Control system of seafood constant temperature machine

Abstract

The invention relates to a control system of a seafood constant temperature machine. The control system comprises an outdoor draught fan, a compressor, a reversing valve, a control main board, a water temperature sensor, a defrosting sensor, a display operation panel, a transformer and a variable frequency water pump, wherein the reversing valve controls a flow direction of a refrigerating agent, the water temperature sensor is used for collecting water temperature information, the defrosting sensor is used for collecting defrosting information of the outdoor draught fan, the display operation panel is used for displaying a working state of the constant temperature machine and is capable of carrying out control operation, the transformer is used for supplying stable working voltage to the control main board, and the variable frequency water pump is capable of realizing liquid transportation; the outdoor draught fan, the compressor, the water temperature sensor, the defrosting sensor, the transformer, the display operation panel and the variable frequency water pump are all connected with the control main board. According to the control system disclosed by the invention, the working state of the constant temperature machine can be displayed in real time, the operation is convenient and fast, intelligent fault judgment can be carried out, frequent error transformation between refrigerating and heating can be avoided, self-adaptive control can be realized, the working mode can be automatically switched, and the refrigeration operation of a machine unit under a low-temperature working condition can be met through sub-cooling degree control.

Description

Technical field [0001] The invention belongs to the application field of HVAC automatic control technology, and specifically relates to a seafood thermostat control system. Background technique [0002] At present, the controllers of thermostats in the market can only control the operation of the unit, and the refrigeration and heating need to be converted manually. The intelligent control of defrosting control during heating has obvious defects and insufficient consideration of the high and low temperature adaptation of the system. Summary of the invention [0003] In order to solve the above problems, the present invention proposes a seafood thermostat control system, which avoids frequent misconversions of refrigeration and heating, and can be adaptively controlled and automatically converted to working modes, and through subcooling control, it can meet the refrigeration of the unit under low temperature conditions. Running. [0004] The present invention is realized through the...

AI Technical Summary

Problems solved by technology

[0002] At present, the controllers of thermostats in the market can only control the work of the unit, and manual conversion is required for cooling and heating. The defrost control of intelligent defrost control during heating has obvious defects, and insufficient consideration is given to the high and low temperature adaptation of the system.

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