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Control method and device for cooling-water machine system

A control method and technology of a control device, applied in air conditioning systems, applications, heating methods, etc., can solve the problems of inaccurate adjustment process, large water temperature fluctuations, and user discomfort, so as to improve user experience, reduce water temperature fluctuations, and improve accuracy. degree of effect

Active Publication Date: 2018-06-29
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a control method and device for a chiller system, aiming to solve the problem that the adjustment process in the prior art is not accurate enough, and the water temperature fluctuates greatly during the adjustment process, which brings discomfort to the user

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  • Control method and device for cooling-water machine system
  • Control method and device for cooling-water machine system
  • Control method and device for cooling-water machine system

Examples

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Embodiment Construction

[0035]The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such ...

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Abstract

The invention discloses a control method for a cooling-water machine system, belongs to the technical field of air conditioners. The cooling-water machine system comprises a compressor unit, wherein the compressor unit comprises a variable-frequency compressor and one constant-frequency compressor or more constant-frequency compressors. The control method comprises the following steps of 1, acquiring the temperature change rate of the inflowing water temperature within a set time; 2, determining a compensation value of the working frequency of the compressor unit according to the temperature change rate; and 3, adjusting the working frequency of the variable-frequency compressor and / or the starting quantity of the constant-frequency compressors according to the compensation value. According to the embodiment of the control method, the compensation value of the working frequency of the compressors is determined according to the temperature change in certain unit time so as to control the variable-frequency compressor and the constant-frequency compressors, so that the accuracy of determining the compensation value of the working frequency of the compressors is improved, the water temperature fluctuation in the adjusting process is further reduced, and the user experience is improved. The invention further discloses a control device for the cooling-water machine system

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a control method and device for a chiller system. Background technique [0002] Air-cooled chillers are gaining market share with the advantages of energy saving, environmental protection, flexible combination, and convenient installation. They provide cold water to the air-conditioning system in the cooling season and hot water to the air-conditioning system in the heating season. They are ideal air-conditioning cold and heat sources. . The prior art discloses a control method of a fixed-frequency plus variable-frequency compressor for an industrial cooler. In order to solve the problem that the fixed-frequency compressor of a conventional industrial cooler is difficult to achieve the temperature control accuracy required by the user during operation, and to increase the compressor's The problem of power consumption. Among them, set the starting temperature point of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/64F24F11/65F24F11/83
CPCF24F5/001
Inventor 刘玉辉程绍江时斌
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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