Energy-saving automatic control system and method of evaporative type cooling/condensing device

Abstract

The invention relates to an energy-saving automatic control system of an evaporative type cooling/condensing device. The system comprises an intelligent temperature transmitter, a control unit, a transducer and an efficient energy-saving motor. According to the energy-saving automatic control system, the temperature value which is monitored by the intelligent temperature transmitter in real time and a target set temperature value of an HMI are compared and analyzed through a PLC program, a logic control instruction is output based on the analysis result according to the running mode and the running conditions preset by the PLC program, the transducer receives the control instruction and a speed regulation signal through a USB communication protocol, accordingly, a frequency conversion fan motor is driven to start or stop and automatically run in a speed regulation mode, so that it is achieved that the evaporative type cooling/condensing device automatically regulates the output power according to the temperature variation, and the automatic energy-saving running is achieved. Compared with an existing control technology, the energy-saving automatic control system has the advantages of reducing the energy loss of the device, improving the running efficiency and achieving automatic energy-saving running.

Description

Technical field [0001] The invention relates to the technical field of energy-saving automatic control of industrial heat exchange equipment, in particular to an energy-saving automatic control system and method for evaporative cooling / condensing equipment. Background technique [0002] At the beginning of 2017, the "Thirteenth Five-Year Plan for Energy Conservation and Emission Reduction" issued by the State Council clearly stated that it is necessary to strengthen industrial energy conservation, implement industrial energy efficiency catch-up actions, strengthen energy consumption management and control in high-energy-consuming industries, and fully implement energy efficiency measures in key energy-consuming industries. Promote the construction of energy management and control centers for industrial enterprises, and promote industrial intelligent energy monitoring and diagnosis technologies. [0003] The high-efficiency composite evaporative cooler (condenser) is a high-efficien...

AI Technical Summary

Problems solved by technology

There are deficiencies in the existing cooling (condenser) equipment control methods: First, the operator manually adjusts the number of fans running according to the outlet temperature of the equipment to control the air volume. When the air volume needs to be reduced, it can only be released Excess air volume to achieve, resulting in a great waste of energy

The second is the frequent start-up of the fan, especially at the moment of start-up, the start-up of the fan will cause a current shock, resulting in a waste of electric energy

The existing control method not only has low work efficiency, but also is prone to operation delay or error, which affects the stable operation of the equipment

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