Cascade Air Conditioning System
An air conditioning system, cascading technology, applied in space heating and ventilation details, heating methods, lighting and heating equipment, etc., can solve problems such as poor performance, difficult control, poor system stability, etc., to reduce control difficulty, Easy-to-control, performance-optimized effects
Active Publication Date: 2020-02-18
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
However, the traditional self-cascading system has two fatal problems of difficult control and poor performance
Among them, the control is difficult because the refrigerant coming out of the condenser is in a two-phase state, and the outlet dryness has a great impact on performance, but it is extremely difficult to adjust the condenser outlet dryness, so the system stability is poor
Method used
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Embodiment Construction
[0021] see in conjunction Figure 1 to Figure 4 As shown, according to an embodiment of the present invention, a cascade air conditioning system is provided for adjusting temperature, including a compressor 1, a flasher 2, and a condensing evaporator 3, and the compressor 1 has a first exhaust Port 11, second exhaust port 12, suction port 13, the flasher 2 has a first flash port 21, a second flash port 22, a third flash port 23, a fourth flash port 24, The condensing evaporator 3 has a first port 31, a second port 32, a third port 33, and a fourth port 34, and a first exhaust port 11 is connected in series with the first flash port 21. In the heat exchanger 41, the second flash port 22 is in pipeline communication with the first port 31, the second exhaust port 12 is in pipeline communication with the fourth flash port 24, and the third flash port The outlet 23 communicates with the inlet pipeline of the first throttling element 51, and the outlet of the first throttling elem...
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The invention provides a cascade air conditioning system. The air conditioning system includes a compressor, the compressor has a first exhaust port, a second exhaust port, and a suction port, and the flasher has a first flash port, a second flash port, a third flash port, a first flash port, and a second flash port. Four flash outlets, the condensing evaporator has the first port, the second port, the third port, and the fourth port, the first heat exchanger is connected in series between the first exhaust port and the first flash port, and the second flash port The outlet is connected with the first outlet pipeline, the second exhaust outlet is connected with the fourth flash outlet pipeline, the third flash outlet is connected with the inlet pipeline of the first throttling element, and the outlet of the first throttling element is connected with the fourth flash outlet pipeline. The pipeline of the second heat exchanger communicates with the pipeline of the third port, the second heat exchanger communicates with the pipeline of the second port through the second throttling element, and the fourth port communicates with the pipeline of the suction port. According to a cascade air conditioning system of the present invention, the gas-phase refrigerant in the compressor is introduced into the flasher, which facilitates the control of the dryness in the flasher and improves the performance of the system.
Description
technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a cascade air conditioning system. Background technique [0002] A variety of cycles with excellent performance and simple structure can be constructed by using the component separation characteristics of the mixed working fluid, including self-cascade cycles and cascade dehumidification cycles. This cycle can run under the working condition of super large temperature difference. Due to the existence of this advantage, it is widely used in the fields of large temperature difference heat pumps, low-temperature refrigeration, freezing and refrigeration, and dual-temperature refrigerators. However, the traditional self-cascading system has two fatal problems of difficult control and poor performance. Among them, the difficulty of control is due to the fact that the refrigerant coming out of the condenser is in a two-phase state, and the outlet dryness has a gr...
Claims
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IPC IPC(8): F25B5/04F25B41/06F25B43/00F25B49/02F24F11/65F24F13/30F25B41/30
CPCF24F11/65F24F13/30F25B5/04F25B43/00F25B49/02F25B2600/2515F25B41/30F25B2400/23
Inventor 刘星如梁祥飞郑波
Owner GREE ELECTRIC APPLIANCES INC