JP3283677B2 - humidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier used for dust prevention, deodorization, and antistatic, and more particularly to a humidifier that generates ultra-fine water droplets that do not wet articles despite high humidity.

[0002]

2. Description of the Related Art Humidifiers that produce an appropriate level of humidity when the humidity is significantly reduced due to, for example, indoor heating are very effective. It is generally said that healthy humidity is 40 to 50%. There are two methods to create the appropriate humidity: a heater heating type that humidifies with warm steam, a filter type that humidifies with a humidified filter, a centrifugal spray type that scatters and humidifies fine mist, and a mist that uses ultrasonic vibration. There is an ultrasonic type that humidifies by blowing out air. The filter type is a floor-standing type, but the others are table-top types (Toyo Keizai Shimpo p12
62p).

Recently, ultrasonic humidifiers have been mainly used in ordinary households. In the present invention, the humidifier includes a humidifier, a sprayer, a nebulizer, and the like used for a specific application, in addition to the indoor humidifier as described above.

[0004]

The fog generated by any of the above-mentioned methods has a particle size that can be seen with the eyes, and has a size of 3 μm or more, especially 10 μm.
m or more.

[0005] In the fog emitted from the humidifier, especially 10μ
When a large amount of large water droplets of m are included, they adhere to the articles as they are and wet paper products and futons, and when they adhere to electric products, they cause a short circuit accident between components. Normally, humidifiers have been required to reduce the size of mist droplets in order to solve such problems, but the problem of using humidifiers is not limited to simply wetting articles. . The most serious problem is
When water used contains pollutants, the pollutants are all contained in water droplets and are scattered around.

For example, a city water is atomized using an ultrasonic humidifier to condense mist-like water droplets, and a substance contained in the city water and a component contained in the condensed water of the mist generated by the ultrasonic humidifier. Is shown in Table 1.

[0007]

[Table 1]

As is clear from Table 1, cations (Na, K, Ca, Mg, etc.) and anions (C
_{^{l -, NO 3 -, SO}} 4 -2 , etc.), still it can be seen that contained in the condensate. From this fact, when contaminants, bacteria, bacteria, viruses and the like shown in FIG. 1 are contained in the water used for the humidifier, there is a danger that all these fungi will be scattered into the room together with the water droplets. This poses a significant problem of nosocomial emissions when using humidifiers in hospitals. In addition, another problem in which contaminants are entrained in the water droplets of the fog is that if the components contained in the water dry while adhering to the article, for example, NaCl
Etc. precipitate and crystallize, which causes contamination of the article.

It is an object of the present invention to provide a humidifier which makes only water fine water droplets and emits the water without accompanying various components contained in the water.

[0010]

Means for Solving the Problems] To achieve the above object, in a pressurized humidifier Ru good in the present invention, there is provided a humidifier comprising: a centrifugal force-Coriolis force generating device, an extracting device, before
Serial centrifugal force, Coriolis force generating device forms a swirl flow in the air stream flowing through the tube, by the action of centrifugal force, Coriolis force supplied water, air into the extraction device to divide the water in the whirling air current Air transport pipes and screens
And a water jet nozzle.
The pipe receives the airflow injected from the high-speed airflow source and
A pipe for pneumatically transporting the droplets, wherein the screw guide
Spirally winds the air flow injected into the pneumatic transport pipe.
The Coriolis force is induced by the earth's
Is provided to work in the direction of the angular velocity vector
Centrifugal force and Coriolis force are simultaneously applied to the transported water droplets.
Which are arranged in the pipe axis direction of the pneumatic transport pipe.
The water injection nozzle is formed in the pneumatic transport tube.
Squirting water into the swirling flow of air
The extraction device is for extracting and outputting high-humidity air containing ultra-fine water droplets of 1 μm or less, particularly 0.1 μm or less, by selecting the particle size of the split water.

[0011]

Also, a centrifugal force / Coriolis force generating device,
A centrifugal force / Coriolis force generating device, which forms a swirling flow in an airflow flowing in the pipe, and
Centrifugal and Coriolis forces act on the supplied water to create a swirling airflow.
To split water and pneumatically transport it to the extraction device.
Ri has a pneumatic transport pipe, and the screw guides, and a water injection nozzle, the air force transport tube, the water droplets to receive the airflow that is pressed from the high-speed air stream generating source is a tube for transporting the air force, wherein The pneumatic transport tube is composed of inner and outer double tubes.
The inner and outer pipes communicate with each other to form a return flow path for airflow.
Forming the outer tube is connected to a high-speed airflow source;
The inner tube is connected to the extraction device, and the outer tube is connected to the outer tube.
Inside the pipe, the water injection nozzle is installed to
A screw guide is installed and formed in the inner tube.
The screw guide forms a splitting action region, and the screw guide simultaneously guides the centrifugal force and the Coriolis force to the water droplets pneumatically transported by inducing the air flow pressed into the pneumatic transport tube into a spiral swirling flow. is intended to act, is arranged in the tube axis direction of the air force transport pipe, the water injection nozzle, the water is jetted to generate water droplets in the swirling flow of the air current formed in the air force transport tube Monodea is, the extraction device,
Divided water is subjected to particle size selection of 1 μm or less, especially 0.1 μm
Extract and output high humidity air containing the following ultra-fine water droplets
Monodea Ru.

The screw guide is a helical ridge disposed along the inner periphery of the pneumatic transport pipe. The helical ridge forcibly guides the air flow to a spiral swirling flow. Then, centrifugal force and Coriolis force act on water droplets transported by pneumatic force to promote the division.

[0014] The pneumatic transportation pipe has a water droplet generation area;
The water drop generation area is a front area in the pneumatic transport pipe, a water jet nozzle is installed in the pipe, the split action area is a rear area in the pneumatic transport pipe, and a screw is formed in the pipe. A guide is installed.

Further, the pneumatic transport pipe is constituted by an inner and outer double pipe, the inner and outer pipes communicate with each other to form a folded flow path of the air flow, and the outer pipe is connected to the high-speed air flow source, and the inner pipe is connected to the inner pipe. Is connected to the extraction device. In the outer tube, a water jet nozzle is provided to form a water droplet generation region, and in the inner tube, a screw guide is provided to form a splitting region.

The extraction device is a centrifugal separator, particularly a cyclone separator.

[0017]

[Action] The gas supplied at high speed from the high-speed airflow source is
A swirling flow is formed in the pneumatic transport pipe, water is injected into the swirling air flow and splits into water droplets, and the kinetic energy generated by the swirling flow of the gas and the effects of centrifugal force and Coriolis force simultaneously cause splitting. Further promoted. Here, assuming that the radius r of the aerodynamic transport pipe, the angular velocity of rotation of the swirling motion is w, and the mass and velocity of the mass point are m and v, respectively, the kinetic energy of the gas is 1/2 mv ² , the centrifugal force is mrw ² , and Coriolis Power is 2mw
given by v. The Coriolis force factor (f) is given by f = Ωsinφ, and is a factor caused by the angular velocity (Ω) and the latitude of the earth's rotation. In the northern hemisphere, the direction of the turning is rightward with respect to the traveling direction. Therefore, when turning the water drop, the turning direction is set so that the Coriolis force acts in the direction of the angular velocity vector of the earth rotation. By effectively applying the Coriolis force, it is possible to obtain energy at a distance of several centimeters when a water drop falls several hundred meters.

The water droplet receives a strong Coriolis force in addition to the kinetic energy of the air current and the centrifugal force, and has a particle size of substantially 1 μm.
Hereafter, particularly, a large amount of ultrafine water droplets of 0.1 μm or less are generated.

Next, when the swirling airflow containing water droplets is pumped to the extraction device to perform centrifugal separation, the high-humidity air containing the ultrafine water droplets is gas-liquid separated and sent to the outside. Even if the obtained humid air touches the article, the surface of the article is not wet, and since it contains a large amount of ultrafine water droplets having a particle size of 1 μm or less, particularly 0.1 μm or less, it was contained in water. Without entrainment of contaminants, bacteria, viruses, etc., it contains negative ions and has activity,
The effect of capturing pollutants in the atmosphere and suppressing the growth of bacteria, viruses, etc. can be obtained.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In FIG. 2, the embodiment shows an indoor-installed humidifier 3 composed of a combination of a centrifugal force / Coriolis force generation device 1 and an extraction device 2.

The centrifugal force / Coriolis force generator 1 has an intake port 5 and an exhaust port 6 in the pneumatic transport pipe 4, a high-speed airflow generator 7 is connected to the intake port 5, and outside air is blown into the exhaust port. 6
Is connected to the extraction device 2 and air separated from the liquid is sent to the outside through the outlet 18.

In the embodiment, the circulation system is formed by opening the air outlet of the extraction device 2 and the air inlet of the high-speed airflow generation device 7 into the room.

The centrifugal force / Coriolis force generating device 1 is a mechanism for applying a centrifugal force / Coriolis force to water jetted into a high-speed air flow to make water droplets fine. In the embodiment, a horizontal air force transport pipe 4 is used. And the outer cylinder 8 of the pneumatic transport pipe 4
An example is shown in which an inner cylinder 9 is provided concentrically with the axis, one end of the inner cylinder 9 is opened in the outer cylinder 8, and the other end is connected to the extraction device 2.

The air inlet 5 is opened to the outer cylinder 8, and the airflow sucked from the high-speed airflow generator 7 is swirled by the outer cylinder 8.
It passes through the inside, is folded at the end, is received in the inner cylinder 9, and after passing through the inner cylinder 9, is fed to the extraction device 2 by pressure.

In the embodiment, a screw guide 10 is provided in the inner cylinder 9 at least one round from the inner end thereof along the axis, and a nozzle pipe 11 is provided over the entire outer circumference of the inner cylinder 9. A tank 13 filled with water for supplying water to each nozzle 12 is installed below the outer cylinder 8. The water in the tank 13 is sent to the nozzle pipe 11 by the pump 14, and is jetted from each nozzle 12 into the outer cylinder 8. On the other hand, a cooling coil 15 is provided on the inner peripheral surface of the outer cylinder 8. The cooling coil 15 is a cooler that cools the airflow in the outer cylinder 8 and controls the temperature and humidity of the supply air.

The screw guide 10 is a spiral ridge arranged along the inner periphery of the inner cylinder 9 as shown in FIG. Is forcibly turned spirally. The screw guide 10 defines the direction of the turning direction of the airflow so that the Coriolis force is directed in the direction of the angular velocity vector of the earth rotation. In order to generate the Coriolis force effectively, it is necessary to install at least one turn in the inner cylinder 9. Also, a number of small holes are formed in the inner cylinder 9 as a drain 16 and communicate with the outer cylinder 8.

The extraction device 2 is a centrifugal separator for performing gas-liquid separation, in which a conical cylinder 18 is installed in a cylindrical body 17. The cylindrical body 17 is an outer cylinder of the centrifugal force separating device as shown in FIGS. 4 and 5 and has a cylindrical shape, and has a gas inlet 19 at a body and an outlet 20 at a top. ing. In addition, a drain hole is opened in the lower bottom portion.

The blowing port 19 is connected to the exhaust port 6 of the centrifugal force / Coriolis force generating device 1 and sends an airflow into the cylindrical body 17 from the tangential direction of the lower peripheral surface of the body of the cylindrical body 17. . Inside the blow-in port 19, a rectifying plate 22 inclined downward at a certain angle is attached. Further, the cylindrical body 1 leading to the opening
5, a guide plate 23 for guiding the gas to be supplied toward the inner wall of the cylindrical body 17 is provided so as to rise upward within a certain range as shown in FIG.

The outlet 20 is an opening of an exhaust pipe which is inserted at a certain depth from the top of the upper bottom of the cylindrical body 17, which is a middle and high level of the cylindrical body 17, at a position concentric with the axis of the cylindrical body 17. is there. The conical cylinder 18 is formed in a conical hollow cylindrical shape having upper and lower openings of large and small diameters, with the opening on the large diameter side facing upward, supported by a support post 24 and installed in a horizontal position directly below the outlet 20. ing. The conical cylinder 18 is provided in a certain area immediately below the outlet 20. In the embodiment, the short conical cylinder 1 is used.
8 shows an example in which two of Nos. 8 are arranged at regular intervals from each other in two upper and lower stages in the area.

When an air flow including water droplets is injected into the extraction device 2 at a high speed, the air flow is rectified into a laminar flow by the rectifying plate 22 and further guided to the guide plate 23, and the upward swirling flow A in the cylindrical body 17. And rises along the inner wall of the cylindrical body 17. During the ascent, water droplets contained in the gas are beaten to the inner wall surface of the cylindrical body 17 and separated from the gas by centrifugal force generated by the swirling of the gas. It is discharged outside from the punch.

The upward swirling flow A reaches the upper bottom of the cylindrical body 17 and a part of the upward swirling flow A flows out of the outlet 20 as an exhaust flow C. Cylinder 1
8, and descends along the inner wall of the conical cylinder 18 as a downward swirling flow B. Since the conical cylinder 18 has a small diameter at the lower end opening side, the circumferential velocity of the descending swirling flow B gradually increases while descending in the conical cylinder 18, and forms a strong negative pressure region in the space above the conical cylinder 18. .

In FIG. 4, the pressure of the air flow at the inner wall of the cylinder near the upper end is P ₁ , the pressure of the air flow at the outer wall at the upper edge opening of the upper conical cylinder is P ₂ , and the pressure of the air flow at the inner wall is P _3. ,
Air pressure P ₄ at the inner wall at the lower edge opening of the upper conical cylinder
In this case, the magnitude relationship is P ₁ > P ₂ > P ₃ >> P ₄ , and a strong suction force is generated in the conical cylinder 18 and remains in the exhaust flow C exhausted from the outlet 20. The water droplets are sucked by the suction force and fall into the downward swirling flow B, and only the airflow from which the water droplets have been removed becomes the exhaust flow C and is exhausted from the outlet 20 to the outside. On the other hand, the downward swirling flow B is the upper conical cylinder 1
8, a part of the upward swirling flow A is sucked when flowing into the lower conical cylinder 18, flows into the lower conical cylinder 18, and is mixed with a gas newly introduced from the blowing port 19 at the lower end thereof. The rising swirling flow A is formed again, and the rising inside the cylindrical body 17 is repeated,
A part thereof is output as the exhaust flow C.

According to the above structure, an excellent gas-liquid separation function can be obtained, but the extraction device 2 only needs to separate water droplets in the air flow output from the centrifugal force / Coriolis force generation device 1. However, the present invention is not necessarily limited to the above structure. Even a normal type cyclone separator generally used for a dust collector or the like can be sufficiently used. A general cyclone separator has a cylindrical body 2 as shown in FIG.
5 is provided with a gas blowing port 26 at the body and a gas blowing pipe 27 at the top. The cylindrical body 25 has a cylindrical body, a conical lower part, and a lower part. Is drain 2
It is connected to 8. When the air inlet 26 is connected to the exhaust port 6 of the centrifugal force / Coriolis force generator 1 and the airflow output from the centrifugal force / Coriolis force generator 1 is received in the cylinder 25, the airflow is changed to the cylinder 25. Flowing downward while rotating on the inner wall of the body, water droplets contained in the gas are beaten against the inner wall of the body by the centrifugal force generated by the rotation during this time and fall on the drain 28, and the gas from which the water droplets are removed is removed. The air is released from the blow-off pipe 27 into the outside air.

In the embodiment, the high-speed airflow generator 7 is started, water in the tank 13 is pumped up by the pump 14, and the water is ejected from the nozzles 12 of the nozzle pipe 11 into the outer cylinder 8.
When jetting water, it is desirable to incline each nozzle so as to jet water in a direction opposite to the gas flow direction. By the activation of the high-speed airflow generation device 7, the air sucked from the outside air passes through the intake port 5, becomes a strong swirling airflow, flows through the outer cylinder 8, and water jetted into the swirling airflow is The water is split in the swirling airflow, is dispersed as fine water droplets in the airflow, and is pneumatically transported while swirling in the outer cylinder 8. The air flow is reversed at the end of the outer cylinder 8, introduced into the inner cylinder 9, and is pneumatically transported through the inner cylinder 9 while continuously rotating along the ridge of the screw guide 10, and is included in the air flow. Dropped water has its kinetic energy (1/2 mv ² )
The centrifugal force (mrw ² ) and the Coriolis force ( ² mvw) are added to the water droplets, which further promotes the splitting of water droplets.
Hereinafter, particularly, a large amount of ultra-fine water droplets of 0.1 μm or less will be included. Note that the screw guide 10 is
When the screw guide 10 is provided with a larger pitch from the intake side to the exhaust side, the angular velocity vector (w) of the swirling airflow gradually decreases, and the centrifugal force and Coriolis force are reduced. As a result, the gas-liquid separation efficiency can be improved.

The air flow containing the ultra-fine water droplets is supplied to the pneumatic transport pipe 4
The large water droplets flowing into the extraction device 2 through the exhaust port 6 of the air purifier and remaining in the airflow are removed, and the high humidity air including the ultrafine water droplets is sent out from the outlet 18 of the extraction device 2 as supply air to the outside. You.

The outer cylinder 8 is passed through the drain 16 of the inner cylinder 9.
The water droplets that have escaped are placed on the swirling airflow in the outer cylinder 8 again,
Water with high energy is returned to the inner cylinder 9 and split into ultra-fine water droplets. Water droplets attached to the tube wall of the outer cylinder 8 and water droplets separated by the extraction device 2 are returned to the tank 13.

Although the embodiment shows an example in which the screw guide 10 is provided only in the inner cylinder 9, a screw guide may be provided in the outer cylinder 8 in the same manner.

(Examples) Examples of the present invention will be described below.
The humidifier shown in FIG. 2 was operated under the following specifications and operating conditions, and the particle diameter of water droplets obtained from the outlet was measured.

1. Pneumatic transport tube (1) Outer tube tube diameter (2R) = 80 φmm Tube length (L) = 200 mm Inlet size = 35 x 35 mm (2) Outer tube nozzle Nozzle piping: 6 φmm Nozzle outlet diameter: 0.5 φmm Nozzle number: 8 Nozzle installation angle: 30 degrees (3) Inner cylinder Pipe diameter (2r) = 40 φmm Pipe length (L) = 210 mm Outlet dimension = 40 φmm (4) Inner cylinder guide Screw guide: 1 round Pitch (interval) (d ₁ ): 36 mm (5) Extraction device Outer diameter of cylinder 80φmm Length of cylinder 120mm Conical cylinder 2 stages (6) High-speed airflow generator (fan) Air volume Max 0.4m ³ / min Power 52VA (7) Pump power 100VA

[0040]

Table 2 shows the measurement results. Table 2 shows the results measured with a particle counter KC01A of Rion Co., Ltd.

[0042]

[Table 2]

Rion Corporation Particle Counter KC
Table 3 shows the measurement results by -18.

[0044]

[Table 3]

Table 4 shows a comparison between various components contained in city water and components contained in condensed water of highly humid air obtained from an outlet when city water is used in the humidifier of the present invention.
Shown in

[0046]

[Table 4] (Note) ND: Not detected

As is apparent from Tables 2 to 4, according to the present invention, high-humidity air containing a large amount of ultra-fine water droplets having a particle size of 0.2 μm or less is obtained at the outlet of the humidifier. It was found that the components contained in the water in the tank did not accompany the highly humid air.

[0048]

As described above, according to the present invention, high-humidity air containing a large amount of ultrafine water droplets of 1 μm or less, particularly 0.1 μm or less is obtained at the outlet of the humidifier, and the particle size of the water droplets is small. Therefore, even if water droplets adhere to the surface of the article, it does not wet the article, almost no components contained in the water used for humidification are taken out, and the particle size of the water drop is nosocomial infection. There is no danger that these fungi will be scattered because they are smaller than the size of the bacteria or viruses that cause the air. Rather, the negative ions generated by the Leonard effect or the Simpson effect can provide the sterilization effect of air and the surface of articles. .

[Brief description of the drawings]

FIG. 1 is a diagram showing a comparison of the size of fine particles such as dust in the atmosphere.

FIG. 2 is a diagram showing an embodiment of the present invention.

FIG. 3 is a diagram showing a procedure for installing a screw guide.

FIG. 4 is a diagram showing a gas-liquid separation procedure by an extraction device.

FIG. 5 is a sectional view taken along line XX of FIG. 4;

FIG. 6 is a diagram showing another example of the extraction device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Coriolis force generator 2 Extractor 3 Humidifier 4 Pneumatic transport tube 5 Intake port 6 Exhaust port 7 High-speed airflow generator 8 Outer cylinder 9 Inner cylinder 10 Screw guide 11 Nozzle pipe 12 Nozzle 13 Tank 14 Pump 15 Cooling coil 16 Drain 17 Cylindrical body 18 Conical cylinder 19 Inlet 20 Outlet 22 Straightening plate 23 Guide plate 24 Prop 25 Cylindrical body 26 Inlet 27 Blow-off tube 28 Drain

Continuation of front page (56) References JP-A-4-251132 (JP, A) JP-A-5-302736 (JP, A) JP-A-61-101723 (JP, A) JP-A-2001-241707 (JP, A) A) JP-A-5-44959 (JP, A) JP-A-2000-325479 (JP, A) JP-A-2000-220873 (JP, A) JP-A-2001-241708 (JP, A) (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 3/14 F24F 6/14

Claims (2)

(57) [Claims] 1. A humidifier having a centrifugal force / Coriolis force generator and an extraction device, wherein the centrifugal force / Coriolis force generator forms a swirling flow in an airflow flowing in a pipe and is supplied. water to a centrifugal force, Coriolis force, the extraction device by splitting water in the whirling air current is intended to transport air force, and an air force transport pipe, and the screw guide, water injection
A nozzle, and the pneumatic transport pipe has a high-speed airflow source.
Pipe that receives the airflow injected from above and pneumatically transports water droplets
And the screw guide is provided in the pneumatic transportation pipe.
Of the water droplets by guiding the air flow injected into the air into a spiral swirling flow
Coriolis force at the time of rotation
The centrifugal force is applied to the water droplets that are provided to work
And the Coriolis force act simultaneously,
The water jet nozzle is disposed in the pipe axis direction of the pneumatic transport pipe,
Is generated in the swirling flow of the airflow formed in the pneumatic transport pipe.
The extraction device is for jetting water to generate water droplets, and the extraction device sorts the divided water into particles having a particle size of 1 μm or less, particularly 0.1 μm or less.
A humidifier for extracting and outputting high-humidity air containing ultra-fine water droplets of 1 μm or less. 2. A humidifier having a centrifugal force / Coriolis force generating device and an extracting device, wherein the centrifugal force / Coriolis force generating device forms a swirling flow in an airflow flowing in a pipe, and supplies supplied water. Centrifugal and Coriolis forces act on the water to split water in the swirling air stream and transport it to the extraction device by air.
Pneumatic transportation pipe, screw guide, water injection nozzle and
And the pneumatic transport pipe is press-fitted from a high-speed airflow source.
Pipes that receive the airflow and transport water droplets pneumatically,
The pneumatic transport pipe is configured with an inner and outer double pipe,
The inner and outer tubes communicate with each other to form a folded airflow channel
The outer tube is connected to a high-speed airflow source, and the inner tube is
Is connected to the extraction device, and
Is provided with the water jet nozzle to form a water droplet generation area
A screw guide is installed inside the inner tube and split
The screw guide forms an action area.
Spirally winds the air flow injected into the pneumatic transport pipe.
Centrifugal force and chorio are applied to water droplets that are pneumatically transported by inducing circulation
And force force at the same time.
The water jet nozzle is disposed in the pipe axis direction of the pipe, and
Spouting water into the swirling flow of the airflow formed in the pneumatic transport pipe
It is intended to generate a water droplet, the extraction device, hereinafter disrupted water was removed by particle径選1 [mu] m, in particular those for extracting a high-humidity air output including the following ultrafine water droplets 0.1μm Te Humidifier characterized by the following.