CN207178731U - A kind of gas ratio valve seals auxiliary structure - Google Patents
A kind of gas ratio valve seals auxiliary structure Download PDFInfo
- Publication number
- CN207178731U CN207178731U CN201721153629.5U CN201721153629U CN207178731U CN 207178731 U CN207178731 U CN 207178731U CN 201721153629 U CN201721153629 U CN 201721153629U CN 207178731 U CN207178731 U CN 207178731U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve seat
- conical surface
- sealing area
- arc transition
- 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 - Fee Related
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- Lift Valve (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The utility model discloses a kind of gas ratio valve to seal auxiliary structure, including valve seat, flap.The primary sealing area of the valve seat is male cone (strobilus masculinus), the primary sealing area of the flap is the inner conical surface coordinated with the male cone (strobilus masculinus), flap center line extended spot is provided with the first arc transition groove in inner conical surface on the flap, the taper formed by valve seat and flap is provided with along combustion gas direct of travel in the upside of the first arc transition groove and crosses runner, the the second arc transition groove for being correspondingly arranged on and being opened on valve seat is crossed on the upside of runner in taper, and the second arc transition groove is provided with secondary sealing area towards gas outlet direction.The utility model devises tapered primary sealing area and the secondary sealing area in plane; the design of fit circular arc lead-over groove; so that medium dexterously flows along sealing surface parallel direction; rather than sealing surface is directly washed away with normal direction or other angles, play the protective effect to the sealing surface particularly secondary sealing area.
Description
Technical field
A kind of gas ratio valve is the utility model is related to, more particularly to a kind of sealing pair of gas ratio valve.
Background technology
In the prior art, gas ratio valve sealing auxiliary structure is two kinds of structure types of flat seal and conical surface seal.Plane
Sealing structure is the pattern that valve seat just uses plane with flap；Conical surface sealing structure is that valve seat is male cone (strobilus masculinus), and flap is inner conical surface
Form.It is significantly larger than other valves because gas ratio valve opens and closes frequency, therefore in the opening-closing process of high frequency time, combustion gas is situated between
Washing away for confrontation sealing surface is more frequent.In frequently scour process, sealing surface will gradual erosion corrosion.Erosion corrosion one
It is directly one of research direction of gas ratio valve, more frequently washes away and the sealing effectiveness of gas ratio valve is deteriorated, can lead
Cause proportioning valve precise decreasing.
Utility model content
In order to overcome the drawbacks described above of prior art, the utility model provides a kind of new gas ratio valve sealing pair
Structure, this proportioning valve sealing pair can significantly improve erosion control on the basis of traditional stop valve seal pair sealing effectiveness is kept
Brush, corrosion resistant performance, it is ensured that the precision during proportioning valve use.
The utility model is realized by the following technical solutions：
A kind of gas ratio valve seals auxiliary structure, including valve seat, flap.The primary sealing area of the valve seat is male cone (strobilus masculinus),
The primary sealing area of the flap is the inner conical surface coordinated with the male cone (strobilus masculinus)；In inner conical surface towards flap center on the flap
Line extended spot is provided with the first arc transition groove；It is provided with the upside of the first arc transition groove along combustion gas direct of travel
Runner is crossed in the taper formed by valve seat and flap, and second for being correspondingly arranged on and being opened on valve seat is crossed on the upside of runner in the taper
Arc transition groove, the second arc transition groove towards gas outlet direction be provided with by valve seat and flap formed in planar structure
Secondary sealing area.
Arc transition groove is provided with the utility model, the design of arc transition groove causes the medium after scattering along sealing
The almost parallel direction flowing in face, and effectively reduce it and wash away.
The male cone (strobilus masculinus) of the valve seat overlaps with the center line of the inner conical surface of the flap.
The male cone (strobilus masculinus) of the valve seat is provided with male cone (strobilus masculinus) soft seal body.
The inner conical surface of the flap is provided with inner conical surface soft seal body.
The inner conical surface of the male cone (strobilus masculinus) of the valve seat and the flap is provided with mutually corresponding hard seal.
The beneficial effects of the utility model are：
1st, the unique design of the valve seat and valve clack sealing surface so that medium is flowing through the bellmouth（Valve seat orifice）When,
Sealing surface is not directly to meet the medium to circulation, but alleviates circulation medium into almost parallel flows at angles with sealing surface
Washing away and corrode to the sealing surface.
2nd, tapered primary sealing area and the secondary sealing area in plane are devised, the design of fit circular arc lead-over groove,
So that medium dexterously flows along sealing surface parallel direction, rather than directly washes away sealing surface with normal direction or other angles,
Play the protective effect to the sealing surface particularly secondary sealing area.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As shown in figure 1, the utility model provides a kind of gas ratio valve sealing auxiliary structure, including valve seat 1, flap 2, institute
The primary sealing area for stating valve seat 1 is male cone (strobilus masculinus) 10, and the primary sealing area of the flap 2 is the inner cone coordinated with the male cone (strobilus masculinus) 10
Face 20；The center line extended spot of flap 2 is provided with the first arc transition groove 21 in inner conical surface 20 on the flap 2；Described
The upside of first arc transition groove 21 is provided with the taper formed by valve seat 1 and flap 2 along combustion gas direct of travel and crosses runner 23,
The upside that runner 23 is crossed in the taper is correspondingly arranged on the second arc transition groove 11 being opened on valve seat 1, the second arc transition
Groove 11 is provided with the secondary sealing area 12 in planar structure formed by valve seat 1 and flap 2 towards gas outlet direction.
In the present embodiment, the male cone (strobilus masculinus) 10 of the valve seat 1 overlaps with the center line of the inner conical surface 20 of the flap 2.
In order to improve the sealing effectiveness of the stop valve seal pair, the male cone (strobilus masculinus) 10 of the valve seat 1 and the flap 2 it is interior
Corresponding male cone (strobilus masculinus) soft seal body 10a, inner conical surface soft seal body 20a can be respectively equipped with the conical surface 20.
The utility model does not increase, the weight of material relative to traditional proportioning valve sealing pair in the quantity of part
Also it is essentially the same, the form of sealing surface is simply changed, technique is simple.On the basis of production cost is not increased so that cut-off
The sealing surface of valve has protection against erosion, corrosion resistant performance.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility model
System, as long as the technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (5)
1. a kind of gas ratio valve seals auxiliary structure, including valve seat（1）, flap（2）, it is characterised in that：The valve seat（1）
One sealing surface is male cone (strobilus masculinus)（10）, the flap（2）Primary sealing area be and the male cone (strobilus masculinus)（10）The inner conical surface of cooperation
（20）；The flap（2）On in inner conical surface（20）Towards flap（2）Center line extended spot is provided with the first arc transition groove
（21）；In the first arc transition groove（21）Upside be provided with along combustion gas direct of travel by valve seat（1）And flap（2）Shape
Into taper cross runner（23）, the taper crosses runner（23）Upside be correspondingly arranged on and be opened in valve seat（1）On second circle
Arc lead-over groove（11）, the second arc transition groove（11）It is provided with towards gas outlet direction by valve seat（1）And flap（2）Formed
In the secondary sealing area of planar structure（12）.
A kind of 2. gas ratio valve sealing auxiliary structure according to claim 1, it is characterised in that the valve seat（1）It is outer
The conical surface（10）With the flap（2）Inner conical surface（20）Center line overlap.
A kind of 3. gas ratio valve sealing auxiliary structure according to claim 1, it is characterised in that the valve seat（1）It is outer
The conical surface（10）Provided with male cone (strobilus masculinus) soft seal body（10a）.
A kind of 4. gas ratio valve sealing auxiliary structure according to claim 1, it is characterised in that the flap（2）It is interior
The conical surface（20）Provided with inner conical surface soft seal body（20a）.
A kind of 5. gas ratio valve sealing auxiliary structure according to claim 1, it is characterised in that the valve seat（1）It is outer
The conical surface（10）With the flap（2）Inner conical surface（20）It is provided with mutually corresponding hard seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153629.5U CN207178731U (en) | 2017-09-11 | 2017-09-11 | A kind of gas ratio valve seals auxiliary structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153629.5U CN207178731U (en) | 2017-09-11 | 2017-09-11 | A kind of gas ratio valve seals auxiliary structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178731U true CN207178731U (en) | 2018-04-03 |
Family
ID=61743467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721153629.5U Expired - Fee Related CN207178731U (en) | 2017-09-11 | 2017-09-11 | A kind of gas ratio valve seals auxiliary structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098192A1 (en) * | 2019-11-19 | 2021-05-27 | 深圳市科曼医疗设备有限公司 | Proportional valve and ventilator |
-
2017
- 2017-09-11 CN CN201721153629.5U patent/CN207178731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098192A1 (en) * | 2019-11-19 | 2021-05-27 | 深圳市科曼医疗设备有限公司 | Proportional valve and ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20200911 |