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Water chilling unit and start-stop control method and device thereof

A technology of start-stop control and chiller, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., and can solve problems such as frequent startup of refrigerators

Inactive Publication Date: 2021-04-30
XINAO SHUNENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a water chiller and its start-stop control method and device to solve the problem in the prior art that the refrigerator frequently starts when the required cooling capacity is small

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  • Water chilling unit and start-stop control method and device thereof
  • Water chilling unit and start-stop control method and device thereof

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Embodiment Construction

[0011] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0012] Explanation of technical terms in the following: refrigerator refers to a machine that transfers the heat of a cooled object with a lower temperature to the ambient medium to obtain cooling capacity. In practice, multiple refrigerators are generally used in combination, so the refrigeration The machine is also called: chiller or unit.

[0013] The inventors have found through research that...

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Abstract

The invention is applicable to the technical field of automatic control, and provides a water chilling unit and a start-stop control method and device thereof. The method comprises the following steps that the start-stop state of the unit is monitored; based on the start-stop state of the unit, the water supply temperature set value of the unit is obtained again; the water supply temperature set value of the unit is updated to the newly obtained water supply temperature set value; and the start and stop of the unit is controlled according to the start-stop control logic of the unit under the updated water supply temperature set value. According to the water chilling unit and the start-stop control method and device thereof, under the condition that the refrigerating load rate of the unit is small, the problem that the unit is frequently started and stopped is solved.

Description

technical field [0001] The invention belongs to the technical field of automation control, and in particular relates to a water chiller and its start-stop control method and device. Background technique [0002] The existing refrigerator has the function of automatically adjusting the cooling capacity. For example, when the cooling capacity required by the system reaches the demand, that is, when the water temperature of the refrigerator reaches the set value, the refrigerator will automatically stop. In actual use, it is found that when the required cooling capacity is small and lasts for a long time, the refrigerator will meet the demand soon after starting, that is, the water temperature of the refrigerator reaches the set value, resulting in frequent cooling of the refrigerator in the system. Start and stop. Frequent start and stop affects the life of the refrigerator and the stability of the system operation. Therefore, "how to overcome the problem of frequent start-u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/00F24F11/64F24F11/58F24F11/61
CPCF25B49/00F24F11/64F24F11/58F24F11/61
Inventor 郝赫褚玉刚安恒信黄厚开徐教权宋岩磊
Owner XINAO SHUNENG TECH CO LTD