Outer shell series connection shell-pipe type single-spacing-plate refrigeration heat exchanger

Abstract

The invention discloses an outer sell series connection shell-pipe type single-spacing-plate refrigeration heat exchanger which comprises an outer shell, a front end cover, a front partition plate, aspacing plate, a rear end cover, a rear partition plate and a copper pipe. The outer shell is a cylindrical cast iron outer shell, multiple outer shell segments are connected together in series end toend and sealed, a refrigerant inlet is located at the one-third position below the center line of the side wall of the outer shell, a refrigerant outlet is located on the top of the outer shell, andthe refrigerant inlet and the refrigerant outlet are away from each other in the axial direction of the outer shell. The edges of a bottom shell and a pipe shell of the front end cover are provided with bolt holes, the two ends of the spacing plate are welded to the ends of two outer shell segments, the rear end cover is formed by welding a cylindrical shell on the outer ring and a spherical bottom cover, and the rear partition plate is provided with an annular groove. Refrigerant pipelines are arranged independent outer shell segments correspondingly, occupied space is reduced, water in the copper can be sufficiently 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 single-partition refrigeration heat exchanger 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...

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

Images