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Water-cooled walk-in cooler condenser condensing pressure adjustment
author: supermarket refrigerated showcase category: commercial refrigeration Views: 520Time: 2016-08-22
water-cooled walk-in cooler condenser condensing pressure adjustment
1) The use of pressure-controlled water volume control valve is a pressure-controlled water volume control valve structure, it is in the walk -in cooler system installation. Working principle: There is a connecting pipe connected to the condenser at the upper part of the valve to feel the change of condensing pressure; if the condensing pressure rises, the bellows of the valve is further compressed, so that the upper and lower ejector rods move down, and the valve is opened. If the condensing pressure drops, the valve will be closed to reduce the amount of cooling water, so that the condensing pressure will rise to the given value range. There is an adjusting screw and a spring in the middle of the water volume adjusting valve. By adjusting the screw to change the pressure of the spring, different given values can be obtained. If the spring force is reduced, the valve opens, the amount of cooling water increases, and the set value of condensing pressure decreases: if the spring force is increased, the set value of condensing pressure increases.
2) The temperature-controlled water volume regulating valve is a temperature-controlled water volume regulating valve. Use walk-in cooler cooling water temperature parameters to adjust the cooling water volume, and then achieve the purpose of controlling the condensing pressure. Its operating principle is the same as that of a pressure-controlled water volume regulating valve, but the difference is that a temperature bulb is used to sense temperature changes and then converted into pressure changes to manipulate the valve.
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