Temperature controlling and defrosting device of fruit ammonia machine refrigeratory and using method of device

Abstract

The invention discloses a temperature controlling and defrosting device of a fruit ammonia machine refrigeratory and a using method of the device. According to the device, an evaporator surface sensor and a draught fan are arranged on a refrigerating evaporator, the evaporator surface sensor is electrically connected with a central controller through an evaporating temperature controller, an intra-refrigeratory air temperature sensor is electrically connected with the central controller through an intra-refrigeratory air temperature controller, the draught fan, an ammoniacal liquor distributing station and a water pump are all electrically connected with the central controller, and the ammoniacal liquor distributing station and the water pump are both connected with the refrigerating evaporator. The device is simple in circuit structure, high in operability, capable of guaranteeing refrigerating cycle, conducting defrosting in time under the condition of frost depositing and guaranteeing frost-free operation, and energy efficient, and therefore the fruit ammonia machine refrigeratory can operate safely with low energy consumption.

Description

technical field [0001] The invention relates to a temperature-controlled defrosting device for a fruit ammonia machine cold storage and a method for using the device. Background technique [0002] The temperature in the fruit cold storage is controlled at about 0°C, and the working temperature of the refrigeration equipment is below 0°C. For example, the temperature of the evaporator is generally -5 to 15°C. Under such low temperature conditions, frosting on the surface is the inevitable result, that is, the evaporator Frosting on the surface is a sign of the cooling and heat exchange of the evaporator in the warehouse, but the frost on the surface of the evaporator forms a certain frost layer and hinders the evaporator from continuing the cooling and heat exchange process, reducing the evaporative refrigeration effect, and the frost layer reaches a certain thickness or even When frost accumulates and turns into ice, the heat transfer effect of the evaporator will be greatly...

AI Technical Summary

Problems solved by technology

Improper defrosting is more likely to cause greater energy waste

[0003] At present, the ammonia machine cold storage is manually defrosted at a fixed time. On the one hand, when the defrosting is not timely, it is common for the evaporator to run with frost, and its cooling efficiency is low.

On the other hand, regular defrosting is also likely to cause frost-free heating and increase the cooling load.

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