JP2008168265A - Mixed phase mist spray system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mixed phase mist spray system for spraying mist mixed with a large amount of air without wetting an indoor wall or article. <P>SOLUTION: The mixed phase mist spray system is equipped with a microbubble producing device for producing microbubbles of air in a liquid, a liquid pressurizing device for pressurizing the liquid mixed with the microbubbles and a sprayer for spraying the pressurized liquid as fine particulate mist mixed with the microbubbles by an one fluid system. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a multi-phase mist spraying system for spraying mist containing bubbles.

In recent years, water in which ozone bubbles are mixed has been sprayed for sterilization and deodorization inside kitchens and food factories. The spray of water mixed with ozone bubbles is performed using an ejector, and ozone gas is sucked and mixed as bubbles at the negative pressure generated in the middle of the water flow from the nozzle to the diffuser. Sprayed as mist mixed with ozone bubbles.
On the other hand, spraying of high-pressure water mixed with ozone has also been proposed, in which high-pressure water and ozone-containing air are sent to the nozzle, and a plurality of spray streams of high-pressure water are sprayed independently from the nozzle, and a plurality of strips outside the nozzle are sprayed. The spray flow is merged. Also, the ozone-containing air is sucked by the negative pressure generated at the confluence of the high-pressure water spray flow and mixed with the spray flow combined with the high-pressure water, and then sprayed onto the object for cleaning or sterilization (for example, patents) Reference 1).

Japanese Patent Laid-Open No. 2004-283964

However, since the mist sprayed using the ejector is sprayed at a low pressure such as 0.07 MPa, the mist particle size is as large as 100 μm, so it takes time to evaporate and wets indoor walls and objects. There is a problem that it ends up. Moreover, there exists a problem that the amount of water to discharge | release will increase.
Moreover, there is a problem that even if ozone-containing air is mixed outside the nozzle, a large amount of ozone cannot be contained in the mist.

  An object of the present invention is to provide a mixed phase mist spraying system that sprays mist mixed with a lot of gas without wetting indoor walls and objects.

  The mixed phase mist spraying system according to the present invention includes a microbubble generator that generates gas microbubbles in a liquid, a pressurized water supply device that pressurizes the liquid in which the microbubbles are mixed, and the addition according to the concentration of the gas. A spraying device for spraying a liquid mixed with pressurized microbubbles as a fine particle mist mixed with microbubbles by a one-fluid method.

The effect of the mixed phase mist spraying system according to the present invention is that the liquid in which the microbubbles are mixed is pressurized at a high pressure, so that the size of the microbubbles is reduced and the size of the microbubbles is reduced. This means that microbubbles are mixed in and ozone can be transported as microbubbles to the point where the fine particle mist reaches.
Further, when a liquid pressurized to high pressure is sprayed, the particle diameter of the mist becomes fine and it takes a short time to evaporate, so that the walls and objects in the room are not wetted.

  The mixed-phase mist spraying system according to the present invention is a mixed-phase mist comprising a liquid phase and a gas-phase mixed phase in which bubbles (hereinafter referred to as bubbles and bubbles having a diameter of 50 μm or less) are mixed in droplets. This is a spraying system. In particular, the sprayed mixed phase mist is a fine particle mixed phase mist having a Sauter particle size of 30 μm or less, and since the transpiration rate is fast, the surroundings are not wetted by the spraying of the mixed phase mist. The liquid phase and the gas phase according to the present invention can be appropriately selected depending on the application, but in the following description, the liquid phase is composed of water and the gas phase is composed of ozone gas or oxygen gas. .

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a multiphase mist spraying system according to Embodiment 1 of the present invention. FIG. 2 is a block diagram showing the configuration of the pressurized water supply apparatus according to Embodiment 1 of the present invention. FIG. 3 is a functional block diagram of the control apparatus according to Embodiment 1 of the present invention. FIG. 4 is a sectional view taken along the central axis of the spray nozzle according to the first embodiment of the present invention. FIG. 5 is a diagram showing the measurement result of the particle size distribution of the sprayed mixed phase mist. FIG. 6 is a timing chart of mist spraying.

The mixed phase mist spraying system according to Embodiment 1 of the present invention is an ozone water mist spraying system that sprays a mixed phase mist in which the gas phase is composed of ozone gas and the liquid phase is composed of water, and ozone gas is mixed as microbubbles. And this ozone water mist spraying system is utilized as a system which sterilizes and deodorizes.
As shown in FIG. 1, an ozone water mist spray system 1 according to Embodiment 1 includes a spray nozzle 4 disposed on a ceiling 3 of a room 2 that forms a space managed in an atmosphere containing a predetermined amount of ozone gas. A pressurized water distribution pipe 5 through which pressurized water supplied to the spray nozzle 4 is distributed, a pressurized water supply apparatus 6 that supplies pressurized water through the pressurized water distribution pipe 5, and an ozone gas sensor that measures the ozone gas concentration in the space and transmits it to the pressurized water supply apparatus 6. 8 is provided.
The pressurized water supply device 6 pressurizes the ozone gas generator 11 that generates ozone gas, the water tank 12 that stores water, the microbubble generator 13 that generates microbubbles of ozone gas in the water in the water tank 12, and the water in which the microbubbles are mixed. And a control device 16 for controlling the pressurized water supply device 6.

The ozone gas generator 11 is a general device that generates ozone gas by using electric discharge.
The microbubble generator 13 is a general high-speed swirling flow type microbubble generator, but is controlled to generate microbubbles having a diameter of 50 μm or less.

  As shown in FIG. 2, the pressurized water supply device 14 includes a high pressure pump 40, a main valve 41 disposed on the downstream side of the high pressure pump 40, and a drain valve that opens and closes a flow path for draining water in the main water distribution pipe 42. 43, a selection valve 44 that selects the supply of pressurized water to the pressurized water distribution pipe 5.

The main valve 41 and the selection valve 44 are communicated with each other through the main water distribution pipe 42, and the drain valve 43 is communicated with the main water distribution pipe 42 through a drain pipe 46 branched from the middle of the main water distribution pipe 42. The main water pipe 42, the drain pipe 46, and the pressurized water pipe 5 are each made of stainless steel. The high pressure pump 40 and the main valve 41 are communicated with each other by a rubber blade hose 47 to smooth the pulsation generated by the positive displacement high pressure pump 40.
Further, in order to remove dust contained in the pressurized water, a 20 μm square opening filter (not shown) is interposed at the outlet of the high-pressure pump 40.
In addition, after pressurizing with the high-pressure pump 40, it may store in a high-pressure storage container etc., and you may send water to the pressurized water distribution pipe 5. FIG.

  As shown in FIG. 3, the control device 16 calculates the spray amount based on the ozone gas concentration measured by the ozone gas sensor 8, and controls the water supply amount control means 50, the high-pressure pump 40 and various valves that control the water supply amount. The spray sequence control means 51 for spraying the spray amount calculated in this way is provided. The control device 16 is composed of a CPU, a RAM, a ROM, and a computer having an interface circuit.

  As shown in FIG. 4, the spray nozzle 4 has a substantially cylindrical housing 20. Then, along the central axis of the cylindrical housing 20, a two-stage cylindrical pressurized water receiving cavity 21 in which the upstream diameter that receives the pressurized water supplied from the pressurized water distribution pipe 5 is larger than the downstream diameter, pressure-sensitive reverse The stop valve 22 is housed, and the valve housing cavity 24 and the piece 25 which are larger in diameter than the downstream side of the pressurized water receiving cavity 21 and whose outer edge is partitioned by the rib 23 protruding in the central axis direction are housed. , A jet generating cavity 28 composed of a columnar cavity 26 having the same diameter as the upstream side of the pressurized water receiving cavity 21 and a funnel-shaped cavity 27 connected to the cavity 26, and connected to the tip of the funnel-shaped cavity 27. An orifice 29 is provided continuously.

A pressure-sensitive check valve 22 that opens and closes an opening 21 a on the downstream side of the pressurized water receiving cavity 21 is inserted into the valve housing cavity 24.
When the pressure-sensitive check valve 22 abuts the opening 21 a on the downstream side of the pressurized water receiving cavity 21, a blocking ball 30 that blocks the flow of pressurized water, and one end abuts the blocking ball 30 and a predetermined spring pressure is applied to the blocking ball 30. The other end of the spring 31 is fixed to the rib 23. The spring constant of the spring 31 is set so that the predetermined spring pressure separates the blocking ball 30 and the opening 21a of the pressurized water receiving cavity 21 when the water pressure in the pressurized water receiving cavity 21 reaches 1 MPa. If the predetermined spring pressure is set low, it takes a long time to reach a high pressure when separated and water droplets having a large diameter are sprayed. Further, if the predetermined spring pressure is close to the spray water pressure, the blocking ball 30 cannot be sufficiently separated from the opening 21a, so that the amount of water is restricted. For this reason, the predetermined spring pressure is preferably 0.4 to 1.5 MPa.

  Further, in the jet generation cavity 28, the pressurized water is ejected as a swirling jet, and a piece 25 for colliding with the inner surface of the funnel-shaped cavity 27 is in contact with the inner surface of the cylindrical cavity 26, and the direction of the central axis of the spray nozzle 4 Move while sliding. A spiral groove 32 is dug in the side surface of the piece 25, and a swirl flow path for swirling and ejecting pressurized water is formed by the groove 32 and the inner surface of the cylindrical cavity 26.

  A pressure transducer (model PVD-100ka, measurement range 0 to 10 MPa) 17 attached from the pressurized water distribution pipe 5 is attached to measure the water pressure applied to the pressurized water receiving cavity 21 of the spray nozzle 4. , That is the spray water pressure. Normally, the relationship between the spray water pressure and the output water pressure of the high-pressure pump 40 is obtained in advance, and the spray water pressure is managed by managing the output water pressure of the high-pressure pump 40. A Bourdon tube pressure gauge or the like may be used for measuring the water pressure.

Next, a procedure for spraying pressurized water in the spray nozzle 4 will be described.
When pressurized water is poured into the pressurized water receiving cavity 21 and the water pressure reaches a predetermined value, the blocking ball 30 is pushed and the pressurized water flows into the valve housing cavity 24.
Then, pressurized water pushes one end face of the piece 25 from the hole 23 a formed at the center of the rib 23, and the piece 25 is moved along the central axis of the spray nozzle 4 toward the funnel-shaped cavity 27. The pressurized water passes through the groove 32 while being swirled, and is jetted from the end of the groove 32.
This jet collides with the inner surface of the funnel-shaped cavity 27 to become a collision jet and is sprayed from the orifice 29 as a mist.

Next, the sprayed mist will be described. The mist in this invention means the water droplet of a small diameter. The average particle diameter of the mist is the average body area particle diameter (referred to as the Sauter average diameter) measured by the laser diffraction method at a location 50 mm away from the tip of the orifice 29 on the central axis of the spray nozzle 4. In the laser diffraction method, a laser diffraction particle size measuring device (manufactured by Malvern Instruments, Master Size-S type, used laser: He-Ne laser) was measured in the same manner five times, and the average value was the average particle size of mist. It is used as.
When the spraying water pressure was 5 MPa from the spray nozzle 4 used in the first embodiment, the Sauter average particle size was 20 μm as shown in FIG. In addition, if the spray water pressure is low, the average particle diameter of the mist increases, and if the spray water pressure is high, the average particle diameter of the mist decreases and the spray flow rate increases, but if it is too high, a large shock wave is added to the piping, It is not preferable for safety. For these reasons, the spray water pressure is preferably between 2 MPa and 10 MPa. Furthermore, the spray water pressure is preferably between 5 MPa and 10 MPa so that the Sauter average particle size is 20 μm or less.

  The average particle size of the mist is measured using a laser diffraction particle size measuring device, but may be measured using a Doppler phase particle size measuring device or the like. At this time, since the average particle size varies depending on the type of measuring instrument, it is necessary to measure and compare mist sprayed under the same conditions. For example, the 90% volume particle size of the mist sprayed when the spray water pressure is 5 MPa from the spray nozzle 4 was 60 μm, and the 10% volume particle size was 3 μm.

Next, a sequence for supplying pressurized water from the high-pressure pump 40 will be described with reference to FIG.
The spray sequence control means 51 of the control device 16 first opens the main valve 41. At the same time, the drain valve 43 is opened.
Next, the spray sequence control means 51 turns on the high-pressure pump 40 and supplies pressurized water from the blade hose 47 to the main water distribution pipe 42. As a result, the air remaining in the main water distribution pipe 42 is pushed out together with the water from the drain valve 43, and a uniform water pressure is applied in the main water distribution pipe 42.
Next, the spray sequence control means 51 closes the drain valve 43. Thereby, the water pressure in the main water distribution pipe 42 reaches a desired water pressure, for example, 6 MPa.
Next, the spray sequence control means 51 opens the selection valve 44 connected to the spray nozzle 4, and pressurized water is supplied to the spray nozzle 4 via the pressurized water distribution pipe 5. At this time, the water pressure applied by being injected into the pressurized water receiving cavity 21 reaches approximately 0 MPa to 6 MPa in 4 seconds. When the water pressure becomes 1 MPa or more in this way, the pressure-sensitive check valve 22 of the spray nozzle 4 is opened and mist spraying is started.

Conversely, when mist spraying is terminated, the spray sequence control means 51 opens the drain valve 43 to decrease the water pressure in the main water distribution pipe 42. Then, since the water pressure in the pressurized water receiving cavity 21 is reduced to 1 MPa or less, the pressure sensitive check valve 22 is closed and the mist spraying is finished.
Then, after about 3 seconds from the opening of the drain valve 43, the high-pressure pump 40 is turned off and the selection valve 44 is closed. Thereafter, the main valve 41 and the drain valve 43 are closed.

Thus, after the water pressure in the main distribution pipe 42 is once stabilized to a desired value, the pressure of the pressurized water supplied to the spray nozzle 4 is changed from 0 MPa to 6 MPa in a few seconds by supplying water to the pressurized water distribution pipe 5. Can change. And since the pressure sensitive check valve 22 is suddenly opened and the spraying time can be shortened when the water pressure is low, most of the mist having a large particle size seen when spraying when the water pressure is low. It is not sprayed.
Further, when the drain valve 43 is opened, the water pressure in the main water distribution pipe 42 is suddenly lowered, the pressure sensitive check valve 22 is suddenly closed, and the spraying time in a low water pressure state can be shortened. The mist having a large particle size seen when sprayed at a low water pressure is hardly sprayed.

  Next, ozone gas microbubbles mixed in the sprayed mist will be described. Since the microbubbles of ozone gas mixed in the water in the water tank 12 have a diameter of 50 μm or less, the microbubbles of ozone gas mixed in the water in the pressurized water distribution pipe 5 have water pressurized to 6 MPa. The diameter is 13 μm or less. On the other hand, since the sprayed mist has an average particle diameter of 20 μm, ozone gas microbubbles are included in the mist and diffuse together with the mist. Then, ozone gas is released as the mist evaporates.

  If the water pressure is 2 MPa, the diameter of the microbubbles is reduced to 18 μm or less, and the average particle diameter of the sprayed mist is about 30 μm as shown in FIG. In addition, microbubbles of ozone gas are contained in the mist and diffuse together with the mist.

In such an ozone water mist spraying system, ozone gas is made into microbubbles having a diameter of 50 μm or less and mixed with water, and then the water is pressurized to a high pressure of 2 MPa or more to make mist while reducing the diameter of the microbubbles. Therefore, it is possible to spray mist with ozone gas microbubbles mixed therein.
Moreover, since water is pressurized and sprayed at a high pressure of 2 MPa or more, the average particle diameter of the mist is 30 μm or less, the transpiration rate is fast, and the walls and objects in the room are not wetted.
In addition, since the microbubbles of ozone gas having a diameter of 50 μm or less are mixed in the water in the water tank 12, the microbubbles float for a long time even in water at atmospheric pressure, and the concentration of ozone gas contained in the sprayed water is reduced. Can be increased. For this reason, ozone gas can be diffused in space with a small amount of water.

Embodiment 2. FIG.
FIG. 7 is a configuration diagram of a multiphase mist spraying system according to Embodiment 2 of the present invention. FIG. 8 is a functional block diagram of a control device according to Embodiment 2 of the present invention.
As shown in FIG. 7, the ozone water mist spraying system 1B according to Embodiment 2 of the present invention has a temperature / humidity sensor 18 added to the ozone water mist spraying system 1 according to Embodiment 1, and a control device 16B accordingly. Are the same and the other parts are the same, the same reference numerals are given to the same parts, and the description thereof is omitted.

The temperature / humidity sensor 18 according to the second embodiment measures the temperature and humidity of the atmosphere in the room 2 and transmits the measured temperature and humidity to the control device 16B.
As shown in FIG. 8, the control device 16B according to the second embodiment calculates the spray amount based on the dry bulb temperature and the wet bulb temperature measured by the temperature / humidity sensor 18, and supplies the water supplied from the high-pressure pump 40. Water supply control means 50B for controlling the microbubble generation control means 52 for controlling the microbubble generator 13 based on the ozone gas concentration measured by the ozone gas sensor 8 and the calculated spray amount to adjust the microbubble content concentration, A spray sequence control means 51 for controlling the high-pressure pump 40 and various valves, and an air diagram database 53 in which moist air diagrams are stored. The control device 16B includes a computer having a CPU, a RAM, a ROM, and an interface circuit.

The water supply amount control means 50B calculates the relative humidity RH (%) based on the wet air diagram from the dry bulb temperature DT (° C.) and the wet bulb temperature WT (° C.) input from the temperature / humidity sensor 18.
Next, when the relative humidity RH is 90% or higher, the water supply amount control means 50B does not spray the mist because the relative humidity is too high even if the mist is sprayed, so that the mist evaporation rate becomes slow. . Conversely, when the relative humidity RH is less than 90%, a sufficient transpiration rate can be obtained by spraying the mist, so that the mist is sprayed.
Next, the water supply amount control means 50B calculates the spray amount based on the relative humidity RH (%) and controls the water supply amount from the high-pressure pump 40.
The microbubble generation control means 52 calculates the required amount of ozone gas from the ozone gas concentration from the ozone gas sensor 8, and then calculates the microbubble content from the spray amount calculated by the water supply amount control means 50B and the required amount of ozone gas. Then, the amount of microbubbles generated is adjusted by controlling the microbubble generator 13.

  Such an ozone water mist spraying system 1B according to the second embodiment can obtain the same effects as those of the first embodiment and can also control the humidity of the room.

Embodiment 3 FIG.
FIG. 9 is a configuration diagram of a multi-phase mist spray system according to Embodiment 3 of the present invention. FIG. 10 is a functional block diagram of a control device according to Embodiment 3 of the present invention.
As shown in FIG. 9, an ozone water mist spraying system 1C according to Embodiment 3 of the present invention includes an anemometer 19 and compartment selection valves 9a and 9b added to the ozone water mist spraying system 1 according to Embodiment 1. Accordingly, the control device 16C is different, and the other parts are the same, so the same reference numerals are given to the same parts, and the description will be omitted.

The ozone water mist spraying system 1 </ b> C according to the third embodiment is applied to a space that is ventilated on both side walls such as a livestock breeding shed 10. And since the direction of the wind which flows in the space changes with the wind direction of outside air, mist is sprayed from the upstream of the wind direction.
The wind direction anemometer 19 according to the third embodiment measures the wind direction in the livestock breeding shed 10 and transmits it to the control device 16C.
Two section selection valves 9a and 9b are interposed in the pressurized water distribution pipe 5 according to the third embodiment, and spray nozzles 4 are connected to the downstream of the section selection valves 9a and 9b, respectively.
As shown in FIG. 10, the control device 16C according to the third embodiment calculates the spray amount based on the ozone gas concentration measured by the ozone gas sensor 8, and controls the water supply amount control means 50 for controlling the water supply amount, the wind direction anemometer. In addition to selecting the partition selection valves 9a and 9b according to the wind direction from 19, the spray sequence control means 51C for spraying the spray amount calculated by controlling the high pressure pump 40 and various valves is provided. The control device 16C includes a computer having a CPU, a RAM, a ROM, and an interface circuit.

  Thus, ozone can be efficiently supplied into the space by spraying mist from the upstream side according to the direction of the wind flowing in the space.

Embodiment 4 FIG.
FIG. 11 is a configuration diagram of a multiphase mist spraying system according to Embodiment 4 of the present invention. FIG. 12 is a functional block diagram of a control apparatus according to Embodiment 4 of the present invention.
The mixed phase mist spraying system according to Embodiment 4 of the present invention is an oxygen water mist spraying system 7 for spraying a mixed phase mist in which the gas phase is composed of oxygen gas and the liquid phase is composed of water and oxygen gas is mixed as microbubbles. is there. And this oxygen water mist spraying system 7 is utilized as a system which provides the room of the high concentration oxygen atmosphere for fatigue recovery or relaxation.
As shown in FIG. 11, an oxygen water mist spray system 7 according to the fourth embodiment includes an oxygen gas generator 35 and an ozone gas sensor 8 instead of the ozone water mist spray system 1 and the ozone gas generator 11 according to the first embodiment. Instead of the oxygen gas sensor 36 and the control device 16 in place of the control device 16D, the control device 16D is different, and the other parts are the same.

The oxygen gas generator 35 is a general device that separates and supplies oxygen gas from the air using an adsorbent that preferentially adsorbs nitrogen gas. Note that oxygen gas may be generated by any method as long as oxygen gas can be supplied.
The oxygen gas sensor 36 is a general sensor that measures the oxygen gas concentration in the atmosphere and transmits it to the control device 16D.
As shown in FIG. 12, the control device 16D according to the fourth embodiment is different from the control device 16 according to the first embodiment in the water supply amount control means 50D. The description is omitted.
The water supply amount control means 50 </ b> D calculates the spray amount based on the oxygen concentration measured by the oxygen gas sensor 36 and controls the water supply amount from the high-pressure pump 40.

In such an oxygen water mist spraying system 7, oxygen gas is converted into microbubbles having a diameter of 50 μm or less and mixed with water, and then the water is pressurized to a high pressure of 2 MPa or more to make the mist while reducing the diameter of the microbubbles. Therefore, it is possible to spray mist in which microbubbles of oxygen gas are mixed.
Moreover, since water is pressurized and sprayed at a high pressure of 2 MPa or more, the average particle diameter of the mist is 30 μm or less, the transpiration rate is fast, and the walls and objects in the room are not wetted.
In addition, since the microbubbles of oxygen gas having a diameter of 50 μm or less are mixed in the water in the water tank 12, the microbubbles float for a long time even in water at atmospheric pressure, and the oxygen gas contained in the sprayed water The concentration can be increased. For this reason, oxygen gas can be diffused in space with a small amount of water.

Embodiment 5. FIG.
FIG. 13 is a configuration diagram of a multiphase mist spraying system according to Embodiment 5 of the present invention. FIG. 14 is a functional block diagram of a control device according to Embodiment 5 of the present invention.
As shown in FIG. 13, the oxygen water mist spraying system 7E according to the fifth embodiment of the present invention is provided with a temperature / humidity sensor 18 in addition to the oxygen water mist spraying system 7 according to the fourth embodiment. Are the same and the other parts are the same, the same reference numerals are given to the same parts, and the description thereof is omitted.

The temperature / humidity sensor 18 according to the fifth embodiment measures the temperature and humidity of the atmosphere in the room 2 and transmits the measured temperature and humidity to the control device 16E.
As shown in FIG. 14, the control device 16E according to the fifth embodiment calculates the spray amount based on the dry bulb temperature and the wet bulb temperature measured by the temperature / humidity sensor 18, and supplies the water supplied from the high-pressure pump 40. Water supply control means 50E for controlling the microbubble generation control means 52E for controlling the microbubble generator 13 based on the oxygen gas concentration measured by the oxygen gas sensor 36 and the calculated spray amount to adjust the microbubble content concentration. , A spray sequence control means 51 for controlling the high-pressure pump 40 and various valves, and an air diagram database 53 in which moist air diagrams are stored. The control device 16E is composed of a computer having a CPU, a RAM, a ROM, and an interface circuit.

The water supply amount control means 50E is the same as the water supply amount control means 50B according to the second embodiment.
The microbubble generation control means 52E calculates the required amount of oxygen gas from the oxygen gas concentration from the oxygen gas sensor 36, and then contains microbubbles from the spray amount calculated by the water supply amount control means 50E and the required amount of oxygen gas. The concentration is calculated, and the microbubble generator 13 is controlled to adjust the amount of microbubbles generated.

  Such an oxygen water mist spray system 7E according to the fifth embodiment can obtain the same effect as that of the fourth embodiment and can also control the humidity of the room.

Embodiment 6 FIG.
FIG. 15 is a configuration diagram of a multiphase mist spraying system according to Embodiment 6 of the present invention. FIG. 16 is a functional block diagram of a control device according to Embodiment 6 of the present invention.
As shown in FIG. 15, the oxygen water mist spraying system 7F according to Embodiment 6 of the present invention includes an anemometer 19 and partition selection valves 9a and 9b added to the oxygen water mist spraying system 7 according to Embodiment 4. Accordingly, the control device 16F is different, and the other parts are the same, so the same reference numerals are given to the same parts, and the description will be omitted.

The oxygen water mist spraying system 7F according to Embodiment 6 is applied to a space ventilated on both side walls such as a training floor 15 where only a roof is installed. And since the direction of the wind which flows in the space changes with the wind direction of outside air, mist is sprayed from the upstream of the wind direction.
An anemometer 19 according to the sixth embodiment is the same as the anemometer 19 according to the third embodiment.
Two section selection valves 9a and 9b are interposed in the pressurized water distribution pipe 5 according to the sixth embodiment, and the spray nozzle 4 is connected downstream of the section selection valves 9a and 9b.
As shown in FIG. 16, the control device 16F according to the sixth embodiment calculates a spray amount based on the oxygen gas concentration measured by the oxygen gas sensor 36, and controls a water supply amount control means 50D for controlling the water supply amount. In addition to selecting the partition selection valves 9a and 9b in accordance with the wind direction from the total 19, there are spray sequence control means 51F for spraying the spray amount calculated by controlling the high pressure pump 40 and various valves. The control device 16F includes a computer having a CPU, a RAM, a ROM, and an interface circuit.

Thus, oxygen can be efficiently supplied into the space by spraying mist from the upstream side in accordance with the direction of the wind flowing in the space.
Here, spraying the mist containing the bubble is described, but the bubble is not necessarily contained in the mist. For example, when the bubble diameter is 30 μm and the mist diameter is 30 μm, the bubbles are not encapsulated in the mist but are released together with the mist spray, so that oxygen can be efficiently supplied into the space.

It is a block diagram of the mixed phase mist spraying system concerning Embodiment 1 of this invention. It is a block diagram which shows the structure of the pressurized water supply apparatus concerning Embodiment 1 of this invention. It is a functional block diagram of the control apparatus concerning Embodiment 1 of this invention. It is sectional drawing along the central axis of the spray nozzle concerning Embodiment 1 of this invention. It is a figure which shows the measurement result of the particle size distribution of the sprayed mixed phase mist. It is a timing chart of mist spraying. It is a block diagram of the mixed phase mist spraying system concerning Embodiment 2 of this invention. It is a functional block diagram of the control apparatus concerning Embodiment 2 of this invention. It is a block diagram of the mixed phase mist spraying system concerning Embodiment 3 of this invention. It is a functional block diagram of the control apparatus concerning Embodiment 3 of this invention. It is a block diagram of the multiphase mist spraying system concerning Embodiment 4 of this invention. It is a functional block diagram of the control apparatus concerning Embodiment 4 of this invention. It is a block diagram of the mixed phase mist spraying system concerning Embodiment 5 of this invention. It is a functional block diagram of the control apparatus concerning Embodiment 5 of this invention. It is a block diagram of the mixed phase mist spraying system concerning Embodiment 6 of this invention. It is a functional block diagram of the control apparatus concerning Embodiment 6 of this invention.

Explanation of symbols

  1, 1B, 1C Ozone water mist spray system, 2 rooms, 3 ceilings, 4 spray nozzles, 5 pressurized water distribution pipe, 6 pressurized water supply device, 7, 7E, 7F Oxygen water mist spray system, 8 ozone gas sensor, 9 compartment selection valve DESCRIPTION OF SYMBOLS 10 Livestock breeding shed, 11 Ozone gas generator, 12 Water tank, 13 Micro bubble generator, 14 Pressurized water feeder, 15 Training floor, 16, 16B, 16C, 16D, 16E, 16F Control device, 17 Pressure transducer, 18 Temperature / humidity sensor, 19 wind direction anemometer, 20 housing, 21 cavity, 21a opening, 22 pressure-sensitive check valve, 23 rib, 23a hole, 24 valve storage cavity, 25 pieces, 26, 27 cavity, 28 jet generating cavity, 29 Orifice, 30 Blocking ball, 31 Spring, 32 groove, 35 Oxygen generator, 36 Oxygen gas Sensor, 40 High-pressure pump, 41 Main valve, 42 Main water pipe, 43 Drain valve, 44 Select valve, 46 Drain pipe, 47 Blade hose, 50, 50B, 50D, 50E Water supply control means, 51, 51C, 51F Spray sequence Control means, 52, 52E Microbubble generation control means, 53 Air diagram database.

Claims (3)

A microbubble generator for generating gaseous microbubbles in the liquid;
A pressurized water supply device for pressurizing the liquid in which the microbubbles are mixed;
A spraying device for spraying the liquid mixed with the pressurized microbubbles according to the concentration of the gas as a fine particle mist mixed with microbubbles in a one-fluid system;
A multi-phase mist spraying system comprising: The gaseous microbubbles are ozone gas bubbles, the liquid is water,
2. The mixed phase mist spraying system according to claim 1, wherein the mist is sterilized or deodorized by spraying the fine particle mist. The gas microbubble is an oxygen gas bubble, the liquid is water,
2. The mixed phase mist spraying system according to claim 1, wherein an atmosphere having a function of recovery from fatigue or relaxation is formed by spraying the fine particle mist.

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