Heat energy utilization method and heat energy utilization system for air conditioning

Abstract

The invention discloses a heat energy utilization system for air conditioning. The system comprises an active fluid loop, wherein a node is formed in the loop; a first-class heat exchanger is connected to the node; and a component B is separated from a fluid A at the node and carries out heat exchange with air to be treated or other substances through the first-class heat exchanger, and then returns to the active fluid loop through the node and carries out heat exchange with non-B components in the active fluid loop. Through the system, long-distance and high-density conveying for heat energy can be realized through a low pipeline and low energy consumption; and meanwhile, efficient heat exchange can be realized by virtue of a universal tail end, an energy accumulation function can be realized, and a load can be effectively adjusted. The invention further discloses a heat energy utilization method based on the system. The heat energy utilization method has the characteristics of being efficient, comfortable, environment-friendly, energy-saving, flexible, simple, economic and the like, and is capable of replacing various mainstream air conditioning methods at present, and wide in application prospect.

Description

technical field [0001] The invention relates to a new type of heat energy utilization system and method for air conditioning, in particular to a loop with a source, an air conditioning system connected with an air treatment terminal on the loop, and an air conditioning method using the system. Background technique [0002] At present, there are two main types of mainstream centralized air-conditioning systems, one is the air-conditioning system based on chillers or heat pumps, and the other is the air-conditioning system based on ice storage. [0003] In the traditional centralized air conditioning system based on chillers, although the efficiency of chillers has been greatly improved with the advancement of technology, the coefficient of performance has been greatly improved, but because the temperature difference between cold water or hot water cannot be too large, water is used as the system for transferring heat fluid , the energy consumption of water pumps is high, espe...

AI Technical Summary

Problems solved by technology

[0003] In the traditional centralized air conditioning system based on chillers, although the efficiency of chillers has been greatly improved with the advancement of technology, the coefficient of performance has been greatly improved, but because the temperature difference between cold water or hot water cannot be too large, water is used as the system for transferring heat fluid , the energy consumption of water pumps is high, especially for large-scale air-conditioning systems, such as district cooling and heating systems; at the same time, the load adjustment of large-scale systems is inconvenient, and there is often the phenomenon of large horses dragging small carts. The load balance is unfavorable, and the general air conditioning system often does not have energy storage air conditioners to adjust the load and balance the power grid

[0004] The ice storage system has the function of energy storage, but its system is complex and the coefficient of performance of the refrigerant is low. Most systems still use ice to produce cold water and send it to the end. Therefore, like the chiller system, there is water as the heat transfer fluid with low density. question

[0005] There are also studies trying to use phase-change fluids, such as phase-change emulsified liquids instead of water to achieve thermal energy transmission, but because the idea is that the phase-change fluids directly enter the heat exchangers, including the air heat exchangers at each end, so the phase-change fluid Strict requirements, such as heat transfer performance, uniformity of phase change fluid, etc., and the change of phase change fluid often leads to blockage of heat exchanger, etc.

Images