CN101418864B - Bidirectional full flow passage hard seal eccentric semi ball valve - Google Patents
Bidirectional full flow passage hard seal eccentric semi ball valve Download PDFInfo
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- CN101418864B CN101418864B CN2008102367448A CN200810236744A CN101418864B CN 101418864 B CN101418864 B CN 101418864B CN 2008102367448 A CN2008102367448 A CN 2008102367448A CN 200810236744 A CN200810236744 A CN 200810236744A CN 101418864 B CN101418864 B CN 101418864B
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- washer
- flow passage
- eccentric
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Abstract
The invention discloses a bidirectional whole flow passage hard sealing eccentric hemisphere valve, which comprises a valve body. The valve body is connected with a valve cover, the inside of the valve body is provided with an eccentric crankshaft, the eccentric crankshaft passes through the valve cover and is sealed with the valve cover, the eccentric crankshaft is connected with a ball crown, one side of the valve body is provided with the valve seat which contacts with a valve seat washer, the valve seat and the valve seat washer are limited by a clamping ring, a reverse direction hydraulic pressure compaction chamber is arranged along the circumference between the valve seat and the valve seat washer, and the reverse hydraulic pressure compaction chamber is communicated with a flow passage. The valve has simple structure and convenient control, realizes reverse sealing by arranging a reverse direction hydraulic pressure compaction chamber along the circumference between the valve seat and the valve seat washer, realizes bidirectional mounting and use, and enlarges the using range of whole flow passage hard sealing eccentric hemisphere valve.
Description
Technical field
The invention belongs to the pipeline control valve door, be specifically related to a kind of eccentric half-ball valve.
Background technique
It is a lot of in pipeline, to work the ball valve kind of blocking medium, and hard seal eccentric semi ball valve and soft seal eccentric half-ball valve are arranged.The sealing of hard seal eccentric semi ball valve is a metal to metal, and one-way sealing, product have the cutting function.Hard seal eccentric semi ball valve can cut off ducted foreign material on pipeline, make pipeline unimpeded, but because it is the undergauge valve, damage by water is bigger, can cause the loss of the energy.Its sealing configuration causes the valve can only one-way sealing, and valve can not play the effect of sealing when oppositely installing, so the product of the type can not oppositely be installed.Certain restriction is arranged in the use, and application area is not very wide.
Summary of the invention
The object of the present invention is to provide a kind of ability bidirectional full flow passage hard seal eccentric semi ball valve, to address the above problem.
Technological scheme of the present invention is: bidirectional full flow passage hard seal eccentric semi ball valve, and it comprises valve body, valve body is connected with valve gap; Eccentric crankshaft is set in the valve body, and eccentric crankshaft passes valve gap and sealing with it, connects spherical crown on the eccentric crankshaft; Valve body one side is established valve seat, and valve seat contacts with valve washer, and valve seat and valve washer are spacing by trim ring; Be provided with reverse water pressure along circumference between valve seat and the valve washer and compress the chamber, reverse water pressure compresses the chamber and is connected with runner.Said valve seat evenly is provided with boss and groove with the end face that contacts between the valve washer along circumference, and reverse water pressure compresses the chamber and is made up of groove, boss and valve washer end face or valve seat end face.
This valve forward is installed: because the existence of eccentric distance e, when valve closing, the pressure of water tightly is pressed on the valve seat spherical crown in the valve, and hydraulic pressure is big more, and the power of closing is also big more, and sealability is good more; During reverse the installation; Valve seat is that reverse flow gets between valve seat and the valve washer and to compress the chamber along the reverse water pressure of circumference and valve seat is pressed on the spherical crown sealing surface being pressed in tightly under the self-packing effect on the spherical crown sealing surface; Reach the purpose of two way sealed; Valve seat tightly contacts with spherical crown, plays the function of foreign material in the cutting pipeline.This is simple in structure, and control is convenient; Full flow passage hard seal eccentric semi ball valve is realized two-way installing and using, and has enlarged the using scope of full flow passage hard seal eccentric semi ball valve.
Description of drawings
Fig. 1 bidirectional full flow passage hard seal eccentric semi ball valve structural representation.
Fig. 2 reverse water pressure compresses the chamber schematic representation.
Fig. 3 valve seat schematic representation.
Embodiment
Present embodiment is used for the explanation to claims of the present invention; The scope that the present invention requires to protect is not limited to following structure, those skilled in the art according to the technological scheme of claim 1 record indicative and indicative done be different from present embodiment structure also be protection scope of the present invention.
As shown in Figure 1, connect eccentric crankshaft 2 in the semispherical valve valve body 1, valve gap 8 is connected with valve body 1, and eccentric crankshaft 2 passes valve gap 8 and sealing with it.Valve gap 8 outer valve shafts are connected with drive unit 9 in the present embodiment.Drive unit 9 can be manual worm gearing, automatically worm gearing.This structure is identical with existing semispherical valve drive unit.
Connect the on-off structure that spherical crown 3 constitutes eccentric semi-spherical on the eccentric crankshaft 2, connect the two-way hard seal device on valve body 1 one side runners, the two-way hard seal device is located at the water exit end of valve forward flow in the present embodiment.
The two-way hard seal device is as shown in Figure 2, connects valve seat 5 in the valve body 1, and valve seat 5 contacts with valve washer 6, and valve seat 5 is spacing by trim ring 4 with valve washer 6, and trim ring 5 is connected with valve body 1; Establish seal ring 10 between valve seat 5 and the valve body 1.Be provided with reverse water pressure along circumference between valve seat 5 and the valve washer 6 and compress chamber 11, reverse water pressure compresses chamber 11 and is connected with runner 12.Be provided with rubber washer 13 between valve washer 6 and the trim ring.
As shown in Figure 3, valve seat 5 evenly is provided with boss 14 and groove 15 with contacting between the end face of valve washer 6 along circumference, and reverse water pressure compresses the chamber and is made up of groove 15, boss 14 and valve washer 6 end faces.Boss and groove also can be located on the valve washer, and reverse water pressure compresses the chamber and then is made up of boss and groove and valve seat end face.
This valve has adopted eccentric crankshaft, makes valve have good selfsealings property: during the forward water inlet, because the existence of eccentric distance e; When valve closing; The pressure F of water makes spherical crown that a counterclockwise moment F*e around crankshaft center line arranged in the valve, and spherical crown tightly is pressed on the valve seat, and hydraulic pressure is big more; The power of closing is also big more, promptly has good selfsealings.During reverse the water inlet, owing on the valve seat guiding gutter (groove) is arranged, water flows to from guiding gutter in the circular groove of valve seat; Form a pressure chamber, under the effect of valve seat water pressure F in pressure chamber, its sealing surface is pressed on the spherical crown sealing surface by the effect of water pressure F tightly; Hydraulic pressure is big more; Sealability is good more, and when promptly oppositely intaking, valve seat has selfsealings property.
Claims (2)
1. bidirectional full flow passage hard seal eccentric semi ball valve, it comprises valve body, valve body is connected with valve gap; Eccentric crankshaft is set in the valve body, and eccentric crankshaft passes valve gap and sealing with it, connects spherical crown on the eccentric crankshaft; It is characterized in that valve body one side establishes valve seat, valve seat contacts with valve washer, and valve seat and valve washer are spacing by trim ring; Be provided with reverse water pressure along circumference between valve seat and the valve washer and compress the chamber, reverse water pressure compresses the chamber and is connected with runner; Said valve seat evenly is provided with boss and groove with the end face that contacts between the valve washer along circumference, and reverse water pressure compresses the chamber and is made up of groove, boss and valve washer end face or valve seat end face.
2. bidirectional full flow passage hard seal eccentric semi ball valve according to claim 1 is characterized in that being provided with rubber washer between valve washer and the trim ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102367448A CN101418864B (en) | 2008-12-08 | 2008-12-08 | Bidirectional full flow passage hard seal eccentric semi ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102367448A CN101418864B (en) | 2008-12-08 | 2008-12-08 | Bidirectional full flow passage hard seal eccentric semi ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418864A CN101418864A (en) | 2009-04-29 |
| CN101418864B true CN101418864B (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102367448A Active CN101418864B (en) | 2008-12-08 | 2008-12-08 | Bidirectional full flow passage hard seal eccentric semi ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101418864B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016777A (en) * | 2012-12-19 | 2013-04-03 | 武汉大禹阀门股份有限公司 | Eccentric half-ball valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014094593A1 (en) * | 2012-12-19 | 2014-06-26 | 武汉大禹阀门股份有限公司 | Eccentric hemisphere valve |
| CN106641317A (en) * | 2016-12-16 | 2017-05-10 | 安徽铜都流体科技股份有限公司 | Adjustable bi-directional pressure-bearing eccentric hemispherical valve |
-
2008
- 2008-12-08 CN CN2008102367448A patent/CN101418864B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016777A (en) * | 2012-12-19 | 2013-04-03 | 武汉大禹阀门股份有限公司 | Eccentric half-ball valve |
| CN103016777B (en) * | 2012-12-19 | 2015-02-25 | 武汉大禹阀门股份有限公司 | Eccentric half-ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418864A (en) | 2009-04-29 |
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Owner name: WUHAN DAYU VALVE CO., LTD. Free format text: FORMER NAME: WUHAN DAYU VALVE MANUFACTURING CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 430056 Hubei city of Wuhan province Wuhan economic and Technological Development Zone Science and Technology Industrial Park Yang Dun Patentee after: Wuhan Dayu Valve Co., Ltd. Address before: 430056 Hubei city of Wuhan province Zhuankou Wuhan economic and Technological Development Zone Science and Technology Industrial Park Wuhan Dun Yang Yu Valve Manufacturing Co. Ltd Patentee before: Wuhan Dayu Valve Manufacturing Co., Ltd. |