CN209054141U - A kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure - Google Patents
A kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure Download PDFInfo
- Publication number
- CN209054141U CN209054141U CN201821411549.XU CN201821411549U CN209054141U CN 209054141 U CN209054141 U CN 209054141U CN 201821411549 U CN201821411549 U CN 201821411549U CN 209054141 U CN209054141 U CN 209054141U
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- Prior art keywords
- flap
- valve
- runner
- valve seat
- valve body
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims description 9
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model provides the flap and valve seat combination structure of a kind of high temperature high voltage resistant antiscour valve, including valve body, runner is inside opened up, body wall opens up influent stream channel, influent stream channel is connected to form flow of media channel with runner, and the entrance location in influent stream channel is higher than the entry position of runner；It is located above runner in valve body and lays flap, be in clearance fit with valve body inner bore, the upper surface of flap opens up T-slot, interior to connect valve rod；Inverted V type annular groove is opened up in the lower end surface of flap, flap intermediate ledge point is matched with runner inner hole, and side wall of the inverted V type annular groove close to protrusion part is sealing cone；It is located on runner inner hole step in valve body and valve seat is installed, the sealing surface of valve seat matches to form linear sealing with the sealing cone of inverted V type annular groove；The phenomenon that the utility model makes flap avoid the direct erosion by medium, effectively prevents interior leakage, to improve the service life of valve.
Description
Technical field
The utility model relates to a kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure, belong to electric power,
Metallurgy, petrochemical industry.
Background technique
Currently in order to guaranteeing that apparatus of thermo-electric power boiler system is capable of the normal operation of safety and stability, in the pipeline of each system of boiler
On require scouring-proof stop valve.These scouring-proof stop valves be installed in hydrophobic turbine drain, water supply, heater condensate,
Boiler is hydrophobic, superheater is hydrophobic, on the pipelines and container such as hydrophobic to idle discharge device, the blowdown of water-cooling wall lower collecting box, packet wall, is usually used in height
The operating condition of warm high pressure and medium condition complexity.
The series of valves main feature includes: that scour resistance is strong, the replacement of long service life, trim is convenient, maintenance cost
It is low, easy to operate.
Currently used power station type scouring-proof stop valve generally existing following disadvantage in use:
1. being easy to hit and be destroyed by high-speed Medium particulate matter on flap and sealing surface of seat；
It is easy to generate cavitation effect 2. the medium of high temperature, high pressure acts directly on flap, causes valve sealing face
Damage, influences the sealing effect of valve；
3. the flap of common scouring-proof stop valve freely adjusts model when using steep-taper sealing surface, sealing surface and valve base sealing
Enclose relatively large, the sealing surface impression on flap is different, influences sealing effect.
Utility model content
The utility model provides the flap and valve seat combination structure of a kind of high temperature high voltage resistant antiscour valve, avoids flap
By the direct erosion of medium, the phenomenon that effectively preventing interior leakage, to improve the service life of valve.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure, including valve body, inside open up runner, valve
Body sidewall opens up influent stream channel, and influent stream channel is connected to form flow of media channel with runner, and the entrance location in influent stream channel
Higher than the entry position of runner；It is located above runner in valve body and lays flap, is in clearance fit with valve body inner bore, flap
Upper surface opens up T-slot, interior to connect valve rod；
Inverted V type annular groove is opened up in the lower end surface of flap, flap intermediate ledge point is matched with runner inner hole, inverted V type annular groove
Side wall close to protrusion part is sealing cone；
It is located on runner inner hole step in valve body and valve seat is installed, the sealing surface of valve seat and the sealing cone of inverted V type annular groove
Matching forms linear sealing；
As the further preferred of the utility model, side wall of the inverted V type annular groove of flap above-mentioned close to protrusion part is logical
Cross Co base cemented carbide built-up welding；
As the further preferred of the utility model, valve seat above-mentioned is to be welded on valve body ontology by Co base cemented carbide
Built-up welding is formed；
As the further preferred of the utility model, the aforementioned cylindrical structure of flap, outer diameter is cylindrical surface.
By above technical scheme, compared with the existing technology, the utility model has the following beneficial effects:
1, the lower end surface of the utility model flap opens up inverted V type annular groove, cooperates the flow direction structure form of valve body high in and low out,
It is significantly opened under valve wide open, full off state and in throttling action, the straight of medium can be effectively prevented from closing process
Erosion is connect, the service life of valve is improved；
2, flap outer diameter is the cylindrical surface of full section, bigger with runner inner hole guiding contact surface in valve body, can guarantee flap
The stability of flap lifting can be also improved while the amplitude for freely adjusting sealing surface is not too big；
3, the sealing surface of flap and valve seat is the built-up welding of Co base cemented carbide, and corrosion stability, wearability are preferably and hardness is higher.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the flap sealing state schematic diagram of the preferred embodiment of the utility model；
Fig. 2 is schematic diagram during the flap of the preferred embodiment of the utility model throttles；
Fig. 3 is the flap open state schematic diagram of the preferred embodiment of the utility model.
In figure: 1 is valve seat, and 2 be flap, and 3 be valve body, and 4 be valve rod.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As shown in Figure 1-3, the utility model includes following characteristics component: 1 is valve seat, and 2 be flap, and 3 be valve body, and 4 be valve
Bar.
The flap and valve seat combination structure of a kind of high temperature high voltage resistant antiscour valve of the utility model, including valve body,
Runner is inside opened up, body wall opens up influent stream channel, and influent stream channel is connected to form flow of media channel with runner, and influent stream is logical
The entrance location in road is higher than the entry position of runner；It is located above runner in valve body and lays flap, between is in valve body inner bore
Gap cooperation, the upper surface of flap open up T-slot, interior to connect valve rod；
Inverted V type annular groove is opened up in the lower end surface of flap, flap intermediate ledge point is matched with runner inner hole, inverted V type annular groove
Side wall close to protrusion part is sealing cone；
It is located on runner inner hole step in valve body and valve seat is installed, is with Co base cemented carbide welding rod heap on valve body
Weldering, and by being machined into, the sealing surface of valve seat matches to form linear sealing with the sealing cone of inverted V type annular groove；
As the further preferred of the utility model, side wall of the inverted V type annular groove of flap above-mentioned close to protrusion part is logical
Cross Co base cemented carbide built-up welding；
As the further preferred of the utility model, valve seat above-mentioned is to be welded on valve body ontology by Co base cemented carbide
Built-up welding is formed；
As the further preferred of the utility model, the aforementioned cylindrical structure of flap, outer diameter is cylindrical surface.
It drives flap to move up and down along valve interior wall by the lifting of valve rod, is valve when flap is lifted off valve seat
Opening process, medium lower upper and lower flowing in the runner of valve body via influent stream channel are valve when flap decline is close to valve seat
Door closing process, after the sealing cone and valve base sealing face contact of flap, valve is in off state, and medium is blocked by flap；
For valve during closing, what medium contacted first is all the lateral wall of flap, will not directly wash away flap
Sealing cone；When flap decline is close to valve seat, throttling action can be become apparent from this time, and medium erosion damage power is bigger, the application
The inverted V type annular groove that middle flap lower end surface opens up can form V-type runner with valve seat, change the flow path of medium, reduce medium
The kinetic energy for impacting sealing cone effectively makes sealing cone avoid the destruction suffered by the direct erosion of medium, while effectively
The phenomenon that preventing interior leakage, to improve the service life of valve；
When valve opening, the flowing of medium is also the V-type annular groove runner formed by flap and valve seat, equally avoids height
The medium of speed flowing is directly washed away to flap sealing cone, improves the service life of valve.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the application fields.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
The meaning of "and/or" described herein refers to that the case where respective individualism or both exists simultaneously wraps
Including including.
The meaning of " connection " described herein can be between component be directly connected to be also possible to pass through between component
Other components are indirectly connected with.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (4)
1. a kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure, including valve body, inside open up runner, valve body
Side wall opens up influent stream channel, and influent stream channel is connected to form flow of media channel with runner, and the entrance location in influent stream channel is high
In the entry position of runner；Flap is laid it is characterized by: being located above runner in valve body, is matched with valve body inner bore in gap
It closes, the upper surface of flap opens up T-slot, interior to connect valve rod；
Inverted V type annular groove is opened up in the lower end surface of flap, flap intermediate ledge point is matched with runner inner hole, and inverted V type annular groove is close
The side wall for protruding part is sealing cone；
It is located on runner inner hole step in valve body and valve seat is installed, the sealing surface of valve seat is matched with the sealing cone of inverted V type annular groove
Form linear sealing.
2. the flap of high temperature high voltage resistant antiscour valve according to claim 1 and valve seat combination structure, it is characterised in that:
Side wall of the inverted V type annular groove of flap above-mentioned close to protrusion part passes through the built-up welding of Co base cemented carbide.
3. the flap of high temperature high voltage resistant antiscour valve according to claim 1 and valve seat combination structure, it is characterised in that:
Valve seat above-mentioned is to be formed on valve body ontology by Co base cemented carbide welding rod built-up welding.
4. the flap of high temperature high voltage resistant antiscour valve according to claim 1 and valve seat combination structure, it is characterised in that:
The aforementioned cylindrical structure of flap, outer diameter are cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821411549.XU CN209054141U (en) | 2018-08-30 | 2018-08-30 | A kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821411549.XU CN209054141U (en) | 2018-08-30 | 2018-08-30 | A kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209054141U true CN209054141U (en) | 2019-07-02 |
Family
ID=67048033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821411549.XU Expired - Fee Related CN209054141U (en) | 2018-08-30 | 2018-08-30 | A kind of flap of high temperature high voltage resistant antiscour valve and valve seat combination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209054141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118855809A (en) * | 2024-09-27 | 2024-10-29 | 新乡市华航航空液压设备有限公司 | An integrated filter for aircraft hydraulic system |
-
2018
- 2018-08-30 CN CN201821411549.XU patent/CN209054141U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118855809A (en) * | 2024-09-27 | 2024-10-29 | 新乡市华航航空液压设备有限公司 | An integrated filter for aircraft hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |