Ice-chilling air conditioning system

Abstract

The invention relates to an ice accumulating cold air-conditioning system. By adopting the proposal, the air-conditioning system can work in five cooling modes, so as to utilizing the electrical power at trough period of electricity utilization to the utmost extent, and use the way of double series connection for conveniently changing various current states with suitability; due to the unique serpent-type steel coiled pipe structure and excellent heat transfer property, the ice accumulating cold air-conditioning system leads the water to be frozen into ice layers having the thickness of 25 mm to be covered on the outer wall of the coiled pipe in final period of refrigeration, gaps exist among the ice layers, the temperature of the water is still 0 DEG C, and no ice bridge is formed; therefore, uniform heat exchange can be ensured, the temperature at the glycol outlet is consistent when refrigeration agent is adopted, the cold extraction process can be controlled, and the ice extraction rate reaches 100%. A single serpentine tube with the length of 100m is wound on a support frame, external-melt ice equipment can provide chilled water with consistent 1 DEG C, and the use of CFC and the emission of CO2 can be reduced by district cooling. The invention also provides a method for effectively balancing electrical load.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an ice cold storage air conditioner. Background technique [0002] In recent years, with the rapid development of my country's economy, the power industry has also developed rapidly. However, in some economically developed areas, electricity consumption is still very tight, which has become a bottleneck restricting economic development. Due to the low load rate of the power grid and the large peak-to-valley difference in the power supply system, power supply is in short supply during peak electricity consumption. Rapid growth, especially the sudden increase in electricity load in summer, has made the urban power grid far unable to adapt. Therefore, "transferring peak power" and making full use of nighttime power has become an important and long-term task for the government and power management departments to alleviate power shortages. One of the measures, and through the formulation of the ...

AI Technical Summary

Problems solved by technology

[0005] In Patent No. 03236023.1, an ice-storage air conditioner is introduced, which uses a compressor, an air-cooled heat exchanger, a high-pressure liquid reservoir, a throttling mechanism, a gas-liquid separator, and a disk installed inside an external ice-melting energy storage tank. The refrigerant circuit composed of tube heat exchangers effectively overcomes the defects of frequent start / stop of air-cooled chillers when the air-conditioning load is low, poor quick response of the air-conditioning system, and complex structure. Ice is taken from the ice tank directly. When there is no ice in the ice storage tank, the compressor still needs to pass there. Store ice in the ice storage tank alone during free time

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