Heat exchanger with heat exchange area adjustable

Abstract

The invention discloses a heat exchanger with heat exchange area adjustable. The heat exchanger comprises a heat exchanger shell mounted on a base and hollow heat exchange plates. Through control overrotation of a motor, a gear reducing mechanism is utilized to reduce the speed so that torque can be increased. Pipeline shafts fixed in isolation cavities of the hollow heat exchange plates are driven to rotate, the heat exchange plates enters and exits the isolation cavities, then heat exchange area of the heat exchanger is increased or decreased, and needs for the heat exchange area under different architecture thermal loads are satisfied. According to the heat exchanger with the heat exchange area adjustable, secondary modification of a conventional heat exchanger in the heat supply reformation process is avoided; corresponding project cost is saved; meanwhile, a brand-new adjusting manner, heat exchange area adjustment, is also provided for operation regulation of central heating; and equipment support is provided.

Description

Technical field [0001] The invention relates to a heat exchange device, in particular to a heat exchanger with an adjustable heat exchange area. Background technique [0002] With the development of the economy and the improvement of people's living standards, more and more residential districts choose central heating to survive the cold winter, especially in the severely cold northern regions, where central heating has become quite common. In the past 15-20 years, my country's central heating industry has also developed rapidly. The heat exchanger, as the heat exchange device of the indirect heating system, realizes the heat exchange between the heat source side and the user side, and plays an important role in the central heating system. With the advancement of technology, heat exchangers have been greatly improved both in terms of appearance and performance, and their structural forms are also rich and varied. Commonly used are partition heat exchangers, hybrid heat exchanger...

AI Technical Summary

Problems solved by technology

However, in the case of a large change in heat load, such as a building after reconstruction or expansion, due to changes in the building structure and user characteristics, the heat load has undergone a large change, and the heat exchanger installed under the original heat supply design has not worked well. To adapt to the building after reconstruction or expansion, the heat exchange area of ​​the existing heat exchanger may be too large or too small

Therefore, in most cases, the heat exchanger needs to be rebuilt to meet the heating demand of the building after reconstruction or expansion, which will consume manpower, material resources and financial resources

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