CN103629397B - Releasing pressure automatically blocked valve - Google Patents
Releasing pressure automatically blocked valve Download PDFInfo
- Publication number
- CN103629397B CN103629397B CN201310540254.8A CN201310540254A CN103629397B CN 103629397 B CN103629397 B CN 103629397B CN 201310540254 A CN201310540254 A CN 201310540254A CN 103629397 B CN103629397 B CN 103629397B
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- Prior art keywords
- valve
- main valve
- sealing
- automatically blocked
- releasing pressure
- Prior art date
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims description 33
- 230000000694 effects Effects 0.000 abstract description 16
- 239000012224 working solution Substances 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000000630 rising effect 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
- 230000008859 change 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of releasing pressure automatically blocked valve, including: main valve, described main valve includes 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 air inlet, and lower end is provided with gas outlet, is provided with spool in described main valve chamber；Auxiliary valve, described auxiliary valve includes auxiliary valve body, is provided with vertically arranged auxiliary valve pocket 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, is provided with valve ball in described auxiliary valve pocket.The releasing pressure automatically blocked valve of the present invention has the effect intercepting entrance vacuum system that the working solution of vacuum pump can be avoided to break through main valve, and it has compact conformation, compact, is easily installed the features such as use.
Description
Technical field
The present invention relates to the pressure release blocked valve of a kind of vacuum system, specifically, be provided 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 when preventing from stopping.
Background technology
Development along with modern science and technology, more and more using room temperature decompression method to complete in people's livelihood industries such as chemical and medicine industry food can only be by improving the work that temperature increase pressure completes, thus have also been introduced the use of pressure regulating equipment-----vacuum pump.
In the use field that this is new, the different equipment selected and method according to requirements also have the biggest difference, the most popular and relatively inexpensive method to be to use liquid-ring vacuum pump to complete this task.But it is in use to use liquid to complete system to be bled and compression process requirement as working solution due to liquid-ring vacuum pump; in actual use when needs are shut down or prominent when meeting the inevitably fault such as power failure; working solution in liquid-ring vacuum pump can under the effect of pressure differential moment rush in vacuum system, thus cause irreparable damage to use.
Current vacuum equipment manufacture both domestic and external and use producer have destructive phenomenon to eliminate this, all do substantial amounts of work, the products such as the simple blocked valve used such as the self-control of some producer and the automatic choke device of commercial type, all there is a disadvantage in above product, that is exactly the effect can played in 2 minutes that liquid-ring vacuum pump is shut down and block liquid reverse flow, but As time goes on, enter in vacuum system owing to the wettability of liquid existence itself causes liquid can break through obstruct under the power-assisted of pressure in a short period of time, this is also to cause a lot of vacuum system, the reason of vacuum equipment fault.Start to install the element such as stop valve, bypass valve in systems additional for these engineers and technicians and reduce the generation of fault.But the increase of element too increases the failure factor of system, and makes the simplest 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, including: main valve, described main valve includes 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 air inlet, and lower end is provided with gas outlet, is provided with spool in described main valve chamber；Auxiliary valve, described auxiliary valve includes auxiliary valve body, is provided with vertically arranged auxiliary valve pocket 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, is provided with valve ball in described auxiliary valve pocket.
Upper end air inlet connection vacuum system when releasing pressure automatically blocked valve according to the present invention uses, gas outlet, lower end connection vacuum pump.In a structure of the in-vention, when spool is up, seal described air inlet, when spool is descending, there is between described air inlet and gas outlet the passage connected；When valve ball is descending, seal described valve port, when valve ball is descending, there is between described valve port and pressure relief opening the passage of connection.Therefore, the effect of main valve is to open when liquid-ring vacuum pump and vacuum system normally work to provide the passage needed for suction, when there is shutting down phenomenon in time by pathway closure.The effect of auxiliary valve is the closedown bypass line when liquid-ring vacuum pump and vacuum system normally work, it is ensured that the air-tightness of vacuum system.Opening bypass line, the pressure in equalizing main when shutting down phenomenon and occurring, and be drawn out to outside system by the liquid in pipeline, main and auxiliary valve communicates and is connected to outside system.Work process is: when shutting down phenomenon and occurring owing to the working solution in vacuum pump is because of the pull of vacuum of vacuum system, rising and be back in main valve, spool has active force upwards, combines closely with the inner surface of main valve chamber, seals described air inlet.Workflow cannot flow to inside vacuum system, and now workflow can enter auxiliary valve along bypass path, upwards backs down valve ball, flows out from pressure relief opening, such that it is able to avoid working solution to break through obstruct under the effect of the pressure enter vacuum system.Therefore, the releasing pressure automatically blocked valve of the present invention has the effect intercepting entrance vacuum system that the working solution of vacuum pump can be avoided to break through main valve, and has compact conformation, compact, is easily installed the features such as use.
Releasing pressure automatically blocked valve according to the present invention also has a following additional technical feature:
Preferably, described spool includes when spool is up for sealing the sealing of described air inlet and the upper top to described sealing applying active force upwards.When vacuum pump work, sealing is descending under the draft effect of vacuum pump, forms the passage connected between air inlet with main valve chamber, and valve ball is conducted oneself with dignity and under draft effect at it, valve port described in tight seal.When phenomenon occurs shutting down in vacuum pump, up under sealing active force upwards (buoyancy to sealing of the elastic force of such as spring, working solution and the suction etc. of vacuum system), air inlet described in tight seal.
Preferably, described sealing is spheroid or the spheroid of spheroid structure, preferably hollow or spheroid structure.The height of valve body can be shortened while the power of liquid needed for using hollow spheroid can increase spherome surface long-pending namely minimizing closedown valve.
Preferably, described upper top includes lead and flexible member, and described lead upper end connects described sealing, and lower slide extend in described main valve, and described flexible member is connected between sealing and main valve, and is positioned at the lower end of described sealing；The preferred spring of described flexible member, spring housing is contained on described lead.When gas flows through valve body, the smooth spheroid outer surface close to spherical reduces the collision frequency of gas molecule.The effect of guide post makes spool be ensured with the repeatability at valve seal position, and flexible member both can be played a supporting role when main valve is opened, and instantaneous can push spool to sealing surface when main valve needs and closes simultaneously.When spool is descending, flexible member supports spool, in order to avoid gas outlet described in spool jams, the normal work of impact.
Preferably, described main valve chamber inside upper surface is circumferentially with gasket seal along described air inlet, and when spool rises, spool is in close contact with described gasket seal to seal described air inlet.
Preferably, described gasket seal is X-type gasket seal.X-type gasket seal is combined with spool and makes better tightness.
Preferably, described pressure relief opening is positioned at the lower section of described sealing and the horizontal plane of main valve chamber contact position.So, make the working solution flowing back in main valve chamber flow out through pressure relief opening, and reduce the working solution wettability effect to main valve body hermetic unit.
Preferably, described pressure relief opening is in same level with the lower surface of described sealing.So, keeping working solution that enough buoyancy can be provided to supply described sealing up until sealing described air inlet, can flow out through pressure relief opening when working solution upper surface rises to the bottom of sealing meanwhile, can reach again to reduce the effect of wettability.
Preferably, described auxiliary valve pocket is connected with the lower end of described main valve chamber.So, make working solution can flow out auxiliary valve pocket when being back in main valve chamber, valve ball is had thrust upwards, makes workflow flow out main valve body in time.
The releasing pressure automatically blocked valve of the present invention also has the advantage that
1, on the premise of not increasing power source, complete the partition with vacuum system when liquid-ring vacuum pump is shut down, and ensure long-time reliable use under this state.
2, compact conformation compact is easily installed use.
3, can effectively save resource after this valve being installed between vacuum system and liquid-ring vacuum pump and avoid the occurrence of the generation that vacuum system is endangered phenomenon simultaneously.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will be apparent from easy to understand, wherein from combining the accompanying drawings below description to embodiment:
Fig. 1 is the structural representation of the releasing pressure automatically blocked valve of the present invention.
Description of reference numerals: main valve body 10；Main valve chamber 11；Air inlet 12；Gas outlet 13；X-type gasket seal 14；Spool 20；Hollow spheroid 21；Lead 22；Spring 23；Auxiliary valve body 30；Auxiliary valve pocket 31；Valve port 32；Pressure relief opening 33；Valve ball 40.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, term " on ", D score, " interior ", " outward ", "left", "right", " vertically ", " level ", " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention rather than requires that therefore the present invention must be not considered as limiting the invention with specific azimuth configuration and operation.
In describing the invention, unless otherwise prescribed and limit, it should be noted that term " is installed ", " being connected ", " connection " should be interpreted broadly, such as, can be to be mechanically connected or electrical connection, can also be the connection of two element internals, can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, between two devices adjacent on equipment by process medium, the such as contact of Copper Foil, enamel-covered wire or adhesive plaster also referred to as " being connected " or " connection ".For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Being described a kind of releasing pressure automatically blocked valve of the embodiment of the present invention referring to Fig. 1, the releasing pressure automatically blocked valve of the present invention includes main valve, auxiliary valve.Described main valve includes main valve body 10, main valve chamber 11, air inlet 12, gas outlet 13, spool 20.Described auxiliary valve includes auxiliary valve body 30, auxiliary valve pocket 31, valve port 32, pressure relief opening 33, valve ball 40.
Main valve chamber 11 is located in main valve body 10.Air inlet 12 is located at the upper end of described main valve chamber 11, and air inlet 12 is connected with vacuum system.Gas outlet 13 is located at the lower end of main valve chamber 11, and gas outlet 13 is connected with vacuum pump.It is internal that spool 20 is located at described main valve chamber 11, and spool 20 includes when spool 20 is up for sealing the sealing of described air inlet 12 and the upper top to described sealing applying active force upwards.Sealing is hollow spheroid 21.Upper top includes lead 22 and spring 23, and described lead 22 upper end connects described sealing, and lower slide extend in described main valve body 10, and described spring 23 is sleeved on lead 22 and is connected between sealing and main valve body 10.When spool 20 is up, air inlet 12 described in both seals, when spool 20 is descending, between described air inlet 12 and gas outlet 13, there is the passage connected.Main valve chamber 11 inside upper surface is circumferentially with X-type gasket seal 14 along described air inlet 12, and when spool 20 rises, spool 20 and described X-type gasket seal 14 are in close contact to seal described air inlet 12.
Auxiliary valve pocket 31 is vertically arranged to be located in auxiliary valve body 30.Valve port 32 is located at the lower end of described auxiliary valve pocket 31, and valve port 32 is connected with the lower end of main valve chamber 11.Pressure relief opening 33 is located at the side of auxiliary valve pocket 31.Valve ball 40 is located in auxiliary valve pocket 31, when valve ball 40 is descending, seals described valve port 32, when valve ball 40 is descending, has the passage of connection between described valve port 32 and pressure relief opening 33.Described pressure relief opening 33 is in same level with the lower surface of described sealing, and the communication passage position of main valve and auxiliary valve determines the reliably working of auxiliary valve.The reliability of this pressure release blocked valve of spool 20 structures shape work.
In the releasing pressure automatically blocked valve of the embodiment of the present invention, the effect of main valve is to open when liquid-ring vacuum pump and vacuum system normally work to provide the passage needed for suction, when there is shutting down phenomenon in time by pathway closure.The effect of auxiliary valve is the closedown bypass line when liquid-ring vacuum pump and vacuum system normally work, it is ensured that the air-tightness of vacuum system.Opening bypass line, the pressure in equalizing main when shutting down phenomenon and occurring, and be drawn out to outside system by the liquid in pipeline, main and auxiliary valve communicates and is connected to outside system.Work process is: when shutting down phenomenon and occurring owing to the working solution in vacuum pump is because of the pull of vacuum of vacuum system, rising and be back in main valve, spool 20 has active force upwards, combines closely with the inner surface of main valve chamber 11, seals described air inlet 12.Workflow cannot flow to inside vacuum system, and now workflow can enter auxiliary valve along bypass path, upwards backs down valve ball 40, flows out from pressure relief opening 33, such that it is able to avoid working solution to break through obstruct under the effect of the pressure enter vacuum system.Therefore, the releasing pressure automatically blocked valve of the present invention has the effect intercepting entrance vacuum system that the working solution of vacuum pump can be avoided to break through main valve, and has compact conformation, compact, is easily installed the features such as use.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can carry out in the case of without departing from the principle of the present invention and objective multiple change, revise, replace and modification, the scope of the present invention is limited by claim and equivalent thereof.
Claims (9)
1. a releasing pressure automatically blocked valve, it is characterised in that including:
Main valve, described main valve includes 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 air inlet, and air inlet is connected with vacuum system, and lower end is provided with gas outlet, is provided with spool in described main valve chamber；
Auxiliary valve, described auxiliary valve includes auxiliary valve body, is provided with vertically arranged auxiliary valve pocket 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, is provided with valve ball in described auxiliary valve pocket；
Described spool includes when spool is up for sealing the sealing of described air inlet and the upper top to described sealing applying active force upwards；
Described pressure relief opening is positioned at the lower section of described sealing and the horizontal plane of main valve chamber contact position.
Releasing pressure automatically blocked valve the most according to claim 1, it is characterised in that described sealing is spheroid or spheroid structure.
Releasing pressure automatically blocked valve the most according to claim 2, it is characterised in that described sealing is spheroid or the spheroid structure of hollow.
Releasing pressure automatically blocked valve the most according to claim 1, it is characterized in that, described upper top includes lead and flexible member, described lead upper end connects described sealing, lower slide extend in described main valve, described flexible member is connected between sealing and main valve, and is positioned at the lower end of described sealing.
Releasing pressure automatically blocked valve the most according to claim 4, it is characterised in that described flexible member is spring, spring housing is contained on described lead.
Releasing pressure automatically blocked valve the most according to claim 1, it is characterised in that described main valve chamber inside upper surface is circumferentially with gasket seal along described air inlet, when spool rises, spool is in close contact with described pad to seal described air inlet.
Releasing pressure automatically blocked valve the most according to claim 6, it is characterised in that described gasket seal is X-type gasket seal.
Releasing pressure automatically blocked valve the most according to claim 1, it is characterised in that described pressure relief opening is in same level with the lower surface of described sealing.
Releasing pressure automatically blocked valve the most according to claim 1, it is characterised 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 CN103629397A (en) | 2014-03-12 |
| CN103629397B true CN103629397B (en) | 2016-10-26 |
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| 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 |
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Families Citing this family (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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09178096A (en) * | 1995-12-22 | 1997-07-11 | Aichi Koatsu Kk | Disaster corresponding type lp gas vessel valve |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN103629397A (en) | 2014-03-12 |
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Granted publication date: 20161026 |