CN103437977A - Back-pressure stopping energy-saving vacuum valve for vacuum pump - Google Patents
Back-pressure stopping energy-saving vacuum valve for vacuum pump Download PDFInfo
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- CN103437977A CN103437977A CN2013103649758A CN201310364975A CN103437977A CN 103437977 A CN103437977 A CN 103437977A CN 2013103649758 A CN2013103649758 A CN 2013103649758A CN 201310364975 A CN201310364975 A CN 201310364975A CN 103437977 A CN103437977 A CN 103437977A
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- vacuum
- valve
- back pressure
- vacuum pump
- check
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Abstract
A back-pressure stopping energy-saving vacuum valve for a vacuum pump comprises a pipeline body, a vacuum generator and a back-pressure check valve. The back-pressure check valve is arranged in an inner cavity in the middle of the pipeline body, the pipeline body is divided into an air inlet section pipeline and an air exhaust section pipeline by the back-pressure check valve, a compressed air inlet of the vacuum generator is communicated with a compressed air outlet of an air compressor, the air inlet end of the vacuum generator is communicated with the air inlet section pipeline, and the air exhaust end of the vacuum generator is communicated with the air exhaust section pipeline. The back-pressure stopping energy-saving vacuum valve is provided with the vacuum generator, so that when the vacuum pump is vacuumized to a certain degree, a vacuum degree stage needs to be kept, only the vacuum generator is operated, the vacuum pump is not operated, the vacuum degree of a sealed space can be kept by the vacuum generator, and the energy consumption of a motor of the vacuum pump is reduced.
Description
Technical field
The present invention relates to a kind of check of the back pressure for vacuum pump energy-saving vacuum valve, belong to the vacuum equipment technical field.
Background technique
Usually can be from confined space Exhaust Gas or equipment that the gas molecule number in space is constantly reduced call pumping equipment or vacuum pump.In vacuum technique, adopt various method at present, can obtain from atmospheric pressure 10
5pa to 10
-13pa, the wide pressure range that reaches 18 orders of magnitude.
Vacuum pump is when vacuumizing, after the gas of confined space is pumped to the degree of vacuum that to a certain degree makes confined space and reaches predefined value, vacuum pump need to continue operation to keep this degree of vacuum of confined space, because the power of motor of vacuum pump is generally larger, therefore for the degree of vacuum that maintains confined space, start 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 check of the back pressure for vacuum pump energy-saving vacuum valve.
For achieving the above object, the technical solution used in the present invention is: a kind of check of the back pressure for vacuum pump energy-saving vacuum valve comprises pipeline body, vacuum generator and back pressure check valve; Described back pressure check valve be located at described pipeline body middle part inner chamber and described pipeline body is divided into to 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 are spaced, and both all are installed on the inner chamber of described pipeline body; Described seal valve is comprised of valve head and valve rod; Described Returnning spring is sheathed on described valve rod, and an end of described Returnning spring and described support are against setting, and the other end arranges against described valve head rear end, and the front end of described valve head is against described seal ring setting.
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 front end of described valve head be shaped as a boss, 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 after being evacuated down to a certain degree, vacuum pump needs to maintain the degree of vacuum stage, can only move vacuum generator and not move vacuum pump, utilize vacuum generator to maintain the degree of vacuum of confined space, thereby reduce the consumption of vaccum pump motor to the energy;
?therefore 2, the present invention establishes the back pressure check valve at the exhaust port side of vacuum pump, and when vacuum pump shuts down, relief opening that can seal vacuum pump plays the effect of pressurize;
3, the present invention includes bellows, therefore can utilize the extensibility of bellows to dock easily gas exhaust piping and vacuum pump, and can utilize the elasticity of bellows and cushion the vibrations that vacuum pump causes, damage because of vibrations with the venting gas appliance of avoiding being connected with vacuum pump exhaust port.
The 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, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the present invention.
Embodiment: a kind of check of the back pressure for vacuum pump energy-saving vacuum valve
Shown in accompanying drawing 1, a kind of check of the back pressure for vacuum pump vacuum valve, comprise pipeline body 1, vacuum generator 2 and back pressure check valve 3; Described back pressure check valve 3 be located at described pipeline body middle part inner chamber and described pipeline body 1 is divided into to air inlet section pipeline 4 and exhaust section pipeline 5.Be that back pressure check valve 3 is separated into two-part in the inside of pipeline body 1 by pipeline body 1.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).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 spaced with seal ring 12, and both all are installed on the inner chamber of described pipeline body 1; Described seal valve 11 is comprised of valve head and valve rod; Described Returnning spring 10 is sheathed on described valve rod, and an end of described Returnning spring 10 and described support 9 are against setting, and the other end arranges against described valve head rear end.Described Returnning spring 10 is a Compress Spring, utilizes the tension force of Returnning spring 10, makes the front end of described valve head arrange against described seal ring 12.
For easy for installation, be preferred embodiment: described air inlet section pipeline 4 is bellows.Perhaps described exhaust section pipeline 5 is bellows.
Better for sealing effect, be preferred embodiment: the seal ring of described annular is provided with seal washer 13.
Easy for installation for seal washer 13, be preferred embodiment: described seal ring is provided with groove, and described seal washer 13 is embedded at described groove.
In order to guarantee the balance of valve head, be preferred embodiment: described carriage center is provided with spacing hole, and described valve rod is inserted in described spacing hole.
Better for sealing effect, be preferred embodiment: the front end of described valve head be shaped as a boss, the corresponding described boss of described seal ring arranges the recess of form fit.
Installation method: the suction port of vacuum pump is connected with space to be vacuumized, the relief opening of vacuum pump is connected with the air inlet section pipeline 4 of back pressure check vacuum valve, 5 of exhaust section pipelines connect gas exhaust pipings, and this gas exhaust piping can be the suction tude of the venting gas appliance of electronic semi-conductor's dust-free workshop for example.
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 that overcomes Returnning spring 10 shrinks Compress Spring 10, thereby opens seal valve 11, gas is passed through between seal valve 11 and seal ring 12, then from exhaust section pipeline 5, enter gas exhaust piping.Vacuum pump is after operation a period of time, the degree of vacuum in space to be vacuumized has reached requirement, at this moment close the motor of vacuum pump, due to the valve head that does not now have pressure-acting in seal valve 11, therefore Returnning spring 10 elongations, make the valve head of seal valve 11 withstand on described seal ring 12, make the gas of external environment not enter air inlet section pipeline 4 by exhaust section pipeline 5, thereby reach the effect of pressurize.Degree of vacuum when space to be vacuumized descends, 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 one sides, to exhaust section pipeline 5, move, thereby play the effect of the degree of vacuum in the space that remains to be vacuumized.
Above-described embodiment is only explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. the check of the back pressure for a vacuum pump energy-saving vacuum valve, is characterized in that: comprise pipeline body, vacuum generator and back pressure check valve; Described back pressure check valve be located at described pipeline body middle part inner chamber and described pipeline body is divided into to 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 are spaced, and both all are installed on the inner chamber of described pipeline body; Described seal valve is comprised of valve head and valve rod; Described Returnning spring is sheathed on described valve rod, and an end of described Returnning spring and described support are against setting, and the other end arranges against described valve head rear end, and the front end of described valve head is against described seal ring setting.
2. the check of the back pressure for vacuum pump energy-saving vacuum valve according to claim 1, it is characterized in that: described air inlet section pipeline is bellows.
3. the check of the back pressure for vacuum pump energy-saving vacuum valve according to claim 1, it is characterized in that: described exhaust section pipeline is bellows.
4. the check of the back pressure for vacuum pump energy-saving vacuum valve according to claim 1, it is characterized in that: the seal ring of described annular is provided with seal washer.
5. the check of the back pressure for vacuum pump energy-saving vacuum valve according to claim 4, it is characterized in that: described seal ring is provided with groove, and described seal washer is embedded at described groove.
6. the check of the back pressure for vacuum pump energy-saving vacuum valve according to claim 1, it is characterized in that: described carriage center is provided with spacing hole, and described valve rod is inserted in described spacing hole.
7. the check of the back pressure for vacuum pump energy-saving vacuum valve according to claim 1 is characterized in that: the front end of described valve head be shaped as a boss, 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 true CN103437977A (en) | 2013-12-11 |
| CN103437977B 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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Cited By (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 |
Cited By (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 |
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|---|---|
| CN103437977B (en) | 2015-12-16 |
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