CN112885704A - Excimer germicidal lamp tube and preparation method thereof, germicidal lamp and assembly thereof - Google Patents
Excimer germicidal lamp tube and preparation method thereof, germicidal lamp and assembly thereof Download PDFInfo
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- CN112885704A CN112885704A CN202110283032.7A CN202110283032A CN112885704A CN 112885704 A CN112885704 A CN 112885704A CN 202110283032 A CN202110283032 A CN 202110283032A CN 112885704 A CN112885704 A CN 112885704A
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- lamp tube
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- 230000002070 germicidal effect Effects 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000003860 storage Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 90
- 229910052743 krypton Inorganic materials 0.000 claims description 30
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 30
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
- 239000000460 chlorine Substances 0.000 claims description 15
- 229910052801 chlorine Inorganic materials 0.000 claims description 15
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 15
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229920007019 PC/ABS Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010891 electric arc 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
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation 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
- 239000012466 permeate Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/385—Exhausting vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/395—Filling vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/40—Closing vessels
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Manufacturing & Machinery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an excimer germicidal lamp tube and a preparation method thereof, a germicidal lamp and a component thereof, wherein the lamp tube comprises: the lamp tube comprises a lamp tube body, wherein an air storage cavity is arranged in the lamp tube body, two ends of the air storage cavity are pressed and sealed, the air storage cavity and the outside are kept airtight, and an electrode is not arranged on the lamp tube body; the exhaust pipe is arranged on the lamp tube body and used for filling working gas into the gas storage cavity when the gas storage cavity is in a vacuum state after being sealed. By implementing the invention, the lamp tube body and the gas storage cavity are arranged, and the exhaust pipe is arranged on the lamp tube body, so that the processes of vacuumizing and filling gas into the lamp tube can be more convenient. Meanwhile, no electrode is arranged on the excimer germicidal lamp tube, the structure can continuously produce the lamp tube body, and only the electrode is arranged on the outer surface of the lamp tube when the excimer germicidal lamp tube is used, namely the electrode and the lamp tube adopt a separated design, so that the lamp tube or the electrode can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
Description
Technical Field
The invention relates to the technical field of sterilization equipment, in particular to an excimer lamp tube, a preparation method thereof, a sterilization lamp and a component thereof.
Background
The prior excimer germicidal lamp has two electrode arrangement modes: one is an inner electrode structure and an outer electrode structure of a double-tube structure; still another is to adopt a single tube structure in which positive and negative electrodes form discharge planes parallel to each other, respectively.
However, in the dual-tube structure, the manufacturing method of the electrode is complicated, and the electrode is difficult to fix and replace, which results in a complex structure and high cost of the dual-tube electrode. The single tube structure usually needs to adopt a mode of printing electrodes during preparation, the service life of the printing electrodes is short, the process is complicated, and meanwhile, the printing electrodes are cured on the quartz tube at high temperature, so that the electrode or the lamp tube is required to be integrally replaced when damaged.
Disclosure of Invention
In view of this, embodiments of the present invention provide an excimer lamp tube, a manufacturing method thereof, a germicidal lamp and components thereof, so as to solve the technical problems of complicated structure and complicated process of the excimer lamp in the prior art.
The technical scheme provided by the embodiment of the invention is as follows:
in a first aspect, an embodiment of the present invention provides an excimer lamp, including: the lamp tube comprises a lamp tube body, wherein an air storage cavity is arranged in the lamp tube body, two ends of the air storage cavity are sealed in a pressing mode, the air storage cavity and the outside are kept airtight, and an electrode is not installed on the lamp tube body; the exhaust pipe is arranged on the lamp tube body and used for filling working gas into the gas storage cavity when the gas storage cavity is in a vacuum state after being sealed.
Optionally, the working gas comprises: the gas storage cavity comprises a gas storage cavity body and a gas storage cavity body, wherein the gas storage cavity body is filled with a mixed gas of krypton and chlorine or a mixed gas of krypton and hydrogen chloride, the volume ratio of krypton to chlorine is 500: 1-20: 1, and the pressure of the mixed gas of krypton and chlorine is 10-50 Kpa; the volume ratio of the krypton to the hydrogen chloride is 500: 1-20: 1, and the pressure of the mixed gas of the krypton and the hydrogen chloride in the gas storage cavity is 10 Kpa-50 Kpa.
Optionally, the diameter of the lamp tube body is 5 mm-50 mm, and the length of the air storage cavity is 20 mm-200 mm.
The second aspect of the embodiments of the present invention provides a method for manufacturing an excimer lamp, including: intercepting a quartz lamp tube with a preset length, and removing hydroxyl in the intercepted lamp tube; sealing two ends of the cut lamp tube; the lamp tube body is connected with an exhaust pipe; vacuumizing the lamp tube through an exhaust pipe, and filling working gas through the exhaust pipe; the exhaust tube was closed and the lamp tube was checked for gas tightness.
A third aspect of an embodiment of the present invention provides a germicidal lamp, including: the excimer lamp tube comprises a lamp tube, a first electrode and a second electrode, wherein the lamp tube adopts the excimer lamp tube in any one of the first aspect and the second aspect of the embodiment of the invention, the first electrode and the second electrode are detachably arranged on the outer surface of the lamp tube, the first electrode and the second electrode are arranged side by side along the length direction of the lamp tube, the gap between the first electrode and the second electrode is 5 mm-20 mm, and an electric field generated between the first electrode and the second electrode excites working gas in the lamp tube to emit light.
Optionally, the first electrode and/or the second electrode comprises: the electrode plate is any one of an aluminum electrode plate, an aluminum alloy electrode plate, a stainless steel electrode plate, a copper electrode plate, a ferroelectric electrode plate and a silver electrode plate, and a group of first electrodes and second electrodes are used for exciting one or more excimer germicidal lamp tubes to discharge.
Optionally, the lamp tube is of a circular tube structure, and the electrode plate is of an arc-shaped structure concentric with the lamp tube and provided with a preset included angle.
A fourth aspect of an embodiment of the present invention provides a germicidal lamp assembly, including: a plurality of germicidal lamps according to any of the second and third aspects of the embodiments of the present invention; the shell comprises an upper shell and a lower shell, the upper shell is any one of a PEI upper shell, a PC/ABS upper shell, a PA upper shell or a ceramic upper shell, and the lower shell is any one of a PEI lower shell, a PC/ABS lower shell, a PA lower shell or a ceramic lower shell.
Optionally, the germicidal lamp assembly further comprises: and the band-pass filter is used for transmitting the light of the preset wave band emitted by the germicidal lamp.
Optionally, the germicidal lamp assembly further comprises: the sealing ring is arranged between the upper shell and the lower shell and used for sealing the germicidal lamp assembly and preventing ozone from being released; the power supply is used for driving a group of germicidal lamps or simultaneously driving a plurality of groups of germicidal lamp assemblies.
The technical scheme of the invention has the following advantages:
according to the excimer lamp tube provided by the embodiment of the invention, the lamp tube body and the gas storage cavity are arranged, and the exhaust pipe is arranged on the lamp tube body, so that in the production process of the lamp tube, the two sides of the obtained lamp tube can be firstly pressed and sealed, and then the cavity is vacuumized and the working gas is filled through the exhaust pipe, so that the processes of vacuumizing and filling the gas into the lamp tube are more convenient. Meanwhile, no electrode is arranged on the excimer germicidal lamp tube, the structure can continuously produce the lamp tube body, and only the electrode is arranged on the outer surface of the lamp tube when the excimer germicidal lamp tube is used, namely the electrode and the lamp tube adopt a separated design, so that the lamp tube or the electrode can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
According to the preparation method of the excimer lamp tube provided by the embodiment of the invention, after the lamp tube with the preset length is cut out and sealed by pressing, the exhaust tube is arranged on the lamp tube body, and the evacuation of the cavity and the filling of the working gas can be carried out through the exhaust tube, so that the processes of the evacuation and the filling of the gas of the lamp tube are more convenient. Meanwhile, the structure of the sealed discharge space is formed by double-side press sealing, the manufacturing process is similar to that of a 254nm mercury lamp, the manufacturing cost is low, the process is mature, and the reject ratio is low. In addition, no electrode is arranged on the excimer germicidal lamp tube, the structure can continuously produce the lamp tube body, and only the electrode is arranged on the outer surface of the lamp tube when in use, namely the electrode and the lamp tube adopt a separated design, so that the lamp tube or the electrode can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
According to the germicidal lamp provided by the embodiment of the invention, the first electrode and the second electrode are detachably arranged on the lamp tube, namely the first electrode, the second electrode and the lamp tube are in a separated design, so that the lamp tube or the electrodes can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
The germicidal lamp assembly provided by the embodiment of the invention adopts the upper shell and the lower shell to combine a plurality of germicidal lamps together, thereby being convenient for users to use. Simultaneously, the setting of going up shell and lower shell can also protect the bactericidal lamp.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of an excimer lamp according to an embodiment of the present invention;
FIG. 2 is a front view of an excimer lamp according to an embodiment of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a top view of an excimer lamp according to an embodiment of the present invention;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 is a flowchart illustrating a method for manufacturing an excimer lamp according to an embodiment of the present invention;
FIG. 7 is a block diagram of a germicidal lamp in accordance with an embodiment of the present invention;
FIG. 8 is a block diagram of a germicidal lamp in accordance with another embodiment of the present invention;
FIG. 9 is a block diagram of the germicidal lamp assembly in an embodiment of the present invention;
FIG. 10 is a block diagram of a germicidal lamp assembly in accordance with another embodiment of the present invention;
fig. 11 is a block diagram illustrating a germicidal lamp assembly in accordance with another embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
An embodiment of the present invention provides an excimer lamp, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the excimer lamp includes: the lamp tube comprises a lamp tube body 1, wherein a gas storage cavity 3 is arranged in the lamp tube body 1, two ends of the gas storage cavity 3 are press-sealed, the gas storage cavity 3 keeps airtight with the outside, and an electrode is not arranged on the lamp tube body 1; the exhaust pipe 2 is arranged on the lamp tube body 1, and the exhaust pipe 2 is used for filling working gas into the gas storage cavity 3 when the gas storage cavity 3 is in a vacuum state after being pressed and sealed.
According to the excimer lamp tube provided by the embodiment of the invention, the lamp tube body 1 and the gas storage cavity 3 are arranged, and the exhaust pipe 2 is arranged on the lamp tube body 1, so that in the production process of the lamp tube, the two sides of the obtained lamp tube can be firstly pressed and sealed, then the cavity is vacuumized through the exhaust pipe 2, and the working gas is filled, so that the processes of vacuumizing and filling the gas into the lamp tube are more convenient. Meanwhile, no electrode is arranged on the excimer germicidal lamp tube, the structure can continuously produce the lamp tube body 1, and only the electrode is arranged on the outer surface of the lamp tube when in use, namely the electrode and the lamp tube adopt a separated design, so that the lamp tube or the electrode can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
In one embodiment, in order to make the excimer lamp emit ultraviolet light during operation, the working gas is a mixed gas of krypton and chlorine or a mixed gas of krypton and hydrogen chloride. When the excimer lamp discharges by adopting the mixed gas, ultraviolet light with the central wavelength of 222nm can be emitted. In a specific embodiment, the volume ratio of the krypton to the chlorine is 500: 1-20: 1, and the pressure of the mixed gas of the krypton and the chlorine in the gas storage cavity 3 is 10 Kpa-50 Kpa; the volume ratio of the krypton to the hydrogen chloride is 500: 1-20: 1, and the pressure of the mixed gas of the krypton and the hydrogen chloride in the gas storage cavity 3 is 10 Kpa-50 Kpa.
In order to make the excimer germicidal lamp tube have better stability of light emission during operation, the gas storage cavity 3 can be filled with auxiliary gas, and the auxiliary gas is helium and/or neon. The auxiliary gas does not emit light, and the volume of the auxiliary gas accounts for 0-40% of the volume of the gas storage cavity body 3.
In one embodiment, the diameter of the lamp body 1 is 5mm to 50mm, and the length of the gas storage cavity 3 is 20mm to 200 mm. In a specific embodiment, the lamp body 1 may be a circular tube structure, or may be a square tube or other structures according to actual needs.
Example 2
The embodiment of the invention provides a preparation method of an excimer lamp tube, as shown in fig. 6, the method comprises the following steps:
step S101: intercepting a quartz lamp tube with a preset length, and removing hydroxyl in the intercepted lamp tube; in an embodiment, when the excimer lamp tube is prepared, a lamp tube with a preset length, for example, a lamp tube with a length of 2cm to 20cm, may be cut out according to actual needs, and then hydroxyl groups in the cut-out lamp tube may be removed, because the ultraviolet lamp may permeate the hydroxyl groups into the lamp tube at high temperature during operation, the hydroxyl groups and the mixed gas in the sealed cavity may undergo a reduction reaction with the rise of the temperature of the lamp tube under the action of the electric arc, thereby reducing the service life of the lamp tube. Specifically, after removing the hydroxyl groups, the content of the hydroxyl groups in the lamp tube is less than or equal to 10 PPM.
Step S102: sealing two ends of the cut lamp tube; in one embodiment, after the lamp tube is cut and the hydroxyl groups are removed, the two ends of the lamp tube can be press-sealed, so that the air storage cavity in the lamp tube is airtight with the outside.
Step S103: the lamp tube body is connected with an exhaust pipe; in an embodiment, after the lamp tube is sealed, an exhaust pipe may be connected to the lamp tube, and particularly, the exhaust pipe may be formed in a welded manner at a middle position of the lamp tube body, so that exhaust and inflation may be performed through the exhaust pipe. In addition, the exhaust pipe may also be disposed at other positions on the lamp body, which is not limited in the present invention.
Step S104: vacuumizing the lamp tube through the exhaust pipe, and filling working gas through the exhaust pipe; in one embodiment, after the exhaust pipe is formed, air in the air storage cavity of the lamp tube can be pumped out through the exhaust pipe, so that the air storage cavity is in a vacuum state. Then the working gas is filled in through the exhaust pipe, so that the subsequent light emission of the excimer lamp tube is facilitated.
In one embodiment, in order to make the excimer lamp emit ultraviolet light during operation, the working gas is a mixed gas of krypton and chlorine or a mixed gas of krypton and hydrogen chloride. When the excimer lamp discharges by adopting the mixed gas, ultraviolet light with the central wavelength of 222nm can be emitted. In a specific embodiment, the volume ratio of the krypton to the chlorine is 500: 1-20: 1, and the pressure of the mixed gas of the krypton and the chlorine in the gas storage cavity is 10 Kpa-50 Kpa; the volume ratio of the krypton to the hydrogen chloride is 500: 1-20: 1, and the pressure of the mixed gas of the krypton and the hydrogen chloride in the gas storage cavity is 10 Kpa-50 Kpa.
Step S105: the exhaust tube was closed and the lamp tube was checked for gas tightness. In one embodiment, after the working gas is filled into the gas storage cavity according to the volume and the pressure in the gas storage cavity meets the requirement, the exhaust pipe can be sealed, and the gas tightness of the lamp tube gas storage cavity is checked to make the gas tightness meet the required requirement.
According to the preparation method of the excimer lamp tube provided by the embodiment of the invention, after the lamp tube with the preset length is cut out and sealed by pressing, the exhaust tube is arranged on the lamp tube body, and the evacuation of the cavity and the filling of the working gas can be carried out through the exhaust tube, so that the processes of the evacuation and the filling of the gas of the lamp tube are more convenient. Meanwhile, the structure of the sealed discharge space is formed by double-side press sealing, the manufacturing process is similar to that of a 254nm mercury lamp, the manufacturing cost is low, the process is mature, and the reject ratio is low. In addition, no electrode is arranged on the excimer germicidal lamp tube, the structure can continuously produce the lamp tube body, and only the electrode is arranged on the outer surface of the lamp tube when in use, namely the electrode and the lamp tube adopt a separated design, so that the lamp tube or the electrode can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
Example 3
An embodiment of the present invention further provides a germicidal lamp, as shown in fig. 7, the germicidal lamp includes: the lamp tube adopts the excimer lamp tube in the embodiment, the first electrode 4 and the second electrode 5 are detachably arranged on the outer surface of the lamp tube, the first electrode 4 and the second electrode 5 are arranged side by side along the length direction of the lamp tube, the gap D between the first electrode 4 and the second electrode 5 is 5 mm-20 mm, and the working gas in the lamp tube is excited to emit light by the electric field generated between the first electrode 4 and the second electrode 5.
In one embodiment, as shown in fig. 7, when the germicidal lamp is used, the first electrode 4 and the second electrode 5 may be connected to a high voltage ac power supply 10, the high voltage ac power supply 10 is in a range of 2K volts to 20K volts, so that after the germicidal lamp is started, a high voltage between the first electrode 4 and the second electrode 5 discharges a mixed gas of krypton and chlorine or a mixed gas of krypton and hydrogen chloride as a working gas in a breakdown gas storage cavity, and the mixed gas of krypton and chlorine or the mixed gas of krypton and hydrogen chloride emits ultraviolet light with a central wavelength of 222nm when the mixed gas of krypton and chlorine or the mixed gas of krypton and hydrogen chloride discharges.
According to the germicidal lamp provided by the embodiment of the invention, the first electrode 4 and the second electrode 5 are detachably mounted on the lamp tube, namely the first electrode 4, the second electrode 5 and the lamp tube are in a separated design, so that the lamp tube or the electrodes can be independently replaced, and the maintenance cost of the germicidal lamp is reduced.
In one embodiment, the germicidal lamp, when in operation, may connect the first electrode 4 and the second electrode 5 to a high voltage ac power source 10, where, as shown in fig. 8, the first electrode 4 and/or the second electrode 5 comprises: the electrode comprises an electrode binding post 42 and an electrode plate 41, wherein the electrode plate 41 is any one of an aluminum electrode plate, an aluminum alloy electrode plate, a stainless steel electrode plate, a copper electrode plate, a ferroelectric electrode plate and a silver electrode plate. In one embodiment, the electrode plate 41 is formed by stamping, and is low in cost and stable in size. When the electrode plate 41 is an aluminum electrode plate, the aluminum electrode plate can be a high-purity aluminum electrode plate capable of reflecting ultraviolet rays in the UVC band, and the reflection surface of the aluminum electrode plate can reach a reflectivity of 30% -95%. Thus, the electrode sheet 41 can function as a reflector while functioning as an electrode. Meanwhile, when the electrode tab 41 and the electrode post 42 are used as electrodes, the electrode post 42 may be riveted to the electrode tab 41.
In one embodiment, when the germicidal lamp is operated, the germicidal lamp can be discharged by using metal male and female spring contacts, in addition to the external connection of the high-voltage alternating-current power supply 10. At this time, the first electrode 4 and/or the second electrode 5 may include only an electrode tab without providing an electrode post.
In an embodiment, the first electrode 4 and the second electrode 5 can be disposed on one side and tightly attached to the lamp tube, and meanwhile, an insulating material is disposed between the first electrode 4 and the second electrode 5, so that effective isolation between the first electrode 4 and the second electrode 5 is achieved, and safety and service life of the germicidal lamp are ensured. In one embodiment, the first electrode 4 is a positive electrode, the second electrode 5 is a negative electrode, and a set of the first electrode 4 and the second electrode 5 can excite one or more lamps to discharge simultaneously, for example, 1 to 6 lamps can be excited to discharge. In a specific embodiment, the shape of the first electrode 4 and/or the second electrode 5 may be any one of solid, mesh, or zigzag, which is not limited in the present invention.
In one embodiment, the cross section of the lamp tube can be in a square, oval or round structure, and when the cross section of the lamp tube is square, the diameter of the excircle of the cross section of the air storage cavity of the lamp tube is 5-50 mm; when the section of the air storage cavity is elliptical, the long axis of the section of the air storage cavity of the lamp tube is 5-50 mm; when the section of the air storage cavity is elliptical, the diameter of the section of the air storage cavity of the lamp tube is 5 mm-50 mm. In an embodiment, as shown in fig. 8, when the lamp tube is a circular tube structure, the electrode plate is a circular arc structure concentric with the lamp tube and having a predetermined included angle, specifically, the predetermined included angle a may be 30 ° to 150 °.
Example 4
An embodiment of the present invention further provides a germicidal lamp assembly, as shown in fig. 9, 41, including: a plurality of germicidal lamps as described in the above embodiments; a housing comprising an upper housing 6 and a lower housing 7. In one embodiment, the upper housing 6 is any one of a PEI upper housing, a PC/ABS upper housing, a PA upper housing, or a ceramic upper housing, and the lower housing 7 is any one of a PEI lower housing, a PC/ABS lower housing, a PA lower housing, or a ceramic lower housing. The number of germicidal lamp assemblies arranged in one shell can be 1-8. Specifically, the housing of the germicidal lamp assembly is provided with a fixing hole, and the electrode on the germicidal lamp can be fixed on the housing through the fixing hole.
According to the germicidal lamp assembly provided by the embodiment of the invention, the upper shell 6 and the lower shell 7 are adopted to combine a plurality of germicidal lamps together, so that the germicidal lamp assembly is convenient for a user to use. Meanwhile, the arrangement of the upper shell 6 and the lower shell 7 can also protect the germicidal lamp.
In one embodiment, as shown in fig. 10, the germicidal lamp assembly further comprises: and the band-pass filter 8 is used for transmitting the light with the preset wave band emitted by the germicidal lamp through the band-pass filter 8. In one embodiment, the band-pass filter 8 can transmit light beams of 200nm to 230nm, that is, the band-pass filter 8 can cut off wavelengths harmful to human body and transmit a wavelength band safe to human body, so that the germicidal lamp assembly is safer and more reliable to use.
In one embodiment, as shown in fig. 10, the germicidal lamp assembly further comprises: and a sealing ring 9, the sealing ring 9 being disposed between the upper housing 6 and the lower housing 7 for sealing the germicidal lamp assembly against ozone release. The seal ring 9 may be an ultraviolet-resistant seal ring or a foamed seal ring.
In one embodiment, as shown in fig. 11, the germicidal lamp in the germicidal lamp assembly may be powered by the high voltage ac power source 10, or by contact discharge of metal male and female spring pieces. Specifically, when the high-voltage ac power supply 10 is used for work, one high-voltage ac power supply 10 can be used for driving one set of germicidal lamps or simultaneously driving 1-5 sets of germicidal lamp assemblies.
Although the present invention has been described in detail with respect to the exemplary embodiments and the advantages thereof, those skilled in the art will appreciate that various changes, substitutions and alterations can be made to the embodiments without departing from the spirit and scope of the invention as defined by the appended claims. For other examples, one of ordinary skill in the art will readily appreciate that the order of the process steps may be varied while maintaining the scope of the present invention.
Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
Claims (10)
1. An excimer lamp, comprising:
the lamp tube comprises a lamp tube body, wherein an air storage cavity is arranged in the lamp tube body, two ends of the air storage cavity are sealed in a pressing mode, the air storage cavity and the outside are kept airtight, and an electrode is not installed on the lamp tube body;
the exhaust pipe is arranged on the lamp tube body and used for filling working gas into the gas storage cavity when the gas storage cavity is in a vacuum state after being sealed.
2. The excimer lamp of claim 1, wherein the working gas comprises: the gas storage cavity comprises a gas storage cavity body and a gas storage cavity body, wherein the gas storage cavity body is filled with a mixed gas of krypton and chlorine or a mixed gas of krypton and hydrogen chloride, the volume ratio of krypton to chlorine is 500: 1-20: 1, and the pressure of the mixed gas of krypton and chlorine is 10-50 Kpa; the volume ratio of the krypton to the hydrogen chloride is 500: 1-20: 1, and the pressure of the mixed gas of the krypton and the hydrogen chloride in the gas storage cavity is 10 Kpa-50 Kpa.
3. The excimer lamp according to claim 1, wherein the diameter of the lamp body is 5mm to 50mm, and the length of the air storage cavity is 20mm to 200 mm.
4. A method for preparing an excimer lamp tube is characterized by comprising the following steps:
intercepting a quartz lamp tube with a preset length, and removing hydroxyl in the intercepted lamp tube;
sealing two ends of the cut lamp tube;
the lamp tube body is connected with an exhaust pipe;
vacuumizing the lamp tube through an exhaust pipe, and filling working gas through the exhaust pipe;
the exhaust tube was closed and the lamp tube was checked for gas tightness.
5. A germicidal lamp, comprising: the excimer lamp tube is characterized by comprising a lamp tube, a first electrode and a second electrode, wherein the lamp tube adopts the excimer lamp tube in any one of claims 1 to 3, the first electrode and the second electrode are detachably arranged on the outer surface of the lamp tube, the first electrode and the second electrode are arranged side by side along the length direction of the lamp tube, the gap between the first electrode and the second electrode is 5 mm-20 mm, and an electric field generated between the first electrode and the second electrode excites working gas in the lamp tube to emit light.
6. The germicidal lamp as recited in claim 5, wherein the first electrode and/or the second electrode comprises: the electrode plate is any one of an aluminum electrode plate, an aluminum alloy electrode plate, a stainless steel electrode plate, a copper electrode plate, a ferroelectric electrode plate and a silver electrode plate, and a group of first electrodes and second electrodes are used for exciting one or more excimer germicidal lamp tubes to discharge.
7. The germicidal lamp as claimed in claim 6, wherein the lamp tube is a circular tube structure, and the electrode plate is a circular arc structure concentric with the lamp tube and having a predetermined included angle.
8. A germicidal lamp assembly, comprising:
a plurality of germicidal lamps according to any of the claims 5-7;
the shell comprises an upper shell and a lower shell, the upper shell is any one of a PEI upper shell, a PC/ABS upper shell, a PA upper shell or a ceramic upper shell, and the lower shell is any one of a PEI lower shell, a PC/ABS lower shell, a PA lower shell or a ceramic lower shell.
9. The germicidal lamp assembly as recited in claim 8 further comprising: and the band-pass filter is used for transmitting the light of the preset wave band emitted by the germicidal lamp.
10. The germicidal lamp assembly as recited in claim 8 further comprising: a sealing ring and a power supply,
the sealing ring is arranged between the upper shell and the lower shell and used for sealing the germicidal lamp assembly and preventing ozone from being released;
the power supply is used for driving a group of germicidal lamps or simultaneously driving a plurality of groups of germicidal lamp assemblies.
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| CN202110283032.7A CN112885704A (en) | 2021-03-16 | 2021-03-16 | Excimer germicidal lamp tube and preparation method thereof, germicidal lamp and assembly thereof |
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