Cold water evaporator with shells, inner evaporation copper pipes, waterways and single spacing board

Abstract

The invention provides a cold water evaporator with shells, inner evaporation copper pipes, waterways and a single spacing board. The cold water evaporator comprises the shells, a front end cover, a front partition board, the spacing board, a rear end cover, a rear partition board and the copper pipes, wherein each shell is a cylindrical cast iron shell, and the multiple sections of shells are connected end to end in series and are sealed together; each section of shell is provided with a refrigerant inlet, a refrigerant outlet, an exhaust port and an oil discharge port, and baffles are weldedat the positions, corresponding to the interiors of the shells, of the refrigerant outlets; a bottom shell of the front end cover is 8-shaped; the two ends of the spacing board are welded to the endsof two corresponding sections of shell respectively; a water cavity is formed between the rear end cover and the rear partition board; and the copper pipes are arranged in the shells. According to the cold water evaporator, the multiple sections of shells are connected in series, so that the space occupation can be reduced, and refrigerants cannot be directly discharged from the refrigerant outlets by the baffles in the shells when the evaporator is started.

Description

technical field [0001] The invention relates to the technical field of central air-conditioning, in particular to a cold water evaporator with a single partition plate for evaporating copper tube water channels in a casing. 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...

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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