Backheating type sodium rhodanate-ammonia absorption heat pump system

Abstract

The invention relates to a regenerative sodium rhodanate-ammonia absorption heat pump system, belonging to the air-conditioning technical field, wherein, an outer pipe of a multi-inner-pipe double-pipe heat exchanger is connected with a circulating water inlet and a circulating water outlet; one ends of three inner pipes are respectively connected with an ammonia steam outlet of a generator, a thin rhodanate-ammonia solution outlet and a heat exchange coil pipe inlet in an absorber, and the corresponding other ends of the three inner pipes are respectively connected with a primary throttle, a nozzle in the absorber and a thick rhodanate-ammonia solution outlet at the bottom of the absorber; the other end of the primary throttle is connected with an inlet of an evaporator through an outer pipe of a single-inner-pipe double-pipe heat exchanger and a secondary throttle in turn; and an outlet of the evaporator is connected with an ammonia gas inlet of the absorber through an inner pipe of the single-inner-pipe double-pipe heat exchanger. The regenerative sodium rhodanate-ammonia absorption heat pump system uses rhodanate-ammonia as refrigeration working substances to prepare the temperature below zero and simultaneously removes a rectification device for an ammonia water system; moreover, the requirements of a driving system can be met and high refrigeration efficiency can be reached with low heat source temperature.

Description

technical field [0001] The invention relates to a regenerative sodium thiocyanate-ammonia absorption heat pump system, which is applied to occasions where there are waste heat sources and heating, cooling and hot water supply equipment are required, such as in indoor air conditioners, automobile air conditioners, and some refrigerators , belongs to the technical field of air conditioning. Background technique [0002] At present, the CFC working fluid used in compression refrigerators destroys the ozone layer of the atmosphere, which has a huge harmful impact on human health and the ecological environment on which it depends. Solving the problem of ozone layer destruction has become an urgent task for all countries in the world. At the same time, there is a large amount of waste heat in the world that has not yet been developed and utilized, and other low-temperature heat sources, such as solar energy and geothermal energy, have not been fully utilized. For these low-temper...

AI Technical Summary

Problems solved by technology

The working fluid of this system is ammonia and water, so it must be equipped with a rectification device. At the same time, there are also ammonia water systems that use siphon pumps for circulation, but compared with solution pumps, the cooling capacity is generally small, and it is difficult to use for large cooling capacity requirements. Occasions, and the cooling capacity is not easy to adjust

Images