CN103629397A - Automatic pressure leakage block valve - Google Patents
Automatic pressure leakage block valve Download PDFInfo
- Publication number
- CN103629397A CN103629397A CN201310540254.8A CN201310540254A CN103629397A CN 103629397 A CN103629397 A CN 103629397A CN 201310540254 A CN201310540254 A CN 201310540254A CN 103629397 A CN103629397 A CN 103629397A
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- China
- Prior art keywords
- valve
- main valve
- auxiliary
- sealed department
- spool
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 239000012224 working solution Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses an automatic pressure leakage block valve which comprises a main valve and an auxiliary valve. The main valve comprises a main valve body. A main valve cavity is formed in the main valve body, the upper end of the main valve cavity is provided with an air inlet, the lower end of the main valve cavity is provided with an air outlet and a valve element is arranged in the main valve cavity. The auxiliary valve comprises an auxiliary valve body. An auxiliary valve cavity is vertically formed in the auxiliary valve body. The lower end of the auxiliary valve cavity is provided with a valve opening. A pressure leakage opening is formed in a side of the auxiliary valve cavity, and the valve opening is communicated with the main valve cavity. A valve ball is arranged in the auxiliary valve cavity. The automatic pressure leakage block valve has the function of preventing working liquid of a vacuum pump from breaking through partition of the main valve and entering a vacuum system and has the advantages of being compact in structure, small in size, convenient to install and use and the like.
Description
Technical field
The present invention relates to a kind of pressure release blocked valve of vacuum system, specifically, be arranged between vacuum system and vacuum pump, in pump, working solution is back to the valve of system because of the pull of vacuum of system while preventing from stopping.
Background technique
Development along with modern science and technology, in people's livelihood industries such as chemical and medicine industry food, more and more adopting normal temperature decompression method to complete over can only be to increase by improving temperature the work that pressure completes, also introduce thus the use of a pressure regulating equipment-----vacuum pump.
In this new use field, the equipment that difference is according to requirements selected and method also have very large difference, and comparatively popular and comparatively economic method is to adopt liquid-ring vacuum pump to complete this task at present.But because liquid-ring vacuum pump is in use to complete system is bled and compression process requirement as working solution with liquid; in actual use when needs are shut down or while dashing forward inevitable faults such as meeting power failure; working solution in liquid-ring vacuum pump can be under the effect of pressure difference moment rush in vacuum system, thereby to use, cause irreparable damage.
Current vacuum equipment manufacture both domestic and external and use producer have destructive phenomenon in order to eliminate this, all done a large amount of work, as the simple and easy blocked valve of some producer's self-control use and the products such as automatic choke device of selling on the market, all there is a disadvantage in above product, that is exactly the effect that can play blocking-up liquid reverse flow in 2 minutes that shut down at liquid-ring vacuum pump, but As time goes on, the wettability existing due to liquid itself causes liquid under the power-assisted of pressure, to break through to intercept in a short period of time and enters in vacuum system, this is also to cause a lot of vacuum systems, the reason of vacuum equipment fault.Engineers and technicians start to install additional in system the generation that the elements such as cut-off valve, by-pass valve reduce fault for this reason.But the increase of element has also increased the failure factor of system, and make originally simple system become complicated.
Summary of the invention
Based on above-mentioned defect of the prior art, the applicant designs a kind of releasing pressure automatically blocked valve through great efforts.
To achieve these goals, the present invention proposes a kind of releasing pressure automatically blocked valve, comprising: main valve, and described main valve comprises main valve body, is provided with main valve chamber in main valve body, and the upper end of described main valve chamber is provided with suction port, and lower end is provided with air outlet, in described main valve chamber, is provided with spool; Auxiliary valve, described auxiliary valve comprises auxiliary valve body, is provided with the auxiliary valve pocket of vertical setting in auxiliary valve body, and the lower end of described auxiliary valve pocket is provided with valve port, and side is provided with pressure relief opening, and described valve port is connected with described main valve chamber, in described auxiliary valve pocket, is provided with valve ball.
While using according to releasing pressure automatically blocked valve of the present invention, upper end suction port is communicated with vacuum system, and air outlet, lower end is communicated with vacuum pump.In structure of the present invention, when spool is up, seal described suction port, when spool is descending, between described suction port and air outlet, there is the passage being communicated with; When valve ball is descending, seal described valve port, when valve ball is descending, between described valve port and pressure relief opening, there is the passage of connection.Therefore, the effect of main valve is that the passage that provides suction required is provided when the normal operation of liquid-ring vacuum pump and vacuum system, when occurring shutting down phenomenon in time by pathway closure.The effect of auxiliary valve is to close bypass line when liquid-ring vacuum pump and vacuum system normal operation, guarantees the tightness of vacuum system.When shutting down when phenomenon occurs, open bypass line, the pressure in equalizing main, and the liquid in pipeline is drawn out to outside system, main and auxiliary valve communicates and is connected to outside system.Working procedure is: when shutdown phenomenon occurs, due to the pull of vacuum of the working solution in vacuum pump because of vacuum system, rise and be back in main valve, spool has active force upwards, combines closely with the internal surface of main valve chamber, seals described suction port.Workflow cannot flow to vacuum system inside, and now workflow can enter auxiliary valve along bypass path, upwards backs down valve ball, from pressure relief opening, flows out, thereby can avoid working solution to break through obstruct under the effect of pressure, enters vacuum system.Therefore, releasing pressure automatically blocked valve of the present invention has the obstruct that can avoid the working solution of vacuum pump to break through main valve and enters the effect of vacuum system, and have compact structure, volume small and exquisite, the feature such as be convenient to install and use.
Releasing pressure automatically blocked valve according to the present invention also has following additional technical feature:
Preferably, described spool comprises when spool is up for sealing the sealed department of described suction port and described sealed department being applied to the upper top of active force upwards.When vacuum pump work, sealed department is descending under the draft effect of vacuum pump, forms the passage being communicated with between suction port and main valve chamber, valve ball under its deadweight and draft effect, valve port described in tight seal.When vacuum pump occur to be shut down phenomenon, the active force that sealed department makes progress (such as the elastic force of spring, working solution are to the suction of the buoyancy of sealed department and vacuum system etc.) is lower up, suction port described in tight seal.
Preferably, described sealed department is spheroid or spheroid structure, preferably spheroid or the spheroid structure of hollow.Use hollow spheroid can increase the height that can shorten valve body when spherome surface amasss the power that namely reduces the required liquid of throttle down.
Preferably, described upper top comprises directional post and elastic element, and described directional post upper end connects described sealed department, slides and extend in described main valve in bottom, and described elastic element is connected between sealed department and main valve, and is positioned at the lower end of described sealed department; The preferred spring of described elastic element, spring housing is contained on described directional post.Gas flow, when valve body, reduces the collision frequency of gas molecule close to the smooth spheroid outer surface of spherical.The effect of guide rod is guaranteed the repeatability at spool and valve seal position, and elastic element both can be played a supporting role when main valve is opened, and can instantaneously push spool to sealing surface when main valve need to be closed simultaneously.When spool is descending, elastic element supports spool, in order to avoid spool stops up described air outlet, and impact normal operation.
Preferably, described main valve chamber inside upper surface is circumferentially with gasket seal along described suction port, and when spool rises, spool and described gasket seal close contact are to seal described suction port.
Preferably, described gasket seal is X-type gasket seal.X-type gasket seal is combined and is made better tightness with spool.
Preferably, described pressure relief opening is positioned at the below of the horizontal plane of described sealed department and main valve chamber contacting point.Like this, the working solution entering in main valve chamber that makes to reflux flows out through pressure relief opening, and reduces the wettability effect of working solution to main valve body hermetic unit.
Preferably, the lower surface of described pressure relief opening and described sealed department is in same level.Like this, keep working solution can provide enough buoyancy up until seal described suction port for described sealed department,, when working solution upper surface rises to the bottom of sealed department, can flow out through pressure relief opening meanwhile, can reach again the effect that reduces wettability.
Preferably, described auxiliary valve pocket is connected with the lower end of described main valve chamber.Like this, while making working solution be back in main valve chamber, can flow out auxiliary valve pocket, valve ball is had to thrust upwards, make workflow flow out in time main valve body.
Releasing pressure automatically blocked valve of the present invention also has the following advantages:
When 1, completing liquid-ring vacuum pump shut down under the prerequisite that does not increase power source, with the partition of vacuum system, and guarantee long-time reliable use under this state.
2, small and exquisite being convenient to of compact structure volume installed and used.
3, effectively saving resource is installed after this valve between vacuum system and liquid-ring vacuum pump and is avoided occurring the generation to the harm phenomenon of vacuum system simultaneously.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:
Fig. 1 is the structural representation of releasing pressure automatically blocked valve of the present invention.
Description of reference numerals: main valve body 10; Main valve chamber 11; Suction port 12; Air outlet 13; X-type gasket seal 14; Spool 20; Hollow spheroid 21; Directional post 22; Spring 23; Auxiliary valve body 30; Auxiliary valve pocket 31; Valve port 32; Pressure relief opening 33; Valve ball 40.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " on ", orientation or the position relationship of the indication such as D score, " interior ", " outward ", " left side ", " right side ", " vertically ", " level ", " top ", " end " be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description rather than require the present invention with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In description of the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, on equipment between adjacent two devices by process medium, for example the contact of Copper Foil, enameled cable or adhesive plaster is also referred to as " being connected " or " connection ".For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Below with reference to Fig. 1, a kind of releasing pressure automatically blocked valve of the embodiment of the present invention is described, releasing pressure automatically blocked valve of the present invention comprises main valve, auxiliary valve.Described main valve comprises main valve body 10, main valve chamber 11, suction port 12, air outlet 13, spool 20.Described auxiliary valve comprises auxiliary valve body 30, auxiliary valve pocket 31, valve port 32, pressure relief opening 33, valve ball 40.
In the releasing pressure automatically blocked valve of the embodiment of the present invention, the effect of main valve is that the passage that provides suction required is provided when the normal operation of liquid-ring vacuum pump and vacuum system, when occurring shutting down phenomenon in time by pathway closure.The effect of auxiliary valve is to close bypass line when liquid-ring vacuum pump and vacuum system normal operation, guarantees the tightness of vacuum system.When shutting down when phenomenon occurs, open bypass line, the pressure in equalizing main, and the liquid in pipeline is drawn out to outside system, main and auxiliary valve communicates and is connected to outside system.Working procedure is: when shutdown phenomenon occurs, due to the pull of vacuum of the working solution in vacuum pump because of vacuum system, rise and be back in main valve, spool 20 has active force upwards, combines closely with the internal surface of main valve chamber 11, seals described suction port 12.Workflow cannot flow to vacuum system inside, and now workflow can enter auxiliary valve along bypass path, upwards backs down valve ball 40, from pressure relief opening 33, flows out, thereby can avoid working solution to break through obstruct under the effect of pressure, enters vacuum system.Therefore, releasing pressure automatically blocked valve of the present invention has the obstruct that can avoid the working solution of vacuum pump to break through main valve and enters the effect of vacuum system, and have compact structure, volume small and exquisite, the feature such as be convenient to install and use.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is limited by claim and equivalent thereof.
Claims (9)
1. a releasing pressure automatically blocked valve, is characterized in that, comprising:
Main valve, described main valve comprises main valve body, is provided with main valve chamber in main valve body, and the upper end of described main valve chamber is provided with suction port, and lower end is provided with air outlet, in described main valve chamber, is provided with spool;
Auxiliary valve, described auxiliary valve comprises auxiliary valve body, is provided with the auxiliary valve pocket of vertical setting in auxiliary valve body, and the lower end of described auxiliary valve pocket is provided with valve port, and side is provided with pressure relief opening, and described valve port is connected with described main valve chamber, in described auxiliary valve pocket, is provided with valve ball.
2. releasing pressure automatically blocked valve according to claim 1, is characterized in that, described spool comprises when spool is up for sealing the sealed department of described suction port and described sealed department being applied to the upper top of active force upwards.
3. releasing pressure automatically blocked valve according to claim 2, is characterized in that, described sealed department is spheroid or spheroid structure, preferably spheroid or the spheroid structure of hollow.
4. releasing pressure automatically blocked valve according to claim 2, it is characterized in that, described upper top comprises directional post and elastic element, described directional post upper end connects described sealed department, slide and extend in described main valve in bottom, described elastic element is connected between sealed department and main valve, and is positioned at the lower end of described sealed department; The preferred spring of described elastic element, spring housing is contained on described directional post.
5. releasing pressure automatically blocked valve according to claim 1, is characterized in that, described main valve chamber inside upper surface is circumferentially with gasket seal along described suction port, and when spool rises, spool and described pad close contact are to seal described suction port.
6. releasing pressure automatically blocked valve according to claim 5, is characterized in that, described gasket seal is X-type gasket seal.
7. releasing pressure automatically blocked valve according to claim 2, is characterized in that, described pressure relief opening is positioned at the below of the horizontal plane of described sealed department and main valve chamber contacting point.
8. releasing pressure automatically blocked valve according to claim 2, is characterized in that, the lower surface of described pressure relief opening and described sealed department is in same level.
9. releasing pressure automatically blocked valve according to claim 1, is characterized in that, described auxiliary valve pocket is connected with the lower end of described main valve chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310540254.8A CN103629397B (en) | 2013-11-05 | 2013-11-05 | Releasing pressure automatically blocked valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310540254.8A CN103629397B (en) | 2013-11-05 | 2013-11-05 | Releasing pressure automatically blocked valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103629397A true CN103629397A (en) | 2014-03-12 |
| CN103629397B CN103629397B (en) | 2016-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310540254.8A Expired - Fee Related CN103629397B (en) | 2013-11-05 | 2013-11-05 | Releasing pressure automatically blocked valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629397B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351580A (en) * | 2015-12-09 | 2016-02-24 | 淄博沃达真空设备有限公司 | Automatic double-clip type block balance valve |
| CN109916564A (en) * | 2019-04-23 | 2019-06-21 | 杭州铭铄机电科技有限公司 | Shell detection device for water-cooled machine detection |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260930Y (en) * | 1996-04-19 | 1997-08-27 | 王有新 | Automatic non-return valve |
| EP0780612B1 (en) * | 1995-12-22 | 2000-03-22 | Aichi Koatsu Co., Ltd. | LP gas container valve against disasters |
| CN1272913A (en) * | 1998-06-17 | 2000-11-08 | 尤卡有限责任公司 | Valve combination for vibration pumps |
| CN2622504Y (en) * | 2003-05-28 | 2004-06-30 | 淄博真空设备厂有限公司 | One-way valve for vacuum system |
| CN2793466Y (en) * | 2005-04-18 | 2006-07-05 | 无锡市四方真空设备有限公司 | Liquid-resistant valve |
| CN201909073U (en) * | 2011-01-22 | 2011-07-27 | 江苏鼎泽环境工程有限公司 | Roots blower safety valve |
| CN202209452U (en) * | 2011-08-17 | 2012-05-02 | 永一阀门集团有限公司 | Safety inverted valve |
| CN203614815U (en) * | 2013-11-05 | 2014-05-28 | 马兆良 | Automatic pressure relief blocking valve |
-
2013
- 2013-11-05 CN CN201310540254.8A patent/CN103629397B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0780612B1 (en) * | 1995-12-22 | 2000-03-22 | Aichi Koatsu Co., Ltd. | LP gas container valve against disasters |
| CN2260930Y (en) * | 1996-04-19 | 1997-08-27 | 王有新 | Automatic non-return valve |
| CN1272913A (en) * | 1998-06-17 | 2000-11-08 | 尤卡有限责任公司 | Valve combination for vibration pumps |
| CN2622504Y (en) * | 2003-05-28 | 2004-06-30 | 淄博真空设备厂有限公司 | One-way valve for vacuum system |
| CN2793466Y (en) * | 2005-04-18 | 2006-07-05 | 无锡市四方真空设备有限公司 | Liquid-resistant valve |
| CN201909073U (en) * | 2011-01-22 | 2011-07-27 | 江苏鼎泽环境工程有限公司 | Roots blower safety valve |
| CN202209452U (en) * | 2011-08-17 | 2012-05-02 | 永一阀门集团有限公司 | Safety inverted valve |
| CN203614815U (en) * | 2013-11-05 | 2014-05-28 | 马兆良 | Automatic pressure relief blocking valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351580A (en) * | 2015-12-09 | 2016-02-24 | 淄博沃达真空设备有限公司 | Automatic double-clip type block balance valve |
| CN109916564A (en) * | 2019-04-23 | 2019-06-21 | 杭州铭铄机电科技有限公司 | Shell detection device for water-cooled machine detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103629397B (en) | 2016-10-26 |
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Granted publication date: 20161026 |
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