CN101629640A - Pilot-operated type hard seal fixing ball valve - Google Patents
Pilot-operated type hard seal fixing ball valve Download PDFInfo
- Publication number
- CN101629640A CN101629640A CN200910184441A CN200910184441A CN101629640A CN 101629640 A CN101629640 A CN 101629640A CN 200910184441 A CN200910184441 A CN 200910184441A CN 200910184441 A CN200910184441 A CN 200910184441A CN 101629640 A CN101629640 A CN 101629640A
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- valve
- bypass tube
- gland
- spheroid
- hard seal
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Abstract
The invention discloses a pilot-operated type hard seal fixing ball valve which comprises a valve body, a ball body, a valve seat, a valve cover, a valve rod, a press cover, a filling press cover and a supporting shaft, wherein the ball body is arranged in the valve body; the valve rod passes through the upper part of the valve body and is connected with the ball body, and the valve rod is externally sleeved with the press cover and the filling press cover which are vertically arranged; the valve seat is arranged between the valve cover and the ball body; the supporting shaft passes through the lower part of the valve body and is connected with the ball body; two valve cover sealing rings and a valve seat spring are arranged between the valve cover and the valve seat; the valve cover, the valve seat and two valve seat sealing rings form a pressure difference cavity; the left side of the valve cover is provided with two left by-pass pipes, the right side is provided with two right by-pass pipes, and the left by-pass pipes and the right by-pass pipes are connected by control valves; the valve rod is also sleeved with a three-way handle head which is communicated with the control valves; and a handle steel pipe is arranged on the valve rod. The invention realizes that the valve seat can be automatically separated from a ball surface when the valve is turned on so as to greatly prolong the service life of the hard seal fixing ball valve and greatly reduce the turn-on torque of the valve.
Description
Technical field
The present invention relates to a kind of valve, especially relate to a kind of sealing and driving of hard seal fixing ball valve.
Background technique
We know, hard seal ball valve is widely used in every field such as oil, chemical industry, iron and steel, metallurgy and electric power, existing hard seal fixing ball valve, mainly comprise valve body, be fixed on the valve gap on the valve body, be arranged on the spheroid in the valve body, be arranged on the valve seat between spheroid and the valve gap, and be arranged on the spring in the valve gap.Valve with respect to other soft material sealings, that hard seal fixing ball valve has is high temperature resistant, the advantage of high pressure, but, because the specific pressure that hard seal fixing ball valve requires causes valve switch moment excessive, the surface of contact that can occur spheroid and valve seat in use sharply weares and teares and problem such as pulls, thereby cause the leakage of valve, shortened the working life of valve.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of long service life, pilot-operated type hard seal fixing ball valve that switching torque is little.
A kind of pilot-operated type hard seal fixing ball valve, comprise valve body, spheroid, valve seat, valve gap, valve rod, gland, Gland, supporting axle, wherein spheroid is arranged on valve inner, the top that valve rod passes valve body is connected with spheroid, valve rod is with gland and Gland outward, gland is positioned on the Gland, be provided with left valve seat between left side valve gap and the spheroid, be provided with valve seat between valve gap and the spheroid, the bottom that back shaft passes valve body is connected with spheroid, it is characterized in that: be provided with valve bonnet seal ring one between valve gap and the valve seat, valve base sealing ring two and seating spring, wherein, valve gap, valve seat, valve base sealing ring one and valve base sealing ring two form a pressure reduction chamber, be provided with left bypass tube one and left bypass tube two in the left side of valve gap, the right side of valve gap is provided with right bypass tube one and right bypass tube two, left side bypass tube one is connected by being positioned at its middle control valve with right bypass tube one, in addition, an also sheathed threeway handle head on valve rod, itself and control valve are connected, and the handle steel pipe that is communicated with the threeway handle head then is vertically set on the valve rod by bolt.
Above-mentioned left bypass tube one and right bypass tube one pass the left and right sides of valve gap respectively and are communicated with the working area of separately seating spring, and second described left bypass tube two and right bypass tube are located at respectively between separately the valve base sealing ring one and valve base sealing ring two.
Between above-mentioned control valve and gland, also can be provided with support.
The invention has the beneficial effects as follows: the by-pass governing device of the present invention by peripheral hardware comes controlling plumbing fixtures from pressure or the outside potential source pressure reduction in valve seat location, thereby realize the automatic and sphere disengagement of valve valve seat when opening, thereby increased the working life of hard seal fixing ball valve greatly, and greatly reduced the unlatching moment of torsion of valve.The working life of above-mentioned pilot-operated type hard seal fixing ball valve be in the market hard seal fixing ball valve with 5～6 times of operating mode following working life, and open moment of torsion be in the market hard seal fixing ball valve 1/5th to 1/10th between.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Main reference character implication among the figure:
1, valve body 3, spheroid 4, valve seat 5, valve gap
6, valve rod 7, gland 8, Gland 9, supporting axle
10, valve bonnet seal ring 1, valve bonnet seal ring 2 12, seating spring
13, left bypass tube 1, left bypass tube 2 15, right bypass tube one
16, right bypass tube 2 17, control valve 18, threeway handle head
19, handle steel pipe 20, support
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Fig. 1 is the structural representation of one embodiment of the invention.
As shown in Figure 1: a kind of pilot-operated type hard seal fixing ball valve, comprise valve body 1, spheroid 3, valve seat 4, valve gap 5, valve rod 6, gland 7, Gland 8, supporting axle 9, wherein spheroid 3 is arranged on the inside of valve body 1, the top that valve rod 6 passes valve body 1 is connected with spheroid 3, valve rod 6 outer gland 7 and the Glands 8 of being with, gland 7 is positioned on the Gland 8, be provided with valve seat 4 between valve gap 5 and the spheroid 3, the bottom that back shaft 9 passes valve body 1 is connected with spheroid 3, be provided with valve bonnet seal ring 1 between valve gap 5 and the valve seat 4, valve base sealing ring 2 11 and seating spring 12, wherein, valve gap 5, valve seat 4, valve base sealing ring 1 and valve base sealing ring 2 11 form a pressure reduction chamber, be provided with left bypass tube 1 and left bypass tube 2 14 in the left side of valve gap 5, the right side of valve gap 5 is provided with right bypass tube 1 and right bypass tube 2 16, left side bypass tube 1 is connected by being positioned at its middle control valve 17 with right bypass tube 1, a left side bypass tube 1 and right bypass tube 1 pass the left and right sides of valve gap 5 respectively and are communicated with the working area of separately seating spring 12, and left bypass tube 2 14 and right bypass tube 2 16 then are located at respectively between separately the valve base sealing ring 1 and valve base sealing ring 2 11.In addition, an also sheathed threeway handle head 18 on valve rod 6, itself and control valve 17 are connected, and the handle steel pipe 19 that is communicated with threeway handle head 18 then is vertically set on the valve rod 6 by bolt, also is provided with support 20 between above-mentioned control valve 17 and gland 7.
Valve of the present invention is under closing state, flowing medium is come in from the passage of the valve gap 5 on right side, this moment the right side the passage of valve gap 5 in pressure be higher than pressure in the passage of valve gap 5 in cavity that valve body 1 forms and left side, move handle steel pipe 19 this moment, by threeway handle head 18 position signal is passed to control valve 17, control valve 17 is communicated with left bypass tube 2 14, right bypass tube 1 and right bypass tube 2 16, flowing medium enters under action of pressure by valve gap 5, valve seat 4, the pressure reduction chamber that valve base sealing ring 1 and valve base sealing ring 2 11 form, fluid medium pressure overcomes the elastic force of seating spring 12 and pushes valve seat 4 open, valve seat 4 and spheroid 3 are thrown off, and when valve wide open, control valve 17 cuts off left bypass tube 2 14, right bypass tube 1 and right bypass tube 2 16, make valve seat 4 and spheroid 3 keep disengaged condition, when wanting throttle down, move handle steel pipe 19, in the closed procedure of the pass of valve, valve seat 4 and the spheroid 3 of this moment still keep disengaged condition, but the gap of throwing off is very little, this makes valve be higher than in the valve cavity and the pressure of outlet end at the pressure of entrance point, and when the valve contract fully, 18 of threeway handle heads pass to control valve 17 to position signal, control valve 17 is communicated with left bypass tube 1, left side bypass tube 2 14 and right bypass tube 2 16, in the passage of the valve gap 5 on the left of the flowing medium in the pressure reduction chamber enters under the pressure of seating spring 12, this moment, valve seat 4 contacted with spheroid 3, valve seal has been finished the process of opening and closing of valve.
The present invention greatly reduces the unlatching moment of torsion of valve, has increased the working life of hard seal fixing ball valve.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technological scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (4)
1, a kind of pilot-operated type hard seal fixing ball valve, comprise valve body (1), spheroid (3), valve seat (4), valve gap (5), valve rod (6), gland (7), Gland (8), supporting axle (9), wherein spheroid (3) is arranged on valve body (1) inside, valve rod (6) passes valve body (1) top and is connected with spheroid (3), outer gland (7) and the Gland (8) of being with of valve rod (6), gland (7) is positioned on the Gland (8), be provided with valve seat (4) between valve gap (5) and the spheroid (3), the bottom that back shaft (9) passes valve body (1) is connected with spheroid (3), it is characterized in that: be provided with valve bonnet seal ring one (10) between valve gap (5) and the valve seat (4), valve base sealing ring two (11) and seating spring (12), wherein, valve gap (5), valve seat (4), valve base sealing ring one (10) and valve base sealing ring two (11) form a pressure reduction chamber, be provided with left bypass tube one (13) and left bypass tube two (14) in the left side of valve gap (5), the right side of valve gap (5) is provided with right bypass tube one (15) and right bypass tube two (16), left side bypass tube one (13) is connected by being positioned at its middle control valve (17) with right bypass tube one (15), in addition, go up an also sheathed threeway handle head (18) at valve rod (6), itself and control valve (17) are connected, and the handle steel pipe (19) that is communicated with threeway handle head (18) then is vertically set on the valve rod (6) by bolt.
2, pilot-operated type hard seal fixing ball valve according to claim 1 is characterized in that described left bypass tube one (13) and right bypass tube one (15) pass the left and right sides of valve gap (5) respectively and be communicated with the working area of separately seating spring (12).
3, pilot-operated type hard seal fixing ball valve according to claim 1 is characterized in that described left bypass tube two (14) and right bypass tube two (16) are located at respectively between separately the valve base sealing ring one (10) and valve base sealing ring two (11).
4, pilot-operated type hard seal fixing ball valve according to claim 1 is characterized in that being provided with support (20) between above-mentioned control valve (17) and gland (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101844410A CN101629640B (en) | 2009-08-12 | 2009-08-12 | Pilot-operated type hard seal fixing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101844410A CN101629640B (en) | 2009-08-12 | 2009-08-12 | Pilot-operated type hard seal fixing ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101629640A true CN101629640A (en) | 2010-01-20 |
| CN101629640B CN101629640B (en) | 2012-05-30 |
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ID=41574862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101844410A Active CN101629640B (en) | 2009-08-12 | 2009-08-12 | Pilot-operated type hard seal fixing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101629640B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192349A (en) * | 2010-03-19 | 2011-09-21 | 江苏省东源核电阀门工程技术研究中心有限公司 | High pressure ball valve |
| CN102401146A (en) * | 2010-09-14 | 2012-04-04 | 上海伟伦阀门有限公司 | Large-caliber small-torque ball valve |
| CN102654203A (en) * | 2012-05-08 | 2012-09-05 | 宁波长壁流体动力科技有限公司 | Spherical stop valve for underground combined mining working surface of coal mine |
| CN102878316A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Ball valve reliable in sealing and low in opening-closing torque |
| CN102878317A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Pneumatic ball valve reliable in sealing and low in opening-closing torque |
| CN102927309A (en) * | 2012-10-16 | 2013-02-13 | 丰隆液压有限公司 | Spherical shut-off valve |
| CN104791511A (en) * | 2014-01-19 | 2015-07-22 | 盐城圣科球阀有限公司 | Novel external control sealing ball valve |
| CN107202175A (en) * | 2017-07-28 | 2017-09-26 | 泉州市沪航阀门制造有限公司 | Horizontal large-diameter semi-ball valve |
| CN107842627A (en) * | 2017-11-02 | 2018-03-27 | 朱晓丰 | A kind of hard seal ball valve |
| CN111089183A (en) * | 2019-12-20 | 2020-05-01 | 浙江中德自控科技股份有限公司 | Pneumatic sealing combined control valve |
| CN111577929A (en) * | 2020-04-30 | 2020-08-25 | 方正阀门集团股份有限公司 | Ball valve with DBB and DIB functions exchanged |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5467796A (en) * | 1995-03-24 | 1995-11-21 | Hydronic Components, Inc. | Ball valve with a strainer and integrated means for flushing the strainer |
| CN2606827Y (en) * | 2003-03-24 | 2004-03-17 | 孟永康 | High temperature high pressure compensation type sealing ball valve |
| CN1654866A (en) * | 2004-02-13 | 2005-08-17 | 金庆明 | Valve |
| CN201496609U (en) * | 2009-08-12 | 2010-06-02 | 昆山维萨阀门有限公司 | Pilot-operated type hard-seal fixed ball valve |
-
2009
- 2009-08-12 CN CN2009101844410A patent/CN101629640B/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192349A (en) * | 2010-03-19 | 2011-09-21 | 江苏省东源核电阀门工程技术研究中心有限公司 | High pressure ball valve |
| CN102401146A (en) * | 2010-09-14 | 2012-04-04 | 上海伟伦阀门有限公司 | Large-caliber small-torque ball valve |
| CN102654203A (en) * | 2012-05-08 | 2012-09-05 | 宁波长壁流体动力科技有限公司 | Spherical stop valve for underground combined mining working surface of coal mine |
| CN102654203B (en) * | 2012-05-08 | 2014-05-07 | 宁波长壁流体动力科技有限公司 | Spherical stop valve for underground combined mining working surface of coal mine |
| CN102927309A (en) * | 2012-10-16 | 2013-02-13 | 丰隆液压有限公司 | Spherical shut-off valve |
| CN102878316B (en) * | 2012-10-23 | 2014-03-12 | 浙江超达阀门股份有限公司 | Ball valve reliable in sealing and low in opening-closing torque |
| CN102878317A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Pneumatic ball valve reliable in sealing and low in opening-closing torque |
| CN102878316A (en) * | 2012-10-23 | 2013-01-16 | 浙江超达阀门股份有限公司 | Ball valve reliable in sealing and low in opening-closing torque |
| CN104791511A (en) * | 2014-01-19 | 2015-07-22 | 盐城圣科球阀有限公司 | Novel external control sealing ball valve |
| CN107202175A (en) * | 2017-07-28 | 2017-09-26 | 泉州市沪航阀门制造有限公司 | Horizontal large-diameter semi-ball valve |
| CN107842627A (en) * | 2017-11-02 | 2018-03-27 | 朱晓丰 | A kind of hard seal ball valve |
| CN107842627B (en) * | 2017-11-02 | 2024-03-12 | 建湖县裕祥机械制造有限公司 | Hard seal ball valve |
| CN111089183A (en) * | 2019-12-20 | 2020-05-01 | 浙江中德自控科技股份有限公司 | Pneumatic sealing combined control valve |
| CN111577929A (en) * | 2020-04-30 | 2020-08-25 | 方正阀门集团股份有限公司 | Ball valve with DBB and DIB functions exchanged |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101629640B (en) | 2012-05-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The use of 215324 Kunshan Road, Jiangsu province Jinxi town Jin No. 18 Patentee after: Kunshan Weisa Valve Co., Ltd. Address before: The use of 215324 Kunshan Road, Jiangsu province Jinxi town Jin No. 18 Patentee before: Kunshan Weisa Valve Co., Ltd. |