WO2004058637A1 - オゾン発生装置 - Google Patents
オゾン発生装置 Download PDFInfo
- Publication number
- WO2004058637A1 WO2004058637A1 PCT/JP2003/016637 JP0316637W WO2004058637A1 WO 2004058637 A1 WO2004058637 A1 WO 2004058637A1 JP 0316637 W JP0316637 W JP 0316637W WO 2004058637 A1 WO2004058637 A1 WO 2004058637A1
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- WIPO (PCT)
- Prior art keywords
- electrodes
- discharge tubes
- gas
- voltage
- ozone generator
- Prior art date
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 239000012212 insulator Substances 0.000 claims abstract description 13
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 24
- 238000004070 electrodeposition Methods 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 49
- 230000007423 decrease Effects 0.000 description 25
- 238000010586 diagram Methods 0.000 description 21
- 238000004804 winding Methods 0.000 description 17
- 230000010355 oscillation Effects 0.000 description 10
- 230000001186 cumulative effect Effects 0.000 description 7
- 230000020169 heat generation Effects 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000013049 sediment Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
- C01B13/11—Preparation of ozone by electric discharge
- C01B13/115—Preparation of ozone by electric discharge characterised by the electrical circuits producing the electrical discharge
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
- C01B13/11—Preparation of ozone by electric discharge
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/10—Dischargers used for production of ozone
- C01B2201/14—Concentric/tubular dischargers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/30—Dielectrics used in the electrical dischargers
- C01B2201/34—Composition of the dielectrics
Definitions
- the present invention relates to an ozone generator using gas plasma discharge, and more particularly to an ozone generator used for consumer deodorization, sterilization, mold prevention, decomposition of oily components, production of alkaline ionized water, and the like.
- ozone generators there are various types of ozone generators.
- electrodes 3 and 4 are provided only at one end of glass tubes 1 and 2 in which both ends are sealed and gas is filled.
- the two single-electrode gas-filled glass discharge tubes 5 and 6 are arranged approximately parallel to each other with the above-mentioned electrode positions opposite to each other, and a high-frequency voltage is applied to the two electrodes 3 and 4.
- a device that generates ozone for example, see Japanese Patent No. 264493.
- reference numerals 11 and 2 denote binding bands for arranging two discharge tubes 5 and 6 side by side.
- FIG. 2 shows the change in the amount of ozone generated with respect to the cumulative high-frequency application time.
- the ambient environment temperature and humidity
- the ambient environment is 25 ° C / 60% (hereinafter abbreviated as A environment)
- the ambient environment is 25 ° C / 90% with respect to the ozone generation amount A.
- B environment the ozone generation B at the time (hereinafter abbreviated as B environment) is greatly reduced in the range exceeding 150 hours.
- the deposit 7 in FIG. 2 has a higher density of deposits in the B environment than in the A environment, which affects the application of an electric field to the opposing discharge tube.
- the impedance seen from the load side of the step-up transformer 11 is also It was found that it decreased in proportion to the amount of sediment 7 generated. That is, when the load impedance of the oscillating circuit 10 decreases, the voltage applied from the secondary winding 12 applied via the step-up transformer 11 also decreases, resulting in a decrease in the amount of ozone generated.
- the deposition state of the deposit 7 varies depending on the shape of the discharge tube, the gap between the discharge tubes facing each other, the applied high-frequency voltage, the output impedance of the oscillation circuit, and the like.
- the branch point P where the amount of ozone decreases causes a serious problem in the electric circuit.
- the impedance viewed from both ends of the electrode lead-out portions 8 and 9 decreases in proportion to the amount of the deposit 7 until the cumulative application time reaches 150 hours, and the ozone generation amount decreases.
- the cumulative application time reaches 1500 hours dielectric breakdown of the deposit 7 occurs, and the deposit 7 is carbonized by the intermittent application of corona discharge, causing a rapid drop in impedance and secondary
- the oscillation circuit 10 becomes overloaded at the same time as the voltage of the winding 12 decreases. As a result, there is a risk that heat generation of electronic components such as transistors in the oscillation circuit 10 described later is accelerated, and a thermal runaway state occurs.
- Figure 4 shows the change in the amount of ozone generated with respect to the cumulative high frequency application time when the applied high frequency voltage is 10.0 KV and 8.0 KV. Therefore, it is desirable to operate with the lowest high frequency applied voltage for the required ozone amount.
- a circuit for generating an applied high-frequency voltage uses a self-excited impeller circuit as shown in FIG. 5 and is uniquely determined by the winding ratio of the step-up transformer T. It was difficult to adjust to the optimal point correspondingly.
- the present invention has been made in view of the above, and a first object of the present invention is to provide a discharge tube mounting structure which does not cause a decrease in the impedance of a discharge tube in an electric circuit even when deposits are deposited. It is intended to provide an ozone generator that is extremely easy to assemble and takes into account mass production efficiency.Furthermore, by changing the kickback voltage in the inverter circuit, the optimum high frequency applied voltage for the required ozone amount is provided. It also provides an inverter circuit for providing the following.
- a second object of the present invention is to set the most efficient gas pressure with respect to the required ozone amount by focusing on the relationship between the gas pressure sealed inside the discharge tube and the ozone generation amount. Further, the present invention proposes a combination with an electric circuit that drives a highly efficient discharge tube suitable for the above-mentioned ozone generation in an optimal state. Disclosure of the invention
- the first invention of the present application is to provide a lead-out portion of two electrodes of a single-pole gas-filled discharge tube in which electrodes are provided only at one end of a glass tube filled with gas.
- An ozone generator characterized in that the tubes are arranged side by side in such a manner that the electrode positions are opposite to each other and substantially parallel to each other, and a high-frequency voltage is applied to the two discharge tubes.
- the second invention of the present application is directed to two single electrodes in which hollow boxes made of an insulator are erected at left and right ends of an insulating plate, and electrodes are provided only at one end of a glass tube filled with gas.
- the gas-filled discharge tubes are arranged side by side in such a manner that the positions of the electrodes are opposite to each other and substantially parallel to each other, and each end provided with the electrodes is provided with a groove provided on the wall of the hollow box.
- it is housed in the hollow box through a hole, the other end of the non-electrode side is located outside the hollow box, and a high-frequency voltage is applied to the two discharge tubes.
- the ozone generation device is designed to have a good insulation between the two discharge tubes by locating the ends of the discharge tubes inside and outside the hollow box made of an insulator. Even if it is generated, the electric circuit does not cause a decrease in the impedance of the discharge tube. Stable supply of emission generation is possible.
- the third invention of the present application is directed to a two-pole single electrode in which hollow boxes made of an insulator are erected at the left and right ends of an insulating plate, and electrodes are provided only at one end of a glass tube filled with gas.
- the gas-filled discharge tubes are arranged side by side in such a manner that the positions of the electrodes are opposite to each other and substantially parallel to each other, and each end provided with the electrodes is provided with a groove provided on the wall of the hollow box. Or, it is housed in the hollow box through a hole, the other end of the non-electrode side is located outside the hollow box, and the hollow box is filled with an insulating material, and the two discharge tubes are filled.
- An ozone generator characterized in that a high-frequency voltage is applied to the electrode, and a simple and reliable means for surrounding the electrode lead-out portion of the discharge tube with an insulator can be provided.
- the fourth invention of the present application is that an electrode is provided only at one end of a glass tube filled with gas.
- Each of the two single-pole type gas-filled discharge tubes provided with the above is provided with a through hole having a diameter substantially the same as the outer diameter of the discharge tube on one side and a lead-out portion on the other side of the electrode.
- the two discharge tubes While covering with a bushing having a through-hole of the same diameter, the two discharge tubes are juxtaposed in parallel with the electrode positions opposite to each other and almost parallel to each other.
- An ozone generator characterized by applying a high-frequency voltage. With such a configuration, the impedance of the discharge tube is reduced in terms of an electric circuit even if deposits are generated as in the past. Therefore, it is possible to provide a simple structure capable of providing a stable supply of ozone generation without causing a problem.
- the fifth invention of the present application is an ozone generator characterized in that a kickback voltage of an inverter circuit for generating a high-frequency voltage is made variable.
- a high-efficiency ozone generator is provided that enables the supply of an optimal high-frequency applied voltage for the required amount of ozone and minimizes sediment generation. can do.
- the sixth to sixteenth inventions of the present application are configurations for achieving the second object of the present invention.
- the sixth invention of the present application is directed to a draw-out portion of the above-mentioned electrodes of two monopolar gas-filled discharge tubes in which an electrode is provided only at one end of a glass tube in which gas is sealed at a pressure of 400 Torr or less.
- an electrode is provided only at one end of a glass tube in which gas is sealed at a pressure of 400 Torr or less.
- the two discharge tubes are arranged side by side with the electrode positions opposite to each other and substantially parallel to each other, and a high-frequency voltage is applied to the two discharge tubes.
- This is an ozone generator characterized by having the following features, and can provide a device with high ozone generation efficiency.
- the seventh invention of the present application is directed to a two-pole type gas-filled discharge tube in which an electrode is provided only at one end of a glass tube in which gas is sealed at a pressure of 400 Torr or less.
- Each of the two sides is approximately the same as the outer diameter of the discharge tube.
- the two discharge tubes are covered with a pusher having a through hole having one diameter and a through hole having the same diameter as the lead portion of the electrode on the other side, and the electrode positions of the two discharge tubes are opposite to each other and substantially parallel to each other.
- An ozone generation device characterized by being arranged in close proximity and applying a high-frequency voltage to the two discharge tubes. With this configuration, an extremely practical structure is achieved.
- a hollow box made of an insulator is erected at the left and right ends of an insulating plate, and gas is sealed at only one end of a glass tube filled with a pressure of 400 Torr or less.
- Two single-pole gas-filled discharge tubes provided with electrodes are arranged side by side in such a manner that the electrode positions are opposite to each other and nearly parallel and close to each other, and each end provided with the electrodes is hollowed out.
- the two discharge tubes are housed in the hollow box through grooves or holes provided in the wall of the box, and the other end on the non-electrode side is located outside the hollow box.
- This is an ozone generator characterized by applying a high-frequency voltage to the ozone, whereby it is possible to provide a device having a practical structure and high ozone generation efficiency.
- the ninth invention of the present application is to select tungsten or nickel as a material of the electrode or a sintered electrode as the electrode, thereby achieving the effects of the sixth to eighth inventions.
- the life of the device can be prolonged by reducing the electrode sputtering.
- the tenth invention of the present application is directed to disposing three or more discharge tubes in which electrodes are provided only at one end of a glass tube filled with a gas in such a manner that the positions of the electrodes of the respective discharge tubes are sequentially reversed. So that the electrodes of each of the above-mentioned discharge tubes are on the same side, and the electrodes of each of the discharge tubes are electrically connected to each other so as to form two terminals.
- this is an ozone generator characterized by applying a high-frequency voltage between the two terminals.
- the eleventh invention of the present application is directed to a two-pole type gas-filled discharge tube in which electrodes are provided only at one end of a glass tube filled with gas, and the above-mentioned electrode positions are opposite to each other and A single discharge tube block is formed by juxtaposition in a substantially parallel vicinity, and two or more discharge tube blocks are electrically connected in parallel, and a high frequency is applied to the discharge tube block connected in parallel.
- An ozone generator characterized by applying a voltage. With such a configuration, an extremely practical device capable of coping with various ozone amounts can be provided.
- the 12th invention of the present application is that the gas filling pressure in the ozone generator of the 10th or 11th invention is set to 400 Torr or less, whereby the 10th or It is possible to obtain a device with higher efficiency than the device according to the eleventh invention.
- the inventions of the thirteenth, the fifteenth and the fifteenth aspects of the present invention each provide means for varying a power supply voltage in an inverter circuit for generating a high-frequency voltage, and means for variably controlling a duty ratio in the inverter circuit. And a means for variably controlling the bias level of the output stage transistor of the inverter circuit, and in each case, the amount of generated ozone can be effectively controlled.
- the sixteenth invention of the present application is a device for generating a high-frequency voltage, comprising the steps of: It feeds back to the constant voltage circuit, duty circuit, or variable bias level circuit of the inverter circuit, thereby effectively controlling the amount of ozone generated.
- FIG. 1 is a diagram for explaining a main part of a conventional ozone generator.
- FIG. 2 is a diagram for explaining a problem of the conventional ozone generator,
- FIG. 3 is a diagram showing an example of characteristics of the conventional ozone generator, and
- FIG. 5 is a diagram showing an example of characteristics, and
- FIG. 5 is a diagram of a high-frequency voltage generation circuit used in a conventional ozone generator.
- FIG. 6 is a perspective view showing a main part of the ozone generator according to one embodiment of the present invention.
- FIG. 7 is a partially cutaway perspective view of a main part of the ozone generator according to one embodiment of the present invention.
- FIG. 8 is a perspective view of a main part of an ozone generator according to another embodiment of the present invention.
- FIG. 9 is a diagram of a high-frequency voltage generation circuit used in one embodiment of the present invention
- FIG. 10 is a diagram showing characteristics of the high-frequency voltage generation circuit of the ozone generator.
- Fig. 11 shows the characteristics of the high-frequency voltage generation circuit of the ozone generator.
- FIG. 12 is a diagram for explaining a main part of the ozone generator according to one embodiment of the present invention.
- FIG. 13 is a diagram for explaining a main part of the ozone generator according to one embodiment of the present invention.
- FIG. 14 is a diagram for explaining a gas-filled discharge tube used in one embodiment of the present invention.
- FIG. 15 is a diagram showing a waveform of a high-frequency voltage used in one embodiment of the present invention.
- Fig. 16 shows the relationship between the amount of ozone generated by the ozone generator and the gas pressure.
- FIG. 17 is a perspective view of a main part of a gas-filled discharge tube in one embodiment of the present invention. Yes,
- Fig. 18 is a diagram showing the relationship between the duty of the high frequency applied voltage and the amount of ozone generated in the ozone generator.
- FIG. 19 is a diagram showing an example of connection of a gas-filled discharge tube in one embodiment of the present invention.
- FIG. 20 is a diagram showing another example of the connection of the gas-filled discharge tube in one embodiment of the present invention.
- FIG. 21 is a high-frequency voltage generation circuit diagram used in one embodiment of the present invention
- FIG. 22 is a diagram showing a voltage waveform in the high-frequency voltage generation circuit of one embodiment of the present invention.
- FIG. 23 is a diagram showing a voltage waveform of one embodiment of the present invention.
- FIG. 24 shows the characteristics of the high-frequency voltage generation circuit.
- FIG. 25 is a high-frequency voltage generation circuit diagram used in one embodiment of the present invention
- FIG. 26 is a high-frequency voltage generation circuit diagram used in one embodiment of the present invention
- FIG. FIG. 3 is a high-frequency voltage generation circuit diagram used in one embodiment of the present invention.
- FIG. 6 is a perspective view of one embodiment of the present invention.
- 21 is an insulating plate made of a material such as vinyl chloride, fluorine resin, ACS (trade name) that is not affected by ozone, and has hollow boxes 22 and 23 at the left and right ends. are doing.
- Reference numerals 24 and 25 denote two single-pole gas-filled discharge tubes in which electrodes 26 and 27 are provided only at one end of a glass tube containing gas, and the electrodes 26 and 27 are provided.
- Each of the end portions, that is, the electrode lead portions 26, 27 ′ are connected to the hollow box portion 2 through grooves or holes 30, 31 provided in the walls 28, 29 of the hollow box portion.
- the other non-electrode-side end portions 32, 33 are arranged in 2, 23 so as to be located outside the hollow box portions 22, 23, respectively. Thereafter, the hollow box portions 22 and 23 are filled with an insulating material such as silicon resin while removing air bubbles, so that the electrode lead portions 26 and 27 have a complete insulating structure.
- an insulating material such as silicon resin
- the first embodiment relating to the first object of the present invention provides an ozone generator having such a configuration. Even if the above-described deposit is deposited on the discharge tubes 24 and 25, the electrode is drawn out. Since the parts 26 'and 27' are completely electrically insulated by the silicon resin etc. in the hollow box parts 22 and 23 and the box body walls 28 and 29, the electricity of the sediment is Ozone attenuation due to natural factors was completely eliminated. In addition, the above-described configuration also eliminates the influence of the decrease in impedance due to the carbonization of the deposit, and the present invention is an effective means for preventing a fatal defect such as thermal runaway of a transistor.
- FIG. 7 shows details of the hollow box part 22, especially the wall part 28 thereof.
- the non-electrode-side end part 32 of the discharge tube 25 shown in FIG. The structure is supported by 38.
- the interval between the two discharge tubes 24 and 25 can be determined by the interval 1 between the groove 30 and the inside of the discharge tube receiving portion 38.
- the above embodiment is an example in which the hollow boxes 22 and 23 are filled with an insulating material such as silicon resin, it is not always necessary to fill the hollow box with the insulating material.
- the electrode box is housed in the hollow box, so the hollow box made of an insulator significantly increases the insulation between the electrode boxes and generates deposits. Even if this is the case, the impedance of the discharge tube is not reduced in an electric circuit.
- FIG. 8 shows a second embodiment relating to the first object of the present invention, in which the electrode lead-out portions 26, 2 'of the discharge tubes 24, 25 are molded from a material such as silicon which is resistant to ozone.
- One side is inserted into a bushing 39, 40, which has a through-hole with the same diameter as the outer diameter of the discharge tube on the other side, and has a through-hole with the same diameter as the electrode lead-out part.
- the discharge tubes 24, 25 are brought into close contact with the side walls 41, 42 of the pushing and bound by the binding bands 43, 44.
- the binding band is also made of silicon and other materials that are not affected by ozone.
- the gap between the discharge tubes 24 and 25 is determined by the thickness of the side walls 41 and 42 of the pushing. Since the deposit 7 described above is most frequently generated in the vicinity of the discharge tubes 24 and 25, if the discharge tubes 24 and 25 are in close contact, the accumulated high frequency application time is relatively early. Causes an electrical short circuit due to sediment. By providing a gap in the discharge tubes 24 and 25, it is possible to prevent an electric short circuit due to the deposit 7 from occurring as compared with the case where the discharge tubes 24 and 25 are in close contact. Therefore, although the gap between the discharge tubes 24 and 25 has never been increased, as shown in Table 1, if the gap is too large, the amount of ozone generated tends to decrease. Thus, the final deposition time of the deposit 7, that is, the increase of the gap width for extending the cumulative high frequency application time is determined by the balance with the amount of generated ozone.
- FIG. 9 shows a circuit embodiment according to the present invention, which is a self-excited inverter circuit of AC 100 V input as a power supply.
- AC 100 V is input from terminals 45 and 46, passed through noise filter circuit 47, and adjusted by full-wave rectifying bridge 49. Then, the DC voltage is charged in the smoothing capacitor 50.
- Such a DC voltage is configured to supply an applied high-frequency voltage to the discharge tube block C (for example, the ozone generation unit of the first embodiment) of the load via the inverter circuit.
- the bypass circuit 58 is composed of a high frequency diode 52, a resistor 53, and a variable resistor 54, and the kickback voltage generated in the base winding 57 during the oscillation suspension period is released by the variable resistor 54 in a timely manner. It is.
- Fig. 10 shows this situation in relation to the high-frequency voltage applied to the discharge tube block C and the kickback voltage of the primary winding 56.
- the applied high-frequency voltage is indicated by 59 in the figure, and the voltage between the collector and the emitter of the transistor 55 is indicated by Vc_e 60, 61, 62.
- the resistance value of the variable resistor 54 is low, the kickback voltage is bypassed much, so the shoulder voltage 60 'of Vc-e60 becomes low, and the applied high frequency voltage becomes 12.0. KV.
- the resistance value of the variable resistor 54 is high, the amount of bypass of the kickback voltage decreases, and the shoulder voltage 62 2 ′ of V c — e 62 increases, and the applied high-frequency voltage becomes 7.8 KV. It becomes something.
- 61 and 61 indicate Vc_e and shoulder voltage between them, and the applied high-frequency voltage is 10.2 KV.
- the applied high-frequency voltage can be varied by the resistance value of the variable resistor 54 inserted on the base side of the inverter circuit, the voltage required for the discharge tube block C, which is a load, can be reduced to the minimum necessary voltage.
- the output can be adjusted.
- a graph showing the relationship between the resistance value of the variable resistor 54 and the applied high-frequency voltage is as shown in FIG. 11, which has an almost linear proportional relationship.
- the illustrated circuit embodiment includes an inductor 63. The purpose of this circuit is to prevent oscillation from stopping even if the inverter circuit is overloaded due to carbonization of the deposits as described above.
- a display circuit 64 including a light emitting diode is a circuit for displaying the operation of the discharge tube block.
- FIG. 12 and FIG. 13 are diagrams for explaining main parts of each embodiment.
- two single-electrode gas-filled glass discharge tubes with electrodes 103 and 104 provided only at one end of glass tubes 101 and 102 with gas sealed at both ends 105, 106 are arranged side by side almost in parallel as shown in the figure, and each electrode lead-out part 107, 108 is pulled out through pushing 109, 110, and both electrodes are drawn out.
- This is a device that applies a high-frequency voltage to 103 and 104.
- 11 and 11 are binding bands for arranging the discharge tubes 105 and 106 side by side.
- reference numeral 181 denotes an insulating plate made of a material such as vinyl chloride, fluorine resin, and ACS (trade name) which are not affected by ozone.
- 184 and 185 are two single-pole gas-filled discharge tubes provided with electrodes 186 and 187 only at one end of the glass tube containing the gas. , 187 are provided at the respective ends, that is, the electrode lead-out portions 186, 187 'are formed in the grooves or holes provided in the walls 188, 189 of the hollow box portion.
- the other end of the non-electrode side 192 and 193 is inside the hollow box part 182 and 183 outside the hollow box part 182 and 183. It is arranged to be located at.
- Fig. 14 shows the dimensions of the discharge tube used in the examples.
- reference numeral 161 denotes a glass tube having a length of about 34. O mm, an outer diameter of about 2.6 mm, and an arc length of about 29.5 mm.
- Reference numeral 162 denotes an electrode
- reference numeral 163 denotes an external lead of the electrode, and the length including the external lead is approximately 35 Omm.
- two discharge tubes of FIG. 14 are used as the discharge tubes 105 and 106 of FIG. 12 and the internal gas pressure is 70 Tor.
- the ozone generation amount corresponding to each gas pressure was measured, and the results shown in Figure 16 were obtained. (Measured air volume 3 liter / min).
- the internal gas pressure of the discharge tubes 105 and 106 shown on the horizontal axis is 400 Torr It was found that the ozone amount shown on the vertical axis tended to be a constant value when exceeded.
- the type of gas be selected from rare gases such as argon, krypton, xenon, neon, and helium, and nitrogen.
- the internal gas pressure is low.However, from the viewpoint of the life of the discharge tube, the spatters of the electrodes 103, 104 etc. decrease the internal gas pressure. However, there was a problem that the service life was shortened.
- the second embodiment related to the second object of the present invention is to secure the life by combining the electrodes 103 and 104 with less spatter even when the internal gas pressure is low, Tungsten or nickel is used as the electrode material, or a sintered electrode is used as the electrode (a powder of nickel, tungsten, etc. is mixed with an oxide, compression-molded in a mold, and then sintered at a high temperature. Electrodes). In this case, a hollow electrode 16 2 ′ shown in FIG. 17 may be employed as the electrode structure.
- the high and low ozone amounts of the first and second embodiments related to the second purpose are sufficient for household and in-vehicle deodorization and sterilization equipment, the kitchen used for decomposing oily components In this application, a larger amount of ozone is required.
- Fig. 18 shows this state.
- the applied high-frequency voltage is 10 KV
- the above-mentioned duty is on the horizontal axis
- the ozone generation amount is on the vertical axis
- the standard measurement mode when the air amount is 3 liters Z, hereinafter referred to as standard measurement.
- the characteristic becomes as shown by the line 118, and the ozone generation amount tends to be saturated as the duty increases. This again indicates that the amount of ozone attenuated due to excessive heat generation in the discharge tubes 105 and 106.
- a fan was installed from the outside to suppress the heat generation of the discharge tubes 105 and 106 compared to the standard measurement.
- the amount of generation shows a tendency to increase linearly, proving that the saturation of the amount of ozone generated by the heat generation of the discharge tubes 105 and 106 is due to the heat generation.
- a third embodiment related to the second object of the present invention is designed to prevent a decrease in the amount of ozone generated due to such heat generation of the discharge tubes 105 and 106.
- FIG. 19 schematically shows the discharge tube blocks 1 19 and 120 connected in parallel in FIG.
- the object can be achieved by adding a discharge tube block and connecting a plurality of discharge tube blocks in parallel.
- the object can be achieved by adding a discharge tube block and connecting a plurality of discharge tube blocks in parallel.
- the object instead of simply connecting discharge tube blocks in parallel to increase the amount of ozone, use three discharge tubes 105, 105, and 106 as shown in Fig. 20. A similar effect can be obtained by creating a discharge tube block.
- the present invention relates to an apparatus for generating ozone by applying a high-frequency high voltage to a discharge tube, and relates to a method for generating ozone most efficiently with respect to input energy. Therefore, in carrying out the present invention, Since the required ozone amount varies depending on the equipment used, an optimal input setting device is required.
- the fourth embodiment has a circuit configuration assuming that it is mounted on a vehicle as shown in FIG. 21, and its operation will be described below.
- a constant voltage is supplied to the load circuit via a constant voltage circuit 123 composed of a three-terminal regulator 122.
- the three-terminal regulator 122 is composed of a typical 78/79 series (product name) and is adjusted to 12 V output by a variable resistor 125.
- the high-frequency oscillation circuit 126 to generate high-frequency voltage to the discharge tubes 105 and 106, and the high frequency created by the high-frequency oscillation circuit 126 intermittently with the appropriate duty
- the duty circuit 127 for driving, the FET 128 driven ONZOFF by the output from the high-frequency oscillation circuit 126 (of course, a bipolar transistor may be used), and the driving of the FET 128 Step-up transformer for boosting to a predetermined high voltage 1
- the timing chart in Fig. 22 is also used.
- the high-frequency oscillator circuit 126 consists of a typical timer IC 55 5 (trade name) 130 Oscillator circuit is composed of capacitor 1 3 1 and variable resistor 1
- the output waveform is shown by 134 in FIG. 22.
- Each constant is set to be 20 khz based on the above calculation formula.
- a repetitive waveform of the timer time based on the formula of XR 135 is output via the transistor 133 with a built-in bias resistor.
- the output waveform is shown as .138 in Figure 22.
- a waveform obtained by combining the output waveforms 134 and 138 is indicated by 141 and supplied to the gate circuit of the FET 128.
- the FET 128 When the signal indicated by the waveform 14 1 is input to the gate of the FET 128, the FET 128 has the predetermined voltage during the period indicated by the waveform 142. Due to the gradual resonance between the primary winding 144 of the transformer 125 connected to the drain side and the resonance capacitor 144 connected to the drain side, a high voltage is output to the high voltage side 144 of the output high voltage transformer 125. Is forced.
- the waveform is shown by 146 in Fig. 22. If the turns ratio of the transformer 129 is ⁇ , the resonance condition on the primary side, F ⁇ ⁇ ⁇ The bias voltage determined by the variable resistor 147 of 128 By setting a number of constants in a timely manner, a waveform 144 equivalent to that of FIG. 15 described above is created.
- the fourth embodiment performs such a basic operation, it can cope with various high and low ozone amounts depending on the embodiment.
- a typical example thereof is possible by controlling the duty ratio by the duty circuit 127 as described above.
- the voltage of the constant voltage circuit 123 is varied to change the supply voltage to the FET 128, and when the voltage is high, the high-voltage output increases and the high ozone amount decreases. However, when the voltage is low, the high-voltage output is low and the amount of ozone can be reduced. Furthermore, the high voltage output can be adjusted by varying the bias of F ⁇ ⁇ 128 with the variable resistor 147, and if necessary.
- each high-pressure output adjusting means is associated with the generation of the optimum amount of ozone.
- the present invention most efficiently generates an appropriate amount of ozone depending on the application.However, as the device is used for a long time, the amount of ozone decreases due to electrode sputtering as described above. Adhesion of impurities to the discharge tube block, especially the decrease in ozone due to deposits on the gap between the two discharge tubes, and contamination of the board and electrical wiring during high-voltage electrical circuit mounting There was a situation in which a decrease in the amount of ozone over the life was unavoidable due to a drop in high voltage due to the adhesion of water.
- the fifth embodiment relating to the second object of the present invention has been made to solve such a problem.
- the greatest cause of the decrease in the amount of ozone due to the long-term use is that the high voltage applied to the discharge tube block decreases due to the above phenomenon.
- the fifth embodiment relates to a means for detecting a decrease in the high voltage and constantly generating a constant amount of ozone by combination with an electric circuit for increasing the amount of generated ozone.
- FIG. 23 shows an actual operating voltage waveform of the high voltage 148 and the drain-source voltage 149 of the FET 128 in the fourth embodiment related to the second object of the present invention.
- the p_p voltage between the drain and the source of the FET 128 (hereinafter referred to as the DS voltage) ) Is held at a predetermined level voltage by a general peak voltage hold circuit 150. Apply this voltage to the constant voltage circuit 1 2 3
- the circuit has a function similar to that of the voltage variable resistor 125 described in the fourth embodiment to compensate for the drop in the high voltage. Therefore, when the high voltage 148 decreases due to the above-mentioned phenomenon and the amount of ozone is about to decrease, the output voltage becomes higher than the constant voltage circuit 123 and finally the voltage lower than the high voltage 148 is obtained. This is an operation that compensates for, and a constant ozone amount can always be maintained.
- FIG. 26 shows a case where a predetermined level voltage from the peak hold circuit 150 is applied to the duty circuit 127, and the same function as the variable resistor 135 described in the fourth embodiment is peak-held.
- the circuit 150 is provided with weight by the voltage from the circuit 150, and the decrease in ozone amount due to the above-mentioned phenomenon is compensated for by increasing the duty ratio.
- FIG. 27 shows the sixth embodiment as an embodiment in which AC100 V is input.
- a step-up transformer generated on the base side of the transistor 157, a primary winding 158, a circuit for bypassing the voltage of the base winding 160, which is proportional to the kickback voltage of the primary winding 159, 1 6 1 is provided.
- the bypass circuit 16 1 is composed of a high-frequency diode 16 2, a resistor 16 3, and a variable resistor 16 4, and the kick-back voltage generated during the oscillation pause in the base winding 16 0 is properly controlled by the variable resistor 16 4 To release is there.
- the kickback voltage is emitted more, and the applied high-frequency voltage, which is proportional to the voltage of the base winding 160, is reduced, and the variable resistor 16
- the resistance value of 4 is large, the release of the kickback voltage is reduced, and the applied high-frequency voltage proportional to the voltage of the base winding 160 is increased.
- the above-described peak voltage hold circuit 150 is provided in the inverter circuit 156 that operates as described above, and the variable resistor in the bypass circuit 161 is provided by the voltage from the peak voltage hold circuit 150.
- the applied high-frequency voltage was kept constant.
- a conventional problem arises in an ozone generator of a type in which two monopolar gas-filled discharge tubes are juxtaposed and in which a high-frequency voltage is applied between the electrodes.
- a kickback voltage variable circuit of the high-frequency voltage application circuit can be employed, it is suitable for easily adjusting an output high-frequency voltage to an optimal voltage by changing the high-frequency voltage.
- the internal gas pressure of the discharge tubes is optimized, and the combination with the optimal electrode is used. Therefore, it is suitable for providing an ozone generator having a high efficiency and a long service life. It is also suitable for preventing heat generation by using multiple discharge tubes and generating an appropriate amount of ozone by combining electric circuits.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002376797A JP4061373B2 (ja) | 2002-12-26 | 2002-12-26 | オゾン発生装置 |
JP2002-376797 | 2002-12-26 |
Publications (1)
Publication Number | Publication Date |
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WO2004058637A1 true WO2004058637A1 (ja) | 2004-07-15 |
Family
ID=32677378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/016637 WO2004058637A1 (ja) | 2002-12-26 | 2003-12-24 | オゾン発生装置 |
Country Status (4)
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JP (1) | JP4061373B2 (ja) |
KR (1) | KR100904876B1 (ja) |
CN (1) | CN1330558C (ja) |
WO (1) | WO2004058637A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1038724A (nl) * | 2009-10-03 | 2011-07-18 | Pure Green Technologies B V | Werkwijze en inrichting voor een gasontladingslamp als elektrode voor de produktie van ozon of radikalen. |
CN110200024A (zh) * | 2019-05-20 | 2019-09-06 | 安徽启威生物科技有限公司 | 一种猫用除臭杀菌组合物及其制备方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4669379B2 (ja) * | 2005-11-25 | 2011-04-13 | 野村電子工業株式会社 | 小容量オゾン発生装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6155035U (ja) * | 1984-09-14 | 1986-04-14 | ||
JPH05155606A (ja) * | 1991-12-04 | 1993-06-22 | Yamanashi Hightech Kk | オゾン発生装置 |
JPH06100301A (ja) * | 1992-09-17 | 1994-04-12 | Mitsubishi Heavy Ind Ltd | オゾン発生装置 |
JPH08185955A (ja) * | 1994-12-27 | 1996-07-16 | Takashi Kishioka | 低温プラズマ発生体 |
JP2644973B2 (ja) * | 1994-06-15 | 1997-08-25 | 株式会社シントー | オゾン発生装置 |
JP2001079446A (ja) * | 1999-09-13 | 2001-03-27 | Mitsubishi Electric Corp | 放電ユニット |
JP2002068713A (ja) * | 2000-08-31 | 2002-03-08 | West Electric Co Ltd | オゾン発生装置 |
-
2002
- 2002-12-26 JP JP2002376797A patent/JP4061373B2/ja not_active Expired - Fee Related
-
2003
- 2003-12-24 CN CNB2003801078022A patent/CN1330558C/zh not_active Expired - Fee Related
- 2003-12-24 KR KR1020057011996A patent/KR100904876B1/ko not_active Expired - Fee Related
- 2003-12-24 WO PCT/JP2003/016637 patent/WO2004058637A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6155035U (ja) * | 1984-09-14 | 1986-04-14 | ||
JPH05155606A (ja) * | 1991-12-04 | 1993-06-22 | Yamanashi Hightech Kk | オゾン発生装置 |
JPH06100301A (ja) * | 1992-09-17 | 1994-04-12 | Mitsubishi Heavy Ind Ltd | オゾン発生装置 |
JP2644973B2 (ja) * | 1994-06-15 | 1997-08-25 | 株式会社シントー | オゾン発生装置 |
JPH08185955A (ja) * | 1994-12-27 | 1996-07-16 | Takashi Kishioka | 低温プラズマ発生体 |
JP2001079446A (ja) * | 1999-09-13 | 2001-03-27 | Mitsubishi Electric Corp | 放電ユニット |
JP2002068713A (ja) * | 2000-08-31 | 2002-03-08 | West Electric Co Ltd | オゾン発生装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1038724A (nl) * | 2009-10-03 | 2011-07-18 | Pure Green Technologies B V | Werkwijze en inrichting voor een gasontladingslamp als elektrode voor de produktie van ozon of radikalen. |
CN110200024A (zh) * | 2019-05-20 | 2019-09-06 | 安徽启威生物科技有限公司 | 一种猫用除臭杀菌组合物及其制备方法 |
Also Published As
Publication number | Publication date |
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KR20060010714A (ko) | 2006-02-02 |
CN1732124A (zh) | 2006-02-08 |
CN1330558C (zh) | 2007-08-08 |
JP2004203701A (ja) | 2004-07-22 |
KR100904876B1 (ko) | 2009-06-29 |
JP4061373B2 (ja) | 2008-03-19 |
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