The difference between explosion proof air conditioners and ordinary air conditioners

Explosion-proof air conditioning

Explosion-proof air conditioning, compared to other special air conditioning will be slightly unfamiliar, but whether we are familiar with it or not, in some industrial places, it has an irreplaceable position in the petroleum, chemical and other sectors of the enterprise, in the presence of many flammable and explosive places in the operating room, production workshops, warehouses need a constant-temperature environment in order to ensure the normal production and work; In addition, the explosive gas environment in the Staff also want to work in a temperature-appropriate environment to improve efficiency and ensure product quality. But ordinary air conditioning in these hazardous places with flammable and explosive gases, there is a possibility of explosion, therefore, in such places must use explosion-proof air conditioning, explosion-proof air conditioning has become an important equipment for flammable and explosive places.

1 explosion-proof air conditioning and household air conditioning differences

Explosion-proof air conditioning appearance and basic household air conditioning is almost the same, explosion-proof air conditioning is mainly a modification of the air conditioning, circuit boards and other parts of the sealing process. With high energy efficiency, low noise, high temperature, low temperature, special high temperature, special low temperature, cooling and heating and automatic defrosting and other advantages, can be customized through the user’s needs for single-cooling or cooling and heating type modification.

Explosion-proof air conditioning and non-explosion-proof air conditioning differences

Explosion-proof air conditioner is a kind of air conditioner specially designed for hazardous environments, and its main feature is that it can operate safely in flammable, explosive and other hazardous environments. Compared with ordinary air conditioners, explosion-proof air conditioners have many differences in design.

First of all, the shell and internal structure of explosion-proof air conditioners are very strong and can withstand explosions and other accidents.

Secondly, the circuits and electrical appliances used in explosion-proof air conditioners are specially designed to operate safely in hazardous environments.

In addition, explosion-proof air conditioners are also corrosion-proof, dust-proof and waterproof, enabling them to operate stably for long periods of time in harsh working environments.

Ordinary air conditioners, on the other hand, are a common household appliance whose main function is to provide people with a comfortable indoor environment. Compared with explosion-proof air conditioners, ordinary air conditioners pay more attention to comfort and aesthetics in the design. Ordinary air conditioners are usually made of lighter and thinner materials, with a more stylish appearance, and are suitable for use in homes, offices and other environments. Ordinary air conditioners also have a variety of operating modes, such as cooling, heating, dehumidification, etc., can be automatically adjusted according to environmental changes.

Ordinary air conditioners in the presence of explosive gas mixtures in petrochemical and other hazardous places, once the flammable and explosive gas leakage, there may be a risk of explosion. Specific factors that may explode are as follows:

(1) electrical sparks and arcs generated by components and equipment, such as contactors and relays in the control circuit.

(2) Mechanical friction sparks generated during the operation of the equipment, such as between the bearing cover and rotating shaft of the motor, and between the rotating parts of the fan blades and the stationary parts of the fan motor.

(3) Static electricity may accumulate on the surface of the plastic housing of the air conditioner and generate static sparks.

(4) The surface of the equipment casing may generate dangerous temperatures, such as compressors and auxiliary electric heaters.

(5) Printed circuit boards have the possibility of short circuit, open circuit and other faults releasing energy to ignite flammable gases.

(6) Ordinary air conditioning wiring, electrical installation does not meet the appropriate standard requirements, there is also the possibility of generating sparks, arcs or high temperatures.

Selection of explosion-proof electrical equipment, must be fully considered to the degree of danger of explosive mixtures, otherwise, it will not be able to achieve the desired effect, can not guarantee production safety. At the same time, if an area, the presence of a variety of different hazardous levels of explosives, to choose the highest degree of danger with the explosion-proof equipment. At the same time, it is also necessary to fully consider the occurrence of non-explosive areas of the accident, such as the accidental leakage of combustible gases and so on.

2 explosion-proof air conditioning what are the characteristics

1 explosion-proof air conditioning has perfect protection measures, because it uses a composite explosion-proof star vector and perfect overheating, pressure protection, to realize the whole machine explosion-proof, more safe and reliable when used.

2 explosion-proof air conditioning compressor is generally used brand-name compressor, whether it is cooling or heating its performance is very stable. In addition, when running explosion-proof air conditioning noise is relatively small, longer service life.

3 air conditioning control system is advanced, whether it is the temperature or air volume size can be adjusted. Explosion-proof air conditioner is a kind of explosion-proof electrical appliances, its compressor and so on are after special explosion-proof treatment, its appearance and usage and ordinary air conditioners are similar, mainly used in petroleum, chemical industry, the army, oil depots and other flammable and explosive environments.

3 explosion-proof air conditioning principle

Explosion-proof air-conditioning placed in the aluminum alloy explosion-proof material, due to explosion-proof material laminated mesh composed of honeycomb structure, the inner cavity of the container is divided into many very small “small compartments”, “small compartments” to curb the spread of flame.

At the same time, this honeycomb structure has a high surface efficiency per unit volume, which has excellent thermal conductivity, can quickly absorb most of the heat released by the combustion, so that the final temperature after the combustion reaction Tf is greatly reduced, the degree of expansion of the reactive gases is greatly reduced, the container’s pressure is not much higher.

4 Summary

In general, explosion-proof air conditioning and ordinary air conditioning in the design of a great difference, applicable to different environments and occasions. Explosion-proof air conditioners are mainly suitable for hazardous environments, such as petrochemical, chemical, mining and other industries, to ensure the safety of staff lives. While ordinary air conditioners are suitable for home, office and other environments, which can provide people with a comfortable indoor environment.