CN201344273Y - Air-proof gate valve - Google Patents
Air-proof gate valve Download PDFInfo
- Publication number
- CN201344273Y CN201344273Y CNU2009200110631U CN200920011063U CN201344273Y CN 201344273 Y CN201344273 Y CN 201344273Y CN U2009200110631 U CNU2009200110631 U CN U2009200110631U CN 200920011063 U CN200920011063 U CN 200920011063U CN 201344273 Y CN201344273 Y CN 201344273Y
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- bonnet
- special
- valve seat
- shaped rubber
- plate
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of gate valves of mechanical sealing, in particular to an air-proof gate valve. The air-proof gate valve comprises a valve seat, an upper valve cover, a hold-down bolt of the upper valve cover, an inserting plate, a locking nut of the inserting plate, a pushing rod of the inserting plate, a push rod driving device of the inserting plate, and a special-shaped rubber packing washer which is arranged between the upper valve cover and the inserting plate, and is provided with a hollow cavity, wherein the outside is contacted with the valve seat, the inside is contacted with a compression ring of the packing washer, the hollow cavity of the special-shaped rubber packing washer and a ventilating hollow cavity of the upper valve cover are communicated into an air-proof hollow cavity, and a pneumatic pipeline and the ventilating hollow cavity of the upper valve cover are connected for filling air to the air-proof hollow cavity. Sealing grooves are respectively arranged under the upper valve cover, on the upper surface of the compression ring of the packing washer and on the upper surface of the valve seat, and are matched with a lug boss of the special-shaped rubber packing washer for guaranteeing that the gate valve has a good sealing structure. A solid lubricating column is arranged between the valve seat and the inserting plate. The air-proof gate valve has the advantages of good sealing performance, flexible and convenient operation and long service life.
Description
Technical field
The utility model relates to the push-pull valve technical field of mechanical seal, particularly a kind of Gasproof damper valve.
Background technique
The mechanical seal push-pull valve is widely used in industrial enterprises and institutions such as metallurgy, chemical industry, cement, mining industry.Technical requirements to the mechanical seal push-pull valve is: good seal performance, flexible and convenient operation, long service life.Present various mechanical seal push-pull valves exist common problem to be: because the structure of Sealing is unreasonable, make sealability bad; Because being worn easily, Sealing can not get compensation, so cause sealability variation gradually; Because being mingled with oarse-grained material sometimes in liquid, the gas medium piles up in valve body, or bigger solid matter is stuck between plate and the valve port groove, and hinders the operation of plate, and it is not in place to cause plate to close, reduced the usefulness of push-pull valve, even the function that valve is lost close.In order to reach technical requirements to push-pull valve, make push-pull valve have good and stable sealability, flexible and convenient operation increases the service life, and must change the design of push-pull valve.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of novel Gasproof damper valve at the present existing problem of mechanical seal push-pull valve.
The purpose of this utility model is achieved through the following technical solutions:
According to a kind of Gasproof damper valve of the present utility model, comprise valve seat, bonnet, the bonnet hold-down bolt, plate, the seal ring pressure ring, the plate push rod, plate push rod drive unit, it is characterized in that between described bonnet and plate, being provided with the special-shaped rubber seal that has cavity, the outside of this special-shaped rubber seal contacts with described valve seat, the inboard of this special-shaped rubber seal contacts with the seal ring pressure ring, this seal ring pressure ring is connected with described bonnet by junk ring bolt, be provided with the ventilation cavity in the described bonnet, ventilation cavity on this bonnet formation gastight cavity that communicates with the cavity of special-shaped rubber seal, the side and of this bonnet ventilation cavity pipeline of calming the anger is connected.
Downside at described bonnet is provided with the bonnet sealed groove, the last projection of this bonnet sealed groove and described special-shaped rubber seal is complementary, on the upper-end surface of described seal ring pressure ring, be provided with sealed groove, the inboard lower convexity of the sealed groove of this seal ring pressure ring and described special-shaped rubber seal is complementary, on the upper-end surface of described valve seat, be provided with the valve base sealing groove, this valve base sealing ditch is provided with stuffing box packing and presses culvert in the right-hand member inboard of described valve seat, in this stuffing box packing pressure is contained, be provided with stuffing box packing and stuffing box packing pressure ring, between described pressure ring and described plate push rod drive unit, be provided with spring.
Described plate be one round, a ring-like boss is arranged on the position of plate and special-shaped rubber seal surface of contact.
Downside in the left part of described valve seat is provided with drainage device.
On the described pipeline of calming the anger, be provided with pressure sensing, display device and the control valve of calming the anger.
Be connected by fixing bolt between the right side of described valve seat and the described plate push rod drive unit.
On described plate push rod drive unit, the plate device for detecting distance of travel is installed.
Characteristics of the present utility model are:
1) Gasproof damper valve of the present utility model has adopted the special-shaped rubber seal that has cavity, is that the soft or hard cooperation contacts between two sealing surfaces of seal ring and plate.Be respectively equipped with sealed groove on the upper-end surface of the downside of bonnet, seal ring pressure ring and on the upper-end surface of valve seat, be complementary with the projection of special-shaped rubber seal, when plate during in the position of closing, formed gastight cavity is remained full of calm the anger, thereby guarantee that push-pull valve has good sealing structure;
2) cavity is connected with the pipeline of calming the anger because bonnet is ventilated, calm the anger and be separately installed with pressure sensing on the pipeline, the display device and the control valve of calming the anger, when push-pull valve is in closed condition, control valve is opened to send in the gastight cavity and is calmed the anger, under the pressure of compressed air effect, make special-shaped rubber seal be fitted on the plate tightly, thereby guarantee that push-pull valve has excellent sealing performance, and when needs are opened push-pull valve, earlier by control valve with the discharge of calming the anger in the gastight cavity, reduce the pressure between special-shaped rubber seal and the plate, this just reduces the frictional force between special-shaped rubber seal and the plate, thereby reduced the wearing and tearing of special-shaped rubber seal and plate, prolonged the working life of seal ring;
3) owing between described valve seat and plate, be provided with the equally distributed solid lubrication post of a circle, increase the greasy property between valve seat and the plate, thereby reduced the wearing and tearing of valve seat and plate, prolonged the working life of plate and valve seat;
4) press culvert owing to be provided with stuffing box packing, press in the culvert in this stuffing box packing to be provided with Expanded graphite stuffing box packing and packing press ring, improved the lubricated and sealability between push rod and the valve seat in the right-hand member inboard of valve seat;
5) owing to be provided with spring between packing press ring in the stuffing box packing of the right side of valve seat press to be contained and the plate drive unit, the elastic force of spring can compensate the problem of sealability decline between the plate push rod that causes because of the filler abrasion loss and valve body;
6) because the downside in described valve seat left part is provided with drainage device, this drainage device be can regularly open, mud or the black dirt and the foreign material that may stockpile in valve seat given off;
7) owing on described plate drive unit, be provided with the plate device for detecting distance of travel, because of causing plate, the mud in the valve seat or black dirt and foreign material close when not in place, and the plate device for detecting distance of travel sends signal indication blowdown or the plate closing operation that carries out repetition.
Gasproof damper valve advantage of the present utility model is: good seal performance, and flexible and convenient operation, the may command performance is good, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the local structure for amplifying schematic representation of the left part of Fig. 1.
Embodiment
Given embodiment further specifies embodiment of the present utility model below in conjunction with accompanying drawing.
As Fig. 1,2, shown in 3, according to a kind of Gasproof damper valve of the present utility model, comprise valve seat 1, bonnet 3, bonnet hold-down bolt 2, plate 6, plate locking nut 18, plate push rod 12, plate push rod drive unit 23, it is characterized in that between described bonnet 3 and plate 6, being provided with the special-shaped rubber seal 7 that has cavity, the outside of this special-shaped rubber seal 7 contacts with described valve seat 1, the inboard of this special-shaped rubber seal 7 contacts with seal ring pressure ring 5, this seal ring pressure ring 5 is connected with described bonnet 3 by junk ring bolt 4, the cavity of this special-shaped rubber seal 7 formation gastight cavity that communicates with the ventilation cavity 24 of bonnet 3, the side and of the ventilation cavity 24 of this bonnet 3 pipeline 9 of calming the anger is connected.
As Fig. 1, shown in 3, be provided with the bonnet sealed groove 25 of two Different Diameter at the downside of described bonnet 3, these two bonnet sealed grooves 25 are complementary with the last projection of described special-shaped rubber seal 7, on the upper-end surface of described seal ring pressure ring 5, be provided with seal ring pressure ring sealed groove 26, this seal ring pressure ring sealed groove 26 is complementary with the inboard lower convexity of described special-shaped rubber seal 7, be provided with valve base sealing groove 27 on the upper-end surface of described valve seat 1, this valve base sealing groove 27 is complementary with the outside lower convexity of described special-shaped rubber seal 7.。
Between described valve seat 1 and plate 6, be provided with the equally distributed solid lubrication post 16 of a circle.
Be provided with stuffing box packing in the right-hand member inboard of described valve seat 1 and press culvert 19, press to contain in 19 in this stuffing box packing to be provided with stuffing box packing 20 and packing press ring 21, between these packing press ring 21 right sides and described plate push rod drive unit 23, be provided with spring 22.
Downside at the left end of described valve seat 1 is provided with drainage device 15.
On the described pipeline 9 of calming the anger, be respectively equipped with pressure sensing, display device 10 and the control valve 11 of calming the anger, be used to control air inlet, the exhaust of gastight cavity.
Be connected by fixing bolt 13 between the right side of described valve seat 1 and the described plate push rod drive unit 23.
On the described plate push rod drive unit 23 The attracted numbers sensor 14 is installed.
On valve seat 1 and bonnet 3, there are 8, two screws of screw 17 and screw to be used for connecting the pipeline at push-pull valve two ends respectively respectively.
The advantage of Gasproof damper valve of the present utility model is: good seal performance, flexible and convenient operation makes Long with the life-span.
Claims (8)
1, a kind of Gasproof damper valve, comprise valve seat, bonnet, the bonnet hold-down bolt, plate, the plate locking nut, the plate push rod, plate push rod drive unit, it is characterized in that between described bonnet and plate, being provided with the special-shaped rubber seal that has cavity, the outside of this special-shaped rubber seal contacts with described valve seat, the inboard of this special-shaped rubber seal contacts with the seal ring pressure ring, this seal ring pressure ring is connected with described bonnet by junk ring bolt, be provided with the ventilation cavity in the described bonnet, ventilation cavity on this bonnet formation gastight cavity that communicates with the cavity of special-shaped rubber seal, the side and of this bonnet ventilation cavity pipeline of calming the anger is connected.
2, Gasproof damper valve according to claim 1, it is characterized in that the downside at described bonnet is provided with the bonnet sealed groove of two Different Diameter, the last projection of these two bonnet sealed grooves and described special-shaped rubber seal is complementary, on the upper-end surface of described seal ring pressure ring, be provided with sealed groove, the inboard lower convexity of the sealed groove of this seal ring pressure ring and described special-shaped rubber seal is complementary, be provided with the valve base sealing groove on the upper-end surface of described valve seat, the outside lower convexity of this valve base sealing groove and described special-shaped rubber seal is complementary.
3, Gasproof damper valve according to claim 1 is characterized in that being provided with the equally distributed solid lubrication post of a circle between described valve seat and plate.
4, Gasproof damper valve according to claim 1, it is characterized in that being provided with stuffing box packing in the right-hand member inboard of described valve seat presses culvert, press in this stuffing box packing to be provided with stuffing box packing and packing press ring in containing, between the right side of this pressure ring and described plate push rod drive unit, be provided with spring.
5, Gasproof damper valve according to claim 1 is characterized in that being provided with drainage device at the downside of the left end of described valve seat.
6, Gasproof damper valve according to claim 1 is characterized in that being provided with pressure sensing, display device and the control valve of calming the anger on the described pipeline of calming the anger.
7, Gasproof damper valve according to claim 1 is characterized in that being connected by fixing bolt between the right side of described valve seat and the described plate push rod drive unit.
8, Gasproof damper valve according to claim 1 is characterized in that on the described plate push rod drive unit The attracted numbers sensor being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200110631U CN201344273Y (en) | 2009-02-27 | 2009-02-27 | Air-proof gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200110631U CN201344273Y (en) | 2009-02-27 | 2009-02-27 | Air-proof gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344273Y true CN201344273Y (en) | 2009-11-11 |
Family
ID=41275854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200110631U Expired - Fee Related CN201344273Y (en) | 2009-02-27 | 2009-02-27 | Air-proof gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344273Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949253A (en) * | 2017-04-27 | 2017-07-14 | 沈阳真空技术研究所 | Inflate piston seal vacuum gate valve |
-
2009
- 2009-02-27 CN CNU2009200110631U patent/CN201344273Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949253A (en) * | 2017-04-27 | 2017-07-14 | 沈阳真空技术研究所 | Inflate piston seal vacuum gate valve |
| CN106949253B (en) * | 2017-04-27 | 2023-10-27 | 沈阳真空技术研究所有限公司 | Inflatable piston sealing vacuum gate 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 |
Granted publication date: 20091111 Termination date: 20160227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |