An oil separator check valve

Abstract

The utility model provides a kind of oil separator check valve, relate to oil separator field, including valve body, valve seat, shell, the valve body is installed in shell, the valve seat is set in the bottom of shell, the lower end of the valve seat is connected with discharge pipeline, the valve seat is fixedly installed on the upper cover of oil separator, the top of shell is equipped with steel sleeve, in the utility model, by welding, check valve is integrated on oil separator, by using different welding mode in different positions, it is guaranteed to realize sealing, reduce occupied space, reduce cost and reduce the influence of mechanical vibration on flange, thread and other connecting structures, ensure the connecting strength.

Description

Technical Field

[0001] This utility model relates to the field of oil separators, specifically to a one-way valve for an oil separator. Background Technology

[0002] In an oil separator system, the connection method of the check valve (welded fixed connection or separate connection via pipeline) directly affects the system's sealing performance, maintainability, cost, and reliability.

[0003] In existing technologies, considering the maintenance and adaptation issues of check valves, they are generally connected to the oil separator pipeline via flanges, threads, or clamps, with a detachable pipe section in the middle. This allows for quick valve disassembly and flexible adaptation by adjusting the length and angle of the pipeline. However, this method also has the disadvantages of leakage at flange or threaded interfaces, space occupation, high cost, and greater sensitivity to vibrations generated during equipment operation. Utility Model Content

[0004] The purpose of this invention is to provide an oil separator check valve and a compressor having the check valve, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a one-way valve for an oil separator, comprising a valve body, a valve seat, and a housing, wherein the valve body is installed inside the housing, the valve seat is located at the bottom of the housing, the lower end of the valve seat is connected to a discharge pipe, the valve seat is fixedly installed on the upper cover of the oil separator, and a steel sleeve is provided on the top of the housing.

[0006] Preferably, the housing includes a mounting section and an extension section, wherein a valve body is installed inside the mounting section, and the extension section is located at the upper end of the mounting section.

[0007] Preferably, the diameter of the extension section is smaller than that of the installation section, and a steel sleeve is welded and fixed to the top of the extension section.

[0008] Preferably, the valve seat is provided with a first step and a second step, the first step and the second step are connected by a sealing ring, and the sealing ring is welded and fixed to the upper cover of the oil separator through the second step.

[0009] Preferably, the bottom of the housing is fixed to the step by welding.

[0010] Preferably, the top of the discharge pipe is fixed to the valve seat by welding.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, a one-way valve is integrated into the oil separator by welding. By using different welding methods at different locations, the invention achieves the goals of ensuring sealing, reducing space occupation, lowering costs, and reducing the impact of mechanical vibration on flange, threaded and other connection structures, while ensuring connection strength. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 yes Figure 2 Cross-sectional view of the inner EE section;

[0016] Figure 4 yes Figure 3 Enlarged view of the structure at point F inside;

[0017] Figure 5 This is an installation diagram of a check valve mounted on an oil separator.

[0018] In the diagram: 1 - Valve body;

[0019] 2-Valve seat; 21-Step 1; 22-Step 2; 23-Sealing ring;

[0020] 3-Housing; 31-Mounting section; 32-Extension section;

[0021] 4-Discharge pipe; 5-Steel sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 This utility model provides a technical solution: a one-way valve for an oil separator, including a valve body 1, a valve seat 2, and a housing 3. The valve body 1 is installed inside the housing 3, the valve seat 2 is located at the bottom of the housing 3, the lower end of the valve seat 2 is connected to a discharge pipe 4, the valve seat 2 is fixedly installed on the upper cover of the oil separator, and a steel sleeve 5 is provided on the top of the housing 3.

[0024] In this embodiment, the housing 3 includes a mounting section 31 and an extension section 32. The valve body 1 is installed inside the mounting section 31. The extension section 32 is located at the upper end of the mounting section 31. The extension section 32 and the mounting section 31 are connected to each other by a flared inclined surface, which can reduce the resistance when the fluid passes through.

[0025] In this embodiment, the diameter of the extension section 32 is smaller than that of the installation section 31, and a steel sleeve 5 is welded and fixed to the top of the extension section 32. The steel sleeve 5 is circumferentially welded to the top of the housing 3 by laser welding.

[0026] In this embodiment, the valve seat 2 is provided with a first step 21 and a second step 22. The first step 21 and the second step 22 are connected by a sealing ring 23. The sealing ring 23 is welded and fixed to the upper cover of the oil separator through the second step 22. The second step 22 is used to weld the entire valve seat 2 to the oil separator by argon arc welding.

[0027] In this embodiment, the bottom of the housing 3 is fixed to the step 21 by welding.

[0028] In this embodiment, the top of the discharge pipe 4 is fixed to the valve seat 2 by welding, and the top of the discharge pipe 4 is spot-welded to the valve seat 2 by laser welding.

[0029] Working principle: Valve seat 2 serves as a connecting part, and the discharge pipe 4 inside the oil separator is spot-welded to valve seat 2. At the same time, the sealing ring 23 of valve seat 2 is circumferentially welded to the upper end cover of the oil separator, thus completing the integrated design of the one-way valve and the oil separator.

[0030] Based on the above, this utility model integrates the one-way valve onto the oil separator by welding. By using different welding methods at different locations, it achieves the goals of ensuring sealing, reducing space occupation, lowering costs, and reducing the impact of mechanical vibration on flange, threaded and other connection structures, thereby ensuring connection strength.

[0031] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A one-way valve for an oil separator, characterized in that: It includes a valve body (1), a valve seat (2), and a housing (3). The valve body (1) is installed inside the housing (3). The valve seat (2) is located at the bottom of the housing (3). The lower end of the valve seat (2) is connected to a discharge pipe (4). The valve seat (2) is fixedly installed on the upper cover of the oil separator. The top of the housing (3) is provided with a steel sleeve (5).

2. The one-way valve for an oil separator according to claim 1, characterized in that: The housing (3) includes a mounting section (31) and an extension section (32). The valve body (1) is installed inside the mounting section (31), and the extension section (32) is located at the upper end of the mounting section (31).

3. The one-way valve for an oil separator according to claim 2, characterized in that: The diameter of the extension section (32) is smaller than that of the installation section (31), and a steel sleeve (5) is welded and fixed to the top of the extension section (32).

4. The one-way valve for an oil separator according to claim 2, characterized in that: The valve seat (2) is provided with a first step (21) and a second step (22). The first step (21) and the second step (22) are connected by a sealing ring (23). The sealing ring (23) is welded and fixed to the upper cover of the oil separator through the second step (22).

5. The one-way valve for an oil separator according to claim 4, characterized in that: The bottom of the shell (3) is fixed to the step (21) by welding.

6. The one-way valve for an oil separator according to claim 4, characterized in that: The top of the discharge pipe (4) is fixed to the valve seat (2) by welding.

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