CN109696394A - A kind of used in aging of adsorption tubes instrument - Google Patents
A kind of used in aging of adsorption tubes instrument Download PDFInfo
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- CN109696394A CN109696394A CN201910025283.8A CN201910025283A CN109696394A CN 109696394 A CN109696394 A CN 109696394A CN 201910025283 A CN201910025283 A CN 201910025283A CN 109696394 A CN109696394 A CN 109696394A
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- heating
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- standard specimen
- body fuselage
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- 230000032683 aging Effects 0.000 title claims abstract description 71
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 87
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 239000012159 carrier gas Substances 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000003679 aging effect Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012855 volatile organic compound Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 208000010513 Stupor Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000133 brain stem Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004147 desorption mass spectrometry Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- Environmental & Geological Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
It the invention proposes a kind of used in aging of adsorption tubes instrument, is set in aging heating zone there are three mutually independent heating channel, is respectively equipped with seven heating positions in each heating channel, and independently equipped with heating rod in each heating channel；The lower part of injection port is independently equipped with heating rod, and injection port is connected with sample pore；Nitrogen interface is connected with three heating channels respectively by three heater switch valves；Nitrogen interface prepares carrier gas switch valve by standard specimen and is connected with injection port；Aging temperature controller is connect with the heating rod in heating channel；Standard specimen temperature controller is connect with the heating rod in injection port.Beneficial effects of the present invention are as follows: can aging simultaneously be up to 21 adsorption tubes, can also only open wherein 1 group or 2 groups of heating channels, it is ensured that maximum working efficiency, while also realizing the saving of the energy and cost.Standard specimen preparation function is increased, realizes a tractor serves several purposes.The interim of aging temperature may be implemented to rise, reach optimal aging effect.
Description
Technical field
The present invention relates to volatile organic compounds monitoring equipment and instrument technical fields, and it is old to particularly relate to a kind of adsorption tube
Change instrument.
Background technique
Volatile organic compounds (VOC) refers to a kind of volatile organic compounds to environmental danger.Outside the room VOC
Mainly from fuel combustion and communications and transportation；In the room VOC mainly from the combustion products such as coal-fired and natural gas, smoking, heating and
The smog of the generations such as the cooking, the discharge etc. of building and ornament materials, furniture, household electrical appliance, detergent and human body itself.Work as VOC
When reaching a certain concentration in air, people will feel headache, nausea, limbs fatigue；If continuing to stay for a long time, can hurt
Evil liver, kidney, brain and nervous system, in some instances it may even be possible to cause the serious consequences such as twitch, stupor, failure of memory.Therefore, it is necessary to right
VOC in environment is monitored, and adsorption tube sampling and thermal desorption/gas chromatography mass spectrometry are contained in monitoring method step,
The thermal desorption pipe and adsorption tube quantity used in these monitorings are continuously increased, and corresponding used in aging of adsorption tubes recycling becomes
Indispensable work, used in aging of adsorption tubes need to use ageing device.
Traditional used in aging of adsorption tubes instrument can only aging one or a few adsorption tube, this batch used in aging of adsorption tubes be good simultaneously
Afterwards, it needs that adsorption tube could be taken out after waiting it to cool down completely, then carries out the aging of next batch adsorption tube again.It is directed in this way
Large batch of used in aging of adsorption tubes need of work takes a long time, and working efficiency is low.If the aging digit of ageing device increased
Add, and can there are problems that gas when aging minority adsorption tube wastes.
It also needs to do standard specimen with adsorption tube sometimes in laboratory, this just needs other standard specimen apparatus for preparation to be converted to liquid mark
Adsorption tube standard specimen.
In addition, adsorption tube needs a temperature program to control aging temperature to be really achieved optimal aging effect
Stage rises.But traditional ageing device is all single aging at temperature, is unfavorable for adsorption tube and reaches optimal aging effect.
Summary of the invention
The present invention proposes a kind of used in aging of adsorption tubes instrument, solves that ageing device working efficiency in the prior art is low, function list
One, to used in aging of adsorption tubes less effective the problem of.
The technical scheme of the present invention is realized as follows:
A kind of used in aging of adsorption tubes instrument, comprising: body fuselage, the aging heating zone at the top of the body fuselage, sample introduction
Mouth and sample pore, aging temperature controller, standard specimen temperature controller and temperature detect switch (TDS) on the body fuselage front panel, Yi Jiwei
Carrier gas switch valve is prepared in three heater switch valves, a nitrogen interface and the standard specimen on the body fuselage rear panel；
It is set in the aging heating zone there are three mutually independent heating channel, is respectively equipped with seven heating in each heating channel
Position, and heating rod is independently equipped in each heating channel；The lower part of the injection port is independently equipped with heating rod, and institute
Injection port is stated to be connected with the sample pore；The nitrogen interface is by three heater switch valves respectively and described in three
Heating channel is connected；The nitrogen interface prepares carrier gas switch valve by the standard specimen and is connected with the injection port；It is described
Aging temperature controller is connect with the heating rod in the heating channel；Heating rod in the standard specimen temperature controller and the injection port connects
It connects；The temperature detect switch (TDS) is connect with the aging temperature controller.
Preferably, being additionally provided with flow stabilizing valve at the top of the body fuselage, it is additionally provided on the rear panel of the body fuselage
One pressure regulator valve, the body fuselage are that spinner flowmeter and pressure gauge are additionally provided on front panel；The spinner flowmeter passes through
The flow stabilizing valve is connected to the injection port；The pressure gauge is connected to by the pressure regulator valve with the heating channel.
Working principle of the present invention is as follows:
Used in aging of adsorption tubes principle: adsorption tube to be aging is inserted on the heating position in the heating channel of aging heating zone,
Temperature detect switch (TDS) is opened, adsorption tube is heated in the heating rod work in the corresponding heating channel of aging temperature controller control；It opens simultaneously
Heater switch valve corresponding to corresponding heating channel is opened, so that nitrogen passes sequentially through nitrogen interface, heater switch valve enters heating
In channel, thereby realizes under certain temperature and the effect of certain inert gas, take out the residuum in adsorption tube；By
It can control temperature stage in aging temperature controller to rise, to guarantee that adsorption tube reaches optimal aging effect.
Standard specimen preparation principle: it by clean adsorption tube insertion sample pore, opens standard specimen and prepares carrier gas switch valve, by nitrogen
Gas passes sequentially through nitrogen interface, standard specimen preparation carrier gas switch valve is passed through in injection port, while opening standard specimen temperature controller, so that sample introduction
The heating rod of mouthful lower part is started to work, and liquid standard specimen is squeezed into injection port, and by thermal evaporation, the standard specimen after gasification exists liquid standard specimen
Nitrogen drives in the lower adsorption tube for entering sample pore.
The independent heating rod in above-mentioned heating channel of heating rod in above-mentioned injection port, to make the room temperature independence that gasifies
In aging room temperature.
The invention has the benefit that
Be independently arranged 7 heating positions by point three groups of heating channels, every group of heating channel, can and meanwhile aging be up to 21
Adsorption tube can only open wherein 1 group or 2 groups of heating channels when needing the adsorption tube quantity of aging to lack, other heating channels
It is not turned on, both increases flexibility in this way, ensure that maximum working efficiency, while also realizing the saving of the energy and cost.
Standard specimen preparation function is increased, which greatly facilitates the practical application in laboratory, realizes a tractor serves several purposes.
By the way that aging temperature controller is arranged, the interim of aging temperature may be implemented and rise, according to the adsorption tube of different fillers
Specific interim heating setting is carried out in ageing process, reaches best, most clean aging effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic perspective view of used in aging of adsorption tubes instrument of the present invention；
Fig. 2 is the structural schematic diagram of used in aging of adsorption tubes instrument front panel of the present invention；
Fig. 3 is the top view of Fig. 2；
In figure:
1, body fuselage, 2, aging heating zone, 3, heating channel, 4, heater switch valve, 5, nitrogen interface, 6, standard specimen preparation
Carrier gas switch valve, 7, pressure regulator valve, 8, flow stabilizing valve, 9, injection port, 10, sample pore, 11, aging temperature controller, 12, standard specimen temperature control
Device, 13, spinner flowmeter, 14, pressure gauge, 15, temperature detect switch (TDS).
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment as shown in FIG. 1 to FIG. 3 is it is found that a kind of used in aging of adsorption tubes instrument of the present invention, comprising: body fuselage
1, aging heating zone 2, injection port 9 and sample pore 10 positioned at 1 top of body fuselage, on 1 front panel of body fuselage
Aging temperature controller 11, standard specimen temperature controller 12 and temperature detect switch (TDS) 15, and three heater switch on 1 rear panel of body fuselage
4, nitrogen interfaces 5 of valve and a standard specimen prepare carrier gas switch valve 6；It sets in aging heating zone 2 and adds there are three mutually independent
The passage of heat 3 is respectively equipped with seven heating positions in each heating channel 3, and heating is independently equipped in each heating channel 3
Stick；The lower part of injection port 9 is independently equipped with heating rod, and injection port 9 is connected with sample pore 10；Nitrogen interface 5 passes through three
Heater switch valve 4 is connected with three heating channels 3 respectively；Nitrogen interface 5 by standard specimen prepare carrier gas switch valve 6 with into
Sample mouth 9 is connected；Aging temperature controller 11 is connect with the heating rod in heating channel 3；Adding in standard specimen temperature controller 12 and injection port 9
Hot pin connection；Temperature detect switch (TDS) 15 is connect with aging temperature controller 11.
The top of above-mentioned body fuselage 1 is additionally provided with flow stabilizing valve 8, and a pressure regulator valve is additionally provided on the rear panel of body fuselage 1
7, body fuselage 1 is that spinner flowmeter 13 and pressure gauge 14 are additionally provided on front panel；Spinner flowmeter 13 by flow stabilizing valve 8 with into
Sample mouth 9 is connected to；Pressure gauge 14 is connected to by pressure regulator valve 7 with heating channel 3.
The working principle of above-mentioned used in aging of adsorption tubes instrument is as follows:
Used in aging of adsorption tubes principle: by the heating position in the heating channel 3 of adsorption tube insertion aging heating zone 2 to be aging
On, temperature detect switch (TDS) 15 is opened, aging temperature controller 11 controls the heating rod work in corresponding heating channel 3, adds to adsorption tube
Heat；Heater switch valve 4 corresponding to corresponding heating channel 3 is opened simultaneously, so that nitrogen passes sequentially through nitrogen interface 5, heating is opened
It closes valve 4 to enter in heating channel 3, thereby realizes under certain temperature and the effect of certain inert gas, take out in adsorption tube
Residuum；Rise since aging temperature controller 11 can control temperature stage, to guarantee that adsorption tube reaches optimal
Aging effect.
Standard specimen preparation principle: by clean adsorption tube insertion sample pore 10, opening standard specimen and prepare carrier gas switch valve 6,
Nitrogen is passed sequentially through into nitrogen interface 5, standard specimen preparation carrier gas switch valve 6 is passed through in injection port 9, while opening standard specimen temperature controller
12 so that the heating rod of 9 lower part of injection port is started to work, liquid standard specimen is squeezed into injection port 9, liquid standard specimen by thermal evaporation,
Standard specimen after gasification enters in the adsorption tube of sample pore 10 under nitrogen drive.
The independent heating rod in above-mentioned heating channel 3 of heating rod in above-mentioned injection port 9, to keep gasification room temperature only
Stand on aging room temperature.
Carrier gas flux size can be monitored at any time by spinner flowmeter 13, and carrier gas flux is realized by flow stabilizing valve 8
It adjusts.
The pressure size in channel is heated by the adjustable aging of pressure gauge 14.
In conclusion the present invention is independently arranged 7 heating positions by point three groups of heating channels, every group of heating channel, it can
Aging simultaneously is up to 21 adsorption tubes, when needing the adsorption tube quantity of aging to lack, can only open wherein 1 group or 2 groups of heating
Channel, other heating channels are not turned on, both increase flexibility in this way, ensure that maximum working efficiency, while also realizing
The saving of the energy and cost.
Standard specimen preparation function is increased, which greatly facilitates the practical application in laboratory, realizes a tractor serves several purposes.
By the way that aging temperature controller is arranged, the interim of aging temperature may be implemented and rise, according to the adsorption tube of different fillers
Specific interim heating setting is carried out in ageing process, reaches best, most clean aging effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of used in aging of adsorption tubes instrument characterized by comprising body fuselage (1) is located at the top of the body fuselage (1)
Aging heating zone (2), injection port (9) and sample pore (10), the aging temperature controller being located on the body fuselage (1) front panel
(11), standard specimen temperature controller (12) and temperature detect switch (TDS) (15), and three heating being located on the body fuselage (1) rear panel are opened
Close valve (4), a nitrogen interface (5) and standard specimen preparation carrier gas switch valve (6)；Three are equipped in the aging heating zone (2)
A mutually independent heating channel (3), is respectively equipped with seven heating positions in each heating channel (3), and each described adds
Heating rod is independently equipped in the passage of heat (3)；The lower part of the injection port (9) is independently equipped with heating rod, and the injection port
(9) it is connected with the sample pore (10)；The nitrogen interface (5) is by three heater switch valves (4) respectively with three
A heating channel (3) is connected；The nitrogen interface (5) by the standard specimen preparation carrier gas switch valve (6) and it is described into
Sample mouth (9) is connected；The aging temperature controller (11) connect with the heating rod in heating channel (3)；The standard specimen temperature control
Device (12) is connect with the heating rod in the injection port (9)；The temperature detect switch (TDS) (15) connect with the aging temperature controller (11).
2. a kind of used in aging of adsorption tubes instrument according to claim 1, which is characterized in that the top of the body fuselage (1) is also
Equipped with flow stabilizing valve (8), a pressure regulator valve (7) is additionally provided on the rear panel of the body fuselage (1), the body fuselage (1) is
Spinner flowmeter (13) and pressure gauge (14) are additionally provided on front panel；The spinner flowmeter (13) passes through the flow stabilizing valve (8)
It is connected to the injection port (9)；The pressure gauge (14) is connected to by the pressure regulator valve (7) with the heating channel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025283.8A CN109696394A (en) | 2019-01-11 | 2019-01-11 | A kind of used in aging of adsorption tubes instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025283.8A CN109696394A (en) | 2019-01-11 | 2019-01-11 | A kind of used in aging of adsorption tubes instrument |
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| Publication Number | Publication Date |
|---|---|
| CN109696394A true CN109696394A (en) | 2019-04-30 |
Family
ID=66233207
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910025283.8A Pending CN109696394A (en) | 2019-01-11 | 2019-01-11 | A kind of used in aging of adsorption tubes instrument |
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| CN (1) | CN109696394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067370A (en) * | 2020-09-11 | 2020-12-11 | 上海朋环测控技术股份有限公司 | Adsorption tube aging instrument and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311865A (en) * | 1997-05-09 | 1998-11-24 | Nec Corp | Burn-in test equipment |
| CN205826483U (en) * | 2016-04-25 | 2016-12-21 | 广州市艾谱诺仪器设备有限公司 | A kind of intelligent used in aging of adsorption tubes instrument |
| CN206056262U (en) * | 2016-07-21 | 2017-03-29 | 姚华民 | A kind of quick heating cooling structure in thermal desorption pipe aging equipment |
| CN207716880U (en) * | 2018-01-03 | 2018-08-10 | 广州市中睿仪器有限公司 | Desorption pipe aging equipment with heating module and gas circuit control module |
| CN108514817A (en) * | 2018-06-27 | 2018-09-11 | 湘潭大学 | A kind of multifunction experiment apparatus of gaseous pollutant purification |
| CN209979451U (en) * | 2019-01-11 | 2020-01-21 | 北京博赛德科技有限公司 | Adsorption tube aging instrument |
-
2019
- 2019-01-11 CN CN201910025283.8A patent/CN109696394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311865A (en) * | 1997-05-09 | 1998-11-24 | Nec Corp | Burn-in test equipment |
| CN205826483U (en) * | 2016-04-25 | 2016-12-21 | 广州市艾谱诺仪器设备有限公司 | A kind of intelligent used in aging of adsorption tubes instrument |
| CN206056262U (en) * | 2016-07-21 | 2017-03-29 | 姚华民 | A kind of quick heating cooling structure in thermal desorption pipe aging equipment |
| CN207716880U (en) * | 2018-01-03 | 2018-08-10 | 广州市中睿仪器有限公司 | Desorption pipe aging equipment with heating module and gas circuit control module |
| CN108514817A (en) * | 2018-06-27 | 2018-09-11 | 湘潭大学 | A kind of multifunction experiment apparatus of gaseous pollutant purification |
| CN209979451U (en) * | 2019-01-11 | 2020-01-21 | 北京博赛德科技有限公司 | Adsorption tube aging instrument |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067370A (en) * | 2020-09-11 | 2020-12-11 | 上海朋环测控技术股份有限公司 | Adsorption tube aging instrument and method |
| CN112067370B (en) * | 2020-09-11 | 2024-05-10 | 上海朋环测控技术股份有限公司 | Adsorption tube aging instrument and method |
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