CN105508649A - Fixed ball valve elastic-compensation soft seal valve seat structure - Google Patents
Fixed ball valve elastic-compensation soft seal valve seat structure Download PDFInfo
- Publication number
- CN105508649A CN105508649A CN201610072746.2A CN201610072746A CN105508649A CN 105508649 A CN105508649 A CN 105508649A CN 201610072746 A CN201610072746 A CN 201610072746A CN 105508649 A CN105508649 A CN 105508649A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- annular groove
- valve body
- groove
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
Abstract
The invention relates to a fixed ball valve elastic-compensation soft seal valve seat structure. The left and right ends of the valve casing are respectively fixed with a valve body; a valve ball is arranged in the valve casing between the left and right valve bodies; a valve seat is installed in the valve body; an annular groove is arranged in the valve body on one side of the valve ball; the outer circle of the notch of the annular groove is provided with a lead-in conical surface; the valve seat is installed in the annular groove; a compression spring is arranged between the valve seat and valve body; the valve seat, which faces towards the bottom of the annular groove, is respectively provided with a first semicircular labial margin slot and a second semicircular labial margin slot from outside to inside; a first spiral wound spring is arranged in the first semicircular labial margin slot; and a second spiral wound spring is arranged in the second semicircular labial margin slot. The fixed ball valve elastic-compensation soft seal valve seat structure has the advantages of stable seal, long service life, lower cost and wide applicability.
Description
Technical field
The present invention relates to a kind of valve base sealing structure, the present invention especially relates to a kind of fixing ball valve elastic compensating type soft sealing valve stand structure.
Background technique
The sealing pair of fixing ball valve soft sealing valve stand structure, side is using metallic material as fixing ball, opposite side be possess some strength, hardness and heat resistance nonmetallic material as valve seat.Valve seat is generally embedded in valve seat skeleton or valve body, relies on the resiliently deformable of self, by realizing sealing effect with fitting tightly of valve ball.
Because the elasticity of nonmetallic material is large under normal temperature, the specific pressure obtained needed for sealing is little, and therefore favorable sealing property, can realize zero leakage.But when after valve long-term action, due to sealing surface wear and fatigue of materials, the resiliently deformable caused by nonmetallic material self cannot continue to ensure sealing again, causes valve leak.In addition, under low-temperature condition, the expansion coefficient of nonmetallic material is much bigger compared with metallic material, and the contour projector of the counterparts such as contour projector when making its low temperature and metal seal, valve seat skeleton or valve body differs comparatively large, causes seal pressure seriously to reduce thus produces the phenomenon that cannot seal.Most of nonmetallic material can be progressively hardening and become fragile along with the reduction of temperature, and elastic deformation amount reduces, and is difficult to reach desirable sealing effect.And, when medium has micro-crystallization attribute or contains a small amount of particle, the damage of soft seal sealing surface of seat can be aggravated, shorten the working life of valve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of structure is simple, reliable performance, can ensure soft sealing valve stand structure sealing effect and the fixing ball valve elastic compensating type soft sealing valve stand structure of valve Long-Time Service zero leakage can be realized.
According to technological scheme provided by the invention, described fixing ball valve elastic compensating type soft sealing valve stand structure, is all fixed with valve body at the left and right two ends of valve casing, is provided with valve ball, in valve body, is provided with valve seat in the valve casing between left and right two valve bodies; Annular groove is offered at the valve body being positioned at valve ball side, the notch cylindrical position of annular groove is provided with importing conical surface, described valve seat is installed in annular groove, Compress Spring is provided with between valve seat and valve body, on the valve seat of the bottom land towards annular groove, ecto-entad is respectively arranged with the first semicircle antelabium groove and the second semicircle antelabium groove, in the first semicircle antelabium groove, be provided with the first screw winding spring, in the second semicircle antelabium groove, be provided with the second screw winding spring.
Equalizing orifice is offered, the flow passage of equalizing orifice and corresponding valve body bottom the annular groove of valve body.
The angular range of described importing conical surface is 15 ~ 30 °.
The bottom land of annular groove offers spring eye, and spring eye is blind hole, is provided with described Compress Spring in spring eye.
The present invention has the following advantages:
1, sealing is stable, long service life.When after valve long-term action, nonmetal valve seat can cause sealing face damage because of wearing and tearing and fatigue, and be in several compact springs of its pre-compressed state, play elastic compensating effect, its elastic force pushes valve seat to valve ball; Meanwhile, medium flows to the back side of valve seat by the equalizing orifice on valve body, utilizes the pressure difference before and after valve seat suffered by side to push valve seat to valve ball, realizes the lasting laminating of valve seat and valve ball sealing surface, ensures the long-term efficient stable action of valve.
2, cost reduces, applied widely.Sealing between valve seat and valve body not exclusively relies on the resiliently deformable of valve seat self, and the elastic force that the screw winding spring being in compressive state provides can push the semicircle antelabium of outside valve seat and inner side to valve body, realizes forced seal.Therefore, at gas, the liquid of low temperature, micro-crystallization or containing under the mixture condition of a small amount of particle, can alternative metals seal valve seat structure, and opposing metallic sealing configuration, this structure more easily realizes the zero leakage action of valve, greatly reduces cost of production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of the part A in Fig. 1.
Fig. 3 is the structural representation of valve seat in the present invention.
Fig. 4 is the structural representation of valve body in the present invention.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
This fixing ball valve elastic compensating type soft sealing valve stand structure, is all fixed with valve body 5 at the left and right two ends of valve casing 7, is provided with valve ball 6, is provided with valve seat 1 in valve body 5 in the valve casing 7 between left and right two valve bodies 5; Annular groove 5c is offered at the valve body 5 being positioned at valve ball 6 side, the notch cylindrical position of annular groove 5c is provided with and imports conical surface 5d, described valve seat 1 is installed in annular groove 5c, Compress Spring 3 is provided with between valve seat 1 and valve body 5, on the valve seat 1 of the bottom land towards annular groove 5c, ecto-entad is respectively arranged with the first semicircle antelabium groove 1a and the second semicircle antelabium groove 1b, in the first semicircle antelabium groove 1a, be provided with the first screw winding spring 2, in the second semicircle antelabium groove 1b, be provided with the second screw winding spring 4.
The inner circle of the annular groove 5c of valve body 5 offers equalizing orifice 5b, the flow passage of equalizing orifice 5b and corresponding valve body 5.
The angular range of described importing conical surface 5d is 15 ~ 30 °.
The bottom land of annular groove 5c offers spring eye 5a, and spring eye 5a is blind hole, is provided with described Compress Spring 3 in spring eye 5a.
In the present invention, valve seat 1 is made up of nonmetallic material, is arranged in the annular groove 5c of valve body 5 inner chamber.Described valve seat 1 ecto-entad is respectively arranged with the first semicircle antelabium groove 1a and the second semicircle antelabium groove 1b, and the first screw winding spring 2 is inlaid in the first semicircle antelabium groove 1a, and the second screw winding spring 4 is inlaid in the second semicircle antelabium groove 1b; The groove bottom of the annular groove 5c of described valve body 5 inner chamber is provided with several spring eyes 5a, and described compact spring 3 is arranged between the spring eye 5a of valve body 5 and valve seat 1.
As shown in Figure 3, decrement is left respectively outside the first semicircle antelabium groove 1a of described valve seat 1 and inside the second semicircle antelabium groove 1b.
As shown in Figure 4, the notch cylindrical position of the annular groove 5c of described valve body 5 is provided with and imports conical surface 5d, and the angular range importing conical surface 5d is 15 ~ 30 °.The inner circle of the annular groove 5c of described valve body 5 inner chamber is provided with the flow passage of equalizing orifice 5b and corresponding valve body 5.
As shown in Figure 2, the precompression scope of described compact spring 3 is 2 ~ 5mm.
Working principle of the present invention is as follows:
When after valve long-term action, the valve seat 1 be made up of nonmetallic material can cause sealing face damage because of wearing and tearing and fatigue, and several compact springs 3 being in its pre-compressed state play elastic compensating effect, and its elastic force pushes valve seat 1 to valve ball 6; Meanwhile, medium is flowed between valve seat 1 and valve body 5 by the equalizing orifice 5b on valve body 5, utilizes the pressure difference before and after valve seat 1 suffered by side to push valve seat 1 to valve ball 6, realizes the lasting laminating of valve seat 1 and valve ball 6 sealing surface.Sealing between valve seat 1 and valve body 5 not exclusively relies on the resiliently deformable of valve seat 1 self, the tension force that being in the first screw winding spring 2 of compressive state and the second screw winding spring 4 provides can push the semicircle antelabium of outside valve seat 1 and inner side to valve body 5, realizes forced seal.Make valve can ensure zero leakage action for a long time, extend the working life of valve.
Claims (4)
1. a fixing ball valve elastic compensating type soft sealing valve stand structure, valve body (5) is all fixed with at the left and right two ends of valve casing (7), be provided with valve ball (6) in valve casing (7) between left and right two valve bodies (5), valve seat (1) is installed in valve body (5), it is characterized in that: offer annular groove (5c) at the valve body (5) being positioned at valve ball (6) side, the notch cylindrical position of annular groove (5c) is provided with and imports conical surface (5d), described valve seat (1) is installed in annular groove (5c), Compress Spring (3) is provided with between valve seat (1) and valve body (5), the first semicircle antelabium groove (1a) and the second semicircle antelabium groove (1b) is respectively arranged with at the upper ecto-entad of the valve seat (1) of the bottom land towards annular groove (5c), the first screw winding spring (2) is provided with in the first semicircle antelabium groove (1a), the second screw winding spring (4) is provided with in the second semicircle antelabium groove (1b).
2. fixing ball valve elastic compensating type soft sealing valve stand structure as claimed in claim 1, is characterized in that: in the inner circle of the annular groove (5c) of valve body (5), offer equalizing orifice (5b), the flow passage of equalizing orifice (5b) and corresponding valve body (5).
3. fixing ball valve elastic compensating type soft sealing valve stand structure as claimed in claim 1, is characterized in that: the angular range of described importing conical surface (5d) is 15 ~ 30 °.
4. fixing ball valve elastic compensating type soft sealing valve stand structure as claimed in claim 1, it is characterized in that: on the bottom land of annular groove (5c), offer spring eye (5a), spring eye (5a) is blind hole, is provided with described Compress Spring (3) in spring eye (5a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072746.2A CN105508649A (en) | 2016-02-01 | 2016-02-01 | Fixed ball valve elastic-compensation soft seal valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072746.2A CN105508649A (en) | 2016-02-01 | 2016-02-01 | Fixed ball valve elastic-compensation soft seal valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105508649A true CN105508649A (en) | 2016-04-20 |
Family
ID=55716846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610072746.2A Pending CN105508649A (en) | 2016-02-01 | 2016-02-01 | Fixed ball valve elastic-compensation soft seal valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105508649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917230A (en) * | 2017-12-14 | 2018-04-17 | 德施普科技发展温州有限公司 | A kind of forced seal ball valve |
| CN108286616A (en) * | 2018-02-12 | 2018-07-17 | 无锡智能自控工程股份有限公司 | Tiny flow quantity V-type regulation ball valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327852Y (en) * | 1998-04-06 | 1999-07-07 | 四川石油管理局勘察设计研究院 | Fully closed underground ball valve |
| DE10022909A1 (en) * | 2000-05-11 | 2001-11-22 | Asg Luftfahrttechnik Und Senso | Ball valve is provided with sealing elements which have a U-shaped cross section accommodating a spring element between its side sections |
| CN103527808A (en) * | 2013-10-30 | 2014-01-22 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN103759031A (en) * | 2013-12-26 | 2014-04-30 | 方正阀门集团有限公司 | Fixed ball valve |
| CN104653813A (en) * | 2013-11-22 | 2015-05-27 | 日本特瑞堡密封系统株式会社 | Sealing construction |
| CN205504069U (en) * | 2016-02-01 | 2016-08-24 | 无锡智能自控工程股份有限公司 | Fixed ball valve elastic compensation type soft seal valve base structure |
-
2016
- 2016-02-01 CN CN201610072746.2A patent/CN105508649A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327852Y (en) * | 1998-04-06 | 1999-07-07 | 四川石油管理局勘察设计研究院 | Fully closed underground ball valve |
| DE10022909A1 (en) * | 2000-05-11 | 2001-11-22 | Asg Luftfahrttechnik Und Senso | Ball valve is provided with sealing elements which have a U-shaped cross section accommodating a spring element between its side sections |
| CN103527808A (en) * | 2013-10-30 | 2014-01-22 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN104653813A (en) * | 2013-11-22 | 2015-05-27 | 日本特瑞堡密封系统株式会社 | Sealing construction |
| CN103759031A (en) * | 2013-12-26 | 2014-04-30 | 方正阀门集团有限公司 | Fixed ball valve |
| CN205504069U (en) * | 2016-02-01 | 2016-08-24 | 无锡智能自控工程股份有限公司 | Fixed ball valve elastic compensation type soft seal valve base structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917230A (en) * | 2017-12-14 | 2018-04-17 | 德施普科技发展温州有限公司 | A kind of forced seal ball valve |
| CN107917230B (en) * | 2017-12-14 | 2023-09-08 | 希佛隆阀门集团有限公司 | Forced sealing ball valve |
| CN108286616A (en) * | 2018-02-12 | 2018-07-17 | 无锡智能自控工程股份有限公司 | Tiny flow quantity V-type regulation ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107228215B (en) | A kind of soft-sealing safety valve | |
| CN107532729B (en) | The seal construction and valve filler of fixed ball valve and valve | |
| CN105508649A (en) | Fixed ball valve elastic-compensation soft seal valve seat structure | |
| CN205504069U (en) | Fixed ball valve elastic compensation type soft seal valve base structure | |
| CN203585470U (en) | Overflow valve | |
| CN202790658U (en) | Valve seat of fixed ball valve | |
| CN205064956U (en) | Multi -level sealed relief valve | |
| CN205908796U (en) | High temperature ball valve seat seal structure that floats | |
| CN205036882U (en) | Two way seal piece and be equipped with ball valve of this two way seal piece | |
| CN203500553U (en) | Valve seat of ball valve | |
| CN103486289A (en) | Ball valve seat | |
| CN113074275B (en) | Electromagnetic valve | |
| CN203614791U (en) | Ball valve | |
| CN208579014U (en) | A kind of Novel maintenance valve | |
| CN201382193Y (en) | Valve seat for ball valve and ball valve using same | |
| CN106885007A (en) | The hard sealing high-temp. ball valve of bellows | |
| CN202790650U (en) | Top-mounted ball valve seat fixing structure | |
| CN103711928B (en) | Ball valve | |
| CN204985822U (en) | Resilient -sealed ball valve | |
| CN205479466U (en) | Unsteady ball valve seating structure | |
| CN204226683U (en) | A kind of conical surface soft sealing structure for safety valve | |
| CN203585457U (en) | Check valve | |
| CN207393940U (en) | A kind of high-pressure heater triple-use valve sealing structure | |
| CN204805612U (en) | Ball valve seal structure | |
| CN204647382U (en) | A kind of novel underwater gate valve valve base sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
|
| RJ01 | Rejection of invention patent application after publication |