CN202484346U - Ball valve seat structure with spring sealing mechanism - Google Patents
Ball valve seat structure with spring sealing mechanism Download PDFInfo
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- CN202484346U CN202484346U CN2012201272777U CN201220127277U CN202484346U CN 202484346 U CN202484346 U CN 202484346U CN 2012201272777 U CN2012201272777 U CN 2012201272777U CN 201220127277 U CN201220127277 U CN 201220127277U CN 202484346 U CN202484346 U CN 202484346U
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- spring
- valve seat
- trim ring
- sealing
- annular
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Abstract
The utility model discloses a ball valve seat structure with a spring sealing mechanism. The ball valve seat structure comprises a ball body, a valve body, a valve seat which is arranged on the valve body and matched with the ball body in a sealing manner and the spring sealing mechanism, wherein a slippage cavity is formed between the valve seat and the valve body; an annular pressing sleeve is arranged in the slippage cavity in a sliding manner; a middle section sealing cavity is formed on the inner side of the valve seat, which is opposite to the slippage cavity; the spring sealing mechanism also comprises an annular pressing ring assembly and a plurality of cylindrical helical springs; a plurality of spring holes adaptively corresponding to the cylindrical helical springs and a pressing ring slot butted outside the spring holes are formed at the back of the annular pressing sleeve; the annular pressing ring assembly is arranged in the pressing ring slot; the outer ends of the cylindrical helical springs are pressed against the annular pressing ring assembly; and spring sealing pieces are arranged on the upper contact surface and the lower contact surface of the annular pressing ring assembly, which are butted to the pressing ring slot. The ball valve seat structure has the advantages of long service life and low maintenance cost.
Description
Technical field
The utility model relates to a kind of valve seat construction of ball valve, specifically is meant a kind of ball seat structure that is provided with spring sealed mechanism.
Background technique
For the operating mode that contains solid dielectric in the fluid, metal hard-sealing ball valve (referring to Fig. 1) is a most suitable present valve.Ball valve is provided with spring (in figure shown in the I mark) behind at valve seat usually, and the compression pretightening force through spring can guarantee the sealing of can fitting closely of valve seat and the spheroid of ball valve.In addition; Under different temperature, the size of ball valve component can change because expand with heat and contract with cold, and causes the stuck of valve in order to prevent because of the change of element size; Usually also need spring be set in the behind of ball seat; The spring of ball valve normally adopts cylindrically coiled spring or belleville spring, compensates the dimensional changes of valve components through the dilatation of spring, to prevent the stuck of valve.
As shown in Figure 2, be the valve seat construction that typically adopts the metal hard-sealing ball valve of cylindrically coiled spring, 1' is the spheroid of ball valve; 2' is a valve seat, and 3' is a valve seat stage casing Sealing, and 4' is annular gland; 5' is a cylindrically coiled spring, and 6' is a valve seat segmentum laterale Sealing, and 7' is a valve body.
Through utilizing the pretightening force of cylindrically coiled spring, the extruding of valve seat 2' and valve base sealing gland 4', valve seat stage casing Sealing 3' can guarantee the reliable sealing of valve seat 2' and valve body 7'; And the purpose that the valve seat segmentum laterale Sealing 6' that is arranged in the valve seat segmentum laterale is provided with is the solid dielectric entering of anti-fluid and the spring chamber 51' that deposits to the cylindrically coiled spring place, but because cylindrically coiled spring 5' does not apply pretightening force to valve seat segmentum laterale Sealing 6', in other words; Valve seat segmentum laterale Sealing 6' does not compress sealing with valve body and valve seat, and sealability is relatively poor, after the long-time use of valve; Valve seat and the gap between the valve seat that solid dielectric in the fluid can belong to through this valve seat segmentum laterale Sealing 6' slowly enter in the spring chamber 51' at cylindrically coiled spring place; And be deposited in the spring chamber 51', when solid dielectric amassed completely in spring chamber, cylindrically coiled spring 5' had lost the deformation adjustment ability; When temperature variation; When particularly temperature raises, when the element size of valve becomes big, because cylindrically coiled spring 5' has lost deformation-compensated ability; Can cause the stuck of valve components, thereby cause the valve can not switch motion.
Summary of the invention
The purpose of model utility is to deposit in the spring chamber for fear of solid dielectric, guarantees that spring has elasticity all the time in long-term using process, and it is stuck because of the inefficacy of spring to prevent valve, thus the working life of improving ball valve.
For realizing above-mentioned purpose; The technological scheme of the utility model is to include spheroid, valve body and be arranged at the valve seat that cooperates with ball seal on the valve body; Be provided with the slippage chamber between described valve seat and the valve body; Slide in the described slippage chamber and be provided with annular gland; The inboard in the relative slippage of described valve seat chamber is provided with the stage casing Seal cage, and the bottom surface of this stage casing Seal cage borders on valve body, the side communicates with the slippage chamber, is provided with the stage casing Sealing in this stage casing Seal cage; The head end of said annular gland cooperates with stage casing Sealing apical grafting; Be provided with the gap that supplies pressure medium entering slippage chamber that annular gland enforcement is compressed between the bottom surface of the segmentum laterale in the relative slippage of described valve seat chamber and the valve body, it is characterized in that: also include spring sealed mechanism, this spring sealed mechanism includes annular trim ring assembly and a plurality of cylindrically coiled spring; The back of the body end of described annular gland is provided with a plurality of corresponding adaptive spring eyes with cylindrically coiled spring and the adjoining outer trim ring groove of spring eye that is arranged at; Described annular trim ring assembly is arranged in this trim ring groove, the outer end of described cylindrically coiled spring and annular trim ring assembly effect butt, and what this annular trim ring assembly and trim ring groove were adjoining is provided with spring seals on two surface of contact up and down.Through this setting, the outer end of cylindrically coiled spring is sealed through annular trim ring assembly and spring seals, prevent that thus solid dielectric from entering in the spring eye, guarantee the normal deformation of cylindrically coiled spring, prevent its elastic failure.
Further being provided with is that described annular trim ring assembly includes spring pressuring ring and spring seals trim ring; The inner side surface of described spring pressuring ring and the outer end of cylindrically coiled spring effect butt; The both sides up and down of the outer end of spring pressuring ring are provided with the spring seals short slot; Described spring seals is arranged in this spring seals short slot; Described spring seals trim ring is fixedly connected on spring pressuring ring, and the spring seals trim ring is provided with the compressed part with the outboard end compression fit of this spring seals.Through this setting, spring seals receives the extruding of spring seals trim ring, improves know clearly annular trim ring assembly and the adjoining sealing of two surface of contact up and down of trim ring groove.
Further being provided with is that described spring seals trim ring is fixedly mounted on the spring pressuring ring through fastening screw trip bolt.
Further being provided with is that said a plurality of spring eye annular is evenly arranged on the annular gland.Through this setting, make whole valve seat receive the active force of cylindrically coiled spring balanced more, effectively improve valve base sealing property and solve the stuck problem of valve.
Further setting is that the cross section of described stage casing Sealing is positive isosceles trapezoid, and said annular gland becomes the reverse slope setting with the head end of stage casing Sealing apical grafting.
Bottom surface and the gap between the valve body that further setting is the segmentum laterale in the relative slippage of described valve seat chamber are provided with the segmentum laterale Sealing.
Be provided with the medial segment Sealing between bottom surface that further setting is described valve seat medial segment and the valve body.
Further be provided with is that said spring seals adopts flexible graphite material.
Further being provided with is that described stage casing Sealing, segmentum laterale Sealing and medial segment Sealing all adopt flexible graphite material.
The utility model has the advantages that, can prevent solid dielectric spring blocking hole, thereby prevent that solid dielectric from influencing the deformation of cylindrically coiled spring, cause the stuck problem of valve, make ball valve have longer long service life.
Below in conjunction with Figure of description and embodiment the utility model is done further introduction.
Description of drawings
Fig. 1 traditional metal hard seal ball valve structural representation;
The ball seat structural representation of Fig. 2 Traditional use cylindrically coiled spring;
Fig. 3 the utility model embodiment structural representation.
Embodiment
Through embodiment the utility model is carried out concrete description below; Only be used for the utility model is further specified; Can not be interpreted as the qualification to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned model utility.
The embodiment of the utility model as shown in Figure 3; Include spheroid 1, valve body 2 and be arranged at the valve seat 3 that is sealed and matched with spheroid 1 on the valve body 2; Be provided with slippage chamber 31 between described valve seat 3 and the valve body 1; Slide in the described slippage chamber 31 and be provided with annular gland 4; Be provided with the gap 511 that supplies pressure medium entering slippage chamber that annular gland enforcement is compressed between the bottom surface of the segmentum laterale in the relative slippage of described valve seat chamber 31 and the valve body 2, the inboard in described valve seat 3 relative slippage chambeies 31 is provided with stage casing Seal cage 311, and the bottom surface of this stage casing Seal cage 311 borders on valve body 2, the side communicates with slippage chamber 31; Be provided with stage casing Sealing 312 in this stage casing Seal cage 311; The head end of said annular gland 4 cooperates with stage casing Sealing 312 apical graftings, and the cross section of the described stage casing of present embodiment Sealing 312 is positive isosceles trapezoid, 43 one-tenth reverse slope settings of head end of said annular gland 4 and stage casing Sealing apical grafting.
In addition; Present embodiment also includes spring sealed mechanism; This spring sealed mechanism includes annular trim ring assembly 5 and a plurality of cylindrically coiled springs 6, and the back of the body end of described annular gland 4 is provided with a plurality of and cylindrically coiled spring 6 corresponding adaptive spring eyes 41 and the adjoining spring eye trim ring grooves 42 outward that are arranged at, and said a plurality of spring eye 41 annulars of present embodiment are evenly arranged on the annular gland 4; Make whole valve seat 3 receive the active force of cylindrically coiled spring 5 balanced more; Effectively improve valve seat 3 sealings and solve the stuck problem of valve, described annular trim ring assembly 5 is arranged in this trim ring groove 42, the outer end of described cylindrically coiled spring 6 and annular trim ring assembly 5 effect butts; Be provided with spring seals 51 on adjoining two surface of contact up and down of this annular trim ring assembly 5 and trim ring groove 42; So, the outer end of cylindrically coiled spring 6 is sealed with spring seals 51 through annular trim ring assembly 5, prevent that thus solid dielectric from entering in the spring eye 41; Guarantee the normal deformation of cylindrically coiled spring 6, prevent its elastic failure.
The described annular trim ring assembly 5 of present embodiment includes spring pressuring ring 52 and spring seals trim ring 53; The outer end effect butt of the inner side surface of described spring pressuring ring 52 and cylindrically coiled spring 6; The both sides up and down of the outer end of spring pressuring ring 52 are provided with spring seals short slot 521; Described spring seals 51 is arranged in this spring seals short slot 521; Described spring seals trim ring 53 is fixedly connected on spring pressuring ring 52 through fastening screw trip bolt 54, and spring seals trim ring 53 is provided with the compressed part 531 with the outboard end compression fit of this spring seals 51.
In addition; In order to improve the sealing between valve seat 3 and the valve body 2; Gap 511 is provided with segmentum laterale Sealing 32 between the bottom surface of the segmentum laterale in described valve seat 3 relative slippage chambeies 31 and the valve body; Play the effect of impurity in the filter medium, be provided with medial segment Sealing 33 between the bottom surface of described valve seat 3 medial segments and the valve body 2, said spring seals 51, stage casing Sealing 312, segmentum laterale Sealing 32 and medial segment Sealing 33 adopt flexible graphite materials.
Claims (9)
1. ball seat structure that is provided with spring sealed mechanism; Include spheroid, valve body and be arranged at the valve seat that cooperates with ball seal on the valve body; Be provided with the slippage chamber between described valve seat and the valve body; Slide in the described slippage chamber and be provided with annular gland; The inboard in the relative slippage of described valve seat chamber is provided with the stage casing Seal cage, and the bottom surface of this stage casing Seal cage borders on valve body, the side communicates with the slippage chamber, is provided with the stage casing Sealing in this stage casing Seal cage; The head end of said annular gland cooperates with stage casing Sealing apical grafting; Be provided with the gap that supplies pressure medium entering slippage chamber that annular gland enforcement is compressed between the bottom surface of the segmentum laterale in the relative slippage of described valve seat chamber and the valve body, it is characterized in that: also include spring sealed mechanism, this spring sealed mechanism includes annular trim ring assembly and a plurality of cylindrically coiled spring; The back of the body end of described annular gland is provided with a plurality of corresponding adaptive spring eyes with cylindrically coiled spring and the adjoining outer trim ring groove of spring eye that is arranged at; Described annular trim ring assembly is arranged in this trim ring groove, the outer end of described cylindrically coiled spring and annular trim ring assembly effect butt, and what this annular trim ring assembly and trim ring groove were adjoining is provided with spring seals on two surface of contact up and down.
2. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 1; It is characterized in that: described annular trim ring assembly includes spring pressuring ring and spring seals trim ring; The inner side surface of described spring pressuring ring and the outer end of cylindrically coiled spring effect butt; The both sides up and down of the outer end of spring pressuring ring are provided with the spring seals short slot; Described spring seals is arranged in this spring seals short slot, and described spring seals trim ring is fixedly connected on spring pressuring ring, and the spring seals trim ring is provided with the compressed part with the outboard end compression fit of this spring seals.
3. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 2, it is characterized in that: described spring seals trim ring is fixedly mounted on the spring pressuring ring through fastening screw trip bolt.
4. according to claim 1 or 2 or 3 described a kind of ball seat structures that are provided with spring sealed mechanism, it is characterized in that: said a plurality of spring eye annulars are evenly arranged on the annular gland.
5. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 4, it is characterized in that: the cross section of described stage casing Sealing is positive isosceles trapezoid, said annular gland becomes the reverse slope setting with the head end of stage casing Sealing apical grafting.
6. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 5 is characterized in that: the bottom surface and the gap between the valve body of the segmentum laterale in the relative slippage of described valve seat chamber are provided with the segmentum laterale Sealing.
7. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 6 is characterized in that: be provided with the medial segment Sealing between the bottom surface of described valve seat medial segment and the valve body.
8. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 7 is characterized in that: said spring seals adopts flexible graphite material.
9. a kind of ball seat structure that is provided with spring sealed mechanism according to claim 8, it is characterized in that: described stage casing Sealing, segmentum laterale Sealing and medial segment Sealing all adopt flexible graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201272777U CN202484346U (en) | 2012-03-29 | 2012-03-29 | Ball valve seat structure with spring sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201272777U CN202484346U (en) | 2012-03-29 | 2012-03-29 | Ball valve seat structure with spring sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484346U true CN202484346U (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201272777U Expired - Lifetime CN202484346U (en) | 2012-03-29 | 2012-03-29 | Ball valve seat structure with spring sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606764A (en) * | 2012-03-29 | 2012-07-25 | 浙江超达阀门股份有限公司 | Ball valve seat structure with spring sealing mechanism |
| CN108644405A (en) * | 2018-07-06 | 2018-10-12 | 温州金汇力阀门有限公司 | A kind of high pressure seals diclinic degree ball valve firmly |
-
2012
- 2012-03-29 CN CN2012201272777U patent/CN202484346U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606764A (en) * | 2012-03-29 | 2012-07-25 | 浙江超达阀门股份有限公司 | Ball valve seat structure with spring sealing mechanism |
| CN108644405A (en) * | 2018-07-06 | 2018-10-12 | 温州金汇力阀门有限公司 | A kind of high pressure seals diclinic degree ball valve firmly |
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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 |
Owner name: CHAODA VALVE GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG CHAODA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325000 Patentee after: Chaoda Valve Group Co., Ltd. Address before: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325000 Patentee before: Zhejiang Chaoda Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |