What should I do if the pressure of the closed cooling tower chiller is too high?
When the chiller unit is equipped with a cooling tower and a cooling pump, the diameter of the cooling water pipeline can be determined based on the inlet and outlet diameters of the cooling tower; When a cooling tower supplies several chiller units, the cooling water of each chiller unit enters, and the diameter of the outlet pipe is the same as the diameter of the cooling water connection pipe of the chiller unit condenser. The diameter of the inlet and outlet pipes of the cooling tower is the same as that of the inlet and outlet pipes of the cooling tower. For chiller units with closed cooling towers, high or low condensing working pressure can cause surge. Next, the editor will take you to understand what to do if the pressure of the closed cooling tower chiller is too high?
The leakage temperature of the cooler is generally not less than 30 ℃, and different manufacturers have different product specifications. Cannot be too low, as it may endanger the service life of the equipment, but try to maintain environmentally friendly and energy-saving operation as much as possible. Therefore, when centrifugal chillers operate in spring and autumn with lower average temperatures, the number of closed cooling towers or centrifugal fans should be minimized as much as possible to increase the leakage temperature of the cooler.
Closed cooling towers can also choose the method of partially cooling the circulating water through the inlet of the cooling water bypass valve from the outlet of the cooler, which can exceed the actual effect of increasing the leakage temperature of the cooler. The method of reducing the flow rate of water cooling and increasing the temperature difference between inlet and outlet can also have the same effect, but the pressure drop between inlet and outlet can be minimized as much as possible. In seasons with lower average temperatures, closed cooling towers are beneficial for the operation of screw chillers. Due to the low working pressure of condensation at this time, the output power consumption is greatly reduced.
The above is about how to solve the problem of high pressure in the closed cooling tower chiller unit.
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Guangdong Trlon Energy-saving Air Conditioning Equipment Co., Ltd.
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