Air purification device and vehicle

Abstract

The present invention discloses an air purification device and a vehicle, which includes a filtration component for filtering air, a heating device for heating air, a pressure detection device for detecting the air pressure value during the filtration process, and a controller for adjusting the power of the heating device according to the pressure value. By detecting the pressure condition through the pressure detection device, the present invention judges that dust on the filter material of the filtration component combines with moisture in the air to form mud and slightly frozen mud, or low-temperature icing, frosting, etc. occur. Then, the heating device is turned on by the controller to heat the air, achieving effects such as snow melting, defrosting, and drying, and avoiding problems such as blockage of the filtration component and reduction of the filtration effect.

Description

Technical Field

[0001] The present invention relates to the field of air purification, and particularly to an air purification device and a vehicle. Background Art

[0002] The haze removal device for buses is to install a large purifier on the top of the bus. In low-temperature and heavy-haze weather, dust on the filter material is likely to combine with moisture in the air to form mud, slightly frozen mud, or low-temperature icing and frosting, etc., thus blocking the filter, making it unable to filter or reducing the filtering effect. Summary of the Invention

[0003] In order to solve the technical problem that the filter is easily blocked in a low-temperature environment in the above-mentioned prior art, the present invention provides an air purification device and a vehicle.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides an air purification device, which includes a filtering component for filtering air, a heating device for heating air, a pressure detection device for detecting the air pressure value during the filtering process, and a controller for adjusting the power of the heating device according to the pressure value.

[0006] The present invention further includes a housing for installing the filtering component and the heating device. One end of the housing is provided with an air inlet, and the other end is provided with an air outlet fan. The filtering component and the heating device are installed on the air flow path formed between the air inlet and the air outlet fan.

[0007] The filtering component includes a first filter and a second filter which are sequentially arranged at intervals along the air flow direction.

[0008] The present invention further includes a temperature sensor for detecting the ambient temperature around the filtering component. When the temperature detected by the temperature sensor is lower than the preset temperature value and the air pressure value reaches the first preset value, the controller turns on the heating device.

[0009] The present invention further includes a humidity sensor for detecting the ambient humidity around the filtering component. When the humidity detected by the humidity sensor is lower than the preset humidity value, the temperature is lower than the preset temperature value, and the air pressure value reaches the first preset value, the controller turns on the heating device.

[0010] When the current pressure value detected by the pressure detection device is lower than or equal to the safety pressure value, the controller turns off the heating device. When the current pressure value detected by the pressure detection device is a preset multiple of the safety pressure value, the power of the heating device is reduced through the controller.

[0011] The heating device includes: a first electric heater arranged on the air inlet side of the first filter.

[0012] The heater device further includes a second electric heater that is activated when the first electric heating fails, and the second electric heater is disposed between the first filter and the second filter.

[0013] Preferably, the pressure detection device is a differential pressure gauge.

[0014] The present invention also provides a vehicle, on which the above air purification device is installed.

[0015] Compared with the prior art, the present invention detects the pressure condition through the pressure detection device, determines that dust on the filter material of the filter assembly combines with moisture in the air to form mud and slightly frozen mud, or there are situations such as low-temperature icing and frosting, and then the controller turns on the heating device to heat the air, which can achieve effects such as snow melting, defrosting, and drying, and avoid problems such as clogging of the filter assembly and reduction of the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of the present invention;

[0018] Figure 2 is a schematic structure diagram of an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the following further details the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The principle and structure of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0021] As Figure 1 、 Figure 2As shown in the figure, the present invention provides an air purification device, which includes: a housing 3, a filtering component 1, a heating device 2, a pressure detection device and a controller. The housing 3 is box-shaped, with grid-shaped air inlets provided on the end face and side wall at one end, and an air outlet fan 31 provided at the other end. The air outlet fan 31 is specifically an axial flow fan, so as to form an air flow channel in the housing 3. The filtering component 1 and the heating device 2 are installed on the air flow channel in the housing. The controller is specifically a control main board, which can adjust the power of the heating device 2 according to the pressure value signal detected by the pressure detection device. When the pressure detected by the pressure detection device is too high, it indicates that the dust on the filter material of the filtering component combines with the moisture in the air to form mud and slightly frozen mud, or there are situations such as low-temperature icing and frosting. The heating device is turned on by the controller to heat the air, which can achieve effects such as snow melting, defrosting, and drying, and avoid problems such as blockage of the filtering component and reduction of the filtering effect.

[0022] In the present invention, the filtering component 1 includes a first filter 11 and a second filter 12 which are sequentially arranged at intervals along the air flow direction. The volume of the second filter is larger than that of the first filter, and the filtering effect is better. The filtering effect can be improved through double-layer filtering.

[0023] The present invention further includes a temperature sensor for detecting the ambient temperature around the filtering component 1 and a humidity sensor for detecting the ambient humidity around the filtering component. When the humidity detected by the humidity sensor is lower than the preset humidity value, the temperature is lower than the preset temperature value, and the air pressure value reaches the first preset value, the controller turns on the heating device to the preset power. By detecting the low-temperature environment and the humid environment, it is further determined that there are situations such as condensation, icing, and frosting, which improves the accuracy of judgment, ensures the use efficiency of the heating device, and avoids the heating device from starting in other situations.

[0024] In a specific embodiment, when the current pressure value detected by the pressure detection device is lower than or equal to the safety pressure value, the controller turns off the heating device; when the current pressure value detected by the pressure detection device is a preset multiple of the safety pressure value, it indicates that the blockage situation has been greatly improved, and the controller reduces the power of the heating device. This preset multiple can be 2.5 times, which improves the use efficiency of the heating device and reduces energy consumption.

[0025] In the present invention, the heating device 2 includes a first electric heater 21 provided on the air inlet side of the first filter 11 and a second electric heater 22 that is started when the first electric heater 21 fails. The second electric heater 22 is provided between the first filter 11 and the second filter 12. Specific faults include that the first electric heater has a short circuit situation and the pressure value does not change within a preset period of time after the first electric heater is turned on, indicating that the first electric heater fails and cannot work normally. By setting double-layer electric heaters, one for normal use and one for standby, it is ensured that the heating device can be normally started in most cases.

[0026] In a specific embodiment, the pressure detection device is a differential pressure gauge, which has two sensing ends. One sensing end is located at the position between the first electric heater and the air inlet of the housing, and the other sensing end is located at the position between the fan and the second filter, ensuring that the differential pressure gauge can detect the differential pressure change inside the housing.

[0027] The present invention also provides a vehicle, on which the above-mentioned air purification device is installed. The vehicle is specifically a bus, and the above-mentioned air purification device is installed on the top of the bus, which can reduce the impact of haze on the air environment inside the vehicle and improve the air quality inside the vehicle in haze weather.

[0028] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air purification device, comprising a filtering component (1) for filtering air, characterized in that, It further includes a heating device (2) for heating air, a pressure detection device for detecting the air pressure value during the filtration process, and a controller for adjusting the power of the heating device according to the pressure value; It further includes a housing (3) for installing the filtration component (1) and the heating device (2). One end of the housing (3) is provided with an air inlet, and the other end is provided with an air outlet fan (31). The filtration component (1) and the heating device (2) are installed on the air flow path formed between the air inlet and the air outlet fan (31); The filtration component (1) includes a first filter (11) and a second filter (12) which are sequentially arranged at intervals along the air flow direction; The heating device (2) includes: a first electric heater (21) arranged on the air inlet side of the first filter (11); The heating device further includes: a second electric heater (22) that is started when the first electric heater (21) fails. The second electric heater (22) is arranged between the first filter (11) and the second filter (12).

2. The air purification device according to claim 1, wherein It further includes a temperature sensor for detecting the ambient temperature around the filtration component (1). When the temperature detected by the temperature sensor is lower than the preset temperature value and the air pressure value reaches the first preset value, the controller turns on the heating device (2).

3. The air purification device according to claim 2, wherein It further includes a humidity sensor for detecting the ambient humidity around the filtration component (1). When the humidity detected by the humidity sensor is lower than the preset humidity value, the temperature is lower than the preset temperature value, and the air pressure value reaches the first preset value, the controller turns on the heating device.

4. The air purification device according to claim 2, wherein When the current pressure value detected by the pressure detection device is lower than or equal to the safety pressure value, the controller turns off the heating device.

5. The air purification device according to claim 2, characterized in that, When the current pressure value detected by the pressure detection device is a preset multiple of the safety pressure value, the power of the heating device is reduced through the controller.

6. The air purification device according to claim 1, characterized in that The pressure detection device is a differential pressure gauge.

7. A vehicle, characterized in that, The air purification device as described in any one of claims 1 to 6 is installed on the vehicle.

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