Modular multi-connection control method and system

A control method and multi-connection technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problem of uneven output distribution of external machine capacity, uneven output distribution of external machines, and uneven output distribution and other issues to achieve the effect of ensuring operational safety, improving service life, and consistent startup time

CN102353122BActive Publication Date: 2013-06-19TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-06-19

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Abstract

The invention discloses a modular multi-connection control method and system. The control method comprises the following steps: determining the auxiliary engine capability requirement according to the total capability requirement of an indoor machine set and the best load point of a main engine; calculating the total number of the auxiliary engine compressors required to be input for the operation of the system according to the output capability of a single auxiliary engine compressor; and distributing the total number of the auxiliary engine compressors required to be input for the operationon average to each auxiliary engine, and distributing the parts which can not be distributed on average in each auxiliary engine one by one. According to the invention, through calculating the numberof the compressors required to be operated, the capability output of an outdoor machine set is basically and uniformly distributed to the main engine and each auxiliary engine of the outdoor machine set, the main engine and parts of auxiliary engine compressors are prevented from operating for a long time, the service life of each compressor of the whole machine set is prolonged, and the load energy efficiency ratio of the system part is improved greatly.
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Description

Technical field

[0001] The invention relates to the technical field of air conditioners, and more specifically, to a modular multi-online control method and system thereof. Background technique

[0002] The multi-line air-conditioning system only entered the Chinese market in the 1990s. It can meet consumers' requirements for comfort and convenience. Compared with traditional air-conditioning, it has the advantages of freedom of control, high efficiency and energy saving, and easy installation and maintenance. Quickly occupy an important position in the central air-conditioning market. Compared with multiple household air conditioners, its outdoor units are shared, easy to install and beautiful, and low investment. Centralized management of each indoor unit can be realized, and one indoor unit can be started individually, or multiple indoor units can be started at the same time, making the control more flexible and energy-saving.

[0003] At present, major commercial air conditio...

Examples

Embodiment Construction

[0039] For large air-conditioning units, due to the limited capacity output of a single compressor, it cannot meet the requirements of multiple indoor units working at the same time. Using multiple compressors in parallel can increase the capacity output of multiple connections and meet the different loads of multiple internal units. demand. The purpose of the present invention is to distribute the total capacity load of the modular multi-line air conditioning system as evenly as possible to the main engine and different auxiliary machines. Based on the principle of the highest partial load energy efficiency ratio of the main engine, the optimal load point of the main engine is set, and the refrigeration operation of the main engine is at the optimal load point during system control. When the total system load is greater than the optimal load point of the main engine, the main engine runs to the optimal load point, and the insufficient load is evenly distributed to each auxilia...