Exhaust valve for compressor

Abstract

The exhaust valve for the compressor belongs to the technical field of compressors and comprises a valve body, a valve cover is arranged at the top end of the valve body, an exhaust channel is arranged in the middle of the valve body, a plurality of exhaust openings are formed in the top end of the valve cover, and an air bag column and a supporting spring are fixedly installed in the middle of the inner wall of the top end of the valve cover. And moving discs are fixedly mounted at the tail ends of the airbag columns and the supporting springs. The air valve block slides along the guide pieces along with the movable disc and slides along the prisms along with the guide sleeve, so that the air valve block is far away from the exhaust channel in the reciprocating exhaust process of the exhaust valve of the compressor, and air is exhausted; the air valve block vertically moves downwards in the resetting process through magnetic repulsion of the air bag column, the supporting spring, the top end of the guide sleeve and the bottom end of the limiting piece, the prisms in each row are slidably connected with the guide sleeve in a sleeving mode, so that the air valve block cannot deviate in the resetting process, and then an exhaust channel is accurately sealed when the air valve block is reset.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to an exhaust valve for a compressor. Background Technology

[0002] A compressor is a driven fluid machine that elevates low-pressure gas to high-pressure gas; it is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it, and discharges high-temperature, high-pressure refrigerant gas through the discharge pipe, providing power for the refrigeration cycle. The discharge valve is one of the key components of a reciprocating compressor, and its design significantly impacts the compressor's efficiency, vibration, noise, and reliability.

[0003] A search revealed a patent with publication number CN222436558U entitled "A Compressor Exhaust Valve." The technical problem it addresses is that existing compressor exhaust valves are mostly connected to the compressor's air pipe using multiple bolts. This connection method is cumbersome and time-consuming, making installation and disassembly difficult. Furthermore, traditional exhaust valves are mostly one-piece structures, making it difficult to disassemble and replace the internal valve plate, spring, and lift limiter. In case of failure, the entire exhaust valve needs to be replaced, resulting in high operating costs and resource waste. The patent addresses this issue by using a threaded cover, valve plate, first spring, and lift limiter... The coordinated action of the lift limiter, retaining ring, retaining groove, connecting rod, sliding plate, connecting plate, and second spring allows for quick assembly and disassembly of the valve body and connecting pipe. This improves the installation efficiency of this type of exhaust valve and facilitates subsequent disassembly. It also allows for rapid separation of the valve plate, first spring, and lift limiter from the valve body, which is beneficial for subsequent maintenance and replacement, avoiding the need to replace the entire exhaust valve in case of failure, thus saving resources and reducing operating costs. However, the following drawbacks still need to be addressed: the valve plate is prone to misalignment after long-term use, leading to insufficient airtightness of the compressor. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an exhaust valve for compressors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An exhaust valve for a compressor includes a valve body, a valve cover at the top of the valve body, an exhaust passage in the middle of the valve body, and multiple exhaust openings at the top of the valve cover. An air bladder column and a support spring are fixedly installed in the middle of the inner wall of the top of the valve cover, and a movable disc is fixedly installed at the ends of the air bladder column and the support spring. Multiple guide members at equal angles are fixedly installed on the inner wall of the top of the valve cover, and the movable disc is slidably sleeved with the multiple guide members. A connecting cylinder is fixedly installed in the middle of the bottom of the movable disc, and a valve plate is fixedly installed at the bottom of the connecting cylinder. Multiple guide sleeves at equal angles are fixedly installed at the top of the outer circumference of the valve plate. A cylindrical protrusion is provided in the middle of the bottom of the valve plate, and a rubber sealing ring is fixedly installed on the outer side of the bottom of the valve plate. An annular groove is provided at the top of the valve body, and multiple prisms at equal angles are fixedly installed at the top of the valve body, with limit plates fixedly connected to the tops of the prisms. Each row of prisms is slidably sleeved with the guide sleeves, and the annular groove matches the rubber sealing ring.

[0007] Preferably, the outer side of the top outer wall of the valve body is provided with multiple threaded holes at equal angles, and the outer side of the top outer wall of the valve cover is provided with multiple connecting channels at equal angles, and each row of threaded holes and connecting channels is connected by bolts.

[0008] Preferably, the center of the airbag column coincides with the center of the support spring and the multiple guide members, and the airbag column, the support spring and the multiple guide members are sequentially sleeved from the inside to the outside.

[0009] Preferably, the diameter of the exhaust channel is smaller than the diameter of the valve plate, and the exhaust channel is fitted with the cylindrical protrusion.

[0010] Preferably, the annular groove is located on the outer side of the top of the exhaust channel, and the plurality of prisms are located on the outer side of the annular groove.

[0011] Preferably, the valve body has an inlet pipe at the bottom of one side of the circumference and an outlet pipe at the top of one end of the circumference. A spiral channel is formed inside the circumference of the valve body, and the spiral channel is connected to the inlet pipe and the outlet pipe.

[0012] Preferably, each of the guide members has a spherical protrusion at its bottom end, and the top end of the guide sleeve and the bottom end of the limiting piece are magnetically repelled.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The present invention proposes a compressor exhaust valve, in which the valve plate slides along multiple guide members with the moving disc, and slides along multiple prisms with the guide sleeve. This allows the valve plate to move away from the exhaust channel during the reciprocating exhaust process of the compressor exhaust valve, thus venting the gas. During the reset process, the valve plate moves vertically downward due to the magnetic repulsion between the air bladder column, the support spring, the top of the guide sleeve, and the bottom of the limiting plate. Furthermore, the sliding engagement of each column of prisms with the guide sleeve prevents the valve plate from shifting during the reset process, thereby ensuring that the valve plate accurately seals the exhaust channel when it resets.

[0015] 2. The present invention proposes an exhaust valve for a compressor, which matches an annular groove with a rubber sealing ring, has an exhaust channel diameter smaller than the valve plate diameter, and an exhaust channel that matches and sleeves a cylindrical protrusion, ensuring the sealing effect of the exhaust channel after the valve plate is reset. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an exhaust valve for a compressor proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a compressor exhaust valve body proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a movable disk for a compressor exhaust valve proposed in this utility model;

[0019] Figure 4 This is a bottom view of the structure of the exhaust valve plate for a compressor proposed in this utility model.

[0020] In the diagram: 1 Valve body, 2 Exhaust channel, 3 Annular groove, 4 Prism, 5 Limiting plate, 6 Threaded insertion hole, 7 Inlet pipe, 8 Drain pipe, 9 Valve cover, 10 Connecting channel, 11 Exhaust opening, 12 Airbag column, 13 Support spring, 14 Guide component, 15 Moving disc, 16 Connecting cylinder, 17 Air valve plate, 18 Guide sleeve, 19 Cylindrical protrusion, 20 Rubber sealing ring. Detailed Implementation

[0021] Reference Figure 1-4A compressor exhaust valve includes a valve body 1, a valve cover 9 at the top of the valve body 1, an exhaust passage 2 in the middle of the valve body 1, and multiple exhaust openings 11 at the top of the valve cover 9. An air bladder column 12 and a support spring 13 are fixedly installed in the middle of the inner wall of the top of the valve cover 9, and a movable disc 15 is fixedly installed at the ends of the air bladder column 12 and the support spring 13. Multiple guide members 14 at equal angles are fixedly installed in the inner wall of the top of the valve cover 9, and the movable disc 15 is slidably sleeved with the multiple guide members 14. A connecting cylinder is fixedly installed in the middle of the bottom end of the movable disc 15. 16, and a valve plate 17 is fixedly installed at the bottom of the connecting cylinder 16. Multiple guide sleeves 18 with equal angles are fixedly provided at the top of the outer circumference of the valve plate 17. A cylindrical protrusion 19 is provided in the middle of the bottom end of the valve plate 17. A rubber sealing ring 20 is fixedly provided on the outer side of the bottom end of the valve plate 17. An annular groove 3 is provided at the top of the valve body 1. Multiple prisms 4 with equal angles are fixedly installed at the top of the valve body 1. A limit piece 5 is fixedly connected to the top of the prism 4. Each row of prisms 4 is slidably sleeved with the guide sleeve 18. The annular groove 3 matches the rubber sealing ring 20.

[0022] In this utility model, the outer side of the top outer wall of the valve body 1 is provided with a plurality of threaded insertion holes 6 at equal angles, and the outer side of the top outer wall of the valve cover 9 is provided with a plurality of connecting channels 10 at equal angles. Each row of threaded insertion holes 6 and connecting channels 10 are connected by bolts, thereby fixing the valve body 1 and the valve cover 9 in place.

[0023] The center of the airbag column 12 coincides with the center of the support spring 13 and the multiple guide members 14, and the airbag column 12, the support spring 13 and the multiple guide members 14 are sequentially sleeved from the inside to the outside.

[0024] The diameter of the exhaust passage 2 is smaller than the diameter of the valve plate 17, and the exhaust passage 2 is matched and sleeved with the cylindrical protrusion 19.

[0025] The annular groove 3 is located on the outer side of the top of the exhaust channel 2, and multiple prisms 4 are located on the outer side of the annular groove 3;

[0026] A liquid inlet pipe 7 is provided at the bottom of one side of the valve body 1, and a liquid outlet pipe 8 is provided at the top of one end of the valve body 1. A spiral channel is provided inside the circumference of the valve body 1. The spiral channel is connected to the liquid inlet pipe 7 and the liquid outlet pipe 8, and coolant can be introduced into the spiral channel to help the valve body 1 cool down quickly.

[0027] Each guide member 14 has a spherical protrusion at its bottom end, and the top end of the guide sleeve 18 and the bottom end of the limiting piece 5 are magnetically repelled.

[0028] Working principle: The valve plate 17 slides along multiple guide members 14 with the moving disk 15, and slides along multiple prisms 4 with the guide sleeve 18. This allows the valve plate 17 to move away from the exhaust channel 2 during the reciprocating exhaust process of the compressor exhaust valve, so that the gas is discharged. The magnetic repulsion between the top of the air bag column 12, the support spring 13, and the bottom of the limit plate 5 causes the valve plate 17 to move vertically downward during the reset process. Furthermore, the sliding engagement between each column of prisms 4 and the guide sleeve 18 prevents the valve plate 17 from shifting during the reset process, thereby ensuring that the valve plate 17 accurately seals the exhaust channel 2 when it resets.

[0029] The exhaust channel 2 is smaller in diameter than the valve plate 17 by matching the annular groove 3 with the rubber sealing ring 20. The exhaust channel 2 is matched and sleeved with the cylindrical protrusion 19 to ensure the sealing effect of the exhaust channel 2 after the valve plate 17 is reset.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A compressor exhaust valve, comprising a valve body (1), a valve cover (9) provided at the top of the valve body (1), an exhaust passage (2) provided in the middle of the valve body (1), and a plurality of exhaust openings (11) provided at the top of the valve cover (9), characterized in that, An airbag column (12) and a support spring (13) are fixedly installed in the middle of the inner wall of the top of the valve cover (9), and a movable disk (15) is fixedly installed at the end of the airbag column (12) and the support spring (13). Multiple guide members (14) with equal angles are fixedly installed in the inner wall of the top of the valve cover (9), and the movable disk (15) is slidably sleeved with the multiple guide members (14). A connecting cylinder (16) is fixedly installed in the middle of the bottom of the movable disk (15), and a valve plate (17) is fixedly installed in the bottom of the connecting cylinder (16). The valve plate (17) is circular. Multiple guide sleeves (18) with equal angles are fixedly provided at the top of the outer wall. A cylindrical protrusion (19) is provided in the middle of the bottom end of the valve plate (17). A rubber sealing ring (20) is fixedly provided on the outer side of the bottom end of the valve plate (17). An annular groove (3) is provided at the top of the valve body (1). Multiple prisms (4) with equal angles are fixedly installed at the top of the valve body (1). A limiting piece (5) is fixedly connected to the top of the prism (4). Each column of prisms (4) is slidably sleeved with the guide sleeve (18). The annular groove (3) matches the rubber sealing ring (20).

2. The compressor exhaust valve according to claim 1, characterized in that, The valve body (1) has multiple threaded holes (6) at equal angles on the outer side of the top outer wall, and the valve cover (9) has multiple connecting channels (10) at equal angles on the outer side of the top outer wall, and each row of threaded holes (6) and connecting channels (10) are connected by bolts.

3. The compressor exhaust valve according to claim 1, characterized in that, The center of the airbag column (12) coincides with the center of the support spring (13) and the multiple guide members (14), and the airbag column (12), the support spring (13) and the multiple guide members (14) are sequentially connected from the inside to the outside.

4. The compressor exhaust valve according to claim 1, characterized in that, The diameter of the exhaust passage (2) is smaller than the diameter of the valve plate (17), and the exhaust passage (2) is matched and sleeved with the cylindrical protrusion (19).

5. A compressor exhaust valve according to claim 4, characterized in that, The annular groove (3) is located on the outside of the top of the exhaust channel (2), and multiple prisms (4) are located on the outside of the annular groove (3).

6. A compressor exhaust valve according to claim 1, characterized in that, The valve body (1) has an inlet pipe (7) at the bottom of one side of its circumference and a drain pipe (8) at the top of one end of its circumference. A spiral channel is provided inside the circumference of the valve body (1), and the spiral channel is connected to the inlet pipe (7) and the drain pipe (8).

7. A compressor exhaust valve according to claim 1, characterized in that, Each of the guide members (14) has a spherical protrusion at its bottom end, and the top end of the guide sleeve (18) and the bottom end of the limiting piece (5) are magnetically repelled.

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