CN208565625U - A kind of fireproof antistatic Fixed ball valve - Google Patents
A kind of fireproof antistatic Fixed ball valve Download PDFInfo
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- CN208565625U CN208565625U CN201820906808.XU CN201820906808U CN208565625U CN 208565625 U CN208565625 U CN 208565625U CN 201820906808 U CN201820906808 U CN 201820906808U CN 208565625 U CN208565625 U CN 208565625U
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- valve
- sphere
- valve seat
- seat support
- support ring
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- 239000012530 fluid Substances 0.000 claims abstract description 8
- 210000004907 gland Anatomy 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
A kind of fireproof antistatic Fixed ball valve, including valve body, valve deck, valve rod, sphere, valve seat support ring, worm gearing and bracket, valve body is fixedly connected with valve deck, valve body forms fluid channel cavity after connecting with valve deck, sphere is arranged in fluid channel cavity, valve seat support ring and sphere soft seal cooperate, helical spring is arranged in valve seat support ring, helical spring is against in annular groove wall, valve seat insert is arranged in the inner face that valve seat support ring is contacted with sphere, fireproof antistatic ring is arranged in the inner face bottom that valve seat support ring is contacted with sphere, sandwiched butterfly spring between fireproof antistatic ring and valve seat support ring.The utility model fireproof antistatic ring is contacted with sphere formation, electrostatic caused by rubbing between sphere and soft sealing valve seat bracing ring and valve seat insert is oriented to valve body, the hidden danger of electrostatic fire can preferably be eliminated, once on fire burn valve seat insert, media flow pushes valve seat support ring to be in close contact fireproof antistatic ring and sphere, effectively blocking fire source.
Description
Technical field
The utility model relates to Fixed ball valve more particularly to a kind of Fixed ball valves with fireproof antistatic function.
Background technique
One of widely used valve of ball valve, since with compact-sized, sealed reliable, structure is simple, maintenance side
Just, the advantages that sealing surface and spherical surface are often in closed state, are not easy by medium erosion, easily operated and maintenance, is applicable not only to
The general works medium such as water, solvent, acid and natural gas, but also it is suitable for the severe medium of operating condition, therefore every profession and trade obtains
To being widely applied, current ball valve, sealing performance needed for can satisfy production substantially in general situation, but shock heating or
In the case that fire occurs, since the teflin ring in ball valve is burned out, so that spherical valve core can not be close with valve body
Envelope, occurs so as to cause compared with gross leak, if the medium leaked is inflammable or corrosive liquids, not only encourages the intensity of a fire, and
It will lead to other equipment damage, result in significant economic losses and problem of environmental pollution, and during production and application, by
In valve rod and sphere, valve rod and valve body, sphere and valve base chamber can generate friction, so as to cause the generation of electrostatic, if electrostatic is not
It eliminates in time, can also cause the generation of the accident of the risks such as fire.In short, firebreak device cannot when present ball valve has design
Meet fire protection requirement, machining accuracy cannot fully meet fire protection requirement, or former firebreak device lacking without anti-static function
It falls into.
Summary of the invention
The utility model is to solve the above problems, provide the fire prevention that a kind of flameproof effect is good, to electrostatic elicitation effect
Antistatic Fixed ball valve.
Technical solution adopted in the utility model:
A kind of fireproof antistatic Fixed ball valve, including valve body, valve deck, valve rod, sphere, valve seat support ring, worm and gear
Transmission device and bracket, valve body are fixedly connected with valve deck by bolts and nuts, and valve body forms fluid channel after connecting with valve deck
Cavity, sphere are arranged in fluid channel cavity, and valve body and valve deck offer installation valve seat in the end face contacted with sphere and support
The annular groove of circle, valve seat support ring and sphere soft seal cooperate, and valve seat support ring is contacted with the annular groove on valve body and valve deck
Outer end face is provided with external annular groove, and helical spring is arranged in external annular groove, and helical spring is against in annular groove wall, valve seat support
It encloses in the middle part of the inner face contacted with sphere and opens up inner ring connected in star, valve seat insert, valve seat support ring are set in inner ring connected in star
The inner face bottom contacted with sphere offers bottom annular slot, and fireproof antistatic ring, fireproof antistatic ring is arranged in bottom annular slot
The sandwiched butterfly spring between valve seat support ring, fireproof antistatic ring are contacted with sphere, and body base is close by screw fixed bottom cover
Envelope, valve rod are divided into upper valve rod and lower valve rod, and lower valve rod bottom is against on bottom cover, and properties of journal bearing lubricated, properties of journal bearing lubricated is arranged in top
It is set in the circular groove that sphere bottom opens up, upper valve rod bottom passes through at the top of valve body insertion sphere and connects by the way that key and sphere are fixed
It connects, the top of upper valve rod is connect with worm gearing, and the bottom of worm gearing is connected by bolt and bracket
It connects, the lower part of bracket is bolted on valve body.
The valve seat support ring material is polytetrafluoroethylene material.
Two layers of O-ring seal is arranged in the contact surface of the valve seat support ring and valve body and valve deck.
Enter body top position on the upper valve rod and upper sliding bearing is set, gland is set on upper sliding bearing, is pressed
Gland is arranged in gap filling filler between the side's of covering upper valve rod and body top, filler top.
Lower adjustment gasket is set between the properties of journal bearing lubricated bottom and lower valve rod contact surface, and upper sliding bearing connects with gland
Gasket is adjusted in setting between contacting surface.
The utility model has the beneficial effects that the utility model under the action of helical spring and butterfly spring, is prevented quiet
Electric ring and sphere formed it is micro- contact, rub between sphere and soft sealing valve seat bracing ring and valve seat insert caused by electrostatic guiding
Valve body can preferably eliminate the hidden danger of electrostatic fire, once on fire burn valve seat insert, media flow pushes valve seat support ring
It is in close contact fireproof antistatic ring and sphere, sealed pressure is formed and effectively blocks fire source.
Detailed description of the invention
Fig. 1 is the valve-closed state structural schematic diagram of the utility model.
Fig. 2 is partial structural diagram at the utility model fireproof antistatic part A.
Wherein: 1- bottom cover；2- lower valve rod；Gasket is adjusted under 3-；4- properties of journal bearing lubricated；5-O type sealing ring；6- spiral bullet
Spring；7- valve seat support ring；8- valve seat insert；9- butterfly spring；10- fireproof antistatic ring；11- sphere；12- valve body；13-
Key；14- upper valve rod；The upper sliding bearing of 15-；Gasket is adjusted on 16-；17- gland；18- filler；19- gland；20- bracket；
21- worm gearing；22- valve deck；23- nut；24- bolt；25- annular groove；26- external annular groove；27- annular
Groove；28- bottom annular slot.
Specific embodiment
A kind of fireproof antistatic Fixed ball valve, including valve body 12, valve deck 22, valve rod, sphere 11, valve seat support ring 7, snail
Screw gearing 21 and bracket 20, valve body 12 are fixedly connected by bolt 24 with nut 23 with valve deck 22, valve body 12 and valve
Lid 22 forms fluid channel cavity after connecting, sphere 11 is arranged in fluid channel cavity, valve body 12 and valve deck 22 with sphere
The end face of 11 contacts offers the annular groove 25 of installation valve seat support ring 7, and valve seat support ring 7 and 11 soft seal of sphere cooperate, valve
The outer end face that seat supports circle 7 is contacted with the annular groove 25 on valve body 12 or valve deck 22 is provided with external annular groove 26, external annular groove
Helical spring 6 is set in 26, and helical spring 6 is against on 25 wall of annular groove, in the inner face that valve seat support ring 7 is contacted with sphere 11
Portion opens up inner ring connected in star 27, valve seat insert 8 is arranged in inner ring connected in star 27, valve seat support ring 7 contacts interior with sphere 11
End bottom offers bottom annular slot 28, and fireproof antistatic ring 10, fireproof antistatic ring 10 and valve seat is arranged in bottom annular slot 28
7 sandwiched butterfly springs 9 of bracing ring, fireproof antistatic ring 10 are contacted with sphere 11, and 12 bottom of valve body passes through screw fixed bottom cover 1
Sealing, valve rod are divided into upper valve rod 14 and lower valve rod 2, and 2 bottom of lower valve rod is against on bottom cover 1, and properties of journal bearing lubricated 4 is arranged in top, under
Sliding bearing 4 is set in the circular groove that 11 bottom of sphere opens up, and 14 bottom of upper valve rod passes through valve body 12 and is embedded in 11 top of sphere simultaneously
It is fixedly connected by key 13 with sphere 11, the top of upper valve rod 14 is connect with worm gearing 21, Worm Wheel System
The bottom of device 21 is connect by bolt with bracket 20, and the lower part of bracket 20 is bolted on valve body 12.
7 material of valve seat support ring is polytetrafluoroethylene material.
Two layers of O-ring seal 5 is arranged in the contact surface of the valve seat support ring 7 and valve body 12 and valve deck 22.
Enter 12 top position of valve body on the upper valve rod 14 and upper sliding bearing 15 is set, is arranged on upper sliding bearing 15
Filler pressure is arranged above filler 18 in gland 17, the gap filling filler 18 between 17 top upper valve rod 14 of gland and the top of valve body 12
Lid 19.
Be arranged between 2 contact surface of 4 bottom of properties of journal bearing lubricated and lower valve rod it is lower adjust gasket 3, upper sliding bearing 15 with
Gasket 16 is adjusted between 17 contact surface of gland in setting.
In application, the closure or openness course of work, friction generates electrostatic, butterfly spring 9 between sphere 11 and valve seat insert 8
Make fireproof antistatic ring 10 with sphere 11 is micro- contacts, certain micro-pressure is generated, by electrostatic successively by fireproof antistatic ring 10, butterfly
Shape spring 9 and valve seat support ring 7 are oriented on valve body 12 or valve deck 22, the hidden danger of electrostatic fire are preferably eliminated, when upstream is in
When state of catching fire, in the case that valve seat insert 8 is burned out, valve is closed, in the collective effect of pressure medium and helical spring 6
Under, it pushes valve seat support ring 7 to make to form seal-off pressure between fireproof antistatic ring 10 and sphere 11, can more effectively block fire source.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (5)
1. a kind of fireproof antistatic Fixed ball valve, which is characterized in that including valve body (12), valve deck (22), valve rod, sphere
(11), valve seat support ring (7), worm gearing (21) and bracket (20), valve body (12) and valve deck (22) pass through bolt
(24) it is fixedly connected with nut (23), valve body (12) forms fluid channel cavity, sphere (11) setting after connecting with valve deck (22)
In fluid channel cavity, valve body (12) and valve deck (22) offer installation valve seat support ring in the end face contacted with sphere (11)
(7) annular groove (25), valve seat support ring (7) and sphere (11) soft seal cooperate, valve seat support ring (7) and valve body (12) or valve
The outer end face of annular groove (25) contact on lid (22) is provided with external annular groove (26), and spiral bullet is arranged in external annular groove (26)
Spring (6), helical spring (6) are against on annular groove (25) wall, are opened in the middle part of the inner face that valve seat support ring (7) is contacted with sphere (11)
If inner ring connected in star (27), valve seat insert (8) are set in inner ring connected in star (27), valve seat support ring (7) connects with sphere (11)
The inner face bottom of touching offers bottom annular slot (28), and fireproof antistatic ring (10) are arranged in bottom annular slot (28), prevent quiet
Sandwiched butterfly spring (9) between electric ring (10) and valve seat support ring (7), fireproof antistatic ring (10) are contacted with sphere (11), valve body
(12) bottom is sealed by screw fixed bottom cover (1), and valve rod is divided into upper valve rod (14) and lower valve rod (2), and lower valve rod (2) bottom is supported
On bottom cover (1), properties of journal bearing lubricated (4) are set at the top of lower valve rod (2), properties of journal bearing lubricated (4) is set in sphere (11) bottom and opens
If circular groove in, upper valve rod (14) bottom passes through at the top of valve body (12) insertion sphere (11) and solid by key (13) and sphere (11)
Fixed connection, the top of upper valve rod (14) are connect with worm gearing (21), the bottom of worm gearing (21)
It is connect by bolt with bracket (20), the lower part of bracket (20) is bolted on valve body (12).
2. fireproof antistatic Fixed ball valve according to claim 1, which is characterized in that the upper valve rod (14) is enterprising
Enter valve body (12) top position to be arranged upper sliding bearing (15), gland (17) are set on upper sliding bearing (15), on gland (17)
Gland (19) are arranged in gap filling filler (18) between at the top of square upper valve rod (14) and valve body (12), filler (18) top.
3. fireproof antistatic Fixed ball valve according to claim 1 or 2, which is characterized in that the valve seat support ring
(7) material is polytetrafluoroethylene material.
4. fireproof antistatic Fixed ball valve according to claim 3, which is characterized in that the valve seat support ring (7)
Two layers of O-ring seal (5) is set with the contact surface of valve body (12) and valve deck (22).
5. fireproof antistatic Fixed ball valve according to claim 2, which is characterized in that the properties of journal bearing lubricated (4)
Lower adjustment gasket (3) is set between bottom and lower valve rod (2) contact surface, is arranged between upper sliding bearing (15) and gland (17) contact surface
Upper adjustment gasket (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820906808.XU CN208565625U (en) | 2018-06-12 | 2018-06-12 | A kind of fireproof antistatic Fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820906808.XU CN208565625U (en) | 2018-06-12 | 2018-06-12 | A kind of fireproof antistatic Fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565625U true CN208565625U (en) | 2019-03-01 |
Family
ID=65485789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820906808.XU Active CN208565625U (en) | 2018-06-12 | 2018-06-12 | A kind of fireproof antistatic Fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565625U (en) |
-
2018
- 2018-06-12 CN CN201820906808.XU patent/CN208565625U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 169 Hangkong Road, Tianjin Binhai New Area Pilot Free Trade Zone (Airport Economic Zone), 300300 Patentee after: Tianjin Zhongtian Nuclear Technology Industry Co.,Ltd. Country or region after: China Address before: No. 169 Hangkong Road, Tianjin Binhai New Area Pilot Free Trade Zone (Airport Economic Zone), 300300 Patentee before: TIANJIN ZHONGHE SCIENCE & TECHNOLOGY INDUSTRIAL CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |