CN203248765U - Dedusting type globe stop valve - Google Patents
Dedusting type globe stop valve Download PDFInfo
- Publication number
- CN203248765U CN203248765U CN 201320274571 CN201320274571U CN203248765U CN 203248765 U CN203248765 U CN 203248765U CN 201320274571 CN201320274571 CN 201320274571 CN 201320274571 U CN201320274571 U CN 201320274571U CN 203248765 U CN203248765 U CN 203248765U
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- Prior art keywords
- valve
- ball core
- globe
- core
- flap
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- Expired - Fee Related
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- Taps Or Cocks (AREA)
Abstract
The utility model provides a dedusting type globe stop valve which comprises a valve body, a valve cover, a valve clack, a globe core assembly, a valve rod and a hand wheel. The valve cover is connected with the valve body, a valve cavity is formed in the valve body, the valve clack is arranged in the valve cavity, the valve clack is connected with one end of the valve rod in a fastening mode, and the other end of the valve rod stretches out of the valve cover and is connected with the hand wheel. The globe core assembly is arranged between the valve clack and an outlet and comprises a globe core, a locating sleeve, a globe core cushion and a sealing ring, the globe core can float freely, and the globe core cushion is a cupper core cushion and is arranged between the top of the globe core and the valve clack. The locating sleeve is arranged on the periphery of the globe core, the inner circumference of the locating sleeve is matched with the outer circumference of the globe core, and the locating sleeve is connected with the valve clack. The sealing ring is arranged on a valve seat in the valve body in a build up welding mode, and the sealing face, corresponding to the globe core, of the sealing ring is an arc spherical surface. According to the dedusting type globe stop valve, a multidirectional globe core assembly is adopted and the arc sealing face is adopted, sealing performance is good, service life is long, and the dedusting type globe stop valve has the functions of dedusting and decontamination.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of dust-collecting type ball check valve.
Background technique
Stop valve is a kind of valve of commonly using, is used for cut-out, adjusting and the throttling of pipeline medium.Existing stop valve mainly is comprised of valve body, valve seat, valve rod and flap, and flap is connected to 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; Although plane sealing is rapid wear not, its not high pressure resistant and easy dirt.
The model utility content
The utility model provides a kind of good seal performance, long service life for above-mentioned the deficiencies in the prior art, has simultaneously the dust-collecting type ball check valve of dedusting dirt-removing functions concurrently.
The utility model is achieved by the following technical solution:
A kind of dust-collecting type ball check valve 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 periphery of ball core is provided 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.
Further setting of the present utility model is that described dust-collecting type ball check valve also comprises a snubber, and described snubber is arranged on the below of handwheel, stops valve rod to move down when being 1-2mm for the distance between ball core and arc sphere sealing surface.
Dust-collecting type ball check valve described in the utility model has following beneficial effect:
1, the utility model adopts multi-faceted ball core combination, and the hardness of copper ball core pad is less than ball core hardness, so that ball core pivoting friction is little, 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, so that the rotation of ball core is more flexible.
2, valve seal adopts the round sealing surface of arc in the utility model, and sealing area is larger; Adopt simultaneously floating type ball core design, 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 utility model can extend to the working life of seal ring 20,000 times～40,000 times by 2,000 times.
3, the utility model has adopted the round sealing surface of arc, and the withstand voltage properties of existing conical surface seal has again the durability of plane sealing, 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 utility model 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 again the snubber throttle down.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 dust-collecting type ball check valve described in the utility model.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides a kind of dust-collecting type ball check valve, comprises valve body 1, valve gap 7, flap 4, ball core assembly, valve rod 5 and handwheel 16, is provided with middle part pad 6 between valve gap 7 and the valve body 1, and is 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, is provided with locking nut 18 on the handwheel 16.The ball core assembly is arranged between flap 4 and the outlet 21.Also be provided with Stem Mut 15, filler 9, filler pressing sleeve 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 periphery of ball core 2 is provided 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 less, and ducted pressure can produce the flow Driving force, promoted transposition so that ball core 2 rotates freely.
Described dust-collecting type ball check valve 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 utility model does not limit the structure of snubber 17.
The above is preferred embodiment of the present utility model, and all equivalent variations of doing according to the utility model claim all should belong to protection domain of the present utility model.
Claims (2)
1. dust-collecting type ball check valve, 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 periphery of ball core (2) is provided 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. dust-collecting type ball check valve according to claim 1, it is characterized in that, described dust-collecting type ball check valve also comprises a snubber (17), described snubber (17) is arranged on the below of handwheel (16), stops valve rod (5) to move down when being 1-2mm for the distance between ball core (2) and arc sphere sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274571 CN203248765U (en) | 2013-05-16 | 2013-05-16 | Dedusting type globe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274571 CN203248765U (en) | 2013-05-16 | 2013-05-16 | Dedusting type globe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248765U true CN203248765U (en) | 2013-10-23 |
Family
ID=49375204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320274571 Expired - Fee Related CN203248765U (en) | 2013-05-16 | 2013-05-16 | Dedusting type globe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244703A (en) * | 2013-05-16 | 2013-08-14 | 中亚阀门有限公司 | Dust collection type spherical stop valve |
-
2013
- 2013-05-16 CN CN 201320274571 patent/CN203248765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244703A (en) * | 2013-05-16 | 2013-08-14 | 中亚阀门有限公司 | Dust collection type spherical stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20160516 |