CN111053306A - Device and method for cooling and dehumidifying microclimate inside protective clothing - Google Patents
Device and method for cooling and dehumidifying microclimate inside protective clothing Download PDFInfo
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- CN111053306A CN111053306A CN202010172900.XA CN202010172900A CN111053306A CN 111053306 A CN111053306 A CN 111053306A CN 202010172900 A CN202010172900 A CN 202010172900A CN 111053306 A CN111053306 A CN 111053306A
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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
- 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
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- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The invention relates to a microclimate cooling and dehumidifying device and a microclimate cooling and dehumidifying method inside protective clothing, which comprises a micro air pump, a micro water pump, a cooler and a gas-liquid separator, wherein the micro air pump is connected with the micro water pump; a clapboard with holes is arranged in the cooler, the clapboard divides the cavity of the cooler into a cooling cavity at the bottom and a water absorption cavity at the upper part, the cooling cavity is filled with a refrigerant, and the water absorption cavity is internally provided with super absorbent resin; the gas-liquid separator comprises an upper end gas inlet, an upper end gas outlet and a lower end liquid outlet; one end of the micro air pump is connected with the air inlet pipe, the other end of the micro air pump is connected with a first pipeline, and the first pipeline penetrates through the cooling cavity and is connected with an upper end gas inlet; the upper end gas outlet is connected with a dryer, and the dryer is connected with a gas outlet pipe; the lower end liquid outlet is connected with a micro water suction pump, the micro water suction pump is connected with a second pipeline, and the second pipeline is connected with the cooler and inserted into the cooling cavity. The method of the invention utilizes the waste water separated out to cool the gas in the first pipeline in the cooling cavity, and the waste water is utilized without weight increment, temperature reduction and humidity reduction, thereby achieving two purposes.
Description
Technical Field
The invention relates to the technical field of instruments for disease prevention and control, in particular to a microclimate cooling and dehumidifying device and method inside protective clothing.
Background
The protective clothing comprises chemical protective clothing, fire-fighting protective clothing, industrial protective clothing, medical protective clothing, military protective clothing and protective clothing used by special people. These kinds of protective clothing are mainly applied to the industries and departments of medical treatment, fire fighting, military industry, ships, petroleum, chemical industry, paint spraying, cleaning and disinfection, laboratories and the like.
Medical care personnel and quarantine personnel (hereinafter referred to as operators) who control infectious diseases need to wear a tight and airtight protective clothing and wear protective eyepieces. Because the protective clothing must be airtight, toxic substances, viruses, bacteria and the like can be effectively isolated. After an operator works for tens of minutes to several hours, due to poor air permeability of the protective clothing, microclimate inside the protective clothing is in a state of high temperature (heat is generated by heat dissipation of human bodies) and high humidity (moisture is generated by perspiration of human bodies), so that the clothing worn by the operator is partially soaked or the whole body is thoroughly wetted. It has been reported that the medical care provider begins to sweat about 30 minutes after wearing the protective garment, and that a 4 hour sweat volume is able to completely wet through the upper garment.
The "high temperature and high humidity" state of the microclimate inside the protective clothing brings serious impact on the health of the operators. When the external environment temperature of the human body is too high and the heat dissipation is poor, the body temperature adjusting function of the human body is influenced, so that the body feeling is uncomfortable, and adverse reactions such as body temperature rise, vasodilatation, pulse acceleration, heart rate acceleration and the like are caused. The body feeling of the operator is not only affected by the temperature but also affected by the relative humidity, and is a result of the combined action of the two in most cases. When the relative humidity is higher than 80%, the human body feels uncomfortable no matter what the temperature is; especially, when the relative humidity is higher than 80% and the temperature is higher than 34 ℃, the operator feels uncomfortable.
Chinese patent CN108741290A discloses a "device for solving the problem of high temperature and humidity inside protective clothing", in which a semiconductor refrigeration component is arranged outside the protective clothing, and the device enters the protective clothing through an air passage interface, but the semiconductor refrigeration component relates to the problem of heat dissipation of a hot plate corresponding to cold plate refrigeration, and is not suitable for disposable protective clothing.
Chinese patent CN88215539.3 discloses a high-temperature-resistant polymer ice garment, which can reduce the damage of high temperature to important parts of human body, and is beneficial to the health of workers, but the ice bag is overweight, which is not beneficial to the movement and work of operators, and most crucial, it can not dehumidify.
To current protective clothing, especially medical protective clothing, the ubiquitous problem is: because of the poor moisture permeability of the protective clothing, after an operator wears the protective clothing for a long time, the heat and a large amount of sweat of a human body in the protective clothing can not be discharged, so that the microclimate in the protective clothing is changed into a high-temperature high-humidity state, and the discomfort of the operator is caused.
Disclosure of Invention
In order to solve the technical problem that the microclimate inside the protective clothing is changed into a high-temperature high-humidity state after an operator wears the protective clothing for a long time, so that the operator feels uncomfortable, a device and a method for cooling and dehumidifying the microclimate inside the protective clothing are provided. The device can effectively cool and dehumidify the microclimate in the protective clothing after the operator wears the protective clothing for a long time.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a device that inside microclimate of protective clothing cooled down and dehumidified which characterized in that: comprises a micro air pump, a cooler and a gas-liquid separator;
the cooler is a closed container, a partition plate with holes is arranged in the cooler, the partition plate divides a cavity of the cooler into a cooling cavity at the bottom and a water absorption cavity at the upper part, a refrigerant is filled in the cooling cavity, and super absorbent resin is arranged in the water absorption cavity; the gas-liquid separator comprises an upper end gas inlet, an upper end gas outlet and a lower end liquid outlet;
one end of the micro air pump is connected with an air inlet pipe, the other end of the micro air pump is connected with a first pipeline, and the first pipeline penetrates through the cooling cavity and is connected with the upper end gas inlet; the upper end gas outlet is connected with a dryer, and the dryer is connected with the gas outlet pipe; the lower end liquid outlet is connected with a miniature water suction pump, the miniature water suction pump is connected with a second pipeline, and the second pipeline is connected with the cooler and inserted into the cooling cavity.
Further, the cooler is provided with a cooler body and a cover, wherein the cooler cover is provided with a pressure release valve and a sealing ring for sealing the cooler body. The cooler body of the cooler is sealed into a closed container by a sealing ring on the cover. When the water of separation is more, the water of pouring into the cooler is excessive, causes the cooler internal pressure too big, and the relief valve carries out the pressure release according to the pressure that sets for this moment, avoids the cooler internal pressure too big and bursts.
Further, the power supply is further included, and the power supply voltage of the power supply is 5V or 12V.
Further, the dryer has a desiccant therein. The desiccant can be silica gel, montmorillonite desiccant, molecular sieve, active mineral desiccant, etc.
Further, the amount of the super absorbent resin used is 100g to 500 g.
Further, the part of the first pipeline, which is positioned in the cooling cavity, is a copper pipe heat exchanger. The heat exchange efficiency of the copper pipe heat exchanger is high.
Further, the refrigerant is a neutral solid substance which can generate endothermic reaction when meeting water. The refrigerant is a neutral non-corrosive solid substance and does not contain explosive materials.
Preferably, the refrigerant is a carbamide solid or a sodium thiosulfate solid.
Further, the using amount of the refrigerant is 200 g-1000 g.
The invention provides a method for cooling and dehumidifying by microclimate inside protective clothing,
wearing the device, and turning on a power supply, wherein the power supply controls the micro air suction pump and the micro water suction pump to start working; the micro air pump pumps the microclimate in the protective suit into the first pipeline through the air inlet pipe, the microclimate in the first pipeline enters the gas-liquid separator after being cooled by the refrigerant in the cooling cavity, gas and water in the microclimate are separated by the gas-liquid separator, the water is gathered to the liquid outlet at the lower end, and the gas is sent to the gas outlet at the upper end;
the separated water enters the liquid outlet at the lower end, is pumped into the second pipeline by the miniature water pump and is conveyed into the refrigerant in the cooling cavity at the bottom of the cooler, so that the refrigerant is dissolved by the water and subjected to endothermic reaction, and meanwhile, the microclimate heat in the first pipeline in the cooling cavity is absorbed to reduce the temperature of the refrigerant;
after the water is pumped into the refrigerant in the cooling cavity and overflows the partition plate above the cooling cavity, the super absorbent resin in the water suction cavity above the partition plate can completely absorb the overflowing water; and the separated gas enters the dryer from the upper end gas outlet to be dried and then is discharged back into the protective clothing again through the gas outlet pipe.
The beneficial technical effects are as follows: the invention relates to a device and a method for cooling and dehumidifying microclimate inside protective clothing, wherein a micro air pump pumps hot and humid air outside a human body under the protective clothing through an air inlet pipe, namely microclimate inside the protective clothing, the hot and humid air enters a gas-liquid separator through a cooler, the water and the air in the microclimate inside the protective clothing are separated in the gas-liquid separator, the separated water is conveyed into a refrigerant in the cooler through a liquid outlet at the lower end of the gas-liquid separator by a micro water pump, the refrigerant is dissolved in water to generate an endothermic reaction and is used for absorbing the heat of the air flowing through a first pipeline to cool the air, the cooled microclimate enters the gas-liquid separator to separate water and air, and the separated air is dried in a dryer and then is conveyed to each part of the human body inside the protective clothing through an air outlet pipe.
The invention adopts the gas-liquid separator to separate the moisture in the microclimate air inside the protective clothing, so that the relative humidity of the air in the microclimate is reduced, and the separated water is used for dissolving the refrigerant in the cooling cavity of the cooler, so that the refrigerant is dissolved in water to generate endothermic reaction and is used for being immersed in the heat exchanger in the cooling cavity, so that the temperature of the gas flowing in the heat exchanger pipeline is reduced. The device disclosed by the invention has the advantages that the separated water is subjected to waste water utilization, so that the gas in the first management in the cooling cavity is cooled and cooled, the waste water is utilized, the temperature and the humidity are reduced without increasing the total weight of the device, and the two purposes are achieved at one stroke; the method can effectively reduce the relative humidity and temperature in the protective clothing, achieve the beneficial effects of temperature reduction and humidity reduction, and improve the microclimate inside the protective clothing. The micro air pump and the micro water pump used in the invention have the advantages of low power consumption, low voltage, light weight and small volume; the refrigerant is a neutral non-corrosive solid substance, does not contain explosive materials, and has the advantages of quick response, low cost and no pollution.
Drawings
Fig. 1 is a schematic structural diagram of a main part of a microclimate cooling and dehumidifying device in a protective suit in embodiment 1.
The device comprises a gas inlet pipe 1, a micro air pump 2, a first pipeline 3, a heat exchanger 31, a second pipeline 4, a cooler 5, a cover 51, a device body 52, a sealing ring 511, a pressure release valve 512, a partition plate 53, a cooling cavity 54, a water absorption cavity 55, a gas-liquid separator 6, an upper end gas outlet 61, a lower end liquid outlet 62, an upper end gas inlet 63, a micro water pump 7, a dryer 8 and a gas outlet pipe 9.
Detailed Description
The invention is further described below with reference to the figures and specific examples, without limiting the scope of the invention.
Example 1
The microclimate cooling and dehumidifying device inside the protective clothing is mainly and structurally as shown in the figure 1: comprises a micro air pump 2, a cooler 5 and a gas-liquid separator 6;
the cooler 5 is a closed container, a partition plate 53 with holes is arranged in the cooler 5, the partition plate 53 divides a cavity of the cooler 5 into a cooling cavity 54 at the bottom and a water suction cavity 55 at the upper part, the cooling cavity 54 is filled with refrigerant, and super absorbent resin (SAP) is arranged in the water suction cavity 55; the gas-liquid separator 6 comprises an upper end gas inlet 63, an upper end gas outlet 61 and a lower end liquid outlet 62;
one end of the micro air pump 2 is connected with the air inlet pipe 1, the other end of the micro air pump is connected with the first pipeline 3, and the first pipeline 3 penetrates through the cooling cavity 54 and is connected with the upper end gas inlet 63; the upper end gas outlet 61 is connected with a dryer 8, and the dryer 8 is connected with an air outlet pipe 9; the lower end liquid outlet 62 is connected with a micro water pump 7, the micro water pump 7 is connected with a second pipeline 4, and the second pipeline 4 is connected with the cooler 5 and inserted into the cooling cavity 54;
the desuperheater 5 includes a body 52 and a cover 51, and the cover 51 includes a relief valve 512 and a packing 511 for sealing the body 52. The cooler body 52 of the cooler 5 is sealed by a seal ring 511 on the cover 51 to form a sealed container. When the separated water is more, the water injected into the cooler 5 is excessive, so that the pressure in the cooler 5 is too large, and the pressure relief valve 512 relieves the pressure according to the set pressure, thereby avoiding the explosion of the cooler due to the excessive internal pressure.
The device further comprises a power supply, the power supply voltage of the power supply is 5V or 12V, and the power supply controls the micro air suction pump 2 and the micro water suction pump 7 to work. The device can also be provided with a temperature sensor and a signal wire thereof, a humidity sensor and a signal wire thereof and a controller. After the power supply is turned on, the temperature sensor and the humidity sensor transmit the detected temperature and humidity inside the protective clothing to the controller through signal lines, and when the detected temperature and humidity inside the protective clothing exceed the set values of the controller, the controller controls the micro air suction pump 2 and the micro water suction pump 7 to work.
Wherein the dryer 8 has a drying agent therein. The desiccant can be silica gel, montmorillonite desiccant, molecular sieve, active mineral desiccant, etc.
The usage amount of the super absorbent resin is 100-500 g, and the water absorption cavity 55 does not need to be filled.
Wherein, the part of the first pipeline 3 in the cooling cavity 54 is a copper pipe heat exchanger. The heat exchange efficiency of the copper pipe heat exchanger is high. The refrigerant is a neutral non-corrosive solid substance which can dissolve and absorb heat when meeting water, and is preferably a carbamide solid or a sodium thiosulfate solid. The using amount of the refrigerant is 200-1000 g, and the refrigerant is filled according to the size of the arranged cooling cavity 54.
Wherein, the micro air pump 2 has the same working voltage as the power supply voltage of the power supply, the air pumping flow rate of at least 0.8 liter/min, the load current of about 400mA and the weight of about 50 to 100 grams; the working voltage of the micro water pump 7 is the same as the power supply voltage of the power supply, the pumping flow rate is at least 1.3 liters/min, the load current is about 200mA, and the weight is about 50 to 80 grams.
Example 2
The method for cooling and dehumidifying microclimate inside the protective clothing by using the device in the embodiment 1 comprises the following steps:
the device is worn outside the clothes of operators and inside protective clothing, the air inlet pipe and the air outlet pipe are fixed through bandages or clips (or can be worn outside the protective clothing, at the moment, two closable holes at different positions are required to be arranged on the protective clothing for inserting the air inlet pipe and the air outlet pipe), a power supply is turned on, the temperature sensor and the humidity sensor are arranged to transmit the detected temperature and humidity inside the protective clothing to the arranged controller through signal lines, and when the detected temperature and humidity inside the protective clothing exceed the set values of the controller, the controller controls the micro air pump 2 and the micro water pump 7 to start working;
the micro air pump 2 pumps the microclimate inside the protective suit into the first pipeline 3 through the air inlet pipe 1, the microclimate in the first pipeline 3 is cooled by the refrigerant in the cooling cavity 54 and then enters the gas-liquid separator 6, the gas-liquid separator 6 is used for separating gas from water, the water is gathered to the lower end liquid outlet 62, and the gas (namely air) is sent to the upper end gas outlet 61;
the separated water enters the lower end liquid outlet 62, is pumped into the second pipeline 4 by the micro water pump 7 and is conveyed into the refrigerant in the cooling cavity 54 at the bottom of the cooler 5, so that the refrigerant is dissolved by water to generate an endothermic reaction, and simultaneously absorbs the heat of the microclimate in the copper pipe heat exchanger 31 of the first pipeline 3 in the cooling cavity 54, and as the refrigerant is dissolved by water to generate the endothermic reaction, the copper pipe heat exchanger 31 exchanges the heat of the microclimate and the refrigerant and cools the microclimate;
when the separated water is pumped into the refrigerant in the cooling cavity 54 and overflows the partition plate 53 with holes above the cooling cavity 54, the SAP in the water suction cavity 55 above the partition plate 53 can completely absorb the overflowed water, so that the device is ensured not to overflow; the separated gas enters the dryer 8 from the upper end gas outlet 61 and is dried by the drying agent in the dryer, and then is discharged back into the protective clothing through the gas outlet pipe 9.
The device can be used for replacing the refrigerant in the cooling cavity 54 in the cooler 5 by a maintenance person after each work is finished, the SAP is replaced by the maintenance person after the SAP is immersed in the solution after the refrigerant is dissolved in water, and the drying agent in the dryer 8 can be replaced every week or longer.
The integrated device can be made into a small portable wearable device with the length of about 12cm, the height of 18cm and the thickness of 10cm, and the weight is light; each 500g of refrigerant costs about one or two yuan, contains no explosive material, and has the advantages of quick effect, low cost and no pollution.
The device disclosed by the invention has the advantages that the separated water is subjected to waste water utilization, so that the gas in the first pipeline in the cooling cavity is cooled and cooled, the waste water is utilized without increasing the weight of the device, and the cooling and the humidity reducing are achieved by one action; the method can reduce the relative humidity and temperature in the protective clothing, achieve the beneficial effects of temperature reduction and humidity reduction, and improve the microclimate inside the protective clothing.
Claims (10)
1. The utility model provides a device that inside microclimate of protective clothing cooled down and dehumidified which characterized in that: comprises a micro air pump (2), a cooler (5) and a gas-liquid separator (6);
the cooler (5) is a closed container, a partition plate (53) with holes is arranged in the cooler (5), the cavity of the cooler (5) is divided into a cooling cavity (54) at the bottom and a water suction cavity (55) at the upper part by the partition plate (53), the cooling cavity (54) is filled with a refrigerant, and the water suction cavity (55) is internally provided with super absorbent resin; the gas-liquid separator (6) comprises an upper end gas inlet (63), an upper end gas outlet (61) and a lower end liquid outlet (62);
one end of the micro air pump (2) is connected with the air inlet pipe (1), the other end of the micro air pump is connected with the first pipeline (3), and the first pipeline (3) penetrates through the cooling cavity (54) and is connected with the upper end gas inlet (63); the upper end gas outlet (61) is connected with a dryer (8), and the dryer (8) is connected with an air outlet pipe (9); miniature suction pump (7) is connected in lower extreme liquid outlet (62), second pipeline (4) is connected in miniature suction pump (7), second pipeline (4) with desuperheater (5) are connected and are inserted in cooling chamber (54).
2. The device for cooling and dehumidifying in a microclimate inside protective clothing according to claim 1, characterized in that the cooler (5) has a body (52) and a cover (51), and the cover (51) has a pressure release valve (512) and a sealing ring (511) for sealing the body (52).
3. The microclimate cooling and dehumidifying device inside protective clothing according to claim 1, further comprising a power supply, wherein the power supply has a power supply voltage of 5V or 12V.
4. The device for microclimating, cooling and dehumidifying according to claim 1, characterized in that a desiccant is provided in the dryer (8).
5. The microclimate cooling and dehumidifying device for protective clothing as claimed in claim 1, wherein the super absorbent resin is used in an amount of 100-500 g.
6. The device for micro-climate temperature and humidity reduction inside protective clothing according to claim 1, characterized in that the part of the first pipeline (3) located inside the cooling chamber (54) is a copper pipe heat exchanger (31).
7. The microclimate cooling and dehumidifying device inside protective clothing according to claim 6, wherein the refrigerant is a neutral solid substance which can absorb heat when meeting water.
8. The device for decreasing the temperature and humidity inside the protective clothing according to claim 7, wherein the refrigerant is carbamide solid or sodium thiosulfate solid.
9. The microclimate cooling and dehumidifying device for the interior of protective clothing according to claim 7, wherein the amount of the refrigerant used is 200-1000 g.
10. A method for cooling and dehumidifying microclimate inside protective clothing by using the device according to any one of claims 1-9, which is characterized in that:
wearing the device, and turning on a power supply which controls the micro air suction pump (2) and the micro water suction pump (7) to start working; the micro air pump (2) pumps the microclimate inside the protective suit into the first pipeline (3) through the air inlet pipe (1), the microclimate in the first pipeline (3) is cooled by the refrigerant in the cooling cavity (54) and then enters the gas-liquid separator (6), the gas-liquid separator (6) is used for separating gas and water in the microclimate, the water is gathered to the lower end liquid outlet (62), and the gas is sent to the upper end gas outlet (61);
the separated water enters the lower end liquid outlet (62), is pumped into the second pipeline (4) by the miniature water pump (7) and is conveyed into the refrigerant in the cooling cavity (54) at the bottom of the cooler (5), so that the refrigerant is dissolved by the water and subjected to endothermic reaction, and meanwhile, the microclimate heat in the first pipeline (3) in the cooling cavity (54) is absorbed to reduce the temperature;
after the water is pumped into the refrigerant in the cooling cavity (54) and overflows the partition plate (53) above the cooling cavity (54), the super absorbent resin of the water suction cavity (55) above the partition plate (53) can completely absorb the overflowed water; the separated gas enters the dryer (8) from the upper end gas outlet (61) to be dried, and then is discharged back into the protective clothing through the gas outlet pipe (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172900.XA CN111053306A (en) | 2020-03-13 | 2020-03-13 | Device and method for cooling and dehumidifying microclimate inside protective clothing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010172900.XA CN111053306A (en) | 2020-03-13 | 2020-03-13 | Device and method for cooling and dehumidifying microclimate inside protective clothing |
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| CN111053306A true CN111053306A (en) | 2020-04-24 |
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| CN202010172900.XA Pending CN111053306A (en) | 2020-03-13 | 2020-03-13 | Device and method for cooling and dehumidifying microclimate inside protective clothing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111884668A (en) * | 2020-07-28 | 2020-11-03 | 中国人民解放军陆军特色医学中心 | Communication device used in protective clothing |
| 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 |
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| CN208144484U (en) * | 2018-04-28 | 2018-11-27 | 顾志豪 | Temperature adjustment clothing |
| CN209333483U (en) * | 2018-12-04 | 2019-09-03 | 天津市泰源工业气体有限公司 | Mixed gas dehumidification device |
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| CN202832624U (en) * | 2012-10-25 | 2013-03-27 | 上海岚毅智能科技有限公司 | Air cooling dehumidification device special for mine refuge chamber and rescue capsule |
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| CN111884668A (en) * | 2020-07-28 | 2020-11-03 | 中国人民解放军陆军特色医学中心 | Communication device used in protective clothing |
| 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 |
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Application publication date: 20200424 |
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| RJ01 | Rejection of invention patent application after publication |