Industrial cold and hot balancing set system control method and control device of industrial cold and hot balancing set system control method

Abstract

The invention discloses an industrial cold and hot balancing set system control method and a control device of the industrial cold and hot balancing set system control method, and relates to an energy recycling system control method for a heating and refrigerating combination system and a control device of the energy recycling system control method for the heating and refrigerating combination system. According to cooling and heating load states of a temperature rise plant, a hot water washing plant and a cooling and dehumidification plant, the operation mode of a cold and hot balancing set is determined, and the cold and hot balancing set is controlled to get into the cold and heat balancing configuration or the heat pump configuration; rotating speed frequency conversion control is carried out on a cold water coil fan and a hot water coil fan of a combined air cabinet according to the plant temperature difference and the temperature and humidity deviation, the cooling and dehumidification dynamic control can be achieved, and the stability of the temperature of the temperature rise plant is guaranteed; the cold and hot balancing set is controlled by the control device, balance transferring of cold and heat loads is achieved, the requirements for the cold and heat loads, and the temperature and the humidity of the plants are met, effective balancing of the cold and heat loads is guaranteed, the device using rate is high, cost is low, energy is effectively used, and energy resources are sufficiently saved.

Description

technical field [0001] The invention relates to a control method and a control device for an energy recovery and utilization system used in a combined heating and cooling system, in particular to a control method and a control device for an industrial cooling and heating balance unit system. Background technique [0002] Energy consumption in my country's industrial sector accounts for about 70% of the country's total energy consumption, and the average unit energy consumption of major industrial products is about 30% higher than the international advanced level. In addition to factors such as relatively backward production technology and unreasonable industrial structure, the low utilization rate of industrial waste heat is an important reason for high energy consumption. my country's energy utilization rate is only about 33%, which is about 10% lower than that of developed countries, and at least 50%. Industrial energy consumption is directly discarded as waste heat in vari...

AI Technical Summary

Problems solved by technology

However, because each industrial enterprise has different energy consumption conditions, and there is no detailed research on the actual needs of the enterprise, the use of the above-mentioned general-purpose cooling and heating balance unit equipment cannot make rational use of the cooling and heating loads, and cannot Effectively save investment costs, and may even cause a decrease in the utilization rate of equipment, and it is difficult to effectively control the system to achieve long-term safe, stable, and efficient operation

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