1. Warm pump: A reasonable warm pump is one of the impo […]
1. Warm pump: A reasonable warm pump is one of the important starting procedures for the feed pump. It can be used for warming or anti-warming. The positive warm pump is used as the deaerator to enter the pump through the inlet pipe. Water is released, and water is also discharged in the lower part of the inlet section. The anti-warm pump is used to draw water into the pump through the pressure main pipe, and the deaerator is returned from the inlet pipe, and water is also discharged in the lower part of the water inlet section. The requirements of the warm pump are: a, the temperature difference between the upper and lower housing is less than 15 ° C, b, the upper temperature of the housing and the feed water temperature is less than 8 ° C ~ 10 ° C, c, the pump and motor coupling up and down deviation is less than 0.05 mm. The warm pump temperature rise rate should generally be 1 °C ~ 2 °C / min.
2. Check the cooling water pressure and temperature rise, and open the cooling water pipes. Check the pressure of the sealed water.
3. Check the pressure and temperature of the feed water to the pump. The inlet pressure is not less than 1.13 times the saturation pressure at that temperature.
4, the electrical part of the inspection is all intact, all the instruments are intact, the auxiliary oil pump linkage has been cast, oil circulation, oil quality test, oil level is normal, the oil pressure before the bearing is 0.05 ~ 0.1Mpa.