JP3730074B2 - 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 for the purification of indoor air, as health-consciousness has increased. Air ions clearly affect 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. 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.
[0003]
As a device for purifying indoor air and generating negative ions in the air, Japanese Patent Application Laid-Open No. 7-114971 (Prior Art 1) discloses that a water splitting unit and a gas-liquid separation unit are juxtaposed in front and back. A negative ion generator is described in which a split section and a gas-liquid separation section are connected through an air flow path. Such a negative ion generator is used for a relaxation device and the like, and is also used as an air purification device for a clean room or the like because it can clean the environment.
[0004]
Hereinafter, the schematic structure of the negative ion generator described in Prior Example 1 will be described with reference to FIG.
[0005]
As shown in FIG. 4, the negative ion generator of the first example is configured by a combination of a water splitting unit 101, a gas-liquid separation unit 102, and a water tank 103, and the water splitting unit 101 and the gas-liquid separation unit 102 are connected to each other. 110 is connected. The water splitting part 101 includes inner and outer double cylinders 109 and 111, and a number of nozzles 105 are piped in the outer cylinder 111. The water tank 103 is filled with water, and the water in the water tank 103 is pumped out by the pump 104 and ejected from the nozzle 105 of the water splitting unit 101 at a high pressure. The ejected water collides with the inner wall of the outer cylinder 111 of the water splitting part 101 and splits into fine water droplets, generating negative ions in the air.
[0006]
On the other hand, the circulating air and the outside air sucked from the blower 106 are blown into the outer cylinder 111 of the water splitting part 101, and the air containing fine water droplets generated in the water injection chamber of the water splitting part 101 passes through the outer cylinder 111. It flows at the end, flows to the inner cylinder 109, and further blows through the connecting pipe 110 to the gas-liquid separator 102. The gas-liquid separation unit 102 is a cyclone separator, and the air that flows into the cyclone separator rises while swirling, and water droplets contained in the air are subjected to centrifugal force action caused by the swirling flow, and are separated into gas and liquid. The separated water droplets are collected in the water tank 103 through the second pipe from the discharge port 108 provided on the bottom surface of the gas-liquid separation unit 102. On the other hand, air containing negative ions rises in the gas-liquid separation unit 102 while swirling, and is discharged to the outside from the air supply port 107.
[0007]
The water tank 103 is a supply source of water to be supplied to the water splitting section 101, and most of the excess water supplied to the water splitting section 101 is supplied to the water tank by a discharge hole 108 provided on the lower surface of the water splitting section 101. 103 is collected.
[0008]
[Problems to be solved by the invention]
As described above, in the negative ion generator described in the first example, most of the water pumped up from the water tank 103 by the pump 104 and ejected from the nozzle 105 is discharged from the discharge hole 108 provided in the lower surface of the water splitting portion 101. Although some of the water droplets are collected in 103, the inside of the outer cylinder 111 is reversed and flows into the inner cylinder 109 together with the air swirl flow.
[0009]
The water droplets that flow into the inner cylinder 109 move while swirling along the inner wall of the inner cylinder under the blowing pressure of the blower 106, but some of the water droplets move to the gas-liquid separation unit 102 through the space in the inner cylinder 109. In some cases, it moves linearly, enters the gas-liquid separator 102 through the connecting pipe 110, and is released to the outside without being sufficiently separated in the gas-liquid separator 102. The water in the aquarium 103 is pumped out of the aquarium 103 and supplied to the water splitting unit 101. The water splitting unit 101 comes into contact with the air sucked from the outside of the apparatus and is returned to the aquarium 103 again. Therefore, dust, bacteria, filamentous fungi, spores and the like contained in the air are taken into the circulating water in the water tank.
[0010]
Therefore, the water rolled up by the swirling of air becomes large water droplets without being processed by the gas-liquid separation unit 102, and when this is blown out of the apparatus, these dust, bacteria, filamentous fungi, Spores and the like may also be blown out of the aircraft along with water droplets.
[0011]
In the negative ion generator, the water in the aquarium is replaced by measures such as overflow and drainage. Dust, bacteria, filamentous fungi, spores, etc. in the water are removed from the aquarium by drainage. Therefore, the circulating water must not be discharged directly into the outside air as water droplets.
[0012]
However, in the structure of the first example, a part of a large amount of water droplets generated in the water splitting part 101 moves horizontally in the inner cylinder 109 in the direction of the gas-liquid separation part 102, and the gas-liquid separation part 102 When an amount of circulating water that cannot be treated flows into the gas-liquid separation unit 102, it is blown up by the swirling flow of the air blown into the gas-liquid separation unit 102, and large droplets of water and the air swirl flow of the gas-liquid separation unit 102. There is a possibility that a situation in which the air is blown out from the air outlet 109 may occur. For these reasons, suppressing the intrusion of large water droplets into the gas-liquid separator 102 is a very important problem in keeping the air in the room where the negative ion generator is installed clean.
[0013]
An object of the present invention is to solve the above-described problem, and suppresses the inflow of water droplets and water flowing into the gas-liquid separation unit through the air flow passage from the water splitting unit, and from the outlet of the gas-liquid separation unit. An object of the present invention is to provide a negative ion generator without water droplet scattering.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the negative ion generator according to the present invention is a negative ion generator having a water splitting section, a gas-liquid separation section, and an inflow blocking means, wherein the water splitting section is supplied from a water tank. The gas-liquid separation unit separates the fine water droplets contained in the air blown from the water splitting unit from the air and divides the water into fine water droplets to generate negative ions in the air. a portion for delivering air to the outside including ions, and water splitting portion, the gas-liquid separator, which is connected with a air flow passage, the inflow preventing means is an inner diameter than the inner diameter of the air passage It is a large diameter-expanded portion and forms a recess for receiving water droplets or water flow in the circumferential direction of the air flow passage. And according to this invention, the negative ion generator which can suppress the water droplet and water flow which flow along an airflow path from a water split part and flows into a gas-liquid separation part is obtained.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
In the first aspect of the present invention, the negative ion generator includes a water splitting section, a gas-liquid separation section, and an inflow blocking means. The water splitting unit splits the water pumped from the water tank into fine water droplets to generate negative ions in the air, and the gas-liquid separation unit generates fine water droplets contained in the air blown from the water splitting unit. It is separated from the air, air containing negative ions is sent to the outside, and an inflow prevention means is provided in the air flow passage connecting the water splitting part and the gas-liquid separation part. A diameter-enlarged portion having an inner diameter larger than the inner diameter of the flow passage, forming a recess for receiving a water drop or a water flow in the circumferential direction of the air flow passage, and the water drop or the water flow in the air flow passage is pushed by the air pressure. However, while moving on the circumference along the inner wall of the air flow passage, it is accepted from the air flow passage into the recess and eliminated.
[0016]
【Example】
(Example 1)
Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the negative ion generator is configured by a combination of a water splitting unit 101, a gas-liquid separation unit 102, and a water tank 103, and the water splitting unit 101 and the gas-liquid separation unit 102 are juxtaposed side by side. Is. The water splitting part 101 and the gas-liquid separation part 102 are connected by a connecting pipe 110 that is piped in the horizontal direction. The water splitting part 101 is composed of inner and outer double cylinders 109 and 111, and a plurality of nozzles 105 are piped in the outer cylinder 111 as the water injection chamber 1 toward the inner wall 2 of the outer cylinder. The water splitting part 101 is a part for splitting water, and the jet pipe 3 arranged by branching the circulating water pumped up from the water tank 103 by the pump 104 in the circumferential direction in the water jet chamber 1 from the water supply pipe line. To the outer tube 111 from a large number of nozzles 105 provided in the direction of the tube axis of the injection pipe 3 and collide with the inner wall 2, thereby giving high energy to the jet water and finely supplying the supplied water. Split into water droplets. On the other hand, the blower outlet of the blower 106 is connected to one end 4 (first end face) of the water jet chamber 1 in a tangential direction, and the air blown from the blower outlet of the blower 106 is the outer cylinder 111. The other end face (second end face) facing the first end face 4 of the water jet chamber 1 while intersecting with the circulating water jetted from the nozzle 105 in the direction of the tube axis of the water jet chamber 1. ) Move in the axial direction while turning around the inner cylinder 109 toward the axis 5. The swirling flow of the air that has moved to the second end face 5 reverses and moves in the axial direction while swirling inside the inner cylinder 109 connected to the gas-liquid separation unit 102, and the gas-liquid flows through the connecting pipe 110. It rushes into the separation unit 102. The gas-liquid separation unit 102 is a cyclone tower. The swirling flow of air that has flowed into the gas-liquid separation unit 102 continues to rise while swirling in the cyclone tower, and by the centrifugal force action generated by swirling, the fine water droplets contained in the swirling air are shaken off in the air. The air containing negative ions is blown out of the apparatus through the air supply port 107 of the gas-liquid separation unit 102.
[0017]
On the other hand, most of the water generated in the water jet chamber 1 falls from the discharge hole 108 provided at the bottom of the water jet chamber 1 due to gravity and is collected in the water tank 103. As a result, the inner cylinder 109 is moved together with the air swirl flow, and is subsequently guided to the gas-liquid separator 102 through the connecting pipe 110. The inner cylinder 109 of the water splitting part 101 and the pipe line of the connecting pipe 110 that extends from the inner cylinder 109 to the gas-liquid separation part 102 form an air flow passage 112 that connects the water splitting part 101 and the gas-liquid separation part 102. Is. In the present invention, a pipe line connecting the water splitting part 101 and the gas-liquid separation part 102, in this embodiment, the inner cylinder 109 of the water splitting part 101 and the connecting pipe 110 are referred to as an air flow path 112.
[0018]
In the negative ion generator according to the present invention, the air flow passage 112 is provided with the inflow prevention means 9. In this embodiment, an example is shown in which a part of the pipe of the connecting pipe 110 is provided. The inflow blocking means 9 receives water droplets and water flow that are sent from the water splitting section 101 to the gas-liquid separating section 102 through the inner wall of the connecting pipe 110 while being pushed by the air pressure, and blocks the inflow to the gas-liquid separating section 102. Is. Further, in this embodiment, an example in which the connecting pipe 110 is piped in the horizontal direction is shown, but the connecting pipe 110 is not necessarily limited to a pipe line piped in the horizontal direction. When the water splitting part 101 and the gas-liquid separating part 102 are arranged vertically or obliquely up and down, the connecting pipe 110 is piped vertically or obliquely. When the connecting pipe 110 is piped up and down or obliquely, water droplets or water flow that travels on the inner wall of the pipe falls downward due to its own weight. When it has to be installed in the upper stage, it is necessary to prevent water droplets or water flow that travels along the inner wall of the connecting pipe 110 from flowing into the gas-liquid separator 102. The inflow blocking means 9 is a recess formed in a part of the connecting pipe 110. In this embodiment, the inflow blocking means 9 is an enlarged portion having an inner diameter larger than the inner diameter of the connecting pipe 110 as shown in FIG. . Such a diameter-enlarged portion forms a recess for receiving water droplets or water flow in the circumferential direction of the air flow passage 112 as the inflow prevention means 9. In the embodiment, water and water droplets that have entered the inner cylinder 109 continue to move along the inner wall of the inner cylinder 109 that is the air flow passage 112 and the extension of the connecting pipe 110 while being pushed by the air pressure of the blower. It flows down into the depression of the blocking means 9 and is collected in the water tank 103 through the first pipe 11 from the hole 10 provided in the bottom surface of the depression. As a result, the water droplets and water flow that enter the gas-liquid separation unit 102 from the connecting pipe 110 are greatly reduced, and the only water that enters the gas-liquid separation unit 102 is the fine water droplets caught in the swirling flow of air.
[0019]
Further, in the gas-liquid separation unit 102, fine water droplets in the air are subjected to gas-liquid separation processing by centrifugal force action, and the fine water droplets contained in the air are shaken off in the centrifugal direction, along the gas-liquid separation unit outer cylinder 6 And is collected in the water tank 103 through the second pipe 8 from the drain remover 7 provided on the bottom of the gas-liquid separator 102. On the other hand, air containing negative ions is blown out from the air supply port 107 of the gas-liquid separation unit 102, and large water droplets are not blown out.
[0020]
( Reference Example 1 )
In FIG. 2B, since the recess of the inflow blocking means 9 is an enlarged portion having an inner diameter larger than the inner diameter of the connecting pipe 110, a lip 12 is formed at the boundary between the connecting pipe 110 and the recess. . When water droplets or water flow falls from the inner wall of the connecting pipe 110 into the depression of the inflow prevention means 9, a part of the water accumulates in the edge portion 12, and when this exceeds a certain size, the inflow prevention means 9 is caused by air pressure. It jumps over and jumps out toward the gas-liquid separator 102 and may directly enter the gas-liquid separator 102 as water droplets. In FIG. 2A, a guide surface 13 is provided as a guide means 17 on the upstream end edge of the water splitting portion of the recess that forms the connection pipe 110 and the inflow prevention means 9. A curved surface that guides a water droplet or a water flow that moves along the inner wall into the depression. According to this embodiment, the water droplet or water flow in the connecting pipe 110 moves along the inner wall of the connecting pipe 110 while being pushed by the air pressure, and is guided to the curved surface of the guide surface 13 without jumping over the inflow blocking means 9. Then, it is dropped into the inflow prevention means 9 without difficulty.
[0021]
( Reference Example 2 )
FIG. 3 is an example in which the screw guide 15 is attached over a certain range from the base portion along the inner peripheral surface of the inner cylinder 109 of the water splitting portion 101 forming the air flow passage. The screw guide 15 is guided along the inner wall of the connecting tube 110 along the inner wall of the connecting pipe 110 by guiding a water droplet or water flow that travels along the inner wall of the inner tube 109 toward the gas-liquid separator 102 in the air swirling direction. While moving. The water droplets and water flow induced by the swirling flow of air are drawn to the outer periphery of the swirling flow, and move while swirling along the wall surface of the inner cylinder 109. The water droplets and water flowing out from the water splitting section outlet 16 continue to move along the inner wall of the connecting pipe 110 and are swung into the enlarged diameter portion of the inflow prevention means 9 and smoothly guided into the recess of the inflow prevention means 9. It is burned. The water introduced into the depression passes through the first pipe 11 from the hole 10 and is collected in the water tank 103.
[0022]
【The invention's effect】
As described above, according to the present invention, most of the water flow and water droplets that have entered the water injection chamber cylinder together with the swirling flow of air serve as inflow prevention means in the air flow passage connecting the water splitting portion and the gas-liquid separation portion. Since it is captured and collected in the water tank, the amount of water and water droplets entering the gas-liquid separation unit can be suppressed, and water ions from the gas-liquid separation unit air supply port are prevented from scattering and negative ions are sent together with clean air. The effect that can be obtained.
[Brief description of the drawings]
Sectional view showing a negative ion generator according to Embodiment 1 of the present invention [2] (a) is a cross-sectional view of a negative ion generator recess by Reference Example 1 (b) of the present invention Example 1 FIG dESCRIPTION oF rEFERENCE nUMERALS showing negative ion generator sectional view FIG. 4 of the prior art showing a negative ion generator according to reference example 2 of the recessed portion of the cross-sectional view [FIG 3] the present invention according to reference example 1
9 Inflow blocking means 15 Screw guide 17 Guiding means 101 Water splitting section 102 Gas-liquid separation section 103 Water tank 112 Air flow passage

Claims (1)

A water tank, a water splitting part, and a gas-liquid separation part, wherein the water splitting part is a part that splits the water supplied from the water tank into fine water droplets and generates negative ions in the air; The part is a part for separating fine water droplets contained in the air blown from the water splitting part from the air and sending out air containing negative ions to the outside of the device, the water splitting part and the gas-liquid separating part Is a negative ion generator connected with an air flow passage, and accepts water droplets or water flow sent from the water splitting portion to the gas-liquid separation portion through the air flow passage to flow into the gas-liquid separation portion. Inflow blocking means for blocking is provided, and the inflow blocking means is an enlarged portion having an inner diameter larger than the inner diameter of the air flow passage, and forms a recess for receiving a water droplet or a water flow in a circumferential direction of the air flow passage. it, characterized in that The ion generating device.

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