Air conditioner cooling water system control method and device

Abstract

The invention relates to the technical field of air conditioner system control, in particular to an air conditioner cooling water system control method and device. The control method comprises the steps that the current cooling water return temperature is obtained, and the current outdoor wet bulb temperature is determined in an air conditioner cooling water system; and a first cooling tower is started according to the preset optimization sequence if the temperature difference between the current cooling water return temperature and the current outdoor wet bulb temperature is larger than a first temperature different threshold value and at least one un-started cooling tower exists, specifically, the first cooling tower is the cooling tower highest in cooling efficiency among the un-started cooling towers in the preset optimization sequence. According to the method, when the cooling tower needs to be started, the un-started cooling tower highest in cooling efficiency is selected to be started according to the preset optimization sequence, the cooling water return temperature can be lowered rapidly, and the cooling efficiency is improved; and in addition, by starting the cooling tower according to the strategy, the effect that preset control conditions can be met by starting a few cooling towers can be achieved, and therefore the system resources are saved.

Description

technical field [0001] The invention relates to the technical field of air-conditioning system control, in particular to an air-conditioning cooling water system control method and device. Background technique [0002] Such as figure 1 Shown is a structural diagram of a central air-conditioning system in the prior art, which mainly includes an air-conditioning chilled water system and an air-conditioning cooling water system, wherein the air-conditioning chilled water system is composed of a refrigeration pump, a coil fan, and chilled water pipes. The low-temperature chilled water flowing out of the host evaporator is pressurized by the chiller pump and sent into the chilled water pipe (outlet water), enters the room for heat exchange, takes away the heat in the room, and finally returns to the host evaporator (return water), used for indoor fans It is used to blow air through the chilled water pipes to lower the air temperature and accelerate indoor heat exchange, that is,...

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Problems solved by technology

[0007] The present invention provides a method and device for controlling the cooling water system of an air conditioner, which is used to solve the problem that in the prior art, the cooling towers in the air conditioning system are randomly turned on in the control strategy of the cooling water of the air conditioner, resulting in low efficiency of the strategy and waste of resources technical problem

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