High-pressure bypass regulating valve with protective seal

Abstract

The utility model provides a high-pressure bypass regulating valve with protective sealing, which comprises a regulating valve main body, the regulating valve main body is provided with two inlet and outlet ports, each port is provided with a protective sealing flange structure, and the protective sealing flange structures are arranged together with a flange of a pipeline through flange bolts; the valve cover is arranged above the regulating valve main body, the electric actuator is arranged above the valve cover, and the electric actuator is used for opening the regulating valve main body; according to the utility model, the abrasion of the sealing ring is obviously reduced, the sealing durability and reliability are enhanced, and the leakage risk is reduced. The unique telescopic corrugated cylinder type protective sealing cover not only provides additional protection for the sealing ring, but also effectively blocks external impurities through the tightly attached butt joint disc, and avoids negative effects of the impurities on the sealing performance. The high-pressure bypass regulating valve is particularly effective in vibration and high-pressure washing environments, the overall sealing effect is greatly improved, and stable operation of the high-pressure bypass regulating valve is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of bypass regulating valve protection and sealing technology, and particularly relates to a high-pressure bypass regulating valve with protective sealing. Background Technology

[0002] A high-pressure bypass regulating valve is a control device specifically designed for pipeline systems. Its core function is to precisely regulate the pressure and flow rate of fluids within the pipeline. In high-pressure pipeline systems, multiple factors such as pipeline length, material, interface design, and ambient temperature often make it difficult to maintain constant pressure and flow rate during fluid transmission. The high-pressure bypass regulating valve, with its unique structural design and working principle, can effectively regulate these variables, thereby ensuring stable and safe transmission of the medium within the pipeline system. This characteristic has led to its widespread application in many key fields such as petrochemicals, power, aerospace, and metallurgy. The operational stability and safety of high-pressure pipeline systems play a crucial role in ensuring the smooth operation of production and work.

[0003] In terms of connection method, high-pressure bypass control valves are typically connected to pipelines via flanges. However, traditional flange connection structures mainly consist of two flanges (i.e., the pipeline flange and the control valve port flange) and a sealing element (usually a sealing ring) located between them. In this connection method, the sealing ring deforms under compression, forming a hard contact seal. Unfortunately, under the continuous action of vibration and high-pressure scouring forces, the sealing ring is difficult to maintain its sealing performance for a long time, thus increasing the risk of leakage. In addition, external impurities tend to accumulate around the sealing ring, further weakening its sealing effect.

[0004] Therefore, it is essential to invent a high-pressure bypass regulating valve with a protective seal. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-pressure bypass regulating valve with protective sealing, including a regulating valve body, ports, a protective sealing flange structure, flange bolts, a valve cover, and an electric actuator. The regulating valve body is provided with two inlet and outlet ports, and the protective sealing flange structure is installed on each port. The protective sealing flange structure is installed together with the flange of the pipeline by flange bolts. A valve cover is installed on the top of the regulating valve body, and an electric actuator is installed on the top of the valve cover. The electric actuator is used to open the regulating valve body.

[0006] Preferably, the protective sealing flange structure includes an interface flange, a groove, a shock absorber, and a spring. The end face of the interface flange has a groove, and the shock absorber is elastically slidably installed in the groove by the spring, wherein one end surface of the shock absorber protrudes outward.

[0007] Preferably, the protruding end face of the shock absorber seat is provided with a positioning groove, and a sealing ring is embedded in the positioning groove. The sealing ring protrudes outward and makes sealing contact with the flange of the pipe.

[0008] Preferably, the shock absorber is provided with a protective sealing cover on its exterior, and a mating plate is installed at each end of the protective sealing cover. The two mating plates are located inside the interface flange and the flange of the pipe, respectively.

[0009] Preferably, the flange bolts pass sequentially through the interface flange, the two mating discs, and the flange of the pipe, and are then fixed together.

[0010] Preferably, the protective sealing cover is a telescopic corrugated cylinder, which is used to protect the inner shock-absorbing seat and sealing ring sealing structure.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model introduces an innovative protective sealing flange structure, especially the combination design of the shock-absorbing seat and the spring, which achieves flexible support for the sealing ring, significantly reducing wear caused by direct hard contact. At the same time, under vibration and high-pressure scouring environments, the elasticity of the spring maintains a tight contact between the sealing ring and the pipe flange, thereby greatly enhancing the durability and reliability of the seal and effectively reducing the risk of leakage.

[0013] Furthermore, the unique protective sealing cover design of this utility model—the telescopic corrugated cylinder structure—not only provides an additional protective barrier for the shock-absorbing seat and sealing ring, but also effectively prevents the intrusion of external impurities by tightly fitting the mating discs at both ends with the inner sides of the interface flange and the pipe flange, thus avoiding the negative impact of impurities on the sealing performance and further improving the overall sealing effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is an exploded structural diagram of the protective sealing flange structure of this utility model.

[0016] Figure 3 This is a half-sectional structural diagram of the protective sealing flange structure of this utility model.

[0017] In the picture:

[0018] 1. Control valve body; 2. Port; 3. Protective sealing flange structure; 31. Interface flange; 32. Disc groove; 33. Vibration damping seat; 34. Spring; 35. Positioning groove; 36. Sealing ring; 37. Protective sealing cover; 38. Connecting plate; 4. Flange bolts; 5. Valve cover; 6. Electric actuator. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown:

[0022] This utility model provides a high-pressure bypass regulating valve with protective sealing, including a regulating valve body 1, ports 2, a protective sealing flange structure 3, flange bolts 4, a valve cover 5, and an electric actuator 6. The regulating valve body 1 is provided with two inlet and outlet ports 2, and the protective sealing flange structure 3 is installed on each port 2. The protective sealing flange structure 3 is installed together with the flange of the pipeline by flange bolts 4. The valve cover 5 is installed on the top of the regulating valve body 1, and the electric actuator 6 is installed on the top of the valve cover 5. The electric actuator 6 is used to open the regulating valve body 1.

[0023] Furthermore, the protective sealing flange structure 3 includes an interface flange 31, a groove 32, a shock absorber 33, and a spring 34. The end face of the interface flange 31 is designed with a groove 32, which provides a basis for the subsequent installation of the shock absorber 33 and the spring 34. The shock absorber 33 is elastically slidably installed in the groove 32 by the spring 34. This design allows the shock absorber 33 to buffer and adjust under vibration or high pressure through the elastic action of the spring 34, thereby maintaining tight contact with the pipe flange. One end of the shock absorber 33 protrudes outward, which is designed to facilitate the subsequent installation of the sealing ring 36 and maintain tight contact with the pipe flange.

[0024] Furthermore, a positioning groove 35 is provided on the protruding end face of the shock absorber 33 for embedding the sealing ring 36. The sealing ring 36 protrudes outward and makes sealing contact with the flange of the pipe. This design ensures that the sealing ring 36 can fit tightly against the pipe flange under pressure, forming an effective seal.

[0025] Furthermore, to further enhance the sealing effect and prevent impurities from entering, a protective sealing cover 37 is also provided on the outside of the shock absorber 33. Two mating plates 38 are installed at both ends of the protective sealing cover 37, located inside the interface flange 31 and the pipe flange, respectively. This design allows the protective sealing cover 37 to tightly wrap around the shock absorber 33 and the sealing ring 36, forming an additional protective barrier.

[0026] Furthermore, these components are secured together by sequentially passing flange bolts 4 through the interface flange 31, the two mating discs 38, and the pipe flange. This step ensures the stability of the entire protective sealing flange structure, providing strong protection for the normal operation of the high-pressure bypass regulating valve.

[0027] Furthermore, the protective sealing cover 37 adopts a telescopic bellows design. This design allows the protective sealing cover 37 to expand and contract to a certain extent under pressure, thereby better adapting to the deformation requirements of the shock absorber 33 and the sealing ring 36. At the same time, the material of the telescopic bellows also has good elasticity and corrosion resistance, enabling it to maintain its sealing performance for a long time.

[0028] I. Initial Installation and Sealing Formation

[0029] During installation, the interface flange 31 of the protective sealing flange structure 3 is tightly connected to the flange of the pipeline using flange bolts. The shock absorber 33 is elastically slidably installed in the groove 32 of the interface flange 31 by a spring 34. A positioning groove 35 is formed on its protruding end surface for embedding the sealing ring 36. The sealing ring 36 protrudes outward, forming a sealing contact with the flange of the pipeline. At this time, the spring 34 is in a compressed state, providing continuous clamping force to the sealing ring 36 to ensure a sealing effect. The protective sealing cover 37 acts as an additional protective barrier, tightly protecting the shock absorber 33 and the sealing ring 36. Its two mating discs 38 are tightly fitted to the inner sides of the interface flange 31 and the flange of the pipeline, respectively.

[0030] II. Working process of the regulating valve

[0031] When the pressure or flow rate of the fluid in the pipeline changes, these changes are transmitted to the valve core inside the regulating valve body 1. The valve core, under pressure, changes position, and through the interaction of the adjusting nut and spring, precise regulation of the fluid pressure and flow rate is achieved. The electric actuator 6, based on signals from the control system, drives the valve stem to move up and down, thereby changing the valve core opening and further regulating the fluid pressure and flow rate.

[0032] III. The function of the protective sealing structure

[0033] Under conditions of vibration and high-pressure scouring, the elasticity of spring 34 maintains a tight contact between the shock absorber 33 and the pipe flange, preventing wear of the sealing ring 36 due to direct hard contact. The protective sealing cover 37, designed as a telescopic bellows, can expand and contract to a certain extent under pressure, adapting to the deformation requirements of the shock absorber 33 and the sealing ring 36, while preventing external impurities from entering the area surrounding the sealing ring 36. The telescopic bellows is made of a material with good elasticity and corrosion resistance, maintaining its sealing performance over a long period and ensuring the stable operation of the control valve.

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high-pressure bypass regulating valve with a protective seal, characterized in that, The control valve includes a control valve body (1), ports (2), a protective sealing flange structure (3), flange bolts (4), a valve cover (5), and an electric actuator (6). The control valve body (1) has two inlet and outlet ports (2), and the protective sealing flange structure (3) is installed on each port (2). The protective sealing flange structure (3) is installed together with the flange of the pipeline by flange bolts (4). The valve cover (5) is installed on the top of the control valve body (1), and the electric actuator (6) is installed on the top of the valve cover (5). The electric actuator (6) is used to open the control valve body (1). The protective sealing flange structure (3) includes an interface flange (31), a groove (32), a shock absorber (33), and a spring (34). The end face of the interface flange (31) is provided with a groove (32). The shock absorber (33) is elastically slidably installed in the groove (32) by the spring (34). One end surface of the shock absorber (33) protrudes outward. The protruding end face of the shock absorber (33) is provided with a positioning groove (35). A sealing ring (36) is embedded in the positioning groove (35). The sealing ring (36) protrudes outward and is in sealing contact with the flange of the pipeline.

2. The high-pressure bypass regulating valve with protective seal as described in claim 1, characterized in that: The shock absorber seat (33) is provided with a protective sealing cover (37) on the outside. The two ends of the protective sealing cover (37) are respectively equipped with docking plates (38). The two docking plates (38) are located inside the interface flange (31) and the flange of the pipeline, respectively.

3. A high-pressure bypass regulating valve with protective seal as described in claim 2, characterized in that: The flange bolts (4) pass through the interface flange (31), the two mating discs (38) and the flange of the pipe in sequence, and fix them together.

4. A high-pressure bypass regulating valve with protective seal as described in claim 3, characterized in that: The protective sealing cover (37) is a telescopic corrugated cylinder. The protective sealing cover (37) is used to protect the inner shock-absorbing seat (33) and sealing ring (36) sealing structure.

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