KR100832398B1 - Zirconium ion uv light source and disinfection system device using microwave discharge electrodeless lamp - Google Patents

Abstract

A non-electrode zirconium ultraviolet lamp and a liquid sterilizing device using the same are provided to remove germs in the water by lighting ultraviolet rays having main wavelength of 262.1nm in the water. A liquid sterilizing device includes plural ultraviolet ray emitting portion and a couple of resonance devices(10,20). The ultraviolet ray emitting portion includes an ultraviolet ray lamp and a protection pipe(41). The couple of resonance devices include super-high frequency generator and waveguides. Both ends of lamp tube portion(40) are bonded to the open holes of the couple of resonance devices airtightly. An air provider(50) is installed on the upper part of a waveguide(20) of the resonance devices. A diffuser that communicates with the waveguide and has a diffusing nozzle mounted thereon is installed on the lower part of the waveguides.

Description

Zirconium ion UV Light Source and Disinfection System Device Using Microwave Discharge Electrodeless Lamp}

The present invention relates to a method of sterilizing microorganisms by using the photochemical action of ultraviolet light to dissociate hydrogen that binds the double chain of microorganism DNA to destroy DNA to prevent the growth propagation activity of the microorganism and further kill them. The present invention relates to an ultraviolet generating device used as a means.

The present invention is a UV sterilization apparatus using ultraviolet rays as a device for generating ultraviolet rays to develop a non-electrode zirconium ion discharge type lamp for improving the high output and long life efficiency of the low output short life and low efficiency part which is a weak point of the conventional electrode mercury lamp. The present invention relates to an ultra-high frequency power conversion device for driving in an electrodeless method, a method of connecting the same, a method of cleaning a lamp surface, and a device and a structure to be applied to sterilization of microorganisms including pathogens in water.

UV sterilization method is a trend that the application range is spreading to the characteristics that can kill pathogens only by irradiation of ultraviolet rays.

 Conventional ultraviolet generation technology generally uses a discharge tube manufactured by installing an electrode which causes discharge in a transparent glass tube, evacuating the tube, and encapsulating and vaporizing mercury. The mercury vapor filled by discharging a discharge current through an electrode to the gas layer of the discharge tube was used to emit a unique spectrum of mercury. The line spectrum of monovalent mercury is covered over UV visible infrared light, with 117 lines between 100 and 2000 nm, listed in order of high intensity: 253.7, 435.8, 365.1, 1014.0, 404.7, 296.7, 546.1, 185.0, 256.4, 434.7 nm. Here, the effective wavelength for sterilization is 253.7 nm, which is 37.3% of the intensity of the entire spectrum. The mercury spectrum in this band exhibits about 80% sterilization effect due to a slight deviation from 260 nm, the optimal wavelength for sterilization.

These conventional ultraviolet lamps heat the electrodes to discharge hot electrons during discharge, so that the metals that make up the electrodes evaporate and are deposited on the wall of the pipe to reduce the amount of light, burn out the electrodes, and burn out the lamps. The mercury vapor generated from has adversely affected the environment.

The present invention replaces mercury with zirconium trivalent ions having excellent emission characteristics suitable for sterilization and drives them by an electrodeless discharge method using an ultra-high frequency electric field to achieve a high efficiency, high power, semi-permanent lifespan in a sterilization apparatus using a UV generator. It is about.

The present invention has been made to solve the problems of high cost, short life, low power and the like of the above-described conventional ultraviolet lamp, 2.54GHz, hundreds to thousands of W to oscillate zirconium ions enclosed in the tube from the magnetron, a high-frequency oscillation device with high output It is an object of the present invention to provide an apparatus for exciting an ion with an ultra-high frequency electric field of light to illuminate ultraviolet rays having a main wavelength of 262.1 nm in water to destroy pathogens in water.

The present invention for solving the above problems, the electrodeless ultraviolet lamp to which the electrodeless ultraviolet lamp tube is sealed injection of zirconium or lanthanum ion gas is applied, and the ultraviolet light emitted by the lamp while incorporating and protecting the lamp A plurality of ultraviolet light emitting units made of a protective tube for transmitting the light and the ultra-high frequency generating device and the ultra-high frequency generated by the ultra-high frequency generating device are guided / transmitted in the resonance mode, and a plurality of openings are provided at one side of the electromagnetic fracture point of the electric field or the magnetic field. And a pair of resonators formed of waveguides having a rectangular cross section, wherein both ends of the lamp tube are hermetically sealed to the openings of the pair of resonators. An air supply is installed at the top of the waveguide, and the pair of waveguides Each part communicates with the waveguide and is provided with an diffuser equipped with an diffuser nozzle to allow air to flow from the upper portion of the waveguide to the diffuser nozzle of the diffuser through the space between the lamp and the protective tube. The present invention relates to an apparatus for sterilizing underwater microorganisms using an electrodeless mercury-replaceable ultraviolet lamp, which improves sterilization efficiency by releasing ozone gas and enables highly oxidative treatment of pollutants in water by ozone and ultraviolet rays.

In the present invention, the lamp is a cylindrical tube of fused silica material having a diameter of 10 ~ 30mm, length 200 ~ 2000mm, and put 1 ~ 5mg per 1 cm ³ of zirconium iodide or lanthanum iodide 10 ^-4 ~ 10 ^-5 Torr After exhausting with argon gas is filled with 10 ^-2 Torr and sealed, it can be prepared by melting / evaporating the ultra-high frequency field strength into an electric field of at least 5W / cm ³ or more.

The present invention is possible in various forms depending on the configuration and utilization of the device.

(1) Channel type sterilizer

The present invention is a device that can be utilized by immersing a part of the water required sterilization, a plurality of ultraviolet light emitting unit made of the ultraviolet lamp and a protective tube for transmitting the ultraviolet light emitted by the lamp while inherent and protecting the lamp; And the ultra-high frequency generator and the ultra-high frequency generated by the ultra-high frequency generator in a resonance mode, and a plurality of openings are formed at one side of the electromagnetic fracture point of the electric field or the magnetic field and have a rectangular waveguide. And a pair of resonators; wherein both ends of the ultraviolet light emitting unit are inserted into the openings of the pair of resonators and sealed and bonded by a protective tube. Relates to a device.

That is, in the channel type sterilizing apparatus, both ends of the plurality of ultraviolet light emitting units (lamp 40 + lamp protecting tube 41) are respectively joined to the openings of the resonator (ultra frequency generator 10 + waveguide 20). It is a structure. At this time, it is preferable that the power phase of the power applied to the ultra-high frequency generator of one side and the ultra-high frequency generator of the other side is 180 °.

In addition, in the present invention, an air supply unit is provided at an upper portion of the waveguide, and a diffuser is installed at a lower portion of the pair of waveguides, and an diffuser is provided with a diffuser nozzle, and an upper portion of the waveguide is provided. From the air through the space between the lamp and the protective tube may be allowed to flow to the diffuser nozzle of the diffuser. This flowing air not only cools the lamp, but also converts and diffuses some oxygen into ozone by ultraviolet rays, which in turn increases the sterilization efficiency of the device.

In addition, an ultrasonic vibrator may be added to the present invention to prevent / remove fouling of the surface of the ultraviolet light emitting unit (lamp 40 + lamp protection tube 41) according to long term operation. The installation position of the ultrasonic vibrator may be appropriate depending on the conditions.

(2) Pipe type sterilizer

The present invention is a device that can be utilized when the water required to sterilize flows along the tube, a plurality of ultraviolet light emitting unit consisting of the ultraviolet lamp and a protective tube for transmitting the ultraviolet light emitted by the lamp while protecting it [lamp (40) + lamp protection tube 41]; and the ultra-high frequency generator and the ultra-high frequency generated by the ultra-high frequency generator in the resonance mode, a plurality of openings on one side of the electromagnetic fracture point of the electric field or the magnetic surface A pair of resonators comprising a curved waveguide ; And a chamber in which water inlets and water outlets are formed at one side and the other side, respectively, and both ends of the chamber are sealed by the pair of resonators. The ultraviolet light emitting unit (lamp 40 + lamp) is configured. Protection tube (41)] is inherent in the chamber, and both ends of the lamp tube is a microbial sterilizing apparatus for underwater microorganisms using an electrodeless mercury-replacement UV lamp which is hermetically sealed to the opening of the pair of resonators (column) Type-pipe type sterilizer).

That is, in the pipeline type sterilizer, both ends of the plurality of ultraviolet light emitting units (lamp 40 + lamp protecting tube 41) are respectively joined to the openings of the resonator (ultra frequency generator 10 + waveguide 20). It is a structure, the lamp tube is embedded in the chamber and the resonator device serves as a lid of the chamber. In this case, each resonator may be formed by a plurality of waveguides forming a concentric circle and an ultra-high frequency generator installed in each waveguide. 5 is attached to [ultra frequency generator + donut waveguide] forming one source, and [ultra frequency generator + semicircular waveguide] forming a semicircular shape and concentric circles outside the inner circle, that is, three [ultra frequency generators] + Curved waveguide] shows an example in which one resonator is constructed. Of course, the corresponding chamber is also cylindrical.

Similarly, it is preferable that the power phases of the power source applied to the ultra high frequency generator of one side and the ultra high frequency generator of the other side are 180 degrees.

In the same concept, a pipeline sterilization apparatus in which short straight waveguides are arranged side by side is also possible (not shown). That is, several ultra high frequency generators + short straight waveguides may be connected to each other to select a chamber having a rectangular resonator and a cross section corresponding thereto (a square column-pipe type sterilizer).

The ultrasonic vibration device is the same as in (1) above.

(3) submerged sterilizer

The present invention is a device having a simple structure without a large sterilization capacity, ultra-high frequency generating device; And a protective tube for resonator for integrating and protecting the ultraviolet lamp and the lamp 40 while transmitting ultraviolet light emitted by the lamp and shielding electromagnetic waves, and inducing / transmitting the ultra-high frequency generated by the ultra-high frequency generating device in a resonance mode. It relates to an apparatus for sterilizing underwater microorganisms using an electrodeless mercury-replacement ultraviolet lamp configured to include.

In the case of the present invention, the waveguide for inducing / transmitting the ultra-high frequency generated in the ultra-high frequency generating device in the resonance mode and the protection tube inherently protecting the lamp 40 are integrally formed.

The ultrasonic vibration device is the same as in (1) above.

The zirconium electrodeless ultraviolet sterilizer using microwaves according to the preferred embodiment of the present invention having the above-described structure uses a high power ultra-high frequency generator to emit ultraviolet light in the 260 nm band having high sterilization efficiency (a plurality of ultraviolet light emitters (lamps 40+). It is economical because the lamp protection tube 41 can be operated by one driving means.

In addition, since the electrodeless ultraviolet lamp according to the present invention is used, there is no factor of reducing the lifespan due to electrode deterioration, and consequently, the maintenance cost of the lamp is reduced due to the effect of prolonging the life of the ultraviolet lamp and the problem of mercury contamination is eliminated. Environmental effects are also very big.

In addition, since the ultraviolet light emitting property is higher than mercury, the sterilization range is extended to reduce the number of lamps required per unit volume, and the fouling phenomenon that is expected to occur in the tube wall of the ultraviolet light emitting part by ultrasonic waves is prevented.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. However, these drawings and embodiments are only examples for easily explaining the contents and scope of the technical idea of the present invention, and thus the technical scope of the present invention is not limited or changed. In addition, it will be apparent to those skilled in the art that various modifications and changes can be made within the scope of the present invention based on these examples.

1 is a diagram showing the sterilization efficiency according to the wavelength of ultraviolet rays. Ⓒ is a sterilization efficiency curve, and ⓛ and 를 represent the main wavelength bands of mercury ion lanthanum ion and zirconium ion, respectively. As can be seen from the graph, the highest sterilization efficiency is 267nm, the main wavelength of mercury lamp is 253.6nm, lanthanum ion is 259.8nm, zirconium ion is 262.1nm. Zirconium ultraviolet rays show more than 20% UV sterilization effect compared to mercury ultraviolet rays (ultraviolet rays by conventional mercury lamps).

FIG. 2 is a chart showing the relative ultraviolet emission intensity (Rel. Intensity) of each ion lamp when the same energy is applied. Ⓐ ⓛ and ⓩ represent the main wavelength bands of mercury ion lanthanum ion and zirconium ion, respectively. The relative UV emission intensities at the main wavelengths of mercury, lanthanum and zirconium lamps were 15,000, 95,000 and 10,000,000, respectively. In other words, lanthanum ions are 6.3 times and zirconium ions are 666 times higher than the ultraviolet light intensity of conventional mercury ions.

3 is a table showing 254 nm ultraviolet lethal dose of various microorganisms. Escherichia, the main target of underwater sterilization coli ) has a lethal dose of 7000 uW / sec / cm 2.

In the present invention, the lamp tube is an electrodeless ultraviolet lamp tube in which zirconium or lanthanum ion gas is injected instead of mercury.

The material of the lamp 40 is preferably a material (eg, fused silica) that transmits more than 90% of the wavelength in the 260nm band, and the shape is preferably a cylindrical structure having a diameter of 10 to 30mm and a length of 200 to 2000mm. The lamp 40 is filled with 1 to 5 mg of zirconium iodide or lanthanum iodide per 1 cm ³ of the volume of the lamp tube 10, and is evacuated to 10 ^-4 to 10 ^-5 Torr, and then filled with argon gas at 10 ^-2 Torr to be sealed. After the high-frequency electric field strength is put into an electric field furnace of at least 5W / cm ³ or more to manufacture through the process of melting / evaporation.

In the present invention, as the ultra-high frequency generating device 10, for example, various devices such as a magnetron, a magnetron, a klystron or a traveling wave tube can be selected. The frequency of the generated ultra-high frequency may be variously determined such as 900MH band, 2.45GHz band or 5.3GHz band according to the type of ions injected into the lamp tube, the luminous intensity, the waveguide specification, and the like. In the following example, a magnetron in the 2.45 GHz band was selected.

4 is a cross-sectional view and a three-dimensional view of the waterway type sterilizer according to the first embodiment of the present invention. The part deposited in the water is a waveguide resonator 20 equipped with an ultraviolet light emitting unit (lamp 40 + lamp protection tube 41), and the remaining part is installed on the surface of the water and the magnetron 10 is a magnetron power supply 11. Ultrasonic waves of a predetermined frequency are supplied from the pulse wave power of about 4000 V and 180 mA from the waveguide 20 in the TE017 mode, and resonate. At this time, an ultraviolet lamp (L) at the fracture point 21 of the resonance pattern 22 is resonated. 40) is inserted.

The outside of the ultraviolet lamp 40 is protected by a high purity fused silica protective tube 41, which protects the ultraviolet lamp 40 from direct contact with water, and the protective tube 41 has an O-ring 42 and a cap 43 Is kept confidential.

Meanwhile, the air compressor (50) blows external air into the waveguide (20) through, for example, the metal filter (51), and the air flows into the gap between the lamp 40 and the protection tube 41, and the other side is introduced. The lower part of the waveguide is conveyed through the metal filter 51, and the lower part of the sterilization apparatus in which the lamp 40 is arranged is introduced into the empty support pipe 60 similar to the waveguide. The support tube 60 has a built-in diffuser 53 in which the ultrasonic vibrator 30 and the check valve 52 are incorporated in addition to the mechanism of coupling the waveguide resonator 20 to which the lamp 40 is coupled. Ultrasonic vibrator (30) mounted to the one that receives the electric signal of 20 ~ 28Khz from the ultrasonic oscillator (31) is responsible for transmitting ultrasonic vibration through the wall of the support tube 60 in the water. Equipment that sterilizes for a long time in the water generates fouling phenomenon such as moss, which is a major factor that hinders underwater irradiation of ultraviolet rays, and it is necessary to periodically clean the surface of the lamp. Ultrasonic vibration is irradiated into the water through to prevent fouling on the surface of the lamp and the surface of the structure.

On the other hand, the air passing between the lamp 40 and the protective tube 41 serves to prevent the temperature rise of the lamp tube, so that a low concentration of ozone is generated by short wavelength ultraviolet rays shorter than some 222 nm generated in the lamp tube. . This is due to the photochemical action of ultraviolet light, and oxygen molecules in the air dissociate into oxygen atoms by ultraviolet rays shorter than 222 nm, and these oxygen atoms combine with oxygen molecules to generate ozone (О₃). In the present invention, the ozone generated during the cooling process of the lamp tube is sprayed into the water through the diffuser 53 to help sterilize the water and to perform a highly oxidized treatment process by ultraviolet rays and ozone.

5 is a perspective view of a pipeline sterilization apparatus according to a second embodiment of the present invention.

Pipe-type sterilizer is basically similar to the pipe-type, but the structure of the waveguide 20 is not a straight tube, the insertion position of the lamp 40 of the electromagnetic wave 22 is located in the waveguide tube resonator 20 of the curved tube type It is located at the fracture point (21). Inlet 71 is a flange type and the water obtained is discharged to the outside through the discharge port 72 via the cylindrical chamber 70, a plurality of ultraviolet light emitting unit (lamp 40 + lamp protection tube ( 41)] is exposed to ultraviolet light emitted from the process and subjected to sterilization. On the other hand, both sides of the chamber 70 is provided with an ultrasonic vibrator is applied to the vibration of the ultrasonic wave underwater in the wall to prevent fouling adhesion of the pipe wall.

6 is a conceptual cross-sectional view of the submerged sterilization apparatus according to the third embodiment of the present invention.

Ultra-high frequency radiated from the magnetron 10 of the submerged ultraviolet sterilizer is injected into the waveguide resonator 20 made of columnar fused silica.

The resonant mode of the columnar waveguide resonator 20 whose lower end is sealed with fused silica and whose inner wall is composed of a shield 25 (for example, a metal screen of 20-50 mesh) is the same as the resonant pattern 22 in TM01n mode. One side or the entire surface of the waveguide resonator 20 in which the ultraviolet lamp tube 40 is embedded is provided with a conductive shield 25 so that only light can pass through while preventing electromagnetic leakage. It is sealed with a permeable material (such as fused silica glass). The shield 25 may use a perforated plate or a metal mesh net in which small pores are formed, and may be a lath having a lattice of 1.5 to 2.5 mm or a metal mesh of 8 to 20 mesh.

Ultraviolet light emitting unit (lamp 40 + lamp protection tube 41) located in the center of the waveguide resonator 20 is a structure that is emitted by the ultra-high frequency and is emitted to the outside of the waveguide resonator, the ultrasonic vibrator 30 on the upper support plate 73 The ultrasonic vibration is applied to the water to prevent fouling and to increase the sterilization effect due to the change of position of the microorganisms in the water due to the vibration of the water.

1 is a diagram showing the sterilization efficiency according to the wavelength of ultraviolet rays.

2 is a chart showing the relative UV emission intensity of each ion lamp when the same energy is applied.

3 is a table showing 254 nm ultraviolet lethal dose of various microorganisms.

4 is a cross-sectional view and a three-dimensional view of the waterway type sterilizer according to the first embodiment of the present invention.

5 is a perspective view of a pipeline sterilization apparatus according to a second embodiment of the present invention.

6 is a conceptual cross-sectional view of a beheaded sterilizer according to a third embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10. Ultra high frequency generator 20. Waveguide

21. Break point 22. Resonance pattern

30. Ultrasonic vibrator 40. Lamp tube

41. Protective tube 50. Air supply

60. Diffuser 70. Chamber

Claims (10)

delete delete A plurality of ultraviolet rays comprising an electrodeless mercury-replacement ultraviolet lamp to which an electrodeless ultraviolet lamp tube sealed with zirconium or lanthanum ion gas is applied, and a protective tube which transmits the ultraviolet light emitted by the lamp while incorporating and protecting the lamp. The light emitting unit and the ultra-high frequency generator and the ultra-high frequency generated by the ultra-high frequency generator are guided / transmitted in the resonance mode, and a plurality of openings are formed at one side of the electromagnetic fracture point of the electric field or the magnetic field, and the cross section is a rectangular waveguide. In the underwater microorganism sterilization apparatus comprising a pair of resonator device, wherein both ends of the lamp tube portion is hermetically sealed to the opening of the pair of resonator device, An air supplier is installed on the top of the waveguide, The lower part of the pair of waveguides communicates with the waveguides, and an diffuser is provided with a diffuser nozzle. Air flows from the upper part of the waveguide to the diffuser nozzle of the diffuser through the space between the lamp and the protective tube to release ozone gas into the water, thereby improving sterilization efficiency and highly oxidizing pollutants in the water by ozone and ultraviolet rays. Underwater microorganism sterilization apparatus using an electrodeless mercury replacement UV lamp, characterized in that the treatment is possible. The method of claim 3, wherein Underwater microbial sterilizer using an electrodeless mercury-replacement ultraviolet lamp, characterized in that the ultrasonic vibration device for preventing / removing the fouling of the surface of the lamp tube in accordance with long-term operation. A plurality of ultraviolet rays comprising an electrodeless mercury-replacement ultraviolet lamp to which an electrodeless ultraviolet lamp tube sealed with zirconium or lanthanum ion gas is applied, and a protective tube which transmits the ultraviolet light emitted by the lamp while incorporating and protecting the lamp. Light emitting unit; and A pair of resonators consisting of an ultra-high frequency generator and an ultra-high frequency generated by the ultra-high frequency generator in a resonant mode, and comprising a curved waveguide having a plurality of openings on one side of an electromagnetic fracture point of an electric field or a magnetic field. ; And A water inlet and a water outlet are formed at one side and the other side of the side, respectively, and the chambers are sealed at both ends by the pair of resonators. And the ultraviolet light emitting unit is embedded in the chamber, and both ends of the ultraviolet light emitting unit are sealed and bonded to the openings of the pair of resonators, respectively. A plurality of ultraviolet rays comprising an electrodeless mercury-replacement ultraviolet lamp to which an electrodeless ultraviolet lamp tube sealed with zirconium or lanthanum ion gas is applied, and a protective tube which transmits the ultraviolet light emitted by the lamp while incorporating and protecting the lamp. Light emitting unit; and The ultra-high frequency generator and the ultra-high frequency generated by the ultra-high frequency generator are induced / transmitted in the resonance mode, and short straight waveguides having a plurality of openings formed at one side of the electromagnetic fracture point of the electric field or the magnetic field are arranged side by side. A pair of resonators; And A water inlet and a water outlet are formed at one side and the other side of the side, respectively, and the chambers are sealed at both ends by the pair of resonators. The lamp tube unit is embedded in the chamber, the both ends of the lamp tube is a microbial sterilizing apparatus using an electrodeless mercury replacement UV lamp, characterized in that each of the sealing opening is connected to the opening of the pair of resonator. The method of claim 5, wherein An underwater microbial sterilizer using an electrodeless mercury-replacement ultraviolet lamp, characterized in that an ultrasonic vibrator is added to prevent / remove fouling of the surface of the ultraviolet light emitting part due to long-term operation. delete An electrodeless mercury replacement ultraviolet lamp to which an electrodeless ultraviolet lamp tube in which zirconium or lanthanum ion gas is sealed-injected is applied; Microwave equipment; A waveguide combined ultraviolet light emitting unit which inherently protects the lamp and the microwave generator and transmits ultraviolet light emitted by the lamp and shields electromagnetic waves, and guides / transmits the microwave generated by the microwave generator in a resonance mode; And Ultrasonic vibration device for preventing / removing the fouling of the surface of the lamp tube in accordance with long-term operation; Underwater microorganism sterilization apparatus using an electrodeless mercury replacement ultraviolet lamp, characterized in that it comprises a. The method of claim 6, An underwater microbial sterilizer using an electrodeless mercury-replacement ultraviolet lamp, characterized in that an ultrasonic vibrator is added to prevent / remove fouling of the surface of the ultraviolet light emitting part due to long-term operation.

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