CN104952687A - Ultraviolet irradiation device and analyzer provided with the same - Google Patents
Ultraviolet irradiation device and analyzer provided with the same Download PDFInfo
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- CN104952687A CN104952687A CN201510102515.7A CN201510102515A CN104952687A CN 104952687 A CN104952687 A CN 104952687A CN 201510102515 A CN201510102515 A CN 201510102515A CN 104952687 A CN104952687 A CN 104952687A
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- ultraviolet lamp
- reactive tank
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Abstract
The invention provides an ultraviolet irradiation device and an analyzer provided with the same, the ultraviolet irradiation device causes no bad influence on analysis, and a light emitting tube cannot be influenced by alkaline atmosphere. A first protective film (731) is formed on the outside surface of a light emitting tube (71) made from quartz material, so the light emitting tube (71) cannot be influenced by alkaline atmosphere. The first protective film (731) can be used for preventing quartz material from subjecting to chemical reaction in alkaline atmosphere, the quartz material can be prevented from eluting, so the light emitting tube (71) cannot be influenced by alkaline atmosphere. In addition, the first protective film (731) is formed on the outside surface of the light emitting tube (71), gaps can be prevented from generating between the outside surface of the light emitting tube (71) and the first protective film (731). No water sample between the outside surface of the light emitting tube and the first protective film can sneak into the next water sample to be analyzed, so bad influence on analysis caused by such water sample can be prevented.
Description
Technical field
The present invention relates to a kind of ultraviolet lamp used in alkaline atmosphere and the analytical equipment with this ultraviolet lamp.
Background technology
In the analytical equipments such as total nitrogen total phosphorus analyzer, such as, can be oxidized by making water sample irradiation ultraviolet radiation the composition in water sample, being measured (patent documentation 1 for example, referring to following) by the concentration of determination part to oxidized composition.Ultraviolet is irradiated to water sample from ultraviolet lamps such as Cooper-Hewitt lamps.Be provided with the luminous tube formed by such as quartz glass in ultraviolet lamp, the ultraviolet produced in the inside of luminous tube is irradiated to outside through this luminous tube.
Among this kind of analytical equipment, have externally to the analytical equipment of the such structure of the reactive tank irradiation ultraviolet radiation that have accumulated water sample and in impregnated in luminous tube in reactive tank water sample with the analytical equipment of the such structure of direct irradiation ultraviolet.Adopt the structure in the water sample that to be impregnated in by luminous tube in analytical equipment reactive tank, the oxidation efficiency of the composition in water sample can be improved, but directly contact with water sample due to luminous tube, so the problems such as luminous tube is deteriorated may be produced.
Such as, when the reagents such as NaOH are mixed in water sample, because luminous tube is impregnated in the water sample of alkalescence, therefore exist due to the chemical reaction shown in following reaction equation, and the problem that the quartz glass wash-out forming luminous tube is such.
SiO
2+2NaOH→Na
2SiO
3+H
20
Therefore, sometimes also there is the situation being implemented as follows countermeasure, namely by resinous sleeve pipe being coated on the outer surface of luminous tube, protection quartz glass is with the water sample avoiding it to touch alkalescence.In this case, such as can it be made to soften by heating muff, after the tip side press-in from luminous tube, make it solidify, thus sleeve pipe is coated on the outer surface of luminous tube.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2002-107352 publication
Summary of the invention
The problem that invention will solve
But, when resinous sleeve pipe being coated on the outer surface of luminous tube with form as described above, gap may be produced between sleeve pipe and the outer surface of luminous tube.When water sample enters such gap, this water sample can be mixed in water sample when next time analyzing, and becomes the reason of evaluated error, is not therefore very desirable.Again, the water sample being mixed into the gap of the outer surface of sleeve pipe and luminous tube arrives the root of luminous tube, and the electric component in luminous tube may be made to produce unfavorable condition.
Further, the ultraviolet produced from the inside of luminous tube makes the deterioration of resinous sleeve pipe sometimes, produces be full of cracks.In this case, water sample enters in produced be full of cracks, and this water sample is mixed in water sample when next time analyzing, and therefore not only becomes the reason of evaluated error, but also the foreign matter that existence and be full of cracks produce simultaneously is to measuring the possibility causing bad influence.
Be not only such formation in the water sample be immersed in by luminous tube in reactive tank to need to protect luminous tube, when using ultraviolet lamp in such as containing the air of ammonia, also need to avoid luminous tube to be subject to the impact of alkaline atmosphere.Under these circumstances, if adopt the formation using resinous casing protection luminous tube such, there is the ultraviolet produced from the inside of luminous tube and cause sleeve pipe deterioration, to measuring the possibility causing bad influence.
The present invention makes just in view of the foregoing, and its object is to provide a kind of can not cause bad influence to measuring and luminous tube can be avoided to be subject to the ultraviolet lamp of alkaline atmosphere impact and to have the analytical equipment of this ultraviolet lamp.
For the means of dealing with problems
Ultraviolet lamp involved in the present invention, it is that it comprises by the ultraviolet lamp used in alkaline atmosphere: luminous tube, and described luminous tube is formed by quartz material, sends ultraviolet light from inside; And the 1st diaphragm, described 1st diaphragm, by the outer surface of film forming in described luminous tube, avoids described luminous tube to be subject to the impact of alkaline atmosphere.
According to such structure, the luminous tube formed by quartz material can be avoided to be subject to the impact of alkaline atmosphere in the 1st diaphragm of the outer surface of this luminous tube by film forming.That is, by the 1st diaphragm prevention for the chemical reaction of the quartz material of alkaline atmosphere, quartz material wash-out can be prevented.
Especially, owing to making the 1st diaphragm film forming in the outer surface of luminous tube, so can prevent from producing gap between the outer surface and the 1st diaphragm of luminous tube.Therefore, the water sample that can not there is the gap between outer surface and the 1st diaphragm entering into luminous tube is mixed into the situation of water sample when next time analyzing, and can prevent being mixed into of such water sample from causing bad influence to mensuration.Again, if with the formation that can form the 1st diaphragm through ultraviolet material, even if then form the 1st diaphragm at the wide region of the outer surface of luminous tube, also bad influence can not be caused to mensuration.Therefore, luminous tube can not be avoided to be subject to the impact of alkaline atmosphere with causing bad influence on mensuration.
Described 1st diaphragm can be formed by the material comprising diamond-like-carbon.
According to such structure, ultra-violet resistance and the high diamond-like-carbon of alkali resistance can be adopted to form the 1st diaphragm at the outer surface of luminous tube.Thus, effectively can prevent the 1st diaphragm deterioration, the water sample of the be full of cracks owing to entering into the 1st diaphragm therefore can be prevented to be mixed into water sample when next time analyzing and to cause bad influence to mensuration.
Described 1st diaphragm can be formed by the material comprising inorganic metal or inorganic metal compound.
According to such structure, luminous tube can be protected by adopting inorganic metal or inorganic metal compound film forming in the 1st diaphragm of the outer surface of luminous tube.If adopt ultra-violet resistance and the high inorganic metal of alkali resistance or inorganic metal compound to form the 1st diaphragm; effectively can prevent the 1st diaphragm deterioration, the water sample of the be full of cracks owing to entering into the 1st diaphragm therefore can be prevented to be mixed into water sample when next time analyzing and to cause bad influence to mensuration.
Described ultraviolet lamp can also comprise the 2nd diaphragm, and described 2nd diaphragm is formed at the outer surface of described 1st diaphragm, is made up of the material different from described 1st diaphragm.
According to such structure, luminous tube can be protected by the 1st stacked diaphragm and the 2nd diaphragm.If the material adopting such as alkali resistance higher than the 1st diaphragm forms the 2nd diaphragm, the deterioration of the 1st diaphragm that can prevent alkaline atmosphere from causing, more effectively protects luminous tube.Again, if form the 1st diaphragm with the material that ultra-violet resistance is higher than the 2nd diaphragm, can prevent from, by the deterioration of UV-induced 2nd diaphragm, more effectively protecting luminous tube.
Described 2nd diaphragm also can be formed by the resiniferous material of bag.
According to such structure, by adopting the resin that hydrophobicity is high to form the 2nd diaphragm, the 1st diaphragm is effectively avoided to be subject to the impact of alkaline atmosphere.Such as when forming the 1st diaphragm by evaporation; although water sample enters between the tiny particle on the surface of the 1st diaphragm; the 1st diaphragm deterioration may be made; if but adopted resin to form the 2nd diaphragm on the 1st diaphragm, just could effectively avoid the 1st diaphragm to be subject to the impact of alkaline atmosphere.Again, the ultra-violet resistance of resin is low, if but adopt the high material of ultra-violet resistance to form the 1st diaphragm, just can effectively avoid the 2nd diaphragm adopting resin to be formed to be subject to ultraviolet impact.
Again, described 1st diaphragm also can be formed by the resiniferous material of bag.
According to such structure, by adopting resin film forming in the 1st diaphragm of the outer surface of luminous tube, can protect luminous tube.If the resin adopting the alkali resistances such as such as fluororesin high forms the 1st diaphragm; then effectively can prevent the 1st diaphragm deterioration, the water sample of the be full of cracks owing to entering into the 1st diaphragm therefore can be prevented to be mixed into water sample when next time analyzing and to cause bad influence to mensuration.
Analytical equipment involved in the present invention comprises: the determination part that described ultraviolet lamp, accumulation have the reactive tank of water sample and measure the composition of water sample oxidized in described reactive tank.Described luminous tube is submerged in the water sample in described reactive tank.
According to such structure, the luminous tube be submerged in the water sample in reactive tank can be avoided to be subject to the impact of water sample.Even if when such as reagent be mixed in water sample cause water sample to become alkalescence, by by 1st diaphragm of film forming in the outer surface of luminous tube, luminous tube also can be avoided to be subject to the impact of the water sample of alkalescence.
Described 1st diaphragm also can be formed in the position corresponding with the water level of the water sample in described reactive tank.
According to such structure, can at the guarded by location luminous tube corresponding with the water level of water sample.Because the luminous tube of the water sample being impregnated in alkalescence is especially easy at the position wash-out corresponding with the water level of water sample, so by forming the 1st diaphragm in the position corresponding with this water level, luminous tube can be effectively avoided to be subject to the impact of the water sample of alkalescence.Again, by only forming the 1st diaphragm in the position corresponding with the water level of water sample, the fee of material of the 1st diaphragm can be suppressed, therefore can reduce manufacturing cost.
The effect of invention
According to the present invention, the chemical reaction of the quartz material for alkaline atmosphere can be stoped by the 1st diaphragm, prevent quartz material wash-out, luminous tube therefore can be avoided to be subject to the impact of alkaline atmosphere.Again; according to the present invention; owing to can prevent producing gap between the outer surface and the 1st diaphragm of luminous tube; the water sample that can not there is the gap between outer surface and the 1st diaphragm entering into luminous tube is mixed into the situation of water sample when next time analyzing, therefore, it is possible to prevent being mixed into of such water sample from causing bad influence to mensuration.
Accompanying drawing explanation
Fig. 1 is the skeleton diagram of the configuration example of the analytical equipment illustrated involved by an example of the present invention.
Fig. 2 is the summary sectional view of ultraviolet lamp.
Embodiment
Fig. 1 is the skeleton diagram of the configuration example of the analytical equipment illustrated involved by an example of the present invention.Analytical equipment involved by this example to measure the total nitrogen concentration (TN concentration) of water sample and the total nitrogen total phosphorus analyzer of total phosphorus concentration (TP concentration), and its part formed only is shown in FIG.
Water sample is sewage, river or plant drainage etc., comprises the various composition such as nitrogen compound, phosphorus compound.Nitrogen compound in water sample exists as such as nitrate ion, nitrite ion, ammonium ion and organic nitrogen.When measuring the total nitrogen concentration of water sample, being making after all nitrogen compounds in water sample are oxidized to nitrate ion, then its concentration is measured.
Again, the phosphorus compound in water sample exists as such as phosphate anion, hydrolyzable phosphorus and organic phosphorus.When measuring the total phosphorus concentration in water sample, being making after all phosphorus compounds in water sample are oxidized to phosphate anion, then measuring its concentration.
In analytical equipment involved by this example, there are such as stream switching part 1, syringe 2, water sample supply unit 3, reagent supply unit 4, reactive tank 5, heater 6, ultraviolet lamp 7, determination part 8 and control part 9 etc.Stream switching part 1 is such as made up of the multiported valve with multiple port, can optionally be communicated with the some of other ports relative to a common port.Connected state between each port of stream switching part 1 automatically can be switched by the driving of such as motor Ml.
Syringe 2 has such as cylindrical shell 21 and plunger 22.By making plunger 22 displacement be inserted in cylindrical shell 21, can carry out to the attraction action of syringe 2 and the discharging operation from syringe 2.Plunger 22 automatically can carry out displacement by the driving of such as motor M2.
In this example embodiment, the common port of stream switching part 1 is connected with syringe 2.Water sample supply unit 3, reagent supply unit 4, reactive tank 5 and determination part 8 etc. are connected to other multiple ports of stream switching part 1.Therefore, by making plunger 22 displacement under the state making syringe 2 and water sample supply unit 3 be communicated with, carrying out the attraction action to syringe 2, water sample can be supplied to (in cylindrical shell 21) in syringe 2.After this, if make syringe 2 and reagent supply unit 4 be communicated with and make plunger 22 displacement, carry out the attraction action to syringe 2, reagent can be supplied in syringe 2, this reagent is mixed in water sample.
Water sample in syringe 2, after suitably being with the addition of oxidant etc., is supplied in reactive tank 5.Specifically, be communicated with by making syringe 2 and reactive tank 5 and make plunger 22 displacement, carrying out the discharging operation from syringe 2, the water sample in syringe 2 can be supplied in reactive tank 5.Now, by controlling the displacement of plunger 22, can the quantity delivered of water sample of subtend reactive tank 5 adjust.
In reactive tank 5, accumulation has the water sample supplied from syringe 2.At the arranged outside having heaters 6 of reactive tank 5, can be heated by the water sample in this heater 6 pairs of reactive tanks 5.Ultraviolet lamp 7 is inserted in reactive tank 5, by the water sample irradiation ultraviolet radiation be accumulated in reactive tank 5, makes the various composition oxidation such as the nitrogen compound in water sample, phosphorus compound.
Water sample in reactive tank 5 is fed to determination part 8 by syringe 2.Specifically, be communicated with by making syringe 2 and reactive tank 5 and make plunger 22 displacement, carrying out the attraction action to syringe 2, the water sample in reactive tank 5 is imported in syringe 2.After this, be communicated with by making syringe 2 and determination part 8 and make plunger 22 displacement, carrying out the discharging operation from syringe 2, the water sample in syringe 2 can be guided to determination part 8.
Thus, the composition of oxidized in reactive tank 5 water sample is measured by determination part 8.In determination part 8, such as, by detecting the transmitted light of the light irradiating water sample, measure absorbance.Based on the absorbance be measured to like this, the concentration of the composition in the water sample such as total nitrogen concentration, total phosphorus concentration can be calculated.
Control part 9 is such as the formation comprising CPU (CPU), the action in each portion of the analytical equipments such as motor Ml, M2, heater 6 and ultraviolet lamp 7 is controlled, and carries out the process based on the detection signal from determination part 8.Computing based on the concentration of the absorbance be measured to by determination part 8 is carried out in control part 9, is shown in display part (not shown) by the concentration calculated.
Fig. 2 is the summary sectional view of ultraviolet lamp 7.This ultraviolet lamp 7 has the luminous tube 71 formed by such as quartz glass, under the state that this luminous tube 71 is impregnated in the water sample in reactive tank 5, use this ultraviolet lamp 7.Luminous tube 71 is such as the slender tube body extended in a linearity, sends ultraviolet from inside.
Luminous tube 71 is impregnated in water sample with the form extended in the vertical direction from its top ends 711, and root 712 is positioned at the top of the water level L of water sample.In luminous tube 71, be provided with the spaced walls 713 such as extended along its length, form the inner space 714 of U-shaped thus.At the root 712 of luminous tube 71, the position that the both ends of the inner space 714 with U-shaped are corresponding is respectively arranged with electrode 72.
Ultraviolet lamp 7 in this example is such as Cooper-Hewitt lamp, and mercury is enclosed in inner space 714.When analyzing, by applying voltage between pair of electrodes 72, in the mercury vapor of inner space 714, producing arc discharge, send ultraviolet light thereupon.
Such as when the reagents such as NaOH are mixed to water sample from reagent supply unit 4, the water sample be accumulated in reactive tank 5 becomes alkalescence.Under these circumstances, ultraviolet lamp 7 is used in alkaline atmosphere (in this example embodiment, for being submerged in the state in the water sample of alkalescence).
Be formed with diaphragm 73 at the outer surface of luminous tube 71, this diaphragm 73 protects luminous tube 71 to be in alkaline atmosphere to avoid it.In order to protect luminous tube 71 to be in alkaline atmosphere to avoid it, diaphragm 73 is by not reacting with alkali or being formed with the material that alkali is difficult to react.In this example, the 1st diaphragm 731 is by the outer surface of film forming in luminous tube 71, and the 2nd diaphragm 732 is by the outer surface of film forming in the 1st diaphragm 731.
Like this, diaphragm 73 is preferably laminated with the structure of the multiple films be made up of different materials, is not limited thereto, such as, can be the structure be only made up of the 1st diaphragm 731.In addition, in fig. 2, in order to make explanation easy to understand, the thickness of the 1st diaphragm 731 and the 2nd diaphragm 732 is represented larger than actual thickness.
1st diaphragm 731 is such as formed by diamond-like-carbon (DLC).Diamond-like-carbon is the amorphous hard carbon film formed primarily of the allotrope of hydrocarbon or carbon, has ultra-violet resistance and the high character of alkali resistance.1st diaphragm 731 can be formed in the outer surface of luminous tube 71 by making diamond-like-carbon evaporation.Adopt diamond-like-carbon and the thickness of the 1st diaphragm 731 that formed is preferably more than 0.01 μm, be more preferably more than 1 μm.
When forming the 1st diaphragm 731 by evaporation, such as physical vapor deposition (PVD method) can be adopted.The various vapour deposition methods such as vacuum vapour deposition, ion plating and sputtering method are comprised in physical vapor deposition.But, be not limited to physical vapor deposition, also can form the 1st diaphragm 731 by chemical vapor deposition method (CVD), also can form the 1st diaphragm 731 by the method beyond evaporation.
Like this, in this example, film forming can be adopted to be in alkaline atmosphere to protect luminous tube 71 to avoid it in the 1st diaphragm 731 of the outer surface of the luminous tube 71 formed by quartz glass.That is, the 1st diaphragm 731 can be adopted to stop the chemical reaction of the quartz glass relative to alkaline atmosphere, prevent quartz glass wash-out.
In this example embodiment, the luminous tube 71 in the water sample be submerged in reactive tank 5 can be protected to avoid its contact water sample.Even if such as NaOH is being mixed to water sample as reagent from reagent supply unit 4; when causing water sample to become alkalescence; also chemical reaction such shown in following reaction equation can be stoped to occur thus cause quartz glass wash-out by the 1st diaphragm 731, luminous tube 71 can be protected to avoid the water sample of its contact alkalescence.
SiO
2+2NaOH→Na
2SiO
3+H
20
Especially, owing to making the 1st diaphragm 731 film forming in the outer surface of luminous tube 71, so can prevent from producing gap between the outer surface and the 1st diaphragm 731 of luminous tube 71.Therefore, the situation that the water sample entering into the outer surface of luminous tube 71 and the gap of the 1st diaphragm 731 is mixed into water sample when next time analyzing such does not exist, so can prevent being mixed into of such water sample from causing bad influence to mensuration.Again; the such formation of the 1st diaphragm 731 can be formed through ultraviolet material if adopt; even if the relative broad range of the outer surface at luminous tube 71 (such as outer surface is overall) is inner define the 1st diaphragm 731, also bad influence can not be caused to mensuration.Therefore, luminous tube 71 can not be avoided to be subject to the impact of alkaline atmosphere with causing bad influence on mensuration.
Again, in this example, ultra-violet resistance and the high diamond-like-carbon of alkali resistance can be adopted, form the 1st diaphragm 731 at the outer surface of luminous tube 71.Thus, effectively can prevent the 1st diaphragm 731 deterioration, the water sample of the be full of cracks owing to entering into the 1st diaphragm 731 therefore can be prevented to be mixed into the such reason of water sample when next time analyzing and to cause bad influence to mensuration.But what the 1st diaphragm 731 was not limited to only to be formed by diamond-like-carbon is formed, it also can be the formation adopting the material of the composition comprised beyond diamond-like-carbon to be formed.
2nd diaphragm 732 is such as formed by resin.As resin, be preferably and adopt the ultra-violet resistance such as fluororesin and the high resin of alkali resistance, but also can be the resin beyond fluororesin.2nd diaphragm 732 can by being formed resin-coating in the outer surface of the 1st diaphragm 731.Now, can by the outer surface that resin is coated in thinly the 1st diaphragm 731 to form film etc., various method implements coating.The thickness of the 2nd diaphragm 732 adopting resin to be formed is preferably more than 0.01 μm, is more preferably more than 1 μm.
Like this, in this example, luminous tube 71 can be protected by the 1st stacked diaphragm 731 and the 2nd diaphragm 732.If the material adopting such as alkali resistance higher than the 1st diaphragm 731 forms the 2nd diaphragm 732, the deterioration of the 1st diaphragm 731 that can prevent alkaline atmosphere from causing, can carry out more effective protection to luminous tube 71.
In this example embodiment, by adopting the high resin of hydrophobicity to form the 2nd diaphragm 732, the 1st diaphragm 731 can be effectively avoided to be subject to the impact of alkaline atmosphere.When forming the 1st diaphragm 731 by evaporation as in the present embodiment; water sample may enter between the tiny particle on the surface of the 1st diaphragm 731; make the 1st diaphragm 731 deterioration; but adopt resin to form the 2nd diaphragm 732 on the 1st diaphragm 731, can effectively avoid the 1st diaphragm 731 to be subject to the impact of alkaline atmosphere.
Again, the ultra-violet resistance of resin is low, but owing to adopting the ultra-violet resistance diamond-like-carbon higher than the 2nd diaphragm 732 to form the 1st diaphragm 731, so can effectively protect the 2nd diaphragm 732 adopting resin to be formed to make it affect from ultraviolet.Therefore, the deterioration of UV-induced 2nd diaphragm 732 can be prevented, more effectively protect luminous tube 71.But what the 2nd diaphragm 732 was not limited to only to be formed by resin is formed, and also can be forming of being formed by the material of the composition comprised beyond resin, also can be by forming of not wrapping resiniferous other materials to be formed.
In this example, the 1st diaphragm 731 is only formed in a part for the outer surface of luminous tube 71.Specifically, the 1st diaphragm 731 is not formed in top ends 711 side of luminous tube 71, only forms the 1st diaphragm 731 in luminous tube 71 root 712 side.In this example embodiment, corresponding at the water level L with the water sample in reactive tank 5 position is formed with the 1st diaphragm 731.
The concept of the position corresponding with water level L not only comprises and the level part of water level L phase, also comprises the peripheral part of this part.That is, be formed with the 1st diaphragm 731 with the level part of water level L phase, its peripheral part, can having in top ends 711 side of luminous tube 71 part not forming the 1st diaphragm 731 at least partially.
Like this, in this example, form the 1st diaphragm 731 by the position corresponding at the water level L with water sample, position that can be corresponding at the water level L with water sample is protected luminous tube 71.Because the luminous tube 71 be submerged in the water sample of alkalescence is easy especially at the position wash-out corresponding with the water level L of water sample; so by forming the 1st diaphragm 731 in the position corresponding with this water level L, luminous tube 71 can be effectively protected to contact with the water sample of alkalescence to avoid it.Again, by only forming the 1st diaphragm 731 in the position that the water level L with water sample is corresponding, the fee of material of the 1st diaphragm 731 can be suppressed, therefore can reduce manufacturing cost.
In this example embodiment, the whole outer surface of the 1st diaphragm 731 is all covered by the 2nd diaphragm 732.But being not limited to such structure, also can be the formation that a part for the outer surface of only the 1st diaphragm 731 is covered by the 2nd diaphragm 732.In this case, be preferably, the 1st diaphragm 731 and the 2nd diaphragm 732 are at least formed in the position corresponding with the water level L of water sample.
The root 712 of luminous tube 71 is inserted in urceolus 74, in this urceolus 74, be provided with above-mentioned electrode 72.In this example, by being formed with the 1st diaphragm 731 in the position separated by a certain interval with urceolus 74, the outer surface of luminous tube 71 is exposed between urceolus 74 and the 1st diaphragm 731.That is, the upper edge of the 1st diaphragm 731 is between the water level L and the lower ora terminalis of urceolus 74 of water sample.Thus, water sample arrives the root 712 of luminous tube 71 via the 1st diaphragm 731 or the 2nd diaphragm 732 etc., can prevent the electric component (electrode 72 etc.) in luminous tube 71 from producing unfavorable condition.
In above example, the 1st diaphragm 731 is illustrated by forming of being formed of diamond-like-carbon.But being not limited to such structure, also can be form forming of the 1st diaphragm 731 by such as inorganic metal or inorganic metal compound.In this case, can be the formation forming the 2nd diaphragm 732 as above-mentioned example at the outer surface of the 1st diaphragm 731, also can be the formation not being formed with the 2nd diaphragm 732.
At this, inorganic metal refers to the inorganic metal simple substance that platinum or gold etc. are such.Again, inorganic metal compound refers to the compound comprising inorganic metal simple substance and other compositions, can illustrate sapphire or aluminium oxide etc.But, as inorganic metal or inorganic metal compound, be not limited to material as described above, ultra-violet resistance and the high any materials of alkali resistance can be adopted.
If adopt ultra-violet resistance and the high inorganic metal of alkali resistance or inorganic metal compound to form the 1st diaphragm 731; effectively can prevent the 1st diaphragm 731 deterioration, the water sample of the be full of cracks owing to entering into the 1st diaphragm 731 therefore can be prevented to be mixed into the such reason of water sample when next time analyzing and to cause bad influence to mensuration.But being not limited to only form forming of the 1st diaphragm 731 by inorganic metal or inorganic metal compound, also can be form forming of the 1st diaphragm 731 by the material of the composition comprised beyond inorganic metal or inorganic metal compound.
When the material by comprising inorganic metal or inorganic metal compound forms the 1st diaphragm 731, in the same manner as adopting the situation of diamond-like-carbon, the 1st diaphragm 731 can be formed by evaporation.The thickness of the 1st diaphragm 731 adopting inorganic metal or inorganic metal compound to be formed is preferably more than 0.01 μm, is more preferably more than 1 μm.
Again, also can be form forming of the 1st diaphragm 731 by such as resin.In this case, can form the 2nd diaphragm 732 for can't help the such resin of above-mentioned example but adopt other materials to form the formation of the 2nd diaphragm 732, also can be the formation being only formed with the 1st diaphragm 731.
As resin, be preferably and adopt the ultra-violet resistance such as fluororesin and the high resin of alkali resistance, but also can use the resin beyond fluororesin.When the resin formation the 1st diaphragm 731 adopting the alkali resistances such as fluororesin high; effectively can prevent the 1st diaphragm 731 deterioration, the reason that the water sample of the be full of cracks owing to entering the 1st diaphragm 731 therefore can be prevented to be mixed into water sample when next time analyzing such causes bad influence to mensuration.But what be not limited to that the 1st diaphragm 731 only formed by resin is formed, also can be forming of being formed by the material of the composition comprised beyond resin of the 1st diaphragm 731
When forming the 1st diaphragm 731 by the resiniferous material of bag, in the same manner as form the situation of the 2nd diaphragm 732 in above-mentioned example, the 1st diaphragm 731 can be formed by coating.The thickness of the 1st diaphragm 731 adopting resin to be formed is preferably more than 0.01 μm, is more preferably more than 1 μm.
In above example, luminous tube 71 is illustrated by forming of being formed of quartz glass.But luminous tube 71 is not limited to quartz glass, also can be forming of being formed by the bag such as synthetic quartz other quartz materials quartzous.
Again, in above example, the situation that ultraviolet lamp 7 is Cooper-Hewitt lamp is illustrated.But ultraviolet lamp 7 is not limited to Cooper-Hewitt lamp, can adopt as such as excimer laser, deuterium lamp, xenon lamp, Hg-Zn-Pb lamp etc. can any light source of irradiation ultraviolet radiation.
Further, in above example, to the water sample that luminous tube 71 be impregnated in reactive tank 5 and the such formation of direct irradiation ultraviolet be illustrated.But be not limited to such structure, ultraviolet lamp 7 also can be the formation from outside, accumulation being had to reactive tank 5 irradiation ultraviolet radiation of water sample.
Again, also can be that ultraviolet lamp 7 is used as the such formation of light source beyond reactive tank 5.In this case, ultraviolet lamp 7 can be also following formation: be not used in water sample, and is used in the alkaline atmosphere beyond in the medium such water of air such as containing ammonia.
In above example, the example of total nitrogen total phosphorus analyzer as analytical equipment is illustrated.But the present invention is not limited to total nitrogen total phosphorus analyzer, also other analytical equipments such as total organic carbon analyzer can be applicable to.
The explanation of symbol
1 stream switching part
2 syringes
3 water sample supply units
4 reagent supply units
5 reactive tanks
6 heaters
7 ultraviolet lamps
8 determination parts
9 control parts
21 cylindrical shells
22 plungers
71 luminous tubes
72 electrodes
73 diaphragms
74 urceolus
711 top ends
712 roots
713 spaced walls
714 inner spaces
731 the 1st diaphragms
732 the 2nd diaphragms
Ml, M2 motor.
Claims (8)
1. a ultraviolet lamp, its be in alkaline atmosphere by the ultraviolet lamp used, it is characterized in that, comprising:
Luminous tube, described luminous tube is formed by quartz material, sends ultraviolet light from inside; And
1st diaphragm, described 1st diaphragm, by the outer surface of film forming in described luminous tube, avoids described luminous tube to be subject to the impact of alkaline atmosphere.
2. ultraviolet lamp as claimed in claim 1, is characterized in that,
Described 1st diaphragm is formed by the material comprising diamond-like-carbon.
3. ultraviolet lamp as claimed in claim 1, is characterized in that,
Described 1st diaphragm is formed by the material comprising inorganic metal or inorganic metal compound.
4. the ultraviolet lamp according to any one of claims 1 to 3, is characterized in that, also comprises
2nd diaphragm, described 2nd diaphragm is formed at the outer surface of described 1st diaphragm, is made up of the material different from described 1st diaphragm.
5. ultraviolet lamp as claimed in claim 4, is characterized in that,
Described 2nd diaphragm is formed by wrapping resiniferous material.
6. the ultraviolet lamp according to any one of Claims 1 to 4, is characterized in that,
Described 1st diaphragm is formed by wrapping resiniferous material.
7. an analytical equipment, is characterized in that, comprising:
Ultraviolet lamp according to any one of claim 1 ~ 6;
Accumulation has the reactive tank of water sample; And
To the determination part that the composition of water sample oxidized in described reactive tank measures,
Described luminous tube is submerged in the water sample in described reactive tank.
8. analytical equipment as claimed in claim 7, is characterized in that,
Described 1st diaphragm is formed on the position corresponding with the water level of the water sample in described reactive tank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-070953 | 2014-03-31 | ||
| JP2014070953A JP6167967B2 (en) | 2014-03-31 | 2014-03-31 | Ultraviolet irradiation device and analyzer equipped with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104952687A true CN104952687A (en) | 2015-09-30 |
| CN104952687B CN104952687B (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510102515.7A Expired - Fee Related CN104952687B (en) | 2014-03-31 | 2015-03-09 | Ultraviolet lamp and the analytical equipment with the ultraviolet lamp |
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| Country | Link |
|---|---|
| JP (1) | JP6167967B2 (en) |
| CN (1) | CN104952687B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107352A (en) * | 2000-09-29 | 2002-04-10 | Shimadzu Corp | Water quality analyzer |
| JP2008119658A (en) * | 2006-11-15 | 2008-05-29 | Kurita Water Ind Ltd | Ultraviolet oxidation apparatus and organic matter removal apparatus |
| CN102077314A (en) * | 2008-06-25 | 2011-05-25 | 松下电器产业株式会社 | Glass tube for a fluorescent lamp and method for producing same |
| JP2012223732A (en) * | 2011-04-21 | 2012-11-15 | Photoscience Japan Corp | Liquid treating equipment |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4184101A (en) * | 1978-07-11 | 1980-01-15 | Westinghouse Electric Corp. | Compact fluorescent lamp having a partitioned envelope |
| JPS56138854A (en) * | 1980-03-31 | 1981-10-29 | Mitsubishi Electric Corp | Low pressure discharge lamp |
| JPS61144563U (en) * | 1985-02-27 | 1986-09-06 | ||
| US20030040651A1 (en) * | 1998-10-20 | 2003-02-27 | Wilson Joseph H. | Apparatus and method for chemically reducing waste materials |
| JP2001296648A (en) * | 2000-04-17 | 2001-10-26 | Mitsubishi Paper Mills Ltd | Mask for exposure and method for producing the same |
| JP3746207B2 (en) * | 2001-05-15 | 2006-02-15 | 株式会社日立製作所 | Sheet type microreactor and mobile type chemical analyzer |
| KR100772639B1 (en) * | 2005-10-18 | 2007-11-02 | 한국기계연구원 | Stamp for micro/nanoimprint lithography using diamond-like carbon and method of fabricating the same |
| US20070170379A1 (en) * | 2006-01-24 | 2007-07-26 | Nikon Corporation | Cooled optical filters and optical systems comprising same |
| JP2008010356A (en) * | 2006-06-30 | 2008-01-17 | Matsushita Electric Ind Co Ltd | Fluorescent lamp |
| JP4599371B2 (en) * | 2007-03-22 | 2010-12-15 | トーカロ株式会社 | Amorphous carbon hydrogen solid coating member and method for producing the same |
| CN104115009B (en) * | 2012-02-17 | 2016-08-24 | 株式会社岛津制作所 | Determination of total nitrogen content device |
-
2014
- 2014-03-31 JP JP2014070953A patent/JP6167967B2/en not_active Expired - Fee Related
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2015
- 2015-03-09 CN CN201510102515.7A patent/CN104952687B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107352A (en) * | 2000-09-29 | 2002-04-10 | Shimadzu Corp | Water quality analyzer |
| JP2008119658A (en) * | 2006-11-15 | 2008-05-29 | Kurita Water Ind Ltd | Ultraviolet oxidation apparatus and organic matter removal apparatus |
| CN102077314A (en) * | 2008-06-25 | 2011-05-25 | 松下电器产业株式会社 | Glass tube for a fluorescent lamp and method for producing same |
| JP2012223732A (en) * | 2011-04-21 | 2012-11-15 | Photoscience Japan Corp | Liquid treating equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6167967B2 (en) | 2017-07-26 |
| CN104952687B (en) | 2018-02-27 |
| JP2015191884A (en) | 2015-11-02 |
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