Tubular cold water evaporator with single space plate and outer shell sections connected in series

Abstract

A tubular cold water evaporator with a single space plate and outer shell sections connected in series comprises an outer shell, a front end cover, a front space plate, the space plate, a rear end cover, a rear space plate and a copper pipe. The outer shell is a cylindrical cast iron outer shell. The multiple outer shell sections are connected end to end in series and sealed. A refrigerant inlet is located in the position one third below the center line of the side wall of each outer shell section. A refrigerant outlet is located at the top of each outer shell section. Each refrigerant inlet is far away from the corresponding refrigerant outlet in the axis direction of each outer shell section. Bolt holes are formed in the edge of a bottom shell and the edge of a tube shell of the front end cover. The two ends of the space plate are welded to the ends of two corresponding outer shell sections correspondingly. A water cavity is formed between the rear end cover and the rear space plate.The copper pipe is arranged in the outer shell. Refrigerant pipelines are arranged in all the independent outer shell sections, the occupied space is reduced, water in the copper pipe can be fully used for 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 shell-and-tube type cold water evaporator with a shell 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 certain range, but it is powerless to deal wi...

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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