CN201391630Y - High temperature metallic sealing ball valve - Google Patents
High temperature metallic sealing ball valve Download PDFInfo
- Publication number
- CN201391630Y CN201391630Y CN200920080369U CN200920080369U CN201391630Y CN 201391630 Y CN201391630 Y CN 201391630Y CN 200920080369 U CN200920080369 U CN 200920080369U CN 200920080369 U CN200920080369 U CN 200920080369U CN 201391630 Y CN201391630 Y CN 201391630Y
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- Prior art keywords
- valve
- valve seat
- seat
- ball
- valve rod
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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 - Lifetime
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Abstract
The utility model relates to a high temperature metallic sealing ball valve. The ball valve comprises a ball body, a supporting valve seat, a ball body and a valve rod, wherein the valve rod is divided into an upper valve rod and a lower valve rod; the upper valve rod and the lower valve rod are respectively connected with the top and bottom of the ball body; the upper end of the upper valve rod is connected with a gear box; the gear box is provided with a hand wheel; an upper metallic valve seat and a lower metallic valve seat are arranged at the periphery of the ball body, and the valve seat is closely contacted with the ball body; and meanwhile, the periphery outside each valve seat is provided with a valve seat ring, the outside of the valve seat ring is provided with a plurality of spring seats, and the spring seats are contacted with the valve seat and the valve seat ring and provided with springs inside. The ball valve adopts the metallic valve seat for seal and the use of the springs leads to close contact between the valve seat ring and the valve seat, thus ensuring the sealing state between the valve seat and the outside valve body. In addition, due to the use of the springs, the mid-cavity pressure in the valve body rises abnormally, the springs can be compressed automatically to discharge mid-cavity pressure, thus realizing the automatic decompression of the mid-cavity and ensuring the safety of a pipeline.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of high-temperature metal seal ball-valve.
Background technique
Ball valve is a kind of of valve commonly used, and its closure member is a spheroid, and spheroid is made 90 ° of a kind of valves that rotation reaches unlatching, closes around the valve body center line.Ball valve major function in pipeline is the flow direction that cuts off, regulates the flow of medium or change medium.Ball valve is a kind of valve that is widely used in recent years, can be divided into floating ball ball valve, fixing spherical ball valve according to structural type.The structure of ball valve mainly comprises valve seat, valve body, valve rod and spheroid.At present, common seal ball-valve spheroid is a metal, but contacts with spheroid, and the merchant's seat material that seals is a soft material, and as some high molecular polymers etc., this material has good seal action under conventional temperature.But, when high temperature, when being used for high-temperature fuel gas, because during temperature very high (＞120-350 ℃), soft material is unable to bear high temperature, can soften even burn, thereby cause seal failure, does not have the effect of sealing.
The model utility content
The purpose of this utility model is to provide a kind of and also can normally uses under high temperature condition, plays the high-temperature metal seal ball-valve of seal action.
The utility model is achieved in that
A kind of high-temperature metal seal ball-valve, comprise valve body, support valve seat, spheroid, upper valve rod and lower valve rod, upper valve rod and lower valve rod are connected the top and the bottom of spheroid respectively, the upper valve rod upper end is connected with gear-box, handwheel is installed on the gear-box,, two metal seat valves is arranged in the upstream and downstream of spheroid side, valve seat closely contacts with spheroid, thereby guarantees the sealing effect of valve seat and spheroid.
Further scheme is: around each metal seat valve outside a seat ring is arranged, there is a spring seat that a plurality of springs are installed in the seat ring outside, and spring seat closely contacts with metal seat valve with seat ring.
The utility model changes flexible barrier material before into metal seat valve, and at high temperature metal seat valve can not damage, and spring is pushed pressure to particular usage valve seat ring and valve seat by spring seat, makes valve seat closely contact with spheroid, plays the seal action of ball valve; Simultaneously, make particular usage valve seat ring and the valve body outside also be sealing state.
The utility model is owing to adopted spring, and cavity pressure in valve body lumen pressure anomaly raises, and the automatic pressure spring of energy discharges is realized the lumen releasing pressure automatically, guarantees the safety of pipeline.
Description of drawings
Fig. 1 is the utility model internal structure schematic representation;
Fig. 2 is the partial enlarged drawing of the utility model valve seat, seat ring, spring seat and spring section.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, 2, a kind of high-temperature metal seal ball-valve, comprise valve body 1, support valve seat 2, spheroid, 3, upper valve rod 4 and lower valve rod 5, upper valve rod 4 and lower valve rod 5 are connected the top and the bottom of spheroid 3 respectively, and upper valve rod 4 upper ends are connected with gear-box 6, and handwheel 7 is installed on the gear-box 6, in the upstream and downstream of spheroid 3 side, two metal seat valves 8 are arranged, and valve seat 8 closely contacts with spheroid 3, thereby guarantees the sealing effect of valve seat and spheroid; Simultaneously, in each metal seat valve 8 outside a seat ring 9 is arranged all around, there is a spring seat 10 that a plurality of springs 11 are installed in the seat ring outside, and spring seat closely contacts with metal seat valve with seat ring.Usage mode of the present utility model is similar with conventional seal ball-valve.
Claims (2)
1, a kind of high-temperature metal seal ball-valve, comprise valve body (1), support valve seat (2), spheroid (3), upper valve rod (4) and lower valve rod (5), upper valve rod (4) and lower valve rod (5) are connected the top and the bottom of spheroid (3) respectively, upper valve rod (4) upper end is connected with gear-box (6), handwheel (7) is installed on the gear-box (6), it is characterized in that: around spheroid (3), two metal seat valves (8) with spheroid (3) fluid-tight engagement are arranged up and down.
2, high-temperature metal seal ball-valve according to claim 1, it is characterized in that: around each metal seat valve (8) outside, a seat ring (9) is arranged, there is a spring seat (10) that a plurality of springs (11) are installed in the seat ring outside, and spring seat closely contacts with metal seat valve with seat ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920080369U CN201391630Y (en) | 2009-04-22 | 2009-04-22 | High temperature metallic sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920080369U CN201391630Y (en) | 2009-04-22 | 2009-04-22 | High temperature metallic sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391630Y true CN201391630Y (en) | 2010-01-27 |
Family
ID=41598455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920080369U Expired - Lifetime CN201391630Y (en) | 2009-04-22 | 2009-04-22 | High temperature metallic sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391630Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387786A (en) * | 2017-03-02 | 2017-11-24 | 成都凯远流体控制工程有限公司 | Have the multi-functional pressure/flow control valve and its operating method of good sealing property concurrently |
| CN108953650A (en) * | 2017-05-22 | 2018-12-07 | 湖南北科通用阀门有限公司 | A kind of electric magnetic ball valve for being not easy to reveal |
-
2009
- 2009-04-22 CN CN200920080369U patent/CN201391630Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387786A (en) * | 2017-03-02 | 2017-11-24 | 成都凯远流体控制工程有限公司 | Have the multi-functional pressure/flow control valve and its operating method of good sealing property concurrently |
| CN107387786B (en) * | 2017-03-02 | 2023-04-28 | 成都凯远流体控制工程有限公司 | Multifunctional pressure/flow control valve with good sealing performance and operation method thereof |
| CN108953650A (en) * | 2017-05-22 | 2018-12-07 | 湖南北科通用阀门有限公司 | A kind of electric magnetic ball valve for being not easy to reveal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
|
| CX01 | Expiry of patent term |