A machine that relies on the input of mechanical energy to increase the gas pressure and deliver gas. It is widely used for ventilation, dust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; boilers and industrial furnaces Ventilation and wind; air conditioning equipment and household appliances in the cooling and ventilation; grain drying and selection; wind tunnel and hovercraft inflatable and propulsion. According to the direction of gas flow, the fan can be divided into centrifugal, axial flow, oblique flow (mixed flow) and cross flow.

First, the purchase side
Consumers in the purchase of fans, should choose a brand of fan manufacturers of products, there are two reasons: First, the fan product quality assurance; Second, although the price may be relatively high, but the brand business fan energy saving effect, Its use cost is much lower.
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Second, the use of aspects
Consumers in the use of fans, should pay attention to the following aspects:
1, the use of the environment should always keep clean, keep the fan surface clean, into the outlet should not have debris. Regularly eliminate dust and other debris in the fan and pipe.
2, only in the fan under normal circumstances can be run, and to ensure that the voltage stability is strictly prohibited operation, power lines must be dedicated lines, should not be used for long-term temporary power supply.
3, the fan in the course of the operation there are abnormal sound, the motor serious fever, shell live, switch trip and can not start the phenomenon, should immediately stop checking. In order to ensure safety, maintenance is not allowed in the operation of the fan. After the test should be run for about 5 minutes, to confirm no abnormal phenomenon and then boot operation.
4, the fan should be stored in a dry environment, to avoid motor damp. Fan in the open storage, there should be rain measures. In the storage and handling process should prevent the fan bump, so as to avoid damage to the fan.