Distributed refrigeration control system for storage refrigeration house and control method of distributed refrigeration control system

Abstract

The invention relates to a distributed refrigeration control system for a storage refrigeration house and a control method of the distributed refrigeration control system. The distributed refrigeration control system comprises a microcontroller, a sensor, an input display screen, heating power expansion valves, a water regulating valve, a high and low pressure control valve, a compressor, a condenser, evaporators and a liquid accumulator, wherein the microcontroller is connected with the sensor, the input display screen, the heating power expansion valves, the water regulating valve and the high and low pressure control valve respectively; the high and low pressure control valve is connected with the compressor; the water regulating valve is connected with the condenser; the heating power expansion valves are connected with the evaporators; the evaporators are connected with the liquid accumulator; the method comprises the steps of training the neural network, collecting parameters, inputting data, outputting data and the like; through the adoption of the system and the method, the control mode and control process can be automatically regulated according to the application purposes and application environment of the control system.

Description

technical field [0001] The invention relates to a refrigeration control system and its control method, in particular to a distributed refrigeration control system and its control method for storage and cold storage. Background technique [0002] The refrigeration control system is to control the working process of the refrigeration system. Its purpose is to improve the working efficiency of the refrigeration system, so that the refrigeration system can realize the working process and working mode of the refrigeration system according to the user's needs according to the preset refrigeration purpose. With the development of computer and automatic control technology, the degree of automation and intelligence of the refrigeration control system is getting higher and higher. At the same time, due to the application requirements of energy saving and environmental protection, the requirements for the control accuracy and control response sensitivity of the refrigeration control sys...

AI Technical Summary

Problems solved by technology

This control mode is relatively simple to implement, but the control process is relatively rough. In the refrigeration control process, the most likely phenomenon is the proper process of continuous opening and closing of the control process. Once the refrigeration system starts to work, the temperature sensor will quickly When the measured ambient temperature is lower than the target temperature, the refrigeration system is turned off at this time, but when the refrigeration system is turned off, the ambient temperature quickly exceeds the set target temperature, which causes the refrigeration system to be turned on and off frequently. This working mode is not conducive to environmental protection and energy saving, but it is also easy to cause the failure of the refrigeration system. The main reason for this phenomenon is that the control system for the refrigeration process is not fine enough, and the control conditions and control modes are too simple. Only simple comparison and temperature control based on temperature values ​​cannot achieve high-precision refrigeration control application purposes

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