A control method of chilled water type inter-row air conditioner

Abstract

The invention discloses a control method of the chilled water type train room air conditioner. The train room air conditioner can obtained an air supply temperature T1, a remote temperature T2 and anair return temperature T3. The control method comprises the following steps that according to different conditions of the indoor temperature, an air supply temperature set value Tset 1, a return air temperature set value Tset 2 and a remote temperature set value Tset 3 are used as control targets, and the opening degree of a chilled water valve is controlled. According to the control method, the multiple targets are controlled under the different conditions so as to control the temperature of a machine room can accurately, so that the temperature control precision is improved, indoor cooling time is shortened, energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method for chilled water type inter-row air conditioners. Background technique [0002] With the rapid development of the communication industry, for example, server cabinets in computer rooms such as data centers generate more and more heat, and server cabinets are prone to local hot spots. These problems make it difficult to control the temperature in the computer room. To solve this problem, the existing practice is to place chilled water-type inter-row air conditioners in the rack arrangement and install them side by side with the server cabinets. Wind mode to solve the problem of mixing hot and cold air flow and short circuit in conventional air conditioners. [0003] However, the existing inter-row air conditioner control method is to control the opening of the chilled water valve through the single target of the return air temperature (that is, to contr...

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Problems solved by technology

[0003] However, the existing inter-row air conditioner control method is to control the opening of the chilled water valve through the single target of the return air temperature (that is, to control the flow of chilled water). When this control method is used to adjust the opening of the chilled water valve, If the adjustment ratio is too large, it is easy to cause large fluctuations in the temperature in the equipment room. If the adjustment ratio is too small, it will cause long adjustment time.

In addition, this method of single-objective control also has disadvantages such as high energy consumption and uneven temperature distribution in the cold aisle and / or hot aisle, especially for the elimination of local hot spots.

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