CN101349348A - Cryogenic fluid electromagnetic valve - Google Patents
Cryogenic fluid electromagnetic valve Download PDFInfo
- Publication number
- CN101349348A CN101349348A CNA2007100700827A CN200710070082A CN101349348A CN 101349348 A CN101349348 A CN 101349348A CN A2007100700827 A CNA2007100700827 A CN A2007100700827A CN 200710070082 A CN200710070082 A CN 200710070082A CN 101349348 A CN101349348 A CN 101349348A
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- CN
- China
- Prior art keywords
- spool
- liquid outlet
- electromagnetic valve
- valve seat
- cryogenic fluid
- 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.)
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- Magnetically Actuated Valves (AREA)
Abstract
Disclosed is a low-temperature fluid electromagnetic valve, which relates to a fluid valve structure. The prior art has shortages of poor sealing and unreliable operation. A fluid inlet is arranged on the inner wall of a cavity of a valve seat, the fluid inlet is connected with a fluid inlet pipe, a fluid outlet is also arranged on the inner wall of the cavity of the valve seat, the fluid outlet is connected with a fluid outlet pipe, a valve core which can perform lifting operation to control the open and close states of the fluid outlet is arranged in the electromagnetic valve, and an elastic piece is arranged between the valve core and a coil seat. The sealing is efficiently improved by improving the positions of the fluid inlet and the fluid outlet of the electromagnetic valve, and reliable operation, convenient process and long service life of the electromagnetic valve are guaranteed.
Description
[technical field]
The present invention relates to a kind of fluid valve structure, particularly a kind of cryogenic fluid electromagnetic valve.
[background technique]
All relate to the conveying of cryogen (as liquid nitrogen, liquid oxygen etc.) in fields such as bioengineering, medical applications, engine cooling, adopt solenoid valve to control flowing of fluid usually.
Existing cryogenic fluid electromagnetic valve generally comprises valve seat and coil base, have cavity in the valve seat, its liquid entering hole is opened in the cavity bottom central position, be provided with the spool of lifting motion control liquid entering hole open and-shut mode in the valve, liquid outlet then is located at cavity sidewalls or other position, bottom, and liquid entering hole is connected liquid entering hole and liquid outlet respectively with liquid outlet.During off state, the spool lower end is pressed liquid entering hole and is come fluid transfer; When opening, rise by magnetic force control spool, liquid entering hole is left in its lower end, and liquid entering hole is conducted by cavity and liquid outlet, and fluid flows forward through solenoid valve.
The solenoid valve of said structure, when off state, the general tension force of spring that relies on presses down spool, and the fluid of being carried has certain pressure, can apply an active force that makes progress to spool at the liquid entering hole place, in case this active force surpasses the tension force of spring, fluid can be with spool jack-up, part fluid can flow out from liquid outlet, causes leakage, and it is unreliable to work.
[summary of the invention]
In order to overcome the above-mentioned defective that exists in the prior art, the invention provides a kind of cryogenic fluid electromagnetic valve, to reach the purpose of anti-leak, reliable operation.
For this reason, the present invention is by the following technical solutions: cryogenic fluid electromagnetic valve, comprise the valve seat that is provided with cavity and be covered in coil base on the valve seat, it is characterized in that offering liquid entering hole on the described valve seat cavity inner wall, this liquid entering hole links to each other with liquid inlet pipe, also offers liquid outlet on the inwall of described valve seat cavity bottom, and this liquid outlet links to each other with drain pipe, be provided with the spool that to do lifting operation control liquid outlet open and-shut mode in the described solenoid valve, be provided with elastic component between this spool and the coil base.During off state, fluid enters in the valve from liquid entering hole, is full of spool cavity on every side, and spool is in the sedimentation state, liquid outlet is closed, and fluid can't flow out, at this moment, fluid only can produce horizontal or downward active force to spool, can not influence the sealing at liquid outlet place, reliable operation.When opening, the control spool rises and can open liquid outlet, and fluid flows out.
As the further of technique scheme improved and replenish, the present invention adopts following technical measures: described liquid entering hole is opened in the valve seat cavity sidewalls, and liquid outlet then is opened in cavity bottom, but spool is located at the liquid outlet top and in the vertical direction moves.Spool moves down and can seal liquid outlet, and spool rises and just opens liquid outlet.
Described spool lower end is provided with the reverse frustoconic sealed department, and described liquid outlet is rounded, and the diameter of liquid outlet is greater than reverse frustoconic sealed department lower end diameter and less than the sealed department upper end diameter.The reverse frustoconic sealed department matches with circular liquid outlet can play good sealing effect, and the size that only needs to guarantee them gets final product in above-mentioned scope, and easy to process, the solenoid valve access times of this structure are many more, and sealing surface cooperates identical more, and sealability is good more.
Described elastic component is a spring, offers the lifting chamber on the described coil base, and described spool is cylindrical, which is provided with bulge loop, and spool upper end is stretched in the lifting chamber, described spring be placed on the spool and be limited in bulge loop and coil base between.Bulge loop is in order to play spacing, supporting effect to spring, spring provides downforce to spool.
Be provided with seal ring between described valve seat and the coil base, improve sealability.
Described spool adopts Cr
13Al
4Nb magnetic stainless steel is made Cr
13Al
4Anti-low temperature of Nb magnetic stainless steel and anti-corrosion capacity are strong, can guarantee the long-term proper functioning of spool.
The invention has the beneficial effects as follows: improve sealing effectively by the liquid entering hole of improvement solenoid valve and the position of liquid outlet, guaranteed the solenoid valve reliable operation, easy to process, long service life.
[description of drawings]
Fig. 1 is a structural representation of the present invention.
[embodiment]
Cryogenic fluid electromagnetic valve as shown in Figure 1 comprises valve seat 5 and the valve gap 6 that is placed on the valve seat, is provided with coil base 10 in the valve gap 6, is lined with seal ring 9 between coil base 10 and the valve seat 5, and seal ring 9 can be made with materials such as plastics, rubber.Coil base 10 is around with coil 11, is provided with the lifting chamber in the coil base 10, and spool 7 is housed in the lifting chamber.
Spool 7 can adopt Cr
13Al
4Nb magnetic stainless steel is made, and which is provided with bulge loop 71, is with spring 8 between bulge loop 71 and the coil base 10.Spool 7 lower ends are reverse frustoconic sealed department 72, and the corresponding section has circular liquid outlet 2 on the valve seat 5, and the diameter of liquid outlet 2 is greater than reverse frustoconic sealed department 72 lower end diameter and less than sealed department 72 upper end diameter.Liquid outlet 2 links to each other with drain pipe 1.
Also have liquid entering hole 4 on the valve seat 5, liquid entering hole 4 links to each other with liquid inlet pipe 3.During off state, fluid enters in the valve from liquid entering hole, is full of spool cavity on every side, and spool descends, and liquid outlet is closed; If will open, then rise by coil control spool, fluid flows out from liquid outlet.
Claims (6)
1, cryogenic fluid electromagnetic valve, comprise the valve seat that is provided with cavity and be located at coil base on the valve seat, it is characterized in that: offer liquid entering hole on the described valve seat cavity inner wall, this liquid entering hole links to each other with liquid inlet pipe, also offer liquid outlet on the inwall of described valve seat cavity bottom, this liquid outlet links to each other with drain pipe, is provided with the spool that can do lifting operation control liquid outlet open and-shut mode in the described solenoid valve, is provided with elastic component between this spool and the coil base.
2, cryogenic fluid electromagnetic valve according to claim 1 is characterized in that: described liquid entering hole is opened in the valve seat cavity sidewalls, and liquid outlet then is opened in cavity bottom, but spool is located at the liquid outlet top and in the vertical direction moves.
3, cryogenic fluid electromagnetic valve according to claim 1 and 2, it is characterized in that: described spool lower end is provided with the reverse frustoconic sealed department, described liquid outlet is rounded, and the diameter of liquid outlet is greater than reverse frustoconic sealed department lower end diameter and less than the sealed department upper end diameter.
4, cryogenic fluid electromagnetic valve according to claim 3, it is characterized in that: described elastic component is a spring, offer the lifting chamber in the described coil base, described spool is cylindrical, which is provided with bulge loop, spool upper end is stretched in the lifting chamber, described spring be placed on the spool and be limited in bulge loop and coil base between.
5, cryogenic fluid electromagnetic valve according to claim 3 is characterized in that: be provided with seal ring between described valve seat and the coil base.
6, cryogenic fluid electromagnetic valve according to claim 3 is characterized in that: described spool adopts Cr
13Al
4Nb magnetic stainless steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100700827A CN101349348A (en) | 2007-07-18 | 2007-07-18 | Cryogenic fluid electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100700827A CN101349348A (en) | 2007-07-18 | 2007-07-18 | Cryogenic fluid electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101349348A true CN101349348A (en) | 2009-01-21 |
Family
ID=40268246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100700827A Pending CN101349348A (en) | 2007-07-18 | 2007-07-18 | Cryogenic fluid electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101349348A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052503B (en) * | 2009-11-06 | 2013-06-12 | 浙江三花汽车零部件有限公司 | Electromagnetic type safety valve |
| CN104696575A (en) * | 2015-03-16 | 2015-06-10 | 张家港富瑞特种装备股份有限公司 | Electromagnetic valve for low temperature pipeline |
| CN107986214A (en) * | 2017-12-29 | 2018-05-04 | 贵州山王果健康实业有限公司 | A kind of Rosa roxburghi Juice is bottled to use bottle placer |
| CN114658916A (en) * | 2022-03-31 | 2022-06-24 | 沈阳航天新光集团有限公司 | High-reliability electromagnetic valve |
-
2007
- 2007-07-18 CN CNA2007100700827A patent/CN101349348A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052503B (en) * | 2009-11-06 | 2013-06-12 | 浙江三花汽车零部件有限公司 | Electromagnetic type safety valve |
| CN104696575A (en) * | 2015-03-16 | 2015-06-10 | 张家港富瑞特种装备股份有限公司 | Electromagnetic valve for low temperature pipeline |
| CN104696575B (en) * | 2015-03-16 | 2017-06-06 | 张家港富瑞特种装备股份有限公司 | Cryogenic pipe magnetic valve |
| CN107986214A (en) * | 2017-12-29 | 2018-05-04 | 贵州山王果健康实业有限公司 | A kind of Rosa roxburghi Juice is bottled to use bottle placer |
| CN114658916A (en) * | 2022-03-31 | 2022-06-24 | 沈阳航天新光集团有限公司 | High-reliability electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090121 |