Gas valve with heating function

Abstract

The utility model relates to valve technical field, and disclose a gas valve with heating function, including gas valve body, the outer wall of gas valve body is provided with heating structure, and heating structure can heat gas valve, heating structure includes heating wire, first closure cover and second closure cover, heating wire winding is installed in the outer wall of gas valve body, first closure cover and second closure cover are mutually jointed and cover in the outer wall of gas valve body, by setting heating structure on gas pressure relief valve, heating valve by heating wire, simultaneously through first closure cover and second closure cover and internal structure, heating wire protection and slow down internal heat loss, and convenient to maintain moreover, easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically a gas valve with a heating function. Background Technology

[0002] Pressure relief valves are designed to open and close automatically based on the system's working pressure. They are typically installed on equipment or pipelines in closed systems to protect system safety. When the pressure inside the equipment or pipeline exceeds the set pressure of the pressure relief valve, it can automatically open to release pressure, ensuring that the pressure of the medium inside the equipment and pipeline remains below the set pressure, thus protecting the equipment and pipeline and preventing accidents. However, at low temperatures, the pressure relief valve is prone to leakage or opening before the set pressure is reached due to thermal expansion and contraction, affecting the normal use of the equipment or pipeline.

[0003] Therefore, it is necessary to propose a gas valve with heating function. Utility Model Content

[0004] The purpose of this invention is to provide a gas valve with a heating function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gas valve with a heating function includes a gas valve body, and a heating structure is provided on the outer wall of the gas valve body. The heating structure can heat the gas valve. The heating structure includes a heating wire, a first closing cover and a second closing cover. The heating wire is wound and installed on the outer wall of the gas valve body, and the first closing cover and the second closing cover are interlocked and cover the outer wall of the gas valve body.

[0007] Preferably, the inner walls of both the first and second closed covers are provided with a foamed ceramic layer, and the inner walls at both ends of the first and second closed covers are provided with a second metal sealing gasket, the hollow layer inside the second metal sealing gasket being filled with ceramic fiber.

[0008] Preferably, a first arc-shaped cover is fixedly provided at the top and bottom of the first closed cover, and a second arc-shaped cover is fixedly provided at the top and bottom of the second closed cover, with the first arc-shaped cover and the second arc-shaped cover interlocking with each other.

[0009] Preferably, the inner walls of both the first arc-shaped cover and the second arc-shaped cover are provided with a first metal sealing gasket, and the hollow layer inside the first metal sealing gasket is filled with ceramic fiber.

[0010] Preferably, a first connecting strip is fixedly provided at the top of both the first and second closed covers, and the first connecting strips are connected to each other by bolts. A second connecting strip is fixedly provided at the bottom of both the first and second closed covers, and the second connecting strips are connected to each other by bolts.

[0011] Preferably, the side wall of the first closed cover has a wire hole, through which the wire of the heating wire passes.

[0012] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0013] By installing a heating structure on the gas pressure relief valve, the valve is heated by a heating wire. At the same time, the heating wire is protected and internal heat loss is slowed down by the first and second closing covers and the internal structure. Moreover, it is easy to disassemble and install and is convenient for maintenance. Attached Figure Description

[0014] Figure 1 This is a front view of a gas valve with a heating function;

[0015] Figure 2 This is a schematic diagram showing the installation of a heating wire in a gas valve with a heating function.

[0016] Figure 3 This is a schematic diagram showing the connection between the first and second closed covers in a gas valve with heating function.

[0017] Figure 4 This is a structural diagram of the first closed cover in a gas valve with heating function.

[0018] Explanation of reference numerals in the attached drawings: 1. Gas valve body; 2. Heating structure; 21. Heating wire; 22. First closing cover; 221. Second closing cover; 23. First connecting strip; 231. Second connecting strip; 24. First arc-shaped cover; 241. First metal sealing gasket; 25. Foamed ceramic layer; 26. Second metal sealing gasket; 27. Second arc-shaped cover; 28. Wire hole. Detailed Implementation

[0019] 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.

[0020] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0021] like Figures 1-4 ;

[0022] A gas valve with heating function includes a gas valve body 1. The gas valve body 1 is a gas valve of model YK43F-16 produced by Wenzhou Shuangtuo Valve Co., Ltd. Since the structure and operating principle of the gas valve body 1 are existing technologies, its structure and operating principle will not be described in detail here. The outer wall of the gas valve body 1 is provided with a heating structure 2, which can heat the gas valve.

[0023] Heating structure 2 includes a heating wire 21, a first closed cover 22, and a second closed cover 221. The heating wire 21 is wound and installed on the outer wall of the gas valve body 1. The heating wire 21 is powered by an external power source and heated to heat the gas valve body 1. The maximum heating temperature of the heating wire 21 is 40 degrees Celsius. The first closed cover 22 and the second closed cover 221 are interlocked and cover the outer wall of the gas valve body 1. The first closed cover 22 and the second closed cover 221 enclose the heating wire 21 and the gas valve body 1, and are used not only for heating the heating wire 21... The protection also reduces heat loss from the heating wire 21, extending the heating time of the gas valve body 1. Both the inner walls of the first closed cover 22 and the second closed cover 221 are provided with a foamed ceramic layer 25. The foamed ceramic layer 25 is a closed-cell ceramic material with high porosity, possessing excellent thermal insulation and high-temperature resistance. The thermal insulation performance of the foamed ceramic layer 25 effectively prevents heat transfer and slows down heat loss. Second metal sealing gaskets 26 are provided on the inner walls at both ends of the first closed cover 22 and the second closed cover 221. Gasket 26 is used to seal both ends of the first closed cover 22 and the second closed cover 221, reducing heat loss from the inside of the first closed cover 22 and the second closed cover 221. The hollow layer inside the second metal sealing gasket 26 is filled with ceramic fiber, which has good heat resistance and plays a role in heat insulation. The top and bottom of the first closed cover 22 are fixedly provided with a first arc-shaped cover 24, and the top and bottom of the second closed cover 221 are fixedly provided with a second arc-shaped cover 27. The first arc-shaped cover 24 and the second arc-shaped cover 27 are interlocked with each other. The arc-shaped cover 24 and the second arc-shaped cover 27 are used to match the gas valve body 1, and at the same time, they also serve to position the first closed cover 22 and the second closed cover 221, so that the first closed cover 22 and the second closed cover 221 will not rotate after assembly. The inner walls of the first arc-shaped cover 24 and the second arc-shaped cover 27 are provided with a first metal sealing gasket 241. The first metal sealing gasket 241 serves to seal the inner side of the first arc-shaped cover 24 and the second arc-shaped cover 27, thereby reducing the heat loss inside the first closed cover 22 and the second closed cover 221.

[0024] The hollow layer inside the first metal sealing gasket 241 is filled with ceramic fiber. The top of the first closed cover 22 and the second closed cover 221 are both fixedly provided with the first connecting strip 23, and the bottom of the first closed cover 22 and the second closed cover 221 are both fixedly provided with the second connecting strip 231. After the first closed cover 22 and the second closed cover 221 are snapped together, the first connecting strip 23 are connected with each other by bolts, and the second connecting strip 231 are connected with each other by bolts, thereby connecting and fixing the first closed cover 22 and the second closed cover 221. The side wall of the first closed cover 22 is provided with a wire hole 28. The wire of the heating wire 21 passes through the wire hole 28, and then the wire hole 28 is filled with a heat insulation pad to prevent the heat inside the first closed cover 22 and the second closed cover 221 from being lost in large quantities through the wire hole 28.

[0025] The working principle of this utility model is as follows: A layer of thermally conductive mica sheet is first wrapped around the outer wall of the gas valve body 1, serving as the medium between the heating wire 21 and the valve body. The heating wire 21 is then wound and installed on the outer wall of the mica sheet. The wire of the heating wire 21 passes through the wire hole 28. The first closing cover 22 and the second closing cover 221 are interlocked and cover the outer wall of the gas valve body 1, encasing the heating wire 21 and the gas valve body 1. The first connecting strips 23 and the second connecting strips 231 are connected by bolts, thereby connecting and fixing the first closing cover 22 and the second closing cover 221. The heating wire 21 is powered by an external power source to heat up and heat the gas valve body 1. The first closing cover 22 and the second closing cover 221 not only protect the heating wire 21 but also reduce the heating effect. The heat loss from the filament 21 prolongs the heating time of the gas valve body 1. The heat insulation performance of the foamed ceramic layer 25 can effectively prevent heat transfer and slow down heat loss. The inner walls of both ends of the first closed cover 22 and the second closed cover 221 are provided with second metal sealing gaskets 26. The inner walls of the first arc-shaped cover 24 and the second arc-shaped cover 27 are provided with first metal sealing gaskets 241. The first metal sealing gaskets 241 and the second metal sealing gaskets 26 respectively play a sealing role, slowing down the heat loss inside the first closed cover 22 and the second closed cover 221. After the first closed cover 22 and the second closed cover 221 are removed, it is also convenient for the gas valve body 1 to cool down quickly. Thus, the heating structure 2 on the gas valve body 1 can not only heat the gas valve, but also is easy to disassemble and install, and easy to maintain.

[0026] In summary, by setting a heating structure 2 on the gas pressure relief valve, the valve is heated by a heating wire 21. At the same time, the heating wire 21 is protected and internal heat loss is slowed down by the first closing cover 22, the second closing cover 221 and the internal structure. Moreover, it is easy to disassemble and install and easy to maintain.

Claims

1. A gas valve with heating function, comprising a gas valve body (1), characterized in that: The outer wall of the gas valve body (1) is provided with a heating structure (2), which can heat the gas valve. The heating structure (2) includes a heating wire (21), a first closed cover (22) and a second closed cover (221). The heating wire (21) is wound and installed on the outer wall of the gas valve body (1). The first closed cover (22) and the second closed cover (221) are interlocked and cover the outer wall of the gas valve body (1).

2. A gas valve with heating function according to claim 1, characterized in that: The inner walls of the first closed cover (22) and the second closed cover (221) are provided with a foamed ceramic layer (25), and the inner walls at both ends of the first closed cover (22) and the second closed cover (221) are provided with a second metal sealing gasket (26), and the hollow layer inside the second metal sealing gasket (26) is filled with ceramic fiber.

3. A gas valve with heating function according to claim 2, characterized in that: The first closed cover (22) is fixedly provided with a first arc-shaped cover (24) at the top and bottom, and the second closed cover (221) is fixedly provided with a second arc-shaped cover (27) at the top and bottom, and the first arc-shaped cover (24) and the second arc-shaped cover (27) are interlocked with each other.

4. A gas valve with heating function according to claim 3, characterized in that: The inner walls of the first arc-shaped cover (24) and the second arc-shaped cover (27) are provided with a first metal sealing gasket (241), and the hollow layer inside the first metal sealing gasket (241) is filled with ceramic fiber.

5. A gas valve with heating function according to claim 3, characterized in that: The top of the first closed cover (22) and the second closed cover (221) are both fixedly provided with a first connecting strip (23), and the first connecting strip (23) is connected to each other by bolts. The bottom of the first closed cover (22) and the second closed cover (221) are both fixedly provided with a second connecting strip (231), and the second connecting strip (231) is connected to each other by bolts.

6. A gas valve with heating function according to claim 1, characterized in that: The side wall of the first closed cover (22) is provided with a wire hole (28), through which the wire of the heating wire (21) passes.

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