Water chilling unit and control method and device thereof
A technology of water-cooling unit and control method, which is applied in the direction of control input involving air characteristics, heating and ventilation control system, space heating and ventilation control input, etc., which can solve the problems of inability to achieve precise frequency control and reduce energy consumption Effect
Active Publication Date: 2018-02-02
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP +2
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Problems solved by technology
However, the traditional frequency adjustment method can only realize the increase and decrease of the fixed cycle frequency, and cannot achieve precise frequency control
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[0027]Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0028] The control method of the water-cooled unit, the control device of the water-cooled unit and the water-cooled unit provided with the control device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0029] figure 1 is a flowchart of a control method for a water-cooled unit according to an embodiment of the present invention.
[0030] Such as figure 1 As shown, the control method of the water-cooled unit in the embodiment of the present invention may...
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The invention discloses a water chilling unit and a control method and device thereof. The control method comprises the following steps that the outlet water temperature of the water chilling unit isdetected, and the target outlet water temperature of the water chilling unit is obtained; the difference value between the outlet water temperature and the target outlet water temperature is obtained,and the outlet water temperature change rate is obtained according to the outlet water temperature of the water chilling unit; and the operating frequency of the water chilling unit is adjusted according to the difference value, and the frequency adjusting period is controlled according to the outlet water temperature change rate in the process that the operating frequency is adjusted. Accordingto the control method, the operating frequency of the water chilling unit can be adjusted according to the outlet water temperature, the target outlet water temperature and the outlet water temperature change rate of the water chilling unit, under the situation that the requirement for the refrigerating capacity is met, it is ensured that the water chilling unit can operate at the optimum frequency, and energy consumption is reduced.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a control method of a water-cooling unit, a control device of the water-cooling unit and a water-cooling unit with the control device. Background technique [0002] As people pay more and more attention to the energy consumption of air conditioners, frequency conversion control has become the mainstream control method in the air conditioner industry because of its stable cooling capacity adjustment and the realization of cooling capacity output under different loads. However, the traditional frequency adjustment method can only realize the increase and decrease of the fixed-period frequency, and cannot achieve precise frequency control. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. Therefore, the first object of the present invention is to propose a...
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IPC IPC(8): F24F11/00F24F11/89F24F110/10
Inventor 杨海涛李超梁涛
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP