CN202024419U - Novel blower - Google Patents

Abstract

The utility model discloses a fresh fan. When the fresh fan is working, the indoor air and the outdoor air are sucked respectively by the indoor air exhaust fan and the outdoor air exhaust fan. The indoor air enters from the indoor air inlet, and the outdoor air enters from the outdoor air inlet. Entering, the indoor and outdoor air exchange heat through the heat exchange plate , initially reduce the temperature difference between indoor and outdoor air, recover the energy of the indoor air that will be discharged outside, and then the indoor and outdoor air enters the heat exchanger for further heat exchange, further reducing the indoor and outdoor air temperature. The temperature difference fully recovers the energy of the indoor air, and the waste of cold and heat energy is significantly reduced through the secondary heat exchange of indoor and outdoor air .

Description

New fan

technical field

The utility model relates to a fresh air machine.

Background technique

Fresh air fans can be used in different buildings such as office buildings, housing, department stores, banks, etc., to achieve continuous replacement of outdoor fresh air with indoor dirty air, so that people who stay indoors for a long time can breathe fresh air, and fresh air fans A filter is installed inside, and the filter can filter out bacteria, particulate matter and harmful substances in the fresh air to ensure that the fresh air introduced into the room is clean. Exchange heat with the introduced outdoor air to realize the recovery of indoor temperature and reduce the waste of cold and heat energy.

Existing fresh air fans suck indoor dirty air and outdoor fresh air separately. Since they only exchange heat in the heat exchanger, the indoor temperature recovery effect is not ideal, that is, the waste of cold and heat energy is large.

Contents of the invention

The purpose of the utility model is to provide a fresh fan which not only uses a heat exchanger for heat exchange but also uses a heat exchange plate for heat exchange.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a fresh fan, including a shell with an inner cavity, an indoor air inlet and an outdoor air outlet that are set on the shell and communicate with the inner cavity , an outdoor air inlet and an indoor air outlet, an indoor air exhaust fan arranged in the inner cavity capable of sucking air into the indoor air inlet and sending air out of the outdoor air outlet, arranged in the inner cavity capable of an indoor air filter for filtering air entering through the indoor air inlet, an outdoor air blower disposed in the inner cavity capable of sucking air into the outdoor air inlet and sending air out of the indoor air outlet , an outdoor air filter arranged in the inner cavity capable of filtering the air entering from the outdoor air inlet, and an outdoor air filter arranged in the inner cavity capable of filtering the air filtered by the indoor air filter and the air filtered by the outdoor air inlet A heat exchanger for exchanging heat with the air filtered by the outdoor air filter, the outlet of the heat exchanger for outputting the air filtered by the indoor air filter communicates with the outdoor air outlet, and the heat exchanger The outlet for outputting the air filtered by the outdoor air filter communicates with the indoor air outlet, and the inner cavity is provided with a device capable of controlling the air entering from the indoor air inlet and the outdoor air inlet. The incoming air exchanges heat with the heat exchange plates.

Preferably, the indoor air inlet and the outdoor air inlet are arranged close to each other and are respectively located on two sides of the heat exchange plate.

Further preferably, the indoor air inlet is connected to the indoor air filter, the outdoor air inlet is connected to the outdoor air filter, the filter outlet of the indoor air filter, the filter of the outdoor air filter The outlets are respectively located on both sides of the heat exchange plate and arranged close to the heat exchange plate.

Still further preferably, the heat exchange plate is a corrugated metal plate.

Still further preferably, the indoor air filter and the outdoor air filter both include a cylindrical hollow filter body, one end of the filter body is closed and the other end is open, and the open end of the filter body is connected to the The inlets are communicated with each other, and the filter outlet is provided on the peripheral wall surface of the filter body.

Still further preferably, in the housing, the outdoor air inlet, the outdoor air filter, the heat exchanger, and the outdoor air blower are arranged sequentially from upstream to downstream in the direction of air flow. , the indoor air outlet.

Still further preferably, in the housing, the indoor air inlet, the indoor air filter, the indoor air exhaust fan, and the heat exchanger are arranged sequentially from upstream to downstream in the direction of air flow. , the outdoor air outlet.

Preferably, both the indoor air exhaust fan and the outdoor air exhaust fan are centrifugal fans.

Due to the application of the above-mentioned technical scheme, the utility model has the following advantages compared with the prior art: when the fresh air blower is working, the indoor air and the outdoor air are respectively sucked by the indoor air exhaust fan and the outdoor air exhaust fan, and the indoor air is drawn from the indoor air. The entrance enters, the outdoor air enters from the outdoor air inlet, and the indoor and outdoor air exchanges heat through the heat exchange plate, initially reducing the temperature difference between the indoor and outdoor air, recovering the energy of the indoor air that will be discharged outside, and then the indoor and outdoor air enters the heat exchanger again. Further heat exchange, further reduce the temperature difference between indoor and outdoor air, fully recover the energy of indoor air, and significantly reduce the waste of cold and heat energy through the secondary heat exchange of indoor and outdoor air.

Description of drawings

Accompanying drawing 1 is the internal structure schematic diagram of the present utility model.

Detailed ways

The structure of the utility model will be further set forth below in conjunction with the accompanying drawings.

Referring to Fig. 1, a fresh air blower includes a housing 1 with an inner chamber 2, an indoor air inlet 3 provided on the housing 1 and communicated with the inner chamber 2, an outdoor air outlet 7, an outdoor air inlet 8 and The indoor air outlet, the indoor air blower 5, the indoor air filter 4, the outdoor air blower 10, the outdoor air filter 9 and the heat exchanger 6 that are all arranged in the inner cavity 2, the indoor air blower 5 can suck air Enter the indoor air inlet 3, and send air out of the outdoor air outlet 7, similarly, the outdoor air blower 10 can suck air into the outdoor air inlet 8, and send the air out of the indoor air outlet, in order to ensure sufficient suction pressure , indoor air blower 5, outdoor air blower 10 all adopt centrifugal fan, and indoor air filter 4 can filter the air entering from indoor air inlet 3, to remove harmful substances such as germs and dust in the air, the same, The outdoor air filter 9 can filter the air entering from the outdoor air inlet 8 to ensure that the air to be introduced into the room is clean, and the heat exchanger 6 can filter the air filtered by the indoor air filter 4 and the air filtered by the outdoor air filter 9. The air is heat-exchanged, and after the indoor and outdoor air is filtered and heat-exchanged, it is output from the outdoor air outlet 7 and the indoor air outlet. Specifically, the heat exchanger 6 is used to output the outlet 13 of the air filtered by the indoor air filter 4 It communicates with the outdoor air outlet 7, and the outlet 15 for outputting air filtered by the outdoor air filter 9 on the heat exchanger 6 communicates with the indoor air outlet. A heat exchange plate 16 is arranged in the inner cavity 2, and the heat exchange plate 16 is capable of exchanging heat between the air entering from the indoor air inlet 3 and the air entering from the outdoor air inlet 8 . In this way, when the fresh air blower is working, the indoor air and the outdoor air are respectively sucked by the indoor air exhaust fan 5 and the outdoor air exhaust fan 10. The indoor air enters from the inlet 3, the outdoor air enters from the inlet 8, and the indoor and outdoor air passes through the heat exchange plate. 16 for heat exchange, initially reducing the temperature difference between indoor and outdoor air, recovering the energy of the indoor air that will be discharged outside, and then the indoor and outdoor air enters the heat exchanger 6 for further heat exchange, further reducing the temperature difference between indoor and outdoor air, and fully recovering the indoor air There are usually two situations for recovering the energy of the indoor air here. For example, in summer, when the indoor air conditioner is turned on and the outdoor temperature is very high, the temperature of the outdoor air is fully reduced through the heat exchange plate 16 and the heat exchanger 6, so that While introducing outdoor fresh air, it can reduce the waste of cold energy. On the contrary, in winter, when the indoor heating is turned on, and the outdoor temperature is very low, the temperature of the outdoor air is fully raised through the heat exchange plate 16 and the heat exchanger 6, so that the introduction The waste of heat energy can be reduced while the outdoor fresh air is used. The secondary heat exchange between the heat exchange plate 16 and the heat exchanger 6 fully reduces the temperature difference between the indoor air that will be discharged outside and the outdoor air that will be introduced into the room. Significantly reduces the waste of cold and heat energy.

In order to enable the heat exchange plate 16 to work effectively, the indoor air inlet 3 and the outdoor air inlet 8 are arranged close to each other, and are respectively located on both sides of the heat exchange plate 16. Specifically, the indoor air inlet 3 is connected to the indoor air filter 4, The air that enters through the inlet 3 can be effectively filtered by the filter 4, and then enters the empty space of the inner cavity 2. Similarly, the outdoor air inlet 8 is connected with an outdoor air filter 9, so that the air that enters through the inlet 8 can pass through After the filter 9 is effectively filtered, it enters the empty space of the inner cavity 2. The filter outlet of the indoor air filter 4 and the filter outlet of the outdoor air filter 9 are respectively located on both sides of the heat exchange plate 16, and are close to the heat exchange plate. The plate 16 is arranged so that the filtered indoor and outdoor air can exchange heat smoothly on both sides of the heat exchange plate 16. The heat exchange plate 16 can be a metal plate. In order to improve the heat exchange efficiency, the heat exchange plate 16 is corrugated.

In Fig. 1, the indoor air filter 4 and the outdoor air filter 9 both include a cylindrical hollow filter body, one end of the filter body is closed, the other end is open, and the open end of the filter body communicates with the inlet 3 or 8 , The air that enters the inner cavity 2 from the inlet 3 or 8 is directly sent to the inside of the filter body for filtration. The peripheral wall of the filter body has a filter outlet, and the filtered air is released into the inner cavity 2 from the filter outlet.

In the housing 1, the passages for introducing outdoor air are arranged sequentially from upstream to downstream according to the direction of air flow as outdoor air inlet 8, outdoor air filter 9, heat exchanger 6, outdoor air exhaust fan 10, indoor air Outlet, the indoor air outlet is not shown in Figure 1, only the channel 11 leading to the indoor air outlet is shown; similarly, for the passage of discharging indoor air, the indoor air is arranged sequentially from upstream to downstream according to the direction of air flow. The inlet 3, the indoor air filter 4, the indoor air exhaust fan 5, the heat exchanger 6, the outdoor air outlet 7, the outdoor air filter 9, and the indoor air filter 4 are all close to the heat exchange plate 16, and are located on the heat exchange plate 16 respectively. On both sides of the fresh fan, when the fresh air is exchanging air, the outdoor air introduction passage and the indoor air discharge passage are not connected to each other, and secondary heat exchange can be performed through the heat exchange plate 16 and the heat exchanger 6, the heat exchange is sufficient, and the cold and heat energy is reduced. waste.

Claims (8)

1. A fresh fan, comprising a housing with an inner cavity, an indoor air inlet, an outdoor air outlet, an outdoor air inlet and an indoor air outlet that are provided on the housing and communicate with the inner cavity, and are arranged on the An indoor air blower that can suck air into the indoor air inlet and send air out of the outdoor air outlet in the inner cavity, and is installed in the inner cavity to filter the air entering from the indoor air inlet. an indoor air filter, an outdoor air blower arranged in the inner cavity capable of sucking air into the outdoor air inlet and sending air out of the indoor air outlet, an outdoor air blower arranged in the inner cavity capable of an outdoor air filter for filtering the air entering the outdoor air inlet, and a heat exchanger installed in the inner cavity capable of exchanging heat between the air filtered by the indoor air filter and the air filtered by the outdoor air filter An exchanger, the outlet of the heat exchanger for outputting the air filtered by the indoor air filter communicates with the outlet of the outdoor air, and the outlet of the heat exchanger for outputting the air filtered by the outdoor air filter The outlet of the air is connected with the indoor air outlet, and it is characterized in that: the inner cavity is provided with a heat exchanger capable of exchanging heat between the air entering from the indoor air inlet and the air entering from the outdoor air inlet. swap board. 2. The fresh air machine according to claim 1, characterized in that: the indoor air inlet and the outdoor air inlet are arranged close to each other, and are respectively located on both sides of the heat exchange plate. 3. The fresh air blower according to claim 2, wherein the indoor air inlet is connected to the indoor air filter, the outdoor air inlet is connected to the outdoor air filter, and the indoor air filter The filter outlet of the outdoor air filter and the filter outlet of the outdoor air filter are respectively located on both sides of the heat exchange plate and are arranged close to the heat exchange plate. 4. The fresh air blower according to claim 3, characterized in that: the heat exchange plate is a corrugated metal plate. 5. The fresh air blower according to claim 3, characterized in that: the indoor air filter and the outdoor air filter both include a cylindrical hollow filter body, one end of the filter body is closed, and the other end is open , the open end of the filter body communicates with the inlet, and the filter outlet is provided on the peripheral wall of the filter body. 6. The fresh air blower according to claim 3, characterized in that: in the housing, the outdoor air inlet, the outdoor air filter, the The heat exchanger, the outdoor air blower, and the indoor air outlet. 7. The fresh air blower according to claim 3, characterized in that: in the housing, the indoor air inlet, the indoor air filter, the The indoor air blower, the heat exchanger, and the outdoor air outlet. 8. The fresh air blower according to claim 1, characterized in that: both the indoor air blower and the outdoor air blower are centrifugal fans.

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