CN201003649Y - Flowrate control valve - Google Patents
Flowrate control valve Download PDFInfo
- Publication number
- CN201003649Y CN201003649Y CNU2006201676775U CN200620167677U CN201003649Y CN 201003649 Y CN201003649 Y CN 201003649Y CN U2006201676775 U CNU2006201676775 U CN U2006201676775U CN 200620167677 U CN200620167677 U CN 200620167677U CN 201003649 Y CN201003649 Y CN 201003649Y
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- CN
- China
- Prior art keywords
- valve
- relief opening
- pressure relief
- flow control
- current limliting
- Prior art date
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Abstract
The utility model discloses a flux control valve. Valve seat is provided with a pressure cavity, one end of the pressure cavity is opened with a cut and a flow limiting block. An elastic component is arranged between one end of the flow limiting block and the pressure cavity, while the other end of the flow limiting block is tightly connnected with an air inlet by effect of the elastic component. The pressure cavity is provided with a pressure step up opening which is communicated with the air inlet, and also is provided with a pressure relief opening which is communicated with the air outlet. The cross sectional area of the pressure setup opening is less than that of the pressure relief opening. The pressure relief opening is provided with a control device which is able to control the pressure inside the pressure cavity by controlling the size of the pressure relief opening, thereby controlling the direction and size of the axial force of the flow limiting block to achieve the proposal of controlling the flow. The utility model has the advantages of simple structure, easy operation, accurate controlling and being convenient for connection with computer to achieve automatically control. The utility model is mainly used for accurately controlling the quality and flow of air, and is also used for controlling the flow of other liquids.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to the valve that a kind of flow can be controlled.
Background technique
In productive life, relate in the conveying of gas, combustion gas and steam, flow control device is a kind of device of necessity.In the flow control valve commonly used, a kind of pore size that is direct by control valve, realize the control of flow, this control mode is simple in structure, but the control inaccuracy is impacted bigger to valve body, can only be used for the not tight occasion of flow control requirement, another kind is by guide's aperture control flow rate, but mostly is can only control fluid logical and disconnected, and can not control flow rate.To the strict occasion of traffic requirement, have to use complicated flow control device to realize the control of flow at some.
Summary of the invention
The purpose of this utility model provide a kind of simple in structure, easy to use, control accurate flow control valve.
The purpose of this utility model is achieved through the following technical solutions:
Flow control valve of the present utility model, comprise valve seat, valve gap, described valve gap is provided with suction port, described valve seat is provided with the air outlet, described valve seat is provided with pressure chamber, an end opening of described pressure chamber, and be provided with the current limliting piece at opening end, be provided with resilient member between one end of described current limliting piece and the pressure chamber walls, the other end closely contacts with suction port under the effect of resilient member;
Described pressure chamber is provided with the mouth that boosts that communicates with suction port, also is provided with the pressure relief opening that communicates with the air outlet, and described pressure relief opening place is provided with control gear, is used to control the size of pressure relief opening;
The cross sectional area of the described mouth that boosts is less than the cross sectional area of pressure relief opening.
Described pressure chamber is located at the middle part of valve seat; Described air outlet has a plurality of, be located at pressure chamber around; Described pressure relief opening is located at a side of valve seat.
The described mouth that boosts is located at the middle part of current limliting piece.
Described current limliting piece comprises that current limliting cover, current limliting block set, piston connect successively, and described piston is located at the opening end of pressure chamber.
Described control gear is a solenoid valve.
Described solenoid valve comprises valve body, spool, and described spool closely contacts with pressure relief opening; The electrical signal that described valve body transmits according to the outside is controlled the displacement of spool.
Be provided with little valve pocket near the solenoid valve place on the described valve seat, described pressure relief opening is located at the middle part of little valve pocket; The spool of described solenoid valve closely contacts with pressure relief opening on the little valve pocket.
The middle part of described valve gap is provided with big valve pocket, and described suction port is located at the middle part of big valve pocket.
Be provided with sealing gasket between described big valve pocket and the current limliting piece.
Described resilient member is a spring.
The technological scheme that provides by above-mentioned the utility model as can be seen, flow control valve described in the utility model.Because valve seat is provided with pressure chamber, the opening end of pressure chamber is provided with the current limliting piece, is provided with resilient member between an end of current limliting piece and the pressure chamber walls, and the other end closely contacts with suction port under the effect of resilient member; Pressure chamber is provided with the mouth that boosts that communicates with suction port, also is provided with the pressure relief opening that communicates with the air outlet, and the cross sectional area of the mouth that boosts is less than the cross sectional area of pressure relief opening.And be provided with control gear at the pressure relief opening place, can come the pressure in the control pressure chamber by the size of control pressure relief opening, thereby the direction and the size of the suffered axial force of control current limliting piece play the effect of control flow rate size.Simple in structure, easy to use, control accurately is convenient to be connected with computer and is realized controlling automatically.Be mainly used in the mass flow rate of gas is carried out precision control, also be used for other the flow of fluid is controlled.
Description of drawings
Fig. 1 is the structural representation of the utility model flow control valve;
Fig. 2 is the structural representation of valve seat;
Fig. 3 is that the A-A of Fig. 2 is to cut-away view.
Embodiment
Flow control valve of the present utility model comprises valve seat 1, valve gap 2, and described valve gap 2 is provided with suction port 4, and described valve seat 1 is provided with air outlet 5.
Its preferable embodiment as shown in Figure 1, valve gap 2 vertically is installed together with valve seat 1, gas or other fluid can flow through valve by suction port 4, air outlet 5 successively.
Described valve seat 1 is provided with pressure chamber 3, an end opening of described pressure chamber 3, and be provided with the current limliting piece at opening end, and being provided with resilient member between an end of described current limliting piece and pressure chamber 3 walls, the other end closely contacts with suction port 4 under the effect of resilient member.Pressure chamber 3 generally can be designed to cylindrical, an end opening.The latter half part of current limliting piece is cylindrical, adapt with the interior column part of pressure chamber 3, be provided with seal ring each other, can in pressure chamber 3, slide, being provided with resilient member between the rear end of current limliting piece and pressure chamber 3 walls, generally is spring 10 or other resilient member.The shape of the front end of current limliting piece and suction port 4 adapts, and also sealing gasket 14 can be set.Under the free state, spring 10 can promote the current limliting piece and suction port 4 be sealed valve closing; When the current limliting piece receive along the gas pressure of gas flow direction the time greater than spring force, suction port 4 is opened, gas stream is crossed valve.
Described pressure chamber 3 is provided with the mouth 6 that boosts that communicates with suction port 4, also is provided with the pressure relief opening 12 that communicates with air outlet 5, and described pressure relief opening 12 places are provided with control gear, are used to control the size of pressure relief opening 12; The cross sectional area of the described mouth 6 that boosts is less than the cross sectional area of pressure relief opening 12.By the size of control pressure relief opening 12, come the pressure in the control pressure chamber 3, thereby control the direction and the size of the suffered axial force of current limliting piece, play the effect of control flow rate size.
Its concrete control principle is such, when pressure relief opening 12 complete closed, and owing to pressure chamber 3 communicates with suction port 4, the gas pressure balancing at current limliting piece two ends, under the effect of spring 10 power, the current limliting piece is sealed suction port 4, and valve is in closing state; When pressure relief opening 12 is opened, pressure leakage in the pressure chamber 3, the cross sectional area of mouth 6 is less than the cross sectional area of pressure relief opening 12 owing to boost, enter the amount of the amount of the gas in the pressure chamber 3 less than the gas in the head pressure chamber 3, gas pressure in the pressure chamber 3 is less than the pressure of suction port 4, the suffered axial force along gas flow of current limliting piece overcomes spring 10 power, and suction port 4 is opened, and gas flows through valve by suction port 4, air outlet 5; The size of control pressure relief opening 12 apertures, the pressure in can control pressure chamber 3, and then the size of control suction port 4 apertures play the effect of control flow rate size.
Described control gear is a solenoid valve.Described solenoid valve comprises valve body 16, spool 15, and described spool 15 closely contacts with pressure relief opening 12; The electrical signal that described valve body 16 transmits according to the outside is controlled the displacement of spool 15.Under the normality, spool 15 is sealed pressure relief opening 12, valve closing; When to electrical signal such as valve body 16 feeding electric currents, spool 15 is raised, and pressure relief opening 12 is opened.By the size of electric current or the power of electrical signal in the control valve body 16, the displacement amount that control spool 15 is raised, and then the size of control pressure relief opening 12 apertures.
As Fig. 2, shown in Figure 3, above-mentioned pressure chamber 3 preferably is located at the middle part of valve seat 1; Described air outlet 5 has a plurality of, be located at pressure chamber 3 around; Described pressure relief opening 12 is located at a side of valve seat 1.
The described mouth 6 that boosts preferably is located at the middle part of current limliting piece.The current limliting piece comprises that current limliting cover 7, current limliting block set 8, piston 9 connect successively, and described piston 9 is located at the opening end of pressure chamber 3.
Described suction port 4 places are provided with big valve pocket 11, are provided with sealing gasket 14 between big valve pocket 11 and the current limliting piece.Described pressure relief opening 12 is provided with little valve pocket 13 near an end of solenoid valve.
The main purpose of the big valve pocket 11 of above-mentioned employing, current limliting cover 7 and little valve pocket 13 is that guarantee to seal each other, unlatching etc. moved effectively, and is convenient to change.Also can adopt the material of high-quality in addition separately, prolong the working life of valve.
The utility model is simple in structure, control flow rate is big, measuring accuracy is high, speed of response is fast, reliable and stable, range of working pressure is wide, and have easy processing, easily install, easy for operation, can be connected with computer and realize controlling automatically.Be mainly used in the mass flow rate of gas is carried out precision control, also be used for other the flow of fluid is controlled.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (10)
1, a kind of flow control valve, comprise valve seat, valve gap, described valve gap is provided with suction port, described valve seat is provided with the air outlet, it is characterized in that, described valve seat is provided with pressure chamber, one end opening of described pressure chamber, and be provided with the current limliting piece at opening end, and being provided with resilient member between an end of described current limliting piece and the pressure chamber walls, the other end closely contacts with suction port under the effect of resilient member;
Described pressure chamber is provided with the mouth that boosts that communicates with suction port, also is provided with the pressure relief opening that communicates with the air outlet, and described pressure relief opening place is provided with control gear, is used to control the size of pressure relief opening;
The cross sectional area of the described mouth that boosts is less than the cross sectional area of pressure relief opening.
2, flow control valve according to claim 1 is characterized in that, described pressure chamber is located at the middle part of valve seat; Described air outlet has a plurality of, be located at pressure chamber around; Described pressure relief opening is located at a side of valve seat.
3, flow control valve according to claim 2 is characterized in that, the described mouth that boosts is located at the middle part of current limliting piece.
4, flow control valve according to claim 3 is characterized in that, described current limliting piece comprises that current limliting cover, current limliting block set, piston connect successively, and described piston is located at the opening end of pressure chamber.
5, flow control valve according to claim 1 is characterized in that, described control gear is a solenoid valve.
6, flow control valve according to claim 5 is characterized in that, described solenoid valve comprises valve body, spool, and described spool closely contacts with pressure relief opening; The electrical signal that described valve body transmits according to the outside is controlled the displacement of spool.
7, flow control valve according to claim 6 is characterized in that, is provided with little valve pocket near the solenoid valve place on the described valve seat, and described pressure relief opening is located at the middle part of little valve pocket; The spool of described solenoid valve closely contacts with pressure relief opening on the little valve pocket.
8, flow control valve according to claim 1 is characterized in that, the middle part of described valve gap is provided with big valve pocket, and described suction port is located at the middle part of big valve pocket.
9, flow control valve according to claim 8 is characterized in that, is provided with sealing gasket between described big valve pocket and the current limliting piece.
10, flow control valve according to claim 1 is characterized in that, described resilient member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201676775U CN201003649Y (en) | 2006-12-27 | 2006-12-27 | Flowrate control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201676775U CN201003649Y (en) | 2006-12-27 | 2006-12-27 | Flowrate control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201003649Y true CN201003649Y (en) | 2008-01-09 |
Family
ID=39039186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201676775U Expired - Fee Related CN201003649Y (en) | 2006-12-27 | 2006-12-27 | Flowrate control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201003649Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235538A (en) * | 2010-04-29 | 2011-11-09 | 浙江三花股份有限公司 | Magnetic valve |
| CN102794434A (en) * | 2012-08-14 | 2012-11-28 | 北京润菲利德科技有限公司 | Ultralow pressure air control servo system |
| CN103256421A (en) * | 2013-03-07 | 2013-08-21 | 荆门市广恒机电设备有限公司 | Electromagnetic zone control valve for high-pressure water mist extinguishing system |
| CN103547197A (en) * | 2011-04-20 | 2014-01-29 | 路易吉拉瓦扎股份公司 | Adaptive flow control device for a flow of a liquid, in particular for use in a coffee-making machine |
| CN108730601A (en) * | 2018-07-26 | 2018-11-02 | 华帝股份有限公司 | Low-power consumption solenoid valve |
-
2006
- 2006-12-27 CN CNU2006201676775U patent/CN201003649Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235538A (en) * | 2010-04-29 | 2011-11-09 | 浙江三花股份有限公司 | Magnetic valve |
| CN102235538B (en) * | 2010-04-29 | 2015-04-08 | 浙江三花股份有限公司 | Magnetic valve |
| CN103547197A (en) * | 2011-04-20 | 2014-01-29 | 路易吉拉瓦扎股份公司 | Adaptive flow control device for a flow of a liquid, in particular for use in a coffee-making machine |
| CN102794434A (en) * | 2012-08-14 | 2012-11-28 | 北京润菲利德科技有限公司 | Ultralow pressure air control servo system |
| CN103256421A (en) * | 2013-03-07 | 2013-08-21 | 荆门市广恒机电设备有限公司 | Electromagnetic zone control valve for high-pressure water mist extinguishing system |
| CN103256421B (en) * | 2013-03-07 | 2015-03-25 | 荆门市广恒机电设备有限公司 | Electromagnetic zone control valve for high-pressure water mist extinguishing system |
| CN108730601A (en) * | 2018-07-26 | 2018-11-02 | 华帝股份有限公司 | Low-power consumption solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Sevenstar Qualiflow Electronic Equipment Manufacturing Co., Ltd. Assignor: Qixinghuachuang Electronic Co., Ltd., Beijing Contract fulfillment period: 2009.7.1 to 2014.6.30 Contract record no.: 2009110000185 Denomination of utility model: Flow control valve employing shape memory alloy Granted publication date: 20080109 License type: Exclusive license Record date: 20090826 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.1 TO 2014.6.30; CHANGE OF CONTRACT Name of requester: BEIJING SEVEN STAR FLOWR ELECTRONIC EQUIPMENT MANU Effective date: 20090826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |