CN2055890U - Diaphragm pressure reduction valve - Google Patents
Diaphragm pressure reduction valve Download PDFInfo
- Publication number
- CN2055890U CN2055890U CN 89209562 CN89209562U CN2055890U CN 2055890 U CN2055890 U CN 2055890U CN 89209562 CN89209562 CN 89209562 CN 89209562 U CN89209562 U CN 89209562U CN 2055890 U CN2055890 U CN 2055890U
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- China
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- valve body
- valve
- pressure
- active chamber
- elastic diaphragm
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Abstract
The utility model relates to a diaphragm type pressure reduction valve composed of a valve cover (3), a valve body (7), etc. The utility model is characterized in that the utility model is divided into a working chamber and a hydraulic controller which are separated from each other by an elastic diaphragm (5). A pressure regulating lever (6) is arranged in the working chamber, one end of the pressure regulating lever (6) is tightly matched with an inlet, and the other end is connected with a push and pull rod (1) of the hydraulic controller. The hydraulic variation causes the elastic diaphragm to deform, which drives the push and pull rod to move up and down so as to control the input flow rate through the pressure regulating lever, and thus the outlet pressure and the flow rate are kept stable. The bottom of the valve body is additionally provided with a heating electric stove with a view to the requirement for conveying the medium with high viscosity.
Description
The utility model be belong to high viscosity coefficient liquid medium delivery pipeline system handle the technical field of the excess-flow valve of close mechanism by the energy of flow of wherein flowing medium.
Reduction valve is a device of realizing decompression control in gas, the liquid pipeline conveying.Its performance index mainly contain: two of sensitivity, stability.When using it for high viscosity coefficient liquid medium delivery pipeline system, then require it also must possess high temperature resistant, high-voltage performance, also need have bigger pressure regulation ratio sometimes.At present, three kinds of reduction valve selling on the domestic and international market, the structural feature of piston type, spring, diaphragm type is: active chamber and control system are separated, and communicate with pipeline between the two.If such reduction valve is used for the heavy oil delivery pipeline system, when heavy oil passes through (even if the process heating), on inner tubal wall, will form mucous membrane from level to level, thereby make it can't guarantee the stable of sensitive control and flow, even blocking phenomenon can occur.
The purpose of this utility model just is to provide a kind of high viscosity coefficient liquid medium delivery line decompression control, reduction valve simple in structure of being applicable to.
The utility model provides a kind of diaphragm type reduction valve, and it is made up of parts such as valve body, valve gaps, it is characterized in that it is divided into active chamber and hydraulic controller two-part, and both separate with elastic diaphragm, wherein:
(1) be mounted with a pressure regulation lever in the active chamber, the gravity arm of lever end is with the import close fit;
(2) hydraulic controller is positioned at the active chamber top, and by elastic diaphragm, pressure adjusting spring, spring backing plate, spring cup and pull bar are formed;
(3) hydraulic controller is connected with the arm of force end of the pressure regulation lever of active chamber by the pull bar that is arranged in its center portion;
When the import flow stream pressure changes, to cause that elastic diaphragm produces distortion, elastic diaphragm deformation affects pull bar to move up and down by hydraulic controller, thereby drives the flow of pressure regulation lever with the form control import of " reverse feedback ", makes that the pressure in reduction valve outlet port and flow keep stable.Consider the viscosity with temperature of liquid medium and change that temperature is low excessively, viscosity is crossed senior general and directly had influence on flowing of liquid, diaphragm type reduction valve provided by the utility model also under active chamber the side be that the valve body bottom settles one to add electrothermal stove in addition.Thereby, out-of-date when the high viscosity liquid MEDIA FLOW, add the temperature of electrothermal stove by adjusting, can obtain the stable decompression liquid stream of pressure.
Its working principle of diaphragm type reduction valve provided by the utility model is as follows:
In valve body, be that the boundary divides work two chambeies up and down with the elastic diaphragm, wherein cavity of resorption is active chamber (being that liquid medium will flow through thus), epicoele is hydraulic controller.Be closed condition under this valve body inoperative situation, when high-pressure medium enters inlet, the left end of lever (weighing arm end) has been pushed downwards, thereafter medium enters the valve active chamber, low piezodielectric is flowed out by outlet, the numerical value that demonstrate on can the pressure gauge according to the outlet port this moment, pressure adjusting spring lid by the rotating hydraulic controller is set up outlet pressure, when the pressure in the active chamber rose, along with elastic diaphragm is upwards heaved, pull bar was pulled upwardly pressure regulation lever right-hand member (arm of force end), the inlet flow rate is diminished, when outlet pressure reached setting, import was by closed fully, after this, along with the pressure in the active chamber descends, pull bar promotes pressure regulation lever right-hand member and moves down under the effect of pressure adjusting spring, will enter the mouth again and open gradually.Thereby guaranteed that outlet pressure is brought under control within the setting scope all the time and flow stable.Add electrothermal stove and be made of electric furnace pan and resistance wire, its effect is by heating to liquid medium, reduce its viscosity coefficient, improving its flowability so that reach the purpose that improves discharge stability.
This diaphragm type reduction valve has adjusting than big, high temperature resistant, high pressure, can carry out sensitivity to the high viscosity liquid medium that is flow through, overvoltage is stably controlled automatically, and simple in structure, and volume is little, easily the advantage of processing.The supporting use of low pressure nozzle in the combustion system that heavy oil is fuel be can be provided with, and crude oil pyrolysis processing system and other high viscosity coefficient liquid medium delivery pipeline system are used for.
Accompanying drawing is the full section schematic representation of the diaphragm type reduction valve that the utility model proposes.
(1) pull bar; (2) pressure adjusting spring lid; (3) valve gap; (4) pressure adjusting spring; (5) elastic diaphragm; (6) pressure regulation lever; (7) valve body; (8) electric furnace pan; (9) resistance wire; (10) power socket; (11) base plate; (12) backing plate; (13) spring; (14) nut.
Embodiment: in the valve body active chamber, pressure regulation lever (6), joins with straight pin and pull bar (1) at right-hand member with straight pin and valve body (7) handing-over in the stage casing; Pull bar (1) use nut (14), spring (13) and backing plate (12), elastic diaphragm (5) flexible connection together, and spring barrier film (5) periphery kills between the usefulness valve body (7) and valve gap (3) of bolted on connection; One perforate that has an internal thread is arranged on the valve gap (3), its built-in pressure adjusting spring (4), the lower end is pressed on the backing plate (12), the upper end with have externally threaded pressure adjusting spring lid and contact; Add electrothermal stove and be made of electric furnace pan (8) and the resistance wire on it (9), both can be held in the palm below valve body (7) with the base plate (11) that screw and valve body (7) are connected; Power socket (10) with screw on base plate (11).In addition, the material of elastic diaphragm (5) can be high temperature resistant, corrosion-resistant fluorine rubber or silicone rubber.The range of regulation of this valve: inlet pressure 15～24dgf/cm
2, outlet pressure 0.5～2dgf/cm
2Allowing maximum temperature is 200 ℃.
Claims (3)
1, a kind of diaphragm type reduction valve that is made of valve gap (3), valve body parts such as (7) is characterized in that it is divided into active chamber and hydraulic controller two-part, and both separate with elastic diaphragm (5):
A) active chamber is mounted with a pressure regulation lever (6), and the weighing arm end of lever is with valve body import close fit;
B) hydraulic controller is positioned at the top of active chamber, and it is by elastic diaphragm, pressure adjusting spring (4), spring backing plate (12), spring cup (20 and pull bar (1) form;
C) hydraulic controller is connected with the arm of force end of the pressure regulation lever of active chamber by the pull bar that is arranged in its center portion.
2, by the described reduction valve of claim 1, it is characterized in that the valve body bottom is equipped with one in addition and adds electrothermal stove by what electric furnace pan (8) and resistance wire (9) were formed, it is held by the base plate (11) that is connected with valve body (7) with screw.
3, by claim 1,2 described reduction valve, it is characterized in that its material of said elastic diaphragm (5) can be fluorine rubber or silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209562 CN2055890U (en) | 1989-09-26 | 1989-09-26 | Diaphragm pressure reduction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209562 CN2055890U (en) | 1989-09-26 | 1989-09-26 | Diaphragm pressure reduction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2055890U true CN2055890U (en) | 1990-04-11 |
Family
ID=4866084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209562 Pending CN2055890U (en) | 1989-09-26 | 1989-09-26 | Diaphragm pressure reduction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2055890U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821970A (en) * | 2014-02-28 | 2014-05-28 | 成都大漠石油机械有限公司 | Oil delivery pressure reducing valve structure |
| CN104677571A (en) * | 2013-11-29 | 2015-06-03 | 北汽福田汽车股份有限公司 | Air tightness detection device |
| CN105251645A (en) * | 2015-11-24 | 2016-01-20 | 温岭市锦鹏日用品有限公司 | Convenient-to-maintain water heater water outlet sprayer component |
| CN110057491A (en) * | 2019-05-22 | 2019-07-26 | 嘉兴勤慎智能技术有限公司 | A kind of pyrostat |
| CN111550598A (en) * | 2020-05-25 | 2020-08-18 | 芜湖辉林奥远自动化科技有限公司 | Valve linearization acquisition device based on multi-point pipeline and control system thereof |
| CN114259340A (en) * | 2022-03-01 | 2022-04-01 | 杭州师范大学附属医院(杭州市第二人民医院) | Portable ear pressure automatic regulating device |
-
1989
- 1989-09-26 CN CN 89209562 patent/CN2055890U/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677571A (en) * | 2013-11-29 | 2015-06-03 | 北汽福田汽车股份有限公司 | Air tightness detection device |
| CN103821970A (en) * | 2014-02-28 | 2014-05-28 | 成都大漠石油机械有限公司 | Oil delivery pressure reducing valve structure |
| CN105251645A (en) * | 2015-11-24 | 2016-01-20 | 温岭市锦鹏日用品有限公司 | Convenient-to-maintain water heater water outlet sprayer component |
| CN110057491A (en) * | 2019-05-22 | 2019-07-26 | 嘉兴勤慎智能技术有限公司 | A kind of pyrostat |
| CN110057491B (en) * | 2019-05-22 | 2021-03-23 | 深圳市美信泰电子有限公司 | High-temperature sensor |
| CN111550598A (en) * | 2020-05-25 | 2020-08-18 | 芜湖辉林奥远自动化科技有限公司 | Valve linearization acquisition device based on multi-point pipeline and control system thereof |
| CN114259340A (en) * | 2022-03-01 | 2022-04-01 | 杭州师范大学附属医院(杭州市第二人民医院) | Portable ear pressure automatic regulating device |
| CN114259340B (en) * | 2022-03-01 | 2022-05-27 | 杭州师范大学附属医院(杭州市第二人民医院) | Portable ear pressure automatic regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |