CN111151133A - Air purifying device - Google Patents
Air purifying device Download PDFInfo
- Publication number
- CN111151133A CN111151133A CN202010267323.2A CN202010267323A CN111151133A CN 111151133 A CN111151133 A CN 111151133A CN 202010267323 A CN202010267323 A CN 202010267323A CN 111151133 A CN111151133 A CN 111151133A
- Authority
- CN
- China
- Prior art keywords
- air
- filter screen
- catalytic
- catalytic filter
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention relates to the technical field of air purification, in particular to an air purification device, which comprises: the shell is provided with an air inlet and an air outlet, the catalytic filter screen is arranged in the shell and positioned at the air inlet, the catalytic filter screen is provided with a catalyst, the catalyst is suitable for reacting with harmful substances in air to be purified to generate an intermediate product, the flushing device is arranged in the shell and internally provided with flushing air flow, the spraying device is communicated with the flushing device and comprises a nozzle, and the nozzle faces the catalytic filter screen and is suitable for spraying the flushing air flow onto the catalytic filter screen. Harmful substance and catalyst that get into by the air intake react, when the intermediate product that harmful substance and catalyst reaction generated is attached to catalysis type filter screen surface, can follow the spout and spray the washing air current to catalysis type filter screen surface, blows off the intermediate product on catalysis type filter screen surface for catalyst in the catalysis type filter screen can show out and continue to react with harmful substance, has improved air purification device and has got rid of the effect of harmful substance.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an air purification device.
Background
The use of formaldehyde is got rid of to present most air purifier is chemical adsorption formula filter screen, load organic amine or inorganic amine on carriers such as active carbon promptly, remove formaldehyde through the chemical reaction of formaldehyde and amine, but this kind removes aldehyde mode short-lived, can not regenerate, when normal indoor formaldehyde concentration is higher (like the house of just finishing), chemical adsorption formula filter screen life is less than a month, but the cycle of indoor formaldehyde release is very long, generally can reach 3-15 years, the filter screen just so need constantly change, the filter screen is changed not only to be costly, and the discarded filter screen can cause environmental pollution.
In order to effectively remove formaldehyde for a long time, a catalytic filter screen for an air purifier is provided in the prior art, namely a normal-temperature catalyst is added into a filter material of the filter screen, formaldehyde generates formate under the action of the catalyst, and then the formate further reacts to generate final products of carbon dioxide and water.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the catalyst in the filter screen of the air purifier in the prior art is deactivated and cannot remove harmful substances, so as to provide an air purifier which can regenerate the catalyst in the filter screen and improve the effect of removing harmful substances.
An air purification device comprising:
the air purifier comprises a shell, wherein an air inlet and an air outlet are formed in the shell, and the air inlet is suitable for allowing air to be purified to enter;
the catalytic filter screen is arranged in the shell and positioned at the air inlet, and is provided with a catalyst which is suitable for reacting with harmful substances in the air to be purified to generate an intermediate product;
the flushing device is arranged in the shell and internally provided with flushing air flow;
injection apparatus, with the washing unit intercommunication, injection apparatus includes the spout, the spout orientation catalysis type filter screen sets up, be suitable for with the washing air current sprays to on the catalysis type filter screen.
The catalytic filter screen is fixedly connected in the shell.
The catalytic filter screen is of an annular structure with a hollow cavity.
The flushing device is arranged in the hollow cavity.
The spraying devices are in multiple rows and multiple columns and are fixedly connected to the outer wall of the washing device at intervals.
Still include the trachea, trachea one end with injection apparatus is connected, the other end with washing unit connects.
The number of the air inlets is at least two, and the air inlets are arranged on the peripheral wall of the shell at intervals.
The number of the air inlets is four, and the air inlets are uniformly distributed on the peripheral wall of the shell along the circumferential direction.
Injection apparatus fixed connection be in on the casing, catalysis type filter screen be suitable for under the effect of external force with relative rotation takes place for the casing, has the orientation the purification state of air intake department, and the orientation the state of washing of spout.
Still include drive arrangement, drive arrangement with catalysis type filter screen is connected, is suitable for the drive catalysis type filter screen is relative the casing rotates.
The driving device includes:
the base is fixedly connected in the shell;
the rotary table is connected to the base, and the catalytic filter screen is fixedly connected to the rotary table;
and the power device is connected with the rotary disc and is suitable for driving the rotary disc to further drive the catalytic filter screen to rotate.
The two air inlets are oppositely arranged on the side wall of the shell.
The spraying device comprises two groups of spraying units which are fixedly connected on the side wall of the shell relatively, and each air inlet and each group of spraying units are arranged adjacent to each other in the circumferential direction of the side wall of the shell.
The spraying units comprise a plurality of rows and a plurality of columns which are fixedly connected to the shell at intervals.
The catalysis type filter screen is the loop configuration, washing unit locates outside the catalysis type filter screen, washing unit pass through the trachea with injection apparatus connects.
The flushing gas flow is a high pressure gas flow.
The flushing device is a compressed air bottle.
And a heating body is arranged outside the spraying device and is suitable for heating the flushing air flow flowing through the spraying device.
Further comprising: the primary filter screen is arranged on the surface of the air inlet, and the catalytic filter screen is close to the air inlet.
The technical scheme of the invention has the following advantages:
1. according to the air purification device provided by the invention, the catalytic filter screen is arranged at the air inlet, and the catalyst is arranged in the filter material of the catalytic filter screen, so that harmful substances in air to be purified entering from the air inlet can react with the catalyst in the catalytic filter screen.
2. According to the air purification device provided by the invention, the catalytic filter screen is fixedly connected in the shell, so that the catalytic filter screen does not shake when the spraying device sprays the washing airflow to the surface of the spraying device, and the washing efficiency is higher.
3. According to the air purification device provided by the invention, the catalytic filter screen is arranged into the annular structure with the hollow cavity, so that one catalytic filter screen can purify the inlet air in all directions, the cost is reduced, and the whole structure is more compact.
4. According to the air purification device provided by the invention, the washing device is arranged in the hollow cavity, and the spraying devices are fixedly connected to the outer wall of the washing device in a plurality of rows and columns, so that one washing device is arranged, the washing of the catalytic filter screen with the annular structure can be met, and the whole structure is simpler and more compact.
5. According to the air purification device provided by the invention, the at least two air inlets are formed in the peripheral wall of the shell, so that the air inlet volume is larger, the quantity of harmful substances removed by the air purification device at one time is larger, the air purification time of a user is greatly shortened, and the user experience is improved.
6. According to the air purification device provided by the invention, the four air inlets are uniformly distributed along the circumferential direction of the circumferential wall of the shell, so that harmful gases in all directions of the circumferential wall of the shell can basically enter the air purification device through the air inlets for purification, and the user experience is improved.
7. According to the air purification device provided by the invention, the injection device is fixedly connected to the shell, when the catalytic filter screen needs to be washed, the catalytic filter screen and the shell rotate relatively under the action of external force, so that the catalytic filter screen is opposite to the nozzle of the injection device, washing air flow can be injected to the surface of the catalytic filter screen from the nozzle of the injection device, dust or intermediate products on the surface of the catalytic filter screen are blown off, a catalyst in the catalytic filter screen can be shown to continuously react with harmful substances, the harmful substances are removed, and the effect of removing the harmful substances by the air purification device is improved.
8. According to the air purification device provided by the invention, the catalytic filter screen is driven to rotate relative to the shell more conveniently by arranging the driving device connected with the catalytic filter screen.
9. According to the air purification device provided by the invention, the driving device is arranged to comprise the base, the rotary disc and the power device, so that the rotary disc can automatically drive the catalytic filter screen to rotate under the driving of the power device, and the structure of the driving device is simpler.
10. According to the air purification device provided by the invention, the two air inlets are oppositely arranged on the side wall of the shell, the two groups of spraying units are oppositely and fixedly connected on the side wall of the shell, and each air inlet and each group of spraying units are adjacently arranged on the circumferential direction of the side wall of the shell, so that the catalytic filter screen can be over against the air inlets when harmful substances are purified, and the driving device can drive the catalytic filter screen to rotate to face the spray nozzle when the catalytic filter screen needs to be washed, and the two states are more convenient to change.
11. According to the air purification device provided by the invention, the catalytic filter screens are arranged into an annular structure with the hollow cavity, so that the catalytic filter screens are arranged along the circumferential direction of the shell, when part of the catalytic filter screens facing to the air inlet needs to be washed after a long time, the driving device drives the part of the catalytic filter screens to be washed towards the nozzle of the injection device, and the originally clean catalytic filter screens facing to the nozzle can continue to face to the air inlet to purify the air, so that the air purification device can purify the air to be purified simultaneously and wash dirty and blocked catalytic filter screens, and the user experience is greatly improved; because the catalysis type filter screen is the loop configuration who is formed with the cavity, through locating the washing unit in the outside of catalysis type filter screen, washing unit passes through the trachea and is connected with injection apparatus for washing unit and injection apparatus's placing and being connected all more conveniently.
12. According to the air purification device provided by the invention, the spraying units are fixedly connected to the outer wall of the washing device in a multi-row and multi-column manner, so that the washing device is arranged, the requirement for washing the catalytic filter screen with the annular structure can be met, and the overall structure is simpler and more compact.
13. According to the air purification device provided by the invention, the flushing air flow is set to be high-pressure air flow, the heating body is arranged outside the injection device, so that the flushing air flow injected out from the nozzle of the injection device is high-temperature and high-pressure air flow, an intermediate product generated by the reaction of harmful substances and the catalyst can rapidly enter the next reaction in a high-temperature and high-pressure environment to finally generate carbon dioxide and water, the accumulation of the intermediate product on the surface of the catalytic filter screen is prevented, the catalyst in the catalytic filter screen can be shown, namely, the catalyst is regenerated and continuously reacts with the harmful substances, and the efficiency of removing the harmful substances is greatly improved.
14. According to the air purification device provided by the invention, the primary filter screen is arranged on the surface of the catalytic filter screen close to the air inlet, so that large particles, hairs and the like in air to be purified can be preliminarily filtered, the purification efficiency is improved, and the service life of the catalytic filter screen is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a first mode of an air cleaning device according to the present invention;
fig. 2 is a schematic structural view of a second embodiment of the air cleaning apparatus according to the present invention.
Description of reference numerals:
1-a shell; 2-air inlet; 3, air outlet; 4-catalytic filter screen; 5-compressed air bottle; 6-high-pressure gun head; 7-a fan; 8-a base; 9-trachea; 10-a drive device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, the present embodiment provides an air purification apparatus of a first mode, including: the device comprises a shell 1, a catalytic type filter screen 4, a flushing device and a spraying device.
The air purifying device comprises a shell 1, an air inlet 2 and an air outlet 3 are arranged on the shell 1, the air inlet 2 is suitable for allowing air to be purified to enter, a catalytic filter screen 4 is arranged in the shell 1 and located at the position of the air inlet 2, a catalyst is arranged in a filter material of the catalytic filter screen 4 and is suitable for reacting with harmful substances in the air to be purified to generate an intermediate product, a flushing device is arranged in the shell 1 and is internally provided with flushing air flow, the jetting device is communicated with the flushing device and comprises a jet opening, and the jet opening is arranged towards the catalytic filter screen 4 and is suitable for jetting the flushing air flow onto the.
Through set up catalysis type filter screen 4 in air intake 2 department, be equipped with the catalyst in the filter material of catalysis type filter screen 4, make the harmful substance in treating the air-purifying that gets into by air intake 2 can react with the catalyst in the catalysis type filter screen 4, through set up washing unit and injection apparatus in casing 1, when the intermediate product or a large amount of dust that harmful substance and catalyst reaction generated are attached to catalysis type filter screen 4 surface, can spray the washing air current to 4 surface injection of catalysis type filter screen from injection apparatus's spout, blow down the dust or the intermediate product on 4 surface of catalysis type filter screen, make the catalyst in the catalysis type filter screen 4 can show out and continue to react with harmful substance, get rid of harmful substance, the effect that air purification device got rid of harmful substance has been improved.
The catalytic screen 4 in this embodiment is fixedly attached within the housing 1. Through with catalysis type filter screen 4 fixed connection in casing 1 for when injection apparatus sprays the washing air current to its surface, catalysis type filter screen 4 can not rock, makes washing efficiency higher. As an alternative embodiment, the catalytic filter 4 may be rotatably provided in the housing 1.
Specifically, the air purification device in this embodiment further includes a base 8, and is fixedly connected in the casing 1, and the base 8 is fixedly connected with the catalytic filter screen 4 and the flushing device. Alternatively, the base 8 may not be separately provided, and the catalytic filter 4 and the flushing device may be directly and fixedly attached to the bottom of the housing 1.
The flushing gas flow in this embodiment is a high pressure gas flow. In order to conveniently provide high pressure air flow, the flushing device in this embodiment is a compressed air bottle 5. As an alternative embodiment, other equipment may be used to provide the high-pressure gas stream. In an alternative embodiment, the flushing gas stream may be an atmospheric gas stream.
The ejector in this embodiment is externally provided with a heating element adapted to heat the flushing air flowing through the ejector. Set up to high-pressure draught through washing the air current, the injection apparatus sets up the heat-generating body outward, make the washing air current that is sprayed out by injection apparatus's spout be high-pressure high-temperature air current, make the intermediate product that harmful substance and catalyst reaction generated, can be at the next reaction of quick entering under the high-temperature high-pressure environment, finally generate carbon dioxide and water, prevented piling up of intermediate product at catalysis type filter screen 4 surface, make inside catalyst can show, catalyst regeneration continues to react with harmful substance promptly, the efficiency of getting rid of harmful substance has been improved greatly.
Specifically, the injection device in this embodiment is a high-pressure gun head 6, and the air purification device further includes an air pipe, one end of the air pipe is connected with the high-pressure gun head 6, and the other end of the air pipe is connected with a compressed air bottle 5. A heating film is arranged on the outer surface of the heating film. As an alternative embodiment, the spraying device may be a nozzle, which opens directly on the outer wall of the compressed air tank 5 without the need for an air pipe. As an alternative embodiment, the heating element may be a heater of another type.
In order to increase the air intake, the number of the air inlets 2 is four in the embodiment, the air inlets are uniformly distributed on the circumferential wall of the casing 1 along the circumferential direction, the air outlet 3 is arranged at the top of the casing 1, and a fan 7 is further arranged on one side of the air outlet 3 close to the inside of the casing 1. Through setting up air intake 2 into four, along the circumference evenly distributed of casing 1's perisporium for the harmful gas of casing 1's perisporium all directions all can purify in getting into air purification device through air intake 2 basically, has improved user experience. As an alternative embodiment, one, two, three or more air inlets 2 can also be provided. As an alternative embodiment, the bottom of the housing 1 may be provided with a bracket, and the outlet 3 may be provided at the bottom of the housing 1, or both the bottom and the top of the housing 1 may be provided with the outlet 3.
The catalytic filter 4 in this embodiment is an annular structure with a hollow cavity. Through setting up catalysis type filter screen 4 to be formed with the annular structure of cavity for a catalysis type filter screen 4 can satisfy the purification to the air inlet in all directions, and the cost is reduced, and makes overall structure compacter. As an alternative embodiment, the catalytic filter 4 may be a sheet, and each catalytic filter 4 is fixedly connected to each air inlet 2.
The washing device in this embodiment is arranged in the hollow cavity, the spraying devices are arranged in three rows and four rows, each row of spraying devices is arranged corresponding to each air inlet 2, and the spraying devices are fixedly connected to the outer wall of the washing device at intervals. Through locating washing unit in the cavity, injection apparatus is three rows four rows ground fixed connection on washing unit's outer wall for set up a compressed air bottle 5, can satisfy the washing to annular structure's catalysis type filter screen 4, make overall structure simpler, compact. As an alternative embodiment, the flushing device may also be arranged outside the hollow chamber. As an alternative embodiment, the number of rows of the ejection devices may be set according to the actual situation. As an alternative embodiment, a plurality of compressed air tanks 5 may be provided.
In order to carry out prefiltering in order to treat big particulate matter, hair etc. in the air-purifying, improve purification efficiency, air purification device in this embodiment still includes the primary filter screen, locates catalysis type filter screen 4 on being close to air intake 2. As an alternative embodiment, the primary filter may not be provided.
The air purification device in this embodiment is air purifier, can be used to get rid of harmful substance such as formaldehyde, particulate matter, bacterium in the room air. As an alternative embodiment, the air purification device may be a fan with a purification function, an air conditioner, or the like.
The catalytic filter screen 4 in this embodiment is a carbon cloth-sandwiched composite filter screen, and is a filter screen loaded with a normal temperature catalyst, and the normal temperature catalyst is some metals or metal oxides, such as platinum Pt, manganese oxides MnOx, cobalt oxides CoOx, and the like, and these metals or metal oxides are loaded on activated carbon, and can perform catalytic oxidation reaction with formaldehyde at room temperature (normal temperature) to generate formate, and further perform catalytic oxidation to carbon dioxide and water. As an alternative embodiment, the catalytic filter 4 may be a separation filter, i.e., a HEPA high efficiency air filter + an activated carbon filter.
Taking the air purifier to remove formaldehyde as an example, after a user uses the air purifier for a period of time (such as three months), the active centers of the metal catalyst on the catalytic filter screen 4 are covered by dust and an intermediate product, namely formate, generated by the reaction of metal and formaldehyde, so that the activity of the catalyst is reduced, even the catalyst is invalid, at this time, the air purifier can be closed, the flushing device and the spraying device are started, the compressed air bottle 5 is opened, the high-pressure gun head 6 with heating performs strong blowing (0.3 MPa-0.4MPa, 55 ℃ -65 ℃) on the catalytic filter screen 4 to remove the formate and the dust covered by the active centers of the catalyst in the catalytic filter screen 4, so that the whole filter screen can be blown, the formaldehyde removal activity of the catalyst is recovered, and then the purifier is started to continuously purify indoor air.
In this embodiment, the penetration time of the filter material in the catalytic filter 4 and the overall machine formaldehyde CADR value of the air purifier are also tested, and the specific results are shown in tables 1 and 2 below:
because the breakthrough time of filter material indicates to set up a vertical reaction tube in catalysis type filter screen 4, there is the formaldehyde device of detection at the reaction tube both ends, add the filter material in the reaction tube, lead to formaldehyde in the reaction tube, detect formaldehyde concentration at the rear end and exceed initial concentration 10%, regard as to pierce through, this process is called the breakthrough time, can know from this, the more of the breakthrough time of filter material, then the better of effect of getting rid of formaldehyde, can know by table 1, washing unit and injection apparatus in this embodiment can play better effect to the regeneration of catalyst in catalysis type filter screen 4.
The CADR value of formaldehyde means the clean air delivery amount, and the larger the value, the better the purification effect, and as can be seen from table 2, the purification effect of the air purifier in this embodiment is better.
Example 2
As shown in fig. 2, the present embodiment provides an air purification apparatus of a second mode, including: a shell 1, a flushing device, a spraying device and a catalytic type filter screen 4.
The air purifier comprises a shell 1, a washing device, a spraying device and a control device, wherein the shell 1 is provided with an air inlet 2 and an air outlet 3, the air inlet 2 is suitable for entering air to be purified; the catalytic filter screen 4 is arranged in the shell 1, the catalytic filter screen 4 is provided with a catalyst, the catalyst is suitable for reacting with harmful substances in the air to be purified to generate an intermediate product, and the catalytic filter screen 4 is suitable for rotating relative to the shell 1 under the action of external force and has a purification state facing the air inlet 2 and a flushing state facing the nozzle.
The catalytic filter screen 4 is arranged at the air inlet 2, and the catalyst is arranged in the filter material of the catalytic filter screen 4, so that harmful substances in the air to be purified entering from the air inlet 2 can react with the catalyst in the catalytic filter screen 4, the flushing device and the spraying device are arranged in the shell 1, when an intermediate product or a large amount of dust generated by the reaction of the harmful substances and the catalyst is attached to the surface of the catalytic filter screen 4, when the catalytic filter screen 4 needs to be flushed, the catalytic filter screen 4 and the shell 1 rotate relatively under the action of external force, so that the catalytic filter screen 4 is opposite to the nozzle of the spraying device, flushing air flow can be sprayed to the surface of the catalytic filter screen 4 from the nozzle of the spraying device, the dust or the intermediate product on the surface of the catalytic filter screen 4 is blown down, and the catalyst in the catalytic filter screen 4 can be displayed to continue to react with the harmful substances, harmful substances are removed, and the effect of removing the harmful substances by the air purification device is improved.
In order to facilitate the rotation of the catalytic filter 4 relative to the housing 1, the air purifying device in this embodiment further includes a driving device 10, and the driving device 10 is connected to the catalytic filter 4 and adapted to drive the catalytic filter 4 to rotate relative to the housing 1. As an alternative embodiment, the user may manually rotate the catalytic filter 4 without providing the driving device 10. As an alternative embodiment, the drive device 10 may be connected to the housing 1 to drive the housing 1 to rotate relative to the catalytic filter 4, or the user may manually rotate the housing 1.
There are many forms of the driving device 10, and the driving device 10 in the present embodiment includes: the base is fixedly connected in the shell 1; the rotary table is connected to the base, and the catalytic filter screen 4 is fixedly connected to the rotary table; and the power device is connected with the rotary disc and is suitable for driving the rotary disc to further drive the catalytic filter screen 4 to rotate. Specifically, the power device is a motor. Through setting up drive arrangement 10 to including base, carousel and power device for the carousel can rotate with catalysis type filter screen 4 automatically under the drive to power device, drive arrangement 10's structure is fairly simple. As an alternative embodiment, the driving device 10 may be any other device capable of rotating the catalytic filter 4.
The flushing gas flow in this embodiment is a high pressure gas flow. In order to conveniently provide high pressure air flow, the flushing device in this embodiment is a compressed air bottle 5. As an alternative embodiment, other equipment may be used to provide the high-pressure gas stream. In an alternative embodiment, the flushing gas stream may be an atmospheric gas stream.
The ejector in this embodiment is externally provided with a heating element adapted to heat the flushing air flowing through the ejector. Set up to high-pressure draught through washing the air current, the injection apparatus sets up the heat-generating body outward, make the washing air current that is sprayed out by injection apparatus's spout be high-pressure high-temperature air current, make the intermediate product that harmful substance and catalyst reaction generated, can be at the next reaction of quick entering under the high-temperature high-pressure environment, finally generate carbon dioxide and water, prevented piling up of intermediate product at catalysis type filter screen 4 surface, make inside catalyst can show, catalyst regeneration continues to react with harmful substance promptly, the efficiency of getting rid of harmful substance has been improved greatly.
In the embodiment, the two air inlets 2 are oppositely arranged on the side wall of the shell 1, the air outlet 3 is arranged at the top of the shell 1, and one side of the air outlet 3 close to the inside of the shell 1 is also provided with a fan 7; the spraying device comprises two groups of spraying units, wherein the spraying units are provided with nozzles and are fixedly connected to the side wall of the shell 1 relatively, and each air inlet 2 and each group of spraying units are arranged adjacent to each other in the circumferential direction of the side wall of the shell 1. Through setting up two air intakes 2 relatively on the lateral wall of casing 1, two sets of injection unit fixed connection relatively are on the lateral wall of casing 1, and each air intake 2 and every group injection unit are adjacent to be set up in the circumference of the lateral wall of casing 1, make when purifying harmful substance, catalysis type filter screen 4 can just to air intake 2, when needs wash catalysis type filter screen 4, drive arrangement 10 can drive catalysis type filter screen 4 and rotate to orientation nozzle department, the transformation of two states is more convenient. As an alternative embodiment, the bottom of the housing 1 may be provided with a bracket, and the outlet 3 may be provided at the bottom of the housing 1, or both the bottom and the top of the housing 1 may be provided with the outlet 3.
Specifically, the injection unit in this embodiment is a high-pressure gun head 6, and a heat generating film is provided on an outer surface thereof. As an alternative embodiment, the injection device may be a nozzle. As an alternative embodiment, the heating element may be a heater of another type.
The injection unit in this embodiment includes three rows and three columns, and is fixedly connected to the housing 1 at intervals. Through being three rows three columns ground fixed connection with the injection unit on washing unit's outer wall for set up a compressed air bottle 5, can satisfy the washing to annular structure's catalysis type filter screen 4, make overall structure simpler, compact. As an alternative embodiment, the number of rows of the ejection devices may be set according to the actual situation. As an alternative embodiment, a plurality of compressed air tanks 5 may be provided.
The catalytic filter 4 in this embodiment is an annular structure with a hollow cavity. Through setting up catalysis type filter screen 4 to the annular structure that is formed with the cavity, make along casing 1's circumference all have catalysis type filter screen 4, need wash long after the time at catalysis type filter screen 4 towards the partial air-purifying of air intake 2 department, drive arrangement 10 drives this part catalysis type filter screen 4 and washes towards injection apparatus's spout, and original clean catalysis type filter screen 4 towards spout department then can continue to purify air towards air intake 2, make air purification device can treat simultaneously air-purifying and purify, and wash dirty stifled catalysis type filter screen 4, user experience has greatly been improved. As an alternative embodiment, four catalytic filters 4 may be provided in the form of a sheet, two catalytic filters 4 may be provided toward the air inlet 2, and two catalytic filters 4 may be provided toward the nozzle.
Because the catalytic filter screen 4 is an annular structure with a hollow cavity, the flushing device in the embodiment is arranged outside the catalytic filter screen 4 in order to facilitate the placement and connection of the flushing device and the injection device; and the spraying device is connected with the flushing device through an air pipe 9. As an alternative embodiment, the flushing device may also be arranged in the hollow chamber.
In order to carry out prefiltering in order to treat big particulate matter, hair etc. in the air-purifying, improve purification efficiency, air purification device in this embodiment still includes the primary filter screen, locates catalysis type filter screen 4 on being close to air intake 2. As an alternative embodiment, the primary filter may not be provided.
The air purification device in this embodiment is air purifier, can be used to get rid of harmful substance such as formaldehyde, particulate matter, bacterium in the room air. As an alternative embodiment, the air purification device may be a fan with a purification function, an air conditioner, or the like.
The catalytic filter screen 4 in this embodiment is a carbon cloth-sandwiched composite filter screen, and is a filter screen loaded with a normal temperature catalyst, and the normal temperature catalyst is some metals or metal oxides, such as platinum Pt, manganese oxides MnOx, cobalt oxides CoOx, and the like, and these metals or metal oxides are loaded on activated carbon, and can perform catalytic oxidation reaction with formaldehyde at room temperature (normal temperature) to generate formate, and further perform catalytic oxidation to carbon dioxide and water. As an alternative embodiment, the catalytic filter 4 may be a separation filter, i.e., a HEPA high efficiency air filter + an activated carbon filter.
Taking the air purifier to remove formaldehyde as an example, after a user uses the air purifier for a period of time (such as three months), the active centers of the metal catalysts on the catalytic filter screen 4 are covered by dust and an intermediate product, namely formate, generated by the reaction of the metal and the formaldehyde, so that the activity of the catalysts is reduced, even the catalysts are invalid, at this time, the driving device 10 can be started to rotate the catalytic filter screen 4 by 90 degrees, so that the catalytic filter screen 4 originally facing the air inlet 2 now faces the nozzle, the catalytic filter screen 4 originally facing the nozzle now faces the air inlet 2, the compressed air bottle 5 is opened, the high-pressure gun head 6 with heating strongly blows the catalytic filter screen 4 (0.3 MPa-0.4MPa, 55 ℃ -65 ℃) so as to remove the formate and the dust covered by the active centers of the catalysts in the catalytic filter screen 4, and ensure that the whole filter screen can be blown, thereby resume removing aldehyde activity of catalyst, and owing to when washing catalysis type filter screen 4, catalysis type filter screen 4 can realize purification performance by normal use in addition, greatly strengthened air purifier's user experience.
In this embodiment, the penetration time of the filter material in the catalytic filter 4 and the overall machine formaldehyde CADR value of the air purifier were also tested, and the specific results are shown in tables 3 and 4 below:
because the breakthrough time of filter material indicates to set up a vertical reaction tube in catalysis type filter screen 4, there is the formaldehyde device of detection at the reaction tube both ends, add the filter material in the reaction tube, lead to formaldehyde in the reaction tube, detect formaldehyde concentration at the rear end and exceed initial concentration 10%, regard as to pierce through, this process is called the breakthrough time, can know from this, the more of the breakthrough time of filter material, then the better of effect of getting rid of formaldehyde, can know by table 3, washing unit and injection apparatus in this embodiment can play better effect to the regeneration of catalyst in catalysis type filter screen 4.
The CADR value of formaldehyde means the clean air transportation amount, and the larger the value, the better the purification effect, and as can be seen from table 4, the purification effect of the air purifier in this embodiment is better.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (19)
1. An air purification apparatus, comprising:
the air purifier comprises a shell (1), wherein an air inlet (2) and an air outlet (3) are formed in the shell (1), and the air inlet (2) is suitable for allowing air to be purified to enter;
the catalytic filter screen (4) is arranged in the shell (1) and positioned at the air inlet (2), the catalytic filter screen (4) is provided with a catalyst, and the catalyst is suitable for reacting with harmful substances in the air to be purified to generate an intermediate product;
the flushing device is arranged in the shell (1) and internally provided with flushing air flow;
injection apparatus with the washing unit intercommunication, injection apparatus includes the spout, the spout orientation catalysis type filter screen (4) set up, be suitable for with the washing air current sprays to on the catalysis type filter screen (4).
2. Air cleaning device according to claim 1, characterized in that the catalytic type sieve (4) is fixedly connected within the housing (1).
3. Air cleaning device according to claim 2, characterized in that the catalytic filter (4) is a ring structure formed with hollow cavities.
4. An air cleaning device according to claim 3, wherein the flushing device is provided within the hollow cavity.
5. The air cleaning device according to claim 2, wherein the spraying devices are arranged in a plurality of rows and columns and fixedly connected to the outer wall of the washing device at intervals.
6. The air purification apparatus according to claim 5, further comprising an air pipe, one end of the air pipe being connected to the spraying device, and the other end of the air pipe being connected to the flushing device.
7. The air cleaning device according to claim 2, wherein the number of the air inlets (2) is at least two, and the air inlets are spaced apart from each other on a peripheral wall of the housing (1).
8. The air cleaning device according to claim 7, wherein the number of the air inlets (2) is four, and the air inlets are uniformly distributed on the circumferential wall of the housing (1) along the circumferential direction.
9. Air cleaning device according to claim 1, characterized in that the spraying device is fixedly connected to the housing (1), and the catalytic filter (4) is adapted to rotate relative to the housing (1) under the action of external force, having a cleaning state towards the air inlet (2) and a rinsing state towards the nozzle.
10. Air cleaning device according to claim 9, further comprising a drive device (10), said drive device (10) being connected to said catalytic type sieve (4) and being adapted to drive said catalytic type sieve (4) in rotation with respect to said housing (1).
11. The air purification apparatus according to claim 10, wherein the driving device (10) comprises:
the base is fixedly connected in the shell (1);
the rotary table is connected to the base, and the catalytic filter screen (4) is fixedly connected to the rotary table;
and the power device is connected with the rotary disc and is suitable for driving the rotary disc to further drive the catalytic filter screen (4) to rotate.
12. The air purification apparatus according to claim 9, wherein the air inlet (2) is two and is oppositely disposed on the side wall of the housing (1).
13. The air purification apparatus according to claim 12, wherein the injection apparatus comprises two groups of injection units, which are relatively fixedly connected to the side wall of the housing (1), and each of the air inlets (2) and each group of injection units are disposed adjacent to each other in the circumferential direction of the side wall of the housing (1).
14. The air cleaning device according to claim 13, wherein the spraying units comprise a plurality of rows and a plurality of columns, and are fixedly connected to the shell (1) at intervals.
15. Air cleaning device according to claim 9, characterized in that the catalytic filter screen (4) is of an annular structure, and the flushing device is arranged outside the catalytic filter screen (4) and is connected with the spraying device through an air pipe (9).
16. An air cleaning device according to any one of claims 1-15, wherein the flushing air stream is a high pressure air stream.
17. Air cleaning device according to claim 16, characterized in that the flushing device is a compressed air bottle (5).
18. An air cleaning device according to any one of claims 1-15, characterized in that a heating body is arranged outside the spraying device, adapted to heat the flushing air flow flowing through the spraying device.
19. The air purification device according to any one of claims 1 to 15, further comprising a primary filter screen disposed on a surface of the catalytic filter screen (4) adjacent to the air inlet (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267323.2A CN111151133B (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
| CN202010765789.5A CN113494753A (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267323.2A CN111151133B (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010765789.5A Division CN113494753A (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111151133A true CN111151133A (en) | 2020-05-15 |
| CN111151133B CN111151133B (en) | 2020-09-29 |
Family
ID=70567805
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010765789.5A Pending CN113494753A (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
| CN202010267323.2A Active CN111151133B (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010765789.5A Pending CN113494753A (en) | 2020-04-08 | 2020-04-08 | Air purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN113494753A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577151A (en) * | 2020-12-17 | 2021-03-30 | 宁波星宏智能技术有限公司 | Intelligence house air purification device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413398A (en) * | 2022-02-14 | 2022-04-29 | 珠海格力电器股份有限公司 | Purifier, method and device for controlling purifier, and nonvolatile storage medium |
| ES2954837A1 (en) * | 2022-04-19 | 2023-11-27 | Ballesteros Alejandro Arranz | Dust filter machine (Machine-translation by Google Translate, not legally binding) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001246227A (en) * | 2000-01-05 | 2001-09-11 | Reiko Udagawa | Air cleaner for copier |
| CN101954228A (en) * | 2010-10-18 | 2011-01-26 | 杭州南方环境净化设备有限公司 | Pulse blowback air purification equipment and dust cleaning method |
| CN203990109U (en) * | 2014-05-29 | 2014-12-10 | 哈尔滨爱生智能技术开发有限公司 | The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration |
| CN204429004U (en) * | 2014-11-26 | 2015-07-01 | 陈�光 | A kind of air purifier of energy automatic ash removing |
| CN205878388U (en) * | 2016-07-30 | 2017-01-11 | 王巧东 | Have pulse automatically cleaning air purification equipment |
| CN205867831U (en) * | 2016-07-30 | 2017-01-11 | 王巧东 | Pulse recoil air purification equipment |
| CN106799106A (en) * | 2016-12-31 | 2017-06-06 | 西安交通大学青岛研究院 | A kind of side entering type electric device space environment purifier and purification method |
| CN206980441U (en) * | 2017-07-24 | 2018-02-09 | 东莞市高达环保科技有限公司 | UV photocatalysis organic waste gas treatment equipments |
| CN109078489A (en) * | 2018-08-29 | 2018-12-25 | 西北工业大学 | A kind of indoor air-purification device that rotatable absorption-degradation free of discontinuities is integrated |
| CN109173451A (en) * | 2018-09-07 | 2019-01-11 | 四川万康节能环保科技有限公司 | A kind of air purifier filter gauze cleaning method |
| CN110252051A (en) * | 2019-05-27 | 2019-09-20 | 山东中琦环保设备制造有限公司 | A kind of boiler smoke dust-removal and desulfurizing denitration and the method for removing dioxin |
| CN110756045A (en) * | 2019-11-05 | 2020-02-07 | 大连理工大学 | Application of BN and metal modified BN material in 'storage-oxidation regeneration' cyclic formaldehyde removal reaction |
| CN210121427U (en) * | 2019-04-24 | 2020-03-03 | 张家港十八顷环保设备有限公司 | High-efficient automatically cleaning waste gas photocatalysis apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7316732B2 (en) * | 2005-07-14 | 2008-01-08 | Access Business Group International Llc | Air treatment filter and related method |
| CN2880290Y (en) * | 2006-03-20 | 2007-03-21 | 深圳市比克电池有限公司 | Gas furifying device |
| CN202061515U (en) * | 2011-05-16 | 2011-12-07 | 龙习文 | Wash type air purifier |
| CN106958884A (en) * | 2017-02-28 | 2017-07-18 | 四川万康节能环保科技有限公司 | A kind of quick descaling air purifier |
| CN109442608A (en) * | 2017-08-17 | 2019-03-08 | 成都众恒智合信息技术有限公司 | A kind of Table top air purifier |
| ES2880409T3 (en) * | 2018-07-05 | 2021-11-24 | Taurus Res And Development S L U | Air filter to remove aldehyde-type VOCs from indoor air |
-
2020
- 2020-04-08 CN CN202010765789.5A patent/CN113494753A/en active Pending
- 2020-04-08 CN CN202010267323.2A patent/CN111151133B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001246227A (en) * | 2000-01-05 | 2001-09-11 | Reiko Udagawa | Air cleaner for copier |
| CN101954228A (en) * | 2010-10-18 | 2011-01-26 | 杭州南方环境净化设备有限公司 | Pulse blowback air purification equipment and dust cleaning method |
| CN203990109U (en) * | 2014-05-29 | 2014-12-10 | 哈尔滨爱生智能技术开发有限公司 | The gas alarm filter of the self-cleaning of a kind of energy, catalyst activity regeneration |
| CN204429004U (en) * | 2014-11-26 | 2015-07-01 | 陈�光 | A kind of air purifier of energy automatic ash removing |
| CN205878388U (en) * | 2016-07-30 | 2017-01-11 | 王巧东 | Have pulse automatically cleaning air purification equipment |
| CN205867831U (en) * | 2016-07-30 | 2017-01-11 | 王巧东 | Pulse recoil air purification equipment |
| CN106799106A (en) * | 2016-12-31 | 2017-06-06 | 西安交通大学青岛研究院 | A kind of side entering type electric device space environment purifier and purification method |
| CN206980441U (en) * | 2017-07-24 | 2018-02-09 | 东莞市高达环保科技有限公司 | UV photocatalysis organic waste gas treatment equipments |
| CN109078489A (en) * | 2018-08-29 | 2018-12-25 | 西北工业大学 | A kind of indoor air-purification device that rotatable absorption-degradation free of discontinuities is integrated |
| CN109173451A (en) * | 2018-09-07 | 2019-01-11 | 四川万康节能环保科技有限公司 | A kind of air purifier filter gauze cleaning method |
| CN210121427U (en) * | 2019-04-24 | 2020-03-03 | 张家港十八顷环保设备有限公司 | High-efficient automatically cleaning waste gas photocatalysis apparatus |
| CN110252051A (en) * | 2019-05-27 | 2019-09-20 | 山东中琦环保设备制造有限公司 | A kind of boiler smoke dust-removal and desulfurizing denitration and the method for removing dioxin |
| CN110756045A (en) * | 2019-11-05 | 2020-02-07 | 大连理工大学 | Application of BN and metal modified BN material in 'storage-oxidation regeneration' cyclic formaldehyde removal reaction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577151A (en) * | 2020-12-17 | 2021-03-30 | 宁波星宏智能技术有限公司 | Intelligence house air purification device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113494753A (en) | 2021-10-12 |
| CN111151133B (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111151133B (en) | Air purifying device | |
| CN100441966C (en) | Vertical light catalytic air purifier | |
| CN2747497Y (en) | Vertical photocatalysed air purifier | |
| CN112082231A (en) | Multifunctional air purifier | |
| JPWO2007037002A1 (en) | Antigen exposure chamber and cleaning / drying method thereof | |
| JP3077791U (en) | Air purification equipment | |
| CN205402963U (en) | Indoor air purifying device of rotatory formula of admitting air | |
| CN209138247U (en) | A kind of exhaust gas treating tower | |
| CN109589748B (en) | A kind of organic waste gas treatment system and solvent recovery process | |
| CN112128870A (en) | Washing air purifier | |
| CN2393654Y (en) | Dry paint mist purifying chamber | |
| CN111974181B (en) | Flue gas processing apparatus in pitch workshop | |
| CN214339388U (en) | Ventilation unit for chicken coop | |
| CN109764426A (en) | A kind of air cleaning unit of rinse air | |
| CN107694247A (en) | A kind of air purification method based on water mist sprinkling and photocatalysis technology | |
| CN108619841A (en) | A kind of second-hand flue gas circulating purifying device in interior | |
| CN211987794U (en) | Glass smelting pot tail gas processing apparatus with used heat utilization function | |
| CN110230526B (en) | Regenerating device for tail gas purifier of engine | |
| JPH05217A (en) | Apparatus and method for treating exhaust gas | |
| CN207153360U (en) | A kind of waste gas purification apparatus | |
| CN215901261U (en) | Waste gas treatment device for melt-blown fabric extruder | |
| CN220531118U (en) | Integrated multi-layer treatment atmosphere treatment equipment | |
| CN216024121U (en) | Multi-section catalytic oxidation device for industrial waste gas | |
| CN215876787U (en) | VOCs administers and uses catalytic combustion equipment | |
| CN213049942U (en) | Air purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |