CN209416047U - A kind of tube furnace improving sample combustion efficiency - Google Patents
A kind of tube furnace improving sample combustion efficiency Download PDFInfo
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- CN209416047U CN209416047U CN201822144010.9U CN201822144010U CN209416047U CN 209416047 U CN209416047 U CN 209416047U CN 201822144010 U CN201822144010 U CN 201822144010U CN 209416047 U CN209416047 U CN 209416047U
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- tube furnace
- sample
- quartz ampoule
- furnace
- temperature
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000010453 quartz Substances 0.000 claims abstract description 55
- 239000003708 ampul Substances 0.000 claims abstract description 50
- 239000012159 carrier gas Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000009841 combustion method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- ORMNPSYMZOGSSV-UHFFFAOYSA-N dinitrooxymercury Chemical compound [Hg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ORMNPSYMZOGSSV-UHFFFAOYSA-N 0.000 description 2
- 229940093930 potassium iodate Drugs 0.000 description 2
- 239000001230 potassium iodate Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- JLKDVMWYMMLWTI-UHFFFAOYSA-M potassium iodate Chemical compound [K+].[O-]I(=O)=O JLKDVMWYMMLWTI-UHFFFAOYSA-M 0.000 description 1
- 235000006666 potassium iodate Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses a kind of tube furnaces that sample combustion efficiency can be improved.Including the furnace box with heated at constant temperature unit and temperature programming unit, the load sample quartz ampoule with loose and porous structure is the quartz ampoule of snakelike helical structure among the both ends horizontal of furnace box.Heated at constant temperature unit is first heated to test temperature when on-test, then load sample quartz ampoule is placed in temperature programming unit and is gradually heated to sample completely burned.Its advantage is that can solve current sample burn in tube furnace may because sample heating speed is too fast, tube furnace high temperature region heating time is too short burn it is insufficient, caused by measurement result deviate.
Description
Technical field
The utility model belongs to technical field of combustion equipment, and in particular to a kind of tube furnace for improving sample combustion efficiency.
Background technique
It in sample test and production process, often needs to use high temperature service and carrys out burning sample, absorbed and burnt with absorbing liquid
Gas afterwards tests certain constituent analyses therein, such as sulfur content, content of Cl element in petrochemicals.Sample
Product absorb the gas after burning with absorbing liquid after high temperature full combustion under carrier gas stream, then pass through titration, infrared, ion chromatography
Analysis means are waited to measure content therein.Such as GB/T 387-1990 " deep color petroleum product sulphur content determination method (tube furnace
Method) ", GB/T 5195.5-2017 " measurement tube furnace burning-Potassiumiodate titration of fluorite total sulfur content ", GB/T 223.68-
1997 " Potassiumiodate titration measuring sulfur contents after burning in steel and alloy analysis method tube furnace " and SN/T 4447-
2016 " measurement tube furnace burning-titration method by mercuric nitrate of chlorinity in woodwork " etc..The equipment price of tube furnace combustion method closes
Reason, testing cost is low, and it is more common test method that method popularity is high.
Sample burn in tube furnace it is whether sufficiently very big to the influence of test result, sample volume, sample heating speed
Degree, tubular type furnace temperature, tube furnace high-temperature area length etc. can all influence the burning degree of sample.Currently, in tube furnace combustion method
Sample is loaded using porcelain boat, is adsorbed with inert materials such as fine sands, then heats burning in tube furnace in carrier gas stream.Load sample porcelain
The opened type of boat designs so that shooting for sample is uncontrolled, is easy to detonation as heating speed is too fast, because sample combustion is insufficient
And cause result inaccurate.Tube furnace is mostly straight pipe type structure, by the restriction of instrument and equipment length, the high-temperature area of tube furnace
Limited, sample is too short in the high-temperature region residence time with carrier gas.In addition, current tube furnace is mostly all-in-one oven, load sample region and pipe
Formula furnace body temperature is consistent, and is be easy to cause because the excessively high sample of temperature quickly evaporates due to incomplete combustion.
Utility model content
The purpose of this utility model is to provide a kind of tube furnaces that sample combustion efficiency can be improved, and sample is enabled to exist
It burns in tube furnace more sufficiently, efficiency of combustion is higher.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of tube furnace improving sample combustion efficiency, including furnace box, load sample quartz ampoule and quartz ampoule, which is characterized in that
The furnace box is divided into two parts, is respectively as follows: heated at constant temperature unit furnace box and temperature programming unit furnace box, the load sample quartz ampoule tool
There is loose and porous structure, the quartz ampoule runs through the both ends of furnace box, and its horizontal interlude is snakelike helical structure.That is high temperature furnace
Body is made of temperature programming unit and heated at constant temperature unit, and temperature programming unit and heated at constant temperature unit all have temperature and adjust function
Can, it can the accurate temperature for controlling respective region.
A kind of tube furnace improving sample combustion efficiency, including tube furnace temperature programmed control unit (1), tube furnace heated at constant temperature
Unit (2), entrance quartz ampoule (3), snakelike spiral quartz ampoule (4), outlet quartz ampoule (5) and load sample quartz ampoule (6).
The tube furnace temperature programmed control unit (1) has the function of temperature programming, can increase furnace body temperature according to preset rate
Degree, and the temperature of furnace body in tube furnace temperature programmed control unit (1) can be precisely controlled.
The tube furnace heated at constant temperature unit (2) can be warming up to required temperature, and can be precisely controlled tube furnace heated at constant temperature
The temperature of furnace body in unit (2).
The entrance quartz ampoule (3) is located in tube furnace temperature programmed control unit (1).
The snakelike spiral quartz ampoule (4) and outlet quartz ampoule (5) are located in tube furnace heated at constant temperature unit (2).
The load sample quartz ampoule (6) has loose and porous structure, can load sample postpositive in entrance quartz ampoule (3), use
Temperature programming is used after loading sample.Load sample quartz ampoule (6) can be high temperature resistant ingredient: for silica sintering on quartz ampoule
Loose and porous structure substance, can also be the inert substance being filled in quartz ampoule, such as silica wool, fine sand, load sample quartz ampoule
Effect be adsorbable sample, in carrier gas stream with temperature raising slowly overflow.
Entrance quartz ampoule (3) communication with carrier gas, for carrying the gas for passing through and generating after tube furnace sample combustion, outlet
Quartz ampoule (5) is passed through tail gas absorption liquid.
The utility model has the beneficial effects that
The utility model proposes a kind of tube furnace that sample combustion efficiency can be improved.Firstly, loose porous with including
The load sample quartz ampoule of structure replaces porcelain boat to load sample, and sample heats in carrier gas stream, and the sample volatilized exists with carrier gas stream
It moves ahead in porous structure, is finally blown into full combustion in snakelike spiral quartz ampoule.Sample is avoided excessive to evaporate rapidly
Cause insufficient problem of burning.
Secondly, by tube furnace Proper Design at two modular units of temperature programming unit and heated at constant temperature unit, constant temperature adds
Hot cell is first to heat to required ignition temperature, then load sample quartz ampoule is placed in temperature programming unit and is gradually warmed up, and sample is in program
It is gradually heated to required ignition temperature in heating unit, it is insufficient to avoid the too fast caused sample combustion of heating speed.
Finally, the quartz ampoule of tube furnace is designed to that centre is the form of snakelike helix tube, in limited furnace cavity
Significantly increase the length of quartz ampoule high-temperature area, increase sample with when carrier gas in high-temperature area residence time,
Ensure sample in high-temperature area full combustion.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is a kind of structural schematic diagram for the tube furnace that sample combustion efficiency can be improved of the utility model；
Fig. 2 is the burning flow chart of tube furnace described in the utility model embodiment.
Specific embodiment
Fig. 1-2 combination following examples are please referred to be described in detail:
As shown in Figure 1, a kind of improvement tube furnace that sample combustion efficiency can be improved, including tube furnace temperature programmed control unit 1,
Tube furnace heated at constant temperature unit 2, entrance quartz ampoule 3, snakelike spiral quartz ampoule 4, outlet quartz ampoule 5 and load sample quartz ampoule 6.
Wherein load sample quartz ampoule 6 is placed in entrance quartz ampoule 3, and entrance quartz ampoule 3 is located at tube furnace temperature programmed control unit 1,
Snakelike spiral quartz ampoule 4, outlet quartz ampoule 5 are located in tube furnace heated at constant temperature unit 2.
The tube furnace temperature programmed control unit 1 has the function of temperature programming, can increase furnace body temperature according to regulation rate,
And the temperature of furnace body in tube furnace temperature programmed control unit 1 can be precisely controlled.
The tube furnace heated at constant temperature unit 2 can be warming up to required temperature, and can be precisely controlled tube furnace heated at constant temperature list
The temperature of furnace body in member 2.
As shown in Fig. 2, first leading to carrier gas when sample combustion, opens tube furnace heated at constant temperature unit 2 and is warming up to required temperature,
Sample is fitted into precision weighing in load sample quartz ampoule 6 again, load sample quartz ampoule 6 is placed in entrance quartz ampoule 3, in tube furnace program control
According to regulation rate heating in warm unit 1, finally it is warming up to mutually synthermal with tube furnace heated at constant temperature unit 2.Sample combustion produces
Raw gas through outlet quartz ampoule 5, which is passed through in absorbing liquid, to be absorbed, the component content in absorbing liquid to be measured.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of tube furnace for improving sample combustion efficiency, which is characterized in that including furnace box, load sample quartz ampoule and quartz ampoule, institute
It states furnace box and is divided into two parts, be respectively as follows: heated at constant temperature unit furnace box and temperature programming unit furnace box, the load sample quartz ampoule has
Loose and porous structure, the quartz ampoule runs through the both ends of furnace box, and its horizontal interlude is snakelike helical structure.
2. a kind of tube furnace for improving sample combustion efficiency according to claim 1, which is characterized in that including tube furnace journey
Sequence control temperature unit (1), tube furnace heated at constant temperature unit (2), entrance quartz ampoule (3), snakelike spiral quartz ampoule (4), outlet quartz
Manage (5) and load sample quartz ampoule (6).
3. a kind of tube furnace for improving sample combustion efficiency according to claim 1, which is characterized in that the entrance quartz
Pipe (3) is located in tube furnace temperature programmed control unit (1).
4. a kind of tube furnace for improving sample combustion efficiency according to claim 1, which is characterized in that snakelike spiral quartz
Pipe (4) and outlet quartz ampoule (5) are located in tube furnace heated at constant temperature unit (2).
5. a kind of tube furnace for improving sample combustion efficiency according to claim 1, which is characterized in that the load sample quartz
Managing (6) has loose and porous structure, can load sample postpositive in the entrance quartz ampoule (3), for loading temperature programming after sample
With.
6. a kind of tube furnace for improving sample combustion efficiency according to claim 1, which is characterized in that the entrance quartz
(3) communication with carrier gas is managed, for carrying the gas for passing through and generating after tube furnace sample combustion, outlet quartz ampoule (5) is passed through tail gas suction
Receive liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822144010.9U CN209416047U (en) | 2018-12-20 | 2018-12-20 | A kind of tube furnace improving sample combustion efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822144010.9U CN209416047U (en) | 2018-12-20 | 2018-12-20 | A kind of tube furnace improving sample combustion efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209416047U true CN209416047U (en) | 2019-09-20 |
Family
ID=67939490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822144010.9U Active CN209416047U (en) | 2018-12-20 | 2018-12-20 | A kind of tube furnace improving sample combustion efficiency |
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| Country | Link |
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| CN (1) | CN209416047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373762A (en) * | 2018-12-20 | 2019-02-22 | 辽宁省产品质量监督检验院（辽宁省建筑材料监督检验院） | A kind of tube furnace and its method improving sample combustion efficiency |
| CN112881610A (en) * | 2021-01-20 | 2021-06-01 | 北京大学深圳研究生院 | Volatile organic compound detection and quality control device and method |
-
2018
- 2018-12-20 CN CN201822144010.9U patent/CN209416047U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373762A (en) * | 2018-12-20 | 2019-02-22 | 辽宁省产品质量监督检验院（辽宁省建筑材料监督检验院） | A kind of tube furnace and its method improving sample combustion efficiency |
| CN112881610A (en) * | 2021-01-20 | 2021-06-01 | 北京大学深圳研究生院 | Volatile organic compound detection and quality control device and method |
| CN112881610B (en) * | 2021-01-20 | 2023-10-17 | 北京大学深圳研究生院 | Volatile organic compound detection quality control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221027 Address after: 110000 No.61 Chongshan East Road, Huanggu District, Shenyang City, Liaoning Province Patentee after: Liaoning Provincial Inspection and Testing Certification Center Address before: 110000 No.61 Chongshan East Road, Huanggu District, Shenyang City, Liaoning Province Patentee before: LIAONING PROVINCE PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE (LIAONING CONSTRUCTION MATERIALS SUPERVISION AND INSPECTION INSTITUTE) |
|
| TR01 | Transfer of patent right | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: North Dalian Analytical Instrument Co.,Ltd. Assignor: Liaoning Provincial Inspection and Testing Certification Center Contract record no.: X2023210000274 Denomination of utility model: A tube furnace for improving sample combustion efficiency Granted publication date: 20190920 License type: Common License Record date: 20231130 |
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| EE01 | Entry into force of recordation of patent licensing contract |