Improved device for efficient energy-saving household central air-conditioning

Abstract

The invention discloses an improved device for an efficient energy-saving household central air-conditioner. The improved device comprises a variable air volume air supply system and an outdoor heat pump unit with an adjustable capability; wherein the variable air volume air supply system is connected to the outdoor heat pump unit through a refrigerant pipeline; the outdoor heat pump unit comprises a refrigeration compressor, an air-cooled type heat exchanger, an air-conditioner coil pipe, a four-way reversing valve, a throttle mechanism, a domestic hot water tank and an electromagnetic valve, the refrigeration compressor is connected to the air-cooled type heat exchanger through the four-way reversing valve, the throttle mechanism is installed between the air-cooled type heat exchanger and the air-conditioner coil pipe in the variable air volume air supply system; and the domestic hot water tank and the electromagnetic valve is connected to the refrigerant pipeline of the refrigeration compressor and the air-cooled type heat exchanger. In the improved device, the domestic hot water tank is additionally arranged in the outdoor heat pump unit, exhaust from the refrigeration compressor flows into a refrigerant coil pipe in the domestic hot water tank and carries out heating for the domestic water, so that the domestic hot water can be prepared, and the improved device has the advantages of high efficiency and energy saving.

Description

technical field [0001] The invention relates to a central air conditioner, in particular to an improved device for a household central air conditioner. Background technique [0002] Residential central air conditioners can usually be divided into three types, namely, cold water type household central air conditioners, refrigerant multi-connection (one drag multiple) type household central air conditioners and air duct type household central air conditioners. Duct-type household central air conditioners have the advantages of simple system, easy to realize indoor fresh air supply and winter air humidification, low cost and easy maintenance. The variable air volume duct type household central air conditioner is equipped with a variable air volume terminal in each air-conditioned room to adjust the air supply volume entering the respective air-conditioned room, thereby realizing independent control of the temperature of each air-conditioned room; The control of the static pres...

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Problems solved by technology

In the invention patent "a household central air conditioner with variable air volume with a static air pressure control unit" (patent number ZL201020199253.3) and "a household central air conditioner with a variable air volume terminal" (patent number ZL200620044522.2) The variable air volume household central air conditioners for which the rights are applied for do not recover the heat exhausted by the condenser, and fail to provide domestic hot water at the same time, which restricts the energy saving and practicability of the device

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