CN203963070U - A kind of ecp knife gate valve - Google Patents
A kind of ecp knife gate valve Download PDFInfo
- Publication number
- CN203963070U CN203963070U CN201420254498.XU CN201420254498U CN203963070U CN 203963070 U CN203963070 U CN 203963070U CN 201420254498 U CN201420254498 U CN 201420254498U CN 203963070 U CN203963070 U CN 203963070U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- stainless steel
- ecp
- knife gate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 14
- 230000009977 dual effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 15
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model provides a kind of ecp knife gate valve, comprise valve body and the upper pressure type valve gap removably connecting with valve body, on valve body, cover has seal ring, seal ring and valve body are that dual face seals flexibly connects, valve body top is provided with stainless steel flashboard, and stainless steel flashboard is arranged with support outward, and support top is fixedly connected with cylinder, stainless steel flashboard connecting positioner, valve body is connected by feedback rod with positioning work piece.The beneficial effects of the utility model are simple in structure, easy for installation, and good airproof performance is avoided between sealing surface causing and increasing the service life erosion and scratch, and realize remote control, automaticity is high.
Description
Technical field
The utility model belongs to coal preparation technology field, especially relates to a kind of ecp knife gate valve.
Background technique
Along with improving constantly of domestic coal preparation technology, various product all makes rapid progress in constantly improving, deepen, innovating, meet the coal preparation technology improving constantly and overcome the various unfavorable factors of product in application process, electronic gas control knife gate valve is exactly the product deepening constantly in this background.
In the prior art, the electronic gas control knife gate valve boundary dimension that factory is used is larger, structure is more complicated, open and need certain space, opening/closing time is long, easily causes erosion and scratch between sealing surface, the one side sealing that is rigidly connected is poor, keep in repair more difficultly, can not realize remote control, automaticity is low.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of ecp knife gate valve, simple in structure, easy for installation, and good airproof performance is avoided between sealing surface causing and increasing the service life erosion and scratch, and realize remote control, automaticity is high.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of ecp knife gate valve, it is characterized in that: comprise valve body and the upper pressure type valve gap removably connecting with described valve body, on described valve body, cover has seal ring, described seal ring and described valve body are that dual face seals flexibly connects, described valve body top is provided with stainless steel flashboard, described stainless steel flashboard is arranged with support outward, described support top is fixedly connected with cylinder, described stainless steel flashboard connecting positioner, described valve body is connected by feedback rod with described positioning work piece.
Preferably, described valve body and described upper pressure type valve gap are bolted.
Preferably, described support is arranged on described valve body outward edge.
Preferably, described valve body, described upper pressure type valve gap, described cylinder, described positioning work piece, described feedback rod are all communicated with electric control box.
Advantage and the good effect that the utlity model has are:
1. valve adopts upper pressure type valve gap, and gland and valve body are with bolts, simple in structure, easy for installation, are easy to change seal ring, reach good sealing effect.
2. distinctive dual face seals flexibly connects, solved the directivity of one side sealing, install more convenient, in sealing, compared with the rigidly connected better tightness of one side, can accomplish zero leakage, sealing grade can reach 6 grades, simple with valve seat Placement, be easy to change, avoid causing and increasing the service life erosion and scratch between sealing surface.
3. the cooperation by valve positioner and feedback control system realizes remote control, and automaticity is high, accurately control valve location.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model
Fig. 2 is side view of the present utility model
In figure:
1, valve body 2, upper pressure type valve gap 3, seal ring
4, stainless steel flashboard 5, support 6, cylinder
7, positioning work piece 8, feedback rod
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1, 2, the utility model provides a kind of ecp knife gate valve, comprise valve body 1 and the upper pressure type valve gap 2 removably connecting with valve body 1, on valve body 1, cover has seal ring 3, and seal ring 3 is with valve body 1 for dual face seals flexibly connects, and valve body 1 top is provided with stainless steel flashboard 4, the outer support 5 that is arranged with of stainless steel flashboard 4, support 5 tops are fixedly connected with cylinder 6, stainless steel flashboard 4 connecting positioners 7, and valve body 1 is connected by feedback rod 8 with positioning work piece 7.
Further, valve body 1 is bolted with upper pressure type valve gap 2, simple in structure, easy for installation, is easy to change seal ring, reaches good sealing effect.
Support 5 is arranged on valve body 1 outward edge, plays fixing effect, improves working strength, increases the service life.
Valve body 1, upper pressure type valve gap 2, cylinder 6, positioning work piece 7, feedback rod 8 are all communicated with electric control box, realize remote operation, and automaticity is high.
The working principle of this example: valve adopts upper pressure type valve gap 2, and filler is put in valve body 1, and upper pressure type valve gap 2 is tipped in from top to bottom, filler is positioned at valve body recess, there will not be shift phenomenon, reach the comprehensive engagement with stainless steel flashboard 4, reach good sealing effect.Seal ring 3 and valve body 1 flexibly connect for dual face seals, the sealing pair two sides that double-sealing is flexible coupling is nonmetallic material, with respect to the one-sided nonmetallic one-sided better tightness that is flexible coupling of sealing pair, can accomplish zero leakage, sealing grade can reach 6 grades, simple with valve seat Placement, be easy to change.The feedback measurement signal of valve positioner 7 using displacement of valve rod signal as input, using controller output signal as setting signal, compare, when both have deviation, change the output signal of Qi Dao actuator, make actuator's action, set up the one-to-one relationship between displacement of valve rod amount and controller output signal.Therefore, valve positioner 7 forms take displacement of valve rod as measurement signal, is output as the feedback control system of setting signal with controller.The manipulated variable of this control system is the output signal that valve positioner 7 goes to actuator.
The working procedure of this example: valve is accepted the command signal (being generally 4～20mA) of control system or controller generation, by internal electric conversion equipment, the source of the gas signal of input is changed into the required air pressure of valve actuator, thereby make valve reach relevant position.Whether at output pressure, make in valve event process, due to the existence of positioning work piece 7 and feedback rod 8, positioning work piece 7 detected and move and put in place, after putting in place, positioning work piece 7 can be stablized output pressure according to this feedback quantity, thereby plays the effect of location.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (4)
1. an ecp knife gate valve, it is characterized in that: comprise valve body and the upper pressure type valve gap removably connecting with described valve body, on described valve body, cover has seal ring, described seal ring and described valve body are that dual face seals flexibly connects, described valve body top is provided with stainless steel flashboard, and described stainless steel flashboard is arranged with support outward, and described support top is fixedly connected with cylinder, described stainless steel flashboard connecting positioner, described valve body is connected by feedback rod with described positioning work piece.
2. ecp knife gate valve according to claim 1, is characterized in that: described valve body and described upper pressure type valve gap are bolted.
3. ecp knife gate valve according to claim 1, is characterized in that: described support is arranged on described valve body outward edge.
4. ecp knife gate valve according to claim 1, is characterized in that: described valve body, described upper pressure type valve gap, described cylinder, described positioning work piece, described feedback rod are all communicated with electric control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254498.XU CN203963070U (en) | 2014-05-16 | 2014-05-16 | A kind of ecp knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254498.XU CN203963070U (en) | 2014-05-16 | 2014-05-16 | A kind of ecp knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963070U true CN203963070U (en) | 2014-11-26 |
Family
ID=51923653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420254498.XU Expired - Fee Related CN203963070U (en) | 2014-05-16 | 2014-05-16 | A kind of ecp knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203963070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405711A (en) * | 2022-10-08 | 2022-11-29 | 浙江挺宇流体设备股份有限公司 | Control gate valve and its control system |
-
2014
- 2014-05-16 CN CN201420254498.XU patent/CN203963070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405711A (en) * | 2022-10-08 | 2022-11-29 | 浙江挺宇流体设备股份有限公司 | Control gate valve and its control system |
| CN115405711B (en) * | 2022-10-08 | 2025-03-11 | 浙江挺宇流体设备股份有限公司 | Control gate valve and its control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204664524U (en) | A kind of intake valve for exhaust end base of oil injection threaded bolt formula vavuum pump | |
| CN203963070U (en) | A kind of ecp knife gate valve | |
| CN203442151U (en) | Automatic compensation sleeve double-seat valve | |
| CN202082393U (en) | High-airtightness seal ring | |
| CN103470793A (en) | Double-slope eccentric butterfly valve | |
| CN105729688A (en) | Valve with integrated valve island | |
| CN203131068U (en) | High-sealing wedge gate valve | |
| CN204387474U (en) | The high leak tightness ammonia stop valve of auto-compensation | |
| CN203500514U (en) | Eccentric butterfly valve with two inclined planes | |
| CN203743599U (en) | Steel pipe cold extruding valve | |
| CN204962008U (en) | Two packing seal valves | |
| CN203131074U (en) | Wedge gate valve | |
| CN202629107U (en) | Soft-sealed triple eccentric butterfly valve | |
| CN204878769U (en) | High pressure gas piping butterfly valve | |
| CN202812253U (en) | Novel fixing structure for butterfly valve seal ring | |
| CN203272829U (en) | Slurry valve | |
| CN203906809U (en) | Novel single seated valve switched off precisely | |
| CN204004491U (en) | A kind of back seal dark rod flat plate gate valve of online replacing filler | |
| CN204755936U (en) | Small dimension stop valve for refrigerating plant | |
| CN203963045U (en) | A kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves | |
| CN204828681U (en) | Cooling right -angle type stop valve of industry | |
| CN204717014U (en) | Refrigeration plant stop valve | |
| CN203963046U (en) | The just round sealing surface Bidirectional pressure butterfly valve of one | |
| CN204114176U (en) | Dress formula bidirectional sealed butterfly valve in one | |
| CN203374883U (en) | Light-torque high-platform type four-way linear seal butterfly valve |
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: 20141126 Termination date: 20170516 |