Regulating valve adapted to ultra-low temperature environment

Abstract

The utility model discloses an adjusting valve suitable for super low temperature environment, including the valve body of foundation, the valve body inside fixed mounting has the through -hole tray, and the through -hole tray inside penetrates fixed mounting has the thread cylinder, the thread cylinder below fixed mounting has the inverted bucket simultaneously, the inverted bucket bottom fixed mounting has the connecting cylinder with inside area leakproof belt, the valve body top penetrates the thread cylinder and is laid with the sealing washer, and the thread cylinder inside penetration is equipped with hand wheel screw rod, this adjusting valve suitable for super low temperature environment, through setting: leakproof belt, connecting cylinder, sealing washer, inverted bucket and through -hole tray to solve the big problem of the internal leakage, external leakage of traditional low temperature high pressure adjusting valve that follows also is more and more obvious, and the urgent need to solve, and the majority of low temperature high pressure valves of domestic use are imported, in the low temperature industrial automation control field in our country, limited to the sealing property and reliability of traditional single low temperature balance sealing washer, it is difficult to satisfy the requirement of user super low temperature, low leakage, high pressure difference.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, specifically a regulating valve adapted to ultra-low temperature environments. Background Technology

[0002] As my country's LNG and air separation plant market continues to expand, the demand for cryogenic valves is increasing, and the requirements for their pressure ratings are also becoming higher. Consequently, the problems of large internal and external leakage in traditional cryogenic high-pressure regulating valves are becoming more and more apparent and urgently need to be solved. However, most cryogenic high-pressure valves used in China are imported. In the field of cryogenic industrial automation control in my country, the sealing performance and reliability of traditional single cryogenic balance sealing rings are limited, making it difficult to meet users' requirements for ultra-low temperature, low leakage, and high pressure differential. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a regulating valve adapted to ultra-low temperature environments. This addresses the increasingly prominent internal and external leakage problems of traditional low-temperature high-pressure regulating valves mentioned in the background, which urgently need to be resolved. Most low-temperature high-pressure valves used in China are imported. In the field of low-temperature industrial automation control in my country, the sealing performance and reliability of traditional single low-temperature balance sealing rings are limited, making it difficult to meet users' requirements for ultra-low temperature, low leakage, and high pressure differential.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a regulating valve adapted to ultra-low temperature environments, comprising a valve body with a foundation, a through-hole disc fixedly installed inside the valve body, and a threaded cylinder fixedly installed through the through-hole disc, while a bucket is fixedly installed below the threaded cylinder;

[0005] The bottom of the bucket is fixedly installed with a connecting cylinder with an internal anti-leakage strip. A sealing ring is laid through the threaded cylinder above the valve body, and a handwheel threaded rod is installed inside the threaded cylinder. At the same time, a valve core is installed at the bottom of the handwheel threaded rod.

[0006] By adopting the above technical solution, leakage is prevented through the installation of a leak-proof strip.

[0007] Preferably, a valve cover is fixedly installed on the top of the valve body, and an installation cylinder is fixedly installed on the top of the valve cover. At the same time, a filling rubber is fixedly installed inside the installation cylinder, and a waterproof cover is fixedly installed on the top of the handwheel threaded rod.

[0008] By adopting the above technical solution, the installation and fixation are achieved through the installation cylinder.

[0009] Preferably, the bucket has an overall cone-shaped structure.

[0010] By adopting the above technical solution, the bucket is set up to achieve installation and fixation.

[0011] Preferably, the sealing ring is laid in two layers, and the sealing ring is laid in an overlapping manner.

[0012] By adopting the above technical solution, a sealing connection is achieved through the use of a sealing ring.

[0013] Preferably, the filling rubber is internally threaded.

[0014] By adopting the above technical solution, the filling rubber is used to fill and wrap the area.

[0015] Preferably, the waterproof cover has an overall cone-shaped structure.

[0016] By adopting the above technical solution, the waterproof cover provides protection.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the regulating valve adapted to ultra-low temperature environments,

[0018] (1) This case solves the problem of internal and external leakage of traditional low temperature high pressure regulating valves by setting up: anti-leakage belt, connecting cylinder, sealing ring, inverted bucket and through hole plate. The problem is becoming increasingly obvious and needs to be solved. Most of the low temperature high pressure valves used in China are imported. In the field of low temperature industrial automation control in my country, the sealing and reliability of the traditional single low temperature balance sealing ring are limited, making it difficult to meet the user's requirements for ultra-low temperature, low leakage and high pressure difference. The sealing ring is used to increase the installation sealing between the valve body and the valve cover. The sealing ring is used to prevent liquid from leaking to the outside of the valve body. At the same time, when the anti-leakage belt, connecting cylinder, inverted bucket and through hole plate are used, the handwheel thread rod carries the valve core up and down and comes into contact with the anti-leakage belt and the inner wall of the connecting cylinder, thus forming a sealing effect. The sealing effect formed by the above two is also to prevent liquid from leaking to the outside of the valve body. At the same time, the inverted bucket and through hole plate also play a sealing role, providing a double sealing effect for the inside of the valve body, increasing the sealing and sealing of the inside of the valve body and preventing liquid from leaking to the inside of the valve body.

[0019] (2) By setting up a waterproof cover, mounting sleeve and filling rubber, not only are the above problems solved, but the filling rubber is also used to elastically wrap the handwheel thread rod in the ultra-low temperature environment. When the filling rubber elastically wraps the handwheel thread rod, it reduces the gap between the handwheel thread rod and the valve cover and avoids liquid leakage. At the same time, the waterproof cover prevents rainwater and condensate from entering the valve cover and valve body and shortening the service life of the sealing ring and filling rubber. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the valve body, handwheel threaded rod, valve cover, mounting sleeve and waterproof cover of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the valve body, through-hole disc, threaded cylinder, bucket, sealing ring, handwheel threaded rod, valve core, valve cover, mounting cylinder, filling rubber and waterproof cover of this utility model;

[0022] Figure 3 This is a schematic diagram of the bucket structure of this utility model;

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Valve body; 2. Through-hole plate; 3. Threaded cylinder; 4. Bucket; 5. Leak-proof strip; 6. Connecting cylinder; 7. Sealing ring; 8. Handwheel threaded rod; 9. Valve core; 10. Valve cover; 11. Mounting cylinder; 12. Filler rubber; 13. Waterproof cover. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a regulating valve adapted to ultra-low temperature environments, such as... Figure 1 and Figure 2 As shown, the device includes a valve body 1 with a base, a through-hole plate 2 fixedly installed inside the valve body 1, and a threaded cylinder 3 fixedly installed through the through-hole plate 2. At the same time, a bucket 4 is fixedly installed below the threaded cylinder 3. The bucket 4 has an overall cone-shaped structure. The cone-shaped structure of the above components not only reflects the fixed installation of the components, but also reflects the through connection of the components. Furthermore, the cone-shaped structure of the above components forms a seal between the lower part of the components and the upper part of the valve body 1. The sealed space formed by the components and the upper part of the valve body 1 seals and intercepts the liquid to prevent liquid leakage.

[0027] like Figure 3 and Figure 4As shown, in the above scheme, a connecting cylinder 6 with an internal anti-leakage strip 5 is fixedly installed at the bottom of the bucket 4. A sealing ring 7 is laid through the threaded cylinder 3 above the valve body 1. The sealing ring 7 is laid in two layers and is laid in an overlapping manner. When the above components are laid in two layers, it not only reflects the connectivity of the above components but also the sealing performance of the above components. Furthermore, when the above components are laid in an overlapping manner, it not only reflects the quick installation and disassembly of the above components but also the sealing performance of the above components under pressure and compression. A handwheel threaded rod 8 is installed inside the threaded cylinder 3, and a valve core 9 is installed at the bottom of the handwheel threaded rod 8.

[0028] Furthermore, in the above scheme, a valve cover 10 is fixedly installed on the top of the valve body 1, and an installation cylinder 11 is fixedly installed on the top of the valve cover 10. A filling rubber 12 is fixedly installed inside the installation cylinder 11, and the filling rubber 12 is threaded. This threaded design not only facilitates the close fit between the inner wall of the component and the handwheel threaded rod 8, but also avoids interference with the movement of the handwheel threaded rod 8 caused by the inner wall of the component. Simultaneously, the threaded design of the component's inner wall effectively utilizes the elastic adjustment effect to close and wrap the cold-shrinking handwheel threaded rod 8. A waterproof cover 13 is fixedly installed on the top of the handwheel threaded rod 8. The waterproof cover 13 has a conical shape. This conical shape not only ensures the component's fit and installation, but also provides rain protection. Furthermore, the conical shape enhances the practicality of the component's installation.

[0029] In the above scheme, when the handwheel threaded rod 8 is in operation, it carries the valve core 9 and comes into contact with the leak-proof strip 5 and the inner wall of the connecting cylinder 6 to prevent leakage and seal. When the handwheel threaded rod 8 rotates, it also rotates relative to the filling rubber 12 to provide a secondary seal and prevent liquid leakage.

[0030] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model 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 limiting the scope of protection of this utility model.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A regulating valve adapted to ultra-low temperature environments, comprising a valve body (1) with a base, characterized in that: The valve body (1) is fixedly installed with a through hole plate (2), and a threaded cylinder (3) is fixedly installed through the through hole plate (2). At the same time, a bucket (4) is fixedly installed below the threaded cylinder (3). The bottom of the bucket (4) is fixedly installed with a connecting cylinder (6) with an internal anti-leakage strip (5). A sealing ring (7) is laid on the threaded cylinder (3) above the valve body (1), and a handwheel threaded rod (8) is installed inside the threaded cylinder (3). At the same time, a valve core (9) is installed at the bottom of the handwheel threaded rod (8).

2. A regulating valve adapted to ultra-low temperature environments according to claim 1, characterized in that: A valve cover (10) is fixedly installed on the top of the valve body (1), and an installation cylinder (11) is fixedly installed on the top of the valve cover (10). Meanwhile, a filling rubber (12) is fixedly installed inside the installation cylinder (11), and a waterproof cover (13) is fixedly installed on the top of the handwheel thread rod (8).

3. A regulating valve adapted to ultra-low temperature environments according to claim 1, characterized in that: The bucket (4) has an overall cone-shaped structure.

4. A regulating valve adapted to ultra-low temperature environments according to claim 1, characterized in that: The sealing ring (7) is laid in two layers, and the sealing ring (7) is laid in an overlapping manner.

5. A regulating valve adapted to ultra-low temperature environments according to claim 2, characterized in that: The filling rubber (12) is internally threaded.

6. A regulating valve adapted to ultra-low temperature environments according to claim 2, characterized in that: The waterproof cover (13) has an overall cone-shaped structure.

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