CN105782718A - Multi-level supercharging waste gas recycling system - Google Patents

Multi-level supercharging waste gas recycling system Download PDF

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Publication number
CN105782718A
CN105782718A CN201610278159.9A CN201610278159A CN105782718A CN 105782718 A CN105782718 A CN 105782718A CN 201610278159 A CN201610278159 A CN 201610278159A CN 105782718 A CN105782718 A CN 105782718A
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CN
China
Prior art keywords
gas
compress cell
recovery system
pressure
booster
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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.)
Pending
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CN201610278159.9A
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Chinese (zh)
Inventor
徐中华
张明德
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Langevin Automatic Control Equipment (shanghai) Ltd By Share Ltd
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Langevin Automatic Control Equipment (shanghai) Ltd By Share Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201610278159.9A priority Critical patent/CN105782718A/en
Publication of CN105782718A publication Critical patent/CN105782718A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • F17D1/02Pipe-line systems for gases or vapours
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00Arrangements for supervising or controlling working operations
    • F17D3/01Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product

Abstract

The invention provides a multi-level supercharging waste gas recycling system used for recycling high-pressure waste gas of gas utilization equipment. The multi-level supercharging waste gas recycling system comprises a waste gas recycling unit and at least two levels of supercharging units. An exhaust pipe opening of the gas utilization equipment communicates with an inlet of the waste gas recycling unit through a first one-way valve. An outlet of the waste gas recycling unit communicates with an inlet of the first-level supercharging unit through a second one-way valve. An outlet of the first-level supercharging unit communicates with an inlet of the second-level supercharging unit. The first-level supercharging unit and the second-level supercharging unit supercharge gas flowing into the first-level supercharging unit and the second-level supercharging unit. According to the multi-level supercharging waste gas recycling system, the high-pressure waste gas produced by the gas utilization equipment is recycled, the recycled high-pressure gas can achieve multiple different gas pressures, and therefore recycling of waste gas of the gas utilization equipment different in work gas pressure can be achieved.

Description

Multi-stage booster gas recovery system
Technical field
The invention belongs to field of mechanical technique, relate to a kind of multi-stage booster gas recovery system.
Background technology
In industrial processes; often have the various gas equipment needing pressure-air; these equipment are in use; produce pressure-air typically via air compressor and export to gas equipment; gas equipment, after the pressure-air having utilized air compressor supply to come, can be directly discharged in outside air.
Article one, industrial production line is at the beginning of design, and often the air compressor according to the quantity buying appropriate size of gas equipment to provide pressure-air to these gas equipments.But in actual production process, enterprise can expand the scale of production according to market situation, cause that gas equipment quantity can substantially increase, beyond the upper limit of the gas equipment quantity at the beginning of design, at this moment, existing air compressor is likely to the pressure-air that cannot provide enough pressure to ensure the normal use of every gas equipment, therefore, need to purchase the air compressor of new bigger specification, on the one hand, cause that enterprise is greatly increased in the purchase cost of equipment;On the other hand, the air compressor of bigger specification also can dramatically increase on power, causes that the electric cost of enterprise increases, causes the waste of electric power resource.It is thus desirable to the high pressure exhaust gas for gas equipment generation recycles.
For different gas equipments, the gas pressure of its job demand is also not quite similar, so needing a kind of recovery system providing multiple gases pressure, is supplied to different gas equipments after high pressure exhaust gas is reclaimed.
Summary of the invention
It is an object of the invention to provide a kind of multi-stage booster gas recovery system, during to solve gas equipment quantity increase in prior art, the cost that replacing air compressor causes increases the problem with energy waste, and nows provide the multiple gases pressure multi-stage booster gas recovery system for different gas equipments in fact.
For solving above-mentioned technical problem, technical scheme provided by the invention is as follows:
The invention provides a kind of multi-stage booster gas recovery system, the high pressure exhaust gas of gas equipment is reclaimed, including waste heat recovery unit and at least two-step supercharging unit,
The exhaust pipe mouth of described gas equipment is connected with the entrance of described waste heat recovery unit by the first check valve;
The outlet of described waste heat recovery unit is connected by the entrance of the second check valve with first order compress cell;
The outlet of described first order compress cell connects with the entrance of second level compress cell;
The gas flowing into self is carried out supercharging by described first order compress cell and described second level compress cell respectively.
Further, described first order compress cell includes the first supercharger and the first booster jar, and the gas in described first booster jar is carried out supercharging by described first supercharger;
Described second level compress cell includes the second supercharger and the second booster jar, and the gas in described second booster jar is carried out supercharging by described second supercharger;
The outlet of described first order compress cell connects with the entrance of second level compress cell.
Further, described first order compress cell and second level compress cell all also include electro connecting pressure gauge, described electro connecting pressure gauge is connected with described first booster jar and the second booster jar respectively, for measuring the gas pressure in described first compress cell and described second compress cell.
Further, described first order compress cell also includes the safety exhaust pipeline connected with described first booster jar, described blow-off pipe is provided with electromagnetic valve and deafener, and described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline;
Further, described second level compress cell also includes the safety exhaust pipeline connected with described second booster jar, described blow-off pipe is provided with electromagnetic valve and deafener, and described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
Further, described waste heat recovery unit includes waste gas air accumulator, measures the electro connecting pressure gauge of gas pressure in described waste gas air accumulator.
Further, described waste heat recovery unit also includes reclaiming compress cell, and the gas in described waste gas air accumulator is carried out supercharging by described recovery compress cell.
Further, described waste heat recovery unit also includes the safety exhaust pipeline connected with described waste gas air accumulator, described blow-off pipe is provided with electromagnetic valve and deafener, and described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
Further, the gas tube orifice that enters of described gas equipment connects with high-pressure air source.
Further, the exhaust pipe mouth of described gas equipment is connected with ambient atmosphere by a safety exhaust pipeline, and described blow-off pipe is provided with electromagnetic valve and deafener, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
Further, the outlet of described second level compress cell connects with the gas tube orifice that enters of described gas equipment.
Further, the quantity of described gas equipment is multiple, the exhaust pipe mouth of each described gas equipment is respectively connected with the entrance of described waste heat recovery unit by a check valve, and the outlet of described first order compress cell is respectively connected from the gas tube orifice that enters of different gas equipments by a check valve respectively with the outlet of described second level compress cell.
Further, described gas equipment is the double bolloon fast press of formula vacuum, and the described double bolloon fast press of formula vacuum has upper gasbag and lower gasbag, the control air pressure in described lower gasbag more than the control air pressure in described upper gasbag,
The outlet of described first order compress cell connects with the gas tube orifice that enters of described upper gasbag;
The outlet of described second level compress cell connects with the gas tube orifice that enters of described lower gasbag.
Compared with prior art, present invention have an advantage that
A kind of multi-stage booster gas recovery system provided by the invention, on the one hand, achieve the recycling to the high pressure exhaust gas that gas equipment produces, effectively solve in prior art, when gas equipment increases, need to change the problem of the production cost rising that high-power air compressor machine causes, and save the energy;On the other hand, the gases at high pressure after recovery can realize multiple different air pressure, such that it is able to the waste gas recovery meeting the gas equipment of different operating air pressure utilizes.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of multi-stage booster gas recovery system provided by the invention.
Detailed description of the invention
A kind of multi-stage booster gas recovery system present invention proposed below in conjunction with the drawings and specific embodiments is described in further detail.According to the following describes and claims, advantages and features of the invention will be apparent from.It should be noted that, accompanying drawing all adopts the form simplified very much and all uses non-ratio accurately, only in order to convenience, the purpose aiding in illustrating the embodiment of the present invention lucidly.
The invention provides a kind of multi-stage booster gas recovery system, the high pressure exhaust gas of gas equipment 1 is reclaimed, including waste heat recovery unit 2 and at least two-step supercharging unit,
The exhaust pipe mouth of described gas equipment 1 is connected with the entrance of described waste heat recovery unit 2 by the first check valve 10;10, described first check valve allows gas to flow into described waste heat recovery unit 2 from the exhaust pipe mouth of gas equipment 1;
The outlet of described waste heat recovery unit 2 is connected by the entrance of the second check valve 20 with described first order compress cell 3;20, described second check valve allows gas to flow into described first order compress cell 3 from described waste heat recovery unit 2;
The outlet of described first order compress cell 3 connects with the entrance of second level compress cell 4;
The gas flowing into self is carried out supercharging by described first order compress cell 3 and described second level compress cell 4 respectively.
Further, described waste heat recovery unit 2 includes waste gas air accumulator 21, measures the electro connecting pressure gauge 22 of gas pressure in described waste gas air accumulator 21.Waste gas air accumulator 21 is for storing the high pressure exhaust gas that gas equipment 1 air vent is discharged.When gas equipment is multiple stage, waste gas air accumulator 21 is for storing the high pressure exhaust gas that multiple stage gas equipment air vent is discharged.
Further, described waste heat recovery unit 2 also includes reclaiming compress cell 23, and the gas in described waste gas air accumulator 21 is carried out supercharging by described recovery compress cell 23.Arrange that reclaim compress cell 23 in order that the air pressure of the gas increased in waste gas air accumulator 21, so that the gas in waste gas air accumulator 21 is more easy in the described first order compress cell 3 of entrance.
Further, described waste heat recovery unit 2 also includes the safety exhaust pipeline 24 of described waste gas air accumulator 21 connection, described blow-off pipe 24 is provided with electromagnetic valve 25 and deafener 26, described safety exhaust pipeline 24 connects with ambient atmosphere, and described electromagnetic valve 25 controls the gas discharging in described safety exhaust pipeline 24.When the hypertonia of gas in described waste gas air accumulator 21, partial high pressure gas is discharged by described safety exhaust pipeline 24, thus preventing the hypertonia of gas in described waste gas air accumulator 21, deafener 26 is then reduce the noise that gases at high pressure produce when discharging to ambient atmosphere.
Further, described first order compress cell 3 includes the first supercharger 31 and the first booster jar 32, and the gas in described first booster jar 32 is carried out supercharging by described first supercharger 31;Described first order supercharger 31 controls its duty by an electromagnetic valve 311;
Described second level compress cell 4 includes the second supercharger 41 and the second booster jar 42, and the gas in described second booster jar 42 is carried out supercharging by described second supercharger 41;
The outlet of described first order compress cell 3 connects with the entrance of second level compress cell 4.
Further, described first order compress cell 3 also includes supercharging electro connecting pressure gauge 34, and described supercharging electro connecting pressure gauge 34 is connected with described first booster jar 32, for measuring the gas pressure in described first order compress cell 3;
Described second level compress cell 4 also includes supercharging electro connecting pressure gauge 44, and described supercharging electro connecting pressure gauge 44 is connected with described second booster jar 42, for measuring the gas pressure in described second level compress cell 4.
Further, described first order compress cell 3 includes the safety exhaust pipeline 33 connected with described first booster jar 32 equally, described blow-off pipe 33 is again provided with electromagnetic valve and deafener, described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.The purpose that first order compress cell 3 arranges safety exhaust pipeline 33 is too high also for preventing the gas pressure in the first booster jar 32.
Further, described second level compress cell 4 includes the safety exhaust pipeline 43 connected with described second booster jar 42 equally, described blow-off pipe 43 is again provided with electromagnetic valve and deafener, described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.The purpose that second level compress cell 4 arranges safety exhaust pipeline 43 is too high also for preventing the gas pressure in the second booster jar 32.
Further, the gas tube orifice that enters of described gas equipment 1 connects with high-pressure air source 5.High-pressure air source 5 provides gases at high pressure to use to described gas equipment 1 by an electromagnetic valve 51 and check valve 52.When gas equipment is two, same, the gas tube orifice that enters of second gas equipment 6 connects with high-pressure air source 5.High-pressure air source 5 provides gases at high pressure to use to second gas equipment 6 by another electromagnetic valve 53 and check valve 54.
Further, the exhaust pipe mouth of described gas equipment 1 is connected with ambient atmosphere by a safety exhaust pipeline 11, and described blow-off pipe 11 is provided with electromagnetic valve and deafener, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.Herein, the purpose arranging safety exhaust pipeline 11 is: when waste heat recovery unit 2 or compress cell 3 fault cannot normal operation time, the electro connecting pressure gauge 12 being arranged on described safety exhaust pipeline 11 detects that gas pressure is too high, now the electromagnetic valve on blow-off pipe 11 is opened, and high pressure exhaust gas can be discharged by described gas equipment 1 in time by described blow-off pipe 11.When there is two gas equipments, second gas equipment adopts this kind of way too.
Further, the outlet of described second level compress cell 4 connects with the gas tube orifice that enters of described gas equipment 1.When only existing a gas equipment, employing two-step supercharging unit can so that the gas pressure of second level compress cell 4 outlet be higher, it is possible to meets the gas equipment that gas pressure is had higher requirements and uses.
Further, the quantity of described gas equipment is multiple, the exhaust pipe mouth of each described gas equipment is respectively connected with the entrance of described waste heat recovery unit 2 by a check valve, and the outlet of described first order compress cell 3 is connected by a check valve with the gas tube orifice that enters of a described gas equipment;The outlet of described second level compress cell 4 then can be connected by a check valve with the gas tube orifice that enters of second described gas equipment, and at this moment, the gas pressure of second gas equipment is more than the gas pressure of First gas equipment;In like manner, it is possible to adopt third quarter compress cell, fourth stage compress cell etc. to realize the gas pressure demand that multiple stage gas equipment is different.
Further, when described gas equipment is only the fast press of double bolloon formula vacuum, the described double bolloon fast press of formula vacuum has upper gasbag and lower gasbag, the control air pressure in described lower gasbag more than the control air pressure in described upper gasbag,
The outlet of described first order compress cell 3 connects with the gas tube orifice that enters of described upper gasbag;
The outlet of described second level compress cell 4 connects with the gas tube orifice that enters of described lower gasbag.
The work process of a kind of multi-stage booster gas recovery system provided by the invention is as follows: for the gas equipment of two demand gas with various pressure, high-pressure air source 5 provides gases at high pressure to use to gas equipment 1 and gas equipment 6 respectively, then electromagnetic valve 13 and 63 is opened, high pressure exhaust gas is discharged by described gas equipment 1 and gas equipment 6 through exhaust pipe mouth, and high pressure exhaust gas enters in waste heat recovery unit 2 respectively through check valve 10 and check valve 60;After high pressure exhaust gas enters described waste heat recovery unit 2, it is stored in described waste gas air accumulator 21, now, recovery compress cell 23 can be set the high pressure exhaust gas in described waste gas air accumulator 21 is carried out supercharging, the air pressure in waste gas air accumulator 21 is made to raise, so that gas more easily enters in first order compress cell 3;Gas in waste gas air accumulator 21 enters in the booster jar 32 of described first order compress cell 3 through described second check valve 20, gas in booster jar 32 is carried out supercharging by supercharger 31, the gas pressure in booster jar 32 is made to raise, after the gas pressure in the described compress cell 3 that described supercharging electro connecting pressure gauge 34 measures reaches requirement, on the one hand, the outlet of first order compress cell 3 connects with the gas tube orifice that enters of described gas equipment 1, open described 3rd electromagnetic valve 35, what gas in described booster jar 32 flowed into described gas equipment 1 enters gas tube orifice for described gas equipment 1;On the other hand, the outlet of first order compress cell 3 connects with the entrance of described second level compress cell 4, now, gases at high pressure in first order compress cell 3 enter in second level compress cell 4, second level compress cell 4 starts gas is carried out supercharging, gas after supercharging stores in described second booster jar 42, after the gas pressure in the described compress cell 4 that the supercharging electro connecting pressure gauge 44 of second level compress cell measures reaches requirement, open electromagnetic valve 45, what gas in described second booster jar 42 flowed into described gas equipment 6 enters gas tube orifice for described gas equipment 6;This completes recycling of the high pressure exhaust gas of two gas equipments, and the gas pressure being supplied to two gas equipments is different.
Multi-stage booster gas recovery system provided by the invention, on the one hand, achieve the recycling to the high pressure exhaust gas that gas equipment produces, effectively solve in prior art, when gas equipment increases, need to change the problem of the production cost rising that high-power air compressor machine causes, and save the energy;On the other hand, the gases at high pressure after recovery can realize multiple different air pressure, such that it is able to the waste gas recovery meeting the gas equipment of different operating air pressure utilizes.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, any change that the those of ordinary skill in field of the present invention does according to the disclosure above content, modification, belongs to the protection domain of claims.

Claims (13)

1. multi-stage booster gas recovery system, reclaims the high pressure exhaust gas of gas equipment, it is characterised in that include waste heat recovery unit and at least two-step supercharging unit,
The exhaust pipe mouth of described gas equipment is connected with the entrance of described waste heat recovery unit by the first check valve;
The outlet of described waste heat recovery unit is connected by the entrance of the second check valve with first order compress cell;
The outlet of described first order compress cell connects with the entrance of second level compress cell;
The gas flowing into self is carried out supercharging by described first order compress cell and described second level compress cell respectively.
2. multi-stage booster gas recovery system according to claim 1, it is characterised in that
Described first order compress cell includes the first supercharger and the first booster jar, and the gas in described first booster jar is carried out supercharging by described first supercharger;
Described second level compress cell includes the second supercharger and the second booster jar, and the gas in described second booster jar is carried out supercharging by described second supercharger;
The outlet of described first order compress cell connects with the entrance of second level compress cell.
3. multi-stage booster gas recovery system according to claim 2, it is characterized in that, described first order compress cell and second level compress cell all also include electro connecting pressure gauge, described electro connecting pressure gauge is connected with described first booster jar and the second booster jar respectively, for measuring the gas pressure in described first compress cell and described second compress cell.
4. multi-stage booster gas recovery system according to claim 2, it is characterized in that, described first order compress cell also includes the safety exhaust pipeline connected with described first booster jar, described blow-off pipe is provided with electromagnetic valve and deafener, described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
5. multi-stage booster gas recovery system according to claim 2, it is characterized in that, described second level compress cell also includes the safety exhaust pipeline connected with described second booster jar, described blow-off pipe is provided with electromagnetic valve and deafener, described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
6. multi-stage booster gas recovery system according to claim 1, it is characterised in that described waste heat recovery unit includes waste gas air accumulator, measures the electro connecting pressure gauge of gas pressure in described waste gas air accumulator.
7. multi-stage booster gas recovery system according to claim 6, it is characterised in that described waste heat recovery unit also includes reclaiming compress cell, and the gas in described waste gas air accumulator is carried out supercharging by described recovery compress cell.
8. multi-stage booster gas recovery system according to claim 6, it is characterized in that, described waste heat recovery unit also includes the safety exhaust pipeline connected with described waste gas air accumulator, described blow-off pipe is provided with electromagnetic valve and deafener, described safety exhaust pipeline connects with ambient atmosphere, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
9. multi-stage booster gas recovery system according to claim 1, it is characterised in that the gas tube orifice that enters of described gas equipment connects with high-pressure air source.
10. multi-stage booster gas recovery system according to claim 1, it is characterized in that, the exhaust pipe mouth of described gas equipment is connected with ambient atmosphere by a safety exhaust pipeline, described blow-off pipe is provided with electromagnetic valve and deafener, and described electromagnetic valve controls the gas discharging in described safety exhaust pipeline.
11. multi-stage booster gas recovery system according to claim 1, it is characterised in that the outlet of described second level compress cell connects with the gas tube orifice that enters of described gas equipment.
12. multi-stage booster gas recovery system according to claim 1, it is characterized in that, the quantity of described gas equipment is multiple, the exhaust pipe mouth of each described gas equipment is respectively connected with the entrance of described waste heat recovery unit by a check valve, and the outlet of described first order compress cell is respectively connected from the gas tube orifice that enters of different gas equipments by a check valve respectively with the outlet of described second level compress cell.
13. multi-stage booster gas recovery system according to claim 1, it is characterized in that, described gas equipment is the double bolloon fast press of formula vacuum, the described double bolloon fast press of formula vacuum has upper gasbag and lower gasbag, control air pressure in described lower gasbag is more than the control air pressure in described upper gasbag
The outlet of described first order compress cell connects with the gas tube orifice that enters of described upper gasbag;
The outlet of described second level compress cell connects with the gas tube orifice that enters of described lower gasbag.
CN201610278159.9A 2016-04-28 2016-04-28 Multi-level supercharging waste gas recycling system Pending CN105782718A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110801769A (en) * 2019-11-19 2020-02-18 中国科学院合肥物质科学研究院 Preparation system and use method of high-pressure mixed gas
CN113007596A (en) * 2021-01-20 2021-06-22 神华新能源有限责任公司 Hydrogen filling system and hydrogenation station

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Publication number Priority date Publication date Assignee Title
US5220799A (en) * 1991-12-09 1993-06-22 Geert Lievens Gasoline vapor recovery
CN2868651Y (en) * 2005-12-25 2007-02-14 辛群立 Bottle-blowing-machine gas circulation compression apparatus
CN203844212U (en) * 2014-05-26 2014-09-24 蔡佳翰 Air blowing and tail gas recovery device of bottle blowing machine
CN104121170A (en) * 2014-07-30 2014-10-29 无锡杰尔压缩机有限公司 Stage pressurization air supply system
CN205117677U (en) * 2015-11-05 2016-03-30 荣少华 Air purification air compressor machine
CN205331810U (en) * 2016-01-06 2016-06-22 中山市博特机械厂 Highly -compressed air recovery unit
CN205716433U (en) * 2016-04-28 2016-11-23 朗华全能自控设备(上海)股份有限公司 Multi-stage booster gas recovery system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220799A (en) * 1991-12-09 1993-06-22 Geert Lievens Gasoline vapor recovery
CN2868651Y (en) * 2005-12-25 2007-02-14 辛群立 Bottle-blowing-machine gas circulation compression apparatus
CN203844212U (en) * 2014-05-26 2014-09-24 蔡佳翰 Air blowing and tail gas recovery device of bottle blowing machine
CN104121170A (en) * 2014-07-30 2014-10-29 无锡杰尔压缩机有限公司 Stage pressurization air supply system
CN205117677U (en) * 2015-11-05 2016-03-30 荣少华 Air purification air compressor machine
CN205331810U (en) * 2016-01-06 2016-06-22 中山市博特机械厂 Highly -compressed air recovery unit
CN205716433U (en) * 2016-04-28 2016-11-23 朗华全能自控设备(上海)股份有限公司 Multi-stage booster gas recovery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110801769A (en) * 2019-11-19 2020-02-18 中国科学院合肥物质科学研究院 Preparation system and use method of high-pressure mixed gas
CN113007596A (en) * 2021-01-20 2021-06-22 神华新能源有限责任公司 Hydrogen filling system and hydrogenation station

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Application publication date: 20160720