Explosion type and location of electrical equipment

What are the requirements for the type of explosion protection and the place of use of electrical equipment?
1: Flameproof electrical equipment has a flameproof enclosure that withstands the pressure generated by the detonation of its internal gas mixture and prevents the ignition of the surrounding mixture around the enclosure after passing through the flameproof gap. This is an explosion-proof type that is currently used more than Zui, but the volume and quality are large.
2: The safety-enhanced electrical equipment is structurally constructed to improve its safety so that it does not generate arcs and sparks under normal operating conditions, nor does it exhibit high temperatures in the flammable mixture. Increased safety electrical equipment is still not widely used in China. It is mainly used in electric motors, transformers, lighting fixtures, etc. It is more economical than other explosion-proof types.
3: Intrinsically safe electrical equipment is an electrical device that achieves explosion-proof electrical energy by limiting the electrical parameters of the circuit and thereby limiting the energy of the spark spark, so that the spark and thermal effects generated by the circuit system are insufficient to ignite the mixture. This type of explosion protection is mainly used on weak current products, such as general control, signals, communication devices and instrumentation. The utility model has the advantages of simple structure, small volume, light weight, convenient manufacture and maintenance, and reliable safety, and is an ideal explosion-proof type.
4: According to the location of explosion-proof electrical equipment, it can be divided into two categories: coal mine (class I) and factory (class II). The former is mainly for biogas (methane) explosion-proof, and the latter is divided into three grades A, B, and C according to the nature of various gas mixtures. Therefore, the electrical equipment used for the explosion-proof conveyor should be reasonably selected according to the type of the place of use, and cannot be arbitrarily changed.

Our main refrigeration Cold Room Evaporator includes commercial unit coolers, industrial unit coolers, dual-discharge industrial coolers, fast freezer unit coolers and CO2 unit coolers.

Features of Cold Room Fan , Cold Room Blower, cold room evaporator, Freezer Room Evaporator

unit coolers, evaporators, and evaporative air coolers:

It is specially designed for fresh room, Freezer Room , and Cold Storage Room etc. The shell is made of quality steel plate, sprayed plastic surface is anti-corrosive, and its appearance is smooth; Coiled pipes are mechnical expanding tubes in staggered arrangement; therefore copper tubes and aluminum sheets are combined closely, and ensure good effect of heat exchange. Electrical heating tubes made of good stainledd steel are distributed evenly in coiled pipes, and thus ensure excellent defrosting effect. Electrical heating tubes are defrosted by closely connecting electrical aluminum bushing and holes of fins as a result, heat is dissipated easilt, and thus fan has long service life.

The width of cooling fan is resonable design, space between fan blade and aluminum fin is larger than 1/3 diameter of fan blade in order to ensure sufficient effective air volume;

Long-distance air supply ducts can be used accroding to customers`requirements;

Cold Room Evaporator

Cold Room Fan,Cold Room Blower,Cold Room Evaporator,Freezer Room Evaporator

Shandong Atlas Refrigeration Technology Co.,Ltd. , https://www.atlascoldroom.com