JP2008279328A - Wall surface cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall surface cleaning device capable of efficiently removing microallergens as antigens of pollen, house dust, etc. sticking to the wall surface. <P>SOLUTION: The lower part of a device body 10 of the wall surface cleaning device keeps a frame 30 connected through a connecting pipe 20, and a dust collection filter 13 and a motor 14/a fan 15 as blower/suction means arranged inside the device body 10. In addition, the frame 30 has a blow-off part 50 for blowing air off to the wall surface and a suction part 60 for sucking the internal air of the frame 30. The blow-off part 50 is formed in such a state that a number of blow-off nozzles 51 are aggregated. Besides, the peripheral edge part 31 of the frame 30 is formed of a pliable material, and the peripheral edge part 31 can be brought into contact with the wall surface almost airtightly. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wall surface purification apparatus capable of removing pollen and the like attached to a wall surface in a room.

  In recent years, the number of patients with hay fever has been increasing year by year, and the Ministry of Health, Labor and Welfare estimated the number of people with hay fever in 1998 as 16% of the population, and it is considered that the number is increasing further.

  Pollen allergy is caused by an allergic reaction caused by pollen, but pollen is floating in the atmosphere throughout the year, and pollen floating in the air adheres to clothes and laundry. It was brought into the room by ventilation of the building. Therefore, as a countermeasure against hay fever, it is necessary to remove pollen brought into the room as much as possible.

  Conventionally, in order to cope with pollen brought into the room, it has been removed by an air purifier. In addition, the pollen is captured by a dust filter by sucking indoor air, and the captured pollen. Has been proposed (see Patent Document 1), and allergens such as pollen are sprayed by spraying water vapor and hot air. An allergen inactivation device has been proposed (see Patent Document 2).

  In addition, in order to remove overspray powder adhering to the inner wall surface of the electrostatic powder coating booth, an air blow nozzle that blows air toward the inner wall surface of the booth and a suction hood connected to a suction duct are provided. A wall surface cleaning device for an electrostatic powder coating booth has been proposed (see Patent Document 3).

JP-A-6-154298 JP-A-7-250604 JP 2000-176336 A

  However, the method using the air cleaner and the techniques proposed in Patent Documents 1 and 2 can remove pollen floating in the air or inactivate pollen, but pollen adhered to the wall surface. Could not be removed. In particular, when a porous wall covering material is used for the wall surface, it is difficult because pollen enters the pores of the wall surface.

  Moreover, although the wall surface cleaning apparatus proposed in Patent Document 3 cleans the wall surface, the object to be removed is overspray powder in electrostatic powder coating, and the cleaning apparatus and the wall surface cannot be in close contact. It was not applicable to pollen removal.

  An object of the present invention is to solve the above-described problems and to provide a wall surface purification apparatus that can efficiently remove fine allergens such as pollen and house dust attached to the wall surface.

  The wall surface purifying apparatus according to claim 1 is a frame body that abuts against the wall surface, a blow-out portion that is provided in the frame body and blows air onto the wall surface, and a suction unit that is provided in the frame body and sucks air in the frame body. And a blowing unit for blowing air from the blowing unit, a suction unit for sucking air in the frame body from the suction unit, and a dust collecting unit for capturing minute objects in the air sucked by the suction unit. It is configured as a feature.

  The wall surface purifying apparatus according to claim 2 is characterized in that the peripheral edge portion of the frame body is formed flexibly so as to come into contact with the wall surface in a substantially tight contact state.

  The wall surface purifying apparatus according to claim 3 is characterized in that the blowout portion is formed of a plurality of blowout nozzles, and the blowout nozzle group is disposed at substantially the center of the frame.

  The wall surface purifying apparatus according to claim 4 is characterized in that the blow-out portion is formed from a plurality of blow-off nozzles, and the blow-off nozzle group is disposed on the periphery of the frame body.

  In the wall surface purifying apparatus according to claim 5, the blow-out portion is formed from a large number of blow-out nozzles, the suction portion is formed from a large number of suction nozzles, and the blow-out nozzles and the suction nozzles are mixedly arranged. It is configured as a feature.

  The wall surface purifying apparatus according to claim 6 is characterized in that the diameter of the outlet of the outlet nozzle is 0.1 to 1.5 mm.

  The wall surface purification apparatus according to claim 7 is characterized in that the blowout nozzle is arranged so that air can be blown obliquely with respect to the wall surface when the frame body comes into contact with the wall surface. Yes.

  According to the wall surface purifying apparatus of the first aspect, the blow-off unit peels off fine allergens such as pollen and house dust attached to the wall surface by blowing air on the wall surface, and scatters and floats in the frame. The suction part sucks and removes fine allergens scattered and suspended by the blowing part by sucking air in the frame. The fine allergen contained in the air sucked by the suction part is captured by the dust collecting part and does not flow outside.

  According to the wall surface purifying apparatus of the second aspect, since the peripheral edge of the frame is formed flexibly, the peripheral edge is deformed following the shape of the wall by pressing the frame against the wall. As a result, the substantially entire surface is in close contact with the wall surface. Therefore, the fine allergen that is peeled off from the wall surface does not come out of the frame body, and air hardly flows into the frame body from the outside, so that suction by the suction portion can be effectively performed. I can do it.

  According to the wall surface purification apparatus of the third aspect, since the blowout part is formed of a large number of blowout nozzles, the cross-sectional area of the air flow blown from the blowout nozzles is reduced, and the fine allergen adhering to the pores of the wall surface is effective. Can be peeled off. Moreover, since the blowing nozzle group is disposed at the approximate center of the frame, air can be blown in a concentrated manner, and fine allergens can be effectively peeled off.

  According to the wall surface purification apparatus of the fourth aspect, similar to the second aspect, the fine allergen can be effectively peeled off by the blowout nozzle, and the blowout nozzle group is disposed on the periphery of the frame body. Therefore, by moving the frame, it is possible to purify a large area wall at a time.

  According to the wall surface purifying apparatus of the fifth aspect, as in the second aspect, the fine allergen can be effectively peeled off by the blow-out nozzle, and the suction part is formed from a large number of suction nozzles. Since the nozzle and the suction nozzle are mixedly arranged, the frame can be downsized.

  According to the wall surface purification apparatus of the sixth aspect, since the diameter of the outlet of the outlet nozzle is 0.1 to 1.5 mm, the fine allergen adhering in the pores of the wall surface can be effectively peeled off. .

  According to the wall surface purification apparatus of the seventh aspect, since the blowing nozzle is arranged so that air can be blown obliquely with respect to the wall surface when the frame body is in contact with the wall surface, the blown air The flow strikes the fine allergen diagonally and can be effectively separated.

  In the wall surface purification apparatus of the present invention, the blowout part and the suction part are provided in the frame. The frame body covers the wall surface in a substantially airtight manner and shields it from the outside, so that it can be sucked effectively and the fine allergen floating in the frame body is not scattered outside the frame body.

  The peripheral edge of the frame (the part that abuts against the wall surface) is flexibly formed so as to abut against the wall surface in a substantially tight contact state. In use, the material is moved on the wall surface in a state where the peripheral edge portion is in pressure contact, and therefore, it is preferable that the material is slippery, has excellent wear resistance, and does not damage the wall surface. In order to form such a peripheral edge portion, for example, a resin material such as foamed urethane rubber, silicon rubber, natural rubber, butadiene rubber, or the like can be formed into a brush-like form in which the peripheral edge portion is flocked. .

  The blowing part blows air onto the wall surface, and the suction part sucks air inside the frame. The blowing part and the suction part are provided around the blowing part in the frame, and the suction part In contrast, the suction portion may be provided at the center, the blowing portion may be provided around the suction portion, the blowing portion and the suction portion may be alternately provided, or may be provided so as to be mixed.

  The blower outlet end face of the blowout part is disposed so as to be located with a slight gap inward from the peripheral edge of the frame body, i.e., when the wall surface purification device is used, the blower outlet end face is slightly spaced from the wall face. It is designed to be positioned with a gap. The interval between the outlet end face and the wall surface is usually preferably 5 to 70 mm, more preferably 10 to 50 mm. If the distance is less than 5 mm, the air flow is too close to the wall surface, and the deposit cannot be effectively peeled off. Moreover, when it exceeds 70 mm, it will become difficult to maintain a wind force, and a deposit | attachment cannot be peeled effectively, and the enlargement of a frame will be caused.

  The temperature of the air blown from the blowout part should be 80 to 100 ° C. If it is the range of 80-100 degreeC, the effect | action which inactivates the fine allergen which could not be peeled can be anticipated, and the purification | cleaning of a wall surface can be implemented effectively.

  As for the speed of the air sprayed from a blowing part, 10-30 m / s is preferable. If it is less than 10 m / s, the fine allergen cannot be peeled off from the wall surface, and if it exceeds 30 m / s, the adhesion between the wall surface and the peripheral edge of the frame body is reduced by wind pressure, and the size of the apparatus is increased. .

  The spray part may have a relatively large outlet (several centimeters to several tens of centimeters), but is preferably formed by providing a large number of outlet nozzles having fine outlets. By forming with a large number of blowing nozzles, the fine allergen can be effectively peeled off. The diameter of the outlet of the outlet nozzle is preferably 0.1 to 1.5 mm, and more preferably 0.5 to 1.0 mm. If the diameter of the outlet is less than 0.1 mm, the air volume cannot be kept sufficiently, and if it exceeds 1.5 mm, it becomes difficult to maintain the wind force, and air is sent into the pores of the wall surface. I can't.

  The blowing nozzle group may be arranged at a substantially central portion of the frame body, may be arranged at the periphery of the frame body, or may be arranged in a state of being scattered at a predetermined interval. You may arrange | position in the state mixed with many suction nozzles. When arranged in the substantially central part of the frame, air can be blown in a concentrated manner, so that fine allergens can be effectively peeled off. The area can be purified at a time, and when mixed with a suction nozzle, the apparatus can be downsized. The suction port of the suction nozzle may be the same size as the blower nozzle, but it is preferable that the suction port is larger and the number of suction nozzles is more than the number of blower nozzles.

  In the case where the blowing nozzle group is arranged at the substantially central portion of the frame body, the angle of the air blown from the blowing nozzle to the wall surface is not particularly limited, but it is preferable to blow obliquely with respect to the wall surface. The fine allergen can be effectively peeled off by spraying at an angle. This angle is preferably 20 to 80 degrees and more preferably 30 to 60 degrees with respect to the wall surface. If the angle is less than 20 degrees, air cannot be sent into the pores of the wall surface, and it becomes difficult to peel off the attached fine allergen. On the other hand, if it exceeds 80 degrees, the action of pressing fine allergens into the pores works, and it becomes difficult to peel off in the same manner. When the blowout nozzle is formed obliquely, it is preferable to reduce the suction portion located on the acute angle side of the blowout nozzle and increase the suction portion located on the obtuse angle side.

  Further, when the blowing nozzle group is arranged at a substantially central portion of the frame body, and the diameter of the blowing nozzle of the blowing nozzle is 0.1 to 1.5 mm, the distance between the blowing nozzle end face and the wall surface is 5 to 70 mm is preferable, and 10 to 50 mm is more preferable.

  1st Embodiment of the wall surface purification apparatus by this invention is described with reference to FIGS. FIG. 1 is a schematic view showing the entire wall purification apparatus, FIG. 2 is a perspective view of the same upper frame body portion as viewed obliquely from below, FIG. 3 is a bottom view of the upper frame body portion, and FIG. It is a side view of the state pressed.

  In FIG. 1, reference numeral 10 denotes an apparatus main body of a wall surface purification apparatus. A frame body 30 is connected to a lower portion of the apparatus main body 10 via a connecting pipe 20, and a handle 40 is provided at an upper portion. An inner box body 11 is provided in the apparatus main body 10, and an opening 12 is formed in the upper portion of the inner box body 11, and a bag-like dust collection filter 13 serving as a dust collection section is formed in the opening 12. Is installed. In addition, a motor 14 and a fan 15 are provided below the dust collection filter 13 as a blowing unit and a suction unit.

  A blower pipe 16 that reaches the inside of the frame body 30 through the connecting pipe 20 is provided at the lower portion of the inner box body 11, and a tip portion of the blower pipe 16 serves as a blowout portion 50 that blows air onto the wall surface. . A space around the blowout portion 50 serves as a suction portion 60 that sucks air in the frame 30. Further, the space between the inner box 11 and the apparatus main body 10 and the space between the blower pipe 16 and the connecting pipe 20 serve as a suction path 17 for sending the air sucked from the suction section 60 to the dust collection filter 13. ing. Therefore, by driving the motor 14 and rotating the fan 15, the air is wiped from the blowing part 50 to the wall surface via the blower pipe 16, and the blown air is collected from the suction part 60 via the suction path 17. This is sent to the dust filter 13 and this is repeated.

  As shown in FIGS. 2 to 3, the blowing unit 50 is formed in a state in which a large number of blowing nozzles 51 are gathered, and is arranged at a substantially center of the frame body 30. The diameter of the blowing nozzle 51 is 0.1 mm. Therefore, when air is blown from the blowing part 50, an air flow having a small cross-sectional area is blown from each blowing nozzle 51. Moreover, the peripheral edge part 31 of the frame 30 is formed of a flexible material, and the peripheral edge part 31 can come into contact with the wall surface in a substantially tight contact state.

  In the wall surface purifying apparatus as described above, the handle 40 is gripped and moved while pressing the frame body 30 against the wall surface. Then, as shown in FIG. 4, the peripheral edge 31 of the frame 30 is pressed against the wall surface 70 while being deformed. Therefore, even if the wall 70 has a gentle unevenness due to wave processing, the peripheral edge 31 is uneven. Accordingly, the frame 30 is substantially in an airtight state. When the motor 14 is driven and the fan 15 is rotated in such a state, air is blown from the blowing nozzle 51 and air in the frame 30 is sucked from the suction portion 50. Therefore, the air blown from the blow nozzle 51 to the wall surface 70 enters the interior of the wall 70 at a sufficient wind speed so that the pollen adhering to the interior of the pore can be peeled off. At the same time, it is scattered to the suction part 60 in the frame 30. Then, it is sent from the suction part 60 to the dust collecting filter 13 via the suction path 17 and captured and held.

  A second embodiment of the wall surface purification apparatus according to the present invention will be described with reference to FIG. FIG. 5 is a bottom view of the frame portion of the wall surface purification apparatus. In the second embodiment shown in FIG. 5, the arrangement of the blowing nozzles is provided on the peripheral edge of the frame, and the other configurations are substantially the same as those in the first embodiment. That is, the blowing nozzles 51 are arranged at a predetermined interval on the peripheral portion of the frame body 30, and the inside of the annular blowing nozzle 51 group is a suction portion 60. The blowout nozzle 51 is collected at the center of the frame 30 and connected to a connecting pipe (not shown).

  A third embodiment of the wall purification apparatus according to the present invention will be described with reference to FIG. FIG. 6 is a bottom view of the frame portion of the wall surface purification apparatus. The third embodiment shown in FIG. 6 is a mixture of blowing nozzles and suction nozzles, and other configurations are substantially the same as those of the first embodiment. In other words, the blowing nozzle 51 and the suction nozzle 52 are mixedly disposed on the entire inner surface of the frame body 30.

Next, the experiment which investigated the efficiency of pollen removal using the blowing part of the wall surface purification apparatus by this invention is demonstrated.
<Experimental equipment>
The experimental apparatus shown in FIG. 7 was used. In FIG. 7, 80 is a blowing member for blowing air, 90 is a specimen to which air is blown by the blowing member, and the distance between the blowing member 80 and the specimen 90 is 5 cm. This experimental apparatus is installed in a chamber (temperature 28 ± 1 ° C., relative humidity 50 ± 1%, ventilation frequency 0.5 ± 0.01 times / h) in which the temperature and humidity can be controlled.

<Experiment method>
The blowing member is moved along the surface of the specimen for 3 seconds, 5 seconds, and 7 seconds. In addition, air was blown onto the specimen 90 at two wind speeds of weak wind (10 m / s) and strong wind (20 m / s), and then the weight of the specimen was measured with an electronic balance (“AG204” manufactured by METTTLER TOLEDO). The weight of pollen removed by subtracting from the weight of the specimen before wiping was calculated (total of 6 modes with 3 types of movement time and 2 types of wind speed). The wind speed was measured with a hot wire anemometer (“6521” manufactured by KANOMAX).
Further, the above-described measurement was repeated for each of the blowing members A and B2 and the samples A and B2. Therefore, a total of 24 (6 × 2 × 2) measurement results were obtained.

<Blowout member>
Blowout member A: a cylindrical body having a diameter of 60 mm.
Blowout member B: 32 blowout nozzles having a diameter of 0.1 mm are bundled.
<Sample>
Specimen A: A plaster (0.13 g / cm ² ) is applied to one side of an aluminum plate (85 mm × 150 mm), and pollen is adhered to the plaster.
Specimen B: A diatomaceous earth (0.16 g / cm ² ) is coated (usually processed) on one side of an aluminum plate (85 mm × 150 mm), and pollen is adhered to the diatomaceous earth.

  In order to prepare a specimen, first, in order to prevent a change in the weight of the specimen due to a change in humidity in the atmosphere, the temperature and humidity can be controlled in a chamber (temperature 28 ± 1 ° C., relative humidity 50 ± 1%, ventilation frequency 0.5 In ± 0.01 times / h), pollen and aluminum plate coated with plaster or diatomaceous earth were housed and conditioned, and then the pollen was adhered to the plaster and diatomaceous earth.

  In addition, the weight before and after adhering pollen was measured with the electronic balance ("AG204" by METLER TOLEDO), and the weight of adhering pollen was computed.

<Result>
Changes in pollen adhesion weight are shown in FIGS.
In these charts, the white line on the left side shows the weight of pollen before blowing air, and the black line on the right side shows the weight of pollen after blowing air. Therefore, the difference obtained by subtracting the weight indicated by the black line from the weight indicated by the white line is the weight of the removed pollen.

FIG. 8 shows changes in the pollen adhesion weight when the blowing member A is used and air is blown onto the specimen A for 3 seconds, 5 seconds, and 7 seconds at a low wind speed and a strong wind speed, respectively.
FIG. 9 shows changes in the pollen adhesion weight when the blowing member B is used and air is blown onto the specimen A for 3 seconds, 5 seconds, and 7 seconds at low wind speed and strong wind speed, respectively.
FIG. 10 shows changes in the pollen adhesion weight when the blowing member A is used and air is blown onto the specimen B at a low wind speed and a strong wind speed for 3 seconds, 5 seconds, and 7 seconds, respectively.
FIG. 11 shows changes in pollen adhesion weight when the blowing member B is used and air is blown onto the specimen B for 3 seconds, 5 seconds, and 7 seconds at low wind speed and strong wind speed, respectively.

Next, the pollen removal rate derived from the above results is shown in FIGS.
In these charts, the white line on the left indicates the removal rate by the blowing member A, and the black solid line on the right indicates the removal rate by the blowing member B.

FIG. 12 shows the pollen removal rate when the specimen A is sprayed at a low wind speed.
FIG. 13 shows the pollen removal rate when the specimen A is sprayed at high wind speed.
FIG. 14 shows the pollen removal rate when the sample B is sprayed at a low wind speed.
FIG. 15 shows the pollen removal rate when the specimen B is sprayed at high wind speed.

  From the above results, it was confirmed that the blowing member B constituted by the blowing nozzle has a greater effect of removing pollen than the blowing member A. It was also confirmed that the greater the wind speed and the longer the time, the greater the effect of removing pollen.

  FIG. 16 is an image showing a state in which pollen particles of about 20 to 30 μm, which are fine allergens, are stopped in pores of a wall of about 60 μm, and FIG. It is an image figure.

Schematic of 1st Embodiment of the wall surface purification apparatus by this invention The schematic perspective view seen from diagonally downward of the frame part of 1st Embodiment of the wall surface purification apparatus by this invention The schematic bottom view of the frame part of 1st Embodiment of the wall surface purification apparatus by this invention The schematic side view of the state which press-contacted the frame part of 1st Embodiment of the wall surface purification apparatus by this invention to the wall surface The schematic bottom view of the frame part of 2nd Embodiment of the wall surface purification apparatus by this invention The schematic bottom view of the frame part of 3rd Embodiment of the wall surface purification apparatus by this invention Schematic diagram of equipment used in experiments to test pollen removal efficiency A chart showing changes in pollen adhesion weight when air is blown on specimen A for 3 seconds, 5 seconds, and 7 seconds at low wind speed and strong wind speed using blowing member A The chart which shows the change of the pollen adhesion weight when the blowing member B is used and air is blown on the specimen A for 3 seconds, 5 seconds, and 7 seconds at low wind speed and strong wind speed, respectively. Chart showing changes in pollen adhesion weight when blowing member A is used and air is blown onto specimen B for 3 seconds, 5 seconds, and 7 seconds at low and high wind speeds, respectively. Chart showing changes in pollen adhesion weight when blowing member B is used and air is blown onto specimen B for 3 seconds, 5 seconds, and 7 seconds at low and high wind speeds, respectively. Chart showing pollen removal rate when sprayed on sample A at low wind speed Chart showing pollen removal rate when sprayed on specimen A at high wind speed Chart showing pollen removal rate when sprayed on sample B at low wind speed Chart showing pollen removal rate when sprayed on specimen B at high wind speed Image diagram showing the state where fine allergens are stopped in the pores of the wall Image diagram showing the state where fine allergens peel from the pores of the wall

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Apparatus main body 11 Inner box body 13 Dust collection filter 14 Motor 15 Fan 16 Blower pipe 17 Suction path 20 Connection pipe 30 Frame body 31 Peripheral edge part 40 Handle 50 Blowout part 51 Blowout nozzle 52 Suction nozzle 60 Suction part 70 Wall surface

Claims (7)

A frame abutting against the wall surface, a blow-out portion provided in the frame body for blowing air to the wall surface, a suction portion provided in the frame body for sucking air in the frame body, and a blowing means for blowing air from the blow-out portion And a suction means for sucking air in the frame from the suction part, and a dust collecting part for capturing fine allergens in the air sucked by the suction part. The wall surface purification apparatus according to claim 1, wherein a peripheral edge portion of the frame body is formed flexibly so as to come into contact with the wall surface in a substantially tight contact state. The wall surface purification apparatus according to claim 1 or 2, wherein the blow-out portion is formed of a plurality of blow-out nozzles, and the blow-out nozzle group is disposed at a substantially center of the frame body. The wall surface purification apparatus according to claim 1 or 2, wherein the blow-out portion is formed of a plurality of blow-out nozzles, and the blow-out nozzle group is disposed on a peripheral edge of the frame body. The blowout portion is formed from a plurality of blowout nozzles, and the suction portion is formed from a plurality of suction nozzles, and the blowout nozzles and the suction nozzles are mixedly arranged. 2. The wall surface purification apparatus according to 2. The wall surface purification apparatus according to claim 3, 4 or 5, wherein a diameter of the outlet of the outlet nozzle is 0.1 to 1.5 mm. The wall surface according to claim 3, 4, 5, or 6, wherein the blowing nozzle is arranged so that air can be blown obliquely with respect to the wall surface when the frame body is brought into contact with the wall surface. Purification equipment.

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