CN211715801U - Internal feedback self-operated pressure regulating valve - Google Patents
Internal feedback self-operated pressure regulating valve Download PDFInfo
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- CN211715801U CN211715801U CN202020351944.4U CN202020351944U CN211715801U CN 211715801 U CN211715801 U CN 211715801U CN 202020351944 U CN202020351944 U CN 202020351944U CN 211715801 U CN211715801 U CN 211715801U
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- tray
- corrugated pipe
- valve body
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Abstract
The utility model discloses an internal feedback self-operated pressure regulating valve, which comprises a valve body, a valve cover, a valve rod and a corrugated pipe actuator; the valve is characterized in that a valve seat is arranged on the valve body; the valve body is also provided with an installation step, a guide sleeve is installed on the installation step, the guide sleeve is fixedly installed on the valve body through a valve cover, and the valve cover is fixedly connected with the valve body through a bolt; the corrugated pipe actuator is fixedly arranged on the valve cover through welding; and a tray is arranged in the corrugated pipe actuator. The utility model discloses a set up the medium flow path on uide bushing and valve gap, make the medium pass through the medium flow path and get into bellows executor, promote the tray action through medium pressure, drive case up-and-down motion to adjust medium pressure through control medium flow, through the mode of interior pressure of getting, simple to operate, rational in infrastructure, reduction leakage point increases the probability.
Description
Technical Field
The utility model relates to a valve field specifically indicates an interior feedback self-operated pressure regulating valve.
Background
The self-operated regulating valve drives the valve to automatically work by taking the pressure and the temperature of the medium flowing through the valve as energy sources without an external power supply and a secondary instrument, and is also called as a self-operated control valve, wherein a feedback signal (pressure, differential pressure and temperature) at the output end of the valve is transmitted to an actuating mechanism through a signal pipe to drive the valve clack to change the opening degree of the valve, so that the purposes of regulating the pressure, the flow and the temperature are achieved; the general self-operated regulating valve needs to open a hole on a pipeline behind the valve, is connected with an actuating mechanism through a pressure guide pipe, and regulates the pressure of the actuating mechanism through an external medium so as to regulate the pressure of the medium; however, the valve is troublesome to install in this way, and the probability of increasing leakage points can be increased by feeding back the pressure behind the valve through the pressure guide pipe. Therefore, an internal feedback self-operated pressure regulating valve is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an internal feedback formula of relying on oneself pressure regulating valve in order to solve above problem.
In order to achieve the above purpose, the utility model provides a following technical scheme: an internal feedback self-operated pressure regulating valve comprises a valve body, a valve cover, a valve rod and a corrugated pipe actuator; the valve is characterized in that a valve seat is arranged on the valve body; the valve body is also provided with an installation step, a guide sleeve is installed on the installation step, the guide sleeve is fixedly installed on the valve body through a valve cover, and the valve cover is fixedly connected with the valve body through a bolt; the corrugated pipe actuator is fixedly arranged on the valve cover through welding; a tray is installed in the corrugated pipe actuator, one end of the valve rod is fixedly connected with the tray through a bolt, and the other end of the valve rod sequentially penetrates through the valve cover and the guide sleeve valve seat and then is provided with a valve core; the corrugated pipe is installed on the tray, and the other end of the corrugated pipe is connected with a limiting block.
Further preferably, the guide sleeve and the valve cap are provided with medium flow paths, and the medium flow path on the guide sleeve is communicated with the medium flow path on the valve cap.
Further preferably, the bellows actuator comprises an upper cover and a lower cover, the bellows actuator is fixedly connected with the valve seat through the lower cover, and the upper cover and the lower cover are fixedly connected through a bolt; the lower cover is provided with a limiting step, a limiting block is arranged on the limiting step, and the tray is movably arranged in the corrugated pipe actuator through the limiting block and the corrugated pipe.
Preferably, the upper cover is provided with an adjusting thread, the upper cover is provided with a pressure adjusting disc through the adjusting thread, and the top of the upper cover is also provided with a dust cover; a spring guide disc is fixedly arranged on the pressure adjusting disc through a bolt, and a spring limiting step is arranged on the spring guide disc; and the tray is provided with a boss matched with the spring limiting step.
Further preferably, an adjusting spring is installed between the spring guide disc and the tray through the matching of the spring limiting step and the boss.
The utility model discloses a set up the medium flow path on uide bushing and valve gap, make the medium pass through the medium flow path and get into bellows executor, promote the tray action through medium pressure, drive case up-and-down motion to adjust medium pressure through control medium flow, through the mode of interior pressure of getting, simple to operate, rational in infrastructure, reduction leakage point increases the probability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the enlarged partial structure of the present invention;
FIG. 3 is a schematic view of the enlarged partial structure of the present invention;
fig. 4 is a schematic diagram of the local enlarged structure of the present invention.
Illustration of the drawings: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a bellows actuator; 5. a valve seat; 6. mounting a step; 7. a guide sleeve; 8. a tray; 9. a valve core; 10. a bellows; 11. a limiting block; 12. a medium flow path; 13. an upper cover; 14. a lower cover; 15. a limiting step; 16. adjusting the screw thread; 17. a pressure regulating disk; 18. a dust cover; 19. a spring guide plate; 20. a spring limiting step; 21. a boss; 22. the spring is adjusted.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the internal feedback self-operated pressure regulating valve of the present embodiment includes a valve body 1, a valve cap 2, a valve rod 3, and a bellows actuator 4; the valve is characterized in that a valve seat 5 is arranged on the valve body 1; the valve body 1 is further provided with an installation step 6, a guide sleeve 7 is installed on the installation step 6, the guide sleeve 7 is fixedly installed on the valve body 1 through a valve cover 2, and the valve cover 2 is fixedly connected with the valve body 1 through a bolt; the bellows actuator 4 is fixedly arranged on the valve cover 2 by welding; a tray 8 is installed in the corrugated pipe actuator 4, one end of the valve rod 3 is fixedly connected with the tray 8 through a bolt, and the other end of the valve rod 3 sequentially penetrates through the valve cover 2 and the valve seat 5 of the guide sleeve 7 and then is provided with a valve core 9; a corrugated pipe 10 is arranged on the tray 8, and the other end of the corrugated pipe 10 is connected with a limiting block 11; the guide sleeve 7 and the valve cover 2 are both provided with a medium flow path 12, and the medium flow path 12 on the guide sleeve 7 is communicated with the medium flow path 12 on the valve cover 2; the bellows actuator 4 comprises an upper cover 13 and a lower cover 14, the bellows actuator 4 is fixedly connected with the valve seat 5 through the lower cover 14, and the upper cover 13 and the lower cover 14 are fixedly connected through bolts; the lower cover 14 is provided with a limiting step 15, a limiting block 11 is arranged on the limiting step 15, and the tray 8 is movably arranged in the corrugated pipe actuator 4 through the limiting block 11 and the corrugated pipe 10; an adjusting thread 16 is arranged on the upper cover 13, a pressure adjusting disc 17 is arranged on the upper cover 13 through the adjusting thread 16, and a dust cover 18 is further arranged on the top of the upper cover 13; a spring guide disc 19 is fixedly installed on the pressure adjusting disc 17 through bolts, and a spring limiting step 20 is arranged on the spring guide disc 19; a boss 21 matched with the spring limiting step 20 is arranged on the tray 8; an adjusting spring 22 is installed between the spring guide disc 19 and the tray 8 through the matching of a spring limiting step 20 and a boss 21.
The working process of the embodiment: when the corrugated pipe actuator is used, a medium flows into the valve body 1 from the front of the valve, flows out of the valve body 1 after being throttled by matching the valve seat 5 and the valve core 9, flows into the lower cavity of the corrugated pipe actuator 4 through the guide sleeve 7 and the medium flow path 12 on the valve cover 2, acts on the corrugated pipe 10 and the tray 8, drives the valve rod 3 through the tray 8, and drives the valve core 9 through the valve rod 3, so that the valve core 9 makes corresponding displacement. Thereby achieving the purpose of automatically controlling the flow; if the pressure behind the valve rises, the force acting on the corrugated pipe 10 and the tray 8 is increased, so that the adjusting spring 22 is compressed, the valve rod 3 is driven, the flow area between the valve seat 5 and the valve core 9 is reduced, and the pressure behind the valve is reduced until the pressure is reduced to a set value; if the pressure after the valve is lower than the set value, the force acting on the bellows 10 and the tray 8 is reduced, and the valve stem 3 is pushed by the tray 8 due to the reaction force of the adjusting spring 22, so that the flow area between the valve seat 5 and the valve element 9 is increased until the pressure before the valve rises to the set value, which can be achieved by adjusting the position of the spring guide plate 19 on the upper cover 14.
The utility model has the advantages that: the medium flow path 12 is arranged on the guide sleeve 7 and the valve cover 2, so that a medium enters the corrugated pipe actuator 4 through the medium flow path 12, the tray 8 is pushed to act through medium pressure, the valve core 9 is driven to move up and down, the flow area between the valve core 9 and the valve seat 5 is adjusted, and the purpose of automatically controlling the medium flow is achieved, so that the pressure behind the valve can be automatically adjusted, and the pressure behind the valve is always in a set value; the internal pressure taking mode is adopted, so that the installation is convenient, the structure is reasonable, and the increase probability of leakage points is reduced; the spring limiting step 20 is arranged on the spring guide disc 19, and the boss 21 is arranged on the tray 8, so that the adjusting spring 22 is convenient to mount and has a limiting effect on the adjusting spring 22, and the position of the adjusting spring 22 is prevented from deviating in use; the pressure set value can be adjusted by providing the adjusting screw 16 on the upper cover 14, adjusting the position of the pressure adjusting disk 17 by the adjusting screw 16, and controlling the contraction force of the adjusting spring 22 by the position of the pressure adjusting disk 17.
The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.
Claims (5)
1. An internal feedback self-operated pressure regulating valve comprises a valve body (1), a valve cover (2), a valve rod (3) and a corrugated pipe actuator (4); the valve is characterized in that a valve seat (5) is arranged on the valve body (1); the valve body (1) is further provided with an installation step (6), a guide sleeve (7) is installed on the installation step (6), the guide sleeve (7) is fixedly installed on the valve body (1) through a valve cover (2), and the valve cover (2) is fixedly connected with the valve body (1) through a bolt; the corrugated pipe actuator (4) is fixedly arranged on the valve cover (2) through welding; a tray (8) is installed in the corrugated pipe actuator (4), one end of the valve rod (3) is fixedly connected with the tray (8) through a bolt, and the other end of the valve rod (3) sequentially penetrates through the valve cover (2) and the guide sleeve (7) and the valve seat (5) and then is provided with a valve core (9); install bellows (10) on tray (8), bellows (10) other end is connected with stopper (11).
2. The internal feedback self-operated pressure regulating valve according to claim 1, wherein: the guide sleeve (7) and the valve cover (2) are both provided with medium flow paths (12), and the medium flow paths (12) on the guide sleeve (7) are communicated with the medium flow paths (12) on the valve cover (2).
3. The internal feedback self-operated pressure regulating valve according to claim 1, wherein: the bellows actuator (4) comprises an upper cover (13) and a lower cover (14), the bellows actuator (4) is fixedly connected with the valve seat (5) through the lower cover (14), and the upper cover (13) is fixedly connected with the lower cover (14) through a bolt; the lower cover (14) is provided with a limiting step (15), the limiting step (15) is provided with a limiting block (11), and the tray (8) is movably arranged in the corrugated pipe actuator (4) through the limiting block (11) and the corrugated pipe (10).
4. The internal feedback self-operated pressure regulating valve according to claim 3, wherein: an adjusting thread (16) is arranged on the upper cover (13), a pressure adjusting disc (17) is installed on the upper cover (13) through the adjusting thread (16), and a dust cover (18) is further installed at the top of the upper cover (13); a spring guide disc (19) is fixedly installed on the pressure adjusting disc (17) through bolts, and a spring limiting step (20) is arranged on the spring guide disc (19); and a boss (21) matched with the spring limiting step (20) is arranged on the tray (8).
5. The internal feedback self-operated pressure regulating valve according to claim 4, wherein: an adjusting spring (22) is installed between the spring guide disc (19) and the tray (8) through the matching of a spring limiting step (20) and a boss (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020351944.4U CN211715801U (en) | 2020-03-19 | 2020-03-19 | Internal feedback self-operated pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020351944.4U CN211715801U (en) | 2020-03-19 | 2020-03-19 | Internal feedback self-operated pressure regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN211715801U true CN211715801U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020351944.4U Active CN211715801U (en) | 2020-03-19 | 2020-03-19 | Internal feedback self-operated pressure regulating valve |
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| CN (1) | CN211715801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483105A (en) * | 2021-08-04 | 2021-10-08 | 西安航天动力研究所 | Inlet pressure self-driven slowly-closed slowly-opened stop valve |
-
2020
- 2020-03-19 CN CN202020351944.4U patent/CN211715801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483105A (en) * | 2021-08-04 | 2021-10-08 | 西安航天动力研究所 | Inlet pressure self-driven slowly-closed slowly-opened stop valve |
| CN113483105B (en) * | 2021-08-04 | 2022-07-05 | 西安航天动力研究所 | Inlet pressure self-driven slow-closing slow-opening type stop valve |
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