CN202708231U - Hydraulic control emulsion overflow valve - Google Patents
Hydraulic control emulsion overflow valve Download PDFInfo
- Publication number
- CN202708231U CN202708231U CN 201220249531 CN201220249531U CN202708231U CN 202708231 U CN202708231 U CN 202708231U CN 201220249531 CN201220249531 CN 201220249531 CN 201220249531 U CN201220249531 U CN 201220249531U CN 202708231 U CN202708231 U CN 202708231U
- Authority
- CN
- China
- Prior art keywords
- valve
- control
- emulsion
- overflow
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
Provided is a hydraulic control emulsion overflow valve including a valve body equipped with an overflow channel. A valve core and a return spring are arranged in the valve body, the high-pressure side joint A of the overflow channel is communicated with an emulsion manometer pipeline, the low-pressure side joint B is communicated with an emulsion back flow pipeline, the opening and closing of the overflow channel are controlled by the valve core, an isolation oil pocket is arranged in the valve core, a control valve is fixed at the upper part of the valve body, the control valve is a pilot type overflow valve or a proportion control valve, and the pressure oil port P of the pilot type overflow valve or the proportion control valve is communicated with the isolation oil pocket. The external side of the valve core of the hydraulic control emulsion overflow valve is provided with a valve pocket. The hydraulic control emulsion overflow valve performs the pilot control on hydraulic oil, and the main oil way adopts emulsion or other water-base mediums, thus, the main oil way machined by a simple technology can be made of stainless steel materials, and the control valve (pilot valve) machined by a complex technology is made from standard hydraulic members, thereby fundamentally avoiding the difficulties on technologies and having the same performance compared with the standard hydraulic members. The accurate control can be realized if the pilot valve is substituted by the proportioning valve, thus, the control accuracy and the control effect can be improved.
Description
Technical field
The utility model relates to a kind of overflow-valve device, is specially a kind of hydraulic control emulsified liquid relief valve for control emulsion system pressure.
Background technique
The relief valve element that is used for the water-based high pressure system of prior art adopts carbon steel material to make usually, and the corrosion problem when contacting different emulsifiable solution mediums owing to carbon steel can't solve, and therefore, in use need make regular check on replacing, causes very large waste.As use other material instead, then because the processing technology of hydrovalve element is very difficult, be difficult to selection.Therefore this problem is not resolved for a long time.
Summary of the invention
This practicality has designed a kind of hydraulic control emulsified liquid relief valve for above-mentioned prior art problem, has solved the corrosion that in Environmental Conditions emulsified liquid causes the direct contact of hydrovalve element.
A kind of hydraulic control emulsified liquid relief valve, comprise the valve body with overflow ducts, spool and Returnning spring are arranged in valve body, the high pressure side interface A mouth of described overflow ducts is communicated with the emulsified liquid pressure piping, low voltage side interface B mouth is communicated with the emulsified liquid return line, the Push And Release of described overflow ducts is controlled by spool, it is characterized in that being provided with in the described spool isolation oil pocket, be fixed with control valve on valve body top, described control valve is pilot operated compound relief valve or proportional control valve, and the pressure hydraulic fluid port P mouth of described pilot operated compound relief valve or proportional control valve is communicated with the isolation oil pocket.
Hydraulic control emulsified liquid relief valve of the present utility model is by providing pilot control to hydraulic oil, and working connection is also with emulsified liquid or other aqueous medium, so that the simple working connection of processing technology can adopt stainless steel, and the hydraulic element of the control valve of processing technology complexity (pilot valve) selection standard, fundamentally avoided technologic difficult point, and performance is equal to the standard hydraulic element.If pilot valve is replaced with Proportional valve, can realize accurate control, so that control accuracy is higher, the control better effects if.
Description of drawings
Fig. 1 is the structural representation of hydraulic control emulsification relief valve.
Among the figure, the 1-valve body, the 2-valve pocket, the 3-spool, the 4-spring, 5-isolates oil pocket, 6-pilot operated compound relief valve.
Embodiment
Such as Fig. 1, emulsified liquid relief valve of the present utility model comprises valve body 1, valve pocket 2 is arranged in valve body 1, spool 3 is placed in the valve pocket 2, at spool spring 4 is housed, is provided with isolation oil pocket 5 in the spool 3, be fixed with a control valve on valve body top relief valve is carried out pilot control, adopt a pilot operated compound relief valve 6 in the present embodiment, if the adoption rate valve is as pilot-actuated valve but control accuracy is had relatively high expectations.The P mouth of this pilot operated compound relief valve is communicated with isolation oil pocket 5, on the valve body 1 overflow ducts is arranged, and wherein the A mouth of overflow ducts connects the emulsified liquid pressure piping, and the B mouth connects the emulsified liquid return line, the open and close of spool 3 controlling water kick passages.The P mouth of pilot operated compound relief valve 6 connects the hydraulic fluid pressure pipeline, and the T mouth connects the hydraulic oil return line.Compression area S1 in the spool 3 in the isolation oil pocket 5 is identical with the compression area S2 of isolation oil pocket 5 bottoms.When the oil pressure relief of described hydraulic control emulsified liquid relief valve is designed to K, the oil pressure relief value of pilot operated compound relief valve 6 is set as K, this moment, the P mouth place pressure of pilot operated compound relief valve 6 was K, isolation oil pocket 5 is logical with the P mouth, so the pressure in the chamber also is K.Since spool 3 at the compression area S1 at A mouth place with identical at the compression area S2 of isolation oil pocket 5 bottoms, if so A mouth place emulsified liquid pressure be less than or equal to K, spool is in closed condition; If A mouth place emulsified liquid pressure is greater than K, then spool is opened, and realizes overflow.
Because the isolation oil pockets 5 in the stainless steel spool 3 do not have UNICOM with the emulsified liquid pipelines, so pilot operated compound relief valve 6 can not touch emulsified liquid, thereby prevents that effectively emulsified liquid is to the corrosion of relief valve.
Described valve body 1, valve pocket 2 all adopt stainless steel material to make with spool 3.
Claims (1)
1. hydraulic control emulsified liquid relief valve, comprise the valve body (1) with overflow ducts, spool (3) and Returnning spring (4) are arranged in valve body, the high pressure side interface A mouth of described overflow ducts is communicated with the emulsified liquid pressure piping, low voltage side interface B mouth is communicated with the emulsified liquid return line, the Push And Release of described overflow ducts is controlled by spool (3), it is characterized in that being provided with in the described spool (3) isolation oil pocket (5), be fixed with control valve on valve body (1) top, described control valve is pilot operated compound relief valve (6) or proportional control valve, and the pressure hydraulic fluid port P mouth of described pilot operated compound relief valve or proportional control valve is communicated with isolation oil pocket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249531 CN202708231U (en) | 2012-05-30 | 2012-05-30 | Hydraulic control emulsion overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249531 CN202708231U (en) | 2012-05-30 | 2012-05-30 | Hydraulic control emulsion overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708231U true CN202708231U (en) | 2013-01-30 |
Family
ID=47588537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249531 Expired - Lifetime CN202708231U (en) | 2012-05-30 | 2012-05-30 | Hydraulic control emulsion overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283423A (en) * | 2020-11-13 | 2021-01-29 | 哈尔滨工业大学 | Pressure control device for water-based liquid medium |
| CN112524262A (en) * | 2020-11-30 | 2021-03-19 | 重庆红江机械有限责任公司 | Heavy oil high pressure common rail electric control pressure regulating valve |
-
2012
- 2012-05-30 CN CN 201220249531 patent/CN202708231U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283423A (en) * | 2020-11-13 | 2021-01-29 | 哈尔滨工业大学 | Pressure control device for water-based liquid medium |
| CN112524262A (en) * | 2020-11-30 | 2021-03-19 | 重庆红江机械有限责任公司 | Heavy oil high pressure common rail electric control pressure regulating valve |
| CN112524262B (en) * | 2020-11-30 | 2023-02-17 | 重庆红江机械有限责任公司 | Heavy oil high pressure common rail electric control pressure regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE473477T1 (en) | VALVE, ESPECIALLY PROPORTIONAL PRESSURE LIMITING VALVE | |
| ATE459836T1 (en) | FLOW CONTROL VALVE FOR COOLING SYSTEM | |
| WO2012128797A3 (en) | Electro-proportional pilot operated poppet valve with pressure compensation | |
| GB2500843A (en) | BOP stack with a universal intervention interface | |
| EP2071195A3 (en) | Hydraulic circuit with load holding valves operated by external pilot pressure | |
| MX2013010828A (en) | Back pressure regulating valve with valve cartridge. | |
| BRPI0509915A (en) | apparatus and method for relieving pressure surges | |
| ATE549563T1 (en) | HYDRAULIC VALVE DEVICE | |
| RU2019109979A (en) | SYSTEMS AND METHODS FOR PUMPING WORKING FLUIDS INTO A HIGH PRESSURE PUMPING LINE | |
| CN202708231U (en) | Hydraulic control emulsion overflow valve | |
| CN204344557U (en) | A kind of ultrahigh pressure pilot operated compound relief valve | |
| CN203584781U (en) | Cartridge pilot relief valve with one-way valve | |
| WO2012082355A3 (en) | Hydraulic system having load lock valve | |
| MX367175B (en) | Proportional pressure controller with isolation valve assembly. | |
| WO2011153985A3 (en) | Control device for an extracting unit in the work face of a mine | |
| CN107255095B (en) | The reversed aqueous medium hydraulic control one-way valve of ultralow pressure | |
| CN102678990A (en) | Hydraulic control emulsified liquid overflow valve | |
| CN202432014U (en) | Two-position five-way guiding type mechanical valve | |
| CN105065741A (en) | Self-operated segmented pressure control valve | |
| CN204459310U (en) | Novel noise eliminating check valve | |
| CN104074983A (en) | A self-operated bidirectional fast stop valve | |
| CN204591820U (en) | A kind of multifunction hydraulic substation | |
| EP1531273A3 (en) | Counterbalance valve, and control unit and hydraulically powered system comprising the same | |
| CN204420225U (en) | A kind of safety check | |
| CN207018282U (en) | The reverse aqueous medium hydraulic control one-way valve of ultralow pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |