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Refrigerating system for heat pump air conditioner and its realizing method

A technology for refrigeration systems and air conditioners, applied in air conditioning systems, refrigerators, heating methods, etc., can solve problems such as inability to achieve both, inability to achieve refrigeration and heating, and reduce pressure loss and increase heat transfer coefficient. , the effect of increasing the refrigerant flow rate

Active Publication Date: 2009-07-22
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, for the same heat exchanger, it is impossible to achieve the best shunt design for cooling and heating, and it is impossible to achieve both

Method used

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  • Refrigerating system for heat pump air conditioner and its realizing method
  • Refrigerating system for heat pump air conditioner and its realizing method
  • Refrigerating system for heat pump air conditioner and its realizing method

Examples

Experimental program
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Effect test

Embodiment 1

[0035]Figure 2 is a schematic diagram of Embodiment 1 of the present invention, and is specifically described by taking the outdoor heat exchanger as an example. In this embodiment, the outdoor radiator 3 is composed of two radiators 3a, 3b Composed, between the radiators 3a, 3b, a solenoid valve 7 is used to form a series pipeline. Among the two radiators 3a and 3b, the radiator 3a is the first sub-heat exchanger connected to the four-way reversing valve, so it is directly connected to the four-way reversing valve, while the other end is connected to the four-way reversing valve through a one-way reversing valve. The one-way valve 8 of the one-way valve is connected to the throttling device 5; the diffuser 3b is connected to the four-way reversing valve 2 through a one-way valve leading to the four-way reversing valve, because in this embodiment, the outdoor radiator 3 is composed of two radiators 3a and 3b, so the radiator 3b is the last sub-heat exchanger, therefore, the su...

Embodiment 2

[0037] Fig. 3 is a schematic diagram of Embodiment 2 of the present invention, except that the same improvement is made on the outdoor side as in Embodiment 1, and the same improvement is also made on the indoor heat exchanger. In the present embodiment, the indoor side radiator 6 is also made up of two radiators 6a, 6b, and a solenoid valve 7a is used between the radiators 6a, 6b to form a series pipeline. In the two radiators 6a, 6b, The diffuser 6a is the first sub-heat exchanger connected to the four-way reversing valve, so it is directly connected to the four-way reversing valve, while the other end is connected through a one-way valve 8a leading to the four-way reversing valve Throttling device 5; radiator 6b then connects this four-way reversing valve 2 through a check valve leading to four-way reversing valve, because in the present embodiment, this indoor radiator 6 is made of two radiators 6a, 6b, so the diffuser 6b is the last sub-heat exchanger, therefore, the sub-...

Embodiment 3

[0039] Fig. 4 shows the schematic diagram of embodiment three of the present invention, and its difference with embodiment two is that the outdoor side radiator 3 is made up of three diffuser radiators 3a, 3b and 3c, between diffuser radiators 3a, 3b The solenoid valve 7 and the one-way valve form a series-parallel pipeline and then connect in series with the 3c diffuser to form another parallel pipeline connected between the four-way reversing valve and the throttling device.

[0040] The above-mentioned embodiments are only a small part. It can be seen from the above-mentioned embodiments that the present invention mainly provides a method that can increase the refrigerant flow rate in the condensation process to increase the heat transfer coefficient, and in the heating process Among them, the implementation method of the refrigeration system of the heat pump air conditioner that reduces the flow rate of the refrigerant and reduces the pressure loss. The method is to set th...

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Abstract

A refrigeration system for a heat pump air conditioner, comprising a compressor, a four-way reversing valve, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger, characterized in that: at least one of the indoor and outdoor heat exchangers It is composed of at least two sub-heat exchangers, and each sub-heat exchanger forms parallel and series pipelines connected between the four-way reversing valve and the throttling device through valves. According to the different requirements of heating and cooling, the sub-heat exchangers form corresponding parallel and series pipelines through valves, so that during the condensation process, the sub-heat exchangers are connected in series to increase the flow rate of the refrigerant to increase the heat transfer coefficient. In the heating process, the sub-heat exchangers are connected in parallel to reduce the flow rate of the refrigerant and reduce the pressure loss.

Description

technical field [0001] The invention relates to an air conditioner, in particular to a refrigeration system of a heat pump air conditioner and a realization method thereof. Background technique [0002] A typical heat pump air-conditioning refrigeration system is composed of five parts: compressor, four-way reversing valve, outdoor heat exchanger, throttling device, and indoor heat exchanger. Electronic expansion valves are often used as throttling devices in inverter air conditioners. In order to prevent impurities in the system from blocking the throttling device, a filter is usually installed. Figure 1 is a diagram of a typical heat pump air-conditioning and refrigeration system, in which the air inlet and exhaust port of the compressor are respectively connected to the outdoor heat exchanger and the indoor heat exchange through a four-way valve, and the connection between the outdoor heat exchanger and the indoor heat exchange A throttling device and a filter are connec...

Claims

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Application Information

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IPC IPC(8): F24F13/30F24F3/06F25B41/04
Inventor 梁晓东曲艳
Owner HAIER GRP CORP
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