JP4108250B2 - Negative ion generator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a negative ion generator that generates negative ions in the air using the Leonard effect (waterfall effect).
[0002]
[Prior art]
In recent years, the use of air ions has attracted attention as a further added value as well as the purification of indoor air as health-consciousness increases. Air ions clearly have an impact on the efficiency and emotions of our work. In particular, negative ions are said to have the effect of stabilizing the mind and enhancing the function of the respiratory organs.
[0003]
When water drops break up in the air, more precisely, when water drops collide with a metal plate that is a barrier and break up into fine water drops, negative ions are generated in the nearby air, and the fine water drops are equivalent to negative ions. Get a positive charge. This phenomenon has long been known as the Leonard effect. Later, it was confirmed by Simpson that a similar effect to Leonard could occur just by splitting the water droplets in the air.
[0004]
A device for generating negative ions in the air using the Leonard effect is described in, for example, Japanese Patent Publication No. 5-587555 (Prior Example 1), and such a negative ion generator is used for general homes or offices. For example, Japanese Unexamined Utility Model Publication No. 4-126717 (Prior Art 2) discloses an air cleaner.
[0005]
FIG. 5 shows the configuration of the second example. In FIG. 5, the negative ion generator using the Leonard effect is basically a combination of a water splitting unit 101, a gas-liquid separation unit 102, and a water tank 103. The water in the water tank 103 is pumped out by the pump 104 and supplied to the water splitting unit 101, and is ejected at a high pressure from the nozzle 105 of the water splitting unit 101, and collides with the inner wall 106 of the cylinder of the water splitting unit 101 to form fine water droplets. To generate negative ions in the air.
[0006]
On the other hand, the outside air sucked from the blower 107 is blown into the water splitting unit 101, and fine water droplets containing negative ions generated in the water splitting unit 101 are blown to the gas-liquid separation unit 102 by the swirling flow of air, In the gas-liquid separation unit 102, while rising while swirling, the liquid-liquid separation is performed under the action of centrifugal force generated by the swirling flow, the water droplets are returned to the water tank 103, and air containing negative ions is supplied to the air supply port. The air is sent from 108 to the outside air.
[0007]
[Problems to be solved by the invention]
However, when the above structure is used, the water splitting part 101 and the gas-liquid separation part 102 are constituted by separate cylindrical parts, and thus there is a great restriction in promoting downsizing of the apparatus. The air sucked by the blower 107 descends while swirling in the water splitting part 101, reverses at the descending end, is sent out in the tangential direction, is blown into the gas-liquid separation part 102, and the gas-liquid separation part 102 Since it rises while turning inside and is discharged from the air supply port 108, the pressure loss is large and the blower 107 having a large output is required.
[0008]
An object of the present invention is to provide a negative ion generator with a small pressure loss while incorporating a water splitting part and a gas-liquid separation part into a single cylinder.
[0015]
[Means for Solving the Problems]
In order to solve the above-described object, in the negative ion generator according to the present invention, a water splitting unit that splits injected water in a swirling flow of air to generate negative ions in the air, and in the air generated by the splitting. A negative ion generator having a gas-liquid separation part for capturing water droplets contained in the inside of the cylinder, wherein the cylinder forms a flow passage for the swirling air and swirls the air blown from below The water splitting part is arranged in the lower stage, the gas-liquid separation part is arranged in the upper stage, the gas-liquid separation part has a draining unit, and the draining unit is a hollow inverted cone. a body having an inclined surface which rises at an angle toward the inner peripheral surface of the cylindrical body from a center of the cylindrical body has two or more draining parts arranged radially from the center, before Kisui cut portion, slopes of the hollow inverted cone member Is formed by cutting and raising, on the slopes of the hollow inverted cone body, the two or more air flow port by cutting and raising the cutwater forms a flow opening of the air swirling is opened radially, the water drainage portion is the hollow Cantilevered on the inclined surface of the inverted cone and raised upward to cover the upper side of the air circulation port, the draining portion has a large area on the outer peripheral side of the hollow inverted cone. and sector is to shall and characterized by increasing the opening area of the flow port of the outer peripheral side of the hollow inverted cone body.
[0016]
In addition, a water tank part for storing water to be supplied and sprayed to the water splitting part is provided under the water splitting part in the cylindrical body , and a drain hole is opened at the center of the hollow inverted cone of the draining unit. the plate surface of the inclined surface of the hollow inverted cone body along the state, and are not a guide surface for guiding the captured water droplets draining portion to drain holes, the water droplets entrapped in the draining portion the drainage hole by dropping Ru der those returned to the water tank unit.
[0017]
In addition, two or more draining units are arranged in the upper and lower stages in the gas-liquid separation unit, and the flow outlet of each stage draining unit forms a flow path for the swirling flow of air between each stage draining unit And the drain part of the drain unit of each stage captures the water droplets contained in the swirling flow of air sequentially.
[0018]
The draining unit is a machined piece of a disk-shaped sheet. The arc-shaped portion of the disk is removed and the remaining edges of the remaining disks are joined to form a conical shape. The part is a part cut and raised along a cut line attached to the disk, and the circulation port is an opening formed in a conical slope by cutting and raising the draining part. Furthermore, it is possible to manufacture by punching using a sheet.
[0019]
According to the present invention, the apparatus can be miniaturized, and a negative ion generator with little pressure loss can be obtained.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, a water splitting section that splits the injected water in a swirling flow of air to generate negative ions in the air, and a gas-liquid that traps water droplets contained in the air generated by the splitting. A negative ion generator having a separation part inside the cylinder, wherein the cylinder forms a flow passage for the swirling air, and the air blown from the lower part is sent from the upper part while swirling. The water splitting part is arranged in the lower stage, the gas-liquid separating part is arranged in the upper stage, the gas-liquid separating part has a draining unit, the draining unit is a hollow inverted cone, and the center of the cylinder has a slope which rises at an angle toward the inner peripheral surface of the cylindrical body from having two or more draining parts arranged radially from the center, the front Kisui cutting portion, said hollow inverted cone member It is formed by cutting and raising of the oblique surface, the hollow reverse The slope of the cone, the two or more air flow port by cutting and raising the cutwater forms a flow opening of the air swirling is opened radially, the draining unit is cantilevered on the slopes of the hollow inverted cone member The drained portion is bent so as to rise upward and cover the upper side of the air circulation port, and the draining portion has a fan shape with a large area of the draining portion on the outer peripheral side of the hollow inverted cone. The opening area of the outer circulation port is increased, and a swirling flow of air is received from the entire circumference of the cylinder to perform a gas-liquid separation process.
[0027]
In the invention of claim 2 , a water tank part for storing water that is supplied to and sprayed to the water splitting part is provided under the water splitting part in the cylindrical body , and a drain hole is provided at the center of the hollow inverted cone of the draining unit. The plate surface of the slope of the hollow inverted cone along the draining portion serves as a guide surface that guides the water droplet trapped in the draining portion to the drain hole, and the water droplet trapped in the draining portion It is collected in the center, falls inside the drain hole, and returns to the water tank in the cylinder. The water droplets captured by the draining part are dropped in the drain hole and returned to the water tank part. Note that most of the swirling flow of air rises along the inner peripheral surface of the cylinder, the central part of the cylinder becomes negative pressure, and water droplets collected at the center of the hollow inverted cone pass through the drain hole. Sucked.
[0028]
In the invention of claim 3 , two or more draining units are arranged in the upper and lower stages in the gas-liquid separation part, and the circulation port of each stage draining unit is a swirl of air between the draining units of each stage. The drainage section of each draining unit captures water droplets contained in the swirling flow of air one after another, and the swirling flow of air hardly disrupts the streamline of the swirling flow. It flows from the flow port of the lower drainage unit through the flow port of the upper drainage unit, and hardly causes pressure loss.
[0029]
According to a fourth aspect of the present invention, the draining unit is obtained by processing a single disk-shaped sheet, removing the arc portion of the disk, and joining the remaining edges of the disk to form a cone. The draining part is a part raised along a cut line attached to the disk, and the flow opening is an opening formed in a conical slope by the raising and lowering of the draining part. Using a metal sheet, plastic sheet, etc. for the disc, it can be easily manufactured by punching.
[0030]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, the negative ion generator according to the present invention is formed by partitioning the inside of one cylindrical body 1 into a water splitting section 2 and a gas-liquid separation section 3. An air suction pipe 4 is opened in the tangential direction of the cylindrical body 1 at the outer periphery of the cylindrical body 1 corresponding to the lower end of the formation region of the water splitting section 2, and the tangent of the cylindrical body 1 is formed at the upper outer periphery of the cylindrical body 1. The blower 6 (sirocco fan) is built in the internal space of the upper part of the cylinder 1 which has the negative ion blower outlet 5 opened in the direction. In this embodiment, the space below the connection portion of the air suction pipe 4 is used for the water tank portion 7, and the pump 8 is installed in the space defined and formed further below. The water tank unit 7 is a tank that stores water to be supplied to the water splitting unit 2. The blower 6 is rotationally driven by a motor 10 installed on a lid 9 that closes the upper portion of the cylinder 1, and by the drive of the blower 6, swirling air from outside air to the blower outlet 5 is brought into the cylinder 1 by outside air. The flow path is formed. That is, outside air is sucked into the cylindrical body 1 through the suction pipe 4, and the sucked air moves up in the cylindrical body 1 while swirling, and passes through the water splitting section 2 and the gas-liquid separation section 3 from the outlet 5. 1 is discharged to the outside. The water splitting unit 2 is a part that splits the jetted water in the swirling flow of air to generate negative ions in the air, and the gas-liquid separating unit 3 drops water droplets contained in the air generated by the splitting. This is the part to be captured. In the water splitting section 2, a nozzle pipe 12 having a water injection nozzle 11 is raised at the center of the cylindrical body 1. The nozzle pipe 12 is connected to the pump 8, and the water in the water tank unit 7 is pumped up by the pump 8, supplied to the nozzle pipe 12, and injected from each nozzle 11. One or more draining units 13 are incorporated in the gas-liquid separator 3. As shown in FIG. 3, the draining unit 13 has an opening that forms a circulation port 14 for swirling air and a draining unit 15 that captures water droplets contained in the air generated by the splitting. The draining unit 13 is a hollow inverted cone having an open upper surface, and has a slope 16 that rises at an angle from the center of the cylindrical body 1 toward the inner peripheral surface of the cylindrical body 1. 14 is provided on the inclined surface 16, but in this embodiment, as shown in FIG. 4, the draining unit 13 includes a circular arc portion 18 including a central angle θ from a single disk-like sheet 17. The overlap margin 19 is secured at the opposite edge of the remaining disk, and the overlap margins 19 and 19 are bonded and joined to form a conical shape. The sheet 17 is provided with an arcuate outer peripheral cut line 20, an inner peripheral cut line 21, and a radial cut line 22 connecting one end of both cut lines 20, 21. The flow port 14 is an opening formed on the slope of the cone by cutting and raising the draining portion 15. The draining portion 15 has a sector shape, is supported in a cantilever manner on the inclined surface 16 of the hollow inverted cone, and has an acute angle with respect to the inclined surface 16 of the hollow inverted cone so as to rise upward and cover the air circulation port 14. It is bent at an angle. Further, as shown in FIG. 4 , the open end of the draining portion 15 is further bent toward the inclined surface 16 side of the hollow inverted cone so as to be substantially parallel to the inclined surface, and the swirl of the air that has passed through the air circulation port 14. It is the collision surface 23 which makes a flow collide. If a metal sheet (aluminum foil), a plastic sheet or the like is used as the sheet for the draining unit, it can be easily manufactured by punching or the like.
[0031]
The draining unit 13 assembled in a conical shape is formed with two or more draining portions 15 arranged radially from the center of the hollow cone as shown in FIG. By cutting and raising the draining portion 15, two or more circulation ports 14 are naturally opened radially. In the present invention, a drain hole 24 is opened at the center of the hollow inverted cone of the draining unit 13. The drain hole 24 is a hole for dropping the water droplets captured by the drainer 15, and the plate surfaces on both sides of the inclined surface 16 of the hollow inverted cone along the drainer 15 drain the water droplets captured by the drainer 15. It becomes a guide surface that leads to the hole 24.
[0032]
In the embodiment, in the gas-liquid separation unit 3, one or two or more draining units 13 are fixed at a fixed position and arranged in combination in the upper and lower stages at regular intervals. Next, the pump 8 is driven to pump up water in the water tank unit 7, supplied to the nozzle pipe 12, and ejected from each nozzle 11 toward the inner wall surface of the cylinder 1. On the other hand, when the blower 6 is driven, a suction force is generated in the cylinder 1, the outside air is sucked into the cylinder 1 from the suction pipe 4, and the sucked air turns in the cylinder 1 toward the outlet 5. But rises. In the water splitting section 2, the water ejected from each nozzle 11 collides with the inner wall of the cylinder 1, or is entrained in the swirling flow of the air rising in the cylinder 1 and splits into fine water droplets. Generate negative ions. The swirling flow of air is directed to the gas-liquid separation unit 3 with the generated negative ions, but is introduced into the gas-liquid separation unit 3 while simultaneously sprinkling fine water droplets generated on the inner wall of the cylindrical body 1 by the centrifugal force effect by the swirling. Is done. In the gas-liquid separator 3, the air flows along the flow lines of the swirling flow f in the flow outlets 14 of the draining units 13, 13... As shown in FIG. 3, in the draining unit 13 at each stage, the swirling flow of air is received from the entire circumference of the cylindrical body 1 with almost no disruption of the swirling flow line, and the lower stage Between the circulation port 14 of the side draining unit 13a and each flow path 14 of the upper side draining unit 13b becomes a flow path of the swirling flow f, and air flows and flows into each draining portion 15 of each draining unit 13a, 13b. Water droplets contained in the swirling flow of air in contact with each other are captured on the plate surface. The draining portion 15 has a fan shape with a large area on the outer peripheral side of the hollow inverted conical body. Therefore, the opening area of the flow passage 14 on the outer peripheral side is naturally increased. A large amount of airflow swirling around the circumference is smoothly received, and no large flow resistance is generated when passing through the circulation port 14. The swirling flow of the air that has passed through the circulation ports 14 of the draining units 13a and 13b at each stage collides with the collision surface 23 of the draining unit 15 for each of the draining units 13a and 13b, and the streamline is bent downward so that the air flows. As a result, the pitch of the swirl flow is narrowed, and as a result, the stroke of the air flow in the gas-liquid separation unit 3 is increased, and the gas-liquid separation efficiency can be increased. Air containing negative ions from which water droplets have been removed after passing through the gas-liquid separation unit 3 is sucked into the blower 6 while maintaining a swirling flow, and is directed to the outside of the cylinder 1 from the blowout port 5 in the tangential direction of the cylinder 1. Sent out. On the other hand, the water droplets trapped on the plate surface of the draining portion 15 are collected at the center of the hollow inverted cone, fall in the drain hole 24 and returned to the water tank portion 7. Since most of the swirling flow of air rises along the inner peripheral surface of the cylinder 1, the central portion of the cylinder 1 has a negative pressure, and water droplets collected at the center of the hollow inverted cone are drained. The water is positively sucked through the inside of the hole 24, travels through the nozzle pipe 12, returns to the water tank unit 7, and is repeatedly supplied to the water splitting unit 2.
[0033]
【The invention's effect】
As described above, according to the present invention, since the water splitting part and the gas-liquid separation part are incorporated in one cylinder, the negative ions due to the splitting of water inside one cylinder. Generation and gas-liquid separation processing are performed, so that it is possible to provide a negative ion generator that is compact and easy to handle. Further, the cylindrical body forms a swirling air flow passage, and the swirling flow of air blown from the lower part of the cylindrical body rises in the cylinder while continuing the swirling, and the water splitting section and the gas-liquid separating section are separated. Since the flow lines of the swirl flow are not broken, and flow smoothly and are discharged from the upper part of the cylinder, the pressure loss in the cylinder is small. Furthermore, the draining unit incorporated in the gas-liquid separation unit has an opening forming a swirling air flow passage and a draining unit for capturing water droplets contained in the air generated by the splitting, and is set in the cylinder. Thus, the gas-liquid separation part can be easily formed on the water splitting part. According to the present invention, the water draining unit can be standardized, and the required gas-liquid separation function can be obtained by selecting the number of water draining units used.Furthermore, the rising angle of the water draining part according to the air volume and the state of water droplets, By adjusting the relative positions of the upper and lower water draining units, the apparatus can be optimally designed.
[Brief description of the drawings]
1A is a plan view of a negative ion generator in an embodiment of the present invention; FIG. 1B is a cross-sectional front view of the negative ion generator; FIG. 2A is a plan view of the same gas-liquid separator; Cross-sectional front view showing the relationship between the water splitting part and the gas-liquid separating part. FIG. 3 is a diagram showing a combination state of the water draining unit. FIG. 4 (a) a plan view before assembling the water draining unit. Front view after assembly (c) View from the direction of the arrow in FIG. 4 (b) [FIG. 5] Schematic diagram of a conventional ion generator (air purifier) [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Water splitting part 3 Gas-liquid separation part 13 Drainage unit 14 Flow outlet 15 Drainage part 16 Slope 18 Arc part 20 Outer peripheral cut line 21 Inner peripheral cut line 22 Radial cut line 23 Colliding surface 24 Drain hole

Claims (4)

The water splitting part that splits the injected water in the swirling flow of air to generate negative ions in the air, and the gas-liquid separation part that traps water droplets contained in the air generated by the splitting inside the cylinder The negative ion generator has a cylindrical air flow passage, and the air blown from the lower part is sent out from the upper part while turning, and the water splitting part is in the lower stage. The gas-liquid separation part is arranged in the upper stage, the gas-liquid separation part has a draining unit, the draining unit is a hollow inverted cone, and the inner peripheral surface of the cylinder from the center of the cylinder has a slope which rises at an angle towards, has two or more draining parts arranged radially from the center, the front Kisui cutting portion, formed by cutting and raising of the slopes of the hollow inverted cone member It is, on the slopes of the hollow inverted cone body, the drained Lanced by more than one vent port parts form a flow opening of the air swirling is opened radially, the draining unit is the launch upwardly supported on the cantilevered on the slopes of the hollow inverted cone member It is bent so as to cover the upper part of the air circulation port, the draining part is a fan shape with a large area of the draining part on the outer peripheral side of the hollow inverted cone, and the opening area of the circulation port on the outer peripheral side of the hollow inverted cone is negative ion generator you characterized by increased. A water tank part for storing water to be supplied and sprayed to the water splitting part is provided under the water splitting part in the cylinder , and a drain hole is opened at the center of the hollow inverted cone of the draining unit along the draining part. the plate surface of the inclined surface of the hollow inverted cone body state, and are not a guide surface for guiding the captured water droplets into the draining portion to the drain holes, the droplets trapped in the draining portion the drainage hole The negative ion generator according to claim 1 , wherein the negative ion generator is returned to the water tank section . In the gas-liquid separator, two or more draining units are arranged in combination in the upper and lower stages, and the flow outlets of the draining units at each stage provide a flow path for the swirling flow of air between the draining units at each stage. formed, the draining portion of the draining unit, the negative ion generator of claim 1, wherein the in which sequentially captures the water droplets contained in the swirling flow of air. The draining unit is a machined piece of a disc, and the arc portion of the disc is removed and the remaining edges of the disc are joined to form a conical shape. a raised portion outright along cut line attached to the plate, flow port is negative according to claim 1, characterized in that the cutting and bending of the draining portion is an opening formed in the inclined surface of the cone Ion generator.

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