KR102283397B1 - Air cleaning device - Google Patents

Abstract

The present invention provides an air purifying device in a structure which induces sufficient contact of introducing air and washing water and effectively removes harmful particles in the air. The present invention comprises: an air sucking part (10); a washing water contact part (20) which makes the air and washing water in contact by spraying the washing water; a cyclone separating part (30) which collects the air and the washing water mixed at a lower side of the washing water contact part and separates purified air; an air discharging part (40) which discharges the air separated in the cyclone separating part; and a washing water collecting part (50) which collects the washing water discharged from the cyclone separating part (30).

Description

Air cleaning device {AIR CLEANING DEVICE}

The present invention relates to an air purifying device, and more particularly, by contacting inhaled air with washing water to collect particles in the air and purify the air, and to separate the air discharged by the action of a cyclone separator with droplets of washing water It relates to an air purifier that can effectively separate.

A lot of wet air purifiers have been developed to remove harmful substances in the air by spraying washing water.

FIG. 1 relates to such a conventional air purifier, and is disclosed in Korean Patent Registration No. 10-1595218.

Referring to FIG. 1, the air purifying device 1 introduces the air to be treated through the air inlet 2, and the introduced air enters at high speed from a deflected position on a plane (entering in an oblique or normal direction), thereby forming the inner wall. rotation rises accordingly.

At this time, the droplet spraying devices 3 and 4 on the upper side spray the washing water and contact the rotating rising air with the liquid contact, so that the droplets can collect and remove contaminants in the air.

A gas-liquid separation device 5 is installed on the upper side to remove droplets from the rising air, and then the air can be discharged upward.

The reason that the air in the air purifying device 1 above is configured to rotate upward is so that droplets and air are easily separated by the cyclone effect while rotating upward along the inner wall.

When looking at the structure and operation of such a conventional air purifier 1, there is an effect that can effectively remove air and droplets by the cyclone effect, but as the air enters the inside from the air inlet 2, it immediately rotates and rises. Therefore, there is a problem in that it is difficult to make sufficient contact between the cleaning liquid sprayed from the droplet ejection device 2 and the rising air.

Accordingly, the sprayed cleaning liquid is a structure that is somewhat insufficient in effect to sufficiently capture harmful particles in the air, and in order to increase the cleaning effect on the air, the cleaning liquid is sprayed sequentially to form a multi-stage structure so that the cleaning action is repeated. However, there is a problem in that the entire device becomes complicated and requires a large installation space.

In addition, since the contact between the air and the cleaning liquid is not sufficient, it is difficult to collect particles in the air, and there is a problem in that the effect of collecting and sterilizing viruses and bacteria in the air is low.

The present invention has been devised in view of the above, and an object of the present invention is to ensure sufficient contact between the introduced air and the washing water before separating the washing water droplets in the air, and the removal of harmful particles in the air more effectively. It is to provide an air purifying device with an improved installation structure so that the

Another object of the present invention is to provide an air purifier having a structure in which the air and the washing water can be separated more effectively by a relatively simple configuration after the sprayed washing water flows in sufficient contact with the air. Another object of the present invention is to provide an air purifier having a structure that can effectively sterilize harmful microorganisms such as viruses and bacteria in the air.

In order to achieve the above object, an air purifying device according to the present invention includes an air suction unit, a washing water contact unit that sprays washing water into the air sucked from the air suction unit to contact the air and washing water, and the washing method. A cyclone separator for collecting air and washing water mixed with each other at the lower side of the water contacting part to separate purified air, an air discharge part for discharging the air separated from the cyclone separator, and cleaning discharged from the cyclone separator It is characterized in that it comprises a washing water collection unit in which the water is collected.

In addition, in the present invention, the air discharge unit is divided by a first bottom plate and located below the washing water contact part, and the cyclone separation unit is divided by a second bottom plate and located below the air discharge unit, and the first A discharge path is formed in the bottom plate and extends through the air outlet and the second bottom plate, so that air and washing water enter the inlet of the cyclone separator together, and at the center of the upper end of the cyclone separator on the second bottom plate Another feature is that the installed outlet is installed so that the air separated from the cyclone separation unit is upwardly discharged into the air discharge unit.

In addition, in the present invention, washing water flows in from the washing water collection unit, ozone and radical substances generated by plasma are mixed in the washing water to generate sterilizing water, and the generated sterilizing water is used as washing water for the washing. It is another feature to further include a sterilizing water generator for supplying to the water contact portion.

In addition, in the present invention, in the cyclone separation unit, a locking mesh is installed along the periphery on the inner circumferential surface of the inner space, so that particles in the rotating and flowing air are collected in the locking mesh, and the number of washing water introduced together with the air is collected in the locking mesh. Another feature is to wash the particles caught in the water and flow it downward.

In addition, the present invention, in the cyclone separation unit, the mixed air and washing water enters in a biased manner to induce rotational flow in the inner space, it is another feature that a plurality of inlets are equally installed along the circumference.

In addition, in the present invention, the sterilizing water generating unit generates sterilizing water by mixing in water a plasma processor that generates ozone and radical substances by plasma-treating air, and air in which ozone and radical substances are generated in the plasma processor. A gas mixer, a sterilizing water storage tank for temporarily storing the sterilizing water generated by the gas mixer, and a supply pipe for supplying the sterilizing water from the gas mixer to the sterilizing water storage tank, wherein the supply pipe is directed downward from the upper side of the water surface A connection path that is a pipe extending up and down into Another feature is that by including a supply outlet facing the side for discharging, the sterilizing water falls into the mixing pocket before being discharged to the supply outlet to further mix the sterilizing water with ozone and radical substances.

The present invention is made of a stacked structure of an air intake unit, a cyclone separation unit, and an air discharge unit, and after allowing sufficient contact between the air flowing in from the air intake unit and the washing water, the air and the washing water in the cyclone separation unit It is structured so that the separation of

Accordingly, after the removal of harmful particles in the air is made more effective, the air and the washing water droplets can be separated, and such an effect can be achieved by a simple configuration.

In addition, the present invention is provided with a sterilizing water generator, and the sterilizing water is sprayed and circulated as washing water, so that the sterilization action on harmful microorganisms such as viruses and bacteria in the air can be effectively achieved.

In addition, the present invention has a hooking mesh on the inner circumferential surface of the cyclone separator, and the particles in the air caught in the hooking mesh act so that the washing water drops can be washed away. By more effectively separating the particles, it is possible to increase the purification efficiency of removing fine particles in the discharged air, and also to minimize the droplets of the washing water contained in the purified and discharged air.

1 is a configuration explanatory diagram of a conventional air purifier;
2 is a configuration explanatory diagram showing the overall configuration of an air purifier according to an embodiment of the present invention;
3 is a cross-sectional configuration diagram illustrating the configuration of a cyclone separation unit in the air purification apparatus according to an embodiment of the present invention;
4 is a configuration explanatory diagram showing the configuration of the inlet of the cyclone separation unit in the air purification apparatus according to the embodiment of the present invention;
5 is an explanatory diagram illustrating the operation in a configuration in which a single inlet is installed in the cyclone separation unit in the air purification device according to the embodiment of the present invention;
6 is a configuration explanatory diagram showing in more detail the configuration of the sterilizing water generator in the air purification apparatus according to the embodiment of the present invention;
7 is an explanatory diagram illustrating the action of the mixing pocket of the sterilizing water generator in the air purifying device according to the embodiment of the present invention;
8 is a test result image showing a state in which bacteria are cultured in the washing water before being introduced into the sterilizing water generator;
Figure 9 (a) is a test result image of culturing bacteria in the sterilized water discharged to the supply outlet after operating the device in a configuration in which the device is configured as shown in FIG. 6 but the mixing pocket is not installed.
Figure 9 (b) is a test result image of culturing bacteria in the sterilized water discharged through the supply outlet after operating the device configured as shown in Figure 6 including the mixing pocket

An embodiment of the present invention will be described in more detail with reference to the drawings.

Referring to FIG. 2 , the air purifying device according to the embodiment of the present invention includes an air suction unit 10 and a washing water in which the air and the washing water are in contact by spraying the washing water into the air sucked in the air suction unit 10 . Separation from the water contact part 20, the cyclone separator 30 that collects air and washing water mixed with each other at the lower side of the washing water contact part 20 and separates the purified air, and the cyclone separator 30 It includes an air discharge unit 40 for discharging the exhausted air, and a washing water collection unit 50 for collecting the washing water discharged from the cyclone separation unit 30 .

The air intake unit 10 and the air discharge unit 40 are parts in which external air to be purified is introduced into the air purifier and is purified and then discharged.

A suction fan 11 is installed in the air suction unit 10 to suck air, and a flow pressure flowing from the washing water contact unit 20 to the cyclone separation unit 30 may be generated.

The washing water contact unit 20 sprays the washing water to the sucked air to actively contact the air and the washing water.

To this end, the washing water contact portion 20 has a spray nozzle 22 for spraying cleaning water, and a polling filling layer located below the spray nozzle 22 so that the sprayed cleaning water and air can contact more widely ( 24) is installed.

The spray nozzle 22 allows the number of fine particles to be sprayed and uniformly mixed with the flowing air.

The air sucked in from the air intake unit 10 flows down to the polling filling layer 24 in a state of being mixed with the washing water sprayed while flowing in the washing space of the washing water contact unit 20 and passes between numerous pawls. In the process, a wide range of contact between the washing water and the air is made, so that particles and bacteria in the air can be collected in the washing water.

Since the polling filling layer 24 is for a wide contact between the washing water and air, it may be replaced with a porous block structure, a mesh block, or a porous structure used as a demister.

A first bottom plate 25 is installed on the lower side of the Pauling filling layer 24 to separate the washing water contact part 20 from the air outlet part 40 on the lower side thereof, and the bottom of the air outlet part 40 has a second The bottom plate 45 is installed to be separated from the cyclone separation unit 30 on the lower side.

That is, the air outlet 40 is separated by the first bottom plate 25 and located below the washing water contact part 20 , and the cyclone separator 30 is separated by the second bottom plate 45 and air A laminated structure is formed so as to be located below the discharge part 40 .

In this stacked structure, the most efficient spatial arrangement is formed in consideration of the effect that air and washing water are introduced from the side to the cone-shaped cyclone separation unit 30 and the separated air is discharged upward.

The cyclone separation unit 30 is a part that collects air and washing water mixed with each other at the lower side of the washing water contact unit 20 to separate the purified air.

The cyclone separation unit 30, like a conventional cyclone separation device, has a cone shape (conical shape) that gradually decreases in diameter as it goes downward, and after a downward spiral motion in which the air gradually decreases in diameter, the particles ride on the slope of the inner circumferential surface It is discharged to the lower side, and the air flows upward from the central part, and the separation action is made to be discharged to the upper side.

In the cyclone separation unit 30 of this embodiment, a discharge path 31 is formed on the first bottom plate 25 so that the air and washing water passing through the polling filling layer 24 of the washing water contact unit 20 flow downward. and the discharge path 31 is connected to the inlet 35 of the cyclone separator 30 so that air and washing water enter the cyclone separator 30 at a predetermined flow pressure.

The discharge path 31 is connected to the inlet 35 of the cyclone separation unit 30 by extending through the air discharge unit 40 and the second bottom plate (45).

The inlet 35 is installed to be deflected like a conventional cyclone separation device so that rotational flow occurs in the cone-shaped inner space 32 . For example, the inlet 35 is connected in a tangential direction to the inner space 32 of the cyclone separator 30 when viewed in a plan view so that the air and the washing water droplet rotate while entering.

The air and washing water entering the inlet 35 are introduced at a predetermined inlet pressure and speed by the suction fan 11 of the air intake unit 10, and the cone-shaped inner space 32 of the cyclone separation unit 30 is provided. The downward flow can be made in a spiral trajectory.

The washing water flowing into the inlet 35 is mixed with air in the form of water droplets and flows together with the air, and some of it may be in a state of flowing down along the inner circumferential surface of the inner space 32 of the cyclone separation unit 30. .

In the inner space 32 of the cyclone separation unit 30, as the air and the washing water droplets spiral downward together, the heavy water droplets come in contact with the inner peripheral surface and flow down, and the air rises through the central part after the downward spiral motion, so that the air discharge unit 40 may leak to the side.

That is, since the outlet 37 installed in the upper center of the cyclone separation unit 30 is installed on the second bottom plate 45 , the air separated from the cyclone separation unit 30 rises into the air discharge unit 40 . The fine water droplets are finally removed from the demister 43 installed at the outlet of the air discharge unit 40 and then discharged to the outside.

On the other hand, in this embodiment, a mesh that is caught along the periphery of the inner circumferential surface of the inner space 32 so that contaminant particles and washing water droplets in the air to be purified can be more effectively separated and discharged from the cyclone separation unit 30 . (34) is installed.

Referring to FIG. 3 , the engaging mesh 34 is woven in a mesh shape by a fine wire and is attached to the inner circumferential surface of the cone-shaped inner space 32 , and air and washing water droplets spiral downward together while contamination in the air. The particles and water droplets of the washing water are caught by the engaging mesh 34 and are collected.

If only air having contaminant particles flows in the cyclone separation unit 30 and the separation action is performed, the contaminant particles are collected in the catching mesh 34 and then cannot be discharged to the lower side by the catching mesh 34 . As the accumulation continues, the separation efficiency of airborne contaminants will decrease over time.

However, in the present invention, since the air and the washing water droplet enter and flow together into the inner space 32 of the cyclone separator 30 in a mixed state, the contaminant particles and water droplets in the air caught by the hooking mesh 34 and collected. Silver, the continuously supplied water droplets accumulate, wash the particles from the catching mesh 34, and serve to flow to the lower side.

Accordingly, contaminant particles or water droplets in the air caught in the engaging mesh 34 may be continuously removed without being accumulated in the engaging mesh 34 , and the inflow into the internal space 32 through the inlet 35 is air and In addition to the form of water droplets flowing together, the washing water can be introduced and flowed down, and the washing water is pushed by the air flowing in at a predetermined speed and wets the inner space 32 of the cyclone separator 30 to a predetermined angle range. And, accordingly, it can also serve to wash off the contaminant particles caught in the engaging mesh (34).

Referring to FIG. 4, in this embodiment, the washing water or water droplets of the washing water can smoothly wash the contaminant particles caught in the engaging mesh 34 from the entire circumference of the inner space 32 of the cyclone separator 30, It is preferable that a plurality of inlets 35 that allow the mixed air and washing water to enter in a biased manner to induce rotational flow in the inner space 32 are equally installed along the circumference.

Since a plurality of inlets 35 are equally installed along the circumference, washing water or washing water droplets can be wetted while being pushed by air that starts spiral flow to wet the engaging mesh 34, as shown in FIG. 5 , a single inlet port Compared to the case in which the 35 is installed, as shown in FIG. 4 , a plurality of inlets 35 are installed, thereby uniformly washing the entire 360 degrees.

In addition, although the present embodiment shows that the cyclone separation unit 30 is installed as a single structure, a plurality of cyclone separation units 30 having the same structure and small size are arranged in parallel with each other, each washing water contacting unit It may be configured to introduce mixed air and washing water from ( 20 ), and it may be configured to perform the above-described actions in each of the cyclone separation units ( 30 ).

Meanwhile, referring to FIG. 2 , the washing water collecting unit 50 is located below the cyclone separating unit 30 and the washing water discharged from the cyclone separating unit 30 is collected.

The washing water collection unit 50 is a storage tank such as a water tank, and receives and temporarily stores the washing water falling through the separated material outlet 38 at the bottom of the cyclone separation unit 30 .

In the separated material outlet 38 of the cyclone separation unit 30, the washing water and the particles separated from the air are mixed and dropped, and the collected washing water is in a state in which fine particles, viruses, bacteria, etc. are mixed.

In order to purify the washing water of the washing water collecting unit 50 by ozone and radical substances, it further includes a sterilizing water generating unit 60 .

2 and 6, the sterilizing water generating unit 60 generates sterilizing water by mixing ozone and radical substances generated by plasma with the washing water of the washing collecting and collecting unit 50 in water, and the generated The sterilizing water is re-introduced into the washing water collection unit 50 as washing water or supplied to the spray nozzle 22 of the washing water contact unit 20 to circulate.

In the above, the generation of sterilizing water means recovering the used sterilizing water sprayed from the spray nozzle 22 and then mixing ozone and radical substances to restore the properties of the sterilizing water and regenerate it.

Sterilization water refers to water having the ability to not only sterilize by mixing ozone and radical substances generated by plasma in water, but also to contact and destroy viruses and bacteria.

For reference, reference numerals 23a and 73 in FIG. 2 are pumps for circulating sterilizing water as washing water.

Referring to FIG. 6 , the sterilizing water generating unit 60 includes a plasma processor 61 that plasma-treats air to generate ozone and radical substances, and the air in which ozone and radical substances are generated in the plasma processor 61 . A gas mixer 62 for generating sterilizing water by mixing in water, a sterilizing water storage tank 63 for temporarily storing the sterilizing water generated by the gas mixer 62, and sterilizing the sterilizing water from the gas mixer 62 It includes a supply pipe 65 for supplying to the water storage tank (63).

The plasma processor 61 is provided with a discharge electrode 61c and a counter electrode 61d connected to a power source 61b with a dielectric tube 61a interposed therebetween. The air reacted with the plasma is generated and discharged as an active gas containing ozone and OH radicals.

The gas mixer 62 uses the principle that the flow rate increases and the pressure decreases while the sterilizing water passes through the narrow neck portion 62a having the same structure as the venturi tube. The gas supply tube 68 connected to the neck portion 62a is connected, and the gas The supply pipe 68 is connected to the plasma processor 61 so that an active gas such as ozone is naturally introduced into the sterilizing water for mixing.

In the gas mixer 62, the sterilizing water of the sterilizing water storage tank 63 flows and passes by the pump 64 and the pumping pipe 69, and in the process of passing through the neck portion 62a of the gas mixer 62, the sterilizing water Ozone and radical substances are naturally introduced and mixed, and the circulation of falling into the sterilizing water storage tank (63) is made.

The sterilizing water storage tank 63 is a water tank located below the gas mixer 62 , and is a part in which the sterilizing water generated in the gas mixer 62 falls and is temporarily stored.

In addition, the sterilizing water stored in the sterilizing water storage tank 63 is re-introduced into the washing water collection unit 50 as washing water or is supplied to the spray nozzle 22 of the washing water contact unit 20 to circulate.

The supply pipe 65 is a pipe for supplying sterilizing water generated by mixing ozone and radical substances in the gas mixer 62 to flow into the sterilizing water storage tank 63 .

The supply pipe 65 is connected to a connection path 65a, which is a pipe extending vertically from the upper side of the water surface to the lower side, and the connection path 65a in the vertical direction, and further from the lower end of the connection path 65a to the lower side. It includes an extended mixing pocket 65b, and a supply outlet 65c facing in the lateral direction to discharge the sterilizing water to the sterilizing water storage tank 63 at the location where the connection path 65a and the mixing pocket 65b meet. .

The connection path 65a is a pipe extending up and down and corresponds to a part of the pipe that induces the sterilizing water flowing from the gas mixer 62 to fall vertically.

Referring to FIG. 7 , since the sterilizing water falling in the vertical direction through the connection path 65a falls into the mixing pocket 65b before being discharged to the supply outlet 65c, vigorous mixing of the sterilizing water in the mixing pocket 65b The action is made and it rises again and is discharged to the supply outlet (65c).

That is, before the sterilizing water is discharged to the supply outlet 65c, it falls from the connecting path to the mixing pocket by gravity to further mix the sterilizing water with the active material including ozone.

Accordingly, ozone and radical substances mixed in water are additionally vigorously mixed with water molecules of sterilizing water by the drop impact of the sterilizing water falling by gravity, ozone, air bubbles containing radical substances, bacteria in water, etc. contact is also active.

In addition, when the sterilizing water is discharged to the sterilizing water storage tank 63 through the supply outlet 65c on the upper side of the mixing pocket 65b, a violent flow is already made in the mixing pocket 65b and is decelerated and discharged laterally, so sterilization Since the disturbance of the flow in the water storage tank 63 can be alleviated or minimized, ozone in the form of microbubbles does not diffuse into the water, but rises to the surface and can be easily removed.

This can minimize the inclusion of harmful ozone bubbles in the sterilizing water re-introduced into the washing water collection unit 50 as washing water or supplied to the spray nozzle 22 of the washing water contact unit 20 .

8 shows a state in which bacteria are cultured in the washing water before being introduced into the sterilizing water generator 60 to obtain the test result of FIG. 9 .

In addition, (a) of FIG. 9 is a test of culturing bacteria in the sterilized water discharged to the supply outlet 65c after operating the device in a configuration in which the device is configured as shown in FIG. 6 but the mixing pocket 65b is not installed. The result, (b) of Figure 9 is a test result of culturing bacteria in the sterilized water discharged to the supply outlet (65c) after operating the device in the device configured in the same manner as in Figure 6, including the mixing pocket (65b). .

Referring to (a) and (b) of Figure 9, ozone and radical substances mixed in water by the mixing pocket 65b are additionally vigorously mixed with the sterilizing water, so that in the configuration in which the mixing pocket 65b is installed. It can be seen that it exhibits a high sterilization effect.

Although the preferred embodiment of the present invention has been described above, the above embodiment is only one embodiment within the scope of the technical spirit of the present invention, and for those skilled in the art, within the technical spirit of the present invention Of course, other modified implementations are possible.

10; air intake 11; suction fan
20; Washing water contact portion 22; spray nozzle
23a,64,73; pump 24; Pauling filling layer
25; first bottom plate 30; Cyclone Separation Unit
31; drain 32; inner space
34; jamming mesh 35; inlet
37; outlet 38; Separation outlet
40; air outlet 43; demister
45; second bottom plate 50; washing water collection unit
60; sterilization water generator 61; plasma processing machine
61a; dielectric tube 61b; everyone
61c; discharge electrode 61d; counter electrode
62; gas mixer 62a; neck
63; sterile water reservoir 65; supply pipe
65a; Link 65b; mixing pocket
65c; supply outlet 68; gas supply pipe

Claims (6)

air intake and
A washing water contacting part that sprays washing water into the air sucked in from the air suction part to contact the air and the washing water;
a cyclone separation unit for collecting air and washing water mixed with each other at the lower side of the washing water contact unit to separate purified air;
an air discharge unit for discharging the air separated by the cyclone separation unit;
and a washing water collection unit in which the washing water discharged from the cyclone separation unit is collected,
In the cyclone separation unit,
By installing a locking mesh along the periphery of the inner circumferential surface of the inner space, particles in the rotating and flowing air are collected in the locking mesh, and the water droplets introduced with the air wash the particles caught in the locking mesh and flow downward. air purifier with According to claim 1,
The air discharge part is divided by a first bottom plate and is located below the washing water contact part,
The cyclone separation part is divided by a second bottom plate and is located below the air exhaust part,
A discharge path is formed in the first bottom plate and extends through the air discharge unit and the second bottom plate, so that air and washing water enter the inlet of the cyclone separation unit together,
An outlet installed in the center of the upper end of the cyclone separator is installed on the second bottom plate, and the air separated from the cyclone separator is upwardly discharged into the air outlet. According to claim 1,
Washing water flows in from the washing water collection unit, ozone and radical substances generated by plasma are mixed in the washing water to generate sterilizing water, and the generated sterilizing water is supplied to the washing water contact part as washing water. Air purification device, characterized in that it further comprises a water generator delete According to claim 1,
In the cyclone separation unit,
Air purification device, characterized in that a plurality of inlets are equally installed along the periphery so that the mixed air and washing water enter in a biased manner to induce rotational flow in the inner space. 4. The method of claim 3,
The sterilization water generator,
A plasma treatment device that plasma-treats air to generate ozone and radical substances;
a gas mixer for generating sterilization water by mixing ozone and air in which radical substances are generated in the plasma treatment machine in water;
a sterilizing water storage tank for temporarily storing the sterilizing water generated in the gas mixer;
A supply pipe for supplying the sterilization water of the gas mixer to the sterilization water storage tank,
The supply pipe is
a connecting path that is a pipe extending vertically from the upper side of the water surface to the lower side;
A mixing pocket connected to the connecting path in the vertical direction and further extending downward from the lower end of the connecting path;
By including a supply outlet facing in the lateral direction for discharging the sterilizing water to the sterilizing water storage tank at a position where the connection path and the mixing pocket meet,
Before the sterilizing water is discharged to the supply outlet, it falls into the mixing pocket to further mix the sterilizing water with ozone and radical substances.

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