CN109157980B - Air generator - Google Patents

Air generator Download PDF

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Publication number
CN109157980B
CN109157980B CN201811242969.4A CN201811242969A CN109157980B CN 109157980 B CN109157980 B CN 109157980B CN 201811242969 A CN201811242969 A CN 201811242969A CN 109157980 B CN109157980 B CN 109157980B
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pipe
drying pipe
end cover
drying
top end
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CN201811242969.4A
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Chinese (zh)
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CN109157980A (en
Inventor
郭廷富
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Chuangdao Scientific Instrument Co ltd
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Chuangdao Scientific Instrument Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Drying Of Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The invention discloses an air generator, comprising: the system comprises an air compressor, a first valve island, a second valve island, a gas distributor, a first check valve, a second check valve and a hydrocarbon removal catalytic device; the first drying pipe, the second drying pipe, the third purifying pipe and the fourth purifying pipe are axially stretched and integrally formed to form the gas distributor; the first drying pipe is communicated with the second drying pipe; the top ends of the first drying pipe and the second drying pipe are respectively connected with an air inlet of the hydrocarbon removal catalytic device through a first one-way valve and a second one-way valve; the bottom end of the first drying pipe and the bottom end of the second drying pipe are respectively connected with the first valve island and the second valve island; the air compressor is connected with the first valve island and the second valve island; the gas outlet of the hydrocarbon removal catalytic device is communicated with a third purifying pipe; the third purifying pipe is communicated with the fourth purifying pipe. The invention overcomes the defect of complex structure of the existing air generator, can simplify the structure of the air generator, improve the space utilization rate of the air generator and improve the stability of the structure of the air generator.

Description

Air generator
Technical Field
The invention relates to the technical field of air purification, in particular to an air generator.
Background
In a laboratory air generator, a solid adsorbent material is filled in an adsorption tube in a solid adsorbent adsorption mode for removing impurities in air, such as water, carbon dioxide and a small amount of hydrocarbon, air flows through the adsorption tube, impurity components in the air are adsorbed and retained in the adsorbent material by the adsorbent material, and purified air flows out of the adsorption tube.
Because inside needing a plurality of adsorption tubes to carry out corresponding the getting rid of to impurity in the air generator, need a plurality of gas circuit to connect between each independent adsorption tube, because the structure of air generator is complicated, space utilization is low, and the gas circuit is connected too much and is leaded to the stability greatly reduced of air generator self structure easily.
Disclosure of Invention
The invention aims to provide an air generator, which solves the problems in the prior art, simplifies the structure of the air generator, improves the space utilization rate of the air generator and further improves the structural stability of the air generator.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an air generator, which comprises an air compressor, a first valve island, a second valve island, a gas distributor, a first one-way valve, a second one-way valve and a hydrocarbon removal catalytic device, wherein the first valve island is arranged on the air compressor; the first drying pipe, the second drying pipe, the third purifying pipe and the fourth purifying pipe are axially stretched and integrally formed to form the gas distributor; the first drying pipe is communicated with the second drying pipe in the radial direction; the top ends of the first drying pipe and the second drying pipe are respectively connected with the air inlet of the hydrocarbon removal catalytic device through the first one-way valve and the second one-way valve; the bottom end of the first drying pipe and the bottom end of the second drying pipe are respectively connected with the first valve island and the second valve island; the air compressor is connected with the first valve island and the second valve island which are fixedly arranged at the bottoms of the first drying pipe and the second drying pipe respectively; the gas outlet of the hydrocarbon removal catalytic device is communicated with the third purifying pipe; the third purifying pipe and the fourth purifying pipe are communicated with each other in the radial direction.
Preferably, the first drying tube and the second drying tube are respectively and fixedly provided with a first top end cover and a second top end cover at the top ends, and the first one-way valve and the second one-way valve are respectively and fixedly arranged on the first top end cover and the second top end cover.
Preferably, the side wall of the first drying pipe is radially provided with a first vent hole, the side wall of the second drying pipe is provided with a second vent hole, and the second vent hole is communicated with the first vent hole through a first axial channel; and a flow limiting valve is fixedly arranged in the first vent hole.
Preferably, the bottom ends of the first drying pipe, the second drying pipe and the third purifying pipe are respectively and fixedly provided with a gas diffusion cover, and the two gas diffusion covers are respectively connected with the first valve island and the second valve island.
Preferably, the side wall of the gas diffusion cover is uniformly provided with a plurality of overflowing holes.
Preferably, the first drying pipe and the second drying pipe are filled with drying agents.
Preferably, the side wall of the bottom of the third purification pipe is radially provided with a third vent hole, and the side wall of the top of the fourth purification pipe is radially provided with a fourth vent hole; and the third vent hole is communicated with the fourth vent hole through a second axial channel.
Preferably, the top end and the bottom end of the first drying tube are respectively and fixedly provided with a first top end cover and a first bottom end cover; the top end and the bottom end of the second drying pipe are respectively and fixedly provided with a second top end cover and a second bottom end cover; the top end and the bottom end of the third purifying tube are respectively and fixedly provided with a third top end cover and a third bottom end cover; the top end and the bottom end of the fourth purifying tube are respectively and fixedly provided with a fourth top end cover and a fourth bottom end cover; the first bottom end cover, the second bottom end cover and the third bottom end cover are all provided with air inlets; the first top end cover, the second top end cover and the fourth top end cover are all provided with air outlets.
Preferably, the hydrocarbon removal catalytic device comprises a box body and heat preservation ceramics; the heat-insulating ceramic is fixedly filled in the box body in the circumferential direction; a hydrocarbon removing catalyst filling hole is formed in the center of the heat-insulating ceramic and is used for filling a hydrocarbon removing catalyst; the heating rod insertion hole is formed in one side, except the hydrocarbon filling hole, of the heat-insulating ceramic, and a heating rod is arranged in the heating rod insertion hole.
Preferably, the inside of the third purification pipe is filled with a molecular sieve.
Compared with the prior art, the invention has the following technical effects:
the first drying pipe, the second drying pipe, the third purifying pipe and the fourth purifying pipe of the air generator are axially stretched and integrally formed to form the gas distributor; the first drying pipe is communicated with the second drying pipe in the radial direction; the top ends of the first drying pipe and the second drying pipe are respectively connected with an air inlet of the hydrocarbon removal catalytic device through a first one-way valve and a second one-way valve; the bottom end of the first drying pipe and the bottom end of the second drying pipe are respectively connected with the first valve island and the second valve island; the air compressor is connected with a first valve island and a second valve island which are fixedly arranged at the bottoms of the first drying pipe and the second drying pipe respectively; the gas outlet of the hydrocarbon removal catalytic device is communicated with a third purifying pipe; the inside radial intercommunication between No. three purge tubes and No. four purge tubes. Compare inside a plurality of drying tubes and a plurality of purge tube of needing of current air generator and get rid of the impurity in to the air, need set up a plurality of gas circuit between a plurality of independent drying tubes and a plurality of independent purge tube and connect, lead to air generator's structure complicacy, space utilization is low, and the too much stability that can lead to air generator that is used for the gas circuit of connecting reduces. The plurality of drying pipes and the plurality of purifying pipes are communicated with each other inside, so that the structure of the air generator can be simplified, the space utilization rate of the air generator can be improved, and the stability of the structure of the air generator can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a perspective front view of a gas distributor of an air generator provided by the present invention;
FIG. 2 is a bottom perspective view of a gas distributor of the air generator provided by the present invention;
FIG. 3 is a bottom view of a gas distributor of the air generator provided by the present invention;
FIG. 4 is a sectional view taken along line A-A of a bottom view of the gas distributor of the air generator of FIG. 3;
FIG. 5 is a top view of a gas distributor of an air generator provided by the present invention;
FIG. 6 is a sectional view taken along line B-B of a top view of the gas distributor of the air generator of FIG. 5;
FIG. 7 is a top view of a hydrocarbon removal catalytic device of the air generator provided in accordance with the present invention;
FIG. 8 is a C-C cross-sectional view of a top view of the hydrocarbon removal catalytic device of the air generator of FIG. 7;
FIG. 9 is a block diagram of a valve island and gas diffusion cover of an air generator provided by the present invention;
fig. 10 is a top view of a valve island and gas diffusion cover of an air generator provided by the present invention. (ii) a
Fig. 11 is a cross-sectional view of the valve island and gas diffusion cover of fig. 10 taken along line D-D.
Wherein: 1-first drying tube 1, 2-second drying tube, 3-third purifying tube, 4-fourth purifying tube, 5-flow limiting valve, 6-second one-way valve, 7-third bottom end cover, 8-second valve island, 9-air inlet, 10-heating rod jack, 11-first vent hole, 12-hydrocarbon removing catalyst filling hole, 13-heat preservation ceramic, 14-gas diffusion cover, 15-hydrocarbon removing catalytic device, 21-second vent hole, 31-third vent hole, 34-second axial channel and 41-fourth vent hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide an air generator, which aims to solve the problems in the prior art, simplify the structure of the air generator, improve the space utilization rate of the air generator and improve the structural stability of the air generator.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in FIGS. 1 to 11: the embodiment provides an air generator, which comprises an air compressor, a first valve island, a second valve island 8, a gas distributor, a first check valve, a second check valve 6 and a hydrocarbon removal catalytic device 15; the first drying pipe 1, the second drying pipe 2, the third purifying pipe 3 and the fourth purifying pipe 4 are axially stretched and integrally formed to form the gas distributor; the first drying pipe 1 is communicated with the second drying pipe 2; the top ends of the first drying pipe 1 and the second drying pipe 2 are respectively connected with an air inlet of the hydrocarbon removal catalytic device 15 through a first one-way valve and a second one-way valve 6; the bottom end of the first drying pipe 1 and the bottom end of the second drying pipe 2 are respectively connected with the first valve island and the second valve island 8; the air compressor is connected with a first valve island and a second valve island 8 which are respectively and fixedly arranged at the bottoms of the first drying pipe 1 and the second drying pipe 2; the gas outlet of the hydrocarbon removal catalytic device 15 is communicated with the third purifying pipe 3; the inside radial intercommunication between No. three purge tube 3 and No. four purge tube 4.
Compare inside a plurality of drying tubes and a plurality of purge tube of needing of current air generator and get rid of the impurity in to the air, need set up a plurality of gas circuit between a plurality of independent drying tubes and a plurality of independent purge tube and connect, lead to air generator's structure complicacy, space utilization is low, and the too much stability that can lead to air generator that is used for the gas circuit of connecting reduces. The plurality of drying pipes and the plurality of purifying pipes are communicated with each other inside, so that the structure of the air generator can be simplified, the space utilization rate of the air generator can be improved, and the stability of the structure of the air generator can be improved.
The working process of the air generator provided by the invention is as follows:
the air compressor passes through the first valve island or the second valve island 8 to enable the air to flow from one of the first drying pipe 1 or the second drying pipe 2 in the air distributor, when the air enters the bottom of the first drying pipe 1 to be dried, as the first drying pipe 1 is communicated with the second drying pipe 2, one part of the air dried by the first drying pipe 1 enters the second drying pipe 2, and the other part of the air enters the hydrocarbon removal catalytic device 15 through the first one-way valve at the top end of the first drying pipe 1; the drying gas entering the second drying pipe 2 carries out blowback maintenance on the drying agent in the second drying pipe 2, and the gas entering the hydrocarbon removing catalytic device 15 can carry out hydrocarbon removing reaction; the gas after the treatment of removing hydrocarbon catalytic unit 15 gets into No. 3 in No. 3 from the bottom of No. 3 purge tubes, and gas is after No. 3 purge tubes purifies, flows into No. 4 purge tubes from inside from No. 3 purge tubes and handles, and the gas after No. 4 purge tubes handles is discharged from No. 4 purge tubes's top.
First drying tube 1, No. 2 tops of drying tube are fixed respectively and are provided with first top lid and second top lid, and first check valve and second check valve 6 are fixed respectively and are set up on first top lid and second top lid, and first check valve and second check valve 6 avoid taking place palirrhea and then lead to the condition that gaseous drying efficiency is low through drying tube 1 or No. 2 drying back gas generation of drying tube.
The side wall of the first drying pipe 1 is radially provided with a first vent hole 11, the side wall of the second drying pipe 2 is provided with a second vent hole 21, and the second vent hole 21 is communicated with the first vent hole 11 through a first axial channel; a flow limiting valve 5 is fixedly arranged in the first vent hole 11, and the flow limiting valve 5 is used for controlling the size of air flow for back blowing maintenance between the first drying pipe 1 and the second drying pipe 2.
The bottom of a drying tube 1, a drying tube 2 and a purifying tube 3 is respectively fastened with a gas diffusion cover 14, and the two gas diffusion covers are respectively connected with a first valve island and a second valve island 8, so that gas slowly enters the drying tube 1, the drying tube 2 and the purifying tube 3 at a constant speed.
The side wall of the gas diffusion cover 14 is uniformly provided with a plurality of overflowing holes, so that the gas enters the overflowing holes on the side wall of the gas diffusion cover 14, and the flowing speed of the gas can be reduced.
The first drying pipe 1 and the second drying pipe 2 are filled with drying agents for drying gas.
A third vent hole 31 is radially formed in the side wall of the bottom of the third purifying tube 3, and a fourth vent hole 41 is radially formed in the side wall of the top of the fourth purifying tube 4; third ventilation hole 31 and fourth ventilation hole 41 are communicated with each other through second axial passage 34, so that the inside communication between No. three purifying tubes 3 and No. four purifying tubes 4 is realized, the communicating pipeline is prevented from being arranged outside No. three purifying tubes 3 and No. four purifying tubes 4, and the gas distributor is simple in structure.
The top end and the bottom end of the first drying pipe 1 are respectively and fixedly provided with a first top end cover and a first bottom end cover; the top end and the bottom end of the second drying pipe 2 are respectively and fixedly provided with a second top end cover and a second bottom end cover; the top end and the bottom end of the third purifying tube 3 are respectively and fixedly provided with a third top end cover and a third bottom end cover 7; the top end and the bottom end of the fourth purifying tube 4 are respectively and fixedly provided with a fourth top end cover and a fourth bottom end cover which are used for sealing the first drying tube 1, the second drying tube 2, the third purifying tube 3 and the fourth purifying tube 4; the first bottom end cover, the second bottom end cover and the third bottom end cover 7 are all provided with air inlets 9; the first top end cover, the second top end cover and the fourth top end cover are all provided with air outlets.
The hydrocarbon removal catalytic device 15 comprises a box body and heat preservation ceramics 13; the interior of the box body is circumferentially and fixedly filled with heat insulation ceramics 13; the center of the heat preservation ceramic 13 is provided with a hydrocarbon removal catalyst filling hole 12, and the hydrocarbon removal catalyst filling hole 12 is filled with a hydrocarbon removal catalyst; one side of the hydrocarbon-removing filling hole 12 in the heat insulation ceramic is provided with a heating rod jack 10, and a heating rod is arranged in the heating rod jack 10. The catalyst in the box body is heated by the heating rod, and the heat preservation ceramic 13 is used for preserving the heat of the catalyst for removing hydrocarbons in the box body so as to meet the temperature required by the catalytic reaction for removing hydrocarbons.
The third purifying pipe 3 is filled with molecular sieve. The molecular sieve is used for adsorbing impurities in the gas in the third purifying pipe 3.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (7)

1. An air generator, characterized by: the device comprises an air compressor, a first valve island, a second valve island, a gas distributor, a first check valve, a second check valve and a hydrocarbon removal catalytic device; the first drying pipe, the second drying pipe, the third purifying pipe and the fourth purifying pipe are axially stretched and integrally formed to form the gas distributor; the first drying pipe is communicated with the second drying pipe in the radial direction; the top ends of the first drying pipe and the second drying pipe are respectively connected with the air inlet of the hydrocarbon removal catalytic device through the first one-way valve and the second one-way valve; the bottom end of the first drying pipe and the bottom end of the second drying pipe are respectively connected with the first valve island and the second valve island; the air compressor is connected with the first valve island and the second valve island which are fixedly arranged at the bottoms of the first drying pipe and the second drying pipe respectively; the gas outlet of the hydrocarbon removal catalytic device is communicated with the third purifying pipe; the inside of the third purifying pipe is communicated with the inside of the fourth purifying pipe in the radial direction, gas diffusion covers are respectively and fixedly arranged at the bottom ends of the first drying pipe, the second drying pipe and the third purifying pipe, the gas diffusion covers on the first drying pipe and the second drying pipe are respectively connected with the first valve island and the second valve island, and the hydrocarbon removing catalytic device comprises a box body and heat preservation ceramic; the heat-insulating ceramic is fixedly filled in the box body in the circumferential direction; the center of the heat-insulating ceramic is provided with a hydrocarbon-removing catalyst filling hole which is used for filling a hydrocarbon-removing catalyst; a heating rod jack is formed in one side of the hydrocarbon-removing filling hole in the heat-insulating ceramic, a heating rod is arranged in the heating rod jack, a first vent hole is radially formed in the side wall of the first drying pipe, a second vent hole is formed in the side wall of the second drying pipe, and the second vent hole is communicated with the first vent hole through a first axial channel; a third vent hole is radially formed in the side wall of the bottom of the third purification pipe, and a fourth vent hole is radially formed in the side wall of the top of the fourth purification pipe; and the third vent hole is communicated with the fourth vent hole through a second axial channel.
2. The air generator as claimed in claim 1, wherein: the first drying pipe and the second drying pipe are respectively and fixedly provided with a first top end cover and a second top end cover at the top ends, and the first check valve and the second check valve are respectively and fixedly arranged on the first top end cover and the second top end cover.
3. The air generator as claimed in claim 1, wherein: and a flow limiting valve is fixedly arranged in the first vent hole.
4. The air generator as claimed in claim 1, wherein: and a plurality of overflowing holes are uniformly distributed on the side wall of the gas diffusion cover.
5. The air generator as claimed in claim 1, wherein: the first drying pipe and the second drying pipe are filled with drying agents.
6. The air generator as claimed in claim 1, wherein: the top end and the bottom end of the first drying pipe are respectively and fixedly provided with a first top end cover and a first bottom end cover; the top end and the bottom end of the second drying pipe are respectively and fixedly provided with a second top end cover and a second bottom end cover; the top end and the bottom end of the third purifying tube are respectively and fixedly provided with a third top end cover and a third bottom end cover; the top end and the bottom end of the fourth purifying tube are respectively and fixedly provided with a fourth top end cover and a fourth bottom end cover; the first bottom end cover, the second bottom end cover and the third bottom end cover are all provided with air inlets; the first top end cover, the second top end and the fourth top end cover are all provided with air outlets.
7. The air generator as claimed in claim 1, wherein: and the inside of the third purifying pipe is filled with a molecular sieve.
CN201811242969.4A 2018-10-24 2018-10-24 Air generator Active CN109157980B (en)

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Application Number Priority Date Filing Date Title
CN201811242969.4A CN109157980B (en) 2018-10-24 2018-10-24 Air generator

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CN201811242969.4A CN109157980B (en) 2018-10-24 2018-10-24 Air generator

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CN109157980B true CN109157980B (en) 2020-10-30

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110898661A (en) * 2019-10-29 2020-03-24 深圳供电局有限公司 Air purifying device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2495363Y (en) * 2001-02-26 2002-06-19 杭州汉业气源净化设备有限公司 Apparatus for purifying and drying pressed air
JP2009090266A (en) * 2007-10-09 2009-04-30 Inter Works:Kk Adsorption dehumidification type dry air generator with self-regeneration function of adsorbent
CN203200020U (en) * 2013-04-25 2013-09-18 湖南太阳龙医疗科技有限公司 Molecular sieve assembly
CN206787888U (en) * 2017-04-13 2017-12-22 宇星科技发展(深圳)有限公司 Purification hydrocarbon removing device for VOCs on-line detecting systems
CN108079779A (en) * 2017-12-12 2018-05-29 宇星科技发展(深圳)有限公司 A kind of pure instrument of zero air lift

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201401351D0 (en) * 2014-01-27 2014-03-12 Walker Filtration Ltd Purification column
CN205760603U (en) * 2016-05-25 2016-12-07 北京雪迪龙科技股份有限公司 Absorbing unit tank and there is zero air purifying apparatus of absorbing unit tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2495363Y (en) * 2001-02-26 2002-06-19 杭州汉业气源净化设备有限公司 Apparatus for purifying and drying pressed air
JP2009090266A (en) * 2007-10-09 2009-04-30 Inter Works:Kk Adsorption dehumidification type dry air generator with self-regeneration function of adsorbent
CN203200020U (en) * 2013-04-25 2013-09-18 湖南太阳龙医疗科技有限公司 Molecular sieve assembly
CN206787888U (en) * 2017-04-13 2017-12-22 宇星科技发展(深圳)有限公司 Purification hydrocarbon removing device for VOCs on-line detecting systems
CN108079779A (en) * 2017-12-12 2018-05-29 宇星科技发展(深圳)有限公司 A kind of pure instrument of zero air lift

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