JPH06206708A - Method for generating ultrasonic wave in water flow, its device and device for producing ozone water - Google Patents

Abstract

PURPOSE:To substantially perfectly dissolve ozone in the flow of water by sucking the ozone into a water flow pipe with ejectors and generating impact waves in the pipe with the cavitation of the flow. CONSTITUTION:A piping 10 and a pump P are connected to the upper end of a water flow pipe 1, and water is supplied into the water flow pipe 1. Ozone from an ozone generator 11 and from an undissolved ozone-rising pipe 12, respectively, are sucked into the water flow pipe 1. Impact waves are generated in the flow water of the water flow pipe 1 by the cavitation of the flow at the expanded part (e) and the contracted part (r) of the flow space in the water flow pipe 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flowing water ultrasonic wave generation method and apparatus used for ozone water production.

[0002]

2. Description of the Related Art Conventional ozone reaction absorption towers (diffusing plate type, injection type) have a difficulty in dissolving ozone in water easily (solubility of about 30 to 50%) and release undissolved ozone, which is harmful to health. (New Technology of Ozone Utilization, P106-109, published by Sanshu Shobo on November 20, 1985). However, cavitation of water accelerates dissolution.

What is cavitation? Dissolved gas is shockedly released into a cavity (vacuum part) created in running water, and the reaction gas reacts with the released gas to generate a high pressure at the next moment and shockly dissolves again in running water. It is a repeated ultrasonic shock wave phenomenon (also called cavitation phenomenon), and bubbles generated in a depressurized state are several 1 in a sealed space.
The pressure reaches from 00 atm to several 1000 atm.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to cause ozone to be almost dissolved in running water by causing a shock wave due to cavitation in the ozone sucked by an ejector into the running water pipe.

[0005]

In order to achieve the above-mentioned object and to achieve the above-mentioned object, the present invention generates a shock wave by cavitation in running water in the expanding / reducing portion of the running water space in the running water pipe by running water in the running water pipe. The flowing water ultrasonic wave generation method characterized in that the cavitation is amplified by a plurality of stages of expanding and contracting flowing water ultrasonic wave generation method according to the invention described above. The lower end inserted into the water tank from the expanding and reducing part provided at the lower end opening of the water pipe. The flowing water ultrasonic wave generating method according to the first or second invention, in which water is supplied into the opening mantle. The lower end opening of the water supply pipe is open-connected to the side surface of the both-end closed short pipe, and the inside of the short pipe faces the opening. A baffle plate is provided, a water flow through hole is bored on the side surface of the short pipe on the downstream side of the baffle plate, a lower end opening outer jacket surrounding the short pipe is provided, and both sides of the water supply pipe are provided above the outer jacket. It has a detour Flowing ultrasonic wave generator An ozone suction ejector is provided in the water supply pipe, running water through holes are formed in both end closing plates of the short pipe, and the detours are provided in multiple stages, and a separate ozone rising pipe is provided in the upper end plate of the mantle. And an upper end of the rising pipe is connected to a second ozone suction ejector provided in the water supply pipe.

[0006]

In the present invention, the lower end opening mantle 6 and the both ends closing short pipe 3 are inserted into the water tank 8, the water surface 9 is held on the upper part of the mantle 6, and the pipe 10 and the pump P are connected to the upper end of the water supply pipe 1. Then, water is fed into the water pipe 1.

In this way, the ozone of the ozone generator 11 is sucked into the water pipe 1 from the first ozone suction ejector 2, and the first cavitation is generated in the enlarged portion e of the running water space due to the enlargement of the inner diameter of the water pipe 1. It is generated and the mixture of ozone and running water is stirred.

Next, the ozone in the rising pipe 12 is sucked from the second ozone suction ejector 2 ', second cavitation occurs in the inner diameter enlarged portion e of the water supply pipe 1, and a phenomenon of amplification of cavitation appears and ozone is generated. The ozone is partially dissolved in the running water by mixing and stirring with the running water by the shock wave.

Further, when the running water collides with the branch surface 7'of the both-side detour 7 and detours to both sides, the running water space (the detour 7,
Since 7) is enlarged and doubled, a cavity is generated and the pressure is remarkably reduced, and cavitation is amplified and generated by the reaction pressure from the converging / reducing portion r to the water supply pipe 1, and the ozone is melted at a superhigh pressure by a shock wave. After this merging, it again flows into the second detours 7 and 7, and the same cavitation as described above is amplified and generated to promote the dissolution.

The running water that has passed through the second both-side detours 7, 7 joins the water pipe 1'at the lower end, descends and flows down into the short pipe 3 with both ends closed, and collides with the baffle plate 4 at high pressure. When circumventing the both sides of the baffle plate 4 and further abutting the both end closing plates 3 ', 3'to discharge the water through the through holes 5, 5'into the outer jacket 6, cavitation is provided on both upper and lower sides of the baffle plate 4. The inside and outside of the short tube 3 are in a swelling state due to the resulting intense shock wave, and ozone bubbles are dissolved in water by ultrahigh pressure and descend in the outer jacket 6 and flow into the water tank 8 through the lower end opening 6'and the water tank 8 The water inside becomes ozone water. The swelling ozone bubbles at the upper end of the outer jacket 6 circulate from the rising pipe 12 to the second ejector 2 '.

[0011]

EXAMPLE A lower end opening mantle 6 is inserted into a water tank 8 and a lower end opening 1'of a water feeding pipe 1 is inserted into a central portion of an upper end plate 6 "to fix the water feeding pipe 1 and the outer mantle 6 together. This water pipe 1
A general-purpose pump P is connected to the upper end of the pump via a pipe 10, and a suction pipe 10 'of the pump P is inserted into the water tank 8 to form a water circulation path. It is not always necessary to insert the suction pipe 10 'into another independent water tank to form a circulation path.

First and second ozone suction ejectors 2 and 2'are connected to the water supply pipe 1 from above, and an ozone suction annular port 2 "is opened in the enlarged inner diameter portion e of the water supply pipe 1 as shown in FIG. However, ozone is sucked into the hollow portion (vacuum decompression portion) between the flowing water formed in the enlarged portion e and the inner peripheral surface of the enlarged water supply pipe 1, and the flowing water causes cavitation. An ozone generator 11 is connected to the.

A second ejector 2'is provided below the first ejector 2 and communicates with the upper end plate 6 "of the outer jacket 6 by means of a rising pipe 12 so that ozone remaining on the upper end of the outer jacket 6 is discharged into the second ejector 2 '. The second ejector 2 ′ also has an ozone suction annular port 2 ″ opened in the inner diameter enlarged portion e of the water supply pipe 1 so that the second ejector 2 ′ can be sucked. The inner diameter is larger than the inner diameter of the first ejector 2.

Between the second ejector 2'and the lower end opening 1'of the water pipe 1 as described above, two side detours 7 and 7 of the water pipe 1 are provided so as to connect the confluent water pipe 1 to the second side. Detour 7,
7 is provided to join the water pipe 1 at the lower end opening 1 '. A plurality of such double-sided detours 7, 7 can be provided.

At the lower end opening 1'of the water pipe 1, the outer jacket 6 is provided.
The upper central portion of the lateral short tube 3 whose both ends are closed by the closing plates 3'is connected, the opening 1'is opened in the short tube 3, and the obstruction facing the opening 1'is blocked. A plate 4 is installed inside the center of the short pipe 3 as shown in FIGS. 3 and 4, and is provided on the lower side surface of the short pipe 3 on the downstream side of the baffle plate 4 and the closing plates 3 ', 3'. A plurality of large and small water flow through holes 5 and 5'are provided.

0.2 to 0.35 kg / cm from the pump P
As described above, by feeding the water ^{2 into} the water feeding pipe 1, ozone is dissolved in the running water by the shock wave due to the above-mentioned cavitation. Reference numeral 13 in the figure is a collective box of the rising pipes 12, 12.

[0017]

Since the present invention is based on the method and apparatus described above, there is an effect that ultrasonic waves due to cavitation can be generated in running water only by supplying water to the water tank 8 via the water supply pipe 1 by the ordinary pump P. Further, there is an effect that the ozone can be almost dissolved in the water in the water tank 8 by the cavitation and its amplifying action only by sucking the ozone from the ozone suction ejector 2, 2 '.

[Brief description of drawings]

FIG. 1 is a front view showing an ozone water producing apparatus of the present invention.

FIG. 2 is a perspective view of a double-sided detour.

FIG. 3 is a vertical sectional front view of a short tube with both ends closed.

FIG. 4 is a side view taken along the line AA of FIG.

5 is a plan view taken along the line BB of FIG.

FIG. 6 is an enlarged vertical sectional view of an ozone suction ejector.

[Explanation of symbols]

 1 Water pipe 1'Lower end opening 2, 2'Ozone suction ejector e Expanding part r Shrinking part 3 Both ends closing short pipe 4 Baffle plates 5, 5'Flowing water through hole 6 Lower end opening jacket 7 Both side detours

Claims (5)

[Claims] 1. A flowing-water ultrasonic wave generation method, characterized in that a shock wave due to cavitation is generated in flowing water in an enlarged / reduced portion of a flowing water space in the water feeding pipe by flowing water in the water feeding pipe. 2. The flowing water ultrasonic wave generation method according to claim 1, wherein cavitation is amplified by a plurality of stages of enlargement / reduction units. 3. Water is supplied from a scaling portion provided at the lower end opening of the water supply pipe into a lower end opening jacket inserted into the water tank.
The flowing water ultrasonic wave generation method according to (1) or (2). 4. A lower end opening of a water supply pipe is open-connected to a side surface of a short pipe with both ends closed, a baffle plate facing the opening is provided inside the short pipe, and the short pipe located on the downstream side of the baffle plate. A flowing water ultrasonic wave generating device, wherein a flowing water through hole is bored on a side surface of a pipe, a lower end opening outer jacket surrounding the short pipe is provided, and both side detours of the water feeding pipe are provided above the outer jacket. 5. A water supply pipe is provided with an ozone suction ejector, a water passage through hole is formed in both end closing plates of the short pipe, and the detours are provided in a plurality of stages, and a separate ozone rising pipe is provided in the upper end plate of the mantle. And the upper end of the rising pipe is connected to the water pipe.
The ozone water producing apparatus according to claim (4), which is connected to the ozone suction ejector.