supermarket refrigerated showcase » article > commercial refrigeration > The condenser is used in the walk-in cooler refrigeration system. The
The condenser is used in the walk-in cooler refrigeration system. The
author: supermarket refrigerated showcase category: commercial refrigeration Views: 571Time: 2016-08-22
condenser is used in the walk-in cooler refrigeration system. The
condenser is used in the walk-in cooler refrigeration system. The condenser is a heat exchanger that releases heat from the refrigerant. After the refrigerant vapor from the compressor through the oil separator enters the condenser, it transfers heat to the surrounding medium — — water or air, which condenses into liquid due to cooling. The condenser in walk-in cooler can be divided into three types: water-cooled, air-cooled (or air-cooled), and water and air combined cooling according to its cooling medium and cooling method. The following briefly introduces the types, characteristics and application scope of various condensers. A water-cooled condenser is a device that uses water as a cooling medium to condense the high-temperature and high-pressure gaseous refrigerant, called a water-cooled condenser. Commonly used water-cooled condensers of
include shell and tube horizontal condenser, shell and tube vertical condenser, and double-pipe condenser. Shell and tube horizontal condenser The shell and tube horizontal condenser is a kind of shell and tube heat exchanger, which can be used in various forms of refrigeration devices. The main part of the shell-and-tube type is a cylindrical tube formed by rolling and welding steel plates. The two ends of the simplified form are welded with two circular tube plates. The two tube plates are drilled with many small holes at the corresponding positions. A tube is inserted into the corresponding small hole, and the two ends of the tube are fastened in the tube hole of the tube sheet by expansion or welding, thus forming a set of straight tube bundles. The shell and tube horizontal condenser is placed horizontally. In this walk-in cooler condenser, the refrigerant vapor is condensed on the outer surface of the tube, and the cooling water flows through the tube under the action of the pump. The refrigerant vapor enters the cylindrical shell from the upper part, condenses into liquid and flows into the accumulator from the lower part of the cylindrical shell. During normal operation, only a small amount of liquid is stored in the lower part of the shell, but for small refrigeration devices, in order to simplify the equipment, sometimes no additional liquid reservoir is provided, but the refrigerant liquid is stored in the lower part of the condenser. The outlet pipe of the condenser can be directly welded to the lower part of the cylinder, or a liquid pack can be welded to the lower part of the cylinder, and the outlet pipe is connected to the liquid pack.
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