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 problems to achieve the effect of ensuring operational safety, improving service life, and consistent startup time.

CN102353122AActive Publication Date: 2012-02-15TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-02-15

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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 present invention relates to the technical field of air conditioning, and more specifically, relates to a modular multi-connection control method and a system thereof. Background technique

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

Examples

Embodiment Construction

[0039] For large-scale 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 improve the capacity output of multiple units and meet the needs of multiple indoor units with different loads. need. The purpose of the present invention is to distribute the total capacity load of the modular multi-connected air conditioning system to the main engine and different auxiliary machines as evenly as possible. Based on the principle of the highest part-load energy efficiency ratio of the host, set the optimal load point of the host, and make the cooling of the host run 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 will run to the optimal load point, and the insufficient load will be evenly distributed to each auxiliary engine as muc...