The fluctuation value of the voltage is in the range of 380V±10%. The three-phase power supply cannot be out of phase; the instrument and electrical equipment should be in good condition, and the grounding of the electrical equipment to be grounded should be reliable; the connection between the fan and the pipeline, and the bolts of the base should be tightened. The lubricating oil in the gear box shall be added to the oil marking line according to the specified grade;
First, preparation and inspection before starting
The fluctuation value of the voltage is in the range of 380V±10%. The three-phase power supply cannot be out of phase; the instrument and electrical equipment should be in good condition, and the grounding of the electrical equipment to be grounded should be reliable; the connection between the fan and the pipeline, and the bolts of the base should be tightened. The lubricating oil in the gearbox should be added to the oil marking line according to the specified grade; before starting, turn the pulley 2-3 times by hand to see if there is any abnormality; the outlet valve of the fan should be closed and the venting valve should be fully open.
Second, boot operation
Open the vent valve and air outlet valve; start the power supply, if there is no abnormality after 30 seconds (such as metal friction sound, excessive current, etc.), gradually close the vent valve to make it run normally; in normal operation, never close the outlet valve. In order to avoid a burst accident; if several fans are turned on at the same time, one should be opened first, and the other should be opened after the no-load operation is normal. After the no-load operation is normal (30 seconds), the vent valve is closed.
Third, the shutdown operation
Make a record before stopping, record the voltage, current, wind pressure, temperature, running time and other data; gradually open the vent valve; press the stop button; close the air outlet valve.
Fourth, the inspection of the fan
The fan is patrolled once an hour after normal operation of the fan, and a meter reading record (voltage, current, wind pressure, temperature, etc.) is performed every 2-3 hours. During the inspection process, pay attention to whether the sound of the fan is normal. There should be no friction and impact sound during operation. If there is any abnormality, stop the inspection immediately.
Fifth, the maintenance of the fan
For routine maintenance work, the fan room should be kept clean and well ventilated, and there should be no dust and grease on the surface of the unit; check the tightening degree of each connecting bolt of the fan regularly (monthly); after the initial operation or overhaul, the fan is running for 48 hours. After that, all the lubricating oil in the fuel tank should be replaced. Generally, the oil should be changed when working continuously for more than 500 hours. The standby fan should be turned on for at least one hour every week. Usually, after the fan is running for 10 hours, it should be switched once with the standby fan to extend the service life of the fan. Under normal circumstances, the fan is inspected once every 500 hours, once in 2000 hours, once in 3000 hours, and overhauled in 15,000 hours.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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