Lithium bromide absorption type heat exchange unit with externally-cooled solution

Abstract

The invention discloses a lithium bromide absorption type heat exchange unit with an externally-cooled solution, relates to a heat exchange unit, particularly relates to a lithium bromide absorption type heat exchange unit with the externally-cooled solution and aims to solve the problems of large total area and high production cost of the existing absorption type heat exchange unit. The lithium bromide absorption type heat exchange unit with the externally-cooled solution comprises a generator, a condenser, an evaporator, an absorber, a solution pump, an external heat exchanger, a throttling expansion device, a concentrated solution cooler, a primary water pipeline, a first secondary water pipeline, a second secondary water pipeline, a third secondary water pipeline, a first refrigerant water steam pipeline, a refrigerant water passage, a second refrigerant water steam pipeline, a concentrated solution pipeline and a dilute solution pipeline; the generator is connected with the condenser through the first refrigerant water steam pipeline; the condenser is connected with the evaporator through the refrigerant water passage; the evaporator is connected with the absorber through the second refrigerant water steam pipeline; the absorber is connected with the generator through the dilute solution pipeline. The lithium bromide absorption type heat exchange unit with the externally-cooled solution is applied to the field of heat supply equipment.

Description

Technical field [0001] The invention relates to a heat exchange unit, in particular to a lithium bromide absorption heat exchange unit with solution external cooling, and belongs to the field of heating equipment. Background technique [0002] The conventional lithium bromide absorption heat exchange unit uses dilute solution to cool the concentrated solution. The viscosity of the lithium bromide solution is relatively large, and the heat transfer coefficient of the solution heat exchanger is relatively small, resulting in a larger area of ​​the solution heat exchanger, and the temperature of the dilute solution is relatively high , The cooling effect is not good, resulting in an increase in the heat exchange area of ​​other parts of the unit. If the secondary water is used to cool the concentrated solution, the viscosity of the secondary water is smaller and the heat transfer coefficient of the heat exchanger is larger, the area of ​​the concentrated solution cooler used can be ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large total area and high manufacturing cost of the existing absorption heat exchange unit, the present invention further proposes a lithium bromide absorption heat exchange unit with solution external cooling

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