Long connector filtering structure for compressor follow-up valve

Abstract

The utility model discloses a long joint filtering structure for a compressor follow-up valve, which relates to the technical field of follow-up valve filtering structures and comprises a follow-up valve body, a long joint is mounted at a liquid inlet of the follow-up valve body, and the lower portion of the long joint is mounted in a mounting groove at the top of a liquid outlet of a cylinder head. A filtering hole plate is installed at the bottom of the long connector, and a through hole communicated with the liquid inlet of the follow-up valve body is formed in the long connector. Large-particle scrap iron in lubricating oil brought from the cylinder head can be filtered through the filtering pore plate, the scrap iron is prevented from damaging a diaphragm in the follow-up valve component, the performance of the follow-up valve is guaranteed, the service life of the follow-up valve is prolonged, in addition, the long connector is connected with the follow-up valve body and the cylinder head in a threaded connection mode, overall installation is simple, and the cost is low. Disassembly is convenient, and maintenance and replacement are easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to a follow -up valve filter structure's technical field, concretely relates to a long nipple filter structure for compressor follow -up valve. BACKGROUND

[0002] The diaphragm compressor is also called a membrane compressor, is a type of reciprocating compressor in the displacement compressor, adopts the hydraulic drive diaphragm, is composed of hydraulic system and gas compression system, and the piston moving in the positive direction makes the hydraulic oil impact the bottom of the diaphragm, extrudes the cavity and discharges process gas.The metal diaphragm is clamped between two high-precision clamps, the periphery is sealed and rolled and fastened with bolts, has good sealing property, the gas cavity part in the membrane cavity does not need lubrication, so that the compressed gas is not polluted, and high-pressure compression can be realized.The diaphragm compressor has been widely applied in laboratory research, petroleum and gas industry, chemical industry, metallurgical industry, pharmaceutical industry and electric power industry.

[0003] The follow -up valve part of the diaphragm compressor is a key component, and the service life influences the use experience of the whole compressor.A key factor influencing the service life of the follow -up valve is the cleanliness of the lubricating oil entering the inside of the follow -up valve, and if there are large particles of iron filings in the inside of the lubricating oil, the diaphragm in the inside of the follow -up valve can be damaged, the diaphragm is directly broken in serious cases, the follow -up valve is failed, and the compressor is shut down for maintenance. SUMMARY

[0004] The utility model aims at providing a long nipple filter structure for compressor follow -up valve to overcome the above-mentioned defects in the prior art.

[0005] A long nipple filter structure for compressor follow -up valve, including follow -up valve body, the long nipple is installed at the liquid inlet of follow -up valve body, the lower part of long nipple is installed in the installation groove on the top of the liquid outlet of cylinder head, the bottom of long nipple is installed with filter hole plate, and the through -hole in communication with the liquid inlet of follow -up valve body is arranged in long nipple.

[0006] Preferably, the filter hole plate is arranged in the limiting groove at the bottom of the long nipple.

[0007] Preferably, the diameter of the filter hole plate is greater than the diameter of the liquid outlet of the cylinder head.

[0008] Preferably, the long nipple is threadedly connected with the inner wall of the liquid inlet of the follow -up valve body.

[0009] Preferably, the long nipple is threadedly connected with the inner wall of the installation groove.

[0010] The utility model reaches the beneficial effects that:

[0011] The application can filter large iron filings in lubricating oil brought from the cylinder head through the filter hole plate, prevent the iron filings from damaging the diaphragm in the servo valve component, ensure the performance of the servo valve, and prolong the service life of the servo valve. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a partial sectional view of the utility model.

[0013] Figure 2 It is a sectional view of the long connector of the utility model.

[0014] Figure 3 It is Figure 2 It is a structural view along the direction of A-A.

[0015] In the figure, 1, servo valve body; 2, long connector; 21, through hole; 22, limiting groove; 3, cylinder head; 31, liquid outlet; 32, mounting groove; 4, filter hole plate. DETAILED DESCRIPTION

[0016] The utility model is further explained in detail through the description of the embodiments with reference to the drawings, so as to help the skilled in the art to have a more complete, accurate and deep understanding of the conception and technical scheme of the utility model.

[0017] As Figures 1-3 The utility model provides a long connector filter structure for compressor servo valve, including servo valve body 1, the liquid inlet of servo valve body 1 is installed with long connector 2, the lower part of long connector 2 is installed in the mounting groove 32 of the top of the liquid outlet 31 of cylinder head 3, the bottom of long connector 2 is installed with filter hole plate 4, and the through hole 21 that is communicated with the liquid inlet of servo valve body 1 is equipped in long connector 2.

[0018] In addition, the filter hole plate 4 is arranged in the limiting groove 22 at the bottom of the long connector 2, which facilitates the removal of the filter hole plate 4 from the long connector 2, and the diameter of the filter hole plate 4 is greater than that of the liquid outlet 31 of the cylinder head 3, so as to prevent the filter hole plate 4 from entering the liquid outlet 31 of the cylinder head 3;

[0019] The long connector 2 is threadedly connected with the inner wall of the liquid inlet of the servo valve body 1, and the long connector 2 is threadedly connected with the inner wall of the mounting groove 32, so as to facilitate the disassembly and assembly of the long connector 2 with the servo valve body 1 and the cylinder head 3.

[0020] In use, the lubricating oil in the cylinder head 3 enters the filter holes on the filter hole plate 4 through the outlet 31 on the cylinder head 3, the large iron filings in the lubricating oil are filtered by the filter holes on the filter hole plate 4, and the filtered lubricating oil enters the liquid inlet of the follow-up valve body 1 through the through hole 21 of the long connector 2.

[0021] In summary, the application can filter the large iron filings in the lubricating oil brought from the cylinder head 3 through the filter hole plate 4, prevent the iron filings from damaging the diaphragm in the follow-up valve part, ensure the performance of the follow-up valve, and improve the service life of the follow-up valve. In addition, the long connector 2 is connected with the follow-up valve body 1 and the cylinder head 3 in a threaded connection manner, so that the overall installation is simple, the disassembly is convenient, and the maintenance and replacement are easy.

[0022] The above-mentioned embodiments of the present application do not constitute a limitation on the protection scope of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A long nipple filter structure for a compressor follow-up valve, comprising a follow-up valve body (1), characterized in that: The long connector (2) is installed at the liquid inlet of the follow-up valve body (1), the lower part of the long connector (2) is installed in the installation groove (32) at the top of the liquid outlet (31) of the cylinder head (3), the bottom of the long connector (2) is provided with a filter hole plate (4), and the through hole (21) in the long connector (2) is communicated with the liquid inlet of the follow-up valve body (1).

2. The long nipple filter structure for a compressor follow valve according to claim 1, characterized in that: The filter hole plate (4) is arranged in the limiting groove (22) at the bottom of the long connector (2).

3. The long nipple filter structure for a compressor follow valve according to claim 1, characterized in that: The diameter of the filter hole plate (4) is greater than that of the liquid outlet (31) of the cylinder head (3).

4. The long nipple filter structure for a compressor follow valve according to claim 1, characterized in that: The long connector (2) is screw-connected with the inner wall of the liquid inlet of the follow-up valve body (1).

5. The long nipple filter structure for a compressor follow valve according to claim 1, characterized in that: The long connector (2) is screw-connected with the inner wall of the installation groove (32).

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