Ventilation system with heat recovery function

Abstract

The invention relates to the field of regenerative heat exchange, and particularly relates to a ventilation system with a heat recovery function. The ventilation system comprises a first-stage exchanger and a second-stage exchanger, the first-stage exchanger comprises an air inlet pipe and an air outlet pipe which are arranged at an interval, and the air inlet pipe and the air outlet pipe abut against each other; the second-stage exchanger comprises a ventilation pipe and an air exchange pipe which are arranged at an interval, the ventilation pipe and the air exchange pipe abut against each other, and the ventilation pipe and the air exchange pipe are arranged in parallel; an air inlet collecting pipe is connected between the air inlet pipe and the ventilation pipe; an air return collecting pipe is connected between the air outlet pipe and the air exchange pipe, and the air inlet collecting pipe and the air return collecting pipe are both made of heat conduction materials; and heat preservation pipes are arranged on the peripheries of the first-stage exchanger and the second-stage exchanger correspondingly, and heat conduction liquid is injected into the heat preservation pipes. According to the ventilation system with the heat recovery function, the heat transfer efficiency of indoor and outdoor air exchange can be improved, and energy loss is reduced.

Description

technical field [0001] This application relates to the field of regenerative heat exchange, in particular to a fresh air system with heat recovery. Background technique [0002] At present, the fresh air system can filter the air entering the room, and keep the indoor air fresh, and at the same time filter out the dust and toxic substances in the air, making the indoor air cleaner. [0003] In the related art, because indoor air conditioning or heating is often turned on to keep people in a relatively comfortable temperature environment, there is a certain temperature difference between indoor air and outdoor air. In this regard, the fresh air system is often equipped with a heat transfer device, so that heat exchange occurs between the air discharged from the room and the air entered from the outside, so that the temperature in the room can be kept at a relatively constant state, reducing energy loss. [0004] In view of the above-mentioned related technologies, the invent...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there is a general heat transfer device. Indoor or outdoor air exchange channels are often set in a straight line through which air can pass through unimpeded in order to facilitate later cleaning and maintenance. The possibility of the exhaust gas staying when passing through the heat transfer device, but it is not conducive to the heat exchange between the indoor air and the outdoor air, so there is still a large energy loss

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