Fresh air system suitable for cold regions and working method thereof
A technology for fresh air systems and cold regions, applied in ventilation systems, heating and ventilation control systems, heating and ventilation safety systems, etc. Condensation and dripping, improvement of indoor environment, and avoidance of abnormal operation
Pending Publication Date: 2020-02-04
SUZHOU GLANCETECH PHOTOELECTRIC SCI & TECH CO LTD
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Problems solved by technology
However, when the fresh air fan is used in a cold area, the air inhaled from the suction port can reach -30°C or even lower, which can easily cause the electrical components installed inside the fresh air fan to work abnormally, resulting in the loss of the air exchange function of the fresh air fan; Fresh air fans are mostly installed indoors. When low-temperature air is introduced from the fresh air machine, the surface of the fresh air machine will condense under the action of the temperature difference between the inside and outside, resulting in condensation and dripping, which is not convenient for users to clean; in addition, When the heat recovery core is in operation, it is easy to freeze and block when the temperature difference is large, which not only affects the indoor ventilation effect, but also reduces the user experience
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[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0030] Such as figure 1 — image 3 As shown, the present invention provides a fresh air system suitable for use in cold regions, including:
[0031] The fan casing 1 is formed with an outdoor air inlet 11 for extracting outdoor fresh air, an indoor air supply port 12 for introducing fresh air into the room, an indoor air outlet 13 for leading out turbid air from the room, An outdoor air outlet 14 for discharging dirty air to the outside and an indoor return air outlet 130 for introducing indoor dirty air for internal circulation;
[0032] The fresh air duct, which is arranged in the fan casing 1, is used to deliver the air introduced from the outdoor air inlet 11 and the indoor return air outlet 130 to the indoor air supply outlet 12; and
[0033] Exhaust air duct 18, whic...
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The invention discloses a fresh air system suitable for cold regions. The fresh air system comprises a fan casing, a fresh air duct and an exhaust air duct, wherein an outdoor air inlet, an indoor airsupply port, an indoor air outlet, an outdoor air outlet and an indoor air return port are formed in the outer side wall of the fan casing; the fresh air duct is used for conveying air introduced from the outdoor air inlet and the indoor air return port to the indoor air supply port; and the exhaust air duct is used for conveying the turbid air introduced from the indoor air outlet to the outdoorair outlet. An air guide cavity is formed in the front end of the inlet of the fresh air duct, and a through stop valve and a pre-heater are installed in the air guide cavity. According to the freshair system, the operation of a fresh air fan, an exhaust fan, the pre-heater and the check valve can be intelligently controlled according to the temperature of the outdoor fresh air, the working abnormality caused by the low temperature of the electric device is effectively avoided, the phenomenon of dew condensation and water dripping caused by the temperature difference between the inside and the outside of the fan casing is avoided, and the problem of blockage caused by easy generation of icing in the heat recovery core body is solved.
Description
technical field [0001] The invention relates to the technical field of fresh air systems, in particular to a fresh air system suitable for use in cold regions and a working method thereof. Background technique [0002] The fresh air fan is an effective air purification equipment, which can circulate the indoor air. On the one hand, the indoor dirty air is discharged outside, and on the other hand, the fresh outdoor air is sterilized, disinfected, filtered and other measures, and then sent to the room. Go indoors and let the room have fresh and clean air all the time. However, when the fresh air fan is used in a cold area, the air inhaled from the suction port can reach -30°C or even lower, which can easily cause the electrical components installed inside the fresh air fan to work abnormally, resulting in the loss of the air exchange function of the fresh air fan; Fresh air fans are mostly installed indoors. When low-temperature air is introduced from the fresh air machine, ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24F7/007F24F11/64F24F11/89F24D5/02F24F110/10F24F110/12
CPCF24F7/007F24F11/64F24F11/89F24D5/02F24F2110/10F24F2110/12
Inventor 吴健魏有莉汪翰李彩霞许明富申如松林佳源余辉
Owner SUZHOU GLANCETECH PHOTOELECTRIC SCI & TECH CO LTD