Refrigerating heat exchanger with shell connected in series, copper pipe waterway and single partition plate

Abstract

The invention discloses a refrigerating heat exchanger with shell connected in series, copper pipe waterway and single partition plate. The refrigerating heat exchanger comprises a shell, a front endcover, a front separation plate, partition plates, a rear end cover, a rear separation plate and a copper pipe, wherein the shell is a cylindrical cast iron shell; a plurality of sections of the shellare connected in an end-to-end mode in series and are sealed together; and the refrigerant inlet is located at one third of a center line of the side wall of the shell; and the refrigerant outlet islocated at the top of the shell, a refrigerant inlet and the refrigerant outlet are far away from each other in the axis direction of the shell; and a bottom shell of the front end cover is a 8 shape;two ends of the partition plates are welded to the ends of the two sections of the shells correspondingly; the rear end cover is formed by welding a cylindrical shell of the outer ring and a spherical bottom cover; and an annular groove is formed in the rear partition plate. According to the invention, refrigerating fluid pipelines are arranged in each independent shell, so that space occupationis reduced; water in the copper pipe can be fully utilized for the heat exchange; and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning, in particular to a refrigeration heat exchanger with a copper tube waterway single-partition plate whose shell is connected in series. 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 certa...

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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