What are the methods of heat dissipation in protective clothing? What are the precautions for protec

In order to solve the problem of heat dissipation of protective clothing, our experimenters put on the "protective clothing portable heat dissipation device", put the ice pack and the fan into the bag in turn, the two fans are placed upward, the two fans are placed downward, the ice pack is located in front of the fan, there is a layer of mesh between the two, the ice pack is gel, and the ice can be refrigerated and reused after the ice melts, which is very environmentally friendly and saves money. After placing the ice pack and fan, adjust the vest, our experimenters put on protective clothing again and walked around in the sun, time passed, our experimenter said: After putting on the air-conditioned vest, I obviously felt that the wind was flowing, it was very cool and not heavy, and the ice pack in the front abdomen was digested quickly.

After many experiences of the test personnel, it was concluded that there is a clear difference when putting ice packs, and there is no coolness when there is no ice pack. When all four fan ports are facing up, only the upper body has wind, and when the two fan ports are facing up, the two fan ports are facing down, and the whole body is obviously windy circulating.

Wearing a "protective suit body cooler" will force the wind to travel near your body. Sweat lowers body temperature through the heat of vaporization, while spreading the air inside the suit around the body. By exerting a mechanism that does not exist in humans, it has a sufficient cooling effect.

By properly pulling out the body's physiological cooler with a "protective suit body cooling device", the brain's sensors determine that it is comfortable, so you can save unnecessary sweat and save physical strength.

What is "heat of evaporation"? After sweating during the hot season, the wind blows and it feels cool. Do you feel cool by blowing the fan after taking a shower?

Water evaporates (evaporates) by removing body temperature. The decrease in body temperature makes the brain sensors feel "cool". We also use this principle to dissipate heat from the garment.

The above content is about what are the heat dissipation schemes of protective clothing and the methods of heat dissipation of protective clothing.

1. In the process of work, it should be noted that when the chemical protective clothing is continuously contaminated by chemical substances, it must be replaced within the specified protection time. If the suit is damaged, it should be replaced immediately. For airtight protective clothing or non-airtight protective clothing with good sealing, it is recommended to follow the principle of two people accompanying each other, that is, at least two people enter the work area together in case of emergency, so that they can be rescued in time in case of emergency.

2. The fabric of chemical protective clothing can provide effective protection for several hours, but if you wear an air respirator, the working time is determined by the working time of the air respirator. Pay attention to the effective use time of the air respirator and replace the cylinder in advance before it runs out. And when calculating effective working hours, the time spent walking and changing equipment should be taken into account.

3. Try to avoid touching the outer surface of the protective clothing before taking off the protective gloves, and try to touch the inner surface of the protective clothing after taking off the gloves. The protective equipment taken off should be disposed of intensively to avoid expanding contamination in the process.

4. For airtight or liquid-tight protective clothing and other complex and bulky protective clothing, it is recommended that another person assist in putting on and taking off protective clothing, such as helping the wearer to adjust the hands and feet of some protective clothing and pull the zipper and other difficult work, and finally check the condition of the protective clothing after wearing it. When assisting in the removal of protective clothing, the assistant also needs to provide appropriate protection to avoid contamination due to the possibility of exposure to contaminants.

1. When wearing protective equipment, because it is clean, the relative risk is relatively small, and the risk is mainly concentrated in taking off. In order to ensure a reasonable order of taking off and taking off, we have specified the order of wearing.

2. For example, masks are the most important protective equipment, so we take them off last; The gloves are the dirtiest, so we take them off first; The protective suit and shoe cover were worn together, so we took them off together. Correspondingly, the order of putting on is completely opposite to the order of taking off.

3. There are some points to pay attention to in wearing, such as the hat should completely wrap the hair; Gloves should be wrapped around the cuffs of the protective clothing, and shoe covers should be wrapped around the cuffs of the protective clothing; The face shield should completely cover the chin.

4. The continuous use time of protective equipment should not exceed 4 hours. If there is contamination or damage during use, replace it immediately.

5. After dressing, volunteers should be at least 2 people in a group, do not walk alone, so as to remind each other in time. 6. When taking off, we first take off the dirtiest gloves, then take off the face shield (goggles), protective clothing and shoe covers at the same time, and finally take off the mask and hat at the second place and change the mask. Of course, in order to ensure that our hands are always clean during the removal process, hand hygiene must be performed every time we take off a piece of protective equipment.

7. There are some points to pay attention to when taking off. Be slow and gentle; The outer surface should be wrapped in the inner surface, and if the suit is removed, it should be curled down slowly and the shoe cover should be removed together. In addition, if multiple people are unloading at the same time, everyone's movements should be synchronized and separated by more than 2 meters.

Precautions for protective clothing.

1.Heavy protective clothing must not come into direct contact with flames and melts.

2.Before use, the garment must be carefully checked for damage, if it is damaged, it is strictly forbidden to use.

3.When using heavy-duty protective clothing, it is necessary to pay attention to the tight fit of the hood and the mask of the TDAF002 mask, and the neck buckle and the large white buckle on the chest must be fastened to ensure that the neck and chest are airtight.

4.After each use, wash with soapy water or sodium carbonate aqueous solution according to the dirty situation, then rinse with clean water, put it in a cool and ventilated place, and pack it after drying.

5.When folded, lay the hood opening upwards on the floor. Fold the head hood, neck buckle and two sleeves, then fold the garment vertically, overlap the left and right, with the two boot tips facing outward, put the gloves in the middle, and roll the soles of the boots into a roll, and put them horizontally into the packaging bag of the heavy-duty protective clothing.

6.Heavy protective clothing should not be exposed to heat and sunlight during storage, and should not be exposed to active chemicals and various oils.

Protective clothing mainly protects against thermal radiation and chemical contaminants** or entering the body.

1) Heat-proof clothing can be divided into two types: non-regulated and regulated.

1) Non-regulated heat-resistant clothing is represented by aluminum foil heat-insulating clothing that has good reflective characteristics and can reflect radiant heat and play a role in heat insulation. This type of protective clothing is equipped with an aluminum foil cap, helmet, gloves, boots coated with a metallic film reflective lens. Care must always be taken to keep the surface shiny and clean, otherwise it will lose its ability to reflect radiant heat.

The asbestos heat-resistant clothing has a small thermal conductivity and good heat insulation, but it is too heavy and inconvenient to operate after wearing. Although the anti-radiation heat effect of white canvas protective clothing is far less than that of the first two, it has the characteristics of economy and durability, and is widely used at present.

2) Adjusting the heat-proof clothing is a kind of refrigerated clothing with a number of ice packs inside, this kind of refrigeration clothing is a vest, and the front and back pockets of the vest are equipped with metal flat cans, and the cans are filled with low-temperature and non-toxic salt solutions, which can be changed when the salt solution is warmed. This kind of flat tank can also be placed in the safety trace Qi cap, and can be used when working in a high temperature and strong radiation environment.

2) Anti-chemical pollution clothing to prevent acid and alkali damage to the first grade, often made of polypropylene, polyester wheel or chlorine and other fabrics. Protective clothing that prevents chemicals from entering the body is often made of various polymers that are impermeable to the protected substances or have low permeability, and are coated on chemical fibers or natural fiber fabrics.

1. Prevent or reduce the impact of electromagnetic radiation on the human body;

2. Prevent or weaken the radiation intensity of electromagnetic waves entering the room;

3. Reduce the generation of static electricity and prevent the impact of static electricity generated by the human body on the equipment of the hall, which is more beneficial to health.