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Multi-connected air-conditioning system, its energy-saving control method, and energy-saving control device

A multi-connected air conditioner, energy-saving control technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve problems such as extending operating time, affecting comfort, affecting user comfort, etc., to reduce the number of , to ensure the effect of comfort

Active Publication Date: 2016-04-27
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

[0005] However, the method of setting the upper limit has the following problems: 1) The outdoor unit compressor must operate at the upper limit frequency for a long time to realize the adjustment of the indoor temperature and make the outdoor unit compressor reach a stable operating frequency, Prolonged running time; 2) When the operating frequency of the outdoor unit compressor is limited, it will affect the performance of all connected indoor units, and may even affect the comfort of most users due to the high demand of a small number of indoor units
[0006] Therefore, on the basis of saving electric energy, how to avoid too long operation adjustment time and avoid affecting the comfort of many users has become a technical problem to be solved urgently.

Method used

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  • Multi-connected air-conditioning system, its energy-saving control method, and energy-saving control device

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Embodiment approach 1

[0124] Any of the field gateways 402 further includes: a ratio setting module 402G, configured to set or adjust the preset ratio according to the received setting instruction.

[0125] In this way, only the field gateway 402 can be set, and the user can set the corresponding preset ratio of the corresponding indoor to set.

Embodiment approach 2

[0127] Such as Figure 6 As shown, the energy-saving control device further includes: a host computer 406 connected to the at least one field gateway 402 and configured to set or adjust the preset ratio according to the received setting instruction.

[0128] In this way, in order to facilitate the centralized management of multiple field gateways 402, a host computer 406 connected to all field gateways 402 can be set, thereby avoiding walking back and forth between multiple field gateways 402, which helps to simplify the operation process , improve operational efficiency.

[0129] In the various implementations above, by setting a larger preset ratio (such as 80%), it helps to ensure the user's comfort; and by setting a smaller preset ratio (such as 50%), it helps To achieve better power saving and energy saving effect. Especially when different preset ratios are set for different indoor units 404B, a smaller preset ratio can be set for rooms with higher demand parameter val...

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Abstract

The invention provides an energy conservation method of a VRF (varied refrigerant volume) air conditioning system. The method includes: collecting the real-time requirement parameter value of an optional indoor unit in a VRF air conditioning system; judging whether the real-time requirement parameter value is larger than or equals to the preset requirement parameter threshold or not; if so, using the preset requirement parameter threshold as the real-time requirement parameter value corresponding to the optional indoor unit and using the same to control the operation frequency of the compressors in the VRF air conditioning system. The invention further provides an energy conservation control device of the VRF air conditioning system and the VRF air conditioning system. By the arrangement, power saving control can be performed aiming at the requirement of one single indoor unit, the operation of the whole air conditioning system is prevented from being influenced by the excessively high requirements of parts of the indoor units, and comfortableness of users can be guaranteed favorably.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to an energy-saving control method and an energy-saving control device for a multi-connected air-conditioning system, and a multi-connected air-conditioning system. Background technique [0002] In the multi-connected air conditioning system, an outdoor unit is composed of one outdoor unit or multiple outdoor units. The outdoor unit is connected to multiple indoor units and provides services for the connected indoor units to meet the needs of the indoor units. [0003] The outdoor unit needs to adjust the operating frequency of the compressor according to the needs of all connected indoor units. For example, when the sum of the demands of each indoor unit is relatively large, the compressor needs a higher operating frequency. The sum of the demands of the individual indoor units decreases, and the compressor returns to a lower operating frequency. [0004] However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02
Inventor 阎杰梁锐尚建武詹艳高建军徐铭轩
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD