Cold water heat exchanger capable of allowing multiple sections of outer shells to share double separation plates with copper pipe

Abstract

A cold water heat exchanger capable of allowing multiple sections of outer shells to share double separation plates with a copper pipe comprises the outer shells, a front end cover, a front separationplate, the separation plates, a rear end cover, a rear separation plate and the copper pipe, wherein the outer shells are cylindrical cast iron outer shells, and multiple sections of the outer shellsare in series connection end to end and sealed; each section of the outer shell serves as an outer shell of an evaporator of a refrigerating system; each section of the outer shell is provided with arefrigerant inlet, a refrigerant outlet, an exhaust port and an oil discharge outlet; a bottom shell of the front end cover and the edge of a pipe shell are provided with bolt holes; the separation plates are two flange plates and are welded to the outer shells on the left and on the right respectively; a water cavity is formed between the rear end cover and the rear separation plate; and a circular groove is formed in the rear separation plate. Water channels of evaporators of multiple refrigerating systems are shared, so space occupation is reduced, and operation under stable working conditions is guaranteed according to actual operation conditions at any time.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning, in particular to a cold water heat exchanger with multiple sections of shell copper tubes sharing double partition plates. Background technique [0002] Both the evaporator and condenser in the refrigeration system are a specific form of heat exchanger. In the central air-conditioning industry, the evaporator has a variety of forms, including shell-and-tube, plate and other forms. The shell-and-tube type is generally suitable for air-cooled units that prepare cold water. In most regions of the country, different seasonal differences lead to different cooling capacity. For example, during the peak cooling time in summer, full power is required for cooling, but in winter and other seasons when cooling demand is low, full power is not required. At present, there is also frequency conversion technology that can solve the problem of cooling capacity changes within a certain range, bu...

AI Technical Summary

Problems solved by technology

However, the arrangement of multiple refrigeration systems will lead to the problem of space utilization. Generally, the condenser can be installed outdoors, but as an evaporator, it must be installed indoors, and the space for the evaporator is limited. Multiple refrigeration systems must be considered. The installation space of the evaporator of the system

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