WO2018228230A1

WO2018228230A1 - Wet-type air purifier

Info

Publication number: WO2018228230A1
Application number: PCT/CN2018/089775
Authority: WO
Inventors: 顾志龙; 顾晟华
Original assignee: 顾志龙
Priority date: 2017-06-15
Filing date: 2018-06-04
Publication date: 2018-12-20
Also published as: CN109126324A

Abstract

The object of the present invention is to provide a wet-type air purifier, comprising a housing and an air purifying member. The air purifying member comprises a first spray nozzle, a second spray nozzle, a first filter screen and a second filter screen; the first filter screen is located on the upstream side of the second filter screen in an air flow path, and the first filter screen is provided with a first mesh; the first spray nozzle is used to spray large droplets of an aqueous solution towards the first filter screen to form a liquid film on the mesh of the first filter screen; the second spray nozzle is used to spray fine droplets of the aqueous solution into a space between the first filter screen and the second filter screen to form a water mist filter layer. The liquid film is formed on the first mesh under the action of liquid tension. The air can break through the liquid film and enter the water mist filter layer. The particles in the air can be well filtered by means of the liquid film, so as to achieve a primary purification, and then the water mist filter layer can perform a secondary purification of the air. The moisture in the purified air is filtered by multi-layer fuzz fibers in a mist eliminator, and the purified air is output by means of a fan after purification, carbon reduction, and oxygen addition.

Description

Wet air purifier

Technical field

The invention relates to the technical field of air purification, and in particular to a wet air purifier.

Background technique

Dirty air damages human health. People who work, study, and live in closed indoors are not only polluted by smog and viruses in the convective air of the inner circulation, but also consume oxygen by breathing to increase carbon dioxide, making it in the environment. The oxygen content of the air is not high enough. The volume fraction of oxygen in the normal fresh air of nature is about 21%, and the volume fraction of carbon dioxide is about 0.03%.

The oxygen content of the gas that the normal person breathes every time has been reduced to 16%, which consumes 24% of the normal oxygen content in the air, and the carbon dioxide in the exhaled gas has increased to 4%, which is the normal proportion of carbon in the natural air. 133 times. During normal mental work and general activities, people consume about 0.8 kilograms of oxygen per day, while exhaled carbon dioxide is about 0.9 kilograms. Take a classroom with 50 students: for example, the total volume of air in the classroom is 250m ³ , of which the total weight of oxygen is 75 kg. After one hour of study, the students consumed 1.6665 kilograms of indoor oxygen, which caused the oxygen deficiency in the indoor air to reach 2.22%. The carbon dioxide increased from 0.1485 kilograms to 2.0235 kilograms, which is 13.6 times the carbon dioxide content in normal air. Carbon dioxide itself is not toxic, but when the carbon dioxide in the air exceeds the normal content, it will have a harmful effect on the human body. For example, in an environment where oxygen is consumed and carbon dioxide is accumulated in a large amount, people are drowsy.

The dry air purifier currently available on the market has the functions of sterilization, defogging, formaldehyde removal, humidification and dehumidification; the method adopted is indoor circulating dry purification; the selected purification material has a dry adsorption filter layer, Materials such as activated carbon nanoparticles and air purification using ultraviolet light waves. Among the above-mentioned purification materials, the activated carbon has strong water absorption, and in a short period of time, the water is saturated and loses the suction function, the distribution of the nano-granular layer is sparse, the air passes without contact with it, and there is no repair function after the failure; adsorption The filter layer will be clogged quickly after long-term filtration of outdoor fog and humid air, and needs to be replaced frequently. In addition, since the traditional dry air purifier purifies itself by itself, the indoor air is repeatedly circulated and purified. Although the pollutants in the air drop rapidly, the increase of CO ₂ in the air and the decrease of O ₂ are also rapid, resulting in air quality. deterioration.

As noted above, prior art dry air purifiers in the art have a number of disadvantages. There is a need in the art for a wet air purifier that is capable of deep purifying air.

Summary of the invention

It is an object of the present invention to provide a wet air cleaner capable of deep purification of air.

A wet air purifier for achieving the object includes an air purifying member for purifying air, the air purifying member including a first head, a second head, a first screen, and a second screen; In the flow path, the first filter mesh is located on an upstream side of the second filter mesh, and the first filter mesh has a first mesh;

The first spray head is configured to spray a large mist of the aqueous solution to the first screen to keep the first screen wet and form a liquid film on the first mesh; the second head is used for Spraying a fine mist of the aqueous solution into a space between the first screen and the second screen to form a water mist filter layer;

The liquid film is continuously broken by the air to enable the air to pass through the first mesh and into the space defined by the first filter and the second filter to be covered by the water mist The filter layer is filtered and then passed through the second filter to the downstream side.

The wet air purifier is further characterized in that the first head is disposed on a front side of the first screen to spray the first screen along the flow direction of the air. Said large droplets of the aqueous solution.

Further, the wet air purifier is further characterized in that the second head is disposed on an upper side and a left and right side of a space between the first screen and the second screen, and is sprayed in the middle Said fine mist of the aqueous solution.

The wet air purifier is further characterized in that the air purifying member further comprises a top plate and a bottom plate, the top plate being disposed on a top of the first filter net and the second filter net, the bottom plate being disposed At the bottom of the first screen and the second screen;

The second head is disposed on the top plate and the left and right sides of the space and is capable of spraying fine mist into the space between the first screen and the second screen, and the bottom plate is opened An aqueous solution outlet for holding the mist droplets formed by the fine mist droplets, and collecting the mist droplets to the aqueous solution outlet and flowing out.

The wet air purifier is further characterized in that the air purifying member further comprises a third screen, and the third screen is disposed on a downstream side of the second screen.

The wet air purifier further characterized in that the air purifying member further comprises a defogger, the third screen is disposed at an air inlet of the defogger; the inside of the defogger There is a multi-layered fine-wool fiber structure for filtering the mist dripping water carried by the air.

The wet air cleaner further characterized in that the wet air cleaner further includes a fan member, and the fan member is disposed on a downstream side of the defogger in a flow path of the air To pump the air.

The wet air purifier is further characterized in that the wet air purifier further comprises an aqueous solution circulation tank, a water pump and an aqueous solution tube, the aqueous solution circulation tank includes an aqueous solution inlet, and the aqueous solution inlet is used to The aqueous solution flowing out of the aqueous solution outlet flows into the aqueous solution circulation tank;

An inlet and an outlet of the water pump are respectively connected to the aqueous solution circulation tank and the aqueous solution pipe, and the aqueous solution pipe is respectively connected to the first spray head and the second spray head; a filter cover is arranged at an inlet of the water pump .

The wet air purifier is further characterized in that a first chemical agent for generating oxygen is added to the aqueous solution.

The wet air purifier is further characterized in that a second chemical agent for converting carbon dioxide into oxygen is added to the aqueous solution.

A positive progressive effect of the present invention is that the present invention provides a wet air purifier comprising an air purifying member comprising a first spray head, a second spray head, a first screen and a second screen; the flow in the air In the path, the first filter screen is located on the upstream side of the second filter screen, and the first filter mesh is provided with the first mesh; the first spray head is used for spraying the large filter droplet of the aqueous solution to the first filter mesh to keep the first filter mesh Wetting and forming a liquid film on the first mesh; the second nozzle is for spraying fine droplets of the aqueous solution into the space between the first screen and the second screen to form a water mist filter layer. A liquid film is formed on the first mesh due to the tension of the liquid. The air can break through the liquid film and enter the water mist filter layer. In this process, the liquid film can filter out the particles in the air well to achieve a purification, and then the water mist filter layer can purify the air twice. The wet air purifier provided by the present invention enables the deep purification of air. The water in the purified air is filtered by the multi-layer fine fiber in the mist eliminator, and is purified by the purifier, carbon reduction, and oxygenation.

DRAWINGS

The above and other features, aspects and advantages of the present invention will become more apparent from the following description in conjunction with the appended claims

Figure 1 is a cross-sectional view of a wet air purifier of the present invention;

Figure 2 is a schematic view of the first screen of the present invention.

detailed description

The invention will be further described in the following detailed description of the embodiments of the invention, A person skilled in the art can make similar promotion and deduction according to the actual application without departing from the connotation of the present invention. Therefore, the scope of the present invention should not be limited by the content of the specific embodiment.

It is to be noted that FIGS. 1 to 2 are only examples, which are not drawn to the same scale conditions, and should not be construed as limiting the scope of protection required by the present invention.

1 shows a wet air cleaner in an embodiment of the present invention, which includes a housing 16 and an air purifying member for purifying air 5. The air purification member includes a plurality of portions that can be placed inside the housing 16. The casing 16 is provided with an air inlet 161 and an air outlet 162. The air 5 can enter the casing 16 from the air inlet 161, and flows through the air purifying member, is purified by the air purifying member, and then flows out of the casing 16 from the air outlet 162.

Taking a humid air purifier installed in a room as an example, the dirty air 5 in the room enters the casing 16 from the air inlet 161 and flows through the air purifying member, which is purified by the air purifying member and becomes clean air 5, and is cleaned. The air 5 then flows out of the housing 16 from the air outlet 162 back into the room to complete the air flow cycle.

In the embodiment shown in FIG. 1, the air purifying member is disposed within the housing 16, and includes a first head 1, a second head 2, a first screen 3, and a second screen 4. An aqueous solution circulation tank 12, a water pump 13 and an aqueous solution pipe 14 may be disposed in the casing 16, and the inlet and the outlet of the water pump 13 are respectively connected to the aqueous solution circulation tank 12 and the aqueous solution pipe 14, and the aqueous solution pipe 14 and the first nozzle 1 and the second nozzle 2 separate connections. In FIG. 1 , the connection manner of the aqueous solution tube 14 and the first spray head 1 and the second spray head 2 is connected in series. In other embodiments, the connection manner between the aqueous spray tube 14 and the first spray head 1 and the second spray head 2 can also be based on Need to be set to connect in parallel.

The water pump 13 can lift the aqueous solution in the aqueous solution circulation tank 12 to the first head 1 and the second head 2 and eject it. Due to the different types of nozzles, the first nozzle 1 ejects a large mist of the aqueous solution, and the second nozzle 2 ejects a fine mist of the aqueous solution. Both the large droplets of the aqueous solution and the fine mist droplets of the aqueous solution are used to filter and purify the air 5. Optionally, the diameter of the large droplets is larger than the diameter of the fine droplets.

A filter cover 15 is provided at the inlet of the water pump 13 to prevent dust which is washed away by the large mist of the aqueous solution and the fine mist of the aqueous solution and re-introduced into the aqueous solution circulation tank 12 into the aqueous solution pipe 14. In one embodiment, the tank of the aqueous solution recycle tank 12 is provided with a solution inlet 121 into which large droplets of the falling aqueous solution and fine mist of the aqueous solution can be collected and flowed into the aqueous solution circulation tank 12. The dust that has been washed out also enters the aqueous circulation tank 12. After the dust is accumulated in the aqueous solution circulation tank 12 by a certain amount, the dirty aqueous solution is discharged by opening the drain valve 19 to achieve the purpose of discharging the dust. When the water level of the aqueous solution recycle tank 12 is lowered, a clean aqueous solution can be added to the aqueous solution addition port 17. The aqueous solution inlet port 17 can be an opening that is formed in the housing 16 that can be in communication with the aqueous solution recycle tank 12 via conduit 18.

The process in which dust is washed out from the air 5 will be described below. Referring to Figure 1, the first head 1 is used to spray a large droplet of the aqueous solution to the first screen 3 to keep the first screen 3 wet and form a liquid film 301a on the first mesh 301; the second head 2 is used for A fine mist of the aqueous solution is sprayed into the space between the first screen 3 and the second screen 4 to form the water mist filter layer 6. The liquid film 301a is used to be broken by the air 5 so that the air 5 can pass through the first eye 301 and enter the space between the first screen 3 and the second screen 4 to be filtered by the water mist filter layer 6 Flows through the second screen 4 to the downstream side. The first screen 3 can be a micron-sized screen having a mesh number between 100 mesh and 200 mesh. The cross section of the first mesh 301 may be on the order of microns.

The liquid film 301a is formed on the first aperture 301 due to the liquid tension. The air 5 breaks through the liquid film 301a and enters the water mist filter layer 6, and the particles in the air 5 can be filtered and blocked outside the 301 to achieve one purification, and the fine mist droplets in the water mist filter layer 6 can be in the gaseous state in the air 5. The contaminants are further absorbed and dissolved to achieve secondary purification of the air, so that the wet air purifier provided by the present invention can perform deep purification of air and has high air purification capability. The function of the second screen 4 is to block the finer dust in the water mist filter layer 6 from flowing downstream with the air 5.

In one embodiment, the first spray head 1 is disposed on the front side of the first screen 3 to spray large droplets of the aqueous solution toward the first screen 3 in the flow direction of the air 5. The particulate matter-containing air 5 can be made to impinge on the liquid film 301a at a faster rate. Further, the first head 1 designed on the front side of the first screen 3 can form the liquid film 301a on the front side of the first mesh 301, so that the liquid film 301a is sufficiently mixed with the air and the impulse is increased.

Alternatively, the second head 2 is disposed on the upper side of the space between the first screen 3 and the second screen 4 to spray fine droplets of the aqueous solution from top to bottom. The second head 2 may be disposed at the upper, lower, left, and right or other positions in the space between the first screen 3 and the second screen 4 as needed.

In a more specific embodiment, the air purification member further includes a top plate 7 disposed on top of the first screen 3 and the second screen 4, and a bottom plate 8 disposed on the first screen 3 and the second The bottom of the screen 4; the second head 2 is disposed on the top plate 7 and on the left and right side panels, and is capable of ejecting fine droplets into the space between the first screen 3 and the second screen 4, on the bottom plate 8. An aqueous solution outlet 801 is opened, and the bottom plate 8 is used to hold the mist droplets formed by the fine mist droplets, and the mist droplets are collected into the solution water outlet 801 and discharged. The solution water outlet 801 may be disposed above the solution water inlet 121 to facilitate entry of the aqueous solution formed by the mist droplets into the aqueous solution circulation tank 12.

With continued reference to FIG. 1, in order to further enhance the purification ability and prevent the mist from flowing out of the casing 16 of the wet air cleaner, the air cleaning member further includes a third screen 9, which is disposed on the downstream side of the second screen 4. . Further, the wet air cleaner further includes a fan member 11 which is disposed on the downstream side of the demister 10 to suck the air 5 in the flow path of the air 5. The fan member 11 is disposed within the housing 16 and is located between the demister 10 and the air outlet 162. The inside of the mist eliminator 10 has a plurality of fine-wool fiber structures for filtering the moisture carried by the air 5.

Further, the defogger 10 can be replaced entirely by a fog-stop cloth. The anti-fogging cloth may be disposed on one section of the air flow path and on the upstream side of the fan member 11, that is, the position of the defogger 10. The anti-fogging cloth can be made of sponge or fiber material, has a small volume, and also has a good defogging effect, and can filter the water taken out by the air 5. In one embodiment, the matte cloth has a thickness of from 2 mm to 5 mm.

In the embodiment shown in Fig. 1, the mist dripping liquid filtered by the multi-layer fine hair structure collects at the bottom of the mist eliminator 10, and can flow through the third filter screen 9 on the aqueous solution circulation tank 12, thereby passing through the flow. The

crossings

21, 22 flow toward the solution inlet 121. The first screen 3 and the second screen 4 may also be disposed on the upper side of the aqueous solution circulation tank 12. The droplets of water formed by the large droplets sprayed from the first head 1 onto the first screen 3 flow under the action of gravity to the outer wall of the aqueous solution circulation tank 12, and pass through the channel opening 23 to the solution inlet 121.

A control module 15 may also be provided on the housing 16 to receive commands to control operation of the wet air cleaner. Specifically, the control module 15 may include a display screen having a touch function, which can display external commands by touch and display wet air purification according to external commands, in addition to displaying operating parameters of the wet air cleaner. The operation of the device.

The wet air purifier provided by the invention can also have the function of reducing carbon and aeration, and therefore can also be called a multifunctional wet air purification carbon reduction aerator. The carbon reduction function can be achieved by adding a first chemical agent for generating oxygen in an aqueous solution. The first chemical agent includes sodium peroxide, hydrogen peroxide, and the like.

The carbon reduction and oxygenation function can be achieved by adding a second chemical agent for converting carbon dioxide into oxygen in an aqueous solution. The second chemical agent includes sodium peroxide, potassium superoxide, and the like, wherein the carbon dioxide reacts with the second chemical to generate oxygen.

In the process of use, the source of air 5 changes according to the change of outside air temperature. When the outside temperature and the human body are warm, such as spring and autumn, the outdoor atmosphere can be extracted for purification and convection with indoor air. When the air 5 is indoor circulating air, if the number of indoors is small, but there are old, weak, and sick patients, the first chemical agent needs to be added to the aqueous solution inlet port 17. When the air 5 is indoor circulating air, such as indoors, the concentration of carbon dioxide is serious in classrooms, conference rooms, and hospitals. When the oxygen deficiency is serious, the second chemical agent is added to the aqueous solution.

The present invention is disclosed in the above preferred embodiments, but it is not intended to limit the invention, and any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the invention. In the content of the technical solutions of the present invention, any modifications, equivalent changes, and modifications to the above embodiments in accordance with the technical scope of the present invention fall within the scope of protection defined by the claims of the present invention.

Claims

A wet air purifier comprising an air purifying member for purifying air (5), characterized in that the air purifying member comprises a first head (1), a second head (2), and a first screen (3) And a second screen (4); on the flow path of the air (5), the first screen (3) is located on the upstream side of the second screen (4), the first filter The net (3) has a first mesh (301);

The first head (1) is configured to spray a large mist of the aqueous solution to the first screen (3) to form a liquid on the first mesh (301) of the first screen (3) a membrane (301a); the second nozzle (2) is for spraying a fine mist of an aqueous solution into a space between the first screen (3) and the second screen (4) to form water Fog filter layer (6);

The liquid film (301a) is continuously broken by the air (5), thereby enabling the air (5) to pass through the first mesh (301) and into the first filter (3) and The space between the second screens (4) is filtered by the water mist filter layer (6) and then flows through the second screen (4) to the downstream side.
A wet air purifier according to claim 1, wherein said first head (1) is disposed on a front side of said first screen (3) to follow the flow of said air (5) The direction is to spray the large droplet of the aqueous solution to the first screen (3).
A wet air purifier according to claim 1, wherein said second head (2) is disposed in a space between said first screen (3) and said second screen (4) The fine mist droplets of the aqueous solution are sprayed toward the middle on the upper side and the left and right sides.
A wet air purifier according to claim 3, wherein said air purifying member further comprises a top plate (7) and a bottom plate (8), said top plate (7) being disposed on said first filter (3) And a top portion of the second screen (4), the bottom plate (8) being disposed at a bottom of the first screen (3) and the second screen (4);

The second head (2) is disposed on the top plate (7) and left and right sides of the space and is capable of a space between the first screen (3) and the second screen (4) Spraying fine mist droplets on the bottom plate (8), wherein the bottom plate (8) is provided with an aqueous solution outlet (801) for holding the mist droplets formed by the fine mist droplets, and collecting the mist droplets The aqueous solution outlet (801) flows out.
A wet air purifier according to claim 1, wherein said air purifying member further comprises a third screen (9), said third screen (9) being disposed on said second screen (4) The downstream side of the ).
A wet air purifier according to claim 5, wherein said air purifying member further comprises a defogger (10), said third screen (9) being disposed at said defogger (10) At the air inlet; the interior of the mist eliminator (10) has a plurality of fine-wool fiber structures for filtering the droplets carried by the air.
A wet air cleaner according to claim 6, wherein said wet air cleaner further comprises a fan member (11), said fan member (11) in a flow path of said air (5) Provided on the downstream side of the mist eliminator (10) to suck the air (5).
A wet air purifier according to claim 4, wherein said wet air cleaner further comprises an aqueous solution circulation tank (12), a water pump (13) and an aqueous solution pipe (14), said aqueous solution circulation tank (12) Including a solution inlet (121), the solution inlet (121) is used to flow the aqueous solution flowing out of the aqueous solution outlet (801) into the aqueous solution circulation tank (12);

An inlet and an outlet of the water pump (13) are respectively connected to the aqueous solution circulation tank (12) and the aqueous solution pipe (14), the aqueous solution pipe (14) and the first spray head (1) and the first The two nozzles (2) are respectively connected; a filter cover (15) is arranged at the inlet of the water pump (13).
A wet air cleaner according to claim 1, wherein a first chemical agent for generating oxygen is added to said aqueous solution.
A wet air purifier according to claim 1, wherein a second chemical agent for converting carbon dioxide into oxygen is added to said aqueous solution.