Cooling tower fan optimal control system and method

Abstract

The invention relates to a cooling tower fan optimal control system and method. The system comprises multiple cooling towers, a central controller, a cooling water inlet water temperature sensor, a cooling water outlet water temperature sensor, an outdoor temperature and humidity sensor and a cooling water transition confluence tank, wherein the cooling water inlet water temperature sensor is arranged at a water inlet of a refrigeration unit condenser, the cooling water outlet water temperature sensor is arranged at a water outlet of the refrigeration unit condenser, a flow control valve is arranged at an inlet of each cooling tower, an energy-saving controller, a temperature sensor for cooling water in a tower and a cooling fan, and the central controller is respectively connected with the cooling water inlet water temperature sensor, the cooling water outlet water temperature sensor, the outdoor temperature and humidity sensor, the energy-saving controllers and the flow control valves. Compared with the prior art, the cooling tower fan optimal control system provided by the invention has the advantages of automatic energy saving control, obvious energy saving effect, low production cost and the like.

Description

technical field [0001] The invention relates to the technical field of energy saving, in particular to a cooling tower fan optimization control system and method. Background technique [0002] With the shortage of energy resources in the world and the increasing environmental pressure brought about by global warming, saving energy and protecting the environment have become major issues that cannot be ignored by countries all over the world. The energy consumption of the central air-conditioning system accounts for more than half of the energy consumption of buildings, of which the energy consumption of fans and other equipment accounts for a large part. [0003] The cooling tower is an essential part of the water-cooled central air-conditioning system. The outlet water temperature of the cooling tower has a great influence on the operating efficiency of the central air-conditioning refrigerator. On the premise that the outlet water temperature is not lower than the minimum ...

AI Technical Summary

Problems solved by technology

In this patent, even if the outlet water temperature of the cooling tower can be changed, it cannot be changed according to the outdoor air state, and cannot be close to the minimum outlet water temperature value that the cooling tower can achieve in a certain outdoor air state

The result is that the cooling tower fails to take advantage of the favorable conditions of the changing outdoor air conditions throughout the year, making the actual operation of the chiller less energy efficient, resulting in wasted energy

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