CN201059370Y - Non-abrasion valve seal structure - Google Patents
Non-abrasion valve seal structure Download PDFInfo
- Publication number
- CN201059370Y CN201059370Y CNU2007200724668U CN200720072466U CN201059370Y CN 201059370 Y CN201059370 Y CN 201059370Y CN U2007200724668 U CNU2007200724668 U CN U2007200724668U CN 200720072466 U CN200720072466 U CN 200720072466U CN 201059370 Y CN201059370 Y CN 201059370Y
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- China
- Prior art keywords
- valve
- guide rail
- utility
- model
- sealing surface
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- Expired - Fee Related
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Abstract
The utility model discloses a wearproof valve leak tight structure, and relates to a wearproof valve leak tight structure driven to seal by a pneumatic slide way mechanism. The wearproof valve leak tight structure is arranged between a valve seat and a valve cap, and comprises a sealing face which is sealed with the valve seat through the pneumatic slide way mechanism. The utility model is characterized in that gasket seal is changed into regular right-left movement; no wear is produced between the sealing surface and a valve plug when utility model is closed or opened; when the utility model is closed, the valve plug and the sealing surface achieves normal seal with strong reliability, which solves the problems of wear of the sealing surface and damage of the sealing surface due to the accumulation of viscous dust, and the problem of leakage and wastage due to the large area rotary wear of the valve plug in bad working situations. Compared with the prior valve structure of the same kind, the utility model dose not make substantial change, while the operation is full automatic, the service life is prolonged, manpower and material resources are saved; the zerofriction seal is adopted, the moment of the utility model is 1/4 of that of a common valve when the utility model is closed or opened; the cylinder of the utility model is 5-6 times smaller than that of the prior valve, which greatly saves cost.
Description
Technical field
The utility model does not have the wearing and tearing valve sealing structure, relate to a kind of valve seat loss and thickness dust of preventing and accumulate the sealing configuration that causes valve seat damage, especially a kind of nothing wearing and tearing valve sealing structure by pneumatic guide rail mechanism drive sealing is specially adapted to ball valve, butterfly valve.
Background technique
Traditional valve seal mechanism is a fixed structure, when spool is opened or is closed, spool and sealing surface of seat can wear and tear under the repeated friction of fast mouthful of spool edge, thereby have influence on the reliability of normal contact seal between spool and the sealing surface, have reduced working life.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of nothing wearing and tearing valve sealing structure of anti-wear, high pressure resistant, leakage proof.
The utility model solves the problems of the technologies described above the technological scheme of taking: a kind of nothing wearing and tearing valve sealing structure, be arranged between valve seat and the valve gap, and comprise a sealing surface, the sealing face is by pneumatic guide rail mechanism and valve base sealing.Principle of the present utility model is: pneumatic guide rail mechanism drives the lower edge guide rail at air pressure and moves, and realizes sealing surface and valve base chamber compacting sealing, can effectively prevent valve seat and the valve core chamber rotary seal wearing and tearing to sealing surface.
On the technique scheme basis, described pneumatic guide rail mechanism is arranged in the cavity between valve seat and the valve gap, is provided with the air flue of air feed and exhaust on valve seat and/or valve gap, the cavity UNICOM of air flue one end and pneumatic guide rail mechanism, the other end and extraneous UNICOM.This is the improvement of carrying out on valve seat and the architecture basics of valve gap own, to settle pneumatic guide rail mechanism, makes it in the limited field of cavity to do moving among a small circle, can the function of original shell not impacted.And, by air feed and exhaust realize pneumatic guide rail mechanism in cavity along the displacement of limited space, the gas that infeeds from the air feed air flue promotes the activity in limited scope of pneumatic guide rail mechanism, and discharge from the exhaust air flue, with the contact of control sealing surface by pneumatic guide rail mechanism and valve seat with separate, thereby realize valve opening and closing.
Guide rail and outer guide in pneumatic guide rail mechanism described in the utility model comprises, outer guide is fixed by interior guide rail, the interior guide rail of pneumatic guide rail mechanism is arranged in the cavity of valve seat and valve seat formation, and keeps the free gap at the cavity two ends, and outer guide is arranged on outside the cavity.Interior guide rail is moved by the control of confession, blast air in the scope of free gap, two ends; Outer guide then with spool by the sealing surface sealing that interacts.
Sealing surface of the present utility model is fixed on the outer guide or on the spool.
Guide rail is provided with two in of the present utility model, the mutual affixed and outer guide that is fixedly clamped, and such setting is more reasonable, simple installation.
Sealing surface described in the utility model is arranged on the outer guide, by the two groups of pneumatic guide rail mechanisms that move forward and backward and the seal spool of ball valve.Its principle is: when valve opening, earlier to the inboard air flue air feed that is arranged on the cavity that is made of valve seat and valve gap, outside air flue exhaust, thereby promoting pneumatic guide rail mechanism moves laterally, so originally the position by the sealing surface sealing discharged, spool is at the driven rotary of cylinder, valve open.Wherein, spool and distance after pneumatic guide rail mechanism separates are closed normally and are opened thereby foreign material that can particle is big retaining reaches in the outside between 1.5～3mm; When valve closing, spool earlier is returned to disconnect position under the drive of cylinder, pneumatic guide rail mechanism again by air flue for, exhaust by the lateral medial movement, the normal contact seal of spool and sealing surface.
On the such scheme basis, the upper and lower valve rod that spool is installed on the valve seat and on valve seat rotates, thereby reaches the purpose that spool does not have wearing and tearing.
Sealing surface described in the utility model is arranged on the spool of butterfly valve, with the outer guide interaction sealing of one group of pneumatic guide rail mechanism.
The beneficial effects of the utility model are:
1, change the fixing seal in the conventional valves into clocklike move left and right, reaching when closing and open does not have wearing and tearing, the normal contact seal of spool and sealing surface when closing, good reliability between sealing surface and the spool;
2, the loss of sealing surface and the damage problem that thickness dust accumulative total causes sealing surface have been solved specially;
3, adopt in the aeronautical technology surge or pneumatics is used to valve starting device, solve under the bad working environments and rotate the leakage losses problem that wearing and tearing cause because of the spool large size;
4, comparing traditional similar valve mechanism does not have great changes, operates whole automations, and increase working life, has saved the input of manpower and materials greatly;
5, employing is no friction sealed, and required moment is 1/4 of common valve when opening or closing, and is scarce littler 5～No. 6 than the gas of conventional valves, provides cost savings greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model ball valve.
Fig. 2 is the A portion enlarged diagram of Fig. 1.
Fig. 3 is the structural representation of the utility model butterfly valve.
Fig. 4 is the B portion enlarged diagram of Fig. 2.
Label declaration in the accompanying drawing
Guide rail in the 1-valve seat 2-valve gap 3,4-
5-spool 6-lower valve rod 7-sealing surface
8-outer guide 9-upper valve rod 10-filler
11,11 '-air flue
Embodiment
Embodiment 1
Structural representation and Fig. 2 of seeing also Fig. 1 the utility model ball valve are shown in the A portion enlarged diagram of Fig. 1, and a kind of nothing wearing and tearing valve sealing structure is arranged between valve seat 1 and the valve gap 2, wherein, valve is a ball valve, comprises a sealing surface 7, and sealing face 7 is by pneumatic guide rail mechanism and valve seat 1 sealing.
Described pneumatic guide rail mechanism is arranged in the cavity between valve seat 1 and the valve gap 2, is respectively equipped with the air flue 11,11 ' of air feed and exhaust on valve seat 1 and valve gap 2, air flue 11, the cavity UNICOM of 11 ' one end and pneumatic guide rail mechanism, the other end and extraneous UNICOM promote pneumatic guide rail mechanism activity.
Described pneumatic guide rail mechanism comprises two interior guide rails 3,4 and an outer guide 8, and outer guide 8 is by interior guide rail 3,4 is fixing, and the interior guide rail 3,4 of pneumatic guide rail mechanism is arranged in the cavity of valve seat 1 and valve gap 2 formations, and keeping the free gap with this cavity two ends, outer guide 8 is arranged on outside the cavity.
Described sealing surface 7 is arranged on the outer guide 8, and by spool 5 sealings of two groups of pneumatic guide rail structures that move forward and backward and ball valve, upper valve rod 9 and lower valve rod 6 that spool 5 is installed on the valve seat 1 and on valve seat 1 rotate.Be provided with filler 10 between valve seat 1 and the upper valve rod 9.
Described sealing surface 7 is made by teflon.
Structural representation and Fig. 4 of seeing also Fig. 3 the utility model butterfly valve are shown in the B portion enlarged diagram of Fig. 3, other structures are all identical with embodiment 1, just valve is a butterfly valve, spool 5 is a butterfly plate, described sealing surface 7 is arranged on the spool 5 of butterfly valve, with the outer guide 8 interaction sealings of one group of pneumatic guide rail mechanism.
Working principle of the present utility model is: when valve opening, elder generation is to inboard air flue 11 air feed of the cavity that is made of valve seat 1 and valve gap 2, air flue 11 ' the exhaust in the outside, thereby promoting pneumatic guide rail mechanism moves laterally, so originally the position by sealing surface 7 sealings discharged, so upper valve rod 9 and lower valve rod 6 rotations of spool 5 (comprising ball valve or butterfly valve) under the drive of cylinder on valve seat then are valve open.
When valve closing, spool 5 is returned to disconnect position earlier under the drive of cylinder, by the outside air flue 11 ' air feed of cavity, and inboard air flue 11 exhausts, pneumatic guide rail mechanism is by the lateral medial movement, spool 5 and sealing surface 7 normal contact seals.
Claims (8)
1. one kind is not had the wearing and tearing valve sealing structure, is arranged between valve seat and the valve gap, it is characterized in that:
Comprise a sealing surface, the sealing face is by pneumatic guide rail mechanism and valve base sealing.
2. nothing wearing and tearing valve sealing structure according to claim 1, it is characterized in that: described pneumatic guide rail mechanism is arranged in the cavity between valve seat and the valve gap, on valve seat and/or valve gap, be provided with the air flue of air feed and exhaust, the cavity UNICOM of air flue one end and pneumatic guide rail mechanism, the other end and extraneous UNICOM.
3. nothing wearing and tearing valve sealing structure according to claim 1 and 2, it is characterized in that: guide rail and outer guide in described pneumatic guide rail mechanism comprises, outer guide is fixed by interior guide rail, the interior guide rail of pneumatic guide rail mechanism is arranged in the cavity of valve seat and valve gap formation, and in reservation free gap, cavity two ends, outer guide is arranged on outside the cavity.
4. nothing according to claim 3 wearing and tearing valve sealing structure is characterized in that: described sealing surface is fixed on the outer guide or on the spool.
5. nothing wearing and tearing valve sealing structure according to claim 3, it is characterized in that: interior guide rail is provided with two, mutually affixed the and outer guide that is fixedly clamped.
6. nothing wearing and tearing valve sealing structure according to claim 3, it is characterized in that: sealing surface is arranged on the outer guide, by the two groups of pneumatic guide rail mechanisms that move forward and backward and the seal spool of ball valve.
7. nothing wearing and tearing valve sealing structure according to claim 6, it is characterized in that: the upper and lower valve rod that spool is installed on the valve seat and on valve seat rotates.
8. nothing wearing and tearing valve sealing structure according to claim 3, it is characterized in that: sealing surface is arranged on the spool of butterfly valve, with the outer guide interaction sealing of one group of pneumatic guide rail mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200724668U CN201059370Y (en) | 2007-07-13 | 2007-07-13 | Non-abrasion valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200724668U CN201059370Y (en) | 2007-07-13 | 2007-07-13 | Non-abrasion valve seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059370Y true CN201059370Y (en) | 2008-05-14 |
Family
ID=39407841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200724668U Expired - Fee Related CN201059370Y (en) | 2007-07-13 | 2007-07-13 | Non-abrasion valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059370Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014161207A1 (en) * | 2013-04-04 | 2014-10-09 | Qiu Jinquan | New high-pressure micro-torque ball valve |
| CN105065705A (en) * | 2015-08-07 | 2015-11-18 | 岳阳东方自控工程设备有限公司 | Fixed ball valve with electromagnetic suspension valve bases |
| CN105156708A (en) * | 2015-08-19 | 2015-12-16 | 江苏神通阀门股份有限公司 | Micro-torque ball valve |
-
2007
- 2007-07-13 CN CNU2007200724668U patent/CN201059370Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014161207A1 (en) * | 2013-04-04 | 2014-10-09 | Qiu Jinquan | New high-pressure micro-torque ball valve |
| CN105065705A (en) * | 2015-08-07 | 2015-11-18 | 岳阳东方自控工程设备有限公司 | Fixed ball valve with electromagnetic suspension valve bases |
| CN105156708A (en) * | 2015-08-19 | 2015-12-16 | 江苏神通阀门股份有限公司 | Micro-torque ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20110713 |