CN216198875U - Diaphragm compressor - Google Patents
Diaphragm compressor Download PDFInfo
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- CN216198875U CN216198875U CN202122481264.1U CN202122481264U CN216198875U CN 216198875 U CN216198875 U CN 216198875U CN 202122481264 U CN202122481264 U CN 202122481264U CN 216198875 U CN216198875 U CN 216198875U
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Abstract
The utility model relates to the technical field of compressors and discloses a diaphragm compressor which comprises a cylinder sealing structure, wherein the cylinder sealing structure comprises a cylinder cover, a diaphragm and an oil distribution disc, the cylinder cover is provided with an installation cavity, the diaphragm is arranged in the installation cavity, and the diaphragm divides the installation cavity of the diaphragm into an oil cavity and an air cavity; the oil distribution disc is arranged in the installation cavity, the oil distribution disc is arranged in the oil cavity, the oil distribution disc is connected with the side wall of the installation cavity through a sealing ring, the roughness of the side wall of the installation cavity is not more than 0.8, the rigidity of the sealing ring is not less than 90HA, and the filling rate of the sealing ring in the installation cavity is 94%. The utility model provides a diaphragm compressor, which aims to achieve the purpose that a cylinder sealing structure has good sealing property.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a diaphragm compressor.
Background
At present, a diaphragm compressor is a reciprocating compressor which compresses and conveys gas by means of reciprocating motion of a diaphragm in a cylinder, and has the characteristics of large compression ratio, good sealing performance and no pollution of the compressed gas by lubricating oil and other solid impurities, so that the diaphragm compressor is suitable for compressing high-purity, rare, noble, flammable and explosive, toxic and harmful, strong in corrosivity and high-pressure gas.
According to understanding, diaphragm compressor includes cylinder seal structure, and cylinder seal structure includes cylinder cap, air inlet valve subassembly, discharge valve subassembly, diaphragm, joins in marriage food tray and air-vent valve subassembly, and air inlet valve subassembly and discharge valve subassembly are located same one side of cylinder cap, and the discharge valve subassembly is connected with joining in marriage the food tray through connecting, and the cylinder cap is equipped with the installation cavity that is used for installing the diaphragm and joins in marriage the food tray, and the diaphragm divide into oil pocket and air cavity with the installation cavity. When the diaphragm compressor works, in order to ensure that compressed gas can be completely discharged through the exhaust valve assembly, the pressure in the oil cavity is higher than that of the air cavity, and the pressure of hydraulic oil in the oil cavity is regulated by the pressure regulating valve assembly. However, because no reasonable sealing device is arranged between the existing oil distribution disc and the installation cavity, hydraulic oil in the oil cavity easily flows out from a gap between the oil distribution disc and the installation cavity, and the sealing performance of the cylinder sealing structure is poor.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the utility model provides a diaphragm compressor, which aims to achieve the purpose that a cylinder sealing structure has good sealing property.
In order to achieve the aim, the utility model provides a diaphragm compressor which comprises a cylinder sealing structure, wherein the cylinder sealing structure comprises a cylinder cover, a diaphragm and an oil distribution disc, the cylinder cover is provided with an installation cavity, the diaphragm is arranged in the installation cavity, and the diaphragm divides the installation cavity of the diaphragm into an oil cavity and an air cavity;
the oil distribution disc is arranged in the mounting cavity, the oil distribution disc is arranged in the oil cavity, the oil distribution disc is connected with the side wall of the mounting cavity through a sealing ring, the roughness of the side wall of the mounting cavity is not more than 0.8, and the rigidity of the sealing ring is not less than 90 HA.
In some embodiments of the present application, the sealing ring is provided in plurality.
In some embodiments of the present application, the packing ratio of the seal ring in the installation cavity is 92% to 96%.
In some embodiments of the present application, the packing rate of the seal ring in the mounting cavity is 94%.
In some embodiments of the present application, the roughness of the sidewalls of the mounting cavity is 0.8.
In some embodiments of the present application, the seal ring HAs a stiffness of 90 HA.
In some embodiments of the present application, the seal ring is annular.
In some embodiments of the present application, the seal ring is rubber.
The embodiment of the utility model provides a diaphragm compressor, which has the following beneficial effects compared with the prior art:
according to the diaphragm compressor provided by the embodiment of the utility model, the oil distribution disc is connected with the side wall of the mounting cavity through the sealing ring, so that hydraulic oil in the oil cavity is not easy to flow out from a gap between the oil distribution disc and the mounting cavity, and the air cylinder sealing structure has the advantage of good sealing property;
in addition, as the roughness of the side wall of the mounting cavity is not more than 0.8, the side wall of the mounting cavity is smooth, and the sealing ring is not easy to abrade with the inner wall of the mounting cavity in the process of contacting the sealing ring with the side wall of the mounting cavity, so that the service life of the sealing ring is ensured; moreover, because the rigidity of sealing washer is not less than 90HA, the sealing washer is receiving the extrusion back, and the sealing washer is difficult to take place to warp, and high-pressure hydraulic oil is difficult to follow and joins in marriage the clearance outflow between the lateral wall of food tray and installation cavity to effectively reduce the risk that cylinder seal structure took place to reveal.
Drawings
Fig. 1 is a schematic structural view of a diaphragm compressor according to an embodiment of the present invention.
In the figure, 1, a cylinder cover; 11. a gas side cylinder head body; 12. an oil side cylinder head body; 2. a membrane; 3. an oil distribution disc; 4. a mounting cavity; 41. an oil chamber; 42. an air cavity; 5. a seal ring; 6. an intake valve assembly; 7. a vent valve assembly; 8. a pressure regulating valve assembly.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In order to achieve the above object, as shown in fig. 1, an embodiment of the present invention provides a diaphragm compressor, which includes a cylinder sealing structure, the cylinder sealing structure includes a cylinder cover 1, an intake valve assembly 6, an exhaust valve assembly 7, a diaphragm 2, an oil distribution disc 3, and a pressure regulating valve assembly 8 connected to the oil distribution disc 3, the cylinder cover 1 includes an air-side cylinder cover body 11 and an oil-side cylinder cover body 12, the air-side cylinder cover body 11 is connected to the oil-side cylinder cover body 12, the intake valve assembly 6 and the exhaust valve assembly 7 are disposed on the air-side cylinder cover body 11, and the intake valve assembly 6 and the exhaust valve assembly 7 are located on the same side of the air-side cylinder cover body 11; the cylinder cover 1 is provided with an installation cavity 4, the diaphragm 2 is arranged in the installation cavity 4, and the installation cavity 4 of the diaphragm 2 is divided into an oil cavity 41 and an air cavity 42 by the diaphragm 2;
join in marriage the food tray 3 and locate in installation cavity 4, join in marriage the food tray 3 and locate in oil pocket 41, join in marriage and be connected through sealing washer 5 between the lateral wall of food tray 3 and installation cavity 4, the roughness of the lateral wall of installation cavity 4 is not more than 0.8, and the rigidity of sealing washer 5 is not less than 90 HA.
Based on the arrangement, the diaphragm compressor provided by the embodiment of the utility model is connected between the oil distribution disc 3 and the side wall of the mounting cavity 4 through the sealing ring 5, so that the hydraulic oil in the oil cavity 41 is not easy to flow out from the gap between the oil distribution disc 3 and the mounting cavity 4, and the cylinder sealing structure has the advantage of good sealing property;
in addition, because the roughness of the side wall of the mounting cavity 4 is not more than 0.8, the side wall of the mounting cavity 4 is smooth, and the sealing ring 5 is not easy to abrade with the inner wall of the mounting cavity 4 in the process that the sealing ring 5 is contacted with the side wall of the mounting cavity 4, so that the service life of the sealing ring 5 is ensured; moreover, because the rigidity of sealing washer 5 is not less than 90HA, sealing washer 5 is receiving the extrusion back, and sealing washer 5 is difficult to take place to warp, and high-pressure hydraulic oil is difficult to follow the clearance outflow between the lateral wall of joining in marriage food tray 3 and installation cavity 4 to effectively reduce the risk that cylinder seal structure took place to reveal.
In some embodiments, optionally, as shown in fig. 1, the sealing ring 5 is provided in plurality. Therefore, the plurality of seal rings 5 surround the oil chamber 41, so that the hydraulic oil cannot flow out from the gap between the oil distribution disc 3 and the side wall of the mounting chamber 4, and the sealing performance of the cylinder sealing structure is improved.
In some embodiments, optionally, tests show that when the filling rate of the seal ring 5 in the installation cavity 4 is less than 90%, because the seal ring 5 has certain elasticity, when the seal ring 5 cannot be restored to abut against the side wall of the installation cavity 4, hydraulic oil flows out from a gap between the seal ring 5 and the side wall of the installation cavity 4, in order to solve the technical problem, as shown in fig. 1, the filling rate of the seal ring 5 in the installation cavity 4 is 92% -96%, and therefore, the seal ring 5 can always abut against the side wall of the installation cavity 4, so that hydraulic oil cannot flow out from the gap between the seal ring 5 and the side wall of the installation cavity 4, and further the sealing performance of the cylinder sealing structure is improved;
the packing ratio of the sealing ring 5 in the installation space 4 is 94% by way of example.
In some embodiments, optionally, tests show that when the roughness of the side wall of the mounting cavity 4 is not less than 3.2, the sealing ring 5 is easily damaged after contacting with the mounting cavity 4 for multiple times, in order to avoid damage to the sealing ring 5 caused by the side wall of the mounting cavity 4, as shown in fig. 1, the roughness of the side wall of the mounting cavity 4 is 0.8, and in addition, the processing of the mounting cavity 4 is facilitated,
in some embodiments, optionally, as shown in fig. 1, it is found through tests that when the rigidity of the seal ring 5 is not greater than 75HA, the seal ring 5 is easily deformed during the abutting process of the seal ring 5 with the mounting cavity 4, hydraulic oil is easily flowed out from the gap between the seal ring 5 and the mounting cavity 4, in order to make it difficult for hydraulic oil to flow out from the gap between the seal ring 5 and the mounting cavity 4, the rigidity of the seal ring 5 is 90HA, and in addition, the processing of the seal ring 5 is facilitated,
in some embodiments, optionally, as shown in fig. 1, the gasket 5 is annular in shape to facilitate connection of the gasket 5 to the side wall of the mounting chamber 4 and the oil distribution pan 3.
In some embodiments, optionally, as shown in fig. 1, in order to provide good elastic properties to the sealing ring 5, the sealing ring 5 is made of rubber or silicone.
In summary, the diaphragm compressor of the embodiment of the utility model connects the oil distribution disc 3 and the side wall of the mounting cavity 4 through the sealing ring 5, so that the hydraulic oil in the oil cavity 41 is not easy to flow out from the gap between the oil distribution disc 3 and the mounting cavity 4, and the cylinder sealing structure has the advantage of good sealing performance;
in addition, because the roughness of the side wall of the mounting cavity 4 is not more than 0.8, the side wall of the mounting cavity 4 is smooth, and the sealing ring 5 is not easy to abrade with the inner wall of the mounting cavity 4 in the process that the sealing ring 5 is contacted with the side wall of the mounting cavity 4, so that the service life of the sealing ring 5 is ensured; moreover, because the rigidity of sealing washer 5 is not less than 90HA, sealing washer 5 is receiving the extrusion back, and sealing washer 5 is difficult to take place to warp, and hydraulic oil is difficult to flow from the clearance between the lateral wall of joining in marriage food tray 3 and installation cavity 4 to effectively reduce the risk that cylinder seal structure took place to reveal.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. A diaphragm compressor is characterized by comprising a cylinder sealing structure, wherein the cylinder sealing structure comprises a cylinder cover, a diaphragm and an oil distribution disc, the cylinder cover is provided with an installation cavity, the diaphragm is arranged in the installation cavity, and the diaphragm divides the installation cavity of the diaphragm into an oil cavity and an air cavity;
the oil distribution disc is arranged in the mounting cavity, the oil distribution disc is arranged in the oil cavity, the oil distribution disc is connected with the side wall of the mounting cavity through a sealing ring, the roughness of the side wall of the mounting cavity is not more than 0.8, and the rigidity of the sealing ring is not less than 90 HA.
2. The diaphragm compressor of claim 1, wherein the sealing ring is provided in plurality.
3. The diaphragm compressor of claim 1, wherein the packing ratio of the sealing ring in the mounting cavity is 92% -96%.
4. The diaphragm compressor of claim 3, wherein the packing ratio of the seal ring in the mounting cavity is 94%.
5. The diaphragm compressor of claim 1, wherein the side wall of the mounting cavity has a roughness of 0.8.
6. The diaphragm compressor of claim 1, wherein the stiffness of the sealing ring is 90 HA.
7. The diaphragm compressor of claim 1, wherein the sealing ring is annular.
8. The diaphragm compressor of claim 1, wherein the seal ring is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481264.1U CN216198875U (en) | 2021-10-14 | 2021-10-14 | Diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481264.1U CN216198875U (en) | 2021-10-14 | 2021-10-14 | Diaphragm compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216198875U true CN216198875U (en) | 2022-04-05 |
Family
ID=80866659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122481264.1U Active CN216198875U (en) | 2021-10-14 | 2021-10-14 | Diaphragm compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216198875U (en) |
-
2021
- 2021-10-14 CN CN202122481264.1U patent/CN216198875U/en active Active
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