High-efficiency energy-saving air conditioning system used for area cold supplying and its implementing method

Abstract

The invention provides a high-efficient and energy-saving air-conditioning system used for district cooling, which comprises a refrigeration host, a chilled water primary pump, a chilled water secondary pump, a plate heat exchanger, a new air processing device, a return air processing device, a new air pre-processing device, a user chilled water circulating pump and a total heat exchanger. The invention further provides a realization method of the air-conditioning system. The high-efficient and energy-saving air-conditioning system and the realization method of the invention are based on the second law of thermodynamics and the economic optimized scientific energy utilization principle, and realizes the purposes of increasing the temperature difference between the supply water and the return water of a chilled water secondary pipeline and reducing the flow rate thereof by the method of connecting two levels of refrigeration with the refrigeration host in series and the innovative cold energy gradual utilization of a tail-end device. Therefore, the energy consumption of the chilled water secondary pump and the initial investment of the secondary pipeline network are reduced, the economic benefits and the energy utilization ratio are improved, and the advantages of the district cooling system are further played.

Description

technical field [0001] The invention relates to a high-efficiency energy-saving technology of a building air-conditioning system, in particular to a high-efficiency energy-saving air-conditioning system suitable for the step-by-step utilization of cooling capacity for district cooling and its realization method. Background technique [0002] At present, with the rapid development of my country's economy, the demand for energy has increased rapidly, and the contradiction between supply and demand of energy has become increasingly acute. On the other hand, the reality is that my country's energy utilization efficiency is far lower than that of developed countries. Therefore, an effective way to solve the current energy dilemma in our country is to improve energy utilization efficiency. my country's building energy consumption accounts for about 30% of the country's total energy consumption, and the unit energy consumption is much higher than that of developed countries; the e...

AI Technical Summary

Problems solved by technology

When the temperature difference between the supply and return water of the chilled water secondary pipe network increases, and the temperature of the return water rises more, what form of air conditioning system should be used to utilize the cooling capacity delivered by the chilled water, and how to produce refrigeration with a large temperature difference? Water is a problem that cannot be solved by the existing air conditioning system, and it must be possible to develop a new air conditioning system

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