Cooling device and hydraulic piston type hydrogen compressor thereof

Abstract

The utility model provides a cooling device and a hydraulic piston type hydrogen compressor thereof, and belongs to the technical field of compressors. The technical problem that when the compressor does not work, the compressor is cooled, and resources are wasted is solved. Comprising a compression part, a cooling part, a hydraulic column, a pushing part, a passing hole, a control assembly and a cooling assembly, the cooling part is an annular cavity filled with a heat exchange medium to surround a compression chamber, and when the compression chamber works, heat energy is transferred into the heat exchange medium in the cooling part; in the compression process, a hydraulic column pushes a pushing part to push a heated heat exchange medium in a cooling part into a cooling assembly for cooling, meanwhile, the cooled heat exchange medium is pushed into the cooling part and stored between the pushing part and a liquid inlet hole, and the cooling part is filled with the cooled heat exchange medium after the hydraulic column is reset. And medium replacement is carried out in the compression process, so that resource waste caused by the fact that the compressor is cooled when the compressor does not work can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a cooling device and its hydraulic piston hydrogen compressor. Background Technology

[0002] The hydrogen compressor is a key component of a hydrogen refueling station, which compresses hydrogen gas. The compressed hydrogen can then be used to refuel fuel cell vehicles or stored in high-pressure hydrogen storage tanks (or reservoirs). However, during the compression process, the compressor's temperature rises sharply, which can easily lead to hydrogen leakage and reduce the compressor's operational reliability.

[0003] Existing solutions utilize cooling devices to continuously cool the compressor, which wastes resources when the compressor is not in operation. Utility Model Content

[0004] In view of this, the present invention aims to propose a cooling device and its hydraulic piston hydrogen compressor to solve the technical problem of resource waste caused by cooling the compressor when it is not working.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: According to one aspect of the present invention, a cooling device is provided, comprising:

[0006] The cooling section is an annular cavity located inside the compression section, surrounding the compression chamber;

[0007] The pushing part is slidably disposed inside the cooling part and connected to the hydraulic column;

[0008] The passage extends axially through the hole, and the pushing part is provided with a control component for controlling the switch of the passage hole.

[0009] During the compression stroke of the hydraulic column, the control component controls the orifice to close; during the reset stroke of the hydraulic column, the control component controls the orifice to open.

[0010] The cooling component is connected to the cooling section, and the cooling component and the cooling section circulate a heat exchange medium.

[0011] Furthermore, the control component is a baffle hinged to the end face of the pusher away from the hydraulic column, and the baffle covers the through hole.

[0012] Furthermore, the hinge point of the control component is located above the rotating end.

[0013] Furthermore, the end face of the pushing part away from the hydraulic column is provided with a receiving hole for accommodating the control component, and the receiving hole is connected to the through hole.

[0014] Furthermore, the pushing part is connected to a hydraulic column via a quick-release mechanism.

[0015] Furthermore, the quick-release mechanism includes a quick-release component and a connecting rod. The quick-release mechanism is mounted on a hydraulic column and is connected to the pushing part via the connecting rod.

[0016] Furthermore, the quick-release assembly includes a connecting seat fitted onto a hydraulic column. The connecting seat has an annular groove inside and an opening communicating with the annular groove. A limiting block that can pass through the opening is mounted on the hydraulic column. The connecting seat is connected to the pushing part via a connecting rod.

[0017] Furthermore, the end face of the compression section away from the hydraulic column is provided with an outlet hole and the end face away from the hydraulic column is provided with an inlet hole. The outlet hole and the inlet hole are connected through the cooling section and are connected through a connecting pipe and a cooling assembly.

[0018] Furthermore, the heat exchange medium is water.

[0019] According to another aspect of the present invention, a hydraulic piston hydrogen compressor is provided, including the cooling device described above.

[0020] Beneficial effects:

[0021] The cooling section is an annular cavity filled with heat exchange medium surrounding the compression chamber. When the compression chamber is working, heat energy is transferred to the heat exchange medium inside the cooling section. During compression, the hydraulic column pushes the pusher to push the heated heat exchange medium inside the cooling section into the cooling assembly for cooling. At the same time, it also pushes the cooled heat exchange medium into the cooling section and stores it between the pusher and the inlet. After the hydraulic column resets, it fills the cooling section again. Changing the medium during compression can avoid wasting resources by cooling the compressor when it is not working. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of a cooling device according to the present invention;

[0024] Figure 2 A cross-sectional view of a cooling device according to this utility model. Figure 1 ;

[0025] Figure 3 A cross-sectional view of a cooling device according to this utility model. Figure 2 ;

[0026] Figure 4 This is a partial structural diagram of a cooling device according to the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram A (partial enlargement).

[0028] Compression section 1; Cooling section 2; Hydraulic column 3; Pushing section 4; Through hole 5; Control component 6; Liquid outlet 7; Liquid inlet 8; Connecting pipe 9; Cooling component 10; Connecting seat 11; Annular groove 12; Opening 13; Connecting rod 14; Limiting block 15. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0030] It should be noted that the descriptions of "left," "right," "left side," "right side," "upper part," "lower part," "top," and "bottom" in this utility model are defined based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and are not intended to indicate or imply that the described structure must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0031] In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Referring to the accompanying drawings, this embodiment provides a cooling device according to one aspect of the present invention, comprising:

[0033] Cooling section 2 is an annular cavity disposed inside compression section 1, surrounding the compression chamber;

[0034] The pushing part 4 is an arc-shaped pushing ring, which is coupled to the annular cavity and is slidably disposed inside the cooling part 2 and connected to the hydraulic column 3;

[0035] The pusher part 4 passes through the hole 5 and is axially connected. The pusher part 4 is provided with a control component 6 for controlling the switch of the hole 5.

[0036] During the compression stroke of the hydraulic column 3, the control component 6 controls the through hole 5 to close; during the reset stroke of the hydraulic column 3, the control component 6 controls the through hole 5 to open.

[0037] Cooling component 10 is connected to cooling section 2. Cooling component 10 and cooling section 2 circulate heat exchange medium, wherein the heat exchange medium can be water or other media.

[0038] The cooling section 2 is an annular cavity filled with heat exchange medium surrounding the compression chamber. When the compression chamber is working, heat energy is transferred to the heat exchange medium inside the cooling section 2. During the compression process, the hydraulic column 3 pushes the pusher 4 to push the heated heat exchange medium inside the cooling section 2 into the cooling assembly 10 for cooling. At the same time, it pushes the cooled heat exchange medium into the cooling section 2 and stores it between the pusher 4 and the liquid inlet 8. After the hydraulic column 3 resets, it fills the cooling section 2 again. Changing the medium during the compression process can avoid wasting resources by cooling the compressor when it is not working.

[0039] In this embodiment, the control component 6 is a baffle hinged to the end face of the push part 4 away from the hydraulic column 3. The baffle covers the through hole 5. The hinge point of the control component 6 is above the rotating end. The end face of the push part 4 away from the hydraulic column 3 is provided with a receiving hole for receiving the control component 6. The receiving hole and the through hole 5 are connected. When the compressor compresses, the push part 4 moves, and the direction of movement causes the control component 6, which is the baffle, to enter the receiving hole and close the through hole 5, so that the heated medium cannot mix with the newly added medium. In addition, the receiving hole allows the heated medium to be discharged as much as possible into the cooling part 2 of the annular cavity.

[0040] In this embodiment, the pushing part 4 is connected to the hydraulic column 3 via a quick-release mechanism. The quick-release mechanism includes a quick-release component and a connecting rod 14. The quick-release mechanism is mounted on the hydraulic column 3 and is connected to the pushing part 4 via the connecting rod 14. The quick-release component includes a connecting seat 11 fitted onto the hydraulic column 3. The connecting seat 11 has an annular groove 12 inside and an opening 13 communicating with the annular groove 12. A limiting block 15 that can pass through the opening 13 is mounted on the hydraulic column 3. The connecting seat 11 is connected to the pushing part 4 via the connecting rod 14.

[0041] Rotate the hydraulic column 3 to make the limiting block 15 rotate together. When the limiting block 15 and the opening 13 are aligned, the limiting block 15 enters the annular groove 12. Then rotate the hydraulic column 3 again to make the limiting block 15 and the opening 13 staggered for quick assembly. When disassembling, align the opening 13 and the limiting block 15 to remove the connecting seat 11 from the hydraulic column 3.

[0042] In this embodiment, the end face of the compression section 1 away from the hydraulic column 3 is provided with an outlet hole 7 and an inlet hole 8. The outlet hole 7 and the inlet hole 8 are connected through the cooling section 2 and are connected to the cooling assembly 10 through a connecting pipe 9.

[0043] In this embodiment, a hydraulic reciprocating hydrogen compressor includes the aforementioned cooling device.

[0044] The sensors, controllers, and control programs mentioned above are all existing technologies and will not be elaborated upon.

[0045] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A cooling device, characterized in that, include: The cooling section (2) is an annular cavity arranged inside the compression section (1) surrounding the compression chamber; The pusher (4) is slidably disposed inside the cooling part (2) and connected to the hydraulic column (3); Through the hole (5), the push part (4) is axially penetrated, and the push part (4) is provided with a control component (6) for controlling the switch of the through hole (5); When the hydraulic column (3) is in its compression stroke, the control component (6) controls the through hole (5) to close; when the hydraulic column (3) is in its reset stroke, the control component (6) controls the through hole (5) to open. The cooling component (10) is connected to the cooling section (2), and the cooling component (10) and the cooling section (2) circulate heat exchange medium.

2. The cooling device according to claim 1, characterized in that: The control component (6) is a baffle hinged to the end face of the push part (4) away from the hydraulic column (3), and the baffle covers the through hole (5).

3. The cooling device according to claim 2, characterized in that: The hinge point of the control component (6) is above the rotating end.

4. A cooling device according to claim 3, characterized in that: The pusher (4) has a receiving hole on its end face away from the hydraulic column (3) for receiving the control component (6), and the receiving hole is connected to the through hole (5).

5. A cooling device according to claim 1, 2, 3 or 4, characterized in that: The pusher (4) is connected to the hydraulic column (3) via a quick-release mechanism.

6. A cooling device according to claim 5, characterized in that: The quick-release mechanism includes a quick-release component and a connecting rod (14). The quick-release mechanism is mounted on the hydraulic column (3) and is connected to the pusher (4) via the connecting rod (14).

7. A cooling device according to claim 6, characterized in that: The quick-release assembly includes a connecting seat (11) fitted on a hydraulic column (3). The connecting seat (11) has an annular groove (12) inside and an opening (13) communicating with the annular groove (12) on the connecting seat (11). A limiting block (15) that can pass through the opening (13) is set on the hydraulic column (3). The connecting seat (11) is connected to the pushing part (4) through a connecting rod (14).

8. A cooling device according to claim 1, characterized in that: The compression section (1) has an outlet hole (7) on the end face away from the hydraulic column (3) and an inlet hole (8) on the end face away from the hydraulic column (3). The outlet hole (7) and the inlet hole (8) are connected through the cooling section (2). The outlet hole (7) and the inlet hole (8) are connected through the connecting pipe (9) and the cooling component (10).

9. A cooling device according to claim 1, characterized in that: The heat exchange medium is water.

10. A hydraulic reciprocating hydrogen compressor, characterized in that: Includes the cooling device as described in claims 1, 2, 3, 4, 6, 7, 8 or 9.

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