A sealing assembly for a natural gas dehydrocarbon removal device

Abstract

This utility model relates to the technical field of natural gas processing equipment, and more particularly to a sealing assembly for a natural gas heavy hydrocarbon removal device. It includes a first pipe body and a second pipe body, which are threaded together with a sealing ring at the connection. Sealing sleeves are integrally fitted onto the outer side of both the first and second pipe bodies near the second pipe body. A sealing ring sleeve, fitted onto the outer side of the connection between the first and second pipe bodies, is connected between the two sealing sleeves. Both ends of the sealing ring sleeve are connected to the two sealing sleeves by multiple sealing bolts. This utility model provides a sealing assembly that offers multiple sealing guarantees and leakage monitoring functions, thereby improving the overall sealing reliability and safety of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of natural gas processing equipment technology, and in particular to a sealing component for a natural gas dehydrocarbon removal device. Background Technology

[0002] Natural gas often contains heavy hydrocarbon components during extraction and transportation, requiring dehydrocarbon removal equipment to ensure pipeline transportation safety and subsequent efficiency. As a critical structural element in equipment connections, the performance of sealing components directly affects system sealing and operational stability. Under high pressure, low temperature, and highly corrosive media conditions, sealing components must possess excellent pressure resistance, elastic recovery capability, and long-term reliability to prevent natural gas leaks that could cause safety hazards or efficiency reduction.

[0003] Currently, the sealing structures commonly used in this type of equipment mostly employ single-layer sealing methods, such as relying solely on threaded connections to compress the sealing ring or using a single flange face with a gasket to achieve a seal. During long-term operation, these structures are prone to material aging, temperature fluctuations, or vibration and impact, leading to loosening or partial failure of the sealing surface, making it difficult to maintain a continuously effective seal. Furthermore, existing structures lack real-time monitoring capabilities for leaks; minor leaks are often difficult to detect in time and may gradually escalate into serious leakage problems. Utility Model Content

[0004] This invention provides a sealing component that can provide multiple sealing protections and has leakage monitoring functions, so as to improve the overall sealing reliability and safety of the equipment.

[0005] The technical solution adopted by this utility model is as follows: a sealing assembly for a natural gas dehydrocarbon removal device, including a first pipe body and a second pipe body, the first pipe body and the second pipe body are threaded together and a sealing ring is provided at the connection. A sealing sleeve is integrally fitted on the outer side of the first pipe body near the second pipe body and the outer side of the second pipe body near the first pipe body. A sealing ring sleeve fitted on the outer side of the connection between the two sealing sleeves is connected between them. Both ends of the sealing ring sleeve are connected to the two sealing sleeves by multiple sealing bolts.

[0006] The second tube body has an insert tube integrally connected to the inner side of one end near the first tube body, and the outer surface of the insert tube is provided with an external thread. The inner surface of the first tube body is provided with an internal thread that matches the external thread.

[0007] As a further improvement of this utility model, the first tube body is provided with an end ring one at one end near the second tube body, and the second tube body is provided with an end ring two that is sleeved on the outside of the end ring one at one end near the first tube body.

[0008] As a further improvement of this utility model, the sealing ring is located inside the end ring and sleeved on the outside of the insertion tube.

[0009] As a further improvement of this utility model, each of the two sealing sleeves is provided with an inner ring groove for the sealing ring to be installed at one end near the sealing ring sleeve. The two ends of the sealing ring sleeve are respectively inserted into the inner ring grooves of the two sealing sleeves to form a double sealing structure.

[0010] As a further improvement of this utility model, a plurality of the sealing bolts are distributed in a ring array on the sealing ring sleeve and the two sealing rubber sleeves.

[0011] As a further improvement of this utility model, a sensor for detecting whether natural gas is leaking is installed inside the sealing ring sleeve.

[0012] The beneficial effects of this utility model are as follows: This utility model achieves a first seal by setting a sealing ring at the threaded connection between the first and second pipe bodies, and sets a second detachable mechanical seal on the outside, consisting of a sealing sleeve, a sealing ring sleeve, and sealing bolts, forming a double sealing structure inside and outside, which greatly improves the sealing reliability and pressure bearing capacity of the connection. At the same time, the sensor integrated in the sealing ring sleeve can monitor the leakage in real time, which significantly enhances the safety and maintainability of the equipment operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a sealing assembly for a natural gas heavy hydrocarbon removal device according to this utility model; Figure 2 This is an exploded view of the structure of a sealing component for a natural gas heavy hydrocarbon removal device according to this utility model; Figure 3 This utility model relates to a sealing component for a natural gas heavy hydrocarbon removal device. Figure 2 Another perspective illustration; Figure 4 This is a partial cross-sectional view of a sealing assembly for a natural gas heavy hydrocarbon removal device according to this utility model; Figure 5 This is an exploded cross-sectional view of a sealing component for a natural gas dehydrocarbon removal device according to this utility model.

[0014] As shown in the figure: 1. First tube body; 2. Second tube body; 3. Sealing ring; 4. Sealing sleeve; 5. Sealing ring sleeve; 6. Sealing bolt; 7. Insert tube; 8. End ring one; 9. End ring two. Detailed Implementation

[0015] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0016] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] This utility model provides the following: Figure 1-5 The sealing assembly for a natural gas dehydrocarbon removal device shown includes a first pipe body 1 and a second pipe body 2. The first pipe body 1 and the second pipe body 2 are threaded together and a sealing ring 3 is provided at the connection. A sealing sleeve 4 is integrally fitted on the outer side of the first pipe body 1 near the second pipe body 2 and the outer side of the second pipe body 2 near the first pipe body 1. A sealing ring sleeve 5 is connected between the two sealing sleeves 4 and is fitted on the outer side of the connection between the first pipe body 1 and the second pipe body 2. Both ends of the sealing ring sleeve 5 are connected to the two sealing sleeves 4 by multiple sealing bolts 6.

[0019] like Figure 2-5 As shown, in this utility model, the second pipe body 2 is integrally connected to the inner side of the end near the first pipe body 1 with an insert 7 and the outer surface of the insert 7 is provided with an external thread. The inner surface of the first pipe body 1 is provided with an internal thread that matches the external thread. Through the threaded engagement between the insert 7 and the first pipe body 1, the initial positioning and connection of the first pipe body 1 and the second pipe body 2 can be achieved. The tightness of the threaded connection can form a basic seal for the natural gas in the pipe and provide stable support for the subsequent installation of the sealing structure.

[0020] like Figure 2-5 As shown, in this utility model, the first pipe body 1 is provided with an end ring 8 near the end of the second pipe body 2, and the second pipe body 2 is provided with an end ring 9 that is fitted outside the end ring 8 near the end of the first pipe body 1. The sealing ring 3 is located inside the end ring 8 and fitted outside the insertion tube 7. The nesting and cooperation of the end ring 8 and the end ring 9 can increase the contact area of ​​the connection part of the two pipe bodies and improve the overall stability of the structure. When the first pipe body 1 and the second pipe body 2 are tightened by threads, the end ring 8 will compress the sealing ring 3, causing the sealing ring 3 to undergo elastic deformation and fit tightly between the inner surface of the end ring 8 and the inner surface of the insertion tube 7, thereby achieving the first reliable seal and effectively preventing natural gas from leaking from the threaded connection gap.

[0021] like Figure 2-5As shown, in this utility model, each of the two sealing sleeves 4 has an inner ring groove near the sealing ring sleeve 5 for the installation of the sealing ring sleeve 5. The two ends of the sealing ring sleeve 5 are respectively inserted into the inner ring grooves of the two sealing sleeves 4 to form a double sealing structure. The sealing sleeves 4 are made of low-temperature resistant and aging-resistant elastic rubber material. The fit between the inner ring groove and the end of the sealing ring sleeve 5 can further enhance the sealing effect by utilizing the elasticity of the rubber on the basis of mechanical connection, forming a second sealing barrier. The design of the inner and outer double sealing structure ensures that even if the first seal fails due to accident, the second seal can still effectively prevent leakage, greatly improving the redundancy and reliability of the seal.

[0022] like Figure 1-5 As shown, in this utility model, multiple sealing bolts 6 are arranged in a ring array on the sealing ring sleeve 5 and two sealing rubber sleeves 4. The ring array of sealing bolts 6 can evenly press the sealing ring sleeve 5 between the two sealing rubber sleeves 4, ensuring that the contact surface between the sealing ring sleeve 5 and the sealing rubber sleeve 4 is subjected to uniform force, avoiding sealing failure due to insufficient local pressure. At the same time, the detachable bolt connection method also facilitates the installation, maintenance and replacement of the sealing assembly.

[0023] In this invention, a sensor for detecting natural gas leakage is installed inside the sealing ring 5. This sensor can be a gas sensor sensitive to the composition of natural gas. When a small leak occurs in the first seal, the leaked natural gas will accumulate in the closed space formed by the sealing ring 5 and the two sealing sleeves 4. The sensor can detect the change in natural gas concentration in a timely manner and transmit the signal to the equipment control system so that the operator can take measures quickly to prevent the leak from worsening. This achieves real-time monitoring of the sealing status and significantly improves the safety of equipment operation.

[0024] Working Principle: In practical implementation, the first and second pipe bodies are first connected by tightening the external thread of the insertion pipe to the internal thread of the first pipe body. At this time, end ring one and end ring two are nested together, and end ring one compresses the sealing ring, causing the sealing ring to elastically deform and tightly fit between the inner side of end ring one and the outer side of the insertion pipe, completing the first seal. Next, the two ends of the sealing ring sleeve are inserted into the inner ring grooves of the two sealing rubber sleeves respectively, and then the sealing ring sleeve is fastened to the two sealing rubber sleeves by sealing bolts distributed in a ring array. The elasticity of the sealing rubber sleeves and the cooperation between the sealing ring sleeve and the sealing rubber sleeves form the second seal. After installation, the sensor inside the sealing ring sleeve monitors the natural gas concentration in the closed space formed by the sealing ring sleeve and the two sealing rubber sleeves in real time. When an abnormal concentration is detected, a leakage signal is issued in time. During routine maintenance or when the seal needs to be replaced, the sealing ring sleeve can be removed by disassembling the sealing bolts to inspect and replace the internal sealing ring and other components. The operation is convenient and efficient.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A seal assembly for a natural gas de-hydrocarboning apparatus comprising a first pipe body (1) and a second pipe body (2), characterised in that: The first tube (1) and the second tube (2) are threaded together and a sealing ring (3) is provided at the connection. A sealing sleeve (4) is integrally fitted on the outer side of the first tube (1) near the second tube (2) and the outer side of the second tube (2) near the first tube (1). A sealing ring sleeve (5) is fitted on the outer side of the connection between the two sealing sleeves (4). The two ends of the sealing ring sleeve (5) are connected to the two sealing sleeves (4) by multiple sealing bolts (6).

2. A seal assembly for a natural gas de-lourizing unit according to claim 1, wherein: The second tube (2) is integrally connected to the inner side of one end of the first tube (1) with a tube (7) and the outer surface of the tube (7) is provided with an external thread. The inner surface of the first tube (1) is provided with an internal thread that matches the external thread.

3. A seal assembly for a natural gas de-lourizing unit, as set forth in claim 1, wherein: The first tube (1) is provided with an end ring 1 (8) near the end of the second tube (2), and the second tube (2) is provided with an end ring 2 (9) that is fitted outside the end ring 1 (8) near the end of the first tube (1).

4. A seal assembly for a natural gas de-lourizing unit according to claim 3 wherein: The sealing ring (3) is located inside the end ring (8) and sleeved on the outside of the insertion tube (7).

5. A seal assembly for a natural gas de-lourizing unit according to claim 1 wherein: Both of the sealing sleeves (4) have an inner ring groove for the sealing ring sleeve (5) to be installed at one end. The two ends of the sealing ring sleeve (5) are respectively inserted into the inner ring grooves of the two sealing sleeves (4) to form a double sealing structure.

6. A seal assembly for a natural gas de-lourizing unit according to claim 1 wherein: Multiple sealing bolts (6) are arranged in a ring array on the sealing ring sleeve (5) and two sealing sleeves (4).

7. A seal assembly for a natural gas de-lourizing unit according to claim 1 wherein: The sealing ring (5) is equipped with a sensor for detecting whether natural gas is leaking.

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