Novel air source heat pump air conditioner
An air-source heat pump and air-conditioning technology, applied in air-conditioning systems, space heating and ventilation, space heating and ventilation details, etc., can solve problems such as high cost, reduced work efficiency, and the application of large-capacity air-conditioning units, etc., to achieve The effect of low cost
Active Publication Date: 2012-09-26
王全龄
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Problems solved by technology
However, the air source heat pump air conditioner using the above-mentioned surface-cooled air heat exchanger has the problems of low heating efficiency and high energy consumption due to the poor heat dissipation effect of the surface-cooled air heat exchanger during cooling operation in summer; Sometimes, because the surface of the surface-cooled air heat exchanger is prone to frost, frequent defrosting is required, so there is a problem that the defrosting operation consumes a lot of heat energy and causes waste of heat energy
In addition, the connection distance between the surface-cooled air heat exchanger of the current air source heat pump air conditioner and the refrigeration compressor should not be too far, otherwise the discharge resistance of the compressor will increase and the work efficiency will decrease. Therefore, the air source heat pump air conditioner of the prior art All adopt the structure that the surface-cooled heat exchanger, the refrigeration compressor and refrigeration accessories are assembled together in a shell, and the whole is installed outdoors. Although the refrigerant pipes and accessories are insulated, energy dissipation is inevitable. It also reduces the efficiency of the air conditioner
In addition, due to the structure of the surface-cooled heat exchanger and the capacity limitation of the four-way reversing valve of the current air source heat pump air conditioner, the air source heat pump air conditioner in the prior art cannot be made into a large-scale air-conditioning unit with large capacity and applied to large buildings. In addition, the relative cost of the current air-source heat pump air conditioner with surface cooling heat exchanger is relatively high, so it is difficult to popularize and use it as an air-conditioning system for large buildings
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[0012] The specific embodiment of the present invention will be described with reference to the accompanying drawings.
[0013] as attached figure 1 , the new air source heat pump air conditioner includes a heat pump unit and a reversing valve group 2 composed of a refrigerant pipeline sequentially connected to a refrigeration compressor 1, a second heat exchanger 5, an expansion valve 4, and a first heat exchanger 3. The reversing valve group 2 has No. 1 valve 21, No. 5 valve 25, No. 6 valve 26, No. 2 valve 22 connected in series and No. 3 valve 23, No. 7 valve 27, No. 8 valve 28, No. 4 valve connected in series to form a circuit. No. valve 24, between No. 1 valve 21 and No. 2 valve 22 of reversing valve group 2, between No. 3 valve 23 and No. 4 valve 24, between No. 5 valve 25 and No. 6 valve 26, and No. 7 valve 27 Between No. 8 valve 28, No. 4 valve 24 and No. 8 valve 28, No. 2 valve 22 and No. 6 valve 26, No. 1 valve 21 and No. 5 valve 25, No. 3 valve 23 and No. 7 Valve ...
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The invention relates to a novel air source heat pump air conditioner which comprises a heat pump unit consisting of a refrigeration compressor, a second heat exchanger, an expansion valve and a first heat exchanger, and a reversing valve group, wherein, the reversing valve group consists of eight valves which are connected, and the reversing valve group comprises eight connecting pipes for respectively connecting with a spray liquid type air heat exchange device, an output loop of the air conditioner, the first heat exchanger of the heat pump unit and the second heat exchanger of the heat pump unit. Compared with the existing air source heat pump air conditioner, the novel air source heat pump air conditioner is characterized by high performance-price ratio and high energy efficiency ratio and can be applicable to being manufactured into a large-scale air conditioning unit for being applied in a large-scale building.
Description
technical field [0001] The invention relates to a novel air source heat pump air conditioner. Background technique [0002] The current air source heat pump air conditioner uses a fan and a finned coil surface heat exchanger to exchange heat with the air. The heat exchanger acts as an evaporator in winter to absorb heat from the outside air, and acts as a condenser to discharge indoor heat to the air in summer. In the outdoor air, it can realize air-conditioning operation. It has the characteristics of simple structure, convenient installation, and no external heating equipment is required for heating. However, the air source heat pump air conditioner using the above-mentioned surface-cooled air heat exchanger has the problems of low heating efficiency and high energy consumption due to the poor heat dissipation effect of the surface-cooled air heat exchanger during cooling operation in summer; Sometimes, because the surface of the surface-cooled air heat exchanger is prone...
Claims
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IPC IPC(8): F24F3/06F25B13/00F25B41/04F24F13/30
Inventor王全龄
Owner王全龄