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Control method and device of multi-unit parallel type heat pump system

A heat pump system and control method technology, applied in heat pumps, refrigerators, refrigeration components, etc., can solve problems such as unit loss and energy consumption, and achieve the effect of extending service life, avoiding unit loss and large energy consumption

Inactive Publication Date: 2020-07-17
GUANGDONG PHNIX ENERGY TECH CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to provide a control method and device for a multi-unit parallel heat pump system, which can avoid the problems of high unit loss and energy consumption caused by frequent start and stop of units when adjusting the output of the heat pump system

Method used

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  • Control method and device of multi-unit parallel type heat pump system
  • Control method and device of multi-unit parallel type heat pump system
  • Control method and device of multi-unit parallel type heat pump system

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with 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.

[0041] See figure 1 , an embodiment of the present invention provides a control method for a multi-unit parallel heat pump system, comprising the steps of:

[0042] S1. In response to the received start-up signal, when it is judged that the initial water temperature on the user side is lower than the preset temperature lower limit, control to start i compressors; wherein, the heat pump system includes N compressors, 0<i<N . In addition, when it is determined that t...

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Abstract

The invention provides a control method and device of a multi-unit parallel type heat pump system. The method comprises the steps that a received startup signal is responded to, and a proper number ofcompressors are controlled to be started according to the initial water temperature of the user side; the water temperature of the user side is acquired in real time, and the change tendency of the water temperature is acquired; and according to preset target temperature, a proper number of compressors are controlled to be started / shut off by combining the real-time water temperature of the userside and the change tendency. According to the control method and device, real-time feedback and communication of information between units and between the units and user side rooms are achieved, thenumber of the started units is confirmed according to the room water temperature detected in real time and the temperature change tendency, and therefore the work state of the heat pump system can beintelligently adjusted so as to meet the requirements of the user side, meanwhile, the problem that due to the fact that the units are frequently started and shut off, unit losses and energy consumption are large is avoided, the compressors are effectively protected, the service life is prolonged, and high efficiency and energy saving are achieved.

Description

technical field [0001] The invention relates to the field of unit control, in particular to a control method and device for a multi-unit parallel heat pump system. Background technique [0002] The existing parallel heat pump system with multiple units can only realize the simultaneous start-up and shutdown of each unit switch signal. When the temperature of the room is different during the day and night, the user side needs the equipment to provide different energy adaptively. The existing control scheme cannot output according to the actual demand of the room, and can only turn on / off multiple units at the same time, resulting in frequent start and stop of the units. The unit loss and energy consumption are relatively large. Contents of the invention [0003] The purpose of the present invention is to provide a control method and device for a multi-unit parallel heat pump system, which can avoid the problems of unit loss and high energy consumption caused by frequent st...

Claims

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Application Information

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IPC IPC(8): F24H4/02F24H9/20F25B49/02F25B30/02
CPCF24H4/02F24H9/2007F25B30/02F25B49/02F25B2400/06F25B2600/01F25B2600/02
Inventor 刘杨柳维杨佳钰
Owner GUANGDONG PHNIX ENERGY TECH CO LTD
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