Multi-section pipe-shell type single partition plate cold water heat exchange

Abstract

The invention discloses a multi-section pipe-shell type single partition plate cold water heat exchanger. The cold water heat exchanger 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, arefrigerant outlet, an exhaust port and an oil discharge port; bolt holes are formed in a edge of a pipe shell and a bottom shell of the front end cover; two ends of the partition plate are welded tothe ends of the two sections of the shells correspondingly; and a water cavity is formed between the rear end cover and the rear partition plate; and an annular groove is formed in the rear partitionplate. According to the invention, water channels of the evaporators of the refrigerating systems 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 heat exchanger with a single partition plate. 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 ...

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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