Refrigeration heat exchanger with multi sections of shells and double partition plates

Abstract

The invention discloses a refrigeration heat exchanger with multi sections of shells and double partition plates. The refrigeration heat exchanger comprises the shells, a front end cover, a front separation plate, the partition plates, a rear end cover, a rear separation plate and a copper pipe; the shells are cylindrical cast iron shells, and the multiple sections of the shells are connected endto end in series and are sealed together; the shell of each section serves as a shell of an evaporator of a refrigerating system; the shell of each section is provided with a refrigerant inlet, a refrigerant outlet, an exhaust port and an oil discharge port; and a bottom shell of the front end cover is 8-shaped; the partition plates are two flange plates and are welded to the outer shell on the left side and the right side; the rear end cover is formed by welding a cylindrical shell of an outer ring and a spherical bottom cover; and an annular groove is formed in the rear separation plate. According to the refrigeration heat exchanger, water channels of the evaporators of the multiple refrigeration systems are shared, so that space occupation is reduced, and operation under a stable working condition can be guaranteed at any time according to the actual operation condition.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning, in particular to a refrigeration heat exchanger with multi-section shells and 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, but it is powerless to...

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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