Multi-section pipe-shell type double partition plate cold water evaporator

Abstract

The invention discloses a multi-section pipe-shell type double partition plate cold water evaporator. The cold water evaporator comprises a shell, a front end cover, 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 shell are connected in an end-to-end mode in series and are sealed together; and the shell of each section serves as the shell of the 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; bolt holes are formed in the bottom shell of the front end cover and the edge of the pipe shell; and the partition plates are two flange plates,and are welded with the shell on the left side and the shell on the right side correspondingly; a water cavity is formed between the rear end cover and the rear partition plate; and the copper pipe isarranged in the shell. According to the invention, water channels of the evaporators of the refrigerating system are shared, so that space occupation is reduced; and the 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 multi-section shell-and-tube cold water evaporator with 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 de...

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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