Petroleum valve with double sealing structure

Abstract

The utility model discloses a petroleum valve with double sealing structure relates to petroleum valve technical field, including valve body, and the outer wall of valve body is provided with sealing installation mechanism. The utility model discloses the setting of sealing installation mechanism can reach the valve body with pipeline installation, with the sealing effect of the connection of valve body and pipeline, in the use, can avoid because the valve and pipeline are difficult to install, and lead to the process of valve and pipeline installation is more complicated, and then need to consume a large amount of time to install the valve and pipeline, ensure the installation convenience of the petroleum valve, also avoid because the installation connection of pipeline and valve is difficult to seal, and lead to the connection possibly leaks petroleum, petroleum is flammable and explosive goods, and the leaked petroleum meets the open fire, static electricity and is easy to cause explosion or fire, and the dangerous situation of surrounding environment safety appears, ensure the safety of the petroleum valve.

Description

Technical Field

[0001] This utility model relates to the field of oil valve technology, specifically an oil valve with a double sealing structure. Background Technology

[0002] Oil valves are core control components in the entire oil extraction, transportation, and refining industry chain. They are adjusted by the valve stem to control the flow and ensure the safety of oil and related fluids (such as natural gas, crude oil, and refining intermediates).

[0003] Most oil valves currently in use are difficult to install and connect to pipelines, and sealing the installation point is also challenging. This difficulty in connecting the valve to the pipeline during use leads to a cumbersome installation process, requiring a significant amount of time and effort, thus reducing the ease of installation. Furthermore, the difficulty in sealing the connection between the valve and the pipeline can result in oil leaks. Oil is flammable and explosive; leaked oil can easily ignite or cause an explosion or fire upon contact with open flames or static electricity, posing a danger to the surrounding environment and compromising the safety of the oil valve. Additionally, it is difficult to prevent oil from corroding the valve body. Utility Model Content

[0004] The purpose of this invention is to provide an oil valve with a double sealing structure to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil valve with a double sealing structure, comprising a valve body, wherein a sealing installation mechanism is provided on the outer wall of the valve body, the sealing installation mechanism comprising a fixing ring, the fixing ring being provided on the outer wall of the valve body, a first sealing ring being provided at one end of the fixing ring, the inner side of the first sealing ring being in contact with one end of the valve body, a pad being provided on the outer wall of the fixing ring, and threaded holes being provided in the interior of the pad, the interior of the fixing ring, and the interior of the valve body, wherein a first bolt is provided in the interior of the pad through the threaded holes.

[0006] As a preferred technical solution, the outer wall of the fixing ring is provided with a flange, the inside of the flange is provided with a through hole, and a second bolt is provided inside the flange through the through hole.

[0007] As a preferred technical solution, a nut is provided on the outer wall of the second bolt, and a second sealing ring is provided on the outer wall of the flange.

[0008] As a preferred technical solution, the shape and size of the fixing ring are matched with the shape and size of the valve body, and the shape of the fixing ring is circular.

[0009] As a preferred technical solution, the shape and size of the first sealing ring are matched with the shape and size of the fixing ring, and the number of gaskets is two sets, with four in each set.

[0010] As a preferred technical solution, the shape and size of the second sealing ring match the shape and size of the flange, and the shape of the second sealing ring is circular.

[0011] As a preferred technical solution, a valve seat is provided on the outer wall of the valve body, and a valve stem is provided on the top of the valve seat.

[0012] As a preferred technical solution, the inner wall of the valve body is provided with a polyurethane coating, and the shape and size of the polyurethane coating match the shape and size of the valve body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of a sealing installation mechanism, can achieve the functions of installing the valve body and the pipeline, and sealing the connection between the valve body and the pipeline. During use, the first bolt, the second bolt, and the nut are used to install the first sealing ring and the second sealing ring, and at the same time, the pipeline and the valve body are installed. The first sealing ring and the second sealing ring provide a double seal at the connection between the pipeline and the valve body. This avoids the situation where the valve and pipeline installation process is complicated due to the difficulty of installation, and thus requires a lot of time to install the valve and the pipeline. This ensures the ease of installation of the oil valve and also avoids the possibility of oil leakage at the connection due to the difficulty of sealing the connection between the pipeline and the valve. Oil is a flammable and explosive substance. Leaked oil can easily cause an explosion or fire when it comes into contact with open flames or static electricity, which would endanger the safety of the surrounding environment. This ensures the safety of the oil valve.

[0014] 2. This utility model, through the application of a polyurethane coating, can prevent oil from corroding the inner wall of the valve body. During use, the corrosion-resistant properties of the polyurethane coating isolate the inner wall of the valve body from direct contact with oil, preventing oil corrosion. This avoids the situation where, due to the difficulty in preventing oil corrosion of the inner wall of the valve body, after prolonged use, oil corrosion can cause holes, cracks, etc., which could lead to oil leaks and other dangerous situations. This ensures the service life and safety of the oil valve. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present utility model; Figure 2 This is a schematic diagram of the sealing installation mechanism of this utility model; Figure 3 This is a schematic diagram of the connection structure between the flange and the second sealing ring of this utility model; Figure 4 This is a schematic diagram of the connection structure between the fixing ring and the first sealing ring of this utility model; Figure 5 This is a schematic diagram of the connection structure between the valve body and the polyurethane coating of this utility model.

[0016] The components are: 1. Valve body; 2. Sealing installation mechanism; 201. Fixing ring; 202. First sealing ring; 203. Gasket; 204. First bolt; 205. Flange; 206. Second bolt; 207. Nut; 208. Second sealing ring; 3. Polyurethane coating; 4. Valve seat; 5. Valve stem. Detailed Implementation

[0017] 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.

[0018] Example: Figure 1 and Figure 2 As shown, the present invention provides the following technical solution, including a valve body 1, a sealing installation mechanism 2 provided on the outer wall of the valve body 1, a valve seat 4 provided on the outer wall of the valve body 1, a valve stem 5 provided on the top of the valve seat 4, and a polyurethane coating 3 provided on the inner wall of the valve body 1.

[0019] Specifically: When the valve body 1 is needed, it must first be installed on the pipeline, and the connection between the pipeline and the valve body 1 must be sealed. The valve body 1 is installed on the pipeline using the sealing installation mechanism 2, and the connection between the pipeline and the valve body 1 is sealed. After installation, the valve body 1 can be used for operation. The rotation of the valve body inside the valve body 1 is controlled by rotating the valve stem 5, thereby regulating the flow rate and switching on / off. During oil transportation, the polyurethane coating 3 on the inner wall of the valve body 1 prevents oil from corroding the inner wall, thus completing the operation.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a sealing installation mechanism 2 is provided on the outer wall of the valve body 1. The sealing installation mechanism 2 includes a fixing ring 201. A first sealing ring 202 is provided at one end of the fixing ring 201. The inner side of the first sealing ring 202 fits against one end of the valve body 1. A gasket 203 is provided on the outer wall of the fixing ring 201. Threaded holes are provided inside the gasket 203, the fixing ring 201, and the valve body 1. A first bolt 204 is installed inside the gasket 203 through the threaded holes. A flange 205 is provided on the outer wall of the fixing ring 201. A first bolt 204 is installed inside the flange 205. The flange 205 has a through hole, through which a second bolt 206 is installed. A nut 207 is installed on the outer wall of the second bolt 206. A second sealing ring 208 is installed on the outer wall of the flange 205. The shape and size of the fixing ring 201 match the shape and size of the valve body 1, and the shape of the fixing ring 201 is circular. The shape and size of the first sealing ring 202 match the shape and size of the fixing ring 201. There are two sets of gaskets 203, with four in each set. The shape and size of the second sealing ring 208 match the shape and size of the flange 205, and the shape of the second sealing ring 208 is circular.

[0021] When the valve body 1 is needed, it must first be installed on the pipeline, and the connection between the pipeline and the valve body 1 must be sealed. At this time, the retaining ring 201 is fitted onto one side of the valve body 1, so that the first sealing ring 202 is tightly against one end of the valve body 1. The threaded holes in the gasket 203 on the outer wall of the retaining ring 201 and the threaded holes in the valve body 1 are aligned. Then, the first bolt 204 is rotated and inserted into the threaded hole to fix the retaining ring 201. Simultaneously, the flange 205 on the outer wall of the retaining ring 201 is fixed to the outer wall of the valve body 1. Then, the flange 205 on the pipeline is fitted with the flange 205 on the valve body 1, so that the two flanges... Align the through holes in flange 205, insert the second bolt 206 into the through holes, and screw the nut 207 into the outer wall of the second bolt 206 to install and fix the two flanges 205, so that the pipeline and valve body 1 are connected and installed. After installation, the second sealing ring 208 on the outer wall of flange 205 can seal the connection between valve body 1 and pipeline, and the first sealing ring 202 will also seal between the two. Oil leakage is prevented through double sealing. This installation method allows flange 205 to be directly removed from valve body 1 and replaced when components such as sealing rings are aged or the valve itself is damaged, making maintenance work more convenient and thus completing the sealing installation work.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, the inner wall of the valve body 1 is provided with a polyurethane coating 3, and the shape and size of the polyurethane coating 3 match the shape and size of the valve body 1.

[0023] Specifically, during the oil transportation process, the polyurethane coating 3 on the inner wall of the valve body 1 prevents the oil from corroding the inner wall of the valve body 1, isolating the inner wall of the valve body 1 from the oil. At the same time, the polyurethane coating 3 also has a certain heat preservation function, which can reduce energy consumption and prevent corrosion for processes that require heat tracing, thereby completing the corrosion prevention work.

[0024] The working principle of this utility model is as follows: When the valve body 1 is needed, it is first necessary to install the valve body 1 with the pipeline and seal the connection between the pipeline and the valve body 1. At this time, the fixing ring 201 is fitted into one side of the valve body 1, so that the first sealing ring 202 is tightly attached to one end of the valve body 1. The threaded hole in the gasket 203 on the outer wall of the fixing ring 201 and the threaded hole in the fixing ring 201 are aligned with the threaded hole in the valve body 1. Then, the first bolt 204 is rotated and inserted into the threaded hole to fix the fixing ring 201. At the same time, the flange 205 on the outer wall of the fixing ring 201 is fixed to the outer wall of the valve body 1. Then, the flange 205 on the pipeline and the flange 205 on the valve body 1 are fitted together, so that the two flanges 205 are aligned. Align the through holes, insert the second bolt 206 into the through hole, and screw the nut 207 into the outer wall of the second bolt 206 to install and fix the two flanges 205, so that the pipeline and valve body 1 are connected and installed. After installation, the second sealing ring 208 on the outer wall of the flange 205 can seal the connection between the valve body 1 and the pipeline, and the first sealing ring 202 will also seal between the two. The double seal prevents oil leakage. This installation method allows the flange 205 to be directly removed from the valve body 1 and replaced when the sealing ring or other components are aged or the valve itself is damaged, making maintenance work more convenient and completing the sealing installation. After installation, the valve body 1 can be used for operation. The valve body inside the valve body 1 is controlled by rotating the valve stem 5, thereby regulating the flow and switching. During the oil transportation process, the polyurethane coating 3 on the inner wall of the valve body 1 prevents the oil from corroding the inner wall of the valve body 1 and isolates the inner wall of the valve body 1 from the oil. At the same time, the polyurethane coating 3 also has a certain heat preservation function, which can reduce energy consumption and prevent corrosion in the process of heat tracing transportation, thereby completing the corrosion prevention work.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oil valve with a double sealing structure, comprising a valve body (1), characterized in that: The outer wall of the valve body (1) is provided with a sealing installation mechanism (2). The sealing installation mechanism (2) includes a fixing ring (201). The outer wall of the valve body (1) is provided with a fixing ring (201). One end of the fixing ring (201) is provided with a first sealing ring (202). The inner side of the first sealing ring (202) is in contact with one end of the valve body (1). The outer wall of the fixing ring (201) is provided with a pad (203). The inside of the pad (203), the inside of the fixing ring (201) and the inside of the valve body (1) are all provided with threaded holes. The inside of the pad (203) is provided with a first bolt (204) through the threaded hole.

2. The oil valve with a double sealing structure according to claim 1, characterized in that: The outer wall of the fixing ring (201) is provided with a flange (205), and the inside of the flange (205) is provided with a through hole. A second bolt (206) is provided inside the flange (205) through the through hole.

3. The oil valve with a double sealing structure according to claim 2, characterized in that: The outer wall of the second bolt (206) is provided with a nut (207), and the outer wall of the flange (205) is provided with a second sealing ring (208).

4. The oil valve with a double sealing structure according to claim 1, characterized in that: The shape and size of the fixing ring (201) match the shape and size of the valve body (1), and the shape of the fixing ring (201) is circular.

5. The oil valve with a double sealing structure according to claim 1, characterized in that: The shape and size of the first sealing ring (202) match the shape and size of the fixing ring (201), and there are two sets of pads (203), with four in each set.

6. The oil valve with a double sealing structure according to claim 3, characterized in that: The shape and size of the second sealing ring (208) match the shape and size of the flange (205), and the shape of the second sealing ring (208) is circular.

7. The oil valve with a double sealing structure according to claim 1, characterized in that: The outer wall of the valve body (1) is provided with a valve seat (4), and the top of the valve seat (4) is provided with a valve stem (5).

8. The oil valve with a double sealing structure according to claim 1, characterized in that: The inner wall of the valve body (1) is provided with a polyurethane coating (3), and the shape and size of the polyurethane coating (3) match the shape and size of the valve body (1).

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