Defrosting system, defrosting method and air conditioner
An air conditioner and controller technology, applied in heating and ventilation control systems, heating and ventilation safety systems, and control inputs involving air characteristics, etc., can solve the problem of reduced heat exchange efficiency, no heating, and unit heating capacity Drop and other problems to avoid frequent start and stop
Inactive Publication Date: 2019-03-19
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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Problems solved by technology
[0002] At present, when the heat pump unit is heating, when the surface temperature of the evaporator is lower than zero, frost will appear on the surface of the heat exchanger. If the frost on the surface of the heat exchanger is not removed in time, it will block the air passage and reduce the heat transfer area. , the flow resistance of the air increases significantly, the heat exchange efficiency decreases, and the overall performance of the heat pump unit decreases, so regular defrosting is required
[0003] In the existing air conditioner defrosting technology, when the air conditioner unit reaches the defrosting condition, the four-way valve changes direction, and the high-temperature hot water on the exhaust side of the compressor directly enters the fin side for defrosting. After the defrosting is completed, the four-way valve The reversing unit enters the heating mode; the unit is in a non-heating state during the defrosting period, and the heating capacity of the unit is also reduced due to frequent defrosting
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[0030] The following description and drawings fully illustrate specific embodiments of the present invention to enable those skilled in the art to practice them. Other implementations may include structural, logical, electrical, process, and other changes. The examples only represent possible changes. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The scope of the embodiments of the present invention includes the entire scope of the claims, and all available equivalents of the claims. In this document, each embodiment may be individually or collectively denoted by the term "invention", this is only for convenience, and if more than one invention is actually disclosed, it is not intended to automatically limit the scope of the application to any A single invention or inventive concept. ...
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The invention belongs to the technical field of air conditioner defrosting, discloses a defrosting system, and further discloses a defrosting method and an air conditioner. The defrosting system comprises an auxiliary waterway and a controller; the auxiliary waterway is arranged on the condenser side; and the controller comprises a first unit for obtaining the environment temperature, a second unit for obtaining the temperature of a coil pipe of the auxiliary waterway, and a third unit which is used for controlling the auxiliary waterway to communicate with high-temperature hot water of a mainwaterway according to the environment temperature and the temperature of the coil pipe of the auxiliary waterway. By adopting the defrosting system, under the condition that a heat pump unit is not stopped, the high-temperature hot water of the main waterway is introduced into the auxiliary waterway on the condenser side to complete defrosting operation of a condenser, continuous operation of theheat pump unit is guaranteed, and frequent starting and stopping of the unit in the defrosting process are avoided.
Description
Technical field [0001] The present invention relates to the technical field of air conditioner defrosting, in particular to a defrosting system, a defrosting method and an air conditioner. Background technique [0002] At present, when the heat pump unit is heating, when the surface temperature of the evaporator is below zero, frosting will appear on the surface of the heat exchanger. If the frost on the surface of the heat exchanger is not removed in time, it will block the air passage and reduce the heat transfer area. , The air flow resistance is obviously increased, the heat exchange efficiency is reduced, and the overall performance of the heat pump unit is reduced, so regular defrosting is required. [0003] The existing air conditioner defrosting technology, when the air conditioner unit reaches the defrosting condition, the four-way valve changes direction, and the high-temperature hot water on the exhaust side of the compressor directly enters the fin side for defrosting. ...
Claims
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Login to View More IPC IPC(8): F24F11/41F24F11/64
CPCF24F11/41F24F11/64F24F2110/10F24F2140/20F24F11/84
Inventor 马东孙辉赵雷
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD