Water vapor heat pump system with solar supplementary heating

Abstract

The invention discloses a water vapor heat pump system with solar supplementary heating. The water vapor heat pump system includes a water vapor heat pump subsystem and a solar heat collection system,wherein a solar heat collection subsystem is connected to the water vapor heat pump subsystem for carrying out supplementary heat treatment on low-grade waste heat input externally and then transporting the treated low-grade waste heat to the a water vapor heat pump subsystem; and the water vapor heat pump subsystem is connected to the solar heat collection subsystem and is used to recover the low-grade waste heat after supplementary heat treatment. According to the water vapor heat pump system with solar supplementary heat, the low-grade waste heat in the industry can be effectively recovered through the water vapor heat pump subsystem, and meanwhile, by using the solar heat collection subsystem to supplement heat, the suction temperature of the water vapor heat pump subsystem is increased, water spraying temperature reduction is carried out on a compressor, the compressor exhaust temperature and power consumption are reduced, the efficiency of a water vapor heat pump is improved, compared with a system without supplemental heat, the effects of energy saving and emission reduction are achieved, and the water vapor heat pump system has significant production practice significance.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a steam heat pump system with solar energy supplementary heat. Background technique [0002] At present, with the rapid development of economy and technology, serious energy consumption and environmental damage have become the main problems faced by countries all over the world. At present, there is a large amount of low-grade waste heat at relatively low temperatures (such as 30°C to 40°C) in production and life, such as the condensation heat of refrigeration systems. This part of low-grade waste heat is often directly discharged into the environment, causing a lot of energy waste. How to recover this part of low-grade heat without causing environmental pollution is an important problem at present. [0003] Heat pump is an important technical means of waste heat recovery, and its working medium has also attracted attention. As the fourth-generation refrigeration me...

AI Technical Summary

Problems solved by technology

At present, there is a large amount of low-grade waste heat at relatively low temperatures (such as 30°C to 40°C) in production and life, such as the condensation heat of refrigeration systems. This part of low-grade waste heat is often directly discharged into the environment, resulting in a large amount of energy waste.

Images