Reciprocating compressor body breathing cap

Abstract

The utility model relates to the technical field of compressor equipment, and particularly discloses a reciprocating compressor body breathing cap which comprises a base, an oil filter, a breathing ring, an oil-gas separation conical cap and a gas blocking cap. The base comprises a breathing tube and an oil tray, the lower portion of the breathing tube is connected with a compressor body, the oil tray is arranged in the middle of the breathing tube in the vertical direction, and an annular containing space is formed between the oil tray and the breathing tube. The oil filter can preliminarily filter gas exhausted from the compressor body; the breathing ring provides a channel for gas exhaust; the oil-gas separation conical cap is used for buffering exhausted gas and changing the gas flow direction; and the air blocking cap and the oil tray of the base form an air flow channel to prevent oil splashing during exhaust. According to the oil-gas separation device, most of oil in exhausted gas can be separated through the oil filter and the oil-gas separation conical cap, the oil which is not completely separated can be collected by the oil tray, and oil-containing gas cannot be exhausted into the atmosphere, so that the oil-gas separation device conforms to environmental protection specifications, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor equipment, in particular to a reciprocating compressor body breathing cap device. Background Art

[0002] During the operation of a reciprocating compressor, in order to prevent the oxidation of the lubricating oil in the compressor body, nitrogen is usually passed into the compressor body, and the gas is continuously discharged through the breathing cap.

[0003] Traditional compressor breathing caps are accompanied by a certain amount of lubricating oil while discharging gas. Over time, the compressor body will be covered with oil stains, which does not meet environmental protection standards and has certain safety hazards. Utility Model Content

[0004] In order to solve the problem in the prior art that the exhaust of the reciprocating compressor body is accompanied by lubricating oil, causing oil stains to adhere to the surface of the compressor body, the utility model discloses a reciprocating compressor body breathing cap, which can separate oil and gas, and block the discharge of lubricating oil while exhausting the gas. A small amount of lubricating oil that passes through the oil-gas separation device with the gas will be stored through a gas flow channel with a certain structure and will not be discharged into the atmospheric environment.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a reciprocating compressor body breathing cap, which includes: a base, an oil filter, a breathing ring, an oil-gas separation conical cap, and an air blocking cap; the base includes: a breathing tube and an oil tray, the breathing tube is connected to the compressor body below, the oil tray is arranged in the middle position of the breathing tube in the vertical direction, and an annular accommodating space is formed between the oil tray and the breathing tube; the oil filter is cone-shaped as a whole, including an oil filter element, and the oil filter element is provided with a number of small holes that can allow gas to enter and exit and block oil and liquid; the breathing ring is annular as a whole, and several breathing holes are arranged radially; the oil-gas separation conical cap is cone-shaped as a whole; a flow-blocking outer ring is arranged on the outside of the air blocking cap; the base, the oil filter, the breathing ring, and the oil-gas separation conical cap are fixedly connected from bottom to top, the air blocking cap is arranged above the oil-gas separation conical cap, and the flow-blocking outer ring extends into the annular accommodating space.

[0006] As a further technical solution, the base, oil filter and oil-gas separation conical cap are all provided with connecting flanges; the base connecting flange is arranged above the breathing tube and has several threaded holes; the breathing ring is axially provided with several bolt holes; the oil-gas separation conical cap connecting flange is provided with several bolt holes; the base connecting flange, oil filter connecting flange, breathing ring and oil-gas separation conical cap connecting flange are stacked from bottom to top; the threaded holes on the base connecting flange, the bolt holes on the breathing ring and the bolt holes on the oil-gas separation conical cap connecting flange are correspondingly arranged for the hexagon socket head screws to be passed through and fixed.

[0007] As a further technical solution, a positioning inner ring is arranged inside the air blocking cap, and a positioning block is arranged above the connecting flange of the oil-gas separation conical cap. The positioning inner ring cooperates with the positioning block to prevent the air blocking cap from radial displacement.

[0008] The beneficial effects of the utility model are:

[0009] The utility model can separate most of the oil in the exhaust gas through the oil filter and the oil-gas separation conical cap, and the oil that is not completely separated will be collected by the oil tray, and the oil-containing gas will not be discharged into the atmosphere, thus complying with environmental protection regulations and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of an embodiment of the utility model;

[0012] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0013] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of part B;

[0014] Figure 5 This is a three-dimensional schematic diagram of an oil filter according to an embodiment of the utility model;

[0015] Figure 6 This is a three-dimensional schematic diagram of a breathing ring according to an embodiment of the utility model;

[0016] Figure 7 It is a three-dimensional schematic diagram of the oil and gas separation conical cap according to an embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1 base; 10 breathing tube; 11 connecting flange; 110 threaded hole; 12 oil tray;

[0019] 2 oil filter; 20 oil filter element; 21 connecting flange;

[0020] 3 breathing ring; 30 breathing hole; 31 bolt hole;

[0021] 4 oil-gas separation cone cap; 40 positioning block; 41 bolt hole; 42 connecting flange;

[0022] 5 air blocking cap; 50 positioning inner ring; 51 flow blocking outer ring;

[0023] 6 Hexagon socket head screws;

[0024] 7 Compressor body. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1-7 As shown, it is an embodiment of a reciprocating compressor body breathing cap of the utility model:

[0027] like Figure 1 , Figure 2 As shown, a reciprocating compressor body breathing cap includes: a base 1, an oil filter 2, a breathing ring 3, an oil-gas separation conical cap 4, and an air blocking cap 5. The base 1, the oil filter 2, the breathing ring 3, and the oil-gas separation conical cap 4 are fixedly connected from bottom to top, and the air blocking cap 5 is arranged above the oil-gas separation conical cap 4.

[0028] The base 1 includes: a breathing tube 10, a connecting flange 11 and an oil tray 12. The breathing tube 10 is connected to the compressor body 7 at the bottom. The connecting flange 11 is arranged above the breathing tube 10 and has a plurality of threaded holes 110. The oil tray 12 is arranged in the middle of the breathing tube 10 in the vertical direction, and an annular accommodation space is formed between the oil tray 12 and the breathing tube 10. A positioning inner ring 50 is arranged inside the air blocking cap 5, and a flow blocking outer ring 51 is arranged outside. The flow blocking outer ring 51 of the air blocking cap 5 extends into the above-mentioned annular accommodation space.

[0029] like Figure 5 As shown, the oil filter 2 is in a cone shape as a whole, and comprises an oil filter element 20 and a connecting flange 21. The oil filter element 20 is provided with a plurality of small holes that can allow gas to enter and exit while blocking oil.

[0030] like Figure 6 As shown, the breathing ring 3 is annular as a whole, and is provided with a plurality of breathing holes 30 in the radial direction and a plurality of bolt holes 31 in the axial direction.

[0031] like Figure 7 As shown, the oil-gas separation conical cap 4 is in a cone shape as a whole, and is provided with a connecting flange 42 . The connecting flange 42 is provided with a plurality of bolt holes 41 , and a positioning block 40 is provided above the connecting flange 42 .

[0032] like Figure 2 , Figure 3 , Figure 4 As shown, the connection flange 11 of the base 1, the connection flange 21 of the oil filter 2, the breathing ring 3, and the connection flange 42 of the oil-gas separation conical cap 4 are stacked from bottom to top, and the threaded holes 110 on the connection flange 11, the bolt holes 31 on the breathing ring 3, and the bolt holes 41 on the connection flange 42 are correspondingly arranged for the hexagon socket head screws 6 to pass through and fix. The positioning inner ring 50 of the air blocking cap 5 cooperates with the positioning block 40 of the oil-gas separation conical cap 4 to prevent the air blocking cap 5 from radial displacement.

[0033] The working principle of the utility model is as follows: Figure 1-7 During the operation of the reciprocating compressor, in order to prevent the oxidation of the lubricating oil in the compressor body 7, nitrogen is passed into the compressor body 7. The interior of the compressor body 7 is in a slightly positive pressure state, and the gas is continuously discharged through the breathing cap. Among them, the oil-containing gas is filtered by the oil filter element 20 of the oil filter 2. The small holes on the oil filter element 20 separate the lubricating oil in the oil-containing gas, and then the gas is buffered by the oil-gas separation conical cap 4. The gas is then radially discharged through the breathing holes 30 on the breathing ring 3, enters the gas flow channel formed by the oil tray 12 and the air blocking cap 5, and is finally discharged into the atmosphere. The trace lubricating oil passing through the breathing cap will be collected by the oil tray 12.

[0034] The advantages of the utility model are:

[0035] 1. The oil filter and oil-gas separation cone cap can separate most of the oil in the exhaust gas, and the oil that is not completely separated will be collected by the oil tray.

[0036] 2. The gas in the reciprocating compressor body is discharged through the gas flow channel formed by the breathing tube, oil filter, oil-gas separation conical cap, breathing ring, air blocking cap and oil tray. The exhaust gas flow rate will be greatly reduced to prevent lubricating oil from splashing.

[0037] 3. The air blocking cap positioning inner ring cooperates with the oil-gas separation conical cap positioning block to prevent the air blocking cap from radial displacement.

[0038] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A reciprocating compressor body breathing cap, characterized in that: It includes: Base, oil filter, breathing ring, oil and gas separation cone cap, air blocking cap; The base comprises: a breathing tube and an oil tray, wherein the lower part of the breathing tube is connected to the compressor body, and the oil tray is arranged at the middle part of the breathing tube in the vertical direction, and an annular accommodation space is formed between the oil tray and the breathing tube; The oil filter is in a cone shape as a whole, and includes an oil filter element, and the oil filter element is provided with a plurality of small holes that can allow gas to enter and exit and block oil; The breathing ring is in a ring shape as a whole, and is provided with a plurality of breathing holes in its radial direction; The oil-gas separation conical cap is in a cone shape as a whole; A flow-blocking outer ring is arranged outside the air-blocking cap; The base, the oil filter, the breathing ring, and the oil-gas separation conical cap are fixedly connected from bottom to top, the air blocking cap is arranged above the oil-gas separation conical cap, and the flow blocking outer ring extends into the annular accommodating space.

2. A reciprocating compressor body breathing cap according to claim 1, characterized in that: The base, the oil filter and the oil-gas separation conical cap are all provided with connecting flanges; The base connection flange is arranged above the breathing tube and has a plurality of threaded holes; The breathing ring is axially provided with a plurality of bolt holes; The oil-gas separation conical cap connecting flange is provided with a plurality of bolt holes; The base connecting flange, the oil filter connecting flange, the breathing ring, and the oil-gas separation conical cap connecting flange are stacked from bottom to top; The threaded holes on the base connecting flange, the bolt holes of the breathing ring, and the bolt holes on the oil-gas separation conical cap connecting flange are correspondingly arranged for the hexagon socket head screws to pass through and fix.

3. A reciprocating compressor body breathing cap according to claim 2, characterized in that: A positioning inner ring is arranged inside the air blocking cap, and a positioning block is arranged above the connecting flange of the oil-gas separation conical cap. The positioning inner ring cooperates with the positioning block to prevent the air blocking cap from radial displacement.

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