Dual-fan combined air conditioning unit with independent cold source

Abstract

The invention discloses a dual-fan combined air conditioning unit with an independent cold source. A cabinet body of the air conditioning unit is provided with an air inlet, an air supply outlet and areturn air inlet; a primary filter, a first refrigerating coil, a first heating coil, a first filter, a first centrifugal fan, a second refrigerating coil, a second heating coil, an auxiliary heatingsource, a humidifier, a second centrifugal fan and a second filter are arranged in the cabinet body; a compressor and a condenser are arranged in an air conditioner outdoor unit; an outlet of the first refrigerating coil and an outlet of the second refrigerating coil are connected with an inlet of the compressor; an outlet of the compressor is connected with an inlet of the condenser, an inlet ofthe first heating coil and an inlet of the second heating coil; an outlet of the condenser is connected with an outlet of the first heating coil and an outlet of the second heating coil, and then divided into two paths; one path is connected with an inlet of the first refrigerating coil through a first throttling device; and the other path is connected with an inlet of the second refrigerating coil through a second throttling device. Through the adoption of the dual-fan combined air conditioning unit, the cooling and dehumidification capabilities are improved, and energy-saving running is realized. The combined air conditioning unit has relatively high adaptability with dual fans.

Description

Technical field [0001] The invention relates to a combined air-conditioning unit, in particular to a dual-fan combined air-conditioning unit with independent cold sources. Background technique [0002] With the improvement of people's living standards, people have higher and higher requirements for living and working environment, especially the demand for fresh air and thermal comfort. At present, for those places that are not easy to set up or use a centralized cold source for a long time, but have high requirements for indoor temperature and humidity, such as high-end villas, small non-detached hotels, and high-end office areas where overtime is normal, most of their air conditioning systems exist The following defects: [0003] ⑴ When split air conditioners or multi-connected air conditioners are used, the air conditioning system cannot provide fresh air. It usually depends on opening doors and windows for natural ventilation or simple mechanical ventilation to obtain fresh air...

AI Technical Summary

Problems solved by technology

[0003] (1) When split air conditioners or multi-connected air conditioners are used, the air conditioning system cannot provide fresh air, and usually rely on opening doors and windows for natural ventilation or simple mechanical ventilation to obtain fresh air. The fresh air directly enters the room without treatment, which will bring outdoor pollutants (such as dust, car exhaust, PM2.5, etc.) A large amount of fresh air and treatment will enter the room, which will aggravate the phenomenon of damp and mold in the room; if an independent fresh air system is installed, an air conditioning system needs to be added, which not only increases the initial investment, but also needs to set up a special fresh air room and reserve air duct layout space

[0004] (2) When fan coil unit + independent fresh air system or all-air system is adopted, a centralized cooling source is usually used, but because the work and rest time of places such as non-detached small hotels and high-end office areas with normal overtime work are inconsistent with other areas of the same air-conditioning system, thus It will cause a serious phenomenon of "big horses and small carts" when using the air conditioning system in these places at night or other non-uniform hours, not only causing the inefficient operation of the air conditioning system, but also the air conditioning usage fee will be significantly higher than usual, which is neither energy-saving nor economical

[0005] The above-mentioned defects of the existing air-conditioning system have affected the normal and efficient operation of places such as high-end villas, non-detached small hotels, and high-end office areas where overtime is normal. Therefore, it is necessary to design a combined air-conditioning system that can overcome the above-mentioned defects. Air conditioning units to meet the special needs of these establishments

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