External ice melting ice storage device capable of automatically adjusting air blowing amount

Abstract

The invention relates to an external melting ice storage device capable of automatically adjusting the air blowing amount. The device comprises an ice storage tank, the ice storage tank comprises an air blowing assembly and a liquid level sensor, the air blowing assembly comprises an air transmission main pipe and air transmission branch pipes, the air transmission main pipe is connected with an air compressor, the air compressor comprises an air return pipe, the air return pipe is provided with a pressure sensor, and the air compressor is connected with a frequency converter. The device has the advantages that the liquid level information in the ice storage tank is collected in real time through the liquid level sensor, the pressure change in the air return pipe is collected in real time through the pressure sensor arranged on the air return pipe, the frequency converter receives the information of the liquid level sensor and the pressure sensor at the same time, the rotating speed of the air compressor is comprehensively controlled according to the liquid level height of ice water and the pressure change of the air return pipe, and therefore the air blowing amount of the air blowing assembly is automatically adjusted so as to guarantee that air with enough air amount and certain pressure is blown into the ice water under different ice storage amounts, certain disturbance is formed to the ice water, the ice melting efficiency is improved, and the ice melting time is shortened.

Description

technical field [0001] The invention relates to the technical field of ice storage, in particular to an external ice-melting ice storage device capable of automatically adjusting the blowing volume. Background technique [0002] Ice storage technology can use the phase change latent heat converted from water into ice to store cold energy, and store ice in the ice storage device at night when the low-load electricity is produced, and release the stored cold energy when the ice melts during the day, reducing the power consumption of air conditioners during the peak hours of the power grid. The load and installed capacity of the air conditioning system can realize the function of "shaving peaks and filling valleys" and balancing power loads. At present, coil-type ice storage tanks are mostly used in ice storage technology. The ice-melting methods are divided into internal ice melting and external ice melting. The ice on the outer surface of the tube gradually melts to cool the...

AI Technical Summary

Problems solved by technology

The existing device blows air at the bottom of the ice storage coil to increase the disturbance, which can greatly improve the ice-melting rate and the uniformity of ice-melting. The improvement of the thermal effect is not obvious, and the disturbance speed of the ice water should not be too large, which will easily cause the water flow to mix back, which is not conducive to the external melting of ice.

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