CN103437977B - A kind of back pressure check energy-saving vacuum valve for vacuum pump - Google Patents
A kind of back pressure check energy-saving vacuum valve for vacuum pump Download PDFInfo
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- CN103437977B CN103437977B CN201310364975.8A CN201310364975A CN103437977B CN 103437977 B CN103437977 B CN 103437977B CN 201310364975 A CN201310364975 A CN 201310364975A CN 103437977 B CN103437977 B CN 103437977B
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- valve
- vacuum
- back pressure
- pressure check
- vacuum pump
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Abstract
For a back pressure check energy-saving vacuum valve for vacuum pump, comprise pipeline body, vacuum generator and back pressure check valve; Described back pressure check valve is located at the inner chamber at the middle part of described pipeline body and described pipeline body is divided into air inlet section pipeline and exhaust section pipeline; The compressed air inlet of described vacuum generator is communicated with the compressed air outlet of an air compressor, the suction port end of described vacuum generator and described air inlet section pipeline connection, the exhaust port side of described vacuum generator and described exhaust section pipeline connection.Because the present invention is provided with vacuum generator, therefore need to maintain the degree of vacuum stage when vacuum pump is evacuated down to a certain degree, can an operation vacuum generator and do not run vacuum pump, utilize vacuum generator to maintain the degree of vacuum of confined space, thus reduce vaccum pump motor to the consumption of the energy.
Description
Technical field
The present invention relates to a kind of back pressure check energy-saving vacuum valve for vacuum pump, belong to technical field of vacuum equipment.
Background technique
Usually Exhaust Gas or the equipment that makes the gas molecule number in space constantly reduce calling pumping equipment or vacuum pump from confined space.At present in vacuum technique, adopt various diverse ways, can obtain from atmospheric pressure 10
5pa is to 10
-13pa, the wide pressure range reaching 18 orders of magnitude.
Vacuum pump is when vacuumizing, after the gas of confined space is pumped to and to a certain degree makes the degree of vacuum of confined space reach predefined value, vacuum pump needs to continue to run with this degree of vacuum keeping confined space, power of motor due to vacuum pump is general comparatively large, therefore starts to maintain the degree of vacuum of confined space the meaningless consumption that vacuum pump can cause the energy.
Summary of the invention
The object of the invention is to provide a kind of back pressure check energy-saving vacuum valve for vacuum pump.
For achieving the above object, the technical solution used in the present invention is: a kind of back pressure check energy-saving vacuum valve for vacuum pump, comprises pipeline body, vacuum generator and back pressure check valve; Described back pressure check valve is located at the inner chamber at the middle part of described pipeline body and described pipeline body is divided into air inlet section pipeline and exhaust section pipeline; The compressed air inlet of described vacuum generator is communicated with the compressed air outlet of an air compressor, the suction port end of described vacuum generator and described air inlet section pipeline connection, the exhaust port side of described vacuum generator and described exhaust section pipeline connection; Described back pressure check valve comprises support, the seal ring of Returnning spring, seal valve and annular; Described support and seal ring interval are arranged, and both are all installed on the inner chamber of described pipeline body; Described seal valve is made up of valve head and valve rod; Described Returnning spring is sheathed on described valve rod, and one end of described Returnning spring and described support are against setting, and the other end is arranged against described valve head rear end, and the front end of described valve head is arranged against described seal ring.
Preferred technological scheme is: described air inlet section pipeline is bellows.
Preferred technological scheme is: described exhaust section pipeline is bellows.
Preferred technological scheme is: the seal ring of described annular is provided with seal washer.
Preferred technological scheme is: described seal ring is provided with groove, and described seal washer is embedded at described groove.
Preferred technological scheme is: described carriage center is provided with spacing hole, and described valve rod is inserted in described spacing hole.
Preferred technological scheme is: the shape of the front end of described valve head is a boss, and the corresponding described boss of described seal ring arranges the recess of form fit.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, the present invention is provided with vacuum generator, therefore need to maintain the degree of vacuum stage when vacuum pump is evacuated down to a certain degree, can an operation vacuum generator and do not run vacuum pump, utilize vacuum generator to maintain the degree of vacuum of confined space, thus reduce vaccum pump motor to the consumption of the energy;
2, the present invention establishes back pressure check valve at the exhaust port side of vacuum pump, therefore when vacuum pump shuts down, the relief opening of seal vacuum pump can play the effect of pressurize;
3, the present invention includes bellows, therefore the extensibility of bellows can be utilized to dock gas exhaust piping and vacuum pump easily, and the elasticity of bellows can be utilized and the vibrations that buffer vacuum pump causes, damage because of vibrations to avoid the venting gas appliance be connected with vacuum pump exhaust port.
Accompanying drawing explanation
Accompanying drawing 1 is schematic diagram of the present invention.
Accompanying drawing 2 is a kind of embodiment schematic diagram of valve head.
In above accompanying drawing: 1, pipeline body; 2, vacuum generator; 3, back pressure check valve; 4, air inlet section pipeline; 5, exhaust section pipeline; 6, compressed air inlet; 7, suction port end; 8, exhaust port side; 9, support; 10, Returnning spring; 11, seal valve; 12, seal ring; 13, seal washer.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
Embodiment: a kind of back pressure check energy-saving vacuum valve for vacuum pump
Shown in accompanying drawing 1, a kind of back pressure check vacuum valve for vacuum pump, comprises pipeline body 1, vacuum generator 2 and back pressure check valve 3; Described back pressure check valve 3 is located at the inner chamber at the middle part of described pipeline body and described pipeline body 1 is divided into air inlet section pipeline 4 and exhaust section pipeline 5.Namely pipeline body 1 is separated into two-part in the inside of pipeline body 1 by back pressure check valve 3.Described vacuum generator 2 is common vacuum generator, and it has three interfaces, i.e. compressed air inlet 6, suction port end 7 and exhaust port side 8.
The compressed air inlet 6 of described vacuum generator 2 is communicated with the compressed air outlet of an air compressor (not shown).Namely air compressor provides power source to vacuum generator.The suction port end 7 of described vacuum generator 2 is communicated with described air inlet section pipeline 4, and the exhaust port side 8 of described vacuum generator 2 is communicated with described exhaust section pipeline 5.Vacuum generator 2 is equivalent to a bypass and is connected on pipeline body 1.
Described back pressure check valve 3 comprises support 9, the seal ring 12 of Returnning spring 10, seal valve 11 and annular; Described 9 framves and seal ring 12 interval are arranged, and both are all installed on the inner chamber of described pipeline body 1; Described seal valve 11 is made up of valve head and valve rod; Described Returnning spring 10 is sheathed on described valve rod, and one end of described Returnning spring 10 and described support 9 are against setting, and the other end is arranged against described valve head rear end.Described Returnning spring 10 is a Compress Spring, utilizes the tension force of Returnning spring 10, and the front end of described valve head is arranged against described seal ring 12.
In order to easy for installation, be preferred embodiment: described air inlet section pipeline 4 is bellows.Or described exhaust section pipeline 5 is bellows.
In order to sealing effect is better, be preferred embodiment: the seal ring of described annular is provided with seal washer 13.
In order to seal washer 13 is easy for installation, be preferred embodiment: described seal ring is provided with groove that described seal washer 13 is embedded at described groove.
In order to ensure the balance of valve head, be preferred embodiment: described carriage center is provided with spacing hole, described valve rod is inserted in described spacing hole.
In order to sealing effect is better, be preferred embodiment: the shape of the front end of described valve head is a boss that the corresponding described boss of described seal ring arranges the recess of form fit.
Installation method: suction port and the spatial joins to be vacuumized of vacuum pump, the relief opening of vacuum pump is then connected with the air inlet section pipeline 4 of back pressure check vacuum valve, exhaust section pipeline 5 connects a gas exhaust piping, and this gas exhaust piping can be the suction tude of the venting gas appliance of such as electronic semi-conductor's dust-free workshop.
Using method: open vacuum pump, the gas in space to be vacuumized enters vacuum pump from the suction port of vacuum pump, and go out from the relief opening of vacuum pump, arrive the air inlet section pipeline 4 of back pressure check vacuum valve, gas pressure is in the valve head of seal valve 11, and the tension force overcoming Returnning spring 10 makes Compress Spring 10 shrink, thus opens seal valve 11, gas is passed through between seal valve 11 and seal ring 12, then enters gas exhaust piping from exhaust section pipeline 5.After vacuum pump runs a period of time, the degree of vacuum in space to be vacuumized reaches requirement, at this moment the motor of vacuum pump is closed, due to the valve head now not having pressure to act on seal valve 11, therefore Returnning spring 10 extends, the valve head of seal valve 11 is withstood on described seal ring 12, makes the gas of external environment can not enter air inlet section pipeline 4 by exhaust section pipeline 5, thus reach the effect of pressurize.Degree of vacuum when space to be vacuumized declines, but when fall is little, opens air compressor, makes pressurized air enter vacuum generator 2 from the compressed air inlet 6 of vacuum generator 2.Under compressed-air actuated effect, be present in the gas of air inlet section pipeline 4 side, then move to exhaust section pipeline 5, thus play the effect of the degree of vacuum in the space remaining to be vacuumized.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1., for a back pressure check energy-saving vacuum valve for vacuum pump, it is characterized in that: comprise pipeline body, vacuum generator and back pressure check valve; Described back pressure check valve is located at the inner chamber at the middle part of described pipeline body and described pipeline body is divided into air inlet section pipeline and exhaust section pipeline; The compressed air inlet of described vacuum generator is communicated with the compressed air outlet of an air compressor, the suction port end of described vacuum generator and described air inlet section pipeline connection, the exhaust port side of described vacuum generator and described exhaust section pipeline connection; Described back pressure check valve comprises support, the seal ring of Returnning spring, seal valve and annular; Described support and seal ring interval are arranged, and both are all installed on the inner chamber of described pipeline body; Described seal valve is made up of valve head and valve rod; Described Returnning spring is sheathed on described valve rod, and one end of described Returnning spring and described support are against setting, and the other end is arranged against described valve head rear end, and the front end of described valve head is arranged against described seal ring.
2. the back pressure check energy-saving vacuum valve for vacuum pump according to claim 1, is characterized in that: described air inlet section pipeline is bellows.
3. the back pressure check energy-saving vacuum valve for vacuum pump according to claim 1, is characterized in that: described exhaust section pipeline is bellows.
4. the back pressure check energy-saving vacuum valve for vacuum pump according to claim 1, is characterized in that: the seal ring of described annular is provided with seal washer.
5. the back pressure check energy-saving vacuum valve for vacuum pump according to claim 4, it is characterized in that: described seal ring is provided with groove, described seal washer is embedded at described groove.
6. the back pressure check energy-saving vacuum valve for vacuum pump according to claim 1, it is characterized in that: described carriage center is provided with spacing hole, described valve rod is inserted in described spacing hole.
7. the back pressure check energy-saving vacuum valve for vacuum pump according to claim 1, is characterized in that: the shape of the front end of described valve head is a boss, and the corresponding described boss of described seal ring arranges the recess of form fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310364975.8A CN103437977B (en) | 2013-08-21 | 2013-08-21 | A kind of back pressure check energy-saving vacuum valve for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310364975.8A CN103437977B (en) | 2013-08-21 | 2013-08-21 | A kind of back pressure check energy-saving vacuum valve for vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437977A CN103437977A (en) | 2013-12-11 |
| CN103437977B true CN103437977B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310364975.8A Active CN103437977B (en) | 2013-08-21 | 2013-08-21 | A kind of back pressure check energy-saving vacuum valve for vacuum pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120261A (en) * | 2020-02-18 | 2020-05-08 | 福建华佳彩有限公司 | Energy-saving device for vacuum pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4056334A (en) * | 1975-05-12 | 1977-11-01 | Fortune William S | Vacuum system |
| JPH05340355A (en) * | 1992-06-12 | 1993-12-21 | Nagashima Ika Kikai Kk | Vacuum pump |
| JP2007291936A (en) * | 2006-04-25 | 2007-11-08 | Sony Corp | Differential evacuation container |
| CN102490289A (en) * | 2011-11-30 | 2012-06-13 | 中山市利群精密实业有限公司 | Venting auxiliary structure for plastic mould |
| CN202628628U (en) * | 2012-06-04 | 2012-12-26 | 太仓奥科机械设备有限公司 | Vacuum generator |
| CN203404041U (en) * | 2013-08-21 | 2014-01-22 | 鑫隆电子（苏州）有限公司 | Back pressure non-return energy-saving valve for vacuum pump |
-
2013
- 2013-08-21 CN CN201310364975.8A patent/CN103437977B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4056334A (en) * | 1975-05-12 | 1977-11-01 | Fortune William S | Vacuum system |
| JPH05340355A (en) * | 1992-06-12 | 1993-12-21 | Nagashima Ika Kikai Kk | Vacuum pump |
| JP2007291936A (en) * | 2006-04-25 | 2007-11-08 | Sony Corp | Differential evacuation container |
| CN102490289A (en) * | 2011-11-30 | 2012-06-13 | 中山市利群精密实业有限公司 | Venting auxiliary structure for plastic mould |
| CN202628628U (en) * | 2012-06-04 | 2012-12-26 | 太仓奥科机械设备有限公司 | Vacuum generator |
| CN203404041U (en) * | 2013-08-21 | 2014-01-22 | 鑫隆电子（苏州）有限公司 | Back pressure non-return energy-saving valve for vacuum pump |
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| Publication number | Publication date |
|---|---|
| CN103437977A (en) | 2013-12-11 |
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