CN105044292B - The nitrogen elemental analyser of configuration ozone thermal decomposer - Google Patents
The nitrogen elemental analyser of configuration ozone thermal decomposer Download PDFInfo
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- CN105044292B CN105044292B CN201510499129.6A CN201510499129A CN105044292B CN 105044292 B CN105044292 B CN 105044292B CN 201510499129 A CN201510499129 A CN 201510499129A CN 105044292 B CN105044292 B CN 105044292B
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- ozone
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- pyrolysis furnace
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Abstract
The invention discloses a kind of nitrogen elemental analyser configuring ozone thermal decomposer, it includes reative cell, exsiccator, pyrolysis furnace and pipeline.The straight tube that phase parallel with cracking tube is leaned on is set in described pyrolysis furnace, straight tube accepts the heat radiation of cracking tube, the tail gas drawn from the outlet of exsiccator left end enters straight tube along pipeline, and the ozone being mixed in tail gas is broken down into oxygen, oxygen and tail gas through high temperature heat radiation and discharges safely from straight tube left end exit.The present invention makes full use of the radiations heat energy of pyrolysis furnace, is not required to the tail gas of extra consumed energy thermal decomposition straight tube inner chamber circulation so that the ozone being mixed in tail gas is broken down into oxygen, it is ensured that outer last person's gas does not has ozone pollution problem.
Description
Technical field
The present invention relates to a kind of analytical tool, in particular it relates to a kind of nitrogen element content analyser, a kind of nitrogen elemental analyser configuring ozone thermal decomposer.
Background technology
Now, mensuration oil and the commonly used chemoluminescence method of petroleum derivation product nitrogen element content are analyzed.The method places a sample into heated burning in pyrolysis furnace and generates nitrogen dioxide, the nitrogen dioxide derived from pyrolysis furnace is sent into reative cell and is reacted with ozone, this reaction generates titanium dioxide phenodiazine, decomposes, by detection titanium dioxide phenodiazine, the photon amount sent and infers the nitrogen element content of sample.This structure of the detecting device is simple, easy to use, and measurement result is accurately, reliably, it is possible to meet sample oxygen element content conventional sense requirement.Due to, chemoluminescence method needs the nitrogen dioxide generated by sample dissociation to react in reative cell with the ozone of excess, and the ozone that reative cell is had more than needed externally discharges along with tail gas.In order to reduce the ozone pollution to environment, prior art is generally equipped with activated carbon container at the air vent of reative cell, utilizes the adsorption of activated carbon to collect ozone.Although these technical measures are largely effective, it is possible to reach to reduce discharging purpose, but activated carbon adsorptive capacity is limited, need to change in time.Otherwise, activated carbon excessive adsorption can become the polluter that ozone is new.
Summary of the invention
Present invention is generally directed to the deficiencies in the prior art, propose a kind of nitrogen elemental analyser configuring ozone thermal decomposer, this apparatus structure is simple, reasonable, makes full use of supporting pyrolysis furnace heat energy and removes ozone, and detection process does not occur ozone pollution environmental problem.
The present invention is achieved through the following technical solutions technical goal.
The nitrogen elemental analyser of configuration ozone thermal decomposer, it includes reative cell, exsiccator, pyrolysis furnace and pipeline.The nitrogen dioxide gas that the built-in cracking tube of described pyrolysis furnace generates from left end exit output sample oxidation burning, nitrogen dioxide gas along pipeline by way of exsiccator and guide in reative cell with excess ozone reaction, reaction generates titanium dioxide two nitrogen, and ozone more than needed in reative cell makees dried with tail gas through connecting pipeline entrance exsiccator.It thes improvement is that: set the straight tube that phase parallel with cracking tube is leaned in described pyrolysis furnace, straight tube directly accepts the heat radiation of pyrolysis furnace, the tail gas drawn from the outlet of exsiccator left end enters straight tube along pipeline, the ozone being mixed in tail gas is broken down into oxygen, oxygen and tail gas through high temperature heat radiation and discharges safely from straight tube left end exit.
As further improvement project, described cracking tube phase parallel with straight tube is leaned on, 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 the positive effect that:
1, in pyrolysis furnace, dispose lean on straight tube of phase parallel with cracking tube, simple in construction, install convenient, easily manufacture；
2, the straight tube being in pyrolysis furnace, takes full advantage of the radiations heat energy of pyrolysis furnace, the most additionally increases energy consumption；
3, the ozone in tail gas is become oxygen by high temperature thermal decomposition in straight tube, has both accomplished to eliminate the problem of ozone pollution detection environment, has not the most used activated carbon, can significantly reduce testing cost.
Accompanying drawing explanation
Fig. 1 is attachment structure schematic diagram of the present invention.
Detailed description of the invention
Below according to accompanying drawing 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 includes reative cell 1, exsiccator 2, pyrolysis furnace 3 and the pipeline 4 of UNICOM between each equipment.The cracking tube 3.1 of described pyrolysis furnace 3 configuration exposes the mouth of pipe from two ends, right-hand member is import, left end is outlet, and detected sample is sent into oxidizing fire in cracking tube 3.1, the nitrogen dioxide gas of generation from the outlet output of cracking tube 3.1 left end after dried made by exsiccator 2 until reative cell 1.The ozone of the built-in excess of reative cell 1, the nitrogen dioxide gas of input and ozone produces chemical reaction, and reaction generates titanium dioxide two nitrogen, and in reative cell 1, remaining ozone enters exsiccator 2 with tail gas through pipeline 4 and makees dried.In order to eliminate the ozone in tail gas, reduce the pollution to atmospheric environment, the present invention sets the straight tube 3.2 that phase parallel with cracking tube 3.1 is leaned in pyrolysis furnace 3, owing to straight tube 3.2 is adjacent with cracking tube 3.1, when cracking tube 3.1 heating reaches sample oxidation ignition temperature, it is positioned at straight tube 3.2 on one side and directly accepts the heat radiation of pyrolysis furnace 3.The easily thermal decomposition of one of physical characteristic of ozone, under the conditions of temperature 270 DEG C, ozone is immediately converts into oxygen.So, as long as cavity temperature reaches 270 DEG C in straight tube 3.2, it becomes possible to eliminate the ozone in outer last person's gas.Straight tube 3.2 and cracking tube 3.1 in the present embodiment are all quartz wares, both lean on parallel phase, under the conditions of ordinary room temperature, 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 directly outer be arranged.
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, it is not required to the tail gas of extra consumed energy thermal decomposition straight tube 3.2 inner chamber circulation so that the ozone being mixed in tail gas is broken down into oxygen, it is ensured that outer last person's gas does not has ozone pollution problem.It addition, whole detection process is not required to configure activated carbon, the most there is not timely replacing problem, testing cost can be significantly reduced.
Claims (3)
1. configuring a nitrogen elemental analyser for ozone thermal decomposer, it includes reative cell (1), exsiccator (2), pyrolysis furnace (3) and pipeline (4)；The nitrogen dioxide gas that the built-in cracking tube (3.1) of described pyrolysis furnace (3) generates from left end exit output sample oxidation burning, nitrogen dioxide gas along pipeline (4) by way of exsiccator (2) and guide in reative cell (1) with excess ozone reaction, reaction generates titanium dioxide two nitrogen, and ozone more than needed in reative cell (1) enters exsiccator (2) with tail gas through another road pipeline (4) and makees dried；It is characterized in that: in described pyrolysis furnace (3), set the straight tube (3.2) leaned on cracking tube (3.1) parallel phase, straight tube (3.2) directly accepts the heat radiation of pyrolysis furnace (3), the tail gas drawn from the outlet of exsiccator (2) left end enters straight tube (3.2) along pipeline (4), the ozone being mixed in tail gas is broken down into oxygen, oxygen and tail gas through high temperature heat radiation and discharges safely from straight tube (3.2) left end exit.
The nitrogen elemental analyser of configuration ozone thermal decomposer the most according to claim 1, it is characterised in that: described straight tube (3.2) internal radiation temperature 1050 DEG C ± 5 DEG C.
The nitrogen elemental analyser of configuration ozone thermal decomposer the most according to claim 1, it is characterised in that: described cracking tube (3.1) and straight tube (3.2) are quartz ware.
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| 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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| CN105044292B true CN105044292B (en) | 2016-11-30 |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100514042C (en) * | 2005-07-21 | 2009-07-15 | 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 |
| JP2011075545A (en) * | 2009-09-01 | 2011-04-14 | Horiba Ltd | 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 |
| JP2012189550A (en) * | 2011-03-14 | 2012-10-04 | Horiba Ltd | Gas concentration measuring device |
| CN204925071U (en) * | 2015-08-14 | 2015-12-30 | 泰州市中环分析仪器有限公司 | Hot decomposition device's of configuration ozone nitrogen elementary analysis appearance |
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