Thermal ball valve with thermal insulation

Abstract

The application relates to a heat-preservation ball valve with a heat-preservation layer and relates to the technical field of ball valves, which comprises a primary valve body, a valve core ball is rotatably installed in the primary valve body, a valve hole is formed in the valve core ball, a rotating rod is arranged on the primary valve body, the rotating rod drives the valve core ball to rotate in the primary valve body, a secondary valve body is arranged on one side of the primary valve body, the secondary valve body is installed on the primary valve body, a valve pipe is arranged on the inner side of the secondary valve body, a heat-preservation cavity is formed between the valve pipe and the secondary valve body, a feeding hole is arranged on the secondary valve body, the feeding hole is communicated with the heat-preservation cavity, a liquid channel is formed in the valve pipe, and the liquid channel is communicated with the valve hole. The application omits the welding of a layer plate on the primary valve body, the production efficiency of the heat-preservation ball valve is improved, and if the heat-preservation cavity is damaged due to leakage, the secondary valve body only needs to be taken off from the primary valve body.

Description

Technical Field

[0001] This application relates to the field of ball valve technology, and in particular to an insulated ball valve with an insulation layer. Background Technology

[0002] Currently, ball valves are a commonly used industrial valve. Their core component is a spherical valve core with a central opening, which controls the flow of fluid or regulates flow rate by rotating 90 degrees. When the valve orifice is aligned with the pipeline, the medium can flow smoothly; vertical rotation cuts off the flow. They are characterized by their compact structure, good sealing performance (usually using soft or metal seals), easy operation (manual, pneumatic, or electric drive), low flow resistance, and suitability for high pressure, high temperature, and various media (such as water, gas, and corrosive liquids). They are widely used in petroleum, chemical, power, and water supply and drainage industries.

[0003] When ball valves are used in high-viscosity chemical media, a drop in temperature will cause the media to condense, resulting in crystals on the ball surface and valve seat sealing surface. These crystals adhere to the ball, making it difficult to open and close, accelerating wear, and severely affecting the service life of the ball valve. Therefore, a layer plate is welded onto the existing ball valve, with the layer plate spaced apart from the ball valve. During use, an insulating medium is added between the ball valve and the layer plate.

[0004] Regarding the aforementioned technologies, the inventors believe that welding the layer plate onto the ball valve reduces the production efficiency of the insulated ball valve. If leakage or damage occurs, the layer plate needs to be removed or the ball valve needs to be replaced directly, affecting the use of the ball valve. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an insulated ball valve with an insulation layer, which solves the technical problem that welding the layer plate onto the ball valve reduces the production efficiency of the insulated ball valve, and if leakage or damage occurs, the layer plate needs to be removed or the ball valve needs to be replaced directly, which affects the use of the ball valve.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A heat-insulating ball valve with a heat-insulating layer includes a primary valve body, in which a valve core ball is rotatably mounted. The valve core ball has a valve hole. A rotating rod is provided on the primary valve body, driving the valve core ball to rotate within the primary valve body. A secondary valve body is provided on one side of the primary valve body and mounted on the primary valve body. A valve tube is provided inside the secondary valve body, forming a heat-insulating cavity between the valve tube and the secondary valve body. A feed hole is provided on the secondary valve body, communicating with the heat-insulating cavity. A liquid channel is formed inside the valve tube, communicating with the valve hole.

[0008] Furthermore, a support ring is provided at intervals inside the primary valve body, and a liquid passage is formed between the support ring and the primary valve body. The liquid passage is connected to the insulation cavity, and a connecting rib is provided between the support ring and the primary valve body, the connecting rib connecting the primary valve body and the support ring.

[0009] Furthermore, a connecting bolt is provided on the primary valve body. One end of the connecting bolt passes through the primary valve body and the secondary valve body in sequence. The connecting bolt is threaded to the primary valve body, and a nut is provided on the end of the connecting bolt that passes through the secondary valve body. One end of the nut is pressed against the secondary valve body.

[0010] Furthermore, a sealing gasket is provided between the support ring and the valve tube, and the sealing gasket abuts against the support ring and the valve tube to seal the gap between the support ring and the valve tube.

[0011] Furthermore, a sealing ring is provided between the valve tube and the valve core ball, and the sealing ring abuts against the valve core ball and the valve tube to seal the gap between the valve tube and the valve core ball.

[0012] Furthermore, a pressure block is provided on the valve tube, one side of which is connected to the valve tube, and the other end extends towards the side close to the secondary valve body.

[0013] Furthermore, the primary valve body is provided with a feed pipe, one end of which is integrally formed with the primary valve body. The feed hole is formed on the feed pipe, and a plug is threaded onto the feed pipe to seal the feed hole.

[0014] In summary, this application includes at least one of the following beneficial technical effects of an insulated ball valve with an insulation layer:

[0015] 1. In use, the valve pipe is installed on the primary valve body via the secondary valve body. Insulation medium is then added to the insulation cavity between the secondary valve body and the valve pipe. During operation, the valve core ball is rotated by the rotating rod. When the valve hole on the valve core ball connects with the liquid passage on the valve pipe, the primary valve body is open, and the insulation in the insulation cavity directly insulates the flowing liquid. When the valve hole on the valve core ball is misaligned with the liquid passage, the primary valve body is closed. This eliminates the need to weld the layer plate to the primary valve body, improving the production efficiency of the insulated ball valve. If the insulation cavity leaks or is damaged, simply remove the secondary valve body from the primary valve body.

[0016] 2. The use of primary connecting bolts and nuts in the liquid passage between the support ring and the primary valve body improves the ease of use of both the primary and secondary valve bodies;

[0017] 3. By using sealing gaskets and sealing rings, the sealing performance of the primary valve body and the secondary valve body is improved during use. Attached Figure Description

[0018] Figure 1 This application mainly provides a schematic diagram of the overall structure of a heat-insulating ball valve with a heat-insulating layer;

[0019] Figure 2 This is an exploded schematic diagram of the primary valve body structure provided in this application;

[0020] Figure 3 This is a cross-sectional view of the primary valve body and the secondary valve body provided in this application;

[0021] Figure 4 yes Figure 3 An enlarged schematic diagram of part A.

[0022] Reference numerals: 1. Primary valve body; 11. Valve core ball; 111. Valve hole; 12. Rotating rod; 13. Support ring; 14. Liquid passage; 15. Connecting bolt; 151. Nut; 2. Secondary valve body; 21. Valve pipe; 211. Liquid passage; 212. Pressure block; 22. Insulation chamber; 23. Feed pipe; 24. Feed hole; 25. Plug; 26. Sealing gasket; 27. Sealing ring. Detailed Implementation

[0023] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0025] This application discloses an insulated ball valve with an insulation layer.

[0026] Reference Figures 1-3 A heat-insulating ball valve with a heat-insulating layer includes a primary valve body 1 and a secondary valve body 2. The primary valve body 1 is provided with a valve core ball 11 and a rotating rod 12, and the rotating rod 12 drives the valve core ball 11 to rotate on the primary valve body 1. The secondary valve body 2 is provided with a valve pipe 21, and a heat-insulating cavity 22 is formed between the valve pipe 21 and the secondary valve body 2. The heat-insulating cavity 22 is filled with a heat-insulating medium, which keeps the liquid flowing through it warm.

[0027] Reference Figures 2-3A support ring 13 is provided inside the primary valve body 1. The support ring 13 is installed inside the primary valve body 1 and is spaced apart from the primary valve body 1. A liquid passage 14 is formed between the support ring 13 and the primary valve body 1, and the liquid passage 14 connects the two sides of the primary valve body 1. Furthermore, a valve core ball 11 is rotatably installed inside the support ring 13, and a rotating rod 12 is rotatably installed on the primary valve body 1. One end of the rotating rod 12 passes through the primary valve body 1 and the support ring 13 in sequence, and the end of the rotating rod 12 that passes through the support ring 13 is connected to the valve core ball 11. In use, the rotating rod 12 drives the valve core ball 11 to rotate inside the primary valve body 1.

[0028] The valve core ball 11 has a valve hole 111 that extends through both sides of the valve core ball 11. When the valve hole 111 on the valve core ball 11 is connected to both sides of the primary valve body 1, the primary valve body 1 is in the open state. When the rotating rod 12 drives the valve core ball 11 to rotate 90 degrees, the valve hole 111 on the valve core ball 11 is misaligned with both ends of the primary valve body 1, thereby causing the primary valve body 1 to be in the closed state.

[0029] Two secondary valve bodies 2 are provided on each side of the primary valve body 1, and both secondary valve bodies 2 are connected to the primary valve body 1. To improve the stability of the connection between the primary valve body 1 and the secondary valve bodies 2, the primary valve body 1 is provided with connecting bolts 15, which correspond to the two secondary valve bodies 2. Four sets of connecting bolts 15 are arranged at intervals on both sides of the corresponding secondary valve bodies 2. One end of each of the four sets of connecting bolts 15 passes through the primary valve body 1 and the secondary valve body 2 in sequence. One end of the connecting bolt 15 is threaded to the primary valve body 1, and the threaded end of the connecting bolt 15 passing through the secondary valve body 2 is threaded with a nut 151. One end of the nut 151 is pressed against the secondary valve body 2, thereby improving the convenience of disassembly and installation between the primary valve body 1 and the secondary valve body 2.

[0030] The secondary valve body 2 is provided on each side of the primary valve body 1. The two sets of secondary valve bodies 2 have the same structure and function. The following description will only focus on one set of secondary valve bodies 2.

[0031] Valve pipe 21 is installed inside the secondary valve body 2, and valve pipe 21 is coaxial with the secondary valve body 2. A heat preservation cavity 22 is formed between valve pipe 21 and the secondary valve body 2. In use, the heat preservation cavities 22 of both sets of secondary valve bodies 2 are connected to the liquid passage 14. A feed pipe 23 is provided on the secondary valve body 2. One end of the feed pipe 23 is integrally formed with the secondary valve body 2, and a feed hole 24 is formed on the feed pipe 23, which is connected to the heat preservation cavity 22. In use, heat preservation medium is added into the heat preservation cavity 22 through the feed hole 24 on the feed pipe 23. A plug 25 is provided on the feed pipe 23, and the plug 25 is threadedly connected to the feed pipe 23. When heat preservation medium is added into the heat preservation cavity 22, the plug 25 seals the feed hole 24 of the feed pipe 23.

[0032] A liquid channel 211 is formed inside the valve tube 21. When the liquid channel 211 inside the valve tube 21 is connected to the valve hole 111 on the valve core ball 11, the first-stage valve body 1 is in the open state. When the valve hole 111 on the valve core ball 11 is misaligned with the liquid channel 211, the first-stage valve body 1 is in the closed state.

[0033] Reference Figures 3-4 Furthermore, to improve the sealing between valve tube 21 and support ring 13, the secondary valve body 2 presses valve tube 21 against support ring 13. A sealing gasket 26 is provided between valve tube 21 and support ring 13, pressing against the support ring 13 and valve tube 21 to seal the gap between them. A sealing ring 27 is provided between valve tube 21 and valve core ball 11, pressing against the valve core ball 11 and valve tube 21 to seal the gap between them.

[0034] To further enhance the sealing performance between the valve tube 21 and the support ring 13 and valve core ball 11, a pressure block 212 is provided on the side of the valve tube 21 near the valve core ball 11. One end of the pressure block 212 is connected to the valve tube 21, and the other end extends towards the secondary valve body 2. When the secondary valve body 2 is connected to the primary valve body 1, the secondary valve body 2 presses against the pressure block 212. As the secondary valve body 2 is connected to the primary valve body 1, the pressure block 212 presses the valve tube 21 against the support ring 13. This improves the sealing performance between the valve tube 21, the support ring 13, and the valve core ball 11.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat-insulating ball valve with a heat-insulating layer, comprising a primary valve body (1), wherein a valve core ball (11) is rotatably mounted inside the primary valve body (1), the valve core ball (11) has a valve hole (111) formed thereon, and a rotating rod (12) is provided on the primary valve body (1), the rotating rod (12) driving the valve core ball (11) to rotate inside the primary valve body (1), characterized in that: A secondary valve body (2) is provided on one side of the primary valve body (1). The secondary valve body (2) is installed on the primary valve body (1). A valve tube (21) is provided on the inner side of the secondary valve body (2). A heat insulation cavity (22) is formed between the valve tube (21) and the secondary valve body (2). A feed hole (24) is provided on the secondary valve body (2). The feed hole (24) is connected to the heat insulation cavity (22). A liquid channel (211) is formed inside the valve tube (21). The liquid channel (211) is connected to the valve hole (111).

2. The insulated ball valve with an insulation layer according to claim 1, characterized in that: The first-stage valve body (1) is provided with a support ring (13) at intervals. A liquid passage (14) is formed between the support ring (13) and the first-stage valve body (1). The liquid passage (14) is connected to the heat preservation cavity (22). A connecting rib is provided between the support ring (13) and the first-stage valve body (1). The connecting rib connects the first-stage valve body (1) and the support ring (13).

3. A heat-insulating ball valve with a heat-insulating layer according to claim 2, characterized in that: A connecting bolt (15) is provided on the primary valve body (1). One end of the connecting bolt (15) passes through the primary valve body (1) and the secondary valve body (2) in sequence. The connecting bolt (15) is threadedly connected to the primary valve body (1). A nut (151) is provided at one end of the connecting bolt (15) that passes through the secondary valve body (2). One end of the nut (151) is pressed against the secondary valve body.

4. A heat-insulating ball valve with a heat-insulating layer according to claim 2, characterized in that: A sealing gasket (26) is provided between the support ring (13) and the valve tube (21). The sealing gasket (26) abuts against the support ring (13) and the valve tube (21) to seal the gap between the support ring (13) and the valve tube (21).

5. A heat-insulating ball valve with a heat-insulating layer according to claim 2, characterized in that: A sealing ring (27) is provided between the valve tube (21) and the valve core ball (11). The sealing ring (27) abuts against the valve core ball (11) and the valve tube (21), and the sealing ring (27) seals the gap between the valve tube (21) and the valve core ball (11).

6. A heat-insulating ball valve with a heat-insulating layer according to claim 1, characterized in that: A pressure block (212) is provided on the valve pipe (21). One side of the pressure block (212) is connected to the valve pipe (21), and the other end extends towards the side close to the secondary valve body (2).

7. A heat-insulating ball valve with a heat-insulating layer according to claim 1, characterized in that: The primary valve body (1) is provided with a feed pipe (23), one end of which is integrally formed with the primary valve body (1). The feed hole (24) is formed on the feed pipe (23), and a plug (25) is threadedly connected to the feed pipe (23). The plug (25) seals the feed hole (24).

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