CN109351120A - A kind of compression air-filtering device - Google Patents
A kind of compression air-filtering device Download PDFInfo
- Publication number
- CN109351120A CN109351120A CN201811340924.0A CN201811340924A CN109351120A CN 109351120 A CN109351120 A CN 109351120A CN 201811340924 A CN201811340924 A CN 201811340924A CN 109351120 A CN109351120 A CN 109351120A
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- Prior art keywords
- air
- pressure
- gas
- filter element
- lower shell
- Prior art date
- 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
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 31
- 230000006835 compression Effects 0.000 title claims abstract description 19
- 238000007906 compression Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 239000000706 filtrate Substances 0.000 claims abstract description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 6
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000006096 absorbing agent Substances 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000002808 molecular sieve Substances 0.000 claims abstract description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229960004424 carbon dioxide Drugs 0.000 claims 2
- 229910002090 carbon oxide Inorganic materials 0.000 claims 1
- 238000011897 real-time detection Methods 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 30
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- B01D53/04—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 with stationary adsorbents
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- 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
- B01D53/04—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 with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of compression air-filtering devices, for being filtered during being inflated using compressed air to breath bottle to pressure-air.The device includes: upper shell, lower shell and the sleeve and composite filter element being arranged in inside lower shell.Compressed air gas source is entered in lower shell by compressed air inlet pipe, after the multiple filtration of composite filter element, is entered in upper shell, is finally discharged by compressed air discharge pipe.Carbon monoxide, carbon dioxide absorber of the composite filter element by first layer, the molecular sieve of the second layer, the active carbon composition of third layer, each layer filtrate is circular cylindrical, forms composite filter element in inside and outside steel mesh by setting sequence is mutually nested.The filter device overall structure is simple, dismantles install convenient, and small in size, filter element filtering area is big, and filter efficiency is high, can meet big flow, the use demand of high pressure, and multi-layered filtering element guarantees that filtered air quality reaches breathing gas quality standard.
Description
Technical field
Invention is related to a kind of filter device, and in particular to a kind of compression air-filtering device.
Background technique
Self contained breather for fire fighting largely configures on ship, and after fire occurs for ship, often the duration is very long, is disappearing
In anti-operation process, need to consume a large amount of compression respiratory gas source.It is subject to certain restrictions in view of breather for fire fighting configuration quantity,
For this purpose, having on naval vessels, breather for fire fighting gas cylinder is quick, largely fills ability, just becomes and completes fire-fighting operation, ensures ship
The necessary condition of oceangoing ship security against fire.
Breathing derives from various air compressor machines and matched air supply system with compressed air, special in view of the working principle of air compressor machine
Property, there is a degree of pollution in the compressed air formed after compressor is handled.Each major pollutants in compressed air
Contain mist of oil and particulate matter, vapor and dew point, carbon monoxide, carbon dioxide and hydrocarbon etc..
When being inflated using quick inflation station to high pressure gas cylinder, multiple filtration need to be set on device, to guarantee to fill
Pressure-air into gas cylinder is that cleaning uses for breathing.
Summary of the invention
In view of this, the present invention provides a kind of compression air-filtering device, can to the compressed air under high pressure conditions into
Row filtering, to eliminate the mist of oil wherein adulterated and particulate matter, vapor, carbon monoxide, carbon dioxide and hydrocarbon etc..
The compression air-filtering device include: upper shell, lower shell and the sleeve being arranged in inside lower shell and
Composite filter element；
The upper shell and lower shell are open at one end closed at one end, and shape is docked in the open end of the upper shell and lower shell
At airtight cavity, it is fixed with sealing plate between its interface, the cavity of upper shell and the cavity of lower shell is isolated；
The outlet for its internal gas to be discharged is provided on the upper shell；
Be provided on the lower shell for make pressure-air gas source to be filtered enter its internal inlet tube and
For the drainpipe of generated water in filter process to be discharged；
The sleeve includes outer cylinder and inner cylinder, and the composite filter element is mounted in the annular space between outer cylinder and inner cylinder,
More than two ventholes are provided on the periphery of the outer cylinder and inner cylinder；It is docked at the top of the sleeve with the sealing plate,
The through-hole with the perforation of the centre bore of the inner cylinder is provided on the sealing plate, filtered gas is logical in the inner cylinder centre bore
The through-hole crossed on the sealing plate enters upper shell.
The composite filter element includes three layers, is followed successively by first layer filtrate, second layer filtrate third layer filtrate from inside to outside,
Middle first layer filtrate is carbon monoxide, carbon dioxide absorber, and second layer filtrate is molecular sieve, and third layer filtrate is active carbon.
The sleeve bottom passes through the support annulus being arranged on lower shell bottom plate and is supported；The height of the support annulus
Degree is higher than the height of inlet tube.
The utility model has the advantages that
(1) the filter device overall structure is simple, dismantles install convenient, small in size, can have in actual use
Effect improves the reliability of equipment, ease for operation.
(2) filter core of the filter device is designed as ring-shaped cylinder shape, and from filter core periphery air inlet, filter area is big, filtering
It is high-efficient, big flow, the use demand of high pressure can be met.It is high using the device filtered air quality, it can reach EN12021
Breathe standard air.
Detailed description of the invention
Fig. 1 is breathing compression air-filtering device structural schematic diagram；
Fig. 2 is breathed with compression air-filtering device high pressure gas flow graph；
Wherein: 1- upper shell；21- outlet；22- delivery gauge；23- gas componant detection unit；3- relief valve；4-
Sealing plate；The outer steel mesh of 51-；52 inner steel webs；53- covers tube end plate；61- first layer filtrate；62- second layer filtrate；The filter of 63- third layer
Material；7- lower shell；81- inlet tube；82- inlet pressure gauge；9- drainpipe；10- supports annulus.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present embodiment provides a kind of breathing compression air-filtering devices, can carry out to the compressed air under high pressure conditions
Filtering.
As depicted in figs. 1 and 2, which includes: upper shell 1, pressure-air spout assembly, sealing plate 4, steel mesh set
Cylinder, composite filter element, lower shell 7 and high-pressure air inlet component.
Upper shell 1 and lower shell 7 are tubular construction closed at one end open at one end, and upper shell 1 and lower shell 7 pass through
The shaft shoulder that respective open end is arranged in is coaxial docking, and forms closed tubular construction, and sealing plate 4 is fixed between its interface,
The sealing between 1 cavity of upper shell and 7 cavity of lower shell is realized by the fastening effect for crossing bolt being arranged on interface, together
When can be compacted the composite filter element that be arranged in lower shell 7 by sealing plate 4.
Pressure-air spout assembly and relief valve 3, pressure-air spout assembly packet are provided on the outer peripheral surface of upper shell 1
It includes: valvular outlet 21, outlet air gauge 22 and gas composition detection unit 23 is set.Outlet 21 is for being discharged cylinder
Pressure-air in body 1 is provided with outlet air gauge 22 and gas composition detection unit 23, wherein working off one's feeling vent one's spleen on outlet 21
The pressure for the pressure-air that pressure table 22 is discharged for real-time monitoring through outlet 21, gas componant detection unit 23 is for real-time
The gas componant for the pressure-air being discharged through outlet 21 is detected, is arranged at outlet 21 for detecting warp in the present embodiment
The gas componant detection unit of CO content in the pressure-air that outlet 21 is discharged.The effect of relief valve 3 are as follows: work as filter device
After internal pressure is higher than the secure threshold of setting, the automatic exhaust pressure relief of relief valve 3, in addition, can first be beaten before dismantling filter device
3 pressure release of relief valve is opened, to ensure pressure security in device.
It is provided with high-pressure air inlet component on the outer peripheral surface of lower shell 7 and valvular drainpipe 9 is set, high pressure is empty
Gas intake assembly includes: the valvular inlet tube 81 of setting and inlet gas pressure table 82；Pressure-air gas source to be filtered is by entrance
Pipe 81 enters in lower shell 7, and inlet gas pressure table 82 is used for the pressure-air gas source that real-time monitoring is entered through inlet tube 81
Pressure；Drainpipe 9 is for being discharged generated waste water during the filtration process.
It is internally provided with sleeve 5 in lower shell 7, the outer diameter of sleeve 5 is less than the internal diameter of lower shell 7, and 5 bottom of sleeve is by setting
The support annulus 10 set on 7 bottom plate of lower shell is supported；The height of support annulus 10 should be higher than that high-pressure air inlet pipe 81
Height supported simultaneously in order to avoid the high pressure gas entered through inlet tube 81 directly impacts composite filter element, and then damages composite filter element
Annulus 10 opens up through-hole in high pressure gas flowing direction.The main function of sleeve 5 is protection composite filter element, and composite filter element is avoided to exist
The lower deformation of high pressure gas effect, damage.Sleeve 5 includes the outer steel mesh 51 of annular, annular inner steel web 52 and set tube end plate 53, wherein covering
Tube end plate 53 is supported on support annulus 10, and the outer steel mesh 51 of annular and annular inner steel web 52 are coaxially fixed on set tube end plate 53,
Composite filter element is mounted in the annular space between outer steel mesh 51 and inner steel web 52, and the bottom of composite filter element is supported on sleeve bottom
On plate 53, top is contacted with sealing plate 4, can be compacted composite filter element by sealing plate 4.It is all provided on outer steel mesh 51 and inner steel web 52
There is big venthole, so that the large through-hole of steel mesh 51 enters composite filter element and is filtered high pressure gas outside annular, high pressure after filtering
Gas enters through the large through-hole of annular inner steel web 52 in the central area that annular inner steel web 52 is surrounded.
Position corresponding with the central area that annular inner steel web 52 is surrounded is provided with through-hole on sealing plate 4, logical by this
The connects with the internal cavities of central area and upper shell 1 that hole surrounds inner steel web 52, thus filtered high pressure gas passes through
The through-hole enters in upper shell 1, is discharged by outlet 21.
Composite filter element includes three layers, is followed successively by first layer filtrate 61,62 third layer filtrate 63 of second layer filtrate from inside to outside,
Wherein first layer filtrate 61 is carbon monoxide, carbon dioxide absorber, and second layer filtrate 62 is molecular sieve, and third layer filtrate 63 is
Active carbon.Each layer filtrate is circular cylindrical, is successively nested in the annular space between inside and outside steel mesh and forms by setting sequence
The composite filter element filter area of composite filter element, this kind of structure type is big, and filter efficiency is high, can meet big flow, high pressure makes
Use demand.Gas source is entered in filter core by the gross blow hole of outer steel mesh 51 when filtering, by the filtration of each layer filtrate, goes degasification
Impurity and toxic gas in source, filtered net gas enter 52 intermediate region of inner steel web.
The working principle of the filter device is as shown in Fig. 2, pressure-air gas source enters lower shell 7 and set by inlet tube 81
In annular space between cylinder 5, enter composite filter element by the venthole on outer steel mesh 51, by the multiple filtration of composite filter element
Afterwards, entered in the central area that annular inner steel web 52 is surrounded by the through-hole on inner steel web 52, then into upper shell 1
In, it is discharged by the outlet 21 on upper shell 1, gas componant be discharged is detected by gas componant detection unit.The compression
Air filter basic performance are as follows: filtration flow is 1700m3/h, filter pressure 30MPa, and filtering air quality meets
EN12021 breathes standard air.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of compression air-filtering device characterized by comprising upper shell (1), lower shell (7) and setting are in lower cylinder
Body (7) internal sleeve and composite filter element；
The upper shell (1) and lower shell (7) are open at one end closed at one end, the opening of the upper shell (1) and lower shell (7)
End docking forms airtight cavity, is fixed between its interface sealing plate (4), and the cavity and lower shell of upper shell (1) is isolated
(7) cavity；
The outlet (21) for its internal gas to be discharged is provided on the upper shell (1)；
Be provided on the lower shell (7) for make pressure-air gas source to be filtered enter its internal inlet tube (81) with
And the drainpipe (9) for generated water in filter process to be discharged；
The sleeve includes outer cylinder and inner cylinder, and the composite filter element is mounted in the annular space between outer cylinder and inner cylinder, described
More than two ventholes are provided on the periphery of outer cylinder and inner cylinder；It is docked at the top of the sleeve with the sealing plate (4), institute
State the through-hole being provided on sealing plate (4) with the perforation of the centre bore of the inner cylinder, filtered gas in the inner cylinder centre bore
Enter upper shell (1) by the through-hole on the sealing plate (4).
2. compression air-filtering device as described in claim 1, which is characterized in that the composite filter element includes three layers, from interior
It is followed successively by first layer filtrate (61), second layer filtrate (62) third layer filtrate (63) outward, wherein first layer filtrate (61) is one
Carbonoxide, carbon dioxide absorber, second layer filtrate (62) are molecular sieve, and third layer filtrate (63) is active carbon.
3. compression air-filtering device as claimed in claim 1 or 2, which is characterized in that the sleeve bottom is existed by setting
Support annulus (10) on lower shell (7) bottom plate is supported；The height of support annulus (10) is higher than inlet tube (81)
Highly.
4. compression air-filtering device as claimed in claim 3, which is characterized in that the support annulus (10) is in high pressure gas
Flow direction opens up through-hole.
5. compression air-filtering device as claimed in claim 1 or 2, which is characterized in that the outer cylinder of the sleeve is that annular is outer
Steel mesh (51), inner cylinder are annular inner steel web (52)；The outer steel mesh (51) and inner steel web (52) are coaxially fixed on set tube end plate
(53) on, sleeve is formed.
6. compression air-filtering device as claimed in claim 1 or 2, which is characterized in that be arranged on the outlet (21)
There are outlet air gauge (22) and gas composition detection unit (23), the outlet air gauge (22) is for real-time monitoring through outlet
(21) pressure for the pressure-air being discharged, gas componant detection unit (23) are discharged for real-time detection through outlet (21)
Pressure-air gas componant.
7. compression air-filtering device as claimed in claim 1 or 2, which is characterized in that be arranged on the inlet tube (81)
Have inlet gas pressure table (82), the inlet gas pressure table (82) is used for the pressure-air gas that real-time monitoring is entered through inlet tube (81)
The pressure in source.
8. compression air-filtering device as claimed in claim 1 or 2, which is characterized in that be provided on the upper entire body (1)
Relief valve (3), after the filter device internal pressure is higher than the secure threshold of setting, relief valve (3) automatic exhaust pressure relief.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340924.0A CN109351120A (en) | 2018-11-12 | 2018-11-12 | A kind of compression air-filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340924.0A CN109351120A (en) | 2018-11-12 | 2018-11-12 | A kind of compression air-filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109351120A true CN109351120A (en) | 2019-02-19 |
Family
ID=65345001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340924.0A Pending CN109351120A (en) | 2018-11-12 | 2018-11-12 | A kind of compression air-filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109351120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508104A (en) * | 2019-08-26 | 2019-11-29 | 陕西金源自动化科技有限公司 | A kind of top is into gas outlet type maintenance-free moisture absorber and its heating component and control method |
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2018
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| Title |
|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508104A (en) * | 2019-08-26 | 2019-11-29 | 陕西金源自动化科技有限公司 | A kind of top is into gas outlet type maintenance-free moisture absorber and its heating component and control method |
| CN110508104B (en) * | 2019-08-26 | 2021-11-05 | 陕西金源自动化科技有限公司 | Upper air inlet and outlet type maintenance-free moisture absorber, heating assembly thereof and control method |
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