JP6288904B2 - Dust removal equipment - Google Patents

Description

  The present invention relates to a dust removing device that sprays a mist-like solution.

  Patent Document 1 discloses a dust removing device that ejects a mist-like solution in order to remove dust in the air. The dust removing device of Patent Literature 1 includes a cylindrical casing, a nozzle, a fan, and a tank. The casing is erected in the vertical direction and has openings at the upper end and the lower end. The nozzle and the fan are disposed in the casing. The nozzles are configured in two upper and lower stages, and the upper and lower nozzles each spray a mist-like solution having the same particle size downward. The tank is disposed below the casing. In the dust removing device of Patent Literature 1, air containing dust is sucked into the casing from the opening at the upper end of the casing by the intake air from the fan and the injection energy of the nozzle. Of the dust in the air sucked into the casing, the dust associated with the mist solution is removed from the air by adhering to the mist solution. The air from which the dust has been removed passes through the opening at the lower end of the casing and is then exhausted to the outside. The solution to which dust adheres falls below the casing. Among these, the solution that has passed through the opening at the lower end of the casing falls into the tank and is collected.

JP 2000-296307 A

  By the way, in the dust removal apparatus of patent document 1, when the particle size of a mist-like solution is small, there exists a possibility that the solution to which dust adhered may float or get on an air current and be discharged to the outside from the opening at the upper end of the casing. There is. In this case, since the solution to which dust adheres does not fall into the tank and is not collected, the dust collection rate is lowered.

  Moreover, when the particle size of the mist-like solution is large, the rate at which dust in the air associates with the mist-like solution is low. For this reason, the quantity of the dust adhering to the mist-like solution decreases, and the collection rate of the dust decreases.

  Moreover, in the dust removal apparatus of patent document 1, in order to operate a fan, it is necessary to provide an explosion-proof motor. For this reason, a high equipment cost is required. In addition, it takes a lot of work to remove the dust adhering to the motor.

  The present invention has been made in view of the above matters, and its purpose is to collect dust in the air at a high recovery rate, to reduce the equipment cost, and to reduce maintenance work. It is to provide a possible dust removal device.

  In order to achieve the above object, a dust removing device according to the present invention is provided in a vertical direction, and has a casing in which a first opening and a second opening are formed, and is disposed inside the casing and faces downward. A first nozzle and a second nozzle for injecting a mist-like solution, wherein the first opening is formed above the first nozzle and the second nozzle, and the second opening is formed by the first nozzle and the second nozzle. Formed below the second nozzle, the first nozzle is disposed below the second nozzle, and the particle size of the solution ejected by the first nozzle is the particle size of the solution ejected by the second nozzle Larger than the diameter.

  Preferably, the apparatus further includes a solution supply device that supplies the solution to the first nozzle and the second nozzle, and stores the solution ejected by the first nozzle and the second nozzle below the first nozzle. The solution supply device supplies the solution stored in the storage unit to the first nozzle and the second nozzle.

  Preferably, the casing includes a bottom wall and a peripheral wall extending vertically upward from the bottom wall, and the first opening is constituted by an opening upward of the peripheral wall or a through hole in an upper end portion of the peripheral wall. The second opening is formed by a through hole in a lower end portion of the peripheral wall of the casing, the storage portion is formed by a recess formed on one side of the bottom wall, and an upper surface on the other side of the bottom wall. A drainage gradient toward the storage part is formed.

  Preferably, a louver that allows passage of air and does not allow passage of the mist-like solution is attached to the second opening.

  Preferably, the apparatus further includes a duct connected to the second opening, and the duct includes a third opening that extends in a vertical direction, is connected to the second opening at a lower end, and opens to the outside at an upper end.

  Preferably, a louver that allows passage of air and does not allow passage of the mist-like solution is attached to the third opening.

  Preferably, the solution ejected by the first nozzle and the second nozzle contains water.

  According to the present invention, air is sucked into the casing from the first opening by the energy of the first nozzle and the second nozzle ejecting the solution. For this reason, air can be allowed to flow into the casing without providing a fan or a motor. Therefore, the facility cost can be kept low and the maintenance labor can be kept small.

  Moreover, the mist-like solution which a 1st nozzle injects associates with the dust suck | inhaled in the casing with a high association rate because the particle size is small. Further, since the particle size of the solution ejected by the first nozzle is larger than the particle size of the solution ejected by the second nozzle, the solution ejected by the first nozzle is ejected by the second nozzle and dust is generated. It associates with the attached solution at a high association rate. Therefore, the fall of the solution to which dust adheres is promoted by the weight increase due to the association. Thereby, since the solution to which the dust adhered is surely dropped to the lower end of the casing, the dust in the air can be recovered with a high recovery rate.

It is a schematic sectional drawing of the dust removal apparatus which concerns on Embodiment 1 of this invention. It is a top view which shows the inside of a casing, and shows planar arrangement | positioning of a 1st nozzle and a 2nd nozzle. It is a schematic sectional drawing which expands and shows a louver. It is a schematic sectional drawing of the dust removal apparatus which concerns on Embodiment 2 of this invention. It is a schematic sectional drawing of the dust removal apparatus which concerns on Embodiment 3 of this invention.

  Embodiment 1 of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic cross-sectional view of a dust removing device 1 according to Embodiment 1 of the present invention.

  The dust removing device 1 is used for removing dust in the air and deodorizing odors in the air.

  As shown in FIG. 1, the dust removing device 1 includes a casing 10, a first nozzle 20, a second nozzle 30, and a solution supply device 40.

  The casing 10 is erected in the vertical direction, and the first nozzle 20 and the second nozzle 30 (hereinafter, the first and second nozzles 20 and 30) are disposed therein. The casing 10 is formed with a first opening 11 and a second opening 12 (hereinafter, first and second openings 11 and 12). The first opening 11 is formed above the first and second nozzles 20 and 30. The second opening 12 is formed below the first and second nozzles 20 and 30.

  Specifically, the casing 10 includes a bottom wall 13 and a peripheral wall 14 having a rectangular cross section extending vertically upward from the bottom wall 13. The first opening 11 is configured by the peripheral wall 14 opening upward. The second opening 12 is configured by a through hole at the lower end of the peripheral wall 14. In addition, you may comprise the 1st opening 11 by forming the through-hole opened to a side in the upper end part of the surrounding wall 14. As shown in FIG. In this case, the peripheral wall 14 does not open upward.

  The 1st and 2nd nozzles 20 and 30 respectively inject the mist-like solution containing water and a deodorizing agent toward the downward direction. The deodorizer dissolves a water-insoluble odor.

  The first nozzle 20 is disposed below the second nozzle 30. The particle size of the solution ejected by the first nozzle 20 is larger than the particle size of the solution ejected by the second nozzle 30.

  FIG. 2 is a plan view showing the inside of the casing 10 and shows a planar arrangement of the first and second nozzles 20 and 30.

  As shown in FIG. 2A, for example, the first and second nozzles 20 and 30 are arranged side by side at equal intervals in the vertical side direction and the horizontal side direction of the peripheral wall 14. Alternatively, as shown in FIG. 2B, the first and second nozzles 20 and 30 are arranged side by side at equal intervals in the diagonal direction of the peripheral wall 14. The interval between the two nozzles 20 and 30 adjacent to each other in the above directions is set according to the injection angle of the nozzles 20 and 30.

  As shown in FIG. 1, in the casing 10, a storage portion 15 that stores the solution ejected by the first and second nozzles 20 and 30 is formed below the first nozzle 20. The reservoir 15 is a space inside the peripheral wall 14 with the bottom wall 13 as a bottom and the height from the bottom wall 13 to the lower end of the second opening 12.

  A louver 60 is attached to the second opening 12. As shown in FIG. 3, the louver 60 includes a plurality of slats 61 arranged in the vertical direction. The plurality of blades 61 divide the second opening 12 into a plurality of passages 80 that are bent vertically. The louver 60 having the above configuration allows air to pass through the second opening 12 and does not allow the mist-like solution ejected by the first and second nozzles 20 and 30 to pass through the second opening 12.

  The structure of the louver 60 is not limited to the structure shown in FIG. 3, and any structure that allows passage of air and does not allow passage of a mist-like solution may be employed. For example, the blades inclined so as to increase toward the outside of the casing 10 may be arranged in the vertical direction. Even such a louver has a function of allowing passage of air and not allowing passage of a mist-like solution.

  As shown in FIG. 1, the solution supply device 40 includes a liquid suction pipe 41, a filter 42, a water tank 43, a liquid supply pipe 44, a pump 45, and a pressure adjustment pipe 46.

  The liquid absorption pipe 41 communicates the storage unit 15 and the water tank 43. The filter 42 is provided in the liquid absorption pipe 41.

  The liquid supply pipe 44 includes a main pipe 44a, a first branch pipe 44b, and a second branch pipe 44c. The liquid supply pipe 44 connects the water tank 43 and the first nozzle 20 via the main pipe 44a and the first branch pipe 44b, and the water tank 43 and the second nozzle 30 via the main pipe 44a and the second branch pipe 44c. To contact. The pump 45 is provided in the main pipe 44a. When the pump 45 is operated, the solution in the storage unit 15 is supplied to the water tank 43 via the liquid suction pipe 41, and the solution in the water tank 43 is supplied to the first and second nozzles 20 via the liquid supply pipe 44. , 30 and a mist-like solution is ejected from the first and second nozzles 20, 30.

  The pressure adjustment pipe 46 communicates the discharge side (downstream side) of the pump 45 in the main pipe 44 a and the water tank 43. A pressure adjustment valve 49 is provided in the pressure adjustment pipe 46. The pressure adjustment valve 49 adjusts the discharge pressure of the pump 45. Note that a regulator for adjusting the discharge pressure of the pump 45 may be provided instead of the pressure adjustment valve 49.

  A first stop valve 47 is provided in the first branch pipe 44b. A second stop valve 48 is provided in the second branch pipe 44c. The first and second stop valves 47 and 48 adjust the injection pressure of the first and second nozzles 20 and 30. A regulator that adjusts the injection pressure of the first and second nozzles 20 and 30 may be provided instead of the first and second stop valves 47 and 48.

  Next, operation | movement of the dust removal apparatus 1 provided with the said structure is demonstrated.

  When the pump 45 is operated, the solution stored in the water tank 43 is supplied to the first and second nozzles 20 and 30 via the liquid supply pipe 44. As a result, a mist-like solution is ejected from the first and second nozzles 20 and 30, and air containing dust is sucked into the casing 10 from the first opening 11 by this ejection energy. The air sucked into the casing 10 flows downward in the casing 10 by the injection energy. Of the dust in the air that goes downward, the dust that is associated with the solution ejected by the first and second nozzles 20 and 30 adheres to the solution and is removed from the air. The mist-like solution jetted by the second nozzle 30 is associated with dust in the air at a high association rate because of its small particle size. Since the solution ejected by the first nozzle 20 has a large particle size, the solution is ejected by the second nozzle 30 and associates with the solution to which dust is attached at a high association rate. A water-soluble odor such as ammonia contained in the air is dissolved in water contained in the solution and deodorized. The water-insoluble odor contained in the air is dissolved in the deodorizer and deodorized. The air from which the dust has been removed and deodorized is exhausted to the outside through the second opening 12.

  The solution sprayed by the first and second nozzles 20 and 30 falls into the storage unit 15 and is stored. The solution stored in the storage unit 15 is pumped through the liquid suction pipe 41 by the operation of the pump 45, dust is removed by the filter 42, and then supplied to the water tank 43. The solution supplied to the water tank 43 is supplied again to the first and second nozzles 20 and 30 via the liquid supply pipe 44.

  According to the present embodiment, air is sucked into the casing 10 from the first opening 11 by the injection energy of the first and second nozzles 20 and 30. For this reason, air can be allowed to flow into the casing 10 without providing a fan or a motor. Thus, the equipment cost can be kept low. In addition, since it is not necessary to provide a fan or a motor, maintenance work can be reduced, and the dust removing device 1 is less likely to be deteriorated in a dust environment. In addition, the operating cost required to allow air to flow into the casing 10 is only the electric charge required for operating the pump 45, and no electric charge for operating the motor is required unlike the case where a fan or a motor is provided. Therefore, the operating cost can be kept low.

  Moreover, the mist-like solution which the 2nd nozzle 30 injects associates with the dust in the air inhaled in the casing 10 with a high association rate because the particle size is small. For this reason, much of the dust in the air adheres to the solution ejected by the second nozzle 30. And the 1st nozzle 20 is arranged below the 2nd nozzle 30, and the particle size of the solution which the 1st nozzle 20 injects is larger than the particle size of the solution which the 2nd nozzle 30 injects, The solution ejected by the first nozzle 20 associates with the solution ejected by the second nozzle 30 to which dust is attached at a high association rate. For this reason, most of the solution to which dust adheres is promoted to fall due to an increase in weight due to the association, and reliably falls into the storage unit 15. Therefore, dust can be recovered at a high recovery rate.

  Moreover, since water and a deodorizing agent are contained in the solution which the 1st and 2nd nozzles 20 and 30 inject, a water-soluble odor and a water-insoluble odor can be deodorized.

  Moreover, the storage part 15 and the solution supply apparatus 40 are provided, and the solution injected from the first and second nozzles 20 and 30 can be used repeatedly for subsequent injections. Therefore, the solution can be saved, and the operating cost can be kept low.

  Further, the louver 60 is attached to the second opening 12, so that a mist-like solution can be prevented from leaking out from the second opening 12. For this reason, the environment around the dust removal apparatus 1 is not polluted by the solution containing dust.

  In addition, by attaching the louver 60 to the second opening 12, dust remaining in the air passing through the second opening 12 can be removed.

  The solution sprayed from the first and second nozzles 20 and 30 may further include a surfactant. By doing so, since the surface tension of the dust associated with the solution is lowered, the dust associated with the solution can be reliably attached to the solution.

  Next, Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 4 is a schematic cross-sectional view of the dust removing device 100 according to Embodiment 2 of the present invention.

  A dust removing device 100 shown in FIG. 4 is obtained by adding a duct 50 to the dust removing device 1 shown in FIG. Moreover, the storage part 15 is comprised because the one side of the bottom wall 13 is dented below. A drainage gradient toward the storage portion 15 is formed on the upper surface of the other side of the bottom wall 13.

  The duct 50 is a bottomed cylinder connected to the second opening 12. The duct 50 extends in the vertical direction, and has a lower end connected to the second opening 12 and a third opening 53 that opens to the outside at the upper end. A louver 70 is attached to the third opening 53. The louver 70 has, for example, the same structure as the louver 60 shown in FIG. 3, and allows air to pass through the third opening 53 and allows mist-like solution to pass through the third opening 53. do not do.

  The bottom wall 54 of the duct 50 is connected to the other side of the bottom wall 13 of the casing 10. A drainage gradient toward the other side of the bottom wall 13 is formed on the upper surface of the bottom wall 54.

  In the dust removing device 100, the air from which dust has been removed and deodorized in the casing 10 flows into the duct 50 from the second opening 12. The air that has flowed into the duct 50 passes through the third opening 53 and is exhausted to the outside.

  The solution sprayed by the first and second nozzles 20 and 30 falls on the upper surface on the other side of the reservoir 15 and the bottom wall 13. Alternatively, it enters the duct 50 from the second opening 12 and falls to the upper surface of the bottom wall 54. The solution dropped on the other side of the bottom wall 13 and the upper surface of the bottom wall 54 flows according to the drainage gradient and flows down to the storage unit 15.

  According to the dust removing device 100, since the duct 50 extends in the vertical direction, it is possible to prevent the solution that has passed through the second opening 12 from leaking to the outside. Therefore, the environment around the dust removing device 1 is not contaminated by the dust of the solution.

  Further, by attaching the louver 70 to the third opening 53, it is possible to reliably prevent the solution that has entered the duct 50 through the second opening 12 from leaking to the outside.

  Further, by attaching the louver 70 to the third opening 53, dust remaining in the air passing through the third opening 53 can be removed.

  In addition, since a drainage gradient is formed on the upper surface of the other side of the bottom wall 13 and the upper surface of the bottom wall 54 (hereinafter abbreviated as the upper surface of the bottom walls 13 and 54), it falls on the upper surfaces of the bottom walls 13 and 54 The solution thus obtained is fluidized in the reservoir 15. For this reason, the solution dropped on the upper surfaces of the bottom walls 13 and 54 can be repeatedly used for subsequent injection. Therefore, the solution can be saved, and the operating cost can be kept low.

  Also in the present embodiment, the first opening 11 may be configured by forming a through hole that opens laterally at the upper end portion of the peripheral wall 14, and the peripheral wall 14 may not open upward.

  Next, Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 5 is a schematic cross-sectional view of a dust removing device 200 according to Embodiment 3 of the present invention.

  A dust removing device 200 shown in FIG. 5 is obtained by adding a duct 90 to the dust removing device 100 shown in FIG. In the dust removing device 200, the peripheral wall 14 does not open upward, and the first opening 11 is configured by a through hole in the upper end portion of the peripheral wall 14. The duct 90 includes a fourth opening 91 having one end connected to the first opening 11 and the other end opening to the outside.

  According to the dust removing device 200 shown in FIG. 5, by arranging the fourth opening 91 of the duct 90 at a predetermined position in the room, air at the predetermined position in the room can be sucked and purified.

  Moreover, the dust removal apparatus 200 is used in order to take in outdoor air indoors. In this case, the fourth opening 91 of the duct 90 is disposed outdoors, and the third opening 53 of the duct 50 is disposed indoors. In this way, outdoor air from which dust has been removed is taken into the room.

  The dust removing device 200 is used to ventilate a room by discharging indoor air to the outside. In this case, the fourth opening 91 of the duct 90 is disposed indoors, and the third opening 53 of the duct 50 is disposed outdoors.

DESCRIPTION OF SYMBOLS 1,100,200 Dust removal apparatus 10 Casing 11 1st opening 12 2nd opening 13 Bottom wall 14 of casing 14 Perimeter wall 15 of a casing Storage part 20 1st nozzle 30 2nd nozzle 40 Solution supply apparatus 50 Duct 53 3rd opening 60, 70 louvers

Claims (7)

A casing that is erected in the vertical direction to form the first opening and the second opening;
A first nozzle and a second nozzle which are disposed inside the casing and inject a mist-like solution downward;
With
The first opening is formed above the first nozzle and the second nozzle,
The second opening is formed below the first nozzle and the second nozzle,
The first nozzle is disposed below the second nozzle,
The particle size of the solution ejected by the first nozzle is larger than the particle size of the solution ejected by the second nozzle,
A dust removing device in which air at the position of the first opening is directly sucked from the first opening by only the injection energy of the first nozzle and the second nozzle and flows downward in the casing. A solution supply device for supplying the solution to the first nozzle and the second nozzle;
Below the first nozzle is formed a reservoir that stores the solution ejected by the first nozzle and the second nozzle,
The dust removing device according to claim 1, wherein the solution supply device supplies the solution stored in the storage unit to the first nozzle and the second nozzle. The casing includes a bottom wall and a peripheral wall extending vertically upward from the bottom wall,
The first opening is configured by an opening upward of the peripheral wall, or a through hole in an upper end portion of the peripheral wall,
The second opening is constituted by a through hole in a lower end portion of the peripheral wall of the casing,
The storage portion is constituted by a recess formed on one side of the bottom wall,
The dust removing device according to claim 2, wherein a drainage gradient toward the storage portion is formed on the upper surface of the other side of the bottom wall.   The dust removing device according to any one of claims 1 to 3, wherein a louver that allows passage of air and does not allow passage of the mist-like solution is attached to the second opening. A duct connected to the second opening;
4. The dust removing device according to claim 1, wherein the duct includes a third opening that extends in a vertical direction, has the second opening connected to a lower end, and opens to the outside at an upper end.   The dust removing device according to claim 5, wherein a louver that allows passage of air and does not allow passage of the mist-like solution is attached to the third opening.   The dust removing apparatus according to any one of claims 1 to 6, wherein the solution sprayed by the first nozzle and the second nozzle contains water.

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