Solar building heating and air-conditioning system with heat and humidity independent control function and method for controlling solar building heating and air-conditioning system

Abstract

The invention discloses a solar building heating and air-conditioning system with a heat and humidity independent control function and a method for controlling the solar building heating and air-conditioning system. The solar building heating and air-conditioning system comprises a solar heating system, an air-source heat pump system and a rotary dehumidification system with solid dehumidifiers; the solar heating system is connected with the rotary dehumidification system with the solid dehumidifiers by a regeneration air pipeline and a stop valve A; an outdoor evaporator of the air-source heat pump system is also used as an outdoor evaporator of the rotary dehumidification system with the solid dehumidifiers; an outdoor heat exchanger of the air-source heat pump system is also used as an outdoor heat exchanger of the rotary dehumidification system with the solid dehumidifiers. The solar building heating and air-conditioning system and the method have the advantages that controlled working conditions of heating, refrigerating, dehumidification, refrigerating and dehumidification, ventilation and the like can be individually implemented by the solar building heating and air-conditioning system according to annual climate change; the problem that air-source heat pumps cannot independently realize dehumidification effects can be solved owing to a rotary dehumidification technology which is implemented by the aid of the solid dehumidifiers by means of heating regeneration air by solar energy, heat and the humidity of an indoor environment can be independently controlled, renewable energy can be utilized, and the energy utilization efficiency and the human body thermal comfort can be improved.

Description

technical field [0001] The invention relates to the technical field of air-conditioning integrating heating, cooling and dehumidification using renewable energy, in particular to a solar building heating and air-conditioning system with independent heat and humidity control and a control method thereof. Background technique [0002] In my country, the energy consumption of building operation accounts for about 30% of the total energy consumption of the whole society, the most important of which is the energy consumption of heating and air conditioning, and it shows a rapid upward trend with the increase of the total number of buildings and the improvement of comfort. On November 26, 2009, the Chinese government announced that by 2020, carbon emissions per unit of GDP will be reduced by 40% to 45% compared to 2005. The Ministry of Finance and the Ministry of Housing and Urban-Rural Development clearly pointed out that during the "Twelfth Five-Year Plan" period, the pr...

AI Technical Summary

Problems solved by technology

Although this composite air conditioner unit increases the evaporation temperature under heat pump cooling conditions and can achieve independent dehumidification, the composite air conditioner unit is driven by electric power under heating conditions and cooling and dehumidification conditions, and still consumes a lot of power

[0007] Application number: 201010228694.6 The patent titled "a solar hot water system that can use waste heat in summer for solution dehumidification" proposes to use the waste heat of summer solar hot water system for solution dehumidification system to regenerate hygroscopic solution, so as to realize the effective use of renewable energy and reduce the The energy consumption of the air conditioning system, but the regenerative heat required by the solution dehumidification system in rainy weather or at night cannot be effectively guaranteed and an auxiliary electric heating system is required. In addition, the solution dehumidification system occupies a large area, the system is complex and has corrosion problems, which is not suitable for residual humidity small residential building

[0008] The patent application No. 201010588727.8, titled "New Energy Air-Conditioning Method and System for Building Ultra-Low-Energy Consumption Housing in New Rural Areas", proposes to adjust the air-conditioning design target parameters and make full use of natural energy such as solar energy, geothermal energy, and air energy. However, This system is aimed at the construction of extremely low-energy passive solar building houses in new rural areas. Passive solar building houses need to start from the foundation, which has poor comprehensive benefits, and the new energy air-conditioning system is complex, which cannot meet the needs of urban residents and ordinary rural houses. Comfort and building-integrated solar needs

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