A temperature control system based on a double-cylinder single-reservoir capillary network and an indoor unit in parallel
A capillary network, temperature control system technology, applied in heating and ventilation control systems, heating and ventilation safety systems, refrigerators, etc. Improve the effect of improving and avoiding discomfort
Active Publication Date: 2021-04-02
四川长虹空调有限公司 +1
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Problems solved by technology
[0003] The purpose of the present invention is to provide a temperature control system based on a capillary network of two cylinders and a single liquid reservoir connected in parallel with an indoor unit, which solves the problem of the slow response speed of the current air-conditioning system when heating, combined with the low energy efficiency of traditional floor heating, and when the air-conditioning indoor When the machine is adjusted to the dehumidification mode, the evaporation temperature of the indoor heat exchanger and the coupling heat exchanger of the capillary network heat exchange system will drop below the dew point temperature, which will cause the operating temperature of the capillary network heat exchange system to drop sharply, causing users to feel cold. Uncomfortable feeling, and the problem that the indoor temperature control system in which the capillary network is connected in parallel with the indoor unit of the air conditioner cannot give full play to its advantages
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Embodiment
[0029] The embodiment of the present invention is based on the temperature control system of the parallel connection of the capillary network of the double-cylinder single-reservoir and the indoor unit, including the outdoor unit and the indoor unit. figure 1 , wherein, the outdoor unit includes a double-cylinder compressor 101, a liquid reservoir 102, a four-way valve 103, and an outdoor heat exchanger 104, and the indoor unit includes an indoor heat exchanger 105 and a throttling device 106, and also includes a capillary Network circuit, detection unit, control unit, throttling device 2 107, coupling heat exchanger 108 and back pressure valve 109, the control unit is arranged in the indoor unit, the double-cylinder compressor 101 is connected to the D end of the four-way valve 103, The liquid reservoir 102 is connected to the S end of the four-way valve 103, and the C end of the four-way valve 103 is respectively connected to one end of the throttling device 106 and one end o...
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The invention proposes a temperature control system in which a capillary network based on a double cylinder and a single liquid reservoir is connected in parallel with an indoor unit, belonging to the field of indoor temperature control. The key points of the technical solution of the present invention are: connecting the outdoor unit with the indoor unit and the capillary network circuit respectively, and controlling the outdoor unit and / or the indoor unit and / or the capillary network circuit to work when the air conditioner unit is in different modes, and, When the indoor unit needs to be used to dehumidify the room, the refrigerant flow rate of the corresponding pipeline is reduced by adjusting the back pressure valve, and the temperature of the capillary network circuit is reduced to a specified value. The beneficial effects of the present invention are: in the dehumidification mode of the indoor unit, the temperature of the capillary network circuit can not be lowered too quickly, avoiding the user's discomfort caused by the rapid temperature drop of the capillary network circuit due to untimely adjustment, and the humanization is greatly improved .
Description
technical field [0001] The invention relates to indoor temperature control technology, in particular to the technology of a temperature control system based on a capillary network of double cylinders and single liquid reservoirs connected in parallel with an indoor unit. Background technique [0002] The noise of the traditional air conditioning system and traditional floor heating, the indoor temperature drop caused by the defrosting of the outdoor unit, and the slow response of the heat exchange of the floor heating, etc. From the single-cylinder compression heat exchange pipeline of the same outdoor unit, since the single-cylinder compressor has a certain working volume, it can only output refrigerant at the same pressure state, so even if the indoor temperature control system has an indoor heat exchanger and a The coupling heat exchanger of the capillary network and two independent heat exchangers can only have a uniform evaporation temperature. However, in the actual te...
Claims
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IPC IPC(8): F25B13/00F25B49/02F25B41/20F24F11/67F24F11/65F24F11/58
CPCF24F11/58F24F11/65F24F11/67F25B13/00F25B49/02F25B41/26
Inventor 李越峰张娣袁竹
Owner 四川长虹空调有限公司