How to correctly use forced circulation pump operation

how to properly use forced circulation pump?

when forced circulation pump and inlet pipe filled with water, or water filling equipment, valve closed suction hole and a power machine, centrifugal pump outlet pipe generally choose close the valve. When units launched to the rated speed, should immediately open the gate valve, water or pump in the inland waters flow in the pump shell continuous loop and heat, a damage to certain parts of the pump.

forced circulation pump work monitoring which content

1) pay attention to unit with or without abnormal noise and vibration. Centrifugal pump work, the unit should be safe, normal continuous acoustic response. Assuming the unit vibration or noise, defective unit. At the moment, should stop check, eliminate hidden dangers.

2. Pay attention to the instrument pointer changes. Pressure gauge reading drops, may be because the belt creep, or the intake pipe air inhaled air, or impeller block, therefore, should pay attention to whether the ammeter reading beyond ratings, general electric machine long time overload work is not permitted.

(3) pay attention to check the temperature of the engine. Assumes that the temperature is too high, must stop the machine immediately to check.

(4) pay attention to check the bearing temperature and oil. Centrifugal pump work, often bearing temperature with a thermometer or semiconductor thermometer, the oil change time for 500 h a commonly, new forced circulation pump should be early oil change.

5. Be aware of forced circulation water pump packing seal is normal. Packaging shall not be too tight or too loose. Homework should be continuous drop of water. According to the experience, every minute around 60 drops from the stuffing box.

6. Look into the water tank water level change. Assuming that water tank water level below the water level, should suspend the pump work, in order to avoid cavitation and damage the pump impeller. Forced circulation pump into the water or into the pool trash rack is sundry jams, shall be immediately removed.

the choice of the forced circulation pump

according to actual needs of the irrigation and drainage, selection and the corresponding to the rated flow and rated head of forced circulation pump type and quantity, to ensure efficient and economic task irrigation and drainage. Select the general solution of the pump are as follows:

1) admitted that forced circulation pump flow planning.

(2) admitted planning forced circulation pump head.

(3) admitted that forced circulation pump diameter.

(4) admitted that forced circulation pump type.

5. Choose 'water pump function table' and 'pump function induced spectrum' choose the pump type.

6 admitted that forced circulation pump.