The electromagnetic induction ultraviolet lamp that a kind of ultralow temperature moment starts
Technical field
The present invention relates to a kind of ultraviolet generating apparatus, particularly a kind of device that utilizes ultraviolet photodissociation organic exhaust gas.
Background technology
The ultraviolet ray of prior art middle-ultraviolet lamp bactericidal lamp transmitting 253.7nm wavelength destroys the DNA of biological cell, reaches the object of sterilizing. at present, ultraviolet germicidal lamp on market has three kinds, one is conventional quartz pipe straight pipe type, rely on hot cathode electron emission, the electron excitation mercury atom of motion produces ultraviolet radiation, another kind is electromagnetic induction type, rely on high-frequency electromagnetic field excitation mercury atom to produce ultraviolet radiation, also having one is microwave excitation type, rely on microwave electromagnetic field excitation mercury atom to produce ultraviolet radiation, above three kinds of form bactericidal lamps are all to rely on to excite mercury atom to produce, these three kinds different is only the means difference that obtains metastable mercury atom, above three kinds of bactericidal lamps can normally be worked under normal circumstances, but the temperature of the gas outside the winter of severe cold quartz ampoule is often lower than-30 DEG C, the tube wall of quartz ampoule is all in ultralow temperature state, Penning gas in pipe is difficult to generate Penning effect, cannot produce stable plasma discharge, be that quartz ampoule cannot be lighted. therefore, existing ultraviolet germicidal lamp is not suitable for photodissociation organic exhaust gas under ultra-low temperature surroundings.
Summary of the invention
For defect of the prior art, the object of the invention is to overcome above-mentioned weak point of the prior art, a kind of electromagnetic induction ultraviolet lamp of ultralow temperature moment startup is provided, promote Penning effect, form stable plasma discharge even if device also can be started moment under ultra-low temperature surroundings, light quartz ampoule.
The object of the present invention is achieved like this: the electromagnetic induction ultraviolet lamp that a kind of ultralow temperature moment starts, comprise the quartz ampoule that is enclosed construction, on described quartz ampoule, be provided with the amalgam pipe of opening towards quartz ampoule inner chamber, in described amalgam pipe, be provided with amalgam, described quartz ampoule is provided with at least one group of calutron outward, described calutron comprises the magnet ring being sleeved on outside quartz ampoule and installs around the induction coil on magnet ring, described induction coil is connected to the output of radio-frequency generator, on the outer tube wall of described quartz ampoule, be interval with at least one group of intensifier ring, every group of intensifier ring comprises the becket of at least one sealing being set up in parallel.
In the present invention, ultralow temperature is environment temperature-30 DEG C following temperature, when work, between the induction coil in radio-frequency generator and calutron, form high-frequency oscillating circuits, induction coil and magnet ring effect generation electromagnetic induction, make to generate an electromagnetic field in quartz ampoule, the ultraviolet ray that mercury atom in quartz ampoule is subject to stimulated emission and goes out 253.7nm, at the initial stage of induction coil work, in intensifier ring, produce induced potential, in the transition process of promotion electronics, obtain energy, under the effect of intensifier ring, pipe is interior by Ar, Kr, the Penning gas of the former sub-portfolio of Hg can form Penning effect fast, make Penning gas avalanche ionization, form stable plasma, in plasma, mercury atom is stimulated and forms the more metastable state mercury atom of high level, metastable state discharges ultraviolet ray after reverting to stable state, quartz ampoule is lighted fast, action of ultraviolet radiation is in organic exhaust gas, make to be subject to the organic exhaust gas photodissociation of illumination, the present invention can light quartz ampoule under the temperature more than-38 DEG C fast, is applicable to the processing of various ultralow temperature organic waste-gas purification.
As a further improvement on the present invention, described intensifier ring is close to quartz ampoule periphery individual pen by metal material single head or bull and is installed around and form, the opening part of metal material is welded to connect, this design can promote Penning effect, form stable plasma discharge even if device moment under ultra-low temperature surroundings is started, light quartz ampoule.
In order further to improve the reliability that intensifier ring plays a role, described intensifier ring is that 50~500mm arranges one group along the spacing distance of the outer tube wall surface direction of quartz ampoule.
In order further to improve the stability that quartz ampoule is lit, described quartz ampoule external diameter is 30~50mm.
In order further to improve the reliability that magnet ring is installed, described magnet ring forms through two semicircular arc magnetic cores, and the periphery of the magnetic core of two semicircular arcs is provided with embraces folder.
In order further to improve diversity of the present invention, the described quartz ampoule rectangular ring-type of entirety or circular ring-type, this scheme is easily manufactured, good looking appearance.
In order further to improve germicidal efficiency of the present invention, described calutron is outside equipped with two groups or more at quartz ampoule, and corresponding induction coil is in parallel or be connected in series, and this scheme helps improve the power of single light fixture in addition.
As a further improvement on the present invention, described calutron is encapsulated in seal protection body, and in the time that the present invention is used for wet environment, this scheme can be guaranteed the insulating properties of calutron, ensures the normal work of calutron.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the second structural representation of the present invention.
Fig. 3 is another kind of structural representation of the present invention.
Wherein, 1 quartz ampoule, 2 radio-frequency generators, 3 armfuls of folders, 4 amalgam pipes, 5 amalgam, 6 magnet rings, 7 induction coils, 8 seal protection bodies, 9 intensifier rings.
Detailed description of the invention
Embodiment 1
As shown in Figure 1 be power 300W ultralow temperature moment start electromagnetic induction ultraviolet lamp, comprise the quartz ampoule 1 that is enclosed construction, the overall rectangular ring-type of quartz ampoule 1, on quartz ampoule 1, be provided with the amalgam pipe 4 of opening towards quartz ampoule 1 inner chamber, in amalgam pipe 4, be provided with amalgam 5, quartz ampoule 1 external symmetry is provided with two groups of calutrons, calutron is encapsulated in seal protection body 8, calutron comprises the magnet ring 6 being sleeved on outside quartz ampoule 1 and installs around the induction coil 7 on magnet ring 6, magnet ring 6 is made up of two semicircular arc magnetic cores, the periphery of two semicircular arc magnetic cores is provided with embraces folder 3, two groups of induction coils 7 are connected in the output of radio-frequency generator 2 in parallel, outside quartz ampoule 1, be provided with four groups of intensifier rings 9, every group of intensifier ring 9 comprises the becket of a sealing, becket can be by copper, silver, aluminium, the metal materials such as steel are made, intensifier ring 9 is close to quartz ampoule 1 periphery individual pen by metal material joint or bull and is installed around and form, the opening part of metal material is welded to connect, in width and short transverse, intensifier ring 9 is all symmetrical arranged taking quartz ampoule 1 central axis as datum line, every group of intensifier ring 9 is 250mm along the spacing distance of the outer tube wall surface direction of quartz ampoule 1, wherein, intensifier ring 9 can arbitrarily be chosen along the spacing distance of the outer tube wall surface direction of quartz ampoule 1 within the scope of 50~500mm.
When the present invention works, between the induction coil 7 in radio-frequency generator 2 and calutron, form high-frequency oscillating circuits, there is electromagnetic induction in induction coil 7 and magnet ring 6 effects, make to generate an electromagnetic field in quartz ampoule 1, the ultraviolet ray that mercury atom in quartz ampoule 1 is subject to stimulated emission and goes out 253.7nm, the initial stage of working at induction coil 7, in intensifier ring 9, produce induced potential, in the transition process of promotion electronics, obtain energy, under the effect of intensifier ring 9, pipe is interior by Ar, Kr, the Penning gas of the former sub-portfolio of Hg can form Penning effect fast, make Penning gas avalanche ionization, form stable plasma, in plasma, mercury atom is stimulated and forms the more metastable state mercury atom of high level, metastable state discharges ultraviolet ray after reverting to stable state, quartz ampoule 1 is lighted fast, action of ultraviolet radiation is in organic exhaust gas, make to be subject to the organic exhaust gas photodissociation of illumination, the present invention can light quartz ampoule 1 under the temperature more than-38 DEG C fast, is applicable to the processing of various ultralow temperature organic waste-gas purification.
Embodiment 2
As shown in Figure 2 be power 400W ultralow temperature moment start electromagnetic induction ultraviolet lamp, be with the difference of embodiment 1, the external diameter of quartz ampoule 1 is 30mm, every group of intensifier ring 9 comprises four beckets that are set up in parallel, and every group of intensifier ring 9 is 50mm along the spacing distance of the outer tube wall surface direction of quartz ampoule 1.
Embodiment 3
As shown in Figure 3 be power 200W ultralow temperature moment start electromagnetic induction ultraviolet lamp, difference from Example 1 is, quartz ampoule 1 entirety is circular, the external diameter of quartz ampoule 2 is 50mm, calutrons etc. are arranged with three groups, three groups of induction coils 7 are connected in series in the output of radio-frequency generator 2, intensifier ring 9 does not wait and is arranged with three groups, every group of intensifier ring 9 comprises two beckets that are set up in parallel, the one group intensifier ring 9 nearest with calutron is respectively 100mm and 500mm with other two groups of intensifier rings 9 along the spacing distance of quartz ampoule 1 outer tube wall surface direction.
Although the intensifier ring 9 in this device is applied in electromagnetic induction ultraviolet lamp, there is low temperature and accelerate the characteristic starting, the straight tube ultraviolet lamp for two ends with filament, also should have the effect of started quickly at low temperature.
The present invention is not limited to above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present invention.