CN215869290U - Light plasma lamp tube - Google Patents

Abstract

A kind of light plasma lamp tube, including the lamp tube body, stretch into the electrode set up in the lamp tube body end, lamp holder and lamp base set up in one of them lamp holder outer end that both ends of lamp tube body encapsulate, the said lamp base is connected electrically with electrode, the said lamp tube body is formed by one section of lamp tube that permeates 185nm wavelength and one section of lamp tube that permeates 254nm wavelength through the welding, the said lamp tube body is packed with mercury and rare gas, only need to install one set of lamps and lanterns can form two kinds of ultraviolet rays of different wavelength and sterilize, wherein one section of lamp tube sends 185nm wavelength ultraviolet ray and decomposes the air and produce the ozone sterilization and disinfection, another section of lamp tube sends 254nm wavelength ultraviolet ray and sterilizes directly, can decompose the residual ozone at the same time, has saved the cost of sterilization and disinfection, easy to use, have reflected the principle of energy-concerving and environment-protective too.

Description

Light plasma lamp tube

Technical Field

The utility model belongs to the technical field of lamp tubes, and particularly relates to a light plasma lamp tube.

Background

A photo plasma is a gas containing ions and free electrons generated by ultraviolet light. The main two luminous spectral lines are: one is 254nm wavelength; the other is 185nm wavelength, both of which are ultraviolet light invisible to the naked eye. The 185nm ultraviolet ray can change oxygen in the air into ozone, the ozone has strong oxidation effect, can effectively kill bacteria, and can make up the defect that the ultraviolet ray only propagates along a straight line and has dead angles in disinfection. Ultraviolet rays with the wavelength of 254nm can kill bacteria by irradiating DNA of microorganisms, the ultraviolet rays with the wavelength of 250nm-260m can play a good role in sterilization, and chromosomes of the ultraviolet rays can be damaged in the wavelength range. Therefore, it is a commonly used means to decompose air by ultraviolet rays to generate ozone for indoor sterilization and disinfection, and to generate ultraviolet rays by lamps for indoor direct sterilization and disinfection. Generally, the indoor sterilization and disinfection by decomposing air with ultraviolet rays to generate ozone and the indoor direct sterilization and disinfection by ultraviolet rays are respectively carried out by two lamps, one of which emits 185nm wavelength ultraviolet rays to decompose air to generate ozone sterilization and the other emits 254nm wavelength ultraviolet rays to sterilize and disinfect. For a user, ultraviolet rays and ozone are used for simultaneously sterilizing and disinfecting the indoor space, two sets of lamps need to be prepared to finish the work, the use is inconvenient, and the energy-saving principle is not embodied.

SUMMERY OF THE UTILITY MODEL

In order to overcome the disadvantages of the prior art, the present invention provides a photo plasma lamp capable of simultaneously emitting ultraviolet rays with 185nm wavelength and 254nm wavelength.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a kind of light plasma lamp tube, including the lamp tube body, stretch into the electrode set up in the end of lamp tube body, lamp holder that both ends of lamp tube body encapsulate and set up in the lamp base of the outer end of one of them lamp holders, the said lamp base is connected electrically with electrode, the said lamp tube body is formed by a section of lamp tube that transmits 185nm wavelength and a section of lamp tube that transmits 254nm wavelength through the welding, the said lamp tube body is packed with mercury and rare gas; the pressure of mercury vapor filled in the lamp tube main body is in the range of 7-11 Pa; the wall thickness of the lamp tube main body is within the range of 0.5-2 mm; the outer diameter of the lamp tube main body is within a range of 14-30 mm, and the corresponding current density led into the lamp tube is 0.4-2.0A/cm; the inner wall of the lamp tube body is coated with a layer of silicon oxide film, and the thickness of the silicon oxide film is within the range of 6-12 mu m.

In the utility model, the electrodes comprise a first electrode and a second electrode, the first electrode and the second electrode are respectively fixed on the two lamp heads, two pairs of lamp pins are arranged, and the two pairs of lamp pins are respectively and correspondingly electrically connected with the first electrode and the second electrode.

In the utility model, the lamp tube body is a quartz glass tube.

In the utility model, the ratio of the length of the lamp tube transmitting 185nm wavelength to the length of the lamp tube transmitting 254nm wavelength in the lamp tube main body is 0.5-2.

The utility model has the beneficial effects that: the light plasma lamp tube can be used for sterilizing and disinfecting by forming two ultraviolet rays with different wavelengths only by installing one set of lamp, wherein one lamp tube emits 185nm ultraviolet rays to decompose air to generate ozone for sterilization and disinfection, the other lamp tube emits 254nm ultraviolet rays to directly sterilize and disinfect, and meanwhile residual ozone can be decomposed, so that the cost of sterilization and disinfection is saved, the use is convenient, and the principles of energy conservation and environmental protection are reflected.

Drawings

The utility model is further illustrated by the following figures and embodiments:

FIG. 1 is a schematic diagram of the entire structure of the present embodiment when the lengths of the lamp transmitting 185nm wavelength light and the lamp transmitting 254nm wavelength light are equal;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of the entire structure of the present embodiment when the lamp tube transmitting 185nm wavelength is longer than the lamp tube transmitting 254nm wavelength;

FIG. 4 is a schematic diagram of the entire structure of the lamp of this embodiment when the wavelength of light transmitted through the lamp with 185nm wavelength is shorter than that of light transmitted through the lamp with 254nm wavelength;

fig. 5 is a schematic structural diagram illustrating two pairs of lamp pins respectively disposed on two lamp caps to form a dual-end structure according to the present embodiment;

fig. 6 is a right side view of fig. 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Example (b):

as shown in fig. 1 to 6, the present embodiment discloses a light plasma lamp, which includes a lamp body 1, an electrode extending into the end of the lamp body 1, lamp caps 4 sealed at both ends of the lamp body 1, and a lamp pin 5 disposed at the outer end of one of the lamp caps 4, wherein the lamp pin 5 is electrically connected to the electrode, the lamp body 1 is formed by welding a section of a lamp tube 11 transmitting 185nm wavelength and a section of a lamp tube 12 transmitting 254nm wavelength, the lamp body 1 is filled with mercury and rare gas, and naturally, in the actual manufacturing process, the lamp tube 11 transmitting 185nm wavelength can be properly widened to a lamp tube transmitting 180-190 nm wavelength; the tube 12 transmitting 254nm wavelength can be properly widened to transmit 250-260 nm wavelength tube, so as to achieve the technical effect of the present invention. In the present embodiment, the lamp body 1 is a quartz glass tube, and when the quartz glass tube is manufactured and molded, the lamp 11 which selectively transmits 185nm wavelength is obtained by adding 2.3% of titanium element, and the lamp 12 which selectively transmits 254nm wavelength is obtained by adding 2.7% of titanium element, although the lamp 11 which transmits 185nm wavelength and a section of the lamp 12 which transmits 254nm wavelength can be obtained by other various methods. The light plasma lamp tube can be used for sterilizing and disinfecting by forming two ultraviolet rays with different wavelengths only by installing one set of lamp, wherein one lamp tube emits 185nm ultraviolet rays to decompose air to generate ozone for sterilization and disinfection, the other lamp tube emits 254nm ultraviolet rays to directly sterilize and disinfect, and meanwhile residual ozone can be decomposed, so that the cost of sterilization and disinfection is greatly saved, the use is convenient, and the principles of energy conservation and environmental protection are reflected. In a small and medium-sized enclosed space with high utilization rate and high pollution or odor, the portable multifunctional plasma air cleaner is fast and efficient, and is convenient and flexible to carry.

The product utilizes ultraviolet rays to directly decompose organic chemical substances and biological pollutants, excites air molecules in the conventional air convection to a high-energy state, namely plasma, the plasma is released into a space, the decomposition of the organic pollutants is continuously accelerated, the plasma is naturally reduced, no chemical substances are used, and no residual pollutants are left in a working space.

In this embodiment, the electrodes include a first electrode 2 and a second electrode 3, the first electrode 2 and the second electrode 3 are respectively fixed on two lamp caps 4, two pairs of lamp pins 5 are provided, and the two pairs of lamp pins 5 are respectively and correspondingly electrically connected to the first electrode 2 and the second electrode 3. In the present embodiment, two pairs of lamp pins 5 may be simultaneously disposed on one of the lamp bases 4 to form a single-ended structure; it is also possible to provide two bases 4 with a double-ended structure. The ratio of the length of the lamp tube 11 transmitting 185nm wavelength to the length of the lamp tube 12 transmitting 254nm wavelength in the lamp tube body 1 is 0.5-2. The relationship between the length of the lamp tube 11 which transmits 185nm wavelength light and the length of the lamp tube 12 which transmits 254nm wavelength light in the lamp tube main body 1 can be freely set according to the use requirement, when a user needs to emit more ultraviolet light with 185nm wavelength to decompose air to generate ozone sterilization, the ratio between the length of the lamp tube 11 which transmits 185nm wavelength light and the length of the lamp tube 12 which transmits 254nm wavelength light in the lamp tube main body 1 is 1-2; when the user needs the same sterilization and disinfection function, the length of the lamp tube 11 which transmits 185nm wavelength in the lamp tube main body 1 is equal to the length of the lamp tube 12 which transmits 254nm wavelength; when the user needs to directly sterilize and disinfect by emitting 254nm ultraviolet rays, the ratio of the length of the lamp tube 11 transmitting 185nm wavelength to the length of the lamp tube 12 transmitting 254nm wavelength in the lamp tube body 1 is 0.5-1.

In a preferred embodiment, in order to ensure the radiation efficiency of the optical plasma lamp, the mercury vapor pressure filled in the lamp body 1 is set within the range of 7-11 Pa, if the mercury vapor pressure is larger than 11Pa, the increase of mercury atoms can shorten the effective free path of photons and increase the confinement effect of resonance radiation, thereby reducing the ultraviolet radiation efficiency, and if the mercury vapor pressure is smaller than 7Pa, the density of the excited mercury atoms is reduced, thereby reducing the ultraviolet radiation efficiency. The mercury source can be liquid mercury or amalgam, the amalgam with special design is adopted, compared with liquid mercury, the amalgam has stronger capability of controlling the mercury vapor pressure to be stabilized near the optimal value required by the operation of the light plasma lamp tube, and when the light plasma lamp tube operates under the conditions that the environmental temperature changes to exceed 40 ℃, 50 ℃ and 60 ℃, the mercury vapor pressure of the light plasma lamp tube can still be kept within the range of 7-11 Pa, thereby ensuring that the light plasma lamp tube still has higher ultraviolet radiation efficiency under the condition of wide-temperature environment.

In a preferred embodiment, the thickness of the tube body 1 is in the range of 0.5 to 2mm in order to provide the tube body 1 with excellent transmittance. If the wall thickness is too thick, the ultraviolet transmittance of the lamp tube is reduced due to the absorption of the lamp tube, which affects the ultraviolet conversion efficiency of the lamp tube. If the wall thickness is too thin, the intensity of the lamp tube is not enough, and the electron temperature in the discharge positive column area in the lamp tube is easily reduced by the influence of the environment, thereby reducing the ultraviolet conversion efficiency of the lamp tube. Meanwhile, in order to further improve the transmission performance of the light plasma lamp tube and reduce light attenuation, the inner wall of the lamp tube main body 1 is coated with a layer of silicon oxide film, the thickness of the silicon oxide film is within the range of 6-12 microns, the film is compact and uniform, alkaline earth metal impurities can be isolated from being contacted with mercury, and the light attenuation of the lamp is reduced, so that the ultraviolet output of the lamp tube in the service life is relatively improved, and the maintenance rate of the ultraviolet output in the service life is improved. Since the coating material is an oxide, it inevitably absorbs ultraviolet radiation, and therefore, a silicon oxide thin film is selected because of its high transmittance to ultraviolet rays.

As a preferred embodiment, the diameter of the lamp tube body 1 and the current density of the lamp tube are selected correspondingly, if the current density exceeds the maximum current density corresponding to the tube diameter, the heat power is increased along with the increase of the lamp power, so that the temperature of the cold end of the lamp is too high and exceeds the upper limit of an optimal temperature area, and the ultraviolet radiation efficiency is reduced. If the current density is lower than the minimum current density corresponding to the pipe diameter, the temperature of the cold end is too low and lower than the lower limit of the optimal temperature area, so that the ultraviolet radiation efficiency is reduced. Therefore, the outer diameter of the lamp body 1 is in the range of 14-30 mm, and the corresponding current density flowing into the lamp is in the range of 0.4-2.0A/cm. The optimal matching of the outer diameter of the lamp tube main body 1 and the current density of the lamp tube is as follows: every time the outer diameter of the lamp tube body 1 is increased by 1mm, the corresponding current density led into the lamp tube is increased by 0.1A/cm, and a positive correlation proportional relation is formed.

The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by substantially the same means are within the protection scope of the present invention.

Claims (4)

1. A light plasma lamp, characterized in that: the lamp tube comprises a lamp tube body (1), electrodes extending into the end part of the lamp tube body (1), lamp caps (4) packaged at two ends of the lamp tube body (1) and lamp pins (5) arranged at the outer end part of one of the lamp caps (4), wherein the lamp pins (5) are electrically connected with the electrodes, the lamp tube body (1) is formed by welding one section of a lamp tube (11) transmitting 185nm wavelength and one section of a lamp tube (12) transmitting 254nm wavelength, and mercury and rare gas are filled in the lamp tube body (1); the pressure of mercury vapor filled in the lamp tube main body (1) is within the range of 7-11 Pa; the wall thickness of the lamp tube main body (1) is within the range of 0.5-2 mm; the outer diameter of the lamp tube main body (1) is within the range of 14-30 mm, and the current density led into the lamp tube is 0.4-2.0A/cm correspondingly; the inner wall of the lamp tube body (1) is coated with a layer of silicon oxide film, and the thickness of the silicon oxide film is within the range of 6-12 mu m.

2. A light plasma lamp tube as claimed in claim 1, wherein: the lamp comprises two pairs of lamp feet (5), wherein the two pairs of lamp feet (5) are respectively and correspondingly electrically connected with the first electrode (2) and the second electrode (3).

3. A light plasma lamp tube as claimed in claim 1, wherein: the lamp tube main body (1) is a quartz glass tube.

4. A light plasma lamp tube as claimed in claim 1, wherein: the ratio of the length of a lamp tube (11) transmitting 185nm wavelength to the length of a lamp tube (12) transmitting 254nm wavelength in the lamp tube main body (1) is 0.5-2.

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