CN109529563A - A kind of purifying carbon dioxide device and carbon-dioxide absorbent pack - Google Patents

A kind of purifying carbon dioxide device and carbon-dioxide absorbent pack Download PDF

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Publication number
CN109529563A
CN109529563A CN201811501647.7A CN201811501647A CN109529563A CN 109529563 A CN109529563 A CN 109529563A CN 201811501647 A CN201811501647 A CN 201811501647A CN 109529563 A CN109529563 A CN 109529563A
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China
Prior art keywords
carbon dioxide
carbon
centrifugal blower
automatic control
dioxide
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CN201811501647.7A
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Chinese (zh)
Inventor
徐浩星
牛同锋
鲁国林
崔兵彦
周渝淞
刘红
胡发灵
姚俊
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Hubei Institute of Aerospace Chemical Technology
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Hubei Institute of Aerospace Chemical Technology
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Priority to CN201811501647.7A priority Critical patent/CN109529563A/en
Publication of CN109529563A publication Critical patent/CN109529563A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/30Controlling by gas-analysis apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/62Carbon oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/30Alkali metal compounds
    • B01D2251/302Alkali metal compounds of lithium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/60Inorganic bases or salts
    • B01D2251/604Hydroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/50Carbon oxides
    • B01D2257/504Carbon dioxide
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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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)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The present invention relates to a kind of purifying carbon dioxide device and carbon-dioxide absorbent pack, which includes gas concentration lwevel detection unit, automatic control unit, centrifugal blower (3) and clean room (2);The gas concentration lwevel detection unit is connect with the automatic control unit;The automatic control unit is connect with the centrifugal blower (3);The air outlet of the centrifugal blower (3) is connect with the air inlet of the clean room (2), and carbon-dioxide absorbent pack is pre-installed in the clean room (2).The purifying carbon dioxide device can reach preset value automatically according to the revolving speed of gas concentration lwevel adjustment centrifugal blower in confined space, the gas concentration lwevel adjusted in confined space.

Description

A kind of purifying carbon dioxide device and carbon-dioxide absorbent pack
Technical field
The present invention relates to air in closed space purification techniques fields, in particular to a kind of for submarine, survival capsule and ground Purifying carbon dioxide device and carbon-dioxide absorbent pack in the confined spaces such as lower tunnel.
Background technique
In the someone such as closed tunnel, mine escape capsule, manned spacecraft and deep sea submarine emergency survival or operation The confined space in, in order to guarantee the life security of personnel, need five overall situation parameter (total gas pressures, oxygen in confined space Partial pressure, carbon dioxide divide (CO2), temperature and humidity) and the control of some trace harmful gases human comfort range it It is interior.It was found that the main pollutant generated in closed living space is CO2, vapor, effluvium and thermal pollution.Wherein The CO of one day output for each person2Total amount is about 490L (standard state, about 0.34L/min or 20.4L/h), removes confined air immediately The CO that interior personnel generate2, make CO in confined space2Concentration maintain lower level as far as possible, be to ensure that human health with The key of life security.
Existing purifying carbon dioxide device cannot automatically adjust operation according to the variation of ambient carbon dioxide concentration, deposit It is poor in the degree of automation, the defects of operating noise is big.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above deficiencies, provide one kind to remove human body in confined space automatically It is metabolized the carbon dioxide generated, gas concentration lwevel is controlled into the carbon dioxide in 1% range human-acceptable below Purification device and carbon-dioxide absorbent pack.
The present invention is achieved by the following technical solutions:
A kind of purifying carbon dioxide device, the device include gas concentration lwevel detection unit, automatic control unit, centrifugation Blower and clean room;The gas concentration lwevel detection unit is connect with the automatic control unit, closed for real-time detection The concentration value of space carbon dioxide, and send the concentration value of the carbon dioxide to the automatic control unit;It is described from Dynamic control unit is connect with the centrifugal blower, when for being higher than the lower limit value of setting when the concentration value of the carbon dioxide, institute It states automatic control unit and starts the centrifugal blower, and adjust the revolving speed of the centrifugal blower, when the concentration of the carbon dioxide When value is lower than the lower limit value set, the automatic control unit closes the centrifugal blower;The air outlet of the centrifugal blower with The air inlet of the clean room connects, and carbon-dioxide absorbent pack is pre-installed in the clean room.
Further, a kind of purifying carbon dioxide device, the gas concentration lwevel detection unit use dioxy Change carbon transmitter comprising infrared carbon dioxide sensor and data output interface with dual-beam dual-wavelength measurement function.
Further, a kind of purifying carbon dioxide device, the automatic control unit include PLC touch screen one Machine and frequency converter, the gas concentration lwevel detection unit are connect with the PLC touch screen integrated machine, the PLC touch screen one Body machine is connect with the frequency converter, and the frequency converter is connect with the centrifugal blower.
Further, a kind of purifying carbon dioxide device, which further includes cabinet, and the automatic control is single First, the described centrifugal blower and the clean room are set to the box house, and the gas concentration lwevel detection unit is set to Outside the cabinet.
Further, a kind of purifying carbon dioxide device, which further includes remote control unit comprising remote Process control interface, the remote control interface are connect with the automatic control unit.
A kind of carbon-dioxide absorbent pack, the carbon-dioxide absorbent pack include several layers stainless steel mesh adsorbent bed It overlaps, lithium hydroxide powder is loaded between every two layers of stainless steel mesh adsorbent bed.
Further, the carbon-dioxide absorbent pack, the number of plies of the stainless steel mesh adsorbent bed are 8 to 10 Layer.
Further, the preparation method of the carbon-dioxide absorbent pack, the lithium hydroxide powder is, in proportion Monohydrate lithium hydroxide is uniformly mixed with nine water sodium metasilicate of binder, then is suppressed on rotary pelleting machine using mesoporous pressing mold After molding, drying removal moisture content.
Further, the carbon-dioxide absorbent pack, the monohydrate lithium hydroxide and nine water silicon of binder The mixed proportion of sour sodium is 99:1.
Further, the carbon-dioxide absorbent pack, the outer diameter of the lithium hydroxide powder is 5mm~6mm, high Degree is 4mm~6mm, and median pore radius is 1mm~2mm.
The advantages and effects of the present invention are:
1. purifying carbon dioxide device provided by the invention has gas concentration lwevel detection unit and automatic control unit, Can be automatically according to the revolving speed of gas concentration lwevel adjustment centrifugal blower in confined space, the carbon dioxide adjusted in confined space is dense Degree reaches preset value.
2. purifying carbon dioxide plant automation degree provided by the invention is high, performance is more excellent, more convenient to use, Energy conservation.
3. carbon-dioxide absorbent pack provided by the invention uses the lithium hydroxide powder of Intermediate Gray through-hole, make hydroxide The specific surface area of lithium powder significantly increases, so as to accelerate the absorption rate to carbon dioxide.And use several layers stainless steel Netted adsorbent bed comes lithium hydroxide powder is evenly dispersed, significantly reduces a large amount of lithium hydroxide powders to fan outlet gas The resistance of stream further enhances the absorption rate to carbon dioxide to accelerate the circulation of confined space interior air-flow.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of purifying carbon dioxide device provided by the invention;
Fig. 2 shows the structural schematic diagrams of carbon-dioxide absorbent pack provided by the invention.
Description of symbols: 1- cabinet, the clean room 2-, 3- centrifugal blower, 4- frequency converter, 5- power switch, 6- titanium dioxide Carbon transmitter, 7-PLC touch screen integrated machine, 8- remote control interface, 9- stainless steel mesh adsorbent bed, 10- lithium hydroxide powder.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below with reference in the embodiment of the present invention Attached drawing, technical solution in the embodiment of the present invention are further described in more detail.Described embodiment is of the invention one Section Example, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used for It explains the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, those skilled in the art are not having Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.Below with reference to The embodiment of the present invention is described in detail in attached drawing:
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention The limitation of range.
Fig. 1 shows the structural schematic diagram of purifying carbon dioxide device provided by the invention.The purifying carbon dioxide device packet Include gas concentration lwevel detection unit, automatic control unit, centrifugal blower 3 and clean room 2.Gas concentration lwevel detection unit with Automatic control unit connection, for the concentration value of carbon dioxide in real-time detection confined space, and by the concentration value of carbon dioxide Send automatic control unit to.Automatic control unit is connect with centrifugal blower 3, is higher than setting for the concentration value when carbon dioxide Lower limit value when, automatic control unit starts centrifugal blower 3, and the revolving speed of centrifugal blower 3 is adjusted, when the concentration value of carbon dioxide Lower than setting lower limit value when, automatic control unit closes the centrifugal blower 3.The air outlet of centrifugal blower 3 and clean room 2 Air inlet connection, clean room 2 is interior to pre-install carbon-dioxide absorbent pack.Centrifugal blower 3 uses internal rotor asynchronous machine, has body Small, the light-weight advantage of product, and have Thermal protection automatic shutdown function.
Gas concentration lwevel detection unit uses carbon dioxide transmitter 6 comprising has dual-beam dual-wavelength measurement function The infrared carbon dioxide sensor and data output interface of energy, infrared titanium dioxide have sensor for detecting two in confined space The concentration of carbonoxide, data output interface is for connecting automatic control unit, the dioxy that infrared carbon dioxide sensor is detected The concentration value for changing carbon is transferred to automatic control unit, has the advantages that measurement accuracy height and stability are good.
Automatic control unit includes PLC touch screen integrated machine 7 and frequency converter 4, gas concentration lwevel detection unit (titanium dioxide Carbon transmitter 6) it is connect with PLC touch screen integrated machine 7, PLC touch screen integrated machine 7 is connect with frequency converter 4, frequency converter 4 and centrifugation Blower 3 connects.Frequency converter 4 using PWM type control frequency converter, can neatly be adjusted according to the instruction of PLC touch screen integrated machine 7 from The revolving speed of heart blower 3 realizes energy conservation and noise reduction, and improves the service life of centrifugal blower.What PLC touch screen integrated machine 7 used It is EX2N-70H type industry all-in-one machine, which has the advantages that highly integrated, installation space is small low with maintenance cost.
The purifying carbon dioxide device further includes cabinet 1, automatic control unit (PLC touch screen integrated machine 7 and frequency converter 4), centrifugal blower 3 and clean room 2 are set to the inside of cabinet 1, gas concentration lwevel detection unit (carbon dioxide transmitter 6) It is set to the outside of cabinet 1.Particularly, clean room 2 is located at the upper half in cabinet 1, and centrifugal blower 3 and frequency converter 4 are located at On the pedestal of lower half in cabinet 1, PLC touch screen integrated machine 7 is located at the front of cabinet 1, and wherein touch screen is convenient for people outwardly Member's operation, carbon dioxide transmitter 6 are installed on the side of cabinet 1.The shape ruler of the purifying carbon dioxide device after assembling It is very little about are as follows: 380mm (length) × 330mm (width) × 550mm (height) weighs about 25kg.
The purifying carbon dioxide device further includes remote control unit and power switch, and remote control unit includes long-range control Interface 8 processed, remote control interface 8 are connect with automatic control unit.
When needing using the purifying carbon dioxide device, carbon-dioxide absorbent pack is packed into clean room 2 in advance, Power on switch 5 and open the purifying carbon dioxide device, PLC touch screen integrated machine 7 issues command detection confined space immediately The concentration of interior carbon dioxide.The concentration of the carbon dioxide of 6 real-time detection confined space of carbon dioxide transmitter, and numerical value is transmitted To PLC touch screen integrated machine 7.When the concentration value of carbon dioxide is higher than lower limit value (such as 0.2%) of setting, PLC touch screen one Body machine 7 starts centrifugal blower 3, and frequency converter 4 adjusts the revolving speed of centrifugal blower 3, and confined space is included higher concentration by centrifugal blower 3 The air circulation of carbon dioxide flows through the carbon-dioxide absorbent pack in clean room 2, and the carbon dioxide in air will be by big portion That divides sponges, and purified air is again returned in confined space and breathed for people.With the raising of the concentration of carbon dioxide, PLC touch screen integrated machine increases the revolving speed of centrifugal blower to the maximum value of centrifugal blower revolving speed.When carbon dioxide in confined space Concentration when rising to 1.0% or more, PLC touch screen integrated machine provides alarm signal, prompts to need replacing two in clean room 2 Aoxidize absorbent carbon pack.When lower limit value of the concentration value of carbon dioxide lower than setting, PLC touch screen integrated machine issues instruction Close centrifugal blower 3.When the concentration for detecting carbon dioxide in confined space again is more than the lower limit value of setting, PLC touch screen All-in-one machine control centrifugal blower starts work automatically again, to realize the self-purging to carbon dioxide in confined space.It should Purifying carbon dioxide device is also provided with hand-operated forced starting and shuts down and remote control function, remote control interface 8 equipped with USB interface and RJ45 interface facilitate the output of data, and can access network by cable, realize long-range control.
The carbon-dioxide absorbent pack pre-installed in the purifying carbon dioxide device includes the absorption of several layers stainless steel mesh Bed 9 overlaps, and lithium hydroxide powder 10 is loaded between every two layers of stainless steel mesh adsorbent bed.Particularly, stainless (steel) wire The number of plies of shape adsorbent bed 9 is 8 to 10 layers.The hydroxide of about 0.4kg~0.6kg is loaded between every two layers of stainless steel mesh adsorbent bed Lithium powder, stainless steel mesh adsorbent bed 9 are about 310mm~330mm, wide about 230mm~250mm, the high about 13mm~15mm of layer.If The surrounding of dried layer stainless steel mesh adsorbent bed 9 is closed using the stainless steel plate of 0.5mm thickness by laser spot welding, is first closed Three sides therein, after the completion of the filling of lithium hydroxide powder 10, a re-closed remaining side.
The preparation method of lithium hydroxide powder is in proportion to mix monohydrate lithium hydroxide with nine water sodium metasilicate of binder It is even, then using after mesoporous pressing mold compression moulding on rotary pelleting machine, drying removes moisture content.The hydrogen of the method preparation Lithia powder has the characteristics that high-selenium corn efficiency and self raising flour dust content.Particularly, 99% or more monohydrate lithium hydroxide accounting, Nine 1% or less water sodium metasilicate accounting of binder.Preferably, the mass ratio of monohydrate lithium hydroxide and nine water sodium metasilicate of binder For 99:1.The outer diameter of lithium hydroxide powder is 5mm~6mm, is highly 4mm~6mm, and the aperture of intermediate throughholes is 1mm~2mm. Through-hole among powder makes the total surface area of lithium hydroxide powder increase 25% or so, so as to accelerate the suction to carbon dioxide Receive rate.
The above embodiments are merely illustrative of the technical solutions of the present invention, practical range not for the purpose of limiting the invention.But All equivalence changes and modification done within the scope of the present invention, have all been deemed to fall in protection scope of the present invention.

Claims (10)

1. a kind of purifying carbon dioxide device, which is characterized in that the device includes gas concentration lwevel detection unit, automatically controls Unit, centrifugal blower (3) and clean room (2);The gas concentration lwevel detection unit is connect with the automatic control unit, is used The automatic control is sent in the concentration value of carbon dioxide in real-time detection confined space, and by the concentration value of the carbon dioxide Unit processed;The automatic control unit is connect with the centrifugal blower (3), is higher than for the concentration value when the carbon dioxide and is set When fixed lower limit value, the automatic control unit starts the centrifugal blower (3), and adjusts the revolving speed of the centrifugal blower (3), When lower limit value of the concentration value of the carbon dioxide lower than setting, the automatic control unit closes the centrifugal blower (3); The air outlet of the centrifugal blower (3) is connect with the air inlet of the clean room (2), and titanium dioxide is pre-installed in the clean room (2) Absorbent carbon pack.
2. a kind of purifying carbon dioxide device according to claim 1, which is characterized in that the gas concentration lwevel detection Unit uses carbon dioxide transmitter (6) comprising the infrared carbon dioxide sensor with dual-beam dual-wavelength measurement function And data output interface.
3. a kind of purifying carbon dioxide device according to claim 1, which is characterized in that the automatic control unit includes PLC touch screen integrated machine (7) and frequency converter (4), the gas concentration lwevel detection unit and the PLC touch screen integrated machine (7) it connects, the PLC touch screen integrated machine (7) connect with the frequency converter (4), the frequency converter (4) and the centrifugal blower Connection.
4. a kind of purifying carbon dioxide device according to claim 1, which is characterized in that the device further includes cabinet (1), The automatic control unit, the centrifugal blower (3) and the clean room (2) are set to the cabinet (1) inside, the dioxy Change concentration of carbon detection unit and is set to the cabinet (1) outside.
5. a kind of purifying carbon dioxide device according to claim 1, which is characterized in that the device further includes remotely controlling Unit comprising remote control interface (8), the remote control interface (8) connect with the automatic control unit.
6. a kind of carbon-dioxide absorbent pack, which is characterized in that the carbon-dioxide absorbent pack includes several layers stainless steel Netted adsorbent bed (9) overlaps, and loads lithium hydroxide powder (10) between every two layers of stainless steel mesh adsorbent bed.
7. carbon-dioxide absorbent pack according to claim 6, which is characterized in that the stainless steel mesh adsorbent bed (9) the number of plies is 8 to 10 layers.
8. carbon-dioxide absorbent pack according to claim 6, which is characterized in that the preparation of the lithium hydroxide powder Method is in proportion to be uniformly mixed monohydrate lithium hydroxide with nine water sodium metasilicate of binder, then use on rotary pelleting machine After hole pressing mold compression moulding, 12h~15h is dried at 130 DEG C~150 DEG C and removes moisture content.
9. carbon-dioxide absorbent pack according to claim 8, which is characterized in that the monohydrate lithium hydroxide with it is described The mixed proportion of nine water sodium metasilicate of binder is 99:1.
10. carbon-dioxide absorbent pack according to claim 8, which is characterized in that outside the lithium hydroxide powder Diameter is 5mm~6mm, is highly 4mm~6mm, and the aperture of intermediate throughholes is 1mm~2mm.
CN201811501647.7A 2018-12-10 2018-12-10 A kind of purifying carbon dioxide device and carbon-dioxide absorbent pack Pending CN109529563A (en)

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CN110141951A (en) * 2019-05-08 2019-08-20 陕西航天西诺美灵电气有限公司 A kind of absorption unit of dioxide carbon and method
CN110141959A (en) * 2019-05-08 2019-08-20 陕西航天西诺美灵电气有限公司 A kind of emergency carbon dioxide removal device and method
CN112774427A (en) * 2020-12-31 2021-05-11 陕西航天西诺美灵电气有限公司 Integrated carbon dioxide absorption device and method
CN115253628A (en) * 2022-08-24 2022-11-01 国家深海基地管理中心 Carbon dioxide efficient absorption device of manned submersible
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Cited By (7)

* Cited by examiner, † Cited by third party
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CN110141951A (en) * 2019-05-08 2019-08-20 陕西航天西诺美灵电气有限公司 A kind of absorption unit of dioxide carbon and method
CN110141959A (en) * 2019-05-08 2019-08-20 陕西航天西诺美灵电气有限公司 A kind of emergency carbon dioxide removal device and method
CN112774427A (en) * 2020-12-31 2021-05-11 陕西航天西诺美灵电气有限公司 Integrated carbon dioxide absorption device and method
WO2022262312A1 (en) * 2021-06-16 2022-12-22 重庆海尔空调器有限公司 Method and apparatus for controlling carbon dioxide adsorption module, and smart air conditioner
CN115253628A (en) * 2022-08-24 2022-11-01 国家深海基地管理中心 Carbon dioxide efficient absorption device of manned submersible
CN115675799A (en) * 2022-11-16 2023-02-03 中国人民解放军海军特色医学中心 System and method for monitoring use state of carbon dioxide absorbent in absorbent tank
CN115675799B (en) * 2022-11-16 2023-05-19 中国人民解放军海军特色医学中心 System and method for monitoring carbon dioxide absorbent usage in an absorbent tank

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Application publication date: 20190329