A control method and system for a multi-connected 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: 2021-04-13
GUANGDONG PHNIX ECO ENERGY SOLUTION
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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 off or centralized control methods cannot realize online coordinated control. Coordinated control, not only convenient to control but also efficient and energy-saving
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[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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The invention discloses a control method for a multi-line heat pump system, which includes setting the priority of each heat pump unit of the heat pump system, and determining the priority order of all heat pump units according to the priority; The heat pump unit is selected as the online coordination control master, and the heat pump units with a priority lower than the online coordination control master are all used as online coordination control slaves; wherein, each of the online coordination control slaves is controlled by the online coordination control master control; when the heat pump system is running, the online coordinated control host controls all heat pump units to start or shut down sequentially according to the priority order, and operates the heating mode according to the current water level and water temperature of the water tank; the heating mode includes direct heating Heating mode or hydronic heating mode. The invention can effectively realize on-line coordinated control of multiple heat pump units, which is not only convenient to control but also highly efficient and energy-saving. The invention also provides a control system for a multi-connected 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...
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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