CN111700329B - Portable human microenvironment cooling and drying system under airtight environment for epidemic prevention - Google Patents
Portable human microenvironment cooling and drying system under airtight environment for epidemic prevention Download PDFInfo
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- CN111700329B CN111700329B CN202010506518.8A CN202010506518A CN111700329B CN 111700329 B CN111700329 B CN 111700329B CN 202010506518 A CN202010506518 A CN 202010506518A CN 111700329 B CN111700329 B CN 111700329B
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/12—Surgeons' or patients' gowns or dresses
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D1/00—Garments
- A41D1/02—Jackets
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
- A41D13/005—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment with controlled temperature
- A41D13/0053—Cooled garments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
- A61L9/145—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes air-liquid contact processes, e.g. scrubbing
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- 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
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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
- B01D53/26—Drying gases or vapours
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2600/00—Uses of garments specially adapted for specific purposes
- A41D2600/20—Uses of garments specially adapted for specific purposes for working activities
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A portable human body microenvironment cooling and drying system under a closed environment for epidemic prevention comprises a jacket, a gas disinfection device, a gas pipeline, an external circulation gas pump, an internal circulation gas pump, a gas cooling device, a gas drying device, a battery, a control panel and a temperature sensor; the lower section of the jacket is provided with an external circulation air pump, an internal circulation air pump, an air cooling device, an air drying device, a battery, a control panel and a temperature sensor, and the external circulation air pump, the air cooling device, the air drying device and the internal circulation air pump are sequentially connected in series through an air pipeline; the outer circulation air pump is connected with an air disinfection device through an air pipeline, the air disinfection device is arranged on the outer side of the protective clothing, and air enters the protective clothing after being disinfected. The system adopts air circulation to cool the whole closed environment; the air drying device is arranged to ensure that blown air is dry and sweat can be sucked away, and air can be circulated externally to ensure that the air inside and outside circulates, so that the use is comfortable.
Description
Technical Field
The invention relates to the technical field of cooling and drying of human bodies, in particular to a portable cooling and drying system for a human body microenvironment in an airtight environment for epidemic prevention.
Background
Medical care personnel need to wear a closed protective garment in order to prevent infection in a special environment, high-strength labor is carried out, sweat of a human body cannot be discharged, the interior of the protective garment is particularly moist, heat cannot be dissipated in a closed-loop environment, the interior of the protective garment is particularly moist and hot, the fighting of the medical care personnel and a disease magic is greatly disturbed, and a portable human body microenvironment cooling and drying system in an epidemic prevention closed environment is provided in order to provide a good environment for white clothes and people in China; there are also some techniques for drying the human body, but there are some drawbacks: 1. in the prior art, a cooling device is attached to a human body to cool the human body, and the way is that the body is locally cold and hot, so that the body is extremely uncomfortable and the cold of a user is often caused; 2. the prior art can not dry a closed environment, and if a human body discharges sweat, the human body can not dry and wipe the sweat, so that the patient feels uncomfortable; 3. the prior art can not change the gas in the airtight environment, and the human body breathes always, will discharge carbon dioxide, and along with the increase of time, carbon dioxide piles up, can cause user's oxygen deficiency, dizziness etc..
Disclosure of Invention
In order to solve the problems, the invention provides a portable human body microenvironment cooling and drying system in an airtight environment for epidemic prevention; the system is used for drying and cooling the human body in the closed environment of the protective clothing during epidemic prevention.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
a portable human body microenvironment cooling and drying system under a closed environment for epidemic prevention comprises a jacket, a gas disinfection device, a gas pipeline, an external circulation gas pump, an internal circulation gas pump, a gas cooling device, a gas drying device, a battery, a control panel and a temperature sensor; the lower section of the jacket is provided with an external circulation air pump, an internal circulation air pump, an air cooling device, an air drying device, a battery, a control panel and a temperature sensor, and the external circulation air pump, the air cooling device, the air drying device and the internal circulation air pump are sequentially connected in series through an air pipeline; the outer circulation air pump is connected with an air disinfection device through an air pipeline, the air disinfection device is arranged on the outer side of the protective clothing, and air enters the protective clothing after being disinfected.
Further limiting, the gas disinfection device consists of a gas disinfection device shell, disinfection cotton, a disinfection liquid chamber, a plug, a gas inlet and a gas outlet, wherein the gas disinfection device shell is cylindrical, the disinfection filter cotton is filled in the gas disinfection device shell, the disinfection liquid chamber is arranged on the side surface of the gas disinfection device shell, disinfection liquid is placed in the disinfection liquid chamber, the plug is arranged on the outer side of the disinfection liquid chamber, a small opening is formed in the lower side of the disinfection liquid chamber, and the disinfection liquid can flow onto the disinfection cotton; the front end of the shell of the gas disinfection device is provided with a gas inlet, the rear end of the shell of the gas disinfection device is provided with a gas outlet, and gas is disinfected by disinfection cotton, so that the gas entering the protective clothing is ensured not to carry viruses.
Further limiting, the gas cooling device is composed of a gas cooling device shell, a cooling sheet, filling liquid and a U-shaped pipe, the cooling sheet is arranged in the gas cooling device shell, the filling liquid is arranged in the cooling sheet, the filling liquid is ice water, the U-shaped pipe is arranged in the ice water, and the U-shaped pipe is cooled through the ice water, so that the temperature of air flowing through the U-shaped pipe is reduced; the cooling piece adopts a semiconductor refrigeration piece.
The gas drying device is further limited to be composed of a gas drying device shell, a central partition plate, a gas drying pipe and a gas filtering pipe, wherein the central partition plate is arranged in the gas drying device shell and used for partitioning the inside of the gas drying device shell, one side of the gas drying pipe is provided with the gas drying pipe, and the other side of the gas drying pipe is provided with the gas filtering pipe; a drying agent is placed in the gas drying pipe and can absorb moisture in the air; the activated carbon adsorption cotton is placed in the gas filter pipe, and can filter air.
Further limiting, an air suction port is connected to a pipeline between the external circulation air pump and the air cooling device, a one-way valve is arranged in the air suction port, and the pipeline is communicated with air nozzles on two sides of the upper end of the jacket.
Further, the two external circulation air pumps are arranged, one is used for sucking air inwards, and the other is used for exhausting air outwards; the two air pumps are respectively connected with an air pipeline, and one-way valves are respectively arranged in the pipelines.
Further, the temperature sensor and the battery are both a temperature sensor and a battery in the prior art.
Further limiting, the control panel controls the external circulation air pump, the internal circulation air pump, the temperature sensor and the cooling sheet.
The invention also aims to provide a use method of the portable human microenvironment cooling and drying system in the airtight environment for epidemic prevention, which comprises the following steps:
step one, putting on a jacket and a protective garment, and connecting a gas pipeline with a gas disinfection device on the protective garment;
step two, setting the required temperature, starting internal circulation of air, refrigerating by a refrigerating sheet when the temperature rises by 2 ℃, and introducing external circulation of air when the temperature rises by 4 ℃ when the temperature continues to rise;
and step three, if the temperature does not rise, timing by the control panel, and starting the external circulation intervention after recording one hour to enable the gas in the protective clothing to fully flow out.
The beneficial effects of the invention are: a portable human microenvironment cooling and drying system under airtight environment for epidemic prevention has the following advantages:
1. the system is provided with an external circulation air pump and an internal circulation air pump, air flow is realized through the air pumps, heat is taken away through the air flow, the whole closed environment is cooled in the cooling mode, the human body is not cooled locally, the use is comfortable, an air outlet is formed in the neck, and air is blown to the head, so that the head which is most prone to sweating is cooled;
2. the air drying device is arranged, air circulates through the air drying device in a closed environment, the drying pipe of the air drying device absorbs moisture contained in the air, the blown air is dried, sweat can be absorbed, the filtering pipe can also filter the air, and the air sucked by a human body is fresh;
3. be provided with gaseous extrinsic cycle air pump and gaseous degassing unit, through entering into airtight environment with gaseous disinfection back in, guarantee inside and outside circulation of air, can not cause carbon dioxide to discharge too much under the airtight environment, use comfortable, the dizziness phenomenon of oxygen deficiency can not appear.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a portable human body microenvironment cooling and drying system in an airtight environment for epidemic prevention;
FIG. 2 is a schematic sectional view of the gas sterilizing apparatus;
FIG. 3 is a schematic cross-sectional view of the gas cooling device;
FIG. 4 is a schematic sectional view of the gas drying apparatus;
fig. 5 is a schematic operation flow diagram of the portable human body microenvironment cooling and drying system in the airtight environment for epidemic prevention.
In the drawings, the components represented by the respective reference numerals are listed below: 1-jacket, 2-gas disinfection device, 201-gas disinfection device shell, 202-disinfection cotton, 203-disinfection liquid chamber, 204-plug, 205-gas inlet, 206-gas outlet, 3-gas pipeline, 301-one-way valve, 302-gas inlet, 303-gas nozzle, 4-external circulation gas pump, 5-gas cooling device, 501-gas cooling device shell, 502-cooling sheet, 503-filling liquid, 504-U-shaped pipe, 6-gas drying device, 601-gas drying device, 602-central partition plate, 603-gas drying pipe, 604-gas filter pipe, 7-internal circulation gas pump, 8-battery, 9-control panel and 10-temperature sensor.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, a portable human microenvironment cooling and drying system for epidemic prevention in a closed environment comprises a jacket 1, a gas disinfection device 2, a gas pipeline 3, an external circulation gas pump 4, an internal circulation gas pump 7, a gas cooling device 5, a gas drying device 6, a battery 8, a control panel 9 and a temperature sensor 10; the lower section of the jacket 1 is provided with an external circulation air pump 4, an internal circulation air pump 7, an air cooling device 5, an air drying device 6, a battery 8, a control panel 9 and a temperature sensor 10, and the external circulation air pump 4, the air cooling device 5, the air drying device 6 and the internal circulation air pump 7 are sequentially connected in series through an air pipeline 3; the external circulation air pump 4 is connected with an air disinfection device 2 through an air pipeline 3, and the air disinfection device 2 is arranged on the outer side of the protective clothing and used for disinfecting air and then enabling the disinfected air to enter the protective clothing.
The gas disinfection device 2 consists of a gas disinfection device shell 201, disinfection cotton 202, a disinfection liquid chamber 203, a plug 204, a gas inlet 205 and a gas outlet 206, wherein the gas disinfection device shell 201 is cylindrical, the disinfection filter cotton 202 is filled in the gas disinfection device shell, the disinfection liquid chamber 203 is arranged on the side surface, disinfection liquid is placed in the gas disinfection device shell, the plug 204 is arranged on the outer side of the disinfection liquid chamber 203, a small opening is formed in the lower side of the disinfection liquid chamber 203, and the disinfection liquid can flow onto the disinfection cotton 202; the front end of the shell 201 of the gas disinfection device is provided with a gas inlet 205, the rear end of the shell is provided with a gas outlet 206, and gas is disinfected by the disinfection cotton 202, so that the gas entering the protective clothing is ensured not to carry viruses.
The gas cooling device 5 comprises a gas cooling device shell 501, a cooling sheet 502, filling liquid 503 and a U-shaped pipe 504, wherein the cooling sheet 502 is arranged in the gas cooling device shell 501, the filling liquid 603 is arranged in the cooling sheet 502, the filling liquid 603 is ice water, the U-shaped pipe 504 is arranged in the ice water, and the U-shaped pipe 504 is cooled by the ice water, so that the temperature of air flowing through the U-shaped pipe 504 is reduced; the cooling fins 502 are semiconductor cooling fins.
The gas drying device 6 comprises a gas drying device shell 601, a central partition 602, a gas drying pipe 603 and a gas filtering pipe 604, wherein the gas drying device shell 601 is internally provided with the central partition 602 which partitions the inside, one side of the gas drying device shell is provided with the gas drying pipe 603, and the other side of the gas drying device shell is provided with the gas filtering pipe 604; a drying agent is placed in the gas drying pipe 603, and can absorb moisture in the air; the gas filter pipe 604 is internally provided with activated carbon adsorption cotton which can filter air.
The pipeline between the external circulation air pump 4 and the air cooling device 5 is connected with an air suction port 302, a one-way valve 301 is arranged in the air suction port 302, and the pipeline 3 is communicated with air nozzles 303 at two sides of the upper end of the jacket. The external circulation air pumps 4 are provided with two air pumps, one air pump sucks air inwards and the other air pump exhausts air outwards; the two air pumps are respectively connected with the air pipelines 3, and the pipelines are respectively provided with one-way valves 301. The temperature sensor 10 and the battery 8 are both a temperature sensor and a battery in the prior art. The control panel 9 controls the external circulation air pump 4, the internal circulation air pump 7, the temperature sensor 10 and the cooling sheet 502.
One embodiment of the present invention:
in specific implementation, a user wears the jacket 1 and the protective clothing and connects the gas pipeline 3 with the gas disinfection device 2 on the protective clothing; setting the required temperature, starting internal circulation of air, refrigerating the air by the refrigerating sheet 502 when the temperature rises by 2 ℃, and detecting that the temperature rises by 4 ℃ if the temperature continues to rise, and introducing external circulation of air; if the temperature does not rise, the control panel 9 is also accounted, and the external circulation intervention is opened after recording one hour, so that the gas in the protective clothing can fully flow out; the air circulation will pass through air drying device 6, is provided with gas drying tube 603 and gas filter pipe 604 in the device, and gas drying tube 603 is dry to the gas, absorbs the moisture in the gas, and the dry gas of discharge can absorb the sweat, and gas filter pipe will absorb the absorbable particle in the air, guarantees that the air is fresh, and is good to the health.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. A portable human body microenvironment cooling and drying system under a closed environment for epidemic prevention is characterized by comprising a jacket, a gas disinfection device, a gas pipeline, an external circulation gas pump, an internal circulation gas pump, a gas cooling device, a gas drying device, a battery, a control panel and a temperature sensor; the lower section of the jacket is provided with an external circulation air pump, an internal circulation air pump, an air cooling device, an air drying device, a battery, a control panel and a temperature sensor, and the external circulation air pump, the air cooling device, the air drying device and the internal circulation air pump are sequentially connected in series through an air pipeline; the external circulation air pump is connected with an air disinfection device through an air pipeline, and the air disinfection device is arranged on the outer side of the protective clothing; the gas disinfection device comprises a gas disinfection device shell, disinfection cotton, a disinfection liquid chamber, a plug, a gas inlet and a gas outlet, wherein the gas disinfection device shell is cylindrical, the disinfection filter cotton is filled in the gas disinfection device shell, the disinfection liquid chamber is arranged on the side surface of the gas disinfection device shell, disinfection liquid is placed in the disinfection liquid chamber, the plug is arranged on the outer side of the disinfection liquid chamber, and a small opening is formed in the lower side of the disinfection liquid chamber; the front end of the shell of the gas disinfection device is provided with a gas inlet, and the rear end of the shell of the gas disinfection device is provided with a gas outlet;
the gas cooling device consists of a gas cooling device shell, a cooling sheet, filling liquid and U-shaped pipes, wherein the cooling sheet is arranged in the gas cooling device shell, the filling liquid is arranged in the cooling sheet, the filling liquid is ice water, the U-shaped pipes are arranged in the ice water, and the cooling sheet is a semiconductor refrigeration sheet;
the gas drying device consists of a gas drying device shell, a central partition plate, a gas drying pipe and a gas filtering pipe, wherein the central partition plate is arranged in the gas drying device shell and divides the interior, one side of the gas drying pipe is the gas drying pipe, and the other side of the gas filtering pipe is the gas filtering pipe; a drying agent is placed in the gas drying tube; activated carbon adsorption cotton is placed in the gas filtering pipe;
the pipeline between the external circulation air pump and the air cooling device is connected with an air suction port, a one-way valve is arranged in the air suction port, and the pipeline is communicated with air nozzles at two sides of the upper end of the jacket; the two external circulation air pumps are arranged, one is used for sucking air inwards, and the other is used for exhausting air outwards; the two air pumps are respectively connected with an air pipeline, and one-way valves are respectively arranged in the pipelines;
the using method specifically comprises the following steps:
step one, putting on a jacket and a protective garment, and connecting a gas pipeline with a gas disinfection device on the protective garment;
step two, setting the required temperature, starting internal circulation of air, refrigerating by a refrigerating sheet when the temperature rises by 2 ℃, and introducing external circulation of air when the temperature rises by 4 ℃ when the temperature continues to rise;
and step three, if the temperature does not rise, timing by the control panel, and recording that the external circulation intervention is opened within one hour to ensure that the gas in the protective clothing flows out fully.
2. The portable human microenvironment cooling and drying system under the airtight environment for epidemic prevention according to claim 1, wherein the temperature sensor and the battery are both the temperature sensor and the battery in the prior art.
3. The portable human microenvironment cooling and drying system under the airtight environment for epidemic prevention according to claim 1, wherein the control panel controls the external circulation air pump, the internal circulation air pump, the temperature sensor and the cooling sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010506518.8A CN111700329B (en) | 2020-06-05 | 2020-06-05 | Portable human microenvironment cooling and drying system under airtight environment for epidemic prevention |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010506518.8A CN111700329B (en) | 2020-06-05 | 2020-06-05 | Portable human microenvironment cooling and drying system under airtight environment for epidemic prevention |
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| CN111700329A CN111700329A (en) | 2020-09-25 |
| CN111700329B true CN111700329B (en) | 2022-10-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112167750A (en) * | 2020-10-12 | 2021-01-05 | 上海健康医学院 | Medical protective clothing with air conditioning function and working method thereof |
| CN112859973A (en) * | 2021-02-02 | 2021-05-28 | 邱子轩 | Method and device for cooling and dehumidifying environment in protective clothing |
| CN113854677A (en) * | 2021-10-26 | 2021-12-31 | 西南医科大学附属医院 | Temperature and humidity real-time display waistcoat capable of automatically cooling and dehumidifying |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2633040Y (en) * | 2003-06-20 | 2004-08-18 | 林梓球 | Air exchanging medical protective clothes for preventing virus |
| DE102008019513B3 (en) * | 2008-04-18 | 2009-08-27 | Dräger Safety AG & Co. KGaA | Protective clothing for use in chemical industry, has blower to circulate air in inner area, and supply provided for coolant for moistening of porous material, where supply is water tank attached to outer side of clothing |
| TWM479093U (en) * | 2013-09-17 | 2014-06-01 | Dong-Han Liu | Rapid liquid cooling device |
| CN107319861B (en) * | 2016-04-28 | 2018-11-06 | 张弘毅 | Intelligent temperature control quilt |
| CN106552490A (en) * | 2016-11-18 | 2017-04-05 | 广西大学 | A kind of chemical industry exhaust gas cleaner |
| CN106828012B (en) * | 2016-12-29 | 2019-06-28 | 惠州华阳通用电子有限公司 | A kind of on-board air conditioner circulation pattern control method |
| CN107296307A (en) * | 2017-06-23 | 2017-10-27 | 芜湖启尊智能科技有限公司 | One kind can wear heat sink |
| KR102056913B1 (en) * | 2017-08-21 | 2020-01-08 | 강성광 | Cooling System with Clothes and the Composition Method |
| CN108741290A (en) * | 2018-06-19 | 2018-11-06 | 山东省疾病预防控制中心 | A kind of excessively high apparatus and method of solution protective garment inside humiture |
| CN109367349B (en) * | 2018-10-09 | 2020-06-05 | 珠海格力电器股份有限公司 | Intelligent temperature regulating system and method for remotely monitoring automobile |
| KR102008806B1 (en) * | 2018-11-12 | 2019-10-21 | 주식회사 써지랩 | Closed loop system for circulating a heat exchange fluid |
| CN111109725A (en) * | 2020-03-09 | 2020-05-08 | 郭艳军 | Safe ventilation medical protective clothing with cooling function |
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