JP2013027826A - Device for producing isotonic ozone water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for production of an isotonic ozone water downsized for general households and capable of simply producing the isotonic ozone water keeping high ozone concentration over a long time.SOLUTION: The device M for production of the isotonic ozone water comprises: a solution transfer part 1 for continuously, quantitatively transferring a solution comprising 0.9%-saline solution dissolving a salt in water; an ozone gas-generating part 2 for generating an ozone gas in an ozone generator 24 by supplying a velocity-controlled oxygen gas from a portable oxygen cylinder 21; a gas-liquid mixing part 3 for generating a gas-liquid mixing water by mixing the solution quantitatively transferred from the solution transfer part 1 with the ozone gas generated at the ozone gas-generating part 2 using a static mixer 31; a gas-liquid separation part 4 for separating the gas-liquid mixing water generated at the gas-liquid mixing part 3 into a waste gas insoluble in the solution and the isotonic ozone water dissolving ozone in the solution; a waste gas treatment part 5 for decomposing residual ozone included in the waste gas separated at the gas-liquid separation part 4 using a catalyst; and an isotonic ozone water-discharging part 6 for discharging outside the device, the isotonic ozone water separated at the gas-liquid separation part 4.

Description

  The present invention relates to an apparatus for producing isotonic ozone water in which ozone is dissolved in a solution comprising 0.9% saline.

Conventionally, ozone water in which ozone [O ₃ ] is dissolved in water [H ₂ O] has excellent cleaning power and sterilization power due to ozone, and thus has been used in various fields such as medicine, food, and manufacturing. . For example, in the medical field, washing hands and medical instruments with ozone water kills bacteria and microorganisms and helps prevent nosocomial infections in hospitals. In recent years, there have also been cases where ozone water is used as a disinfectant during ophthalmic surgery and treatment. In this case, if physiological saline isotonic with body fluid is used as the raw material water, It is known that stimulation is reduced (see, for example, Patent Document 1 below).

  By the way, the apparatus which produces | generates ozone water is installed in the medical field so that ozone water can be used as washing | cleaning water or disinfecting liquid as mentioned above. However, most of the devices drain large amounts of ozone water of about 3 to 5 liters per minute, and since the amount of flowing ozone water is large, it is particularly suitable for the purpose of directly washing the patient's eyes in ophthalmology. There wasn't. In addition, when washing the eyes using such a large flow rate device, the ozone water once drained is transferred to another instrument for use. Since it decreases, high-concentration ozone water must be generated in advance, which is wasteful in cost.

  On the other hand, the present applicant has developed a device capable of generating ozone water in which a predetermined concentration of ozone is dissolved in a stock solution at a small flow rate, and has obtained a patent (see, for example, Patent Document 2 below). This ozone water generator includes a stock solution transfer unit that continuously transfers the stock solution in a constant amount, an ozone gas generation unit that generates ozone gas containing ozone, and a gas-liquid mixing unit that mixes ozone gas with the stock solution to generate gas-liquid mixed water. And a gas-liquid separator that separates the gas-liquid mixed water into waste gas and ozone water.

Japanese Patent Laid-Open No. 2005-21798

Japanese Patent No. 4256453

  In a conventional ozone water generator developed by the present applicant, an ozone generator that generates ozone using oxygen gas is provided as an ozone gas generator.

  However, in this apparatus, a large oxygen cylinder for medical use of about 500 L is used as an oxygen cylinder connected to the ozone generator. For this reason, in addition to enlarging the size of the entire apparatus, it has been difficult for general consumers to purchase such oxygen cylinders for medical use. In addition, in the conventional apparatus, physiological saline that is isotonic with body fluid is used as a stock solution, but this physiological saline is also not available to general consumers from pharmacies or the like. These were factors that hindered the spread of conventional ozone water generators for general households.

  The present invention has been made in order to solve such problems, and the object of the present invention is to reduce the size for general home use and to easily produce isotonic ozone water that maintains a high ozone concentration for a long time. The object is to provide an apparatus for producing Zhang ozone water.

  In order to achieve the above object, an isotonic ozone water production apparatus according to the present invention is an apparatus for producing isotonic ozone water in which ozone is dissolved in a solution, and 0.9% sodium chloride in which salt is dissolved in water. A solution transfer unit that continuously and quantitatively transfers a solution made of water, an ozone gas generation unit that generates ozone gas with an ozone generator by supplying oxygen gas controlled in speed from a portable oxygen cylinder, and a fixed amount from the solution transfer unit Mix the transferred solution and the ozone gas generated in the ozone gas generator by a static mixer to generate gas-liquid mixed water, and do not dissolve the gas-liquid mixed water generated in the gas-liquid mixing unit in the solution A gas-liquid separation unit that separates waste gas and isotonic ozone water in which ozone is dissolved in a solution, and a waste gas treatment unit that decomposes residual ozone contained in the waste gas separated by the gas-liquid separation unit into oxygen using a catalyst And care Isotonic ozone water discharge portion for discharging the isotonic ozone water separated by the separation unit to the outside of the apparatus, characterized by comprising a.

  In the present invention, the gas-liquid separation part is composed of a cylindrical gas-liquid separation pipe, and a connection pipe is fitted and fixed to a water supply port of the gas-liquid separation pipe. A drainage tube is provided at the discharge port in the pipe of the connection pipe. A structure in which a static mixer with an attached tube is accommodated can be adopted.

  Further, in the above structure, a cap-type block is fitted and fixed to the bottom of the gas-liquid separation tube, and an inclined surface that is chamfered in a curved shape toward the central discharge hole is provided on the inner bottom surface of the block. It may be done.

  According to the isotonic ozone water production apparatus of the present invention, 0.9% saline solution in which salt is dissolved in commercially available mineral water can be used for the solution that is the raw material of isotonic ozone water, and the raw material of ozone gas As for the oxygen gas to be obtained, a portable small oxygen cylinder that can be easily obtained can be used, so that isotonic ozone water can be produced easily and at low cost. Further, the produced isotonic ozone water has an ozone concentration of about 3.0 ppm or more immediately after collection, and can maintain a high ozone concentration of about 2.0 ppm even after 2 hours.

The block diagram which shows the whole structure of the isotonic ozone water manufacturing apparatus of this invention. The expanded sectional view which shows the relationship between a water supply cap and a water supply adapter. The expanded sectional view which shows the structure of the bottom part of a gas-liquid separation pipe | tube. The graph which compared the time-dependent change of the ozone concentration of isotonic ozone water. The graph which compared the measured value of pH of isotonic ozone water. A photomicrograph of osteoblast proliferation after 1 day. The graph which compared the number of osteoblasts after addition of isotonic ozone water and 4 days progress.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  As shown in FIG. 1, an isotonic ozone water production apparatus M according to this embodiment is an apparatus that produces isotonic ozone water by dissolving ozone in a solution. By dissolving ozone in isotonic saline, isotonic ozone water having an ozone concentration of about 3.0 ppm or more can be produced in an amount of about 180 to 230 mL per minute. The isotonic ozone water production apparatus M includes a solution transfer unit 1, an ozone gas generation unit 2, a gas / liquid mixing unit 3, a gas / liquid separation unit 4, a waste gas treatment unit 5, and an isotonic ozone water discharge unit 6. It is configured with. Hereinafter, the structure and function of each part will be described in detail. In the figure, solid arrows indicate the flow of liquid, and dotted arrows indicate the flow of gas.

(Solution transfer section)
The solution transfer unit 1 has a function of continuously and quantitatively transferring a solution (0.9% saline) that is a raw material of isotonic ozone water, and includes a water supply cap 12, a water supply adapter 13, and a pump 14. Has been.

  In this embodiment, the solution is obtained by dissolving 18 g of sodium chloride in mineral water contained in a 2 L plastic bottle container 11 to obtain a 0.9% concentration saline solution. Here, mineral water can be used regardless of whether it is hard water or soft water, but preferably soft water, ideally neutral water. The salt must be neutral. Some sodium chlorides show alkalinity, but use of a saline solution in which the salt is dissolved is not preferable because the mixed ozone is decomposed. Note that the mineral water is not limited to 2 L, and may have other volumes. For example, 9 g of salt is dissolved in 1 L and 4.5 g of salt is dissolved in 500 mL so that the concentration of the saline is 0.9%. Things can also be used.

  The solution comprising 0.9% saline is set in the apparatus by replacing the cap of the plastic bottle container 11 with a dedicated water supply cap 12. As shown in FIG. 2, the water supply cap 12 is provided with a valve 12c urged by a spring 12b at an opening 12a of the cap body. The water supply cap 12 is attached to the mouth of the plastic bottle container 11, the container is turned upside down, and the water supply cap 12 is inserted into the recess 13 a of the water supply adapter 13. Thereby, the valve 12c pushed by the protrusion 13b is lifted against the spring force of the spring 12b, and the valve 12c is opened so that the solution in the container 11 flows out from the water supply hole 13c by a certain amount.

  The solution flowing out from the water supply hole 13c is supplied to the pump 14 through the tube. The pump 14 of the present embodiment is a tube pump that transfers liquid using the elastic force of a rubber tube. When the pump 14 is activated, the roller 14a rotated by the geared motor revolves while crushing the tube 14b. Then, when the crushed tube 14b is restored by elastic force, the solution is sucked from the tube 14b, and the solution in the tube 14b is continuously sent out by a certain amount as the roller 14a rotates. . Although the transfer flow rate can be adjusted by changing the size of the tube 14b and the number of rotations of the geared motor, in this embodiment, the solution in which the transfer flow rate is set to 180 to 230 mL per minute is the gas-liquid mixing unit 3. The amount is continuously transferred.

[Ozone gas generator]
The ozone gas generator 2 has a function of generating a mixed gas of ozone and oxygen (hereinafter referred to as “ozone gas”), and includes an oxygen cylinder 21, a speed control valve 22, a pressure sensor 23, an ozone generator 24, The check valve 25 is configured.

  In this embodiment, the oxygen cylinder 21 uses a portable small cylinder (oxygen capacity 18L), and a speed control valve (speed controller) 22 is attached to the discharge port of the cylinder. As shown in the figure, the speed control valve 22 has a structure in which a throttle valve 22a and a check valve 22b are combined in parallel. Therefore, the flow rate of the raw material gas discharged from the oxygen cylinder 21 is adjusted by the throttle valve 22a, the check valve 22b is opened by the fluid pressure, the flow rate is controlled in the compressed state, and supplied to the ozone generator 24.

The ozone generator 24 is an ozonizer that generates ozone gas using silent discharge, and an intake port of the ozone generator 24 is connected to the oxygen cylinder 21 via the speed control valve 22. According to the ozone generator 24, electrodes covered with a dielectric material such as glass or ceramic are disposed facing each other, and an AC voltage is applied to the electrode to discharge the source gas supplied from the oxygen cylinder 21. Ozone is generated. The generation principle is that oxygen molecules [O ₂ ] are decomposed into oxygen atoms [O] by electron collision, and the decomposed oxygen atoms [O] and oxygen molecules [O ₂ ] are combined to form ozone [O ₃ ]. It occurs. In addition, although the ozone generator 24 of this embodiment used the silent discharge thing, it may replace with this and may use the thing by a diamond electrode or an ultraviolet lamp.

  The supply amount of the source gas supplied from the oxygen cylinder 21 is adjusted by the speed control valve 22 and the pressure sensor 23. In this embodiment, the flow rate is set to 0.25 mL / min, and the oxygen pressure is set to 0.04 MPa. A tube for exhausting ozone gas is connected to the exhaust port of the ozone generator 24. A check valve 25 is attached to the tip of the tube, and the generated ozone gas is supplied to the gas-liquid mixing unit 3 through the check valve 25 so that the ozone gas does not flow back to the ozone generator 24.

[Gas-liquid mixing part]
The gas-liquid mixing unit 3 generates mixed water (hereinafter referred to as “gas-liquid mixed water”) in which the 0.9% saline solution transferred from the solution transfer unit 1 is mixed with the ozone gas generated by the ozone gas generation unit 2. It has a function and is composed of a static mixer 31.

  The static mixer 31 is a static mixer (line mixer) without a drive unit, and stirs and mixes the fluid that has entered the pipe. The static mixer 31 is provided with two suction ports, one of which is connected to a tube for solution transfer from the pump 14 and the other is connected to a tube for exhausting ozone gas from the ozone generator 24. Yes. Since the flow path of the suction port of the mixer is narrowed inside, the flow rate of the solution transferred from the pump 14 increases at the suction port, and ozone gas is sucked from the suction port through the tube by the water flow of the accelerated solution. As a result, 0.9% saline and ozone gas merge in the pipe of the static mixer 31.

  Also, in the pipe of the static mixer 31, a right element 31a in which a rectangular plate is twisted by 180 ° and a left element 31b in which the rectangular plate is twisted in the opposite direction are provided, and both elements 31a and 31b are alternately continuous. Are arranged. For this reason, the solution and ozone gas flowing into the pipe are repeatedly divided, changed in direction and inverted along the torsion surfaces of the elements 31a, 31b,. Thereby, the solution and the ozone gas are mixed efficiently, and high-concentration gas-liquid mixed water in which the ozone gas is dissolved in the solution is generated. Thus, the gas-liquid mixed water generated through the static mixer 31 is supplied to the gas-liquid separator 4.

[Gas-liquid separation unit]
The gas-liquid separation unit 4 converts the gas-liquid mixed water generated in the gas-liquid mixing unit 3 into a mixed gas of oxygen and residual ozone (hereinafter referred to as “waste gas”) that does not dissolve in the solution and 0.9% saline. It has a function of separating into a mixed solution in which ozone is dissolved (hereinafter referred to as “isotonic ozone water”), and includes a gas-liquid separation pipe 41, a connecting pipe 42, and a drainage tube 43.

  The gas-liquid separation tube 41 is installed in a state where a cylindrical hollow container is erected. A water supply port is opened on the top surface, and an elongated connecting tube 42 is fitted and fixed to the water supply port. Further, a drain tube 43 made of silicone rubber is attached to the discharge port of the static mixer 31, and the static mixer 31 with this tube is accommodated in the pipe of the connecting pipe 42. Here, the reason why the drainage tube 43 is attached to the discharge port of the static mixer 31 is that if the discharge port of the static mixer 31 is exposed, the gas-liquid mixed water turbulently stirred in the mixer is discharged vigorously. This is because a vortex flow is generated inside the gas-liquid separation tube 41, and the vortex flow is suppressed by passing the drain tube 43.

  The gas-liquid mixed water flowing out from the drainage tube 43 is separated into waste gas and isotonic ozone water in the gas-liquid separation tube 41. Then, the waste gas passes through the gap between the gas-liquid separation pipe 41 and the connecting pipe 42 and is exhausted to the waste gas processing unit 5. On the other hand, the isotonic ozone water flows down from the drainage tube 43 and is discharged from the isotonic ozone water discharge unit 6 to the outside of the apparatus.

[Waste gas treatment department]
The waste gas processing unit 5 has a function of decomposing residual ozone contained in the waste gas separated by the gas-liquid separation unit 4 into oxygen, and includes an ozone decomposition catalyst unit 51.

In this embodiment, the ozone decomposition catalyst unit 51 decomposes ozone using a catalyst, and is attached integrally to the upper portion of the gas-liquid separation tube 41. In the container of the ozonolysis catalyst 51, a porous filter 52 having a honeycomb structure made of an oxide such as manganese oxide or zirconia oxide is accommodated as a catalyst having ozone decomposability. Thus, when the waste gas exhausted from the gas-liquid separation pipe 41 enters the ozone decomposition catalyst 51, the residual ozone in the waste gas is adsorbed and reacted by the porous filter 52 of the catalyst, and ozone [O ₃ ] is reacted. It is decomposed into oxygen molecules [O ₂ ] and the odor peculiar to ozone is removed. In addition, since this ozonolysis device 51 utilizes a catalyst, it does not need to be replaced and can realize maintenance-free.

[Isotonic ozone water discharge section]
The isotonic ozone water discharge unit 6 has a function of discharging the isotonic ozone water separated by the gas-liquid separation unit 4 to the outside of the apparatus, and a discharge port 61 provided at the bottom of the gas-liquid separation pipe 41. It is comprised by.

  A cap-type block 62 as shown in FIG. 3 is fitted and fixed to the bottom of the gas-liquid separation tube 41. The inner bottom surface of the block 62 is provided with an inclined surface 62a that is chamfered in a curved shape (R = 115 °) toward the center, and the center has an inner diameter for taking out isotonic ozone water. A discharge hole 62 b of about 5 mm is formed and communicates with the discharge port 61. Further, the height position of the static mixer 31 and the length of the drainage tube 43 are set so that the tip of the drainage tube 43 is disposed at a position where the height H from the inner bottom surface of the block 62 is about 5 to 20 mm. Has been.

  With such a structure, the isotonic ozone water mixed and generated by the static mixer 31 is not directly discharged from the discharge port 61 but flows out in a state of being dropped from the drain tube 43. The flowing isotonic ozone water once hits the block 62 and then gently flows down along the inclined surface 62a. For this reason, bubbles are not generated in isotonic ozone water.

  When collecting the isotonic ozone water produced as described above, a thermos 63 having a lid opened in advance under the outlet 61 may be installed. Thereby, the isotonic ozone water dripped from the discharge port 61 is gradually accumulated in the thermos 63, and after 1 minute, an isotonic ozone water having an ozone concentration of about 3.0 ppm or more and a capacity of 180 to 230 mL is collected. After the collection, if the lid of the thermos 63 is closed, a high ozone concentration of about 2.0 ppm can be maintained even after 2 hours.

  In addition, the isotonic ozone water production apparatus M of the present invention includes a rechargeable battery (DC12V) (not shown), and uses all the components that are driven at 12V. For this reason, the device of the present invention can be driven by a battery and can be used as a portable device.

  The above is the structure of the isotonic ozone water production apparatus of the present invention, and the operation and effect thereof will be described below based on experimental data.

(1) Measurement of ozone concentration of isotonic ozone water The following three types of solutions were prepared.
・ 0.9% saline solution ・ 0.9% saline solution: 18 g of salt (salt business center “salt”) 18 g of mineral water (Suntory Natural Water Minami-Alps) 2 L is eliminated Salt solution dissolved by shaking well until 0.9% table salt water: 18g of table salt (tablet salt) is added to 2L of mineral water (same as above), and the container is well shaken until cloudiness disappears. Table salt aqueous solution made The above-mentioned three kinds of solutions were used to produce isotonic ozone water using the apparatus of the present invention, and 180 mL of isotonic ozone water was collected. The ozone concentration of these isotonic ozone waters was measured using an ozone water concentration meter (Hiranuma Sangyo Co., Ltd. “Ozone Counter ZC-15A”), and changes in ozone concentration over time were examined. The measurement results are shown in FIG.

(2) Measurement of pH of isotonic ozone water About the isotonic ozone water produced by the above method, the pH of each isotonic ozone water is measured with an ion concentration meter (Toa Denpa Kogyo "Ion Meter IM-40S") and pH. Measurement was performed using both meter pH type 56 (MARTINI). The measurement results are shown in FIG.

(3) Cell test Toxicity test was performed using osteoblasts and fibroblasts. One day after the addition of isotonic ozone water produced by the apparatus of the present invention (ozone concentration: 0.25 ppm, 1.0 ppm, 2.0 ppm) and no isotonic ozone water (ozone concentration: 0 ppm) The state of proliferation of osteoblasts after the past was observed. The result is shown in FIG. Also, isotonic ozone water (ozone concentration: 4.0 ppm) added to the culture solution (ozone concentration: 0.5 ppm, 1.0 ppm, 2.0 ppm) and no isotonic ozone water added (ozone concentration: 0 ppm) ), The number of osteoblasts after 4 days was counted. The result is shown in FIG.

(4) Discussion In the measurement result of the ozone concentration of isotonic ozone water generated with 0.9% saline, the ozone concentration was 3.18 ± 0.12 ppm. Isotonic ozone water was reduced to 2.50 ppm, 2.26 ppm and 1.98 ppm after 60 minutes, 120 minutes and 240 minutes after production, respectively. Compared to the fact that the ozone concentration becomes almost zero after the elapse of time, it has been found that a high ozone concentration can be maintained even if the change with time is seen. This indicates that when the apparatus of the present invention is used, ozone is dissolved in a state of microbubbles in a solution composed of 0.9% saline, so that the concentration is difficult to decrease.

  In the pH measurement result of the isotonic ozone water, 18 g of sodium chloride was added to 2 L of mineral water, and the pH of the solution completely dissolved was 6.8 ± 0.1, whereas it was isotonic. The pH of the ozone water was 7.3 ± 0.2, indicating weak alkalinity. This indicates that the isotonic ozone water is not hypochlorous acid.

  In the cell test results, it was observed that osteoblasts proliferated in all cases when isotonic ozone water was added. In particular, when comparing the number of osteoblasts after 4 days, the number of osteoblasts with an ozone concentration of 2.0 ppm is 1.5 times greater than that with no isotonic ozone water added. Proliferation could be confirmed.

Results of clinical results Ozone water acts on the affected surface because osmotic pressure is different from that of body fluid, but isotonic ozone water penetrates into the body from the affected area because osmotic pressure is equal to the body fluid. As a result, it can be inferred that many cases showed good results.

M ... Isotonic ozone water production apparatus 1 ... Solution transfer part 11 ... Container 12 ... Water supply cap 12a ... Opening part 12b ... Spring 12c ... Valve 13 ... Water supply adapter 13a ... Recess 13b ... Projection 13c ... Water supply hole 14 ... Pump 14a ... Roller DESCRIPTION OF SYMBOLS 14b ... Tube 2 ... Ozone gas generation part 21 ... Oxygen cylinder 22 ... Speed control valve 22a ... Throttle valve 22b ... Check valve 23 ... Pressure sensor 24 ... Ozone generator 25 ... Check valve 3 ... Gas-liquid mixing part 31 ... Static mixer 31a ... right element 31b ... left element 4 ... gas-liquid separation part 41 ... gas-liquid separation pipe 42 ... connecting pipe 43 ... drainage tube 5 ... waste gas treatment part 51 ... ozone decomposition catalyst 52 ... porous filter 6 ... isotonic Ozone water discharge unit 61 ... discharge port 62 ... block 62a ... inclined surface 62b ... discharge hole 63 ... thermos

Claims (3)

An apparatus for producing isotonic ozone water in which ozone is dissolved in a solution,
A solution transfer unit that continuously transfers a solution consisting of 0.9% saline in which salt is dissolved in water;
An ozone gas generator that generates oxygen gas with an ozone generator by supplying oxygen gas whose speed is controlled from a portable oxygen cylinder;
A gas-liquid mixing unit that mixes the solution quantitatively transferred from the solution transfer unit and the ozone gas generated by the ozone gas generation unit with a static mixer to generate gas-liquid mixed water;
A gas-liquid separation unit that separates the gas-liquid mixed water generated in the gas-liquid mixing unit into waste gas that does not dissolve in the solution and isotonic ozone water in which ozone is dissolved in the solution;
A waste gas treatment unit that decomposes residual ozone contained in the waste gas separated in the gas-liquid separation unit into oxygen by a catalyst;
An isotonic ozone water discharge unit for discharging the isotonic ozone water separated by the gas-liquid separation unit to the outside of the device;
A device for producing isotonic ozone water, comprising:   The gas-liquid separation part consists of a cylindrical gas-liquid separation tube, and a connecting pipe is fitted and fixed to the water supply port of the gas-liquid separation pipe, and a tube with a drain tube attached to the discharge port is attached inside this connecting pipe The isotonic ozone water production apparatus according to claim 1, wherein a static mixer is housed.   A cap-type block is fitted and fixed to the bottom of the gas-liquid separation tube, and an inclined surface that is chamfered into a curved shape toward the central discharge hole is provided on the inner bottom surface of the block. The isotonic ozone water production apparatus according to claim 2.