Medium-pressure gas pipeline drainage device

Abstract

The utility model provides a medium-pressure gas pipeline drainage device, relates to the technical field of drainage devices, and aims to solve the problems that when an existing drainage device is used, a connection sealing structure between drainage pipe fixing sleeves is imperfect, and the sealing performance of the device cannot be enhanced. The bottom of the body is of an arc-shaped structure. The sliding piece is slidably connected with the body. The spring is fixedly connected with the sliding piece; the pressing ring is fixedly connected with the spring; and the sealing ring is arranged on the pressing ring. When water in the pipeline is discharged, water flow falls down through the main body, the bottom of the main body is arc-shaped, smooth transition can be formed at the arc-shaped bottom, resistance and deposition are reduced, when the water flow and gas are discharged together, air pressure can be generated in the fixed part, and the sliding part is driven to move on the main body under the action of the air pressure. And the sealing ring is limited through the fixing piece, so that the sliding piece further compresses the spring when sliding, the pressure of the pressing piece on the sealing ring is increased, and the sealing between the main body and the fixing piece is tighter.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drainage device technical field, more specifically, especially relate to a middle pressure gas pipeline drainage device. BACKGROUND

[0002] The middle pressure gas pipeline refers to the gas pipeline used in the city, is divided according to pressure grade, and is generally 0.1-10MPa pipeline, is divided into different grades according to the size of pipe diameter, and is generally DN50-DN400 pipeline, and the middle pressure gas pipeline is the pipeline connected between gas delivery station and user, and is mainly used for supplying natural gas to city residents, enterprises and institutions and other users, and part of water is mixed in the pipeline when natural gas is transported in the pipeline, and water stays in the pipeline for a long time to cause pipeline corrosion, so the drainage device needs to be used at the moment.

[0003] Based on the existing technology, the existing drainage device is used by natural gas flowing in the top of the pipeline and water flowing in the bottom of the pipeline, and the drainage device is usually installed at the bottom of the pipeline, and the sealing structure between the drainage pipe fixing sleeve is not perfect during use, so the sealing property of the device cannot be enhanced. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a middle pressure gas pipeline drainage device to solve the problem that the existing drainage device is used by natural gas flowing in the top of the pipeline and water flowing in the bottom of the pipeline, and the drainage device is usually installed at the bottom of the pipeline, and the sealing structure between the drainage pipe fixing sleeve is not perfect during use, so the sealing property of the device cannot be enhanced.

[0005] The utility model discloses a middle pressure gas pipeline drainage device, which is achieved by the following specific technical means:

[0006] A middle pressure gas pipeline drainage device, comprising a drainage part, a fixing part and a sealing part.

[0007] The drainage part is a drainage device body, and the drainage part comprises: a main body, the main body is a cylindrical structure, a thread is arranged in the main body, a circular ring is arranged on the main body, and the bottom of the main body is provided as an arc structure;The fixing part is connected with the drainage part;The sealing part is installed in the fixing part, and the sealing part is installed on the drainage part, and the sealing part comprises: a sliding piece, the sliding piece is a circular ring structure, and the sliding piece is slidably connected with the main body.

[0008] Further, the drainage part further comprises:

[0009] A mounting ring, which is a circular ring structure, is fixedly installed on the main body, and the mounting ring is in contact with the sliding piece.

[0010] Further, the fixed part further comprises:

[0011] The fixed part is a cylindrical structure, a thread is arranged on the fixed part, a main body is arranged in the fixed part, and a sliding part is slidingly arranged in the fixed part.

[0012] Further, the sealing part further comprises:

[0013] The spring is connected with the main body in a sleeved mode, the spring is arranged in the fixed part, and the spring is fixedly connected with the sliding part.

[0014] Further, the sealing part further comprises:

[0015] The compression ring is a circular ring structure, the compression ring is fixedly connected with the spring, the compression ring is slidingly arranged in the fixed part, and the compression ring is slidingly arranged on the main body.

[0016] Further, the sealing part further comprises:

[0017] The sealing ring is connected with the main body in a sleeved mode, the sealing ring is arranged in the fixed part, and the sealing ring is arranged on the compression ring.

[0018] Compared with the prior art, the utility model has the advantages of the following:

[0019] 1、In the device, the sliding part and the spring are arranged, the sliding part is slidingly arranged on the main body, the spring is fixedly connected with the sliding part, and then when the device is used, the bottom part is removed from the fixed part when water is discharged in the discharge pipeline, the water flows down through the main body, the bottom part of the main body is arranged in an arc structure, the arc bottom part can form smooth transition, avoids the right angle or sharp edge, makes the fluid more smoothly flow out by gravity, reduces the resistance and accumulation, the arc structure can more evenly distribute the pressure on the pipe wall when the internal fluid pressure or external pressure is borne, reduces the risk of local damage of the pipeline, enhances the durability of the pipeline, and when the water flow and the fuel gas are discharged together, the air pressure is generated in the fixed part, the sliding part is driven to move on the main body through the action of the air pressure, the sealing ring is limited through the fixed part, the sliding part is further compressed when sliding, the pressure of the sealing ring is increased, the sealing between the main body and the fixed part is more compact. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 It is the fixed sleeve cut three-dimensional structure schematic diagram of the utility model.

[0022] Figure 3It is the main body cut sectional structure schematic diagram of the utility model.

[0023] Figure 4 It is the drainage part and sealed part dismounts sectional structure schematic diagram of the utility model.

[0024] In the drawing, the corresponding relationship of component name and drawing number is:

[0025] 1, drainage part; 101, main body; 102, mounting ring; 2, fixed part; 201, fixed piece; 202, bottom piece; 3, sealing part; 301, sliding piece; 302, spring; 303, compression ring; 304, sealing ring. Specific implementation

[0026] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.

[0027] Example:

[0028] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0029] The utility model provides a kind of medium-pressure gas pipeline drainage device, including drainage part 1, fixed part 2 and sealing part 3;Drainage part 1 is the drainage device body, and drainage part 1 includes: main body 101, main body 101 is cylindrical structure, main body 101 inside is equipped with thread, and main body 101 is equipped with circular ring, and main body 101 bottom is set as arc structure;The main body 101 here is used to drain, bottom is set as arc structure can form smooth transition, avoids right angle or sharp edge, so that fluid can be more smoothly rely on gravity to flow out, reduce resistance and siltation, arc structure when bearing internal fluid pressure or external pressure, pressure can be more evenly distributed on pipe wall, reduce the risk of local damage of pipeline, enhance the durability of pipeline;Fixed part 2 is connected with drainage part 1;Sealing part 3 is installed in fixed part 2 inside, and sealing part 3 is installed on drainage part 1, and sealing part 3 includes: sliding piece 301, sliding piece 301 is circular ring structure, and sliding piece 301 is slidably connected with main body 101;The sliding piece 301 here is used to drain through main body 101 inside, by the action of air pressure to drive on main body 101 sliding, to compress spring 302, enhance the sealing property of sealing ring 304 between main body 101 and fixed piece 201.

[0030] Among them, as Figure 2As shown, the drainage section 1 also includes a mounting ring 102, which is a circular ring structure. The mounting ring 102 is fixedly mounted on the main body 101 and contacts the sliding member 301. The mounting ring 102 is used to limit the sliding member 301. During installation, the spring is in a slightly compressed state, thereby ensuring better sealing between the sealing member 304 and the fixing member 201.

[0031] Among them, such as Figure 2 As shown, the fixing part 2 further includes: a fixing member 201, which is a cylindrical structure with threads, and the main body 101 is installed inside the fixing member 201, and a sliding member 301 is slidably installed inside the fixing member 201; the fixing member 201 is used to install the main body 101; and a bottom member 202, which is a frustum-shaped structure and is installed at the bottom inside the fixing member 201; the bottom member 202 is used to seal the fixing member 201.

[0032] Among them, such as Figure 4 As shown, the sealing part 3 further includes: a spring 302, which is fitted to the main body 101 and located inside the fixing member 201, and is fixedly connected to the sliding member 301; the spring 302 is initially in a slightly compressed state to maintain the pressure with the sealing ring 304; and a pressure ring 303, which has a circular structure, is fixedly connected to the spring 302, and is slidably mounted inside the fixing member 201 and on the main body 101. The pressure ring 303 here is used to push the sealing ring 304 under the pressure of the spring 302, ensuring a tighter seal between the main body 101 and the fixing member 201; the sealing ring 304 is fitted and connected to the main body 101, the sealing ring 304 is installed inside the fixing member 201, and the sealing ring 304 is installed on the pressure ring 303; the sealing ring 304 here is used to continuously apply a pressing force to the sealing ring 304 through the elastic reset action of the spring 302, ensuring the sealing effect between the main body 101 and the fixing member 201.

[0033] The specific usage and function of this embodiment are as follows:

[0034] The utility model discloses a bottom part is set to the arc structure, makes fluid more smoothly rely on gravity to flow out, has reduced resistance and siltation, and when water flow and gas are discharged together, completes the drainage operation to gas pipeline inside, and the fixed part 201 inside will produce air pressure, and the sliding piece 301 is moved on the main part 101 through the role of air pressure, and the sealing ring 304 is limited through the fixed part 201, makes the sliding piece 301 further compress spring 302 when sliding, increases the pressure piece 303 to the pressure of sealing ring 304, makes the sealing of main part 101 and fixed part 201 more strict.

Claims

1. A medium pressure gas pipeline drainage device, characterized by: The utility model relates to a drainage device, which comprises a drainage part (1), a fixing part (2) and a sealing part (3). The drainage part (1) is a drainage device body, and the drainage part (1) comprises a main body (101), the main body (101) is a cylindrical structure, the main body (101) is internally provided with a thread, the main body (101) is provided with a circular ring, and the bottom of the main body (101) is provided as an arc structure; the fixing part (2) is connected with the drainage part (1); the sealing part (3) is installed inside the fixing part (2) and is installed on the drainage part (1), and the sealing part (3) comprises a sliding piece (301), the sliding piece (301) is a circular ring structure, and the sliding piece (301) is in sliding connection with the main body (101).

2. A medium pressure gas pipeline drainage device according to claim 1, characterized in that: The drainage part (1) further comprises: a mounting ring (102), the mounting ring (102) is a circular ring structure, the mounting ring (102) is fixedly installed on the main body (101), and the mounting ring (102) is in contact with the sliding piece (301).

3. A medium pressure gas pipeline drainage device according to claim 2, characterised in that: The fixing part (2) further comprises: a fixing piece (201), the fixing piece (201) is a cylindrical structure, the fixing piece (201) is provided with a thread, the main body (101) is installed inside the fixing piece (201), and the sliding piece (301) is slidably installed inside the fixing piece (201); a bottom piece (202), the bottom piece (202) is a circular table structure, and the bottom piece (202) is installed at the bottom end inside the fixing piece (201).

4. A medium pressure gas pipeline drainage device according to claim 3, characterized in that: The sealing part (3) further comprises: a spring (302), the spring (302) is in sleeved connection with the main body (101), the spring (302) is inside the fixing piece (201), and the spring (302) is fixedly connected with the sliding piece (301).

5. A medium pressure gas pipeline drainage device according to claim 4, characterised in that: The sealing part (3) further comprises: a compression ring (303), the compression ring (303) is a circular ring structure, the compression ring (303) is fixedly connected with the spring (302), the compression ring (303) is slidably installed inside the fixing piece (201), and the compression ring (303) is slidably installed on the main body (101).

6. A medium pressure gas pipeline drain according to claim 5, characterised in that: The sealing part (3) further comprises: a sealing ring (304), the sealing ring (304) is in sleeved connection with the main body (101), the sealing ring (304) is installed inside the fixing piece (201), and the sealing ring (304) is installed on the compression ring (303).

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