Corrosion-resistant heat pump type horizontal sleeve heat exchanger

Abstract

The invention provides a corrosion-resistant heat pump type horizontal sleeve heat exchanger which is of a horizontal structure in the mounting mode. The heat exchanger is composed of a corrosion-resistant block, cover heads, outer sleeve pipe plates, a composite pipe and pipe plates, the cover heads include a cover head I and a cover head II, the corrosion-resistant block is fixedly connected with the cover head I, the pipe plates include a pipe plate I and a pipe plate II, the cover head I is connected with the pipe plate I, the outer sleeve pipe plates include an outer sleeve pipe plate I and an outer sleeve pipe plate II, the pipe plate I is connected with the outer sleeve pipe plate I, the outer sleeve pipe plate II is connected with the pipe plate II which is connected with the cover head II, and the composite pipe internally comprises an outer sleeve and an inner heat exchange pipe which are concentric. The corrosion-resistant heat pump type horizontal sleeve heat exchanger has the advantages that the heat exchange pipe is convenient for inside cleaning, heat exchange efficiency of the outer side of the heat exchange pipe is improved greatly, and the heat exchanger is free oil-storage dead angle.

Description

technical field [0001] The present invention relates to a heat pump refrigeration system, more precisely to a novel corrosion-resistant heat pump horizontal casing heat exchanger. Background technique [0002] The horizontal shell and tube heat exchanger has unique structural features: relatively simple processing technology, easy cleaning of heat exchange tubes, mature anti-corrosion heat exchange tubes, and liquid storage capacity, etc., so it is widely used in various refrigeration systems. However, due to its structure, it cannot solve the problem of oil return when used as a heat pump system, so it can only be used as a condenser in a single-cooling refrigeration system at present; the heat pump refrigeration system can use a dry evaporator (condenser), and its structure Similar to the structure of the horizontal shell-and-tube evaporator, the difference is that in the dry evaporator (condenser), the refrigerant flows in the heat exchange tube, while the cooling medium ...

AI Technical Summary

Problems solved by technology

[0002] The horizontal shell and tube heat exchanger has unique structural features: relatively simple processing technology, easy cleaning of heat exchange tubes, mature anti-corrosion heat exchange tubes, and liquid storage capacity, etc., so it is widely used in various refrigeration systems. However, due to its structure, it cannot solve the problem of oil return when used as a heat pump system, so it can only be used as a condenser in a single-cooling refrigeration system at present; the heat pump refrigeration system can use a dry evaporator (condenser), and its structure Similar to the structure of the horizontal shell-and-tube evaporator, the difference is that in the dry evaporator (condenser) the refrigerant flows in the heat exchange tube, while the cooling medium flows outside the heat exchange tube

It has the advantages of small refrigerant charge, avoiding the phenomenon of heat exchange tubes bursting due to freezing, and solving the problem of oil return. It is widely used in various heat pump refrigeration systems. The disadvantages are: the processing technology is relatively complicated, It is difficult to clean the outside of the heat exchange tube, and it is difficult to deal with the corrosion of the cooling medium flow cavity inside the shell and outside the heat exchange tube, so its wide applicability is also restricted; the heat pump refrigeration system can also use a casing heat exchanger, It has the advantages of high thermal efficiency, simple structure, and oil return, but due to its structure, it is troublesome to repair, clean and disassemble. Long-term operation will cause the equipment to be blocked by scale, which will reduce efficiency, increase energy consumption, and shorten life.

At present, there is no corrosion-resistant heat pump type horizontal casing heat exchanger at home and abroad.

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