CN205136767U - Plunger self -balancing throttle is by atmospheric valve - Google Patents
Plunger self -balancing throttle is by atmospheric valve Download PDFInfo
- Publication number
- CN205136767U CN205136767U CN201520921037.8U CN201520921037U CN205136767U CN 205136767 U CN205136767 U CN 205136767U CN 201520921037 U CN201520921037 U CN 201520921037U CN 205136767 U CN205136767 U CN 205136767U
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- valve
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- pilot valve
- pilot
- safety cover
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Abstract
The utility model provides a plunger self -balancing throttle is by atmospheric valve, through with the disk seat setting on the front end tip of valve body, smooth stopper passes through the movably setting of spring in the valve body, smooth stopper is decided to lean on on the disk seat, a pilot valve and adjustment mechanism are connected through a connecting plate in top at the valve body, set up the pilot valve case in the pilot valve in the pilot valve valve body, front end disk seat and rear end disk seat are fixed respectively on the pilot valve case, the valve body is through a pipe and pilot valve valve body intercommunication, the front end of valve body draws through one presses the pipe to be connected with the pilot valve valve body, the valve body rear end is connected with the pilot valve valve body through a delivery pipe, connect the pilot valve case with the one end of piston among the sleeving structure, the one end of the pressure regulating spring in the safety cover is connected to the other end of piston, the other end of pressure regulating spring is connected on the adjusting bolt on setting up the safety cover. The utility model discloses can effectively prevent pipe -line system because the undulant and destruction of surge pressure to pipe -line system and equipment of the pipe network abnormal pressure of transient flow production.
Description
Technical field
The utility model relates to valve technology field, especially relates to a kind of plunger self-balancing type choke stop evacuation valve.
Background technique
Flowing medium, by pipeline course of conveying, may produce abnormal pressure fluctuation, can produce larger destruction to pipe-line system and equipment.How better ducted valve being controlled automatically, needing the problem overcome with regard to having become skilled person.
Summary of the invention
In view of the above, the purpose of this utility model is to provide a kind of plunger self-balancing type choke stop evacuation valve, for solving the fluctuation of existing pipeline medium flowing pressure pipeline is easily caused brokenly to the problem of ring.
For achieving the above object and other relevant objects, the utility model provides following technological scheme:
A kind of plunger self-balancing type choke stop evacuation valve, is characterized in that: comprise valve body, valve seat, sliding plug, spring, connecting plate, pressure inlet tube, safety cover, adjusting bolt, pressure adjusting spring, pilot valve spool, front end valve seat, rear end valve seat, pilot valve valve body and discharge pipe, valve seat is arranged on the forward end of valve body, and sliding plug is arranged in valve body movably by spring, and sliding plug leans against on valve seat surely, connect a pilot valve and controlling mechanism at the top of valve body by a plate, wherein pilot valve at least comprises pilot valve spool, pilot valve valve body, front end valve seat and rear end valve seat, pilot valve spool is arranged in pilot valve valve body, front end valve seat and rear end valve seat are separately fixed on pilot valve spool, valve body is communicated with pilot valve valve body by a conduit, the front end of valve body is connected with pilot valve valve body by a pressure inlet tube, valve rear end is connected with pilot valve valve body by a discharge pipe, and regulation structure comprises a safety cover, be arranged on the pressure adjusting spring in safety cover, piston and adjusting bolt, one end of piston connects pilot valve spool, and the other end of piston is connected to one end of the pressure adjusting spring in safety cover, and the other end of pressure adjusting spring is connected in the adjusting bolt that arranges on safety cover.
Of the present utility modelly to be a little, can to automatically adjust to pipeline medium pressure with the pressure change of pipeline, thus reach pressure balance, thus avoid the situation that pipeline caused to damage because pressure medium is excessive.
Accompanying drawing explanation
The schematic diagram of the plunger self-balancing type choke stop evacuation valve that Fig. 1 provides for the utility model.
Embodiment
Refer to Fig. 1, be the schematic diagram of plunger self-balancing type choke stop evacuation valve, as shown in the figure, comprise valve body 1, valve seat 2, sliding plug 3, spring 4, connecting plate 5, pressure inlet tube 6, safety cover 7, adjusting bolt 8, pressure adjusting spring 9, pilot valve spool 11, front end valve seat 12, rear end valve seat 13, pilot valve valve body 14 and discharge pipe 15, valve seat 2 is arranged on the forward end of valve body 1, sliding plug 3 is arranged in valve body 1 by spring 4 movably, and sliding plug 3 leans against on valve seat 2 surely, connect a pilot valve and controlling mechanism at the top of valve body 1 by a plate 5, wherein pilot valve at least comprises pilot valve spool 11, pilot valve valve body 14, front end valve seat 12, rear end valve seat 13 and feeling of stress test tube 10, pilot valve spool 11 is arranged in pilot valve valve body 14, feeling of stress test tube 10 to be arranged on pilot valve and to be communicated with pilot valve valve body 14, front end valve seat 12 and rear end valve seat 13 are separately fixed on pilot valve spool 11, valve body 1 is communicated with pilot valve valve body 14 by a conduit, the front end of valve body 1 is connected with pilot valve valve body 14 by a pressure inlet tube 6, and valve body 1 rear end is connected with pilot valve valve body 14 by a discharge pipe 15, and regulation structure comprises a safety cover 7, be arranged on the pressure adjusting spring 9 of in safety cover 7, piston 16 and adjusting bolt 8, one end of piston 16 connects pilot valve spool 11, and the other end of piston 16 is connected to one end of the pressure adjusting spring 9 in safety cover 7, and the other end of pressure adjusting spring 9 is connected in the adjusting bolt 8 that arranges on safety cover 7.
Incorporated by reference to Fig. 1, the principle of this plunger self-balancing type choke stop evacuation valve is, the keying of Decompression valves senses upstream pressure by feeling of stress test tube 10 and controls moving left and right of pilot valve spool 11, thus control the closedown of main Decompression valves and open, pilot valve spool 11 contacts with rear end valve seat 13 and seals under normal circumstances, main valve is in closed condition, when Decompression valves forefront pressure P1 exceedes setting relieving pressure value, pilot valve spool 11 moves to right, in pilot valve, room is communicated with rear room and Decompression valves rear end, sliding plug 3 place valve body internal pressure declines, sliding plug 3 moves to left rapidly, main Decompression valves is opened, when the setting relieving pressure of upstream pressure lower than Decompression valves, pressure adjusting spring 9 promotes pilot valve spool 11 and moves to left, in pilot valve, room is communicated with cup and Decompression valves front end, because the area in the valve body of sliding plug 3 place is greater than before valve long-pending, valve closing, so through reciprocal adjustment repeatedly, both the pressure balance of valve body front-end and back-end can have been realized.
In concrete enforcement, the decrement that can change pressure adjusting spring 8 by adjusting bolt changes the setting relieving pressure value of Decompression valves.
Described in sum up defeated, the utility model realizes the self balancing of valve body front end and back end pressure medium by the mode of self balancing, thus ensure that the safety of production.
Claims (1)
1. a plunger self-balancing type choke stop evacuation valve, is characterized in that: comprise valve body, valve seat, sliding plug, spring, connecting plate, pressure inlet tube, safety cover, adjusting bolt, pressure adjusting spring, pilot valve spool, front end valve seat, rear end valve seat, pilot valve valve body and discharge pipe, valve seat is arranged on the forward end of valve body, and sliding plug is arranged in valve body movably by spring, and sliding plug leans against on valve seat surely, connect a pilot valve and controlling mechanism at the top of valve body by a plate, wherein pilot valve at least comprises pilot valve spool, pilot valve valve body, front end valve seat and rear end valve seat, pilot valve spool is arranged in pilot valve valve body, front end valve seat and rear end valve seat are separately fixed on pilot valve spool, valve body is communicated with pilot valve valve body by a conduit, the front end of valve body is connected with pilot valve valve body by a pressure inlet tube, valve rear end is connected with pilot valve valve body by a discharge pipe, and regulation structure comprises a safety cover, be arranged on the pressure adjusting spring in safety cover, piston and adjusting bolt, one end of piston connects pilot valve spool, and the other end of piston is connected to one end of the pressure adjusting spring in safety cover, and the other end of pressure adjusting spring is connected in the adjusting bolt that is arranged on safety cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520921037.8U CN205136767U (en) | 2015-11-19 | 2015-11-19 | Plunger self -balancing throttle is by atmospheric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520921037.8U CN205136767U (en) | 2015-11-19 | 2015-11-19 | Plunger self -balancing throttle is by atmospheric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136767U true CN205136767U (en) | 2016-04-06 |
Family
ID=55622561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520921037.8U Active CN205136767U (en) | 2015-11-19 | 2015-11-19 | Plunger self -balancing throttle is by atmospheric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454596A (en) * | 2019-07-02 | 2019-11-15 | 合肥通用机械研究院有限公司 | A kind of piston type dynamic differential pressure balancing valve |
-
2015
- 2015-11-19 CN CN201520921037.8U patent/CN205136767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454596A (en) * | 2019-07-02 | 2019-11-15 | 合肥通用机械研究院有限公司 | A kind of piston type dynamic differential pressure balancing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |