CN203404405U - Flat gate valve matched with slurry pump for use - Google Patents
Flat gate valve matched with slurry pump for use Download PDFInfo
- Publication number
- CN203404405U CN203404405U CN201320482852.XU CN201320482852U CN203404405U CN 203404405 U CN203404405 U CN 203404405U CN 201320482852 U CN201320482852 U CN 201320482852U CN 203404405 U CN203404405 U CN 203404405U
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- Prior art keywords
- valve
- flat
- flat gate
- gate valve
- valve plate
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- Expired - Fee Related
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Abstract
The utility model relates to a flat gate valve matched with a slurry pump for use. Elastic protecting layers are arranged on the parts, in sliding contact with the surface of a valve plate of the flat gate valve and/or a flat valve shell, of the valve plate. The elastic protecting layers are arranged on the surface of the valve plate, when the valve plate is in contact with the valve shell, under the action of elastic force, on one hand, friction resistance can be lowered, and on the other hand, the valve plate and the valve shell are in close fit so that liquid can be prevented from leaking. Accordingly, the quality of the flat gate valve can be improved, and the service life of the flat gate valve can be prolonged.
Description
Technical field
the utility model relates to a kind of flat gate valve that coordinates slag stock pump to use, and this flat gate valve comprises flat valve casing and is arranged on the valve plate driving by valve rod in flat valve casing, and the drive unit for lifting valve rod that is arranged on valve casing top.
Background technique
what flat gate valve of the prior art adopted conventionally is exactly said structure.Due to flat gate valve and slag stock pump, to be used in conjunction with shared space relatively little, so flat gate valve is widely used.In addition, because the liquid that slag stock pump aspirates is the solid water liquid mixture of kind of coarse granule and high concentration mostly, its corrosivity is stronger, and flat gate valve is in opening or closing the process of pipeline, by valve plate, moved up and down to realize, and valve plate and valve casing are all made by rigid material, if do not kept between the two, do not closely cooperate, liquid easily oozes out from gate valve, if closely cooperated between the two, valve plate is easily worn when moving up and down, particularly slag stock pump is when carrying high concentration medium or solid particle mixture or containing the liquid of the particle that is corrosive, can aggravate the rate of wear of valve plate, reduce the working life of flat gate valve.
the disclosed name of No. 201448466U, Chinese patent is called " particle sludge ash pump valve " and adds and cover mouthful high chromium 227 wear-resistant steel materials in flashboard overcurrent part and part easy to wear, to improve its working life.But because high chromium 227 wear-resistant steel materials are also the materials that rigidity is very strong, even if it is wear-resistant, also fragile at flashboard and valve casing friction, so can greatly not improve its working life.
Summary of the invention
task of the present utility model is to propose a kind of elasticity of utilizing to reduce the flat gate valve that surface friction drag is used to solve the cooperation slag stock pump of the problems such as the fragile and airtight performance of valve plate is poor.
the flat gate valve that the cooperation slag stock pump that the utility model proposes is used, this flat gate valve comprises flat valve casing and is arranged on the valve plate driving by valve rod in flat valve casing, and the drive unit for lifting valve rod that is arranged on valve casing top, the surface of described valve plate and/or flat valve casing are provided with elastic protection layer with the position that valve plate slip contacts.
described elastic protection layer consists of the rigid layer of being made by high abrasion cast steel that is arranged on the rubber layer on valve plate surface and be arranged on rubber layer.
described drive unit consists of with the manual pulley being connected with Pneumatic actuator Pneumatic actuator.
the surface of the valve plate in the flat gate valve that the cooperation slag stock pump that the utility model proposes is used and/or valve casing are provided with elastic protection layer with the position that valve plate slip contacts, while contacting with valve casing due to valve plate, under the effect of elastic force, can reduce surface friction drag on the one hand, on the other hand because closely cooperating between the two, can prevent liquid leakage, therefore can improve the quality of flat valve and extend its working life.
Accompanying drawing explanation
accompanying drawing 1 is the embodiment's of flat gate valve that uses of the cooperation slag stock pump that proposes of the utility model main TV structure schematic diagram;
accompanying drawing 2 is side views of Fig. 1.
Embodiment
referring to Fig. 1 and Fig. 2, these two accompanying drawings provide the embodiment's of flat gate valve that cooperation slag stock pump that the utility model proposes uses surface structure.This flat gate valve comprises flat valve casing 1, valve rod 2, drive unit 3 and valve plate 4.Wherein, flat valve casing 1 has the shallow shell 11 of a hollow, and is respectively arranged with circular water suction through hole 12 and water outlet through hole in the both sides of shallow shell 11.Valve rod 2 is installed in shallow shell 11, and the upper end of this valve rod 2 is extended shallow shell 11 and is connected with drive unit 3, and the lower end of valve rod 2 is provided with valve plate 4.Drive unit 3 consists of with the manual pulley being connected with Pneumatic actuator Pneumatic actuator, and drive unit 3 is the parts for actuate valve stem 2 liftings, when valve rod 2 rises, flat gate valve can be opened, and when valve rod 2 declines, flat gate valve can be closed.In order to prevent that valve plate 4 is worn, on the surface of valve plate 4, be provided with elastic protection layer, this elastic protection layer forms by being arranged on the rubber layer 41 on valve plate 4 surfaces and the rigid layer of being made by high abrasion cast steel 42 being arranged on rubber layer 41.In addition, elastic protection layer also can be set directly at the slide position that contacts or arrange respectively and be provided with elastic protection layer (not providing in figure) at the position that surface and the flat valve casing 1 of valve plate 4 contacts with valve plate slip of flat valve casing 1 and valve plate 4.Because described elastic protection layer is thinner, after flat gate valve is closed, even if liquid has larger pressure, be also difficult for making liquid to ooze out in flat gate valve.
Claims (3)
1. the flat gate valve that coordinates slag stock pump to use, this flat gate valve comprises flat valve casing and is arranged on the valve plate driving by valve rod in flat valve casing, and the drive unit for lifting valve rod that is arranged on valve casing top, it is characterized in that: the surface of described valve plate and/or flat valve casing are provided with elastic protection layer with the position that valve plate slip contacts.
2. flat gate valve according to claim 1, is characterized in that: described elastic protection layer consists of the rigid layer of being made by high abrasion cast steel that is arranged on the rubber layer on valve plate surface and be arranged on rubber layer.
3. flat gate valve according to claim 1, is characterized in that: described drive unit consists of with the manual pulley being connected with Pneumatic actuator Pneumatic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482852.XU CN203404405U (en) | 2013-08-08 | 2013-08-08 | Flat gate valve matched with slurry pump for use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482852.XU CN203404405U (en) | 2013-08-08 | 2013-08-08 | Flat gate valve matched with slurry pump for use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404405U true CN203404405U (en) | 2014-01-22 |
Family
ID=49940342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320482852.XU Expired - Fee Related CN203404405U (en) | 2013-08-08 | 2013-08-08 | Flat gate valve matched with slurry pump for use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404405U (en) |
-
2013
- 2013-08-08 CN CN201320482852.XU patent/CN203404405U/en not_active Expired - Fee Related
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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: 20140122 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |