Multi-connection system and its control method and device

A multi-line system and control method technology, applied in the field of multi-line systems, can solve the problems of shortened system life, short compressor running time, long compressor running time, etc., to avoid excessively long cumulative running time and prolong the use The effect of longevity

Active Publication Date: 2020-09-04
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the design service life of the multi-cluster system, there may be an unbalanced situation in which some compressors run for too long while the rest of the compressors run for a short time, which may lead to a shortened system life

Method used

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  • Multi-connection system and its control method and device
  • Multi-connection system and its control method and device
  • Multi-connection system and its control method and device

Examples

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] The multi-connected system and its control method and device according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0031] The multi-connected system of the embodiment of the present invention includes multiple compressors, and the multiple compressors are connected in parallel, that is, the inlet ports of the multiple compressors are connected together, and the exhaust ports are connected together. The multi-connected system has a standby state and an opera...

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Abstract

The invention discloses a variable refrigerant volume system and a control method and device thereof. The variable refrigerant volume system comprises multiple compressors which are connected in parallel. The control method comprises the following steps that the accumulative running time of each compressor is acquired every preset time; the longest running time and the shortest running time in the accumulative running time are acquired according to the accumulative running time of each compressor; whether the on-duty switching condition is met or not is judged according to the longest running time and the shortest running time; if the on-duty switching condition is met, the starting sequence of the compressor corresponding to the shortest running time is put in the first place, therefore, on-duty switching is conducted on the compressors, and the running time of the compressors tends to balance. According to the method, the running time of the compressors can tend to balance, the condition that the accumulative running time of a certain compressor or some compressors is too long is avoided, and then the service life of a complete machine can be prolonged.

Description

technical field [0001] The present invention relates to the technical field of multi-connection systems, in particular to a control method of a multi-connection system, a non-transitory computer-readable storage medium, a control device of a multi-connection system and a multi-connection system. Background technique [0002] For a commercial multi-stage system, due to its large operating load coverage, its external unit usually uses a multi-compressor design, such as setting 2 to 3 compressors in the external unit. Only one or two compressors need to be turned on under low load conditions, and more compressors can be turned on as the load increases. During the design service life of the multi-cluster system, some compressors may run for too long while the rest of the compressors run for a short period of time, which may shorten the life of the whole system. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F25B31/00
CPCF25B31/00F25B49/022F25B2400/075F25B2400/077F25B2500/06F25B2600/01F25B2600/0251
Inventor 易德波何俊飞
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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