CN201373134Y - Metal sealing ball valve - Google Patents
Metal sealing ball valve Download PDFInfo
- Publication number
- CN201373134Y CN201373134Y CN200920301265U CN200920301265U CN201373134Y CN 201373134 Y CN201373134 Y CN 201373134Y CN 200920301265 U CN200920301265 U CN 200920301265U CN 200920301265 U CN200920301265 U CN 200920301265U CN 201373134 Y CN201373134 Y CN 201373134Y
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- China
- Prior art keywords
- valve
- valve body
- annular
- annular groove
- sealing
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- 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 relates to a ball valve, in particular to a metal sealing ball valve which comprises a valve body, a valve core, a valve body, a valve rod and a valve cover, wherein the valve cover is arranged at the left side of the valve body; sealing end surfaces which are attached mutually are arranged between the valve cover and the valve body; the sealing end surface of the valve cover is provided with annular grooves and annular bulges; and the sealing end surface of the valve body is provided with annular bulges and annular grooves which are adaptive to the annular grooves and the annular bulges on the sealing end surface of the valve cover. When the valve cover and the valve body are installed in a matching way, the annular grooves and the annular bulges are also matched with each other and generate a certain extrusion, thus achieving the sealing effect.
Description
Technical field
The utility model relates to a kind of ball valve, especially relates to a kind of ball valve that uses metallic seal.
Background technique
In the line transportation of water and other liquid, need on the pipeline that valve is housed it is controlled.And the sealing of valve is significant for the leakage of the liquid that prevents its conveying.According to statistics, in the fluid leakage problems of pipeline, the leakage problem that appears on the valve has accounted for a very big part, emphasis that so the sealing problem of this part is people always to be studied, the sealing of traditional valve is generally adopted and sealant tape, rubber sheet gasket etc., the seal approach of this class effect and bad under high-temperature high-pressure state, and these materials also corrode easily, cause leakage accident.The patent No. is that 01823257.4 patent of invention discloses a kind of valve that has metallic seal between the connected element of its main body, it comprises main body, main body is formed by two metal partss tightening mutually at least, wherein the described parts of valve body have their annular surfaces separately, and these annular surfaces are designed to when component-assembled in order to coupling together.One or more annular connecting parts are arranged on annular surface, and they closely are assembled together, and cooperate and the collaborative metallic seal that forms between the assembled parts.The patent No. be 01209738.1 model utility disclose a kind ofly be used for two, the seal arrangement of three-way valve and connecting tube joint, it comprises stuffing box gland and can cover the copper ball pad of the mouth of pipe, wherein stuffing box gland is made of plastic, described plastic sealing cover and described copper ball pad are for dividing body structure, in use, earlier described copper ball pad is covered the mouth of pipe, more described plastic nut is screwed on the mouth of pipe, described copper ball pad closely is connected with mouth of pipe inwall, reaches seal action.The method of the direct sealing of the metal that two kinds of design proposals of above-mentioned this all adopt, but the first string mainly is to utilize the cooperation of member shape to finish sealing, it is easy to be subjected to the restriction of precision, and cost height, difficulty are big in the production of reality; The plastic sealing gasket of second scheme is easy to corrode, and after making work for a long time, is easy to leak.
Summary of the invention
The utility model mainly is to solve that burn into takes place some sealing material of existing in prior technology easily and some sealing material can not bear the technical problem of High Temperature High Pressure etc., a kind of difficult erosion, good sealing effect is provided, can bears the metal seal ball valve of High Temperature High Pressure.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of metal seal ball valve, comprise valve body, spool, valve body, valve rod and valve gap, it is characterized in that described valve gap is located at the left side of valve body, be provided with the seal face of mutual applying between valve gap and the valve body, the seal face of described valve gap is provided with annular groove or annular projection, and the seal face of described valve body is provided with annular groove or suitable annular projection or the annular groove of annular projection on the seal face with valve gap.When valve gap matched installation with valve body, annular groove and annular projection also cooperatively interacted, and produce certain extruding, reach the effect of sealing.
As preferably, the cross section of described annular groove is an isosceles triangle, and the cross section of described annular projection is an isosceles triangle, and its drift angle is greater than the drift angle of annular groove cross section.When annular projection matches with annular groove, both mutual extrusion since the drift angle of annular projection greater than the drift angle of annular groove cross section, make both pass through after pushing more strong.
As preferably, the width of described annular groove is 1/5 to 1/3 of a valve body wall thickness.The width of groove is excessive, and when extruding took place for it, deformation was not enough, can not reach good sealing effect; When the width of groove was too small, its sealing contact surface was too small, can not reach fine sealing effect.
The beneficial effect that brings of the present utility model is, solved that burn into takes place some sealing material of existing in prior technology easily and some sealing material can not bear the technical problem of High Temperature High Pressure etc., reached difficult erosion, good sealing effect, can bear the characteristic of High Temperature High Pressure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of partial structurtes schematic representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: accompanying drawing 1 is a kind of structural representation of the present utility model; Accompanying drawing 2 is a kind of partial structurtes schematic representation of the present utility model.The utility model is a kind of metal seal ball valve, constitute by valve body 3, spool 5, valve handle 1, valve rod 2 and valve gap 4 etc., valve gap is located at the left side of valve body, be provided with the seal face of mutual applying between valve gap and the valve body, the seal face of described valve gap is provided with annular projection 41, the seal face of described valve body is provided with the suitable annular groove 31 of annular projection on the seal face with valve gap, the cross section of annular groove is an isosceles triangle, the cross section of described annular projection is an isosceles triangle, and its drift angle is greater than the drift angle of annular groove cross section.The width of annular groove is 1/5 to 1/3 of a valve body wall thickness.
When valve gap matches installation with valve body, annular groove and annular projection also cooperatively interact, and produce certain extruding, because the cross section of annular groove and annular projection is an isosceles triangle, and the drift angle of annular projection is greater than the drift angle of annular groove cross section, make both pass through the extruding after more strong, thereby reached good sealing effect.
So the utlity model has the features such as simple in structure, good sealing effect, assembling are simple, long service life.
Claims (3)
1. metal seal ball valve, comprise valve body, spool, valve body, valve rod and valve gap, it is characterized in that described valve gap is located at valve body left side, be provided with the seal face of mutual applying between valve gap and the valve body, the seal face of described valve gap is provided with annular groove or annular projection, and the seal face of described valve body is provided with annular groove or suitable annular projection or the annular groove of annular projection on the seal face with valve gap.
2. a kind of metal seal ball valve according to claim 1, the cross section that it is characterized in that described annular groove are an isosceles triangle, and the cross section of described annular projection is an isosceles triangle, and its drift angle is greater than the drift angle of annular groove cross section.
3. a kind of metal seal ball valve according to claim 1 and 2, the width that it is characterized in that described annular groove are 1/5 to 1/3 of valve body wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301265U CN201373134Y (en) | 2009-03-13 | 2009-03-13 | Metal sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301265U CN201373134Y (en) | 2009-03-13 | 2009-03-13 | Metal sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373134Y true CN201373134Y (en) | 2009-12-30 |
Family
ID=41499215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920301265U Expired - Fee Related CN201373134Y (en) | 2009-03-13 | 2009-03-13 | Metal sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373134Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929558A (en) * | 2010-09-16 | 2010-12-29 | 苏州德兰能源科技有限公司 | Labyrinth metallic seal regulating ball valve |
| CN108547991A (en) * | 2018-07-17 | 2018-09-18 | 江苏应流机械制造有限责任公司 | A kind of valve deck of forging ball valve |
| CN109555880A (en) * | 2018-10-18 | 2019-04-02 | 华东矿用设备有限公司 | A kind of high-sealing safety valve |
-
2009
- 2009-03-13 CN CN200920301265U patent/CN201373134Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929558A (en) * | 2010-09-16 | 2010-12-29 | 苏州德兰能源科技有限公司 | Labyrinth metallic seal regulating ball valve |
| CN108547991A (en) * | 2018-07-17 | 2018-09-18 | 江苏应流机械制造有限责任公司 | A kind of valve deck of forging ball valve |
| CN109555880A (en) * | 2018-10-18 | 2019-04-02 | 华东矿用设备有限公司 | A kind of high-sealing safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315800, No. 536, West Road, Beilun District, Zhejiang, Ningbo Patentee after: Watts water equipment manufacturing (Ningbo) Co., Ltd. Address before: 315800, No. 536, West Road, Beilun District, Zhejiang, Ningbo Patentee before: Watts Valve (Ningbo) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20170313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |