CN202708180U - Heat resisting ball valve - Google Patents
Heat resisting ball valve Download PDFInfo
- Publication number
- CN202708180U CN202708180U CN 201220347820 CN201220347820U CN202708180U CN 202708180 U CN202708180 U CN 202708180U CN 201220347820 CN201220347820 CN 201220347820 CN 201220347820 U CN201220347820 U CN 201220347820U CN 202708180 U CN202708180 U CN 202708180U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- sealing
- ball valve
- spheroid
- 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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Abstract
The utility model discloses a heat resisting ball valve which comprises a valve body, a valve seat and a ball body, wherein a spring is arranged between the valve body and the valve seat, an O-shaped sealing ring is arranged between the valve body and the valve seat, and an inserting groove is arranged on the valve seat. A sealing inserting piece is matched with and arranged on the inserting groove, a sealing bump is arranged on the valve seat, and the end face of the sealing bump abuts against the surface of the ball body to form the sealing surface of the ball valve. An impurity collecting groove is arranged on the front side of the sealing surface. The impurity collecting groove is arranged on the valve seat so that an impurity can fall into the impurity collecting groove, and a sealing effect can not be affected. Meanwhile, the impurity collecting groove is arranged and the sealing bump has elasticity so as to further improve the sealing effect of the ball valve.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of high-temperature resistant ball valve.
Background technique
One of widely used valve of ball valve, its working principle is the same with stopcock, all is to make valve opening and closing by rotary spool, but lighter than stopcock switch, relative volume is little, can make big-diameter ball valve.Ball valve sealing is reliable, and is simple in structure, easy to maintenance, and sealing surface and the spheroid closed state of being everlasting is difficult for by the medium erosion, thereby is widely used in industries such as oil, chemical industry, metallurgy.
Existing ball valve mainly comprises two kinds of fixing ball valve and floating ball valves.The spheroid of fixing ball valve is fixed, spheroid is provided with supporting axis, bearing is housed on the supporting axis, therefore after being subjected to pressure medium, spheroid does not produce movement, and the valve seat generation is mobile, Sealing is pressed on the spheroid, with the assurance sealing, so the operation moment of torsion of this class ball valve is little, is applicable to high pressure and bigbore valve.
The spheroid of floating ball valve floats, under the effect of pressure medium, spheroid can produce certain displacement and be pressed on the sealing surface of outlet end, guarantee the sealing of ball valve, the good airproof performance of floating ball valve, but spheroid bears the seal ring that the load of working medium has all been passed to outlet end, therefore will consider the work loads of living the spheroid medium that can sealing ring material stand, so floating ball valve generally is only applicable to the occasion of mesolow.
Shown in Fig. 1,2, the spheroid 3 that fixing ball valve generally comprises valve body 1, valve seat 2 and seals, be provided with spring 4 between valve body 1 and the valve seat 2, in the situation that valve seat 2 can be under pressure again in valve body move left and right, also be provided with O-ring seals 5 between valve body 1 and the valve seat 2, valve seat 2 is generally metal and makes, and offers a slot on it, insert a nonmetallic sealed inserted piece in the slot, when surface and the spheroid close contact of plug-in unit then can be realized sealing.Because under high temperature condition, the nonmetallic sealed inserted piece that general ball valve seals can lose efficacy, so existing high-temperature ball valve all can adopt a seal convexity 6 direct the contacts with spheroid that arrange at valve seat to seal, but because the both sides of contact are metals, and both do not have elasticity, cause the sealing effect neither be fine, in addition, impurity in the fluid can flow to sealing place along direction as shown, also can have a strong impact on sealability.
Summary of the invention
The utility model purpose provides a kind of high-temperature resistant ball valve, by the improvement to structure, has improved the sealing effect of ball valve.
The technical solution of the utility model is: a kind of high-temperature resistant ball valve, comprise valve body, valve seat and spheroid, be provided with spring between described valve body and the valve seat, be provided with O-ring seals between described valve body and the valve seat, offer slot on the described valve seat, cooperate with described slot to be provided with a sealed inserted piece, also be provided with seal convexity on the described valve seat, conflict and consist of the sealing surface of described ball valve in the end face of described seal convexity and the surface of described spheroid, described sealing surface front side is provided with an impurity accepting groove.
Further technological scheme, the end face of described seal convexity is ramp structure.
In the technique scheme, this ball valve is by valve body, valve seat and spheroid consist of, be provided with spring and O-ring seals between valve body and the valve seat, offer slot on the valve seat, sealed inserted piece is set in the slot, on valve seat, also be provided with seal convexity, the end face of sealing projection is inclined design, the end face of seal convexity and the conflict of spheroid consist of the sealing surface of ball valve, offer an impurity accepting groove in the sealing surface front side, when in the process that fluid flows to sealing surface, all impurity all can drop in the impurity accepting groove, can not affect the effect of sealing surface, and owing to offering of impurity accepting groove, the seal convexity of impurity accepting groove and valve base chamber is equivalent to a thin-walled, thereby has certain elasticity, can produce certain elastic strain when seal convexity contacts when being under pressure with spheroid, and then can better seal.
The utility model has the advantages that:
1. the utility model is set to the inclined-plane by the end face of seal convexity, the impurity accepting groove is offered in front side at seal convexity and spheroid surface of contact, so that the impurity in the fluid can fall into the impurity accepting groove, can not affect sealing effect, and because offering so that seal convexity has certain elasticity of impurity accepting groove further improved the sealing effect of ball valve;
2. the utility model is simple in structure, and is easy to use, and is easy to realize, is fit to promote the use of.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is ball-valve structure schematic representation in the prior art;
Fig. 2 is valve seat construction schematic representation in the prior art;
Fig. 3 is the utility model embodiment one structural representation;
Fig. 4 is valve seat construction schematic representation among the utility model embodiment one.
Wherein: 1, valve body; 2, valve seat; 3, spheroid; 4, spring; 5, O-ring seals; 6, seal convexity; 7, valve body; 8, valve seat; 9, spheroid; 10, spring; 11, O-ring seals; 12, seal convexity; 13, impurity accepting groove.
Embodiment
Embodiment one: shown in Fig. 3,4, a kind of high-temperature resistant ball valve, comprise valve body 7, valve seat 8 and spheroid 9, be provided with spring 10 between described valve body 7 and the valve seat 8, be provided with O-ring seals 11 between described valve body 7 and the valve seat 8, offer slot on the described valve seat 8, cooperate with described slot and to be provided with a sealed inserted piece, also be provided with seal convexity 12 on the described valve seat 8, conflict and consist of the sealing surface of described ball valve in the surface of the end face of described seal convexity 12 and described spheroid 9, described sealing surface front side is provided with an impurity accepting groove 13, and the end face of described seal convexity 12 is ramp structure.
Ball valve in use, in the process that fluid flows to sealing surface in ball valve, impurity in the fluid is before reaching sealing surface, impurity all can fall into the impurity accepting groove of sealing surface front side, thereby can not affect the sealing surface effect, owing to offering of impurity accepting groove, the seal convexity of impurity accepting groove and valve base chamber is equivalent to a thin-walled, have certain elasticity, can produce certain elastic strain when seal convexity contacts when being under pressure with spheroid, and then can better seal.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. high-temperature resistant ball valve, comprise valve body (7), valve seat (8) and spheroid (9), be provided with spring (10) between described valve body (7) and the valve seat (8), be provided with O-ring seals (11) between described valve body (7) and the valve seat (8), described valve seat offers slot on (8), cooperate with described slot and to be provided with a sealed inserted piece, also be provided with seal convexity (12) on the described valve seat (8), it is characterized in that: conflict and consist of the sealing surface of described ball valve in the surface of the end face of described seal convexity (12) and described spheroid (9), described sealing surface front side is provided with an impurity accepting groove (13).
2. a kind of high-temperature resistant ball valve according to claim 1, it is characterized in that: the end face of described seal convexity (12) is ramp structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347820 CN202708180U (en) | 2012-07-18 | 2012-07-18 | Heat resisting ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347820 CN202708180U (en) | 2012-07-18 | 2012-07-18 | Heat resisting ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708180U true CN202708180U (en) | 2013-01-30 |
Family
ID=47588486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347820 Expired - Fee Related CN202708180U (en) | 2012-07-18 | 2012-07-18 | Heat resisting ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758932A (en) * | 2012-07-18 | 2012-10-31 | 嘉士凯（苏州）阀门配件有限公司 | High-temperature-resistant ball valve |
-
2012
- 2012-07-18 CN CN 201220347820 patent/CN202708180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758932A (en) * | 2012-07-18 | 2012-10-31 | 嘉士凯（苏州）阀门配件有限公司 | High-temperature-resistant ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |