Anti-static sealing ring for oil-gas separator

By designing a U-shaped groove structure and using conductive nails for fixing, the problem of adhesion and misalignment of the sealing ring in the oil-gas separator during maintenance was solved, achieving high-efficiency sealing performance and saving time.

CN224270563UActive Publication Date: 2026-05-26NANTONG CHAOMAN FILTER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG CHAOMAN FILTER CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing oil-gas separator sealing rings are prone to sticking to the end cap of the oil-gas tank during maintenance, which leads to cleaning difficulties and misalignment and breakage of the sealing rings, resulting in time-consuming and labor-intensive processes.

Method used

Design an antistatic sealing ring for an oil-gas separator, using a U-shaped groove structure and fluororubber or nitrile material. It is snapped onto the outside of the flange and fixed with conductive nails, avoiding the need for grooves on the upper and lower covers of the oil-gas tank, thus achieving a tight fit.

Benefits of technology

It reduces wasted time during maintenance, avoids cleaning residue from the sealing rings and prevents misalignment and breakage, thus improving sealing performance and service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224270563U_ABST
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Abstract

The utility model relates to the technical field of oil-gas separator sealing rings, and discloses an anti-static sealing ring for an oil-gas separator, which comprises a bottom cover, a filter element main body is mounted on the upper side of the bottom cover, a flange is mounted on the upper side of the filter element main body, and a sealing ring is sleeved on the outer side of the top of the flange. Two groups of conductive nails are arranged between the flange and the sealing ring; a sealing ring is arranged on the flange, a U-shaped groove is formed in the inner side of the sealing ring, the U-shaped groove is matched with the flange, an arc-shaped protruding part is arranged on the sealing ring, and the arc-shaped protruding part corresponds to the conductive nail. According to the anti-static sealing ring for the oil-gas separator, the sealing ring is of a U-shaped structural design and can be clamped to the outer side of a flange, so that turning grooves are not needed to be formed in the upper cover and the lower cover of an oil-gas barrel, the labor hour of maintenance is saved, residues of an asbestos pad do not need to be cleaned, and the problems that manual cleaning with tools is needed, time is consumed, and the working efficiency is high are solved. And a groove needs to be turned on the end cover, so that the sealing ring is broken.
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Description

Technical Field

[0001] This utility model relates to the technical field of sealing rings for oil-gas separators, specifically an antistatic sealing ring for oil-gas separators. Background Technology

[0002] To ensure the sealing performance of the oil-gas separator and prevent leakage of internal high-pressure gas and oil mist, as well as to prevent the intrusion of external contaminants, high-performance sealing rings (such as O-rings, special-shaped sealing rings, etc.) need to be installed on key parts such as the shell mating surface and rotating shaft (such as centrifugal separators).

[0003] Currently, there are two common types of oil-gas sealing rings used in the industry: 1. Asbestos gaskets are used and attached to both sides of the oil-gas separator end cap; 2. Sealing ring grooves are machined into the upper and lower covers of the oil-gas separator, and the sealing rings are used for sealing. Since the oil-gas separator is a consumable part of the compressor and requires maintenance more than twice a year, if asbestos gaskets are used during maintenance, the high operating temperature of the compressor causes the asbestos gaskets to stick to the oil-gas separator end cap, requiring manual cleaning with tools, which is time-consuming. Furthermore, during cleaning, debris can easily fall into the oil-gas separator, resulting in significant wasted labor. If sealing ring structures are used, grooves need to be machined into the end caps during manufacturing, and the sealing rings may become misaligned during maintenance, leading to breakage. Utility Model Content

[0004] The purpose of this invention is to provide an antistatic sealing ring for an oil-gas separator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an antistatic sealing ring for an oil-gas separator, comprising a bottom cover, a filter element body installed on the upper side of the bottom cover, a flange installed on the upper side of the filter element body, a sealing ring sleeved on the outer side of the top of the flange, and two sets of conductive pins provided between the flange and the sealing ring.

[0006] The inner side of the sealing ring is provided with a U-shaped groove, which matches the flange. The sealing ring is provided with an arc-shaped protrusion, which corresponds to the conductive pin.

[0007] Furthermore, the filter element body includes an outer shell, filter media, and an inner shell. The outer shell and the inner shell are disposed between the bottom cover and the flange. The outer shell is located outside the inner shell, and the filter media is disposed between the outer shell and the inner shell.

[0008] Furthermore, both the outer shell and the inner shell are provided with evenly distributed through holes.

[0009] Furthermore, the flange has a first groove corresponding to the upper part of the filter element body, and the bottom cover has a second groove corresponding to the filter element body.

[0010] Furthermore, the sealing ring is made of fluororubber or nitrile rubber.

[0011] Compared with the prior art, this utility model provides an antistatic sealing ring for an oil-gas separator, which has the following advantages:

[0012] This oil-gas separator uses an anti-static sealing ring. By employing a U-shaped design, the sealing ring can be snapped onto the outside of the flange, eliminating the need for machining grooves on the upper and lower covers of the oil-gas separator. This saves labor time during maintenance and eliminates the need to clean asbestos gasket residue. It solves the problem of existing systems using asbestos gaskets, where the high operating temperature of the compressor causes the asbestos gasket to stick to the oil-gas separator end caps, requiring manual cleaning with tools, which is time-consuming and can easily result in residue falling into the oil-gas separator, causing significant labor waste. If a sealing ring structure is used, grooves need to be machined on the end caps during manufacturing, which can lead to misalignment of the sealing ring during maintenance, potentially causing it to break. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0015] Figure 3 This is a three-dimensional structural diagram of the filter element body of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the flange of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the conductive nail of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the sealing ring of this utility model;

[0019] Figure 7 This is a cross-sectional three-dimensional structural diagram of the sealing ring of this utility model.

[0020] In the diagram: 1. Bottom cover; 2. Filter element body; 21. Outer shell; 22. Filter media; 23. Inner shell; 3. Flange; 4. Conductive pin; 5. Sealing ring. Detailed Implementation

[0021] 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. Example

[0022] Please see Figures 1-7 An antistatic sealing ring for an oil-gas separator includes a bottom cover 1, a filter element body 2 installed on the upper side of the bottom cover 1, a flange 3 installed on the upper side of the filter element body 2, a sealing ring 5 sleeved on the outer side of the top of the flange 3, and two sets of conductive pins 4 provided between the flange 3 and the sealing ring 5.

[0023] The inner side of the sealing ring 5 is provided with a U-shaped groove, which matches the flange 3. The sealing ring 5 is provided with an arc-shaped protrusion, which corresponds to the conductive nail 4.

[0024] Because the inner side of the sealing ring 5 is provided with a U-shaped groove corresponding to the flange 3, the sealing ring 5 can be tightly engaged with the outer side of the flange 3.

[0025] Furthermore, the filter element body 2 includes an outer shell 21, a filter material 22, and an inner shell 23. The outer shell 21 and the inner shell 23 are disposed between the bottom cover 1 and the flange 3. The outer shell 21 is located outside the inner shell 23, and the filter material 22 is disposed between the outer shell 21 and the inner shell 23.

[0026] Furthermore, both the outer shell 21 and the inner shell 23 are provided with evenly distributed through holes.

[0027] Furthermore, the flange 3 has a groove 1 corresponding to the upper part of the filter element body 2, and the bottom cover 1 has a groove 2 corresponding to the filter element body 2.

[0028] Furthermore, the sealing ring 5 is made of fluororubber or nitrile rubber.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When in use, first put the sealing ring 5 on the outside of the flange 3. Since the inner side of the sealing ring 5 is provided with a U-shaped groove corresponding to the flange 3, the sealing ring 5 can be tightly locked on the outside of the flange 3.

[0031] After installing the sealing ring 5, drive conductive nails 4 into the two arc-shaped protrusions on the flange 3. Then, place the assembled filter element inside the external oil-gas separator tank. Place the flange 3 on the upper edge of the external oil-gas separator tank. Then, align the external flange cover with the upper edge of the oil-gas separator tank. By placing the sealing ring 5 between the external flange cover and the oil-gas separator tank, and locking the external flange cover to the oil-gas separator tank with external screws, the sealing operation of the oil-gas separator is achieved.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An antistatic sealing ring for an oil-gas separator, comprising a bottom cover (1), characterized in that: The filter element body (2) is installed on the upper side of the bottom cover (1), and a flange (3) is installed on the upper side of the filter element body (2). A sealing ring (5) is sleeved on the outer side of the top of the flange (3), and two sets of conductive nails (4) are provided between the flange (3) and the sealing ring (5). The inner side of the sealing ring (5) is provided with a U-shaped groove, which matches the flange (3). The sealing ring (5) is provided with an arc-shaped protrusion, which corresponds to the conductive nail (4).

2. The antistatic sealing ring for an oil-gas separator according to claim 1, characterized in that: The filter element body (2) includes an outer shell (21), a filter material (22), and an inner shell (23). The outer shell (21) and the inner shell (23) are arranged between the bottom cover (1) and the flange (3). The outer shell (21) is located outside the inner shell (23), and the filter material (22) is arranged between the outer shell (21) and the inner shell (23).

3. The antistatic sealing ring for an oil-gas separator according to claim 2, characterized in that: Both the outer shell (21) and the inner shell (23) are provided with evenly distributed through holes.

4. The antistatic sealing ring for an oil-gas separator according to claim 1, characterized in that: The flange (3) has a groove one corresponding to the upper part of the filter element body (2), and the bottom cover (1) has a groove two corresponding to the filter element body (2).

5. The antistatic sealing ring for an oil-gas separator according to claim 1, characterized in that: The sealing ring (5) is made of fluororubber or nitrile rubber.