Multi-source multiplexed chilled water preparation system applied to cigarette factory production equipment and promotion method

Abstract

This invention discloses a multi-source reuse chilled water preparation system and improvement method for use in cigarette factory production equipment, based on the chilled water supply temperature gauge T for air conditioning. w The sensor detects the temperature to determine whether the heat exchanger is available, as follows: Scenario a: When the heat exchanger cannot be used to improve the overall energy efficiency of the chilled water preparation system for production, the chiller determines the availability based on the temperature of the chilled water supply thermometer T. s The temperature detected by the sensor is used for PID calculation of the chiller load; Case b: When the plate heat exchanger can be used to improve the overall energy efficiency of the production chilled water preparation system, the first step is to determine whether the plate heat exchanger is at full load. If it is at full load, it is handled in the manner described in case a; if it is not at full load, the plate heat exchanger is adjusted according to the temperature of the production chilled water supply thermometer T. s The temperature detected by the sensor is used to perform PID calculations on the plate heat exchanger load, and the result is used to control the electric valve Y of the heat exchanger. w The refrigeration unit is kept operating at minimum load.

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