the corresponding booster 300 through the first flow channel inlet A1 and the second flow channel inlet A2 at both ends of the first flow channel section T1, and is connected to the high-pressure chamber 200 through the flow channel outlet A3 located on the second side 12 of the second flow channel section T2. ​​Thus, the booster 300 can sequentially send high-pressure transmission medium into the high-pressure chamber 200 through the first flow channel section T1 and the second flow channel section T2.

[0051] In some embodiments, such as Figure 9 As shown, the extension direction of the first flow channel segment T1 is parallel to the third direction L3, and both ends of the flow channel segment T1 are located on the first side surface 11. That is, the first flow channel inlet A1 and the second flow channel inlet A2 are both located on the first side surface 11. Among them, the third direction L3 intersects the second direction L2 and the first direction L1. For example, the third direction L3 is perpendicular to the second direction L2 and the first direction L1.

[0052] It should be noted that, in this embodiment, based on the different positions of the first flow channel inlet A1 and the second flow channel inlet A2 on the first side surface 11, the line connecting the center of the first flow channel inlet A1 or the second flow channel inlet A2 on the first side surface 11 and the center of the flow channel outlet A3 on the second side surface 12 forms an angle of different sizes with the second side surface 12 (e.g., 25°~75°). For example, the angle formed by the line connecting the center of the first flow channel inlet A1 or the second flow channel inlet A2 on the first side surface 11 and the center of the flow channel outlet A3 on the second side surface 12 with the second side surface 12 can be 25°, 30°, 45°, 60°, 70°, 75°, etc.

[0053] Therefore, in this embodiment, since the flow channel openings at both ends of the first flow channel segment T1 (i.e., the first flow channel inlet A1 and the second flow channel inlet A2) are both distributed on the first side surface 11, flow channels T with different structural forms can be obtained by adjusting the position of their flow channel openings on the first side surface 11.

[0054] In other embodiments, such as Figure 7 As shown, the extension direction of the first flow channel section T1 is parallel to the second direction L2, and the two flow channel openings at both ends of the first flow channel section T1 are located on a corresponding end face 13. That is, the first flow channel inlet A1 and the second flow channel inlet A2 are both located on the end face 13, and the first flow channel section T1 is arranged to penetrate the crossbeam 10 along the thickness direction of the crossbeam 10.

[0055] In some embodiments, such as Figure 11 As shown, the first flow channel section T1 and the second flow channel section T2 form a V-shaped structure. One of the flow channel openings of the first flow channel section T1 and one of the flow channel openings of the second flow channel section T2 are both located on the second side surface 12, and they have overlapping portions. The other flow channel opening of the first flow channel section T1 and the other flow channel opening of the second flow channel section T2 are both located on the first side surface 11.

[0056] The flow channel openings on the first side 11 of the first flow channel section T1 and the second flow channel section T2 are respectively the first flow channel inlet A1 and the second flow channel inlet A2, and the flow channel openings on the second side 12 of the first flow channel section T1 and the second flow channel section T2 are the flow channel outlet A3.

[0057] In this embodiment, since the first flow channel section T1 and the second flow channel section T2 form a V-shaped structure, and the flow channels on the second side 12 of the two have overlapping portions (that is, the flow channels on the second side 12 of the first flow channel section T1 and the second flow channel section T2 are interconnected), the first flow channel section T1 and the second flow channel section T2 can be fed into the high-pressure chamber 200 through the corresponding booster 300, respectively through the overlapping portions of the flow channels on the second side 12 of the two.

[0058] It should be noted that, in this embodiment, based on the different positions of the flow channel openings of the first flow channel segment T1 and the second flow channel segment T2 on the first side surface 11, different angles (such as 25°~75°) are formed between the first flow channel segment T1 and the second flow channel segment T2. For example, the angle formed between the first flow channel segment T1 and the second flow channel segment T2 can be 25°, 30°, 45°, 60°, 70°, 75°, etc.

[0059] Therefore, in this embodiment, since the first flow channel inlet A1 and the second flow channel inlet A2 are both distributed on the first side 11, flow channels T with different structural forms can be obtained by adjusting their positions on the first side 11.

[0060] In some embodiments, such as Figure 12 As shown, flow channel T may include a third flow channel segment T3, a fourth flow channel segment T4, and a fifth flow channel segment T5.

[0061] The third flow channel segment T3 and the fourth flow channel segment T4 form a V-shaped structure, with one flow channel opening of the third flow channel segment T3 and one flow channel opening of the fourth flow channel segment T4 overlapping each other. The other flow channel openings of the third flow channel segment T3 and the fourth flow channel segment T4 are both located on the first side surface 11. The fifth flow channel segment T5 extends along the first direction L1. One end of the fifth flow channel segment T5 is connected and communicates with the third flow channel segment T3 and the fourth flow channel segment T4 (i.e., it communicates with the overlapping flow channel openings of the third flow channel segment T3 and the fourth flow channel segment T4), and the other end of the flow channel opening is located on the second side surface 12. That is, the fifth flow channel segment T5, together with the third flow channel segment T3 and the fourth flow channel segment T4, forms a Y-shaped structure.

[0062] Among them, the flow channel openings on the first side 11 of the third flow channel section T3 and the fourth flow channel section T4 are the first flow channel inlet A1 and the second flow channel inlet A2, respectively, and the flow channel opening on the second side 12 of the fifth flow channel section T5 is the flow channel outlet A3.

[0063] It should be noted that, in this embodiment, based on the different positions of the flow channel openings of the third flow channel segment T3 and the fourth flow channel segment T4 on the first side surface 11 and / or the length of the fifth flow channel segment T5, different angles (e.g., 25°~75°) can be formed between the third flow channel segment T3 and the fourth flow channel segment T4. For example, the angle formed between the third flow channel segment T3 and the fourth flow channel segment T4 can be 25°, 30°, 45°, 60°, 70°, 75°, etc.

[0064] Therefore, in this embodiment, since one of the flow outlets of the third flow channel section T3 and one of the flow outlets of the fourth flow channel section T4 are both distributed on the first side surface 11, flow channels T with different structural forms can be obtained by adjusting the position of their flow outlets on the first side surface 11 and / or the length of the fifth flow channel section T5.

[0065] In some embodiments, the inner wall thickness of the flow channel T may be not less than 36 mm. The inner wall thickness of the flow channel T can be calculated using the LaMei formula.

[0066] It should be noted that, in the above embodiments, the radius of curvature of each part of the flow channel T at the connection position can be no less than 3 times the diameter of the flow channel T, thereby avoiding right-angle bends in the flow channel T. Furthermore, the cross-section of the flow channel T adopts a gradual transition without any abrupt changes (such as steps or constrictions). The connection between the flow channel T and the joint or valve must be made of integral forging or a seamless structure.

[0067] Furthermore, the roughness of the inner wall of flow channel T is less than or equal to 0.8 μm, which reduces local turbulence and wear. In addition, flow channel T undergoes high-pressure jet cleaning and ultrasonic testing after machining to ensure the absence of metal debris, burrs, and other impurities, effectively preventing impurities from scratching the inner wall under high pressure and causing leaks.

[0068] The pressurization method for the isostatic press provided in this application embodiment is applied to any of the isostatic presses 000 described above. The pressurization method includes: S101 controls the high-pressure pump 400 to connect with the flow channel T.

[0069] S102, control the high-pressure pump 400 to work, so as to pressurize the high-pressure chamber 200 through the flow channel T until the pressure inside the high-pressure chamber 200 reaches the first target pressure.

[0070] Understandably, the flow rate of the high-pressure pump 400 is typically greater than that of the booster 300, allowing the high-pressure pump 400 to reach a pressure of 70 MPa. Therefore, the first target pressure can be 70 MPa. This application first uses the high-pressure pump 400 to directly pressurize the pressure inside the high-pressure chamber 200 to ultra-high pressure (e.g., 70 MPa). This fully utilizes the large flow rate of the high-pressure pump 400, enabling the pressure inside the high-pressure chamber 200 to be rapidly increased to 70 MPa. Compared to traditional booster pressurization methods, this significantly improves pressurization efficiency at this stage.

[0071] S103, disconnect the connection between the high-pressure pump 400 and the flow channel T, and control the connection between the booster 300 and the flow channel T, as well as the connection between the high-pressure pump 400 and the booster 300.

[0072] S104, control the operation of high-pressure pump 400 and booster 300 to pressurize high-pressure chamber 200 through booster 300 and flow channel T until the pressure inside high-pressure chamber 200 reaches a second target pressure. For example, the second target pressure can be 600 MPa or higher. By cooperating with high-pressure pump 400 and booster 300, the pressure inside high-pressure chamber 200 can be increased from 70 MPa to 600 MPa or higher.

[0073] Therefore, in the use of the isostatic press 000, the combined use of the high-pressure pump 400 and the booster 300 can shorten the initial pressure build-up time, thereby improving the overall boosting efficiency of the isostatic press 000.

[0074] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An isostatic press, characterized in that, It includes a load-bearing structure (100), a high-pressure chamber (200), a booster (300), and a high-pressure pump (400). The load-bearing structure (100) includes at least one set of load-bearing frames, each load-bearing frame including two crossbeams (10) and a plurality of columns (20); the two crossbeams (10) are spaced apart in a first direction (L1), and the plurality of columns (20) are disposed between the two crossbeams (10) and together with the two crossbeams (10) form an installation space (R), the first direction (L1) intersecting the thickness direction of the crossbeams (10); at least one of the two crossbeams (10) has a flow channel (T) inside, the flow channel (T) communicating with the installation space (R); The high-pressure chamber (200) is disposed within the installation space (R) and communicates with the flow channel (T); The booster (300) and the high-pressure pump (400) are located outside the installation space (R) and are controlled to communicate with the flow channel (T) to pressurize the high-pressure chamber (200) through the flow channel (T).

2. An isostatic press according to claim 1, characterized in that, The flow channel (T) has a first flow channel inlet (A1), a second flow channel inlet (A2), and a flow channel outlet (A3), and the flow channel (T) is connected to the high-pressure chamber (200) through the flow channel outlet (A3); The booster (300) and the high-pressure pump (400) are provided on the outside of at least one of the first flow channel inlet (A1) and the second flow channel inlet (A2), and the booster (300) is a single-stage booster.

3. An isostatic press according to claim 2, characterized in that, The booster (300) and the high-pressure pump (400) are respectively provided on the outside of the first flow channel inlet (A1) and the second flow channel inlet (A2); the booster (300) has a boosting state and a return state during operation; The booster (300) located outside the first flow channel inlet (A1) is the first booster, and the booster (300) located outside the second flow channel inlet (A2) is the second booster. When the first booster is in the boosting state, the second booster is in the return state.

4. An isostatic press according to claim 2, characterized in that, The crossbeam (10) has: a first side surface (11); a second side surface (12) connected to the first side surface (11); and two end faces (13) arranged opposite each other in a second direction (L2), the end faces (13) being connected to the first side surface (11) and the second side surface (12), the second direction (L2) being parallel to the thickness direction of the crossbeam (10); The flow channel (T) includes a first flow channel segment (T1) and a second flow channel segment (T2) that are interconnected. The second flow channel segment (T2) intersects with the first flow channel segment (T1). At least one of the flow channel openings of the first flow channel segment (T1) and the second flow channel segment (T2) is located on the second side surface (12), and the flow channel opening located on the second side surface (12) is the flow channel outlet (A3).

5. An isostatic press according to claim 4, characterized in that, The second flow channel segment (T2) extends along the first direction (L1), and one end of the flow channel segment (T2) is connected to the first flow channel segment (T1), while the other end of the flow channel segment is located on the second side surface (12). The first flow channel section (T1) and the second flow channel section (T2) form a T-shaped structure, and the first flow channel section (T1) is connected to the high-pressure chamber (200) via the second flow channel section (T2). The two ends of the flow channel of the first flow channel section (T1) are the first flow channel inlet (A1) and the second flow channel inlet (A2), respectively. The flow channel outlet (A3) of the second flow channel section (T2) located on the second side (12) is the flow channel outlet.

6. An isostatic press according to claim 5, characterized in that, The extension direction of the first flow channel segment (T1) is parallel to the second direction (L2), and the two end flow channel openings of the first flow channel segment (T1) are respectively located on a corresponding end face (13).

7. An isostatic press according to claim 5, characterized in that, The extension direction of the first flow channel segment (T1) is parallel to the third direction (L3), and the flow channel openings at both ends of the first flow channel segment (T1) are located on the first side surface (11). The third direction (L3) intersects with the second direction (L2) and the first direction (L1).

8. An isostatic press according to claim 4, characterized in that, The first flow channel segment (T1) and the second flow channel segment (T2) form a V-shaped structure, and one of the flow channel openings of the first flow channel segment (T1) and the second flow channel segment (T2) are located on the second side surface (12), and have overlapping portions on the second side surface (12); the other flow channel opening of the first flow channel segment (T1) and the second flow channel segment (T2) are located on the first side surface (11); The flow channels of the first flow channel segment (T1) and the second flow channel segment (T2) located on the first side (11) are the first flow channel inlet (A1) and the second flow channel inlet (A2), respectively, and the flow channels of the first flow channel segment (T1) and the second flow channel segment (T2) located on the second side (12) are the flow channel outlet (A3).

9. An isostatic press according to claim 2, characterized in that, The crossbeam (10) has: a first side surface (11); a second side surface (12) connected to both ends of the first side surface (11); and two end faces (13) arranged opposite to each other in a second direction (L2), the end faces (13) being connected to the first side surface (11) and the second side surface (12), the second direction (L2) being parallel to the thickness direction of the crossbeam (10); The flow channel (T) includes a third flow channel section (T3), a fourth flow channel section (T4), and a fifth flow channel section (T5). The third flow channel section (T3) and the fourth flow channel section (T4) form a V-shaped structure, and one of the flow channel openings of the third flow channel section (T3) and the fourth flow channel section (T4) has an overlapping portion, and the other flow channel opening of the third flow channel section (T3) and the fourth flow channel section (T4) is located on the first side surface (11); The fifth flow channel segment (T5) extends along the first direction (L1), and one end of the flow channel segment (T5) is connected to the third flow channel segment (T3) and the fourth flow channel segment (T4), while the other end of the flow channel segment is located on the second side surface (12). The flow channels of the third flow channel section (T3) and the fourth flow channel section (T4) located on the first side (11) are the first flow channel inlet (A1) and the second flow channel inlet (A2), respectively, and the flow channel of the fifth flow channel section (T5) located on the second side (12) is the flow channel outlet (A3).

10. A method for increasing the pressure of an isostatic press, characterized in that, Applied to the isostatic press according to any one of claims 1-9, the pressurization method includes: Control the high-pressure pump (400) to connect with the flow channel (T); The high-pressure pump (400) is controlled to pressurize the high-pressure chamber (200) through the flow channel (T) until the pressure inside the high-pressure chamber (200) reaches the first target pressure; Disconnect the connection between the high-pressure pump (400) and the flow channel (T), and control the connection between the booster (300) and the flow channel (T) and the connection between the high-pressure pump (400) and the booster (300); The high-pressure pump (400) and the booster (300) are controlled to operate to pressurize the high-pressure chamber (200) through the booster (300) and via the flow channel (T) until the pressure inside the high-pressure chamber (200) reaches the second target pressure.

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