CN219062556U - Pressure relief valve for steam overpressure protection - Google Patents
Pressure relief valve for steam overpressure protection Download PDFInfo
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- CN219062556U CN219062556U CN202222861732.2U CN202222861732U CN219062556U CN 219062556 U CN219062556 U CN 219062556U CN 202222861732 U CN202222861732 U CN 202222861732U CN 219062556 U CN219062556 U CN 219062556U
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- relief valve
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Abstract
The utility model discloses a pressure relief valve for protecting steam from overpressure, which relates to the technical field of pressure relief valves and comprises a body, wherein a pressure relief opening is formed in one side of the body, a connecting port is formed in the other side of the body, a film is installed at the middle position inside the body, an installation block is arranged at the top end of the film, the bottom end of the installation block penetrates through the top end of the film and is connected with a movable column, a sealing plug is installed at the bottom end of the movable column, and an adjusting structure is arranged at the top end of the installation block. According to the device, the extending length of the screw rod is adjusted by rotating the screw rod, so that the fixed block can be driven to move up and down, the fixed block can be prevented from rotating due to the existence of the limiting rod, and the elastic pressure of the spring block can be adjusted under the adjustment of the height of the fixed block, so that the device can perform stable pressure relief work, and the device is simple in operation, stable in structure and convenient to use.
Description
Technical Field
The utility model relates to the technical field of pressure relief valves, in particular to a pressure relief valve for vapor overpressure protection.
Background
The pressure relief valve is a valve which can be automatically opened and closed according to the working pressure of the system, is generally installed on equipment or a pipeline of a closed system to protect the safety of the system, in a steam connecting pipeline, in order to enable steam to stably flow in the pipeline, the pressure relief valve is required to be installed to enable the internal pressure of the pipeline to be stable, the traditional pressure relief valve is mainly opened and closed automatically by utilizing the elastic pressure of a spring in the use process, and a structure for adjusting the elastic pressure of the spring is lacked, so that the pressure relief valve cannot be adjusted according to the pressure requirement of the internal pipeline, and under the long-time use, the pressure relief valve still has the pressure relief condition under the condition of smaller internal pressure of the pipeline, so that the internal pressure of the pipeline is reduced.
Disclosure of Invention
The utility model aims to provide a relief valve for vapor overpressure protection, so as to solve the problem that the elastic pressure cannot be adjusted in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a relief valve for steam overpressure protection, includes the body, the pressure release mouth has been seted up to one side of body, and the connector has been seted up to the opposite side of body, the inside intermediate position department of body installs the film, and the top of film is provided with the installation piece, the bottom of installation piece runs through the film top and is connected with the movable column, and the sealing plug is installed to the movable column bottom, the top of installation piece is provided with adjusting structure;
the adjusting structure further comprises a fixed block, the fixed block is arranged above the inside of the body, the two sides of the top end of the inside of the body are respectively provided with a limiting rod, the bottom end of the limiting rod penetrates through the top end of the fixed block and extends to the lower side of the fixed block, the bottom end of the fixed block is connected with a spring block through welding, a through hole is formed in the central position of the top end of the body, a screw rod is arranged at the top end of the body, and the bottom end of the screw rod penetrates through the bottom end of the inside of the through hole and is connected with the top end of the fixed block through a bearing.
Preferably, the bottom of film is provided with protective structure, protective structure still includes the protection film, the bottom at the film is installed to the protection film, the sealing block is installed to the top in movable column outside.
Preferably, the outer side of the sealing block is contacted with the inner wall of the body, and the sealing block is of an annular structure made of rubber materials.
Preferably, the protective film is an annular structure made of a heat insulation material, and the protective film covers the bottom end surface of the film.
Preferably, the outer side of the screw rod is contacted with the inner wall of the through hole, and the inner wall of the through hole is provided with internal threads matched with the outer side of the screw rod.
Preferably, the clamping block is installed through welding of the body, the protection block is connected to the outer side of the clamping block through threads, and the screw rod is arranged in the clamping block.
Preferably, the installation block is concave, the bottom end of the spring block penetrates through the top end of the installation block and is connected with the bottom end inside the installation block through welding, and the outer side of the sealing plug is in sealing contact with one end inside the connecting port.
Compared with the related art, the pressure relief valve for the steam overpressure protection has the following beneficial effects:
the utility model provides the screw rod and the limiting rod, the extending length of the screw rod is adjusted by rotating the screw rod, so that the fixed block can be driven to move up and down, the phenomenon of rotation of the fixed block can be prevented by the aid of the limiting rod, the elastic pressure of the spring block can be adjusted under the condition that the height of the fixed block is adjusted, and the device can perform stable pressure relief work, is simple in operation, stable in structure and convenient to use.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional elevation view of the present utility model;
fig. 3 is a partially enlarged schematic view of the adjusting structure of the present utility model.
In the figure: 1. a pressure relief port; 2. a body; 3. a connection port; 4. a protective block; 5. a movable column; 6. a sealing plug; 7. a film; 8. a mounting block; 9. a fixed block; 10. a clamping block; 11. a limit rod; 12. a spring block; 13. a protective film; 14. a sealing block; 15. a screw rod; 16. and a through hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: referring to fig. 1-3, a pressure relief valve for vapor overpressure protection comprises a body 2, wherein a pressure relief opening 1 is formed in one side of the body 2, a connecting opening 3 is formed in the other side of the body 2, a thin film 7 is installed at the middle position inside the body 2, an installation block 8 is arranged at the top end of the thin film 7, the bottom end of the installation block 8 penetrates through the top end of the thin film 7 and is connected with a movable column 5, a sealing plug 6 is installed at the bottom end of the movable column 5, and an adjusting structure is arranged at the top end of the installation block 8;
the clamping block 10 is arranged on the body 2 through welding, the outer side of the clamping block 10 is connected with the protection block 4 through threads, and the screw rod 15 is arranged in the clamping block 10;
the mounting block 8 is concave in shape, the bottom end of the spring block 12 penetrates through the top end of the mounting block 8 and is connected with the bottom end inside the mounting block 8 through welding, and the outer side of the sealing plug 6 is in sealing contact with one end inside the connecting port 3;
referring to fig. 1-3, a pressure relief valve for protecting vapor from overpressure further comprises an adjusting structure, the adjusting structure further comprises a fixed block 9, the fixed block 9 is arranged above the inside of the body 2, two sides of the top end of the inside of the body 2 are respectively provided with a limit rod 11, the bottom end of the limit rod 11 penetrates through the top end of the fixed block 9 and extends to the lower side of the fixed block 9, the bottom end of the fixed block 9 is connected with a spring block 12 through welding, a through hole 16 is formed in the central position of the top end of the body 2, a screw rod 15 is arranged at the top end of the body 2, and the bottom end of the screw rod 15 penetrates through the bottom end of the inside of the through hole 16 and is connected with the top end of the fixed block 9 through a bearing;
the outer side of the screw rod 15 is contacted with the inner wall of the through hole 16, and the inner wall of the through hole 16 is provided with internal threads matched with the outer side of the screw rod 15;
specifically, as shown in fig. 1, 2 and 3, by the presence of the screw rod 15 and the through hole 16, the screw rod 15 can be made to move up and down inside the through hole 16 by rotating the screw rod 15 by utilizing the threaded connection relationship of the screw rod 15 and the through hole 16, so that the height of the fixed block 9 can be adjusted, and the fixed block 9 can be made to move stably and vertically down by the presence of the limit rod 11, and the elastic pressure of the spring block 12 can be adjusted by moving the fixed block 9, so that the elastic pressure adjusting function of the device can be realized.
Example 2: the bottom end of the film 7 is provided with a protective structure, the protective structure further comprises a protective film 13, the protective film 13 is arranged at the bottom end of the film 7, and a sealing block 14 is arranged above the outer side of the movable column 5;
the outer side of the sealing block 14 is contacted with the inner wall of the body 2, and the sealing block 14 is of an annular structure made of rubber materials;
the protective film 13 is in an annular structure made of a heat insulation material, and the protective film 13 covers the bottom end surface of the film 7;
specifically, as shown in fig. 2, since the device is installed on the steam pipeline, the inside has higher temperature, so in order to improve the service life of the device, the film 7 is prevented from being damaged, a better sealing effect can be achieved by the existence of the sealing block 14, the film 7 is prevented from being damaged due to the fact that steam is directly contacted with the film 7, a better heat insulation effect can be achieved by the existence of the sealing block 14, the protection effect of the film 7 is further improved, and the service life of the device is prolonged.
Working principle: as shown in fig. 1-3, the device is connected with a steam pipeline by utilizing the connection port 3, and is connected with the pressure release pipeline by utilizing the pressure release port 1, when the pressure in the connection port 3 exceeds a protection value, the movable column 5 can be driven to move upwards as a whole under the action of the pressure, so that the body 2 is extruded, the connection port 3 is communicated with the pressure release port 1, steam can be discharged through the pressure release port 1 to release the pressure, then when the pressure in the connection port 3 is reduced to be stable, the movable column 5 can be reset under the action of the spring block 12 to seal the connection port 3, so that the automatic pressure release function of the device is realized, then in order to facilitate the regulation of the elastic pressure of the device, the screw 15 and the through hole 16 are arranged, the screw 15 can be moved up and down in the through hole 16 by utilizing the threaded connection relation of the screw 15 and the through hole 16, so that the height of the fixed block 9 can be regulated, and the fixed block 9 can be stably put down by the existence of the limit rod 11, and the elastic pressure of the fixed block 9 can be regulated by the spring block 12;
finally, because the device is installed on a steam pipeline, the inside has higher temperature, so in order to improve the service life of the device, the film 7 is prevented from being damaged, a better sealing effect can be achieved by the existence of the sealing block 14, the film 7 is prevented from being directly contacted with the film 7, the film 7 is damaged, a better heat insulation effect can be achieved by the existence of the sealing block 14, the protection effect of the film 7 is further improved, and the service life of the device is prolonged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A pressure relief valve for vapour overpressure protection, comprising a body (2), characterized in that: the pressure relief device comprises a body (2), wherein a pressure relief opening (1) is formed in one side of the body (2), a connecting port (3) is formed in the other side of the body (2), a film (7) is arranged in the middle position inside the body (2), an installation block (8) is arranged at the top end of the film (7), the bottom end of the installation block (8) penetrates through the top end of the film (7) and is connected with a movable column (5), a sealing plug (6) is arranged at the bottom end of the movable column (5), and an adjusting structure is arranged at the top end of the installation block (8);
the adjusting structure further comprises a fixed block (9), the fixed block (9) is arranged above the inside of the body (2), limiting rods (11) are arranged on two sides of the top end of the inside of the body (2), the bottom ends of the limiting rods (11) penetrate through the top ends of the fixed block (9) and extend to the lower portion of the fixed block (9), the bottom ends of the fixed block (9) are connected with spring blocks (12) through welding, through holes (16) are formed in the central position of the top ends of the body (2), screw rods (15) are arranged on the top ends of the body (2), and the bottom ends of the screw rods (15) penetrate through the bottom ends of the inside of the through holes (16) and are connected with the top ends of the fixed block (9) through bearings.
2. A pressure relief valve for vapor overpressure protection as set forth in claim 1, wherein: the bottom of film (7) is provided with protective structure, protective structure still includes protection film (13), protection film (13) are installed in the bottom of film (7), sealing block (14) are installed to the top in movable column (5) outside.
3. A pressure relief valve for vapor overpressure protection as set forth in claim 2, wherein: the outer side of the sealing block (14) is contacted with the inner wall of the body (2), and the sealing block (14) is of an annular structure made of rubber materials.
4. A pressure relief valve for vapor overpressure protection as set forth in claim 2, wherein: the protective film (13) is of an annular structure made of a heat insulation material, and the protective film (13) covers the bottom end surface of the film (7).
5. A pressure relief valve for vapor overpressure protection as set forth in claim 1, wherein: the outer side of the screw rod (15) is contacted with the inner wall of the through hole (16), and the inner wall of the through hole (16) is provided with internal threads matched with the outer side of the screw rod (15).
6. A pressure relief valve for vapor overpressure protection as set forth in claim 1, wherein: the body (2) is provided with a clamping block (10) through welding, the outer side of the clamping block (10) is connected with a protection block (4) through threads, and the screw rod (15) is arranged in the clamping block (10).
7. A pressure relief valve for vapor overpressure protection as set forth in claim 1, wherein: the installation block (8) is concave in shape, the bottom end of the spring block (12) penetrates through the top end of the installation block (8) and is connected with the bottom end inside the installation block (8) through welding, and the outer side of the sealing plug (6) is in sealing contact with one end inside the connecting port (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222861732.2U CN219062556U (en) | 2022-10-28 | 2022-10-28 | Pressure relief valve for steam overpressure protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222861732.2U CN219062556U (en) | 2022-10-28 | 2022-10-28 | Pressure relief valve for steam overpressure protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219062556U true CN219062556U (en) | 2023-05-23 |
Family
ID=86345675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222861732.2U Active CN219062556U (en) | 2022-10-28 | 2022-10-28 | Pressure relief valve for steam overpressure protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219062556U (en) |
-
2022
- 2022-10-28 CN CN202222861732.2U patent/CN219062556U/en active Active
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