Refrigeration and heat pump composite energy system with independently controlled temperature and independently controlled humidity

Abstract

The invention discloses a refrigeration and heat pump composite energy system with independently controlled temperature and independently controlled humidity. Air is cooled by the aid of an independent refrigerating system in a temperature control process, and a dehumidification process and a regeneration process are carried out by the aid of an independent heat pump system in a humidity control process. Specifically, steam latent heat absorbed by solution in the solution dehumidification process is supplemented by an evaporator of the heat pump system, vaporization latent heat of steam in the solution regeneration process is supplemented by a condenser of the heat pump system, the temperature is controlled by an evaporator of the refrigerating system, and heat of a condenser of the refrigerating system is used for preheating dehumidifying dilute solution. The refrigeration and heat pump composite energy system has the advantages that independent matching of energy in the temperature control process and energy in the dehumidification and regeneration processes is carried out on the basis of an indoor air temperature and humidity control mechanism, and the purpose of independently controlling the temperature and the humidity is achieved.

Description

technical field [0001] The invention belongs to the application field of heating, ventilating and air-conditioning technology, and relates to indoor thermal comfort adjustment and system energy-saving process, in particular to a refrigeration-heat pump composite energy system with independent control of temperature and humidity. Background technique [0002] In recent years, extreme and severe weather has been intensified, and people's requirements for thermal comfort in indoor environments have become higher and higher. Especially in the high-temperature and high-humidity areas in southern my country, in summer, the high-temperature and high-humidity climate seriously affects the heat-humidity balance between the human body and the environment, and the thermal comfort of people's living environment is greatly reduced. According to the human body thermal comfort index PMV, temperature and humidity parameters are important key factors affecting human body thermal comfort. For...

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Problems solved by technology

The patent "An Air Conditioning System with Independent Control of Temperature and Humidity" (patent application number: 200710092891.8) discloses an air conditioning system with independent control of temperature and humidity. Realize the regeneration of the dehumidification solution and reduce the demand for other waste heat for solution regeneration. Although this technical solution can improve the utilization rate of energy, it still requires an external heat source and the system is relatively complicated.

The patent "A Method of Air Conditioning with Solution Dehumidification Combined with Cooling and Hot Side Energy of Refrigeration Compressor" (Patent Application No.: 200510018081.9) discloses a method of solution dehumidification combined with refrigeration compressor using cold and hot double side energy for air conditioning. Use the evaporating side of the compressor to process the sensible heat of the air, adjust the air temperature, and use the heat released from the condensing side of the compressor to concentrate and regenerate the solution with reduced concentration after moisture absorption. This method has the advantages of system energy matching and controllability with changes in outdoor air parameters. sexual problems

[0007] The above technical solutions have solved the problem of independent control of air temperature and humidity parameters, but most of them still require external heat sources, which leads to complex system structure and limits the scalability of the system

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