There is a single speed and two speed points for fire and smoke exhausting fans. When we choose fire and smoke exhausting fans, do we have to consider the usage problems of single and double speed fire exhaust fans? The fans are convenient for us to use. When we use blower, we should pay attention to the following problems:
What problems should be noticed in the use of single speed fire exhaust fans?
1, before opening the box, the fan should check whether the package is intact or not. Whether the parameters of the nameplate of the fan meet the requirements, whether the accompanying accessories are complete or not.
2, carefully check whether the fan has any deformation or damage during the transportation process, whether the firmware is loose or falling off, whether the impeller is rubbing or not, and inspecting all parts of the fan. If abnormal phenomenon is found, it should be repaired and used again.
3, using 500V Mega meter to measure the insulation resistance between the fan casing and the motor windings, the value should be greater than 500 billion euro, otherwise the motor windings should be dried and dried, and the temperature should not exceed 120 degrees.
4. Prepare all kinds of materials, tools and venues for fire engine installation.
Double speed Smoke exhausting fan for fire fighting What problems should be noticed in use?
During the installation of dual speed fire exhaust fan, please pay attention to motor wiring and coil problem. In the past, there was a phenomenon that the customer's self connection led to the abnormal operation or even burnout of the motor. We hope that users will be cautious when using the dual speed fire exhaust fan in the later stage.
During the operation of the dual speed fire exhaust fan, we should pay attention to the running time of the fan and the degree of the oil quantity of the engine. Generally speaking, there are three options for the weak medium strength. The maintenance personnel of the fan should pay great attention to this problem while maintaining the temperature. The temperature control can control about three degrees Celsius, and the speed of the internal combustion engine is very heavy in the normal operation of the lampblack machine. Yes. In order to maintain normal running speed, attention should be paid to the internal cleaning of double speed fire exhaust fans.
The grounding of fire and smoke exhausting fan casing or motor shell must be reliable, prohibit rotation in opposite direction, prohibit operation of over rated current, prohibit the number of refueling fans for fire and smoke exhausting fans running in phase less than 1000 hours / times, and prohibit the maintenance of fans in operation.
Tags: Smoke exhausting fan for fire fighting Smoke exhausting fan Mixed flow fan