CN103244703A - Dust collection type spherical stop valve - Google Patents
Dust collection type spherical stop valve Download PDFInfo
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- CN103244703A CN103244703A CN2013101845369A CN201310184536A CN103244703A CN 103244703 A CN103244703 A CN 103244703A CN 2013101845369 A CN2013101845369 A CN 2013101845369A CN 201310184536 A CN201310184536 A CN 201310184536A CN 103244703 A CN103244703 A CN 103244703A
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- valve
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- flap
- seal ring
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Abstract
The invention provides a dust collection type spherical stop valve. The dust collection type spherical stop valve comprises a valve body, a bonnet, a valve clack, a ball assembly, a valve rod and a hand wheel, wherein the bonnet is connected with the valve body, a valve cavity is formed in the valve body, the valve clack is disposed in the valve cavity, the valve clack is snapped with one end of the valve rod, and the other end of the valve rod extends out of the bonnet to be connected with the hand wheel; the ball assembly is arranged between the valve clack and an outlet; the ball assembly comprises a ball, a positioning sleeve, a ball pad and a seal ring; the ball can float freely, the ball pad is a copper core pad which is positioned between the top of the ball and the valve clack; the positioning sleeve is arranged on the periphery of the ball, the inner circumference of the positioning sleeve is matched with the outer circumference of the ball, and the positioning sleeve is connected with the valve clack; and the seal ring is overlaid on a valve seat in the valve body, and a sealing surface of the seal ring, which corresponds to the ball, is an arc-shaped spherical surface. According to the dust collection type spherical stop valve, the multi-directional ball combination and the arc-shaped sealing surface are adopted, so that the sealing performance is good, the service life is long, and dust-collecting and dirt-removing functions are combined simultaneously.
Description
Technical field
The invention belongs to valve field, be specifically related to the spherical stop valve of a kind of dust-collecting type.
Background technique
Stop valve is a kind of valve of using always, is used for cut-out, adjusting and the throttling of pipeline medium.Existing stop valve mainly is made up of valve body, valve seat, valve rod and flap, and flap is connected an end of valve rod and corresponding with valve seat, and rotary valve rod makes flap do to realize moving along the center line of valve seat, realizes the aperture between flap and the valve seat.The tradition stop valve be sealed into conical surface seal or plane sealing, conical surface seal is the line style sealing, its good pressure-resistant performance in use, but sealing surface rapid wear, working life is short; Though plane sealing is rapid wear not, its not high pressure resistant and easy dirt.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of good seal performance, long service life are provided, have the spherical stop valve of dust-collecting type of dedusting dirt-removing functions simultaneously concurrently.
The present invention is achieved through the following technical solutions:
The spherical stop valve of a kind of dust-collecting type comprises valve body, valve gap, flap, ball core assembly, valve rod and handwheel, and valve gap is connected with valve body, and valve inner is provided with valve pocket, and the two ends, the left and right sides of valve body are provided with import and the outlet that is communicated with valve pocket; Flap is arranged in the valve pocket, and an end of flap and valve rod is fastened and connected mutually, and the other end of valve rod stretches out valve gap and is connected with handwheel; The ball core assembly is arranged between flap and the outlet;
It is characterized in that described ball core assembly comprises ball core, setting sleeve, ball core pad and seal ring; Be provided with the gap between ball core and setting sleeve, ball core pad and the seal ring, the ball core can free floating; Ball core pad is a bronze medal core pad, is arranged between the top and flap of ball core; The outer periphery of ball core is equipped with setting sleeve, and the excircle of setting sleeve inner circumference and ball core is complementary, and setting sleeve links to each other with flap; On the valve seat of seal ring built-up welding in valve body, the seal ring sealing surface corresponding with the ball core is the arc sphere.
The further setting of the present invention is, the spherical stop valve of described dust-collecting type also comprises a snubber, and described snubber is arranged on the below of handwheel, and the prevention valve rod moves down when being used for distance between ball core and arc sphere sealing surface for 1-2mm.
The spherical stop valve of dust-collecting type of the present invention has following beneficial effect:
1, the present invention adopts multi-faceted ball core combination, and the hardness of copper ball core pad makes that less than ball core hardness ball core pivoting friction is little, and greasy property is good, can protect the ball core to be without prejudice; Setting sleeve can be protected the ball core, and the excircle of setting sleeve inner circumference and ball core is complementary simultaneously, makes that the rotation of ball core is more flexible.
2, valve seal adopts the round sealing surface of arc among the present invention, and sealing area is bigger; Adopt floating type ball core design simultaneously, utilize the keying workpiece of valve and ducted pressure to produce the flow Driving force, valve ball core in opening-closing process is rotated promote transposition, thereby improved sealing effect, and the working life of seal ring.Compare with traditional conical surface seal or plane sealing, the present invention can extend to the working life of seal ring 20,000 times～40,000 times by 2,000 times.
3, the present invention has adopted the round sealing surface of arc, and the withstand voltage properties of existing conical surface seal has the durability of plane sealing again, and seals not rapid wear; In sealing because pressing down slip and also the removals such as greasy dirt on the sealing surface can having been possessed the function of scrubbing dedusting of ball core improved the performance of valve.
4, the present invention uses snubber at valve opening and closing element, and valve is carried out spacing control when closing, and when ball core during apart from sealing surface 1-2mm place, utilizes pipeline pressure that sealing surface is cleaned, thereby can reach the purpose of scrubbing dedusting; After cleaning is finished after waiting for 1-2 minute, open the snubber throttle down again.Certainly as need be bursting to throttle down and can directly open snubber and settle throttle down at one go.
Description of drawings
Fig. 1 is the structural drawing of the spherical stop valve of dust-collecting type of the present invention.
Embodiment
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the invention provides the spherical stop valve of a kind of dust-collecting type, comprise valve body 1, valve gap 7, flap 4, ball core assembly, valve rod 5 and handwheel 16, be provided with middle part pad 6 between valve gap 7 and the valve body 1, and be fixed together by middle part bolt 8.Valve body 1 inside is provided with valve pocket 20, and the two ends, the left and right sides of valve body 1 are provided with import 22 and the outlet 21 that is communicated with valve pocket 20; Flap 4 is arranged in the valve pocket 20, and flap 4 is fastened and connected mutually with an end of valve rod 5, and the other end of valve rod 5 stretches out valve gap 7 and is connected with handwheel 16, and handwheel 16 is provided with locking nut 18.The ball core assembly is arranged between flap 4 and the outlet 21.Also be provided with Stem Mut 15, filler 9, filler gland 12 and hold-down grid 13 on the valve rod 5, hold-down grid 13 links together by lateral pin 10, swing bolt 11 and movable joint nut 15 with valve gap 7.
Described ball core assembly comprises ball core 2, setting sleeve 3, ball core pad 19 and seal ring 23; Ball the core 2 and gap of 1-2mm is arranged between the parts on every side, ball core 2 can freely rotate; Ball core pad 19 is a bronze medal core pad, is arranged between the top and flap 4 of ball core 2; The outer periphery of ball core 2 is equipped with setting sleeve 3, and the excircle of setting sleeve 3 inner circumferences and ball core 2 is complementary, and setting sleeve 3 links to each other with flap 4; On the valve seat of seal ring 23 built-up welding in valve body 1, seal ring 23 and ball core 2 corresponding sealing surfaces are the arc sphere.When valve rod 5 moved downward, the gap between ball core 2 and the sealing surface was more and more littler, and ducted pressure can produce the flow Driving force, made ball core 2 rotate freely and promoted transposition.
The spherical stop valve of described dust-collecting type also comprises a snubber 17, and described snubber 17 is arranged on the below of handwheel 16, is used for limiting the displacement of valve rod 5, and making the distance between ball core 2 and the arc sphere sealing surface is 1-2mm, and valve rod 5 can't continue to move down.Like this when throttle down, when arriving the position that snubbers 17 limit, valve rod 5 just can't continue to close, and also have the distance of 1-2mm between ball core 2 and the arc sphere sealing surface, can utilize pipeline pressure that sealing surface is cleaned this moment, thereby reach the purpose of scrubbing dedusting.Snubber 17 can be common limiting stopper, and the present invention does not limit the structure of snubber 17.
The above is preferred embodiment of the present invention, and all equivalent variations of doing according to the present patent application claim all should belong to protection scope of the present invention.
Claims (2)
1. the spherical stop valve of a dust-collecting type, comprise valve body (1), valve gap (7), flap (4), ball core assembly, valve rod (5) and handwheel (16), valve gap (7) is connected with valve body (1), valve body (1) inside is provided with valve pocket (20), and the two ends, the left and right sides of valve body (1) are provided with import (22) and the outlet (21) that is communicated with valve pocket (20); Flap (4) is arranged in the valve pocket (20), and flap (4) is fastened and connected mutually with an end of valve rod (5), and the other end of valve rod (5) stretches out valve gap (7) and is connected with handwheel (16); The ball core assembly is arranged between flap (4) and the outlet (21);
It is characterized in that described ball core assembly comprises ball core (2), setting sleeve (3), ball core pad (19) and seal ring (23); Be provided with the gap between ball core (2) and setting sleeve (3), ball core pad (19) and the seal ring (23), ball core (2) can free floating; Ball core pad (19) is a bronze medal core pad, is arranged between the top and flap (4) of ball core (2); The outer periphery of ball core (2) is equipped with setting sleeve (3), and the excircle of setting sleeve (3) inner circumference and ball core (2) is complementary, and setting sleeve (3) links to each other with flap (4); On the valve seat of seal ring (23) built-up welding in valve body (1), seal ring (23) sealing surface corresponding with ball core (2) is the arc sphere.
2. the spherical stop valve of dust-collecting type according to claim 1, it is characterized in that, the spherical stop valve of described dust-collecting type also comprises a snubber (17), described snubber (17) is arranged on the below of handwheel (16), and prevention valve rod (5) moves down when being used for distance between ball core (2) and arc sphere sealing surface for 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101845369A CN103244703A (en) | 2013-05-16 | 2013-05-16 | Dust collection type spherical stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101845369A CN103244703A (en) | 2013-05-16 | 2013-05-16 | Dust collection type spherical stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244703A true CN103244703A (en) | 2013-08-14 |
Family
ID=48924440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101845369A Pending CN103244703A (en) | 2013-05-16 | 2013-05-16 | Dust collection type spherical stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244703A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565403A (en) * | 2014-12-13 | 2015-04-29 | 余姚市庆达机械有限公司 | Dust removal valve |
| CN105546125A (en) * | 2016-02-29 | 2016-05-04 | 应建忠 | Floating spherical crown type stop valve |
| CN105697800A (en) * | 2016-02-29 | 2016-06-22 | 应建忠 | Floating spherical cap type adjusting stop valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209743Y (en) * | 1994-08-24 | 1995-10-11 | 李扬 | Bidirectional sealing rotary core valve |
| CN2212688Y (en) * | 1995-03-31 | 1995-11-15 | 北京科维仪表阀门厂 | Steel ball flap type high-pressure high-temp stop valve |
| DE102008020975A1 (en) * | 2008-04-25 | 2009-11-05 | Viega Gmbh & Co. Kg | Multi-path stop valve i.e. ball valve, for use in installation area for locking pipeline, has housing defining flow path, and operating device fastened to housing in rotatable manner and provided with rotation absorber |
| CN201416653Y (en) * | 2009-07-09 | 2010-03-03 | 成都凯天电子股份有限公司 | Bellows ball core stop valve |
| CN203248765U (en) * | 2013-05-16 | 2013-10-23 | 中亚阀门有限公司 | Dedusting type globe stop valve |
-
2013
- 2013-05-16 CN CN2013101845369A patent/CN103244703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209743Y (en) * | 1994-08-24 | 1995-10-11 | 李扬 | Bidirectional sealing rotary core valve |
| CN2212688Y (en) * | 1995-03-31 | 1995-11-15 | 北京科维仪表阀门厂 | Steel ball flap type high-pressure high-temp stop valve |
| DE102008020975A1 (en) * | 2008-04-25 | 2009-11-05 | Viega Gmbh & Co. Kg | Multi-path stop valve i.e. ball valve, for use in installation area for locking pipeline, has housing defining flow path, and operating device fastened to housing in rotatable manner and provided with rotation absorber |
| CN201416653Y (en) * | 2009-07-09 | 2010-03-03 | 成都凯天电子股份有限公司 | Bellows ball core stop valve |
| CN203248765U (en) * | 2013-05-16 | 2013-10-23 | 中亚阀门有限公司 | Dedusting type globe stop valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565403A (en) * | 2014-12-13 | 2015-04-29 | 余姚市庆达机械有限公司 | Dust removal valve |
| CN105546125A (en) * | 2016-02-29 | 2016-05-04 | 应建忠 | Floating spherical crown type stop valve |
| CN105697800A (en) * | 2016-02-29 | 2016-06-22 | 应建忠 | Floating spherical cap type adjusting stop valve |
| CN105697800B (en) * | 2016-02-29 | 2017-11-10 | 应建忠 | Floating spherical cap type adjustment type stop valve |
| CN105546125B (en) * | 2016-02-29 | 2017-11-10 | 应建忠 | Floating spherical cap type stop valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |