An absorption heat pump with a steam nozzle

Abstract

The invention provides an absorption heat pump with a steam spraying pipe. The output temperature of the absorption heat pump can be greatly increased with low-temperature and low-pressure waste heat steam as a heat source, the low-temperature and low-pressure waste heat steam can be utilized fully and effectively, a large amount of waste heat is prevented from losing, the problem of waste heat recycling is solved, and energy is saved. The absorption heat pump comprises a solution pump, a refrigerant pump, a solution heat exchanger, a throttling valve, a generator, a condenser, an absorber and an evaporator. The evaporator is filled with refrigerant liquid, a heating steam pipeline is arranged inside a cavity formed by the refrigerant liquid, and the absorber and the generator are filled with an absorbent solution. The absorption heat pump is characterized by further comprising an expansion pipe, a steam-liquid heat exchanger and a diffuser pipe; the expansion pipe is provided with an expansion pipe inlet, a circulation inlet and an expansion pipe outlet, and the steam-liquid heat exchanger is internally provided with a heat exchanging pipe.

Description

technical field [0001] The invention relates to the technical field of waste heat utilization and energy saving, in particular to an absorption heat pump with a steam spray pipe. Background technique [0002] Using absorption heat pump technology for waste heat utilization is an effective method, which has relatively good energy saving and environmental protection benefits. It is mainly composed of a generator, a condenser, an evaporator and an absorber. Where waste heat is available, regardless of the characteristics of the waste heat, it is necessary to heat the refrigerant liquid inside the heat pump through the evaporator to evaporate it. The evaporation temperature will affect the output temperature of the heat pump, and the evaporation temperature is directly related to the temperature of the waste heat. relation. At present, the temperature of waste heat is generally low, and it is directly used to heat the refrigerant liquid to make it evaporate. The evaporation tem...

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Problems solved by technology

At present, the temperature of waste heat is generally low, and it is directly used to heat the refrigerant liquid to make it evaporate. The evaporation temperature and pressure of the refrigerant liquid are relatively low, and the output temperature of the heat pump is relatively low. For the large amount of low-temperature waste heat in metallurgy, chemical industry, building materials, electric power and other industries , all exist in the state of low-temperature and low-pressure steam. Using traditional absorption heat pumps to utilize these waste heat steam, it is quite difficult and inefficient to increase the output temperature of absorption heat pumps, so that a large amount of low-temperature, low-pressure waste heat steam cannot be effectively utilized.

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