CN105044292A - Nitrogen element analyzer equipped with ozone thermal decomposition apparatus - Google Patents
Nitrogen element analyzer equipped with ozone thermal decomposition apparatus Download PDFInfo
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- CN105044292A CN105044292A CN201510499129.6A CN201510499129A CN105044292A CN 105044292 A CN105044292 A CN 105044292A CN 201510499129 A CN201510499129 A CN 201510499129A CN 105044292 A CN105044292 A CN 105044292A
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- ozone
- tail gas
- straight tube
- nitrogen
- pyrolysis furnace
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Abstract
The invention discloses a nitrogen element analyzer equipped with an ozone thermal decomposition apparatus. The nitrogen element analyzer comprises a reaction chamber, a dryer, a cracking furnace and a pipeline. The cracking furnace is internally provided with a straight pipe which is against a cracking pipe in parallel, the straight pipe is subjected to the heat radiation of the cracking pipe, tail gas led out from a left outlet of the dryer enters the straight pipe along the pipeline, ozone mixed in the tail gas is decomposed into oxygen by means of high-temperature thermal radiation, and the oxygen and the tail gas are safely discharged from a left end outlet of the straight pipe. The radiation heat of the cracking furnace is sufficiently utilized, no additional energy for thermally decomposing the tail gas flowing in an inner cavity of the straight pipe is consumed, so that the ozone mixed in the tail gas is decomposed into oxygen, and the ozone pollution problem of the discharged tail gas can be avoided.
Description
Technical field
The present invention relates to a kind of analytical instrument, specifically, the present invention relates to a kind of nitrogen element content analyser, particularly a kind of nitrogen elemental analyser configuring ozone thermal decomposer.
Background technology
Now, analysis mensuration oil and petroleum derivation product nitrogen element content generally adopt chemoluminescence method.Sample is inserted in pyrolysis furnace and is generated nitrogen dioxide through heating flame by the method, the nitrogen dioxide of deriving from pyrolysis furnace sends into reaction chamber and ozone reacts, this reaction generates titanium dioxide phenodiazine, decomposes by detecting titanium dioxide phenodiazine the nitrogen element content that the photon amount sent infers sample.This structure of the detecting device is simple, easy to use, and measurement result is accurate, reliable, can meet the requirement of sample oxygen element content conventional sense.Because, chemoluminescence method needs the nitrogen dioxide generated by sample dissociation to react in reaction chamber with excessive ozone, the reaction chamber ozone of having more than needed externally discharges along with tail gas.In order to reduce the pollution of ozone to environment, prior art is equipped with activated carbon container at the exhausr port of reaction chamber usually, utilizes the suction-operated of activated charcoal to collect ozone.Although these technical measures are very effective, can reach reduction of discharging object, activated carbon adsorptive capacity is limited, needs to change in time.Otherwise, the pollution source that activated charcoal excessive adsorption meeting ozonize is new.
Summary of the invention
The present invention, mainly for the deficiencies in the prior art, proposes a kind of nitrogen elemental analyser configuring ozone thermal decomposer, and this apparatus structure is simple, rationally, make full use of supporting pyrolysis furnace heat energy and remove ozone, ozone pollution environmental problem does not occur testing process.
The present invention is achieved through the following technical solutions technical goal.
The nitrogen elemental analyser of configuration ozone thermal decomposer, it comprises reaction chamber, exsiccator, pyrolysis furnace and pipeline.The built-in cracking tube of described pyrolysis furnace exports the nitrogen dioxide gas that sample oxidation burning generates from left end exit, nitrogen dioxide gas guides to ozone reaction in reaction chamber with excessive along pipeline by way of exsiccator, reaction generates titanium dioxide two nitrogen, and ozone more than needed in reaction chamber enters exsiccator with tail gas through connecting tube and does dry process.Its improvements are: establish the straight tube that mutually lean on parallel with cracking tube in described pyrolysis furnace, straight tube directly accepts the heat radiation of pyrolysis furnace, the tail gas of drawing from the outlet of exsiccator left end enters straight tube along pipeline, the ozone be mixed in tail gas is broken down into oxygen through high temperature heat radiation, and oxygen and tail gas are discharged safely from straight tube left end exit.
As further improvement project, described cracking tube is parallel with straight tube to be leaned on mutually, straight tube internal radiation temperature 1050 DEG C ± 5 DEG C.
As further improvement project, described cracking tube and straight tube are quartz ware.
The present invention compared with prior art, has following good effect:
1, in pyrolysis furnace, settle mutually lean on straight tube parallel with cracking tube, structure simply, install convenient, easily manufacture;
2, be in the straight tube in pyrolysis furnace, take full advantage of the radiations heat energy of pyrolysis furnace, additionally do not increase energy consumption;
3, the ozone in tail gas is become oxygen by high temperature thermal decomposition in straight tube, has both accomplished the problem eliminating ozone pollution testing environment, has not used activated charcoal again, significantly can reduce testing cost.
Accompanying drawing explanation
Fig. 1 is syndeton schematic diagram of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
The nitrogen elemental analyser of the configuration ozone thermal decomposer shown in Fig. 1, it comprises reaction chamber 1, exsiccator 2, pyrolysis furnace 3 and the pipeline 4 for UNICOM between each equipment.The cracking tube 3.1 that described pyrolysis furnace 3 configures exposes the mouth of pipe from two ends, right-hand member is import, left end is outlet, and oxidizing fire in cracking tube 3.1 sent to by detected sample, and the nitrogen dioxide gas of generation exports after dry process done by exsiccator 2 until reaction chamber 1 from the outlet of cracking tube 3.1 left end.The built-in excessive ozone of reaction chamber 1, the nitrogen dioxide gas of input and ozone produce chemical reaction, and reaction generates titanium dioxide two nitrogen, and in reaction chamber 1, remaining ozone enters exsiccator 2 with tail gas through pipeline 4 and does dry process.In order to eliminate the ozone in tail gas, reduce the pollution to atmospheric environment, the present invention establishes the straight tube 3.2 that mutually lean on parallel with cracking tube 3.1 in pyrolysis furnace 3, because straight tube 3.2 is adjacent with cracking tube 3.1, when cracking tube 3.1 heating reaches sample oxidation temperature of combustion, be positioned at the heat radiation that straight tube 3.2 on one side directly accepts pyrolysis furnace 3.The easily thermal decomposition of one of physical characteristics of ozone, under temperature 270 DEG C of conditions, ozone is converted into oxygen immediately.So, as long as cavity temperature reaches 270 DEG C in straight tube 3.2, the ozone in outer last person's gas just can be eliminated.Straight tube 3.2 in the present embodiment and cracking tube 3.1 are all quartz wares, both are parallel leans on mutually, under ordinary room temperature condition, straight tube 3.2 is warming up to 1050 DEG C ± 5 DEG C by the heat radiation of pyrolysis furnace 3, under this temperature conditions, ozone contained in tail gas is thermal decomposited into oxygen, and because not containing ozone composition in tail gas, the outlet of straight tube 3.2 left end can be arranged directly outward.
It is other that the straight tube 3.2 that the present invention is arranged is positioned at cracking tube 3.1, make full use of pyrolysis furnace 3 radiations heat energy, the tail gas not needing extra consumed energy thermal decomposition straight tube 3.2 inner chamber to circulate, makes the ozone be mixed in tail gas be broken down into oxygen, guarantees that outer last person's gas does not have ozone pollution problem.In addition, whole testing process does not need to configure activated charcoal, there is not timely replacing problem yet, significantly can reduce testing cost.
Claims (3)
1. configure a nitrogen elemental analyser for ozone thermal decomposer, it comprises reaction chamber (1), exsiccator (2), pyrolysis furnace (3) and pipeline (4); The built-in cracking tube (3.1) of described pyrolysis furnace (3) exports the nitrogen dioxide gas that sample oxidation burning generates from left end exit, nitrogen dioxide gas along pipeline (4) by way of exsiccator (2) and guide in reaction chamber (1) with excessive ozone reaction, reaction generates titanium dioxide two nitrogen, and ozone more than needed in reaction chamber (1) enters exsiccator (2) with tail gas through another road pipeline (4) and does dry process; It is characterized in that: in described pyrolysis furnace (3), establish the straight tube (3.2) that mutually lean on parallel with cracking tube (3.1), straight tube (3.2) directly accepts the heat radiation of pyrolysis furnace (3), the tail gas of drawing from the outlet of exsiccator (2) left end enters straight tube (3.2) along pipeline (4), the ozone be mixed in tail gas is broken down into oxygen through high temperature heat radiation, and oxygen and tail gas are discharged safely from straight tube (3.2) left end exit.
2. the nitrogen elemental analyser of configuration ozone thermal decomposer according to claim 1, is characterized in that: described straight tube (3.2) internal radiation temperature 1050 DEG C ± 5 DEG C.
3. the nitrogen elemental analyser of configuration ozone thermal decomposer according to claim 1, is characterized in that: described cracking tube (3.1) and straight tube (3.2) are quartz ware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510499129.6A CN105044292B (en) | 2015-08-14 | 2015-08-14 | The nitrogen elemental analyser of configuration ozone thermal decomposer |
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| CN201510499129.6A CN105044292B (en) | 2015-08-14 | 2015-08-14 | The nitrogen elemental analyser of configuration ozone thermal decomposer |
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| CN105044292A true CN105044292A (en) | 2015-11-11 |
| CN105044292B CN105044292B (en) | 2016-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109425684A (en) * | 2017-08-24 | 2019-03-05 | 湖南三德科技股份有限公司 | A kind of steam generator and elemental analyser |
| CN114660153A (en) * | 2020-12-22 | 2022-06-24 | 安徽皖仪科技股份有限公司 | Nitrogen oxide analyzer |
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| CN1715882A (en) * | 2005-07-21 | 2006-01-04 | 华南师范大学 | Double room type nitrogen oxide chemiluminescence reactor |
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| US20110048108A1 (en) * | 2009-09-01 | 2011-03-03 | Yutaka Yamagishi | Gas sensor |
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2015
- 2015-08-14 CN CN201510499129.6A patent/CN105044292B/en active Active
Patent Citations (6)
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| CN1715882A (en) * | 2005-07-21 | 2006-01-04 | 华南师范大学 | Double room type nitrogen oxide chemiluminescence reactor |
| CN201041549Y (en) * | 2007-05-10 | 2008-03-26 | 沈阳东宇集团股份有限公司 | Device for analyzing Nitrogen and oxide based on chemical lighting method |
| US20110048108A1 (en) * | 2009-09-01 | 2011-03-03 | Yutaka Yamagishi | Gas sensor |
| CN201716269U (en) * | 2010-06-10 | 2011-01-19 | 山东省科学院海洋仪器仪表研究所 | Device for determining chemiluminescence characteristics of solid particles oxidized by ozone |
| EP2500712A2 (en) * | 2011-03-14 | 2012-09-19 | HORIBA, Ltd. | Gas concentration measuring apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425684A (en) * | 2017-08-24 | 2019-03-05 | 湖南三德科技股份有限公司 | A kind of steam generator and elemental analyser |
| CN114660153A (en) * | 2020-12-22 | 2022-06-24 | 安徽皖仪科技股份有限公司 | Nitrogen oxide analyzer |
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| Publication number | Publication date |
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| CN105044292B (en) | 2016-11-30 |
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