CN206130300U - Aerify type valve seal system - Google Patents
Aerify type valve seal system Download PDFInfo
- Publication number
- CN206130300U CN206130300U CN201621158259.XU CN201621158259U CN206130300U CN 206130300 U CN206130300 U CN 206130300U CN 201621158259 U CN201621158259 U CN 201621158259U CN 206130300 U CN206130300 U CN 206130300U
- Authority
- CN
- China
- Prior art keywords
- valve
- seal
- gas
- flow closure
- air
- 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.)
- Active
Links
Abstract
The utility model relates to an aerify type valve seal system, including aerifing rubber seal, vacuum pump, air extracting seal valve, pump, inflatable seal valve and relevant pipeline. It is sealed that this system not only is applicable to ordinary pipeline valve gate, more is applicable to the valve seal of vacuum pipe, and especially large -scale vacuum valve's (like air cooling island valve etc. ) is sealed, has good sealed effect, and easy operation has solved the sealed vacuity decreasing problem that does not sternly result in of conventional sealing method, the air cooling island problem of preventing frostbite to and the too big problem that can't open of front and back pressure differential.
Description
Technical field
The utility model belongs to various pipes system valve seal field, more particularly to Electric Factory Air-Cooling Island vacuum pipe valve
Field of sealing technology, specially a kind of Puffer-type valve seal system, solve vacuum pipe valve seal sternly do not cause vacuum decline,
The antifreeze problem of Air-Cooling Island, and Large Diameter Pipeline pipeline butterfly valve valve seal field.
Background technology
With the continuous maturation of power plant's Direct Air-Cooling Technology, and water resource is serious in short supply, particularly central and west regions,
Thermal power generation is all carrying out planning construction with Direct Air-cooled Unit.Due to Air-Cooling Island vacuum system caliber it is larger, each column branch line
Isolating valve is all butterfly valve, and the seal form of conventional butterfly valve has the shortcomings that poorly sealed and sealing ring needs Jing often to change.Work as valve
System vacuum can be reduced when poorly sealed, the antifreeze problem of air cooling is also had and is existed.For example, coagulate when needing to overhaul Air-Cooling Island part
Cannot be isolated during vapour device and be affected system vacuum.The each column branch when severe cold weather tubine group operation at part load
Pipeline will reserve minimum antifreeze flow to prevent air cooling tubes condenser heat exchanger tube bursting by freezing, will so increase Air-Cooling Island blower fan power consumption.
Conventional valve seal form, because valve both sides have pressure reduction, in Open valve, valve element stress is larger, valve
Open difficult；Sometimes for preventing valve from not opening, also little bypass pipe and by-passing valve to be installed in valve both sides.If valve needs Jing
Normally open, the parts such as also fragile valve sealing ring, sealing surface and valve machinery, electric device affect the use longevity of valve
Life.In water circuit system overhaul of the equipments, if separation valve door is poorly sealed, the waste of water resource is caused, then cannot be right when serious
Equipment is overhauled.
Therefore, if the defect of valve seal form can be solved, the overall service life of valve can not only be extended, can also be conveniently
Overhaul of the equipments, reduces the water resource waste of water piping system.If particularly air cooling vacuum line valve leak problem can be solved,
Then can conveniently overhaul, keep system vacuum, maintain steam turbine load and efficiency, can also solve the antifreeze problem of Air-Cooling Island.
The content of the invention
The purpose of this utility model is to provide a kind of valve seal system with good sealing effectiveness, simple to operate
System, to solve the poorly sealed caused vacuum of conventional hermetic mode problem, the antifreeze problem of Air-Cooling Island, and pressure reduction in front and back are declined
The excessive problem that cannot be opened.The purpose of this utility model is achieved through the following technical solutions：
A kind of Puffer-type valve seal system, the system includes valve body, valve element, gas-flow closure circle, air extracting seal valve, fills
Hermetic seal valve and pumping loading line；The gas-flow closure circle is arranged between valve body and valve element, and the connection of gas-flow closure circle is taken out
Gas loading line, the pumping loading line is divided into two bye-passes and connects air extracting seal valve and gas-flow closure valve respectively.
Further, the air extracting seal valve connects a vavuum pump by pipeline.
Further, the gas-flow closure valve connects an inflator pump by pipeline.
Further, the gas-flow closure circle is rubber inflating sealed ring.
The beneficial effects of the utility model are：
1）Solve conventional pipeline valve seal form exist it is poorly sealed, open difficult, sealing ring change frequently, valve
Life-span low problem.
2）The poorly sealed problem of Electric Factory Air-Cooling system large-scale vacuum pipeline valve can also be solved.
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
Description of the drawings
Fig. 1 is the utility model vacuum pipe Puffer-type valve seal system schematic.
Fig. 2 is the utility model malleation pipeline Puffer-type valve seal system schematic.
Reference：1. vavuum pump, 2. air extracting seal valve, 3. gas-flow closure valve, 4. inflator pump, is 5. evacuated loading line,
6. valve body, 7. gas-flow closure circle, 8. valve element.
Specific embodiment
As shown in Figure 1, 2, a kind of Puffer-type valve seal system, the system includes valve body 6, valve element 8, gas-flow closure circle
7th, air extracting seal valve 2, gas-flow closure valve 3 and pumping loading line 5；The gas-flow closure circle be arranged at valve body and valve element it
Between, gas-flow closure circle connection pumping loading line, the pumping loading line is divided into two bye-passes and connects air extracting seal respectively
Valve and gas-flow closure valve.Gas-flow closure circle 7 is pneumatic rubber seal circle.
Pneumatic rubber seal circle is arranged on valve body sealing surface, and by vacuumizing, the air in sealing ring is extracted, sealing
Circle is close on valve body sealing surface, occurs space between valve body and valve element, makes pressure before and after valve unanimously, be easy to valve body to rotate；
During valve closing, after valve element is closed in place, open gas-flow closure valve and air is poured into pneumatic rubber seal circle, fill valve body
Space and valve element between, it is ensured that sealing.Puffer-type valve seal system is installed in vacuum pipe needs addition one true
Empty pump 1, without the need for charger, under pipeline vacuum environment, is filled with air, filling valve body and valve automatically in pneumatic rubber seal circle
Space between core, it is ensured that sealing, internal vacuum is better, and sealing effectiveness is better.Inflation is installed in usual pressure pipeline
Type valve seal system is without the need for vavuum pump, it is only necessary to add an inflator pump 4, under pipeline positive pressure environment, pneumatic rubber seal
Air is automatically drained out in circle.
Embodiment 1
This example is applied to vacuum pipe Puffer-type valve seal system, due to being negative pressure in vacuum pipe, without the need for arranging
Inflator pump, after opening gas-flow closure valve, can inflate to sealing ring automatically.System schematic is as shown in Figure 1.The system includes vacuum
Pump 1, air extracting seal valve 2, gas-flow closure valve 3, inflation exhaust pipe 5, valve body 6, gas-flow closure circle 7, valve element 8.
This sealing system valve opening flow process is as follows：Before valve opening, first start vavuum pump 1, open air extracting seal valve 2,
Extract air in gas-flow closure circle 7 out, gas-flow closure circle 7 is separated and be close on valve body 6 with valve element 8, valve body 6 is produced with valve element 8
Raw space, valve element pressure at both sides is consistent, and opening valve makes valve element reach position.Air extracting seal valve 2 is closed, vavuum pump 1 is closed.
This sealing system valve closing flow process is as follows：Shutoff valve in front of the door first closes valve element 8 in place, opens gas-flow closure valve 3,
Due to being negative pressure in pipeline, air, the space filled up between valve body 6 and valve element 8, it is ensured that close are full of in gas-flow closure circle 7 automatically
Feng Xing, internal vacuum is better, and sealing effectiveness is better.
Embodiment 2
This example is applied to malleation pipeline Puffer-type valve seal system, due to being malleation in malleation pipeline, without the need for arranging
Vavuum pump, after opening air extracting seal valve, can automatically extract air in sealing ring out.System schematic is as shown in Figure 2.Air extracting seal valve
2nd, gas-flow closure valve 3, inflator pump 4, inflation exhaust pipe 5, valve body 6, gas-flow closure circle 7, valve element 8.
This sealing system valve opening flow process is as follows：Before valve opening, air extracting seal valve 2 is first opened, due to being in pipeline
Malleation, extracts air in gas-flow closure circle 7 out automatically, and gas-flow closure circle 7 is separated with valve element 8, and valve body 6 produces space, valve with valve element 8
Core pressure at both sides is consistent, and opening valve makes valve element reach position.Close air extracting seal valve 2.
This sealing system valve closing flow process is as follows：Shutoff valve in front of the door first closes valve element 8 in place, opens gas-flow closure valve 2
And start inflator pump 4, air, the space filled up between valve body 6 and valve element 8, it is ensured that sealing are full of into gas-flow closure circle 7.
Gas-flow closure valve 3 is closed, inflator pump 4 is closed.
Claims (4)
1. a kind of Puffer-type valve seal system, it is characterised in that：The system includes valve body, valve element, gas-flow closure circle, pumping
Sealing valve, gas-flow closure valve and pumping loading line；The gas-flow closure circle is arranged between valve body and valve element, gas-flow closure
Circle connection pumping loading line, the pumping loading line is divided into two bye-passes and connects air extracting seal valve and gas-flow closure respectively
Valve.
2. system according to claim 1, it is characterised in that：The air extracting seal valve connects a vacuum by pipeline
Pump.
3. system according to claim 1, it is characterised in that：The gas-flow closure valve connects an inflation by pipeline
Pump.
4. system according to claim 1, it is characterised in that：The gas-flow closure circle is pneumatic rubber seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158259.XU CN206130300U (en) | 2016-10-25 | 2016-10-25 | Aerify type valve seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158259.XU CN206130300U (en) | 2016-10-25 | 2016-10-25 | Aerify type valve seal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206130300U true CN206130300U (en) | 2017-04-26 |
Family
ID=58575953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621158259.XU Active CN206130300U (en) | 2016-10-25 | 2016-10-25 | Aerify type valve seal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206130300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109745A (en) * | 2019-06-19 | 2020-12-22 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Gate valve capable of realizing sealing by utilizing air pressure of cavity and vacuum pipeline with gate valve |
| CN114473414A (en) * | 2022-01-27 | 2022-05-13 | 西安微电子技术研究所 | Glass fiber laminated board gasket-screw combined vacuum adsorption structure and method |
-
2016
- 2016-10-25 CN CN201621158259.XU patent/CN206130300U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109745A (en) * | 2019-06-19 | 2020-12-22 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Gate valve capable of realizing sealing by utilizing air pressure of cavity and vacuum pipeline with gate valve |
| CN114473414A (en) * | 2022-01-27 | 2022-05-13 | 西安微电子技术研究所 | Glass fiber laminated board gasket-screw combined vacuum adsorption structure and method |
| CN114473414B (en) * | 2022-01-27 | 2023-06-02 | 西安微电子技术研究所 | Glass fiber laminated board gasket-screw combined vacuum adsorption structure and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107246284A (en) | A kind of shaft seal steam supply system of extra-supercritical unit containing electric heater | |
| CN206130300U (en) | Aerify type valve seal system | |
| CN102208217B (en) | Sealing structure for maintenance of helium circulator of high temperature gas-cooled reactor | |
| CN107068935A (en) | High aititude lithium cell protecting device | |
| CN101571141B (en) | Sealed water recovery system of feed pump | |
| CN201568738U (en) | Seal gas recycling device of expansion machine | |
| CN204126853U (en) | Residual heat of air compressor reclaims unit waterway structure | |
| CN112502976A (en) | Vacuum system for high-end photovoltaic module production and vacuumizing process thereof | |
| CN201802626U (en) | Oil supply system of screw compressor | |
| CN115056804A (en) | Vacuum magnetic suspension pipeline and vacuum maintaining method | |
| CN208950952U (en) | The sealing system of condensate pump | |
| CN111780570A (en) | Air cooling tower anti-freezing system after condensation extraction back reconstruction and working method thereof | |
| CN204827916U (en) | Water -cooling screw vacuum pump | |
| CN208578591U (en) | A kind of gland seal system improving starting efficiency | |
| CN204254945U (en) | A kind of air-conditioning refrigerant fills special service valve | |
| CN208578589U (en) | A kind of steam turbine gland system of overflow heat recovery cascade utilization | |
| CN206360772U (en) | The vented water-supplying chamber's construction package of engine | |
| CN107152875A (en) | A kind of Expanding Unit Element System Direct Air-cooled Unit system and control method | |
| CN206708400U (en) | Antifreeze isolating valve, antifreeze isolating valve equipment, air cooling tubes condenser and Air-Cooling Island | |
| CN107327324B (en) | Leakage detection method of ORC generator set with leakage detection device | |
| CN205247061U (en) | Cooling water circulation system | |
| CN100460747C (en) | Natural gas unloading system pipe network improving and released cold quantity utilizing technology | |
| CN206111466U (en) | Photovoltaic layer press EVA filter equipment | |
| CN212480239U (en) | Percolate passage structure with steam heating air supplement | |
| CN216922242U (en) | Steam leakage pipeline for main valve and adjusting valve rod of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |