More and more companies need to use chillers in the production process. According to the production requirements, the water flow required by the chillers is different. To choose the right water flow to ensure the smooth production process. Then, do you have any doubts about how to measure the chiller flow when you purchase the chiller? Today, Xiaobian brings you the chilled water flow measurement technique of the chiller, I hope to help you.
1. Detection of return water temperature and outlet water temperature of chiller: After 30 minutes of starting, the parameters of the control system of the unit or the chilled water system inlet and outlet thermometer of the unit can be read, and the inlet water temperature and outlet water temperature of the unit can be read. The difference needs to be ensured at 4-6 degrees. If the temperature difference between the inlet and outlet water is too large, it means that the water flow of the water system through the plate is too small, which may cause the unit to malfunction or be damaged.
2, the water pressure detection of the unit inlet and outlet pipes: through the detection of the return water pressure and the water pressure value, and then in the random specification of the unit to check the water flow of the freezer under the pressure difference between the inlet and outlet water, by consulting the instructions The unit's water flow corresponds to a table or map to determine whether the water system is normal; and through this difference to determine which section of the water pipeline resistance value is too large, and make corresponding rectification plans and actions.
3. Compressor copper pipe suction temperature detection: If the suction temperature of the compressor is detected to be lower than 0 degree after the cooling chiller is turned on for 30 minutes, it means that the water flow in the water side heat exchanger is insufficient to cause the evaporation temperature and The evaporation pressure drops, and the Freon is still evaporating and absorbing heat in the suction pipe of the evaporator to the compressor, which will cause the compressor suction temperature to be lower than 0 degree. In addition, the water temperature set point is too low to be excluded. The evaporation pressure and the evaporation temperature drop.
