Absorption type heat pump

Abstract

The invention provides an absorption type heat pump, which prevents crystallization of concentrated absorption solution due to partial load in the heating operation. A heat source water pump is disposed on the upper stream side of the heat conductive pipe through the evaporator, a flow detection mechanism is disposed on the lower stream side, a refrigerating temperature sensor is disposed on the bottom of the evaporator. When the flow of the heat water is reduced below the set value, or the heat pump stops, the operation is not immediately stopped for dilution operation of the absorbent liquid, so that crystallization of the concentrated absorption solution is prevented. Moreover, when the heat water is likely to freeze, the refrigerating temperature sensor measures the temperature of the refrigerant liquid accumulated at the bottom of the evaporator; when the temperature of the refrigerant liquid exceeds the set temperature, dilution of the absorbent liquid is carried out, which is stopped when the temperature turns below the set temperature.

Description

technical field [0001] The invention relates to an absorption heat pump. Background technique [0002] Generally, an absorption heat pump is configured such that a regenerator, a condenser, an evaporator, and an absorber are pipe-connected to form a refrigerant circulation path and an absorption liquid circulation path, and a refrigerant pump and an absorption liquid pump are provided. The driving heat source pipe passing through the inside of the regenerator is provided with a heat source water pipe passing through the inside of the evaporator, and further a warm water pipe is provided. After passing through the inside of the absorber, the warm water pipe passes inside the condenser and is Connect with load. Furthermore, when the warm water supplied to the warm water pipe passes through the absorber, it is heated by the heat of absorption when the refrigerant vapor is absorbed by the absorbing liquid, and the refrigerant vapor evaporates from the evaporator adjacent to the...

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned absorption heat pump, it is important to absorb heat efficiently from the heat source water. If the side temperature drops, not only will it not be able to absorb heat from the heat source water, but it may instead dissipate heat from the warm water passing through the absorber to the heat source water side of the evaporator

If such a heat dissipation phenomenon (hereinafter referred to as reverse heat dissipation) occurs, it will not only lose its function as a heat pump, but also cause heat loss.

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