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First, hot oil pump and pipe installed, whether it is using water pressure, air pressure, hot oil pump inlet and outlet valves must be closed before pressure test to prevent damage to seals, resulting in oil spills.
â… . Prepare one boot, clean up the site, unscrew the bearing screws, add hot oil for lubrication.
II, hand-moving coupling pump should be flexible rotation.
Third, the boot should be used before the transfer of hot oil filled hot oil pump to get rid of the heat pump air, then spit out the pipe valve on the gate should be closed.
Pre-heating standard: hot pump casing temperature not lower than the inlet oil temperature 40 ℃, preheating is the use of the heat transfer oil is continuously transported through the pump body. At a speed of 50 ° C / h, the side nut on the pump foot should be loosened by 0.3-0.5 mm at warm-up and should be tightened when preheating is complete.
II. Boot one, a comprehensive inspection of the preparation is perfect.
Second, turn on the power, when the hot oil pump reaches the positive speed, and the instrument shows considerable pressure, gradually open the output valve on the pipeline, and adjust to the need conditions.In the case of output valve gate valve is closed, the pump work continuously Can not exceed 3 minutes.
Third, 3-4 hours in the initial run, the equipment is heated to operating temperature after the turn off the hot oil pump, check the hot oil pump shaft and motor coupling coaxiality, pump shaft and motor shaft deviation should be controlled within the allowable range , Hand shaft rotation should be lightweight and flexible rotation without vibration, if not meet the above requirements, should be re-adjusted.
Stanford, the boot process, we must always pay attention to motive power readings and vibration conditions, the vibration value does not exceed 0.6 mm, if the abnormal shutdown should be checked.
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The correct way to use hot oil pump
The correct use of hot oil pump :