A kind of sustainable heating multi-connected air conditioner and defrosting method thereof
An air conditioner and parallel technology, which is used in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of lack of continuity of indoor machine heating, affecting the comfort of indoor side, and difficulty in ensuring the heating effect of indoor machine, so as to achieve sustainable Effect of indoor heating environment
Active Publication Date: 2015-11-25
GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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Problems solved by technology
Among them, although the hot gas bypass defrosting ensures the continuity of the heat of the indoor unit, the defrosting efficiency is low due to the method of shunting the exhaust of the compressor, and it is difficult to ensure the heating effect of the indoor unit during the defrosting process.
Although reverse cycle defrosting is more efficient, for the parallel operation of modular multi-connected units, all outdoor units need to run reverse cycle at the same time during defrosting. At this time, the indoor unit also needs to stop and wait for defrosting. Periodic defrosting is carried out according to factors such as ambient temperature and pipe temperature, which makes the indoor mechanism heat lack continuity and affects the comfort of the indoor side
Method used
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[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0015] The invention provides a defrosting method for a multi-connected air conditioner with sustainable heating, comprising the following steps:
[0016] A defrosting structure is provided in each outdoor unit module of the multi-connected air conditioner;
[0017] Set up a control system that can control each defrosting structure to perform defrosting in a cycle. When the outdoor ambient temperature reaches a preset value, start the control system, and start the defrosting structure in some outdoor unit modules of the multi-connected air conditioner. In defrosting, other outdoor unit modules mai...
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The invention relates to the technical field of air-conditioning and provides a sustainable heating multi-connected air-conditioner and a defrosting method thereof. A defrosting structure and a controlling system which is capable of controlling each defrosting structure to circularly defrost are disposed in each outdoor unit module of the multi-connected air-conditioner; when the outdoor environment temperature reaches a preset value, the controlling systems are started, the defrosting structures in a part of the outdoor unit modules of the multi-connected air-conditioner are started to defrost, and the other outdoor unit modules are kept in heating modes; the part of the outdoor unit modules which are in defrosting operations return to the heating modes when finishing defrosting, the other outdoor unit modules are started to defrost, and the above defrosting operations are performed successively till all outdoor unit modules finish all defrosting operations. Therefore, heating is always performed by outdoor units all the time during defrosting, indoor units are kept in heating states, and a good, comfortable and sustainable indoor heating environment can be provided for users.
Description
technical field [0001] The invention relates to the technical field of air conditioning, and more specifically relates to a multi-connected air conditioner with sustainable heating and a defrosting method thereof. Background technique [0002] A multi-connected air conditioner is a circulation system composed of multiple outdoor units connected in parallel and multiple indoor units connected in parallel. While defrosting is a function of the multi-connected air conditioner, this function is activated in the heating mode of the air conditioner. Air conditioners generally turn on the heating mode when the ambient temperature is low. Due to the low ambient temperature, the heat exchanger of the outdoor unit is prone to frosting. At this time, the water vapor in the outside air will condense or freeze into ice cubes on the fins of the external unit, which will greatly reduce the heat exchange capacity of the heat exchanger, resulting in poor heating effect in the system room. ...
Claims
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IPC IPC(8): F25B47/02F25B49/02
Inventor 杨元涛许永锋熊美兵梁泽坤任林行
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD