Cold water heat exchanger with plurality of sections of shells, copper pipe, waterway and double partition plates

Abstract

The invention discloses a cold water heat exchanger with a plurality of sections of shells, a copper pipe, a waterway and double partition plates. The heat exchanger comprises shells, a front end cover, a front separation plate, the partition plates, a rear end cover, a rear separation plate and the copper pipe, wherein the shells are cylindrical cast iron shells, and the plurality of sections ofshells are connected end to end in series and are sealed; the shell of each section serves as an outer 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, wherein the bottom shell of the front end cover is of an Arabic number 8 shape, and each partition plate is composed of two flange plates which are welded to the shells on the left side and the right side correspondingly; a water cavity is formed between the rear end cover and the rear separation plate; and an annular groove is formed in the rear separation plate. According to the heat exchanger, water channels of the evaporators of a plurality of refrigeration systems are used in common, so that the space occupation is reduced; and the operation in 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 cold water heat exchanger with multi-section shell copper pipe waterways 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 ...

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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