KR200314830Y1 - Water and wastewater savable Automatic cleaning regeneration type air filter device using water and compressed air - Google Patents

Abstract

The present invention cleans and regenerates a mixed fluid mixed with water and compressed air by spraying a mixed fluid mixed with water and compressed air, and removes water remaining by compressed air spray by a nozzle after regeneration to prevent freezing, and mucus Spraying and coating to prevent dust re-spreading, and to maximize the filtration area to improve the filtration performance and reduce the amount of water used. will be.

The present invention for achieving the above object is a water supply means for supplying the stored water; Compressed air supply means for supplying high pressure air; An electric valve provided at each of the air supply means and the water supply means to control supply of air and water; A control unit for controlling the vibrating valve to control the supply amount of water and air at a predetermined ratio; Is installed on top of the air filter, the mixing fluid injection means for ejecting the mixed fluid mixed in the mixing unit is provided, and further comprises a slime supply means for supplying slime and an electric valve for controlling the slime supply means It is characterized by.

As described above, the present invention generates and uses a mixed fluid in which water and air are mixed at a predetermined ratio, thereby saving more than 60% of water compared to a washing process that relies only on water. There is an advantage that the generation of sewage after washing is reduced.

Description

Water and wastewater savable Automatic cleaning regeneration type air filter device using water and compressed air}

The present invention relates to a water and wastewater saving type automatic cleaning air filtration device using water and compressed air, and more specifically, cleaning by spraying a mixed fluid mixed with water and compressed air to remove foreign substances such as dust collected in a filter. And regeneration, to prevent freezing by removing residual water by compressed air spraying by the nozzle after regeneration, and to prevent the re-splash of dust by spraying and applying mucus, and also to increase the filtration area to improve the filtration performance and the amount of water used The present invention relates to a water and wastewater saving type automatic cleaning air filtration device using water and compressed air to reduce the amount of water.

Generally, industrial facilities such as subways, underground towers and factories, department stores, hospitals, and other business buildings are equipped with air purifiers to remove oil dust, moisture, and dust generated by the facilities and external inflows. Doing.

As such, the air purification filter is essentially provided with a plurality of air filters for collecting large dust or fine dust, and the air filters are often washed or replaced frequently to maintain the dust collection efficiency at a constant state. You have to manage it.

Conventional air filter cleaning methods include removing the air filter from the housing and cleaning or replacing the air filter itself.

However, the method of separating and cleaning the air filter has been cumbersome for humans to manually wash, and the method of replacing the air filter itself requires a lot of labor and purchasing costs. there was.

In addition, another conventional method for cleaning the air filter is a plurality of air filters 20 are installed inclined in front of the housing 10 of the air purification device as shown in Figure 1 and the washing water or detergent required for cleaning in the housing 10 Alternatively, there is a purifying device in which the washing water and the air supply pipe 40 communicating with the washing water and the air supply pipe 30 for supplying air are installed on each floor, and the washing water collection box 50 is provided on the side of the housing 10. .

However, the purification device has a problem that the amount of water used or the washing ability is low, there is a problem such as waste water treatment and freezing or is not available in a limited space.

The conventional method was cleaned by spraying the nozzle from the front, rear, or rear in the inclined state of about 40 °, but this is inclined to pass 100% of the 50 mm thick air filter by nozzle spraying the inclined surface. Due to the obstacles of the filter structure, only about one third of the total surface and thickness of the filter is transmitted, and the rest flows downward along the sloped surface by inertia. The upper part was used without washing, and the performance of the entire filter surface was lost, so it was difficult to continuously maintain the original performance of the filter.

The closer the cleaning surface is to horizontal, the greater the permeability of cleaning according to the law of inertia and gravity, which facilitates the cleaning ability of pollutants with 100% permeability, eliminating a lot of air pollution or maintaining the original performance of filters even after long-term use. Becomes possible.

Among the existing methods, there is a method of cleaning only the inclined rear surface or cleaning the front and rear surface separately, but the former is difficult to maintain the filter performance due to the lack of cleaning ability and requires a separate cleaning operation. The labor force and additional costs were incurred.

In the case of cleaning the front and rear separately, problems such as the accumulation of contaminants in the filter as the water is sprayed in the direction collected by the filter, consumption of water, addition of additional equipment, and insufficient cleaning ability Has been.

The present invention was devised to solve these problems, and since contaminated dust or dust is removed using a mixed fluid of water and air at a volume ratio, it is consumed when removing the contaminated dust or dust. The purpose of the present invention is to reduce the amount of water used and to improve the regeneration efficiency of the air filter by preventing re-splashing of dust collected in the air filter and removing dust or dust.

1 is a perspective view of a conventional air filter for air purification.

Figure 2 is a longitudinal sectional view showing a water and wastewater saving type automatic cleaning type air filtering device using water and compressed air according to the present invention.

Figure 3 is a schematic view showing a process of generating a mixed fluid of the water and wastewater saving type automatic cleaning air filter using the compressed air according to the present invention.

Figure 4 is a longitudinal cross-sectional view showing another embodiment of the water and wastewater saving type automatic cleaning air filtration device using water and compressed air according to the present invention.

FIG. 5 is an enlarged cross-sectional view showing a portion A of FIG. 4 in detail; FIG.

*** Description of the symbols for the main parts of the drawings ***

100: advanced water means 200: air supply means

300: slime supply means 400: control unit

500: air purifier 600: mixing nozzle

The present invention includes an air filter for collecting dust or dust, and an air filter for collecting dust or dust, comprising: water supply means for supplying stored water; Compressed air supply means for supplying high pressure air; An electric valve provided at each of the air supply means and the water supply means to control supply of air and water; A control unit for controlling the vibrating valve to control the supply amount of water and air at a predetermined ratio; It is installed on the top of the air filter, characterized in that composed of a mixed fluid injection means for ejecting the mixed fluid mixed in the mixing unit.

Hereinafter, with reference to the accompanying drawings, an embodiment according to the present invention in detail as follows.

Figure 2 is a longitudinal sectional view showing a water and wastewater saving type automatic cleaning air filtration device using water and compressed air according to the present invention. The air filter regeneration device is provided in multiple stages in the air purifier 500 to collect dust or dust, the air filter 510, water supply means 100 for supplying water, high pressure for supplying high-pressure compressed air The air supply means 200, the water supply means 100 and the air supply means 200, respectively provided in the electric valve 112, 212 to control the supply of air and water, to adjust the mixing ratio of the air and water Control fluid 400 for controlling the vibrating valve 112, 212 is installed in the upper portion of the air filter 510, the mixed fluid for ejecting the mixed fluid by the control of the second portion 400 It is composed of the injection means (240).

In addition, the slime supply means 300 for supplying the slime to the air filter 510 and an electric valve 312 for controlling the slime of the slime supply means 300, the electric valve 312 is a control unit ( Is opened and closed by the control of 400).

The slime supplied from the slime supply means 300 is ejected through the mixed fluid injection means 240 for injecting a mixed fluid of the water and air. At this time, the slime supply means 300 may be added to the steam supply means for supplying steam or may be replaced by steam supply means.

The water supply means 100 and the air supply means 200 are provided in the water supply means 100 and the air supply means 200, respectively, the electric valves 112, 212 for controlling the supply of air and water And controlling the vibrating valves 112 and 212 provided in the water supply means 100 and the air supply means 200 in the control unit 400 to adjust the supply amount of water and air to be supplied at a predetermined ratio. A mixed fluid mixed with each other is generated, and the mixed fluid is ejected to the mixed fluid injection means 240.

In addition, when the air filter 510 is regenerated through the mixed fluid injection means 240, the high pressure mixed fluid is ejected while moving to the left and right of the air filter 510, thereby collecting dust or dust collected in the air filter 510. The air filter 510 is regenerated by shaking off the back.

Dust or dust shaken by the mixed fluid spraying means 240 flows to one side of the contaminant induction part 530 provided at the bottom of the air filter 510, such as water injected, and flows to the lower end and flows to the lower end. The dust or dust that flows is collected in the pollutant receiver 520 provided in the inner lower end of the air purifier 500, such as water, and the dust or dust and water collected in the pollutant receiver 520 are separate. It is discharged to the outside by the processing unit of

3 is a schematic view showing a process of generating a mixed fluid of the water and wastewater saving type automatic washing type air filtering device using the compressed air according to the present invention, the water supply means 100 and air supply Opening the electric valve 112, 212 provided in the means 200, respectively, the air and water supplied through the water supply pipe 110 and the air supply pipe 210 is introduced into the air and water are mixed with each other and the air and water is The mixed mixed fluid is ejected by the mixed fluid injection means 240.

In this case, the electric valves 112 and 212 may supply air and water by controlling a predetermined amount, that is, a supply amount of air and water at a predetermined ratio, in the controller 400.

Sensor units 114 and 214 are respectively provided in the water supply pipe 120 and the air supply pipe 210 to measure air and water supply, and the sensor parts 114 and 214 measure pressure or flow rate. The information is transmitted to the control unit 400 and the control unit 400 controls the opening degree of the electric valves 112 and 212 based on the transmitted information to adjust the inflow of water and air.

In this case, the mixing ratio of water and air is preferably 2: 3 based on the input, and preferably 1: 1.5 to 1: 200, more preferably 1: 100 based on the flow rate.

According to the present invention, in order to clean the air filter, the air filter cleaning device is operated to regenerate the air filter 510 in the air purifier 500.

Then, the compressed water supply means 100 and the air supply means 200 are installed to open the electric valves 112, 212, respectively, which regulates the supply of air and water, and at this time, the electric valves 112, 212 are opened. The degree is controlled by the controller 400 so that the supply amount of water and air can be supplied at a ratio, and the supplied water and air are mixed with each other to generate a mixed fluid, and the generated mixed fluid is a mixed fluid injection means ( 240). Here, the mixed fluid injection means 240 is movable to the left and right, the high pressure mixed fluid is ejected from the rear end of the air filter 510, that is, the opposite side of the trapped dust is collected in the air filter 510 The air filter 510 is regenerated by a cleaning process to remove dust or dust.

The mixed fluid sprayed onto the air filter 510 by the mixed fluid spraying means 240 is accumulated dust or dust is accumulated in the pollutant receiving unit 520 by riding the pollutant guide unit 530 together with water. The mixed fluid is injected into the air filter 510 and the remaining water is sprayed with compressed air using the mixed fluid injecting means 240 to completely remove the remaining water, thereby reducing initial pressure loss and improving dust collecting ability. Let's do it. And since the water remaining in the air filter 510 is completely removed to prevent the air filter 510 is frozen in the winter.

Therefore, the method of injecting air to dry the remaining water uses the air of the air supply means 200, the control unit 400 to the electric valve 112 provided in the water supply means 100 Close and open only the electric valve 212 of the air supply means 200 to supply air, and the supplied air is ejected through the mixed fluid injection means 240 to dry the remaining water, and when the drying is completed, the air Air is shut off by closing the electric valve 212 of the supply means 200.

Therefore, the cleaning operation is continued by a repetitive operation. At this time, the regeneration operation of the air filter 510 continues for a predetermined time, and when the predetermined time elapses, the regeneration of the air filter is stopped. When the regeneration of the air filter 510 is completed, the electric valves 112 and 212 are blocked by the controller 400 to control the supply of air and water.

Then, after opening the electric valve 312 installed in the slime supply pipe 310 connected to the slime supply means 300 by the control of the control unit 400 to eject the slime to the mixed fluid injection means 240 It is applied to the air filter 510. At this time, by applying the mucus to the air filter 510, the structure of the air filter 510 becomes more dense, improving the filtration efficiency, increasing the amount of dust retention, and also applying the viscous mucus to the air filter 510 As a result, when the air purifier 500 is operated, dust or dust collected in the air filter 510 may be prevented from being scattered again and used in a backflow environment.

When the air regeneration operation is completed by completing the process of spraying and applying the slime to the air filter 510, the air purifier 500 operates normally again, and the air filter regeneration operation is repeated every predetermined period.

Figure 4 shows another embodiment of the present invention, and has a separate slime injection means 320 for ejecting the slime supplied from the slime supply means 300 to apply the slime to the air filter 510 The electric valve 312 provided in the slime supply means 320 is opened and closed under the control of the controller 400. This is the same as the former operating relationship.

FIG. 5 shows part A of FIG. 4, wherein water and air supplied from the water supply means 100 and the air supply means 200 are mixed to move the mixed fluid as a mixed fluid injection means. It relates to a mixed fluid nozzle 600 for supplying through one nozzle. Two supply parts 610 and 620 are formed at one side of the mixed fluid nozzle 600, and the water supply pipe 110 connected to the water supply means 100 is fastened to one supply part 610, and the other to the other supply part 610. The air supply pipe 210 connected to the air supply means 200 is fastened to the supply part 620, and water and air are introduced into the other parts of the supply parts 610 and 620 to be discharged to the mixed fluid injection means 240. Discharge part 630 for supplying is provided.

In the present invention, the air filter is preferably used to be horizontal, but the air filter may be used to arbitrarily adjust the inclination angle.

For reference, in the cleaning process using a mixed fluid using water and compressed air, the mixing ratio of water and compressed air is preferably 2: 3, preferably 1: 1.5 to 1: 200 based on the flow rate, and more preferably. Is sprayed with a mixed fluid having a ratio of 1: 100 to remove dust or dust collected in the air filter. At this time, the amount and pressure of the washing water used is 5.0 L / min, one nozzle, 2.5 kg / ㎠, the amount and pressure of the compressed air is 500 L / min, 3.0 kg / ㎠.

In the drying process by compressed air injection, only the air is sprayed from the two-fluid nozzle to remove water remaining in the air filter. The amount and pressure of the compressed air used are 500 l / min and 3.0 kg / cm 2.

Although the preferred embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains may devise the present invention without departing from the spirit and scope of the subject matter defined in the appended claims. It will be appreciated that various modifications or changes can be made.

As described above, the present invention generates and uses a mixed fluid in which water and air are mixed at a predetermined ratio, thereby saving 60% or more of water than the washing process that relies only on water. The generation of sewage after washing is reduced.

And because the regeneration of the air filter uses a mixed fluid of air and water, dust or dust during the regeneration work is collected in the contaminant receiving part provided at the bottom of the air purifier, and the collected contaminants are stored in a separate device. It is discharged to the outside to prevent the contaminated dust or dust remaining inside the air purifier.

In addition, after the air filter is cleaned, the water remaining in the air filter is dried with separate air to prevent the air filter from freezing in winter.

In addition, by applying mucus to the air filter after regeneration, the structure of the air filter becomes more dense, which improves the amount of dust retained and the filtration efficiency. Also, the viscosity of the mucus causes the dust or dust collected in the air filter to re-scatter and reflow. There is an advantage that can be used to prevent re-splash.

Claims (7)

In the air purifier comprising an air filter for collecting dust or dust, Water supply means for supplying water; Compressed air supply means for supplying high pressure air; An electric valve provided at each of the air supply means and the water supply means to control supply of air and water; A control unit which controls the vibrating valve to adjust the supply amount of water and air; Waste water saving type automatic cleaning type air filtration device using water and compressed air, characterized in that composed of a mixed fluid injection means for ejecting a mixed fluid of water and air mixed in the air filter. The method of claim 1, wherein the mixed fluid spraying means has a nozzle or a knife type to uniformly spray the mixed fluid while moving the front surface of the air filter from side to side. Air filtration system. 2. The automatic regeneration type air filter apparatus for purifying air according to claim 1, further comprising a slime supply means for supplying the slime and an electric valve for controlling the slime supply means. [4] The wastewater reduction type automatic cleaning air using water and compressed air according to claim 3, further comprising a mucus injection means for ejecting the mucus supplied from the mucus supply means on the rear surface of the air filter. Filtration device. 5. The water and wastewater saving type automatic cleaning air filtration device of claim 4, wherein the mixed fluid injection means is separated from or integrally formed with the slime injection means. The method of claim 1, further comprising a sensor unit for measuring the amount of air and water of the high pressure water and wastewater saving type automatic cleaning air filtering device using the compressed air. 7. The water and wastewater saving type automatic cleaning air filtration device of claim 6, wherein the sensor unit detects a pressure or a flow rate.