Device for preventing ice blockage during supercooling process ice slurry production by utilizing residual heat and control method thereof

Abstract

The invention provides a device for preventing ice blockage during supercooling process ice slurry production by utilizing residual heat. A cold accumulating water storage tank, a supercooling variable pump, a supercooling relief device and a supercooler are sequentially connected in series, forming an ice slurry producing loop. A condenser is connected with the supercooler, a heat exchanger is arranged on one side of the condenser, and at the same time, the heat exchanger, a constant displacement pump and a heat accumulating water storage tank are sequentially connected in series, forming a loop. A double-pipe heat exchanger is arranged between the supercooler and the supercooling relief device, and a supercooling heat exchanger is arranged in the supercooling relief device. The output end of the heat accumulating water storage tank is provided with a blockage preventing variable pump, the output end of the blockage preventing variable pump is sequentially provided with a pressure and flow sensor and an electromagnetic valve, and the electromagnetic valve is separately connected with the double-pipe heat exchanger and the supercooling heat exchanger. Besides, pressure and flow sensors and temperature sensors are separately arranged between the supercooler and the double-pipe heat exchanger, between the double-pipe heat exchanger and the supercooling relief device, and between the supercooling relief device and the cold accumulating water storage tank. An ice blockage problem is effectively solved through recycling residual heat produced by an ice slurry producing system, and the performance is stable.

Description

technical field [0001] The invention relates to the technical field of ice slurry production anti-blocking, in particular to a device and a control method for preventing ice slurry ice blockage produced by a supercooling method by using waste heat. Background technique [0002] Ice slurry is a two-phase mixture of ice crystal particles and water. It has the characteristics of high energy storage density, good flow characteristics, and no pollution. It is widely used in air conditioning systems, industrial cooling and other fields. The technology of preparing ice slurry by supercooling water method is an indirect technology for producing fluid ice. It has the characteristics of no mechanical moving parts and simple equipment. In the process of preparing ice slurry by using supercooling method, on the one hand, the condenser of the refrigeration system It will release heat, which will easily cause the loss of system energy; on the other hand, the supercooled water is easy to c...

AI Technical Summary

Problems solved by technology

The technology of preparing ice slurry by supercooling water method is an indirect technology for producing fluid ice. It has the characteristics of no mechanical moving parts and simple equipment. In the process of preparing ice slurry by using supercooling method, on the one hand, the condenser of the refrigeration system It will release heat, which will easily cause the loss of system energy; on the other hand, the supercooled water is easy to crystallize on the inner wall of the pipe section between the supercooler and the supercooler to form an ice layer, which will eventually cause ice blockage, and then force the refrigeration system to stop

[0003] At present, the main method to prevent ice blockage is to use additives to improve the problem of ice crystallization on the inner wall of the pipe. Among them, the mechanism of using additives to prevent ice blockage is to suppress the crystallization of supercooled water by reducing the freezing temperature of the ice-making fluid, and at the same time reduce the particle size of ice crystals To weaken the adhesion of ice crystals on the wall, but still unable to completely inhibit the formation and adhesion of ice crystals, once the ice crystals adhere to the wall, it will inevitably form an ice layer; by improving the condition of the inner wall of the tube, the formation and adhesion of ice crystals can be reduced to a certain extent Adhesion, but the effect is limited, and the effect will be lost after the ice layer appears

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