Do you know the explosion-proof small forklift trucks correctly?

When it comes to explosion-proof small forklift trucks, many customers have doubts. What is the difference between an explosion-proof electric mini forklift truck and an ordinary electric small forklift trucks? I need an explosion-proof electric mini forklift truck for the handling conditions of our factory? Don't worry, NEW NEWTON will solve your doub

First, the necessity of explosion-proof mini forklift truck

With the development of the world economy, especially the development of petroleum and chemical industries and the increasing variety of chemical raw materials, the places where there are hidden dangers of explosive gas in production, transportation and storage are also expanding. To ensure safe and efficient production, The application of warehousing and transportation vehicles and small forklift trucks with explosion prevention is receiving more and more attention from major industries.        (mini forklift truck)

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Second, the introduction of explosion-proof knowledge                          ( mini forklift truck , small forklift trucks )

Chemical explosions are classified into solid, liquid, and gas explosions depending on the state of the material. Explosion-proof vehicles are mainly to prevent vehicles from exploding in an explosive atmosphere. An explosive atmosphere is a mixture of a gas, vapor, mist, dust, or fibrous flammable substance and air under atmospheric conditions, which is ignited and burned to the entire unburned mixture. Explosive solids and liquids are present in the atmosphere. Because molecular motion diffuses into the atmosphere, there are bound to be explosive gases in the atmosphere where there are explosive solids and liquids. The forklift can operate in an explosive atmosphere to solve explosive objects. The key to running in.

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A. Conditions for the explosion of flammable gases                                        ( mini forklift truck , small forklift trucks )

1. Internal conditions: The concentration of flammable gas is within a certain range, and an explosion occurs between the lowest concentration and the highest concentration.

2. External factors: ignition flash or open flame, ambient temperature above the self-ignition point, radiation with a certain amount of energy, may be detonated. Specific to the vehicle is reflected: electric spark; mechanical collision spark; the temperature of the heat-generating parts such as motors, electric controls, brakes, oil pumps and valves may cause an explosion.

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B. Explosion-proof method                              ( mini forklift truck , small forklift trucks )

At present, the explosion-proof methods for explosion-proof equipment in China adopt the following two methods.                           ( mini forklift truck , small forklift trucks )

1. Intrinsically safe type: It is limited by the energy of the circuit. The spark, arc and temperature generated in the normal or short-circuit fault state are not enough to ignite the flammable and explosive gas.                             ( mini forklift truck , small forklift trucks )

2. Structure explosion-proof type: Separate the electrical equipment from the surrounding environment by means of isolation measures. Common forms are: explosion-proof type, increased safety type, positive pressure type, oil-filled type and so on.                       ( mini forklift truck , small forklift trucks )

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At present, the explosion-proof type of electric explosion-proof mini forklift truck is mainly flameproof. The principle is: in normal operation, the parts of the electrical equipment that can generate spark arc are placed in the flameproof enclosure, and the flameproof enclosure can withstand the internal pressure without damage, and It can ensure that the internal flame gas will reduce the energy when it propagates through the gap, which is not enough to detonate the gas outside the shell.                  ( mini forklift truck , small forklift trucks )

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Third, the explosion-proof area division                             ( mini forklift truck , small forklift trucks )

Explosive gas environment, divided into three regions according to their degree of danger                      ( mini forklift truck , small forklift trucks )

Zone 0: A place where explosive gas atmospheres occur continuously or exist for a long time. (Mobile industrial vehicles are not allowed to enter)

Zone 1: A place where an explosive atmosphere may occur during normal operation.                  ( mini forklift truck , small forklift trucks )

Zone 2: During normal operation, an explosive atmosphere is unlikely to occur, and if it occurs, it happens occasionally and is only a short-lived place.

Special attention: At present, the highest level of explosion-proof small forklift trucks at home and abroad can only operate safely in Zone 1 and Zone 2.

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