Control method and system of multi-split heat pump system

A technology of a heat pump system and a control method, which is applied in the field of heat pumps and can solve problems such as inability to realize online coordinated control

Active Publication Date: 2019-07-05
GUANGDONG PHNIX ECO ENERGY SOLUTION
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] The invention provides a control method and system for a multi-connected heat pump system to solve the technical problem that the existing simultaneous on and

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  • Control method and system of multi-split heat pump system
  • Control method and system of multi-split heat pump system

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Embodiment Construction

[0089] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0090] See figure 1 , a preferred embodiment of the present invention provides a control method for a multi-connected heat pump system, at least including the following steps:

[0091] S1. Setting the priority of each heat pump unit of the heat pump system, and determining the priority sequence of all heat pump units according to the priority.

[0092]In this embodiment, by implanting the online coordination control program in the control board of each heat pump u...

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Abstract

The invention discloses a control method of a multi-split heat pump system. The control method comprises the following steps that the priority of each heat pump unit of the heat pump system is set, and the priority sequence of all the heat pump units is determined according to the priority; the heat pump unit with the highest priority is selected as an on-line coordination control main machine, and the heat pump units with the priority lower than the on-line coordination control main machine are used as on-line coordination control slave machines; wherein each on-line coordination control slave machine is controlled by the on-line coordination control main machine; when the heat pump system operates, the on-line coordination control main machine controls all the heat pump units to be started or closed in sequence according to the priority sequence, and a heating mode is operated according to the water level and the water temperature of a current water tank; and the heating mode comprises a direct heating mode or a circulating heating mode. The control method of the multi-split heat pump system can effectively realize on-line coordinated control of a plurality of heat pump units, and is convenient to control and efficient and energy-saving. The invention further provides a control system of the multi-split heat pump system.

Description

technical field [0001] The invention relates to the technical field of heat pumps, in particular to a control method and system for a multi-connected heat pump system. Background technique [0002] At present, heat pump hot water units usually require multiple heat pump units to heat the water in the water tank to meet the needs of users. The existing control methods for multiple heat pump water heaters mainly use the same on and off control method or the centralized control method , but these two control methods have the following problems: [0003] For the control method of simultaneous on and off, when the user needs to use hot water or the current temperature in the water tank cannot meet the user's needs, multiple heat pump units are turned on at the same time, and when the user does not need to use hot water or the water temperature in the water tank meets the user's demand, Simultaneously shut down multiple heat pump units, the inventor found problems when implementi...

Claims

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Application Information

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IPC IPC(8): F24H9/20F24D19/10
CPCF24D19/1054F24H9/2007
Inventor 肖威罗金星李干春吴洁云雷朋飞
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION
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