CN112964751A - Double-layer combustion tube for total organic carbon analyzer - Google Patents
Double-layer combustion tube for total organic carbon analyzer Download PDFInfo
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- CN112964751A CN112964751A CN202110158046.6A CN202110158046A CN112964751A CN 112964751 A CN112964751 A CN 112964751A CN 202110158046 A CN202110158046 A CN 202110158046A CN 112964751 A CN112964751 A CN 112964751A
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- combustion
- combustion tube
- burner
- pipe
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 141
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 5
- 239000002355 dual-layer Substances 0.000 claims 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 150000003839 salts Chemical class 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000012159 carrier gas Substances 0.000 description 6
- 239000000306 component Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000029087 digestion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/24—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures using combustion tubes, e.g. for microanalysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Abstract
The invention relates to the technical field of water quality detection, in particular to a double-layer combustion tube for a total organic carbon analyzer2The efficiency of the test is improved, and the test efficiency and the test stability are improved; the amount of the catalyst generated by the salt stain on the periphery of the tube wall of the external combustion tube is greatly reduced, so that the frequency of the external combustion tube needing to be disassembled and replaced is greatly reduced in the same service cycle, and only the internal combustion tube needs to be disassembled and washed regularly; the clamping sleeve component used for fixing the internal and external combustion tubes comprises a clamping sleeve seat and a clamping sleeve cover detachably connected with the clamping sleeve seat, and a sealing ring is arranged between the clamping sleeve seat and the clamping sleeve cover, so that double layers are facilitatedAnd (4) mounting and dismounting the combustion pipe.
Description
Technical Field
The invention relates to the technical field of water quality detection, in particular to a double-layer combustion tube for a total organic carbon analyzer.
Background
Total Organic Carbon (TOC) is determined by a special instrument, namely a total organic carbon analyzer (hereinafter referred to as TOC analyzer), and the TOC analyzer has the advantages of simple flow, good reproducibility, high sensitivity, stability and reliability, no chemical consumption in the determination process, basically no secondary pollution, complete oxidation and the like.
Water TOC is generally classified into dry, wet and direct conductivity processes
And (3) dry method: mainly comprises heating the cracking furnace at high temperature (filling the catalyst in advance and heating to 800 ℃) to decompose organic matters in the sample into CO2Therefore, the method achieves the purpose of detection, is generally suitable for detecting high concentration of organic matters, and is generally used for monitoring water body pollution or sewage discharge.
At present, a combustion tube, which is a core component for dry test, is of a single-layer glass structure, a catalyst is placed at the bottom of the combustion tube to perform chemical reaction with a test water sample, and organic matters are decomposed into CO in the high-temperature digestion process2However, under a long-term high temperature of the combustion tube, the catalyst may generate salt stains on the glass wall of the combustion tube, which affects the reaction effect of the catalyst and the test sample and causes unstable test results, so the combustion tube needs to be disassembled and acid-soaked for cleaning after being used for a certain time. The fixing mode of the existing combustion tube is that a fixing block is respectively arranged at the tail part of a combustion tube head, and the positioning is carried out in a mode that two ends of the combustion tube head encircle and are pressed up and down, so that the actual disassembly process is very difficult, which is not expected by the technology in the field.
Disclosure of Invention
Because prior art has above-mentioned defect, the total for organic carbon analyzer double-deck burner that this application provided, its aim at optimizes current burner module, solves the defect of current burner.
In order to achieve the technical purpose, the following technical scheme is adopted in the application:
a double-layer combustion tube for a total organic carbon analyzer, comprising: the burner comprises a clamping sleeve assembly, an inner combustion tube and an outer combustion tube sleeved outside the inner combustion tube;
the length of the inner combustion tube is less than the length of the outer combustion tube;
a cover plate is arranged at the pipe orifice of the inner combustion pipe, the diameter of the cover plate is larger than the inner diameter of the pipe orifice end of the outer combustion pipe, and the cover plate is clamped on the pipe orifice end surface of the outer combustion pipe;
the cutting sleeve component comprises a cutting sleeve seat and a cutting sleeve cover detachably connected with the cutting sleeve seat, a sealing ring is arranged between the cutting sleeve seat and the cutting sleeve cover, the cutting sleeve component is arranged at the pipe orifice end of the external combustion pipe through the sealing ring sealing sleeve, a sample feeding device is arranged on the cutting sleeve component, and the sample feeding device penetrates through the cover plate and is communicated with the inner cavity of the internal combustion pipe;
the inside combustion tube with all be provided with the catalyst in the outside combustion tube, the lateral wall and the bottom of inside combustion tube all are provided with the row and overflow mouthful, just inside year gas port has been seted up on the inside combustion tube, the silica gel hose is connected through output pipeline in the bottom of outside combustion tube, outside year gas port has been seted up on the outside combustion tube.
Preferably, the clamping sleeve seat is of a cylinder structure, an annular step is arranged on the periphery of the inner wall of the bottom of the cylinder structure, an internal thread is arranged on the cylinder structure, and the internal thread extends from the top of the cylinder structure to the annular step from the internal thread;
the bottom of the clamping sleeve cover is provided with a groove structure, the inner diameter of the groove structure is matched with the outer diameter of the external combustion pipe, and the outer wall of the groove structure is provided with an external thread matched with the internal thread;
the seal ring is arranged between the groove structure and the annular step.
Preferably, the sample injection device is a sample injection needle.
Preferably, the output pipe and the outer combustion pipe are made of the same material, and the output pipe and the outer combustion pipe are integrally formed.
Preferably, the inner and outer air ports correspond in position.
Preferably, the diameter of the mouth end of the outer burner tube is smaller than the diameter of the bottom end of the tube.
Preferably, the distance between the tube bottom end of the inner combustion tube and the tube bottom end of the outer combustion tube is greater than 10 mm.
Preferably, the inner combustion pipe and the inner combustion pipe are made of glass.
Compared with the prior art, the invention has the following advantages or beneficial effects:
the double-layer combustion pipe comprises an inner combustion pipe and an outer combustion pipe sleeved outside the inner combustion pipe, catalysts are arranged in the inner combustion pipe and the outer combustion pipe, and when the double-layer combustion pipe is used, a test water sample firstly enters the inner combustion pipe and reacts with the catalysts in the inner combustion pipe to generate CO2The rest of the unreacted test water sample flows into the external combustion pipe to react again to generate CO2, the reaction is more complete, and compared with a single-layer combustion pipe, the device has the advantages that the capacity of the catalyst in the combustion pipe can be effectively increased, and the decomposition of organic matters in the water sample into CO2 is improved2The efficiency of the test is greatly improved, and the test efficiency and the test stability are greatly improved; and the amount of the catalyst generated by the salt stain on the periphery of the glass wall of the external combustion tube can be greatly reduced, so that the frequency of the external combustion tube needing to be disassembled and replaced can be greatly reduced in the same service cycle, and only the internal combustion tube needs to be disassembled and cleaned regularly, so that the replacement frequency of the combustion tube is reduced.
Two, be used for fixed inside and outside burning tube's cutting ferrule subassembly through setting up include cutting ferrule seat and the cutting ferrule lid that links together with cutting ferrule seat detachably, and be provided with the sealing washer between cutting ferrule seat and the cutting ferrule lid, the cutting ferrule subassembly is located the nose end of outside burning tube through the sealing washer seal cover and is sealed with the mouth of pipe with outside burning tube to be convenient for install and dismantle, can effectively improve the portability that burning tube later stage washd and maintain from the assembling nature moreover.
Drawings
FIG. 1 is a sectional view of a double-layered combustion tube for a total organic carbon analyzer in an example of the present application;
FIG. 2 is an enlarged schematic view at I of FIG. 1;
FIG. 3 is a front view of an inner burner tube in an embodiment of the subject application;
FIG. 4 is a rear view of an inner burner tube according to an embodiment of the subject application;
FIG. 5 is a bottom view of the inner burner tube in an embodiment of the subject application;
FIG. 6 is a front view of an outer burner tube in an embodiment of the subject application;
FIG. 7 is a side view of an outer burner tube in an embodiment of the present application.
Detailed Description
The invention will be further described with reference to the following drawings and specific examples, which are not intended to limit the invention thereto.
Fig. 1 to 7 are schematic views illustrating an embodiment of the present application. This embodiment is a double-deck combustion tube for total organic carbon analysis appearance, specifically, this double-deck combustion tube includes: the burner comprises a clamping sleeve assembly, an inner combustion tube 1 and an outer combustion tube 2 sleeved outside the inner combustion tube 1; the length of the inner burner tube 1 is less than the length of the outer burner tube 2; a cover plate 11 is arranged at the pipe orifice of the inner combustion pipe 1, the diameter of the cover plate 11 is larger than the inner diameter of the pipe orifice end of the outer combustion pipe 2, and the cover plate 11 is clamped on the pipe orifice end surface of the outer combustion pipe 2; the cutting sleeve component comprises a cutting sleeve seat 7 and a cutting sleeve cover 5 which is detachably connected with the cutting sleeve seat 7, a sealing ring 7 is arranged between the cutting sleeve seat 7 and the cutting sleeve cover 5, the cutting sleeve component is hermetically sleeved at the tube orifice end of the external combustion tube 2 through the sealing ring 7, a sample injection needle 4 is arranged on the cutting sleeve component, and the sample injection needle 4 passes through a sample injection port 111 of a cover plate 11 and is communicated with the inner cavity of the internal combustion tube 1; the inside combustion tube 1 and the outside combustion tube 2 are both provided with a catalyst 8, the side wall and the bottom of the inside combustion tube 1 are both provided with overflow ports (specifically, the upper part of the side wall is provided with a gas overflow port 13, the lower part of the side wall is provided with a gas overflow port 14, the bottom of the inside combustion tube is provided with a gas-liquid overflow port 15), the inside combustion tube 1 is provided with an inside gas carrying port 12, the bottom of the outside combustion tube 2 is connected with a silica gel hose 3 through an output pipeline 22, and the silica gel hose 3 is communicated with the inner cavity of the outside combustion tube 2; the external combustion pipe 2 is provided with an external air carrying port 21; when the device is used, a test water sample firstly enters the bottom of the internal combustion tube 1 to react with the catalyst 8 to generate CO2The rest unreacted test water sample flows into the bottom of the external combustion pipe 2 from the bottom or the side overflow port of the internal combustion pipe 1 to react with the catalyst 8 at the bottom of the external combustion pipe 2 again to generate CO2Utilizing most of the CO currently available in this structure2Will be chemically decomposed in the inner combustion tube 1 and only remainLeave the less complete test sample of decomposing and carry out 2 decompositions with catalyst 8 in the outside combustion tube 2, compare before with like this, the catalyst 8 of outside combustion tube 2 and the peripheral salt stain quantity that produces of combustion tube glass wall have a decline by a wide margin, and the structure of inside combustion tube 1 design at present is very convenient for detach, so in same life cycle, the frequency that outside combustion tube 2 need demolish the change also can reduce by a wide margin, only need regularly unpick and wash inside combustion tube 1 can, and the combustion tube that utilizes this kind of structure is because there is the effect of catalyst 8 in the double-deck combustion tube, so the test water sample can obtain more abundant chemistry and clear up, test stability has been improved by a wide margin.
In a preferred embodiment of the present invention, the above-mentioned bayonet socket 7 is a cylindrical structure, an annular step is provided around the inner wall of the bottom of the cylindrical structure, and the cylindrical structure is provided with an internal thread, and the internal thread extends from the top of the cylindrical structure to the annular step; the bottom of the cutting sleeve cover 5 is provided with a groove structure with the inner diameter matched with the outer diameter of the external combustion pipe, and the outer wall of the groove structure is provided with an external thread matched with the internal thread; the sealing ring 7 is arranged between the groove structure and the annular step; the sealing ring 7 is fixed on the annular step of the cylinder structure by screwing the clamping sleeve cover 5 on the clamping sleeve seat 7, and gas-liquid sealing is carried out by utilizing the interference fit of the inner ring of the O-shaped sealing ring 7 and the outer wall of the external combustion pipe 2.
In a preferred embodiment of the invention, the inner carrier gas port 12 and the outer carrier gas port 21 are positioned to facilitate the introduction of carrier gas into the inner and outer combustion tubes.
In a preferred embodiment of the present invention, the diameter of the mouth end of the outer combustion pipe 2 is smaller than the diameter of the bottom end of the pipe, so that there is a sufficient space in the outer combustion pipe 2 at the bottom of the double-layered combustion pipe.
In a preferred embodiment of the invention, the distance between the tube bottom end of the inner burner tube and the tube bottom end of the outer burner tube is more than 10mm, so that there is enough space inside the outer burner tube 2 to place the catalyst 8.
In a preferred embodiment of the present invention, the inner combustion pipe 1 and the inner combustion pipe 1 are made of glass.
Specifically, in the embodiment of the present invention, the main digestion loop of the test water sample is as follows:
firstly, a test water sample can enter the inner cavity of the internal combustion tube 1 through the sampling needle 4 to react with the catalyst 8 in the internal combustion tube 1, and under the combustion of high temperature, most organic matters in the test water sample can be digested into CO2CO formed2Flows into the outer combustion pipe 2 from the gas discharge and overflow port 13 and the gas discharge and overflow port 14 of the inner combustion pipe 1, and finally is output from the gas outlet of the outer combustion pipe 2 through the silica gel hose 3, and in parallel with the output of the outer combustion pipe 2, oxygen (as reaction carrier gas) passes through the outer carrier gas port 21 and the inner carrier gas port 12 to accelerate the overall reaction speed.
The water sample secondary digestion loop is as follows:
the test water sample or gas which is not digested enters the outer combustion tube 2 from the gas-liquid overflow port 15 of the inner combustion tube 1 to react with the catalyst 8 at the bottom of the outer combustion tube to generate CO2And then the gas is output from the gas outlet of the external combustion tube 2 through a silica gel hose 3.
In a specific embodiment of the present invention, the fixing and detaching process of the inner combustion pipe 1 is as follows:
firstly, the ferrule assembly is assembled, an O-shaped sealing ring 7 is placed on an annular step of a ferrule base 7, and the O-shaped sealing ring 7 is tightly pressed and fixed on the annular step by utilizing the external thread at the edge of the groove of the ferrule cover 5 and the internal thread inside the ferrule base 7 to be screwed and sealed.
Secondly, the inner and outer combustion pipes are preliminarily fixed, namely the inner combustion pipe 1 is inserted into the pipe orifice of the outer combustion pipe 2, and the inner combustion pipe 1 and the outer combustion pipe 2 are preliminarily fixed by utilizing the step of the head cover plate 11 of the inner combustion pipe 1 to form an inner and outer combustion pipe assembly.
Then, the clamping sleeve assembly and the combustion tube assembly-clamping sleeve assembly are sleeved outside the cover plate 11 and the external combustion tube 2 from the head parts of the internal combustion tube assembly and the external combustion tube assembly and are pressed tightly, and gas-liquid sealing is carried out by utilizing the interference fit of the inner ring of the O-shaped sealing ring 7 and the outer wall of the external combustion tube 2.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described herein in detail. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (8)
1. A double-layer combustion tube for a total organic carbon analyzer is characterized by comprising: the burner comprises a clamping sleeve assembly, an inner combustion tube and an outer combustion tube sleeved outside the inner combustion tube;
the length of the inner combustion tube is less than the length of the outer combustion tube;
a cover plate is arranged at the pipe orifice of the inner combustion pipe, the diameter of the cover plate is larger than the inner diameter of the pipe orifice end of the outer combustion pipe, and the cover plate is clamped on the pipe orifice end surface of the outer combustion pipe;
the cutting sleeve component comprises a cutting sleeve seat and a cutting sleeve cover detachably connected with the cutting sleeve seat, a sealing ring is arranged between the cutting sleeve seat and the cutting sleeve cover, the cutting sleeve component is arranged at the pipe orifice end of the external combustion pipe through the sealing ring sealing sleeve, a sample feeding device is arranged on the cutting sleeve component, and the sample feeding device penetrates through the cover plate and is communicated with the inner cavity of the internal combustion pipe;
the inside combustion tube with all be provided with the catalyst in the outside combustion tube, the lateral wall and the bottom of inside combustion tube all are provided with the row and overflow mouthful, just inside year gas port has been seted up on the inside combustion tube, the silica gel hose is connected through output pipeline in the bottom of outside combustion tube, just outside year gas port has been seted up on the outside combustion tube.
2. The dual-layer combustion tube for a total organic carbon analyzer according to claim 1, wherein the clamping sleeve seat is a cylindrical structure, an annular step is arranged on the bottom inner wall of the cylindrical structure for one circle, an internal thread is arranged on the cylindrical structure, and the internal thread extends from the top of the cylindrical structure to the annular step;
the bottom of the clamping sleeve cover is provided with a groove structure, the inner diameter of the groove structure is matched with the outer diameter of the external combustion pipe, and the outer wall of the groove structure is provided with an external thread matched with the internal thread;
the seal ring is arranged between the groove structure and the annular step.
3. The dual-layer combustion tube for a total organic carbon analyzer according to claim 1, wherein the sample injection device is a sample injection needle.
4. The dual burner of claim 1, wherein the output duct and the outer burner are made of the same material, and the output duct and the outer burner are integrally formed.
5. The dual burner tube for a total organic carbon analyzer according to claim 1, wherein the inner gas carrying port and the outer gas carrying port are positioned to correspond to each other.
6. The dual burner tube for a total organic carbon analyzer according to claim 1, wherein a diameter of a tube mouth end of the outer burner tube is smaller than a diameter of a tube bottom end.
7. The dual burner tube for a total organic carbon analyzer according to claim 1, wherein a distance between a tube bottom end of the inner burner tube and a tube bottom end of the outer burner tube is greater than 10 mm.
8. The dual burner for a total organic carbon analyzer according to claim 1, wherein the inner burner and the inner burner are made of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110158046.6A CN112964751A (en) | 2021-02-05 | 2021-02-05 | Double-layer combustion tube for total organic carbon analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110158046.6A CN112964751A (en) | 2021-02-05 | 2021-02-05 | Double-layer combustion tube for total organic carbon analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112964751A true CN112964751A (en) | 2021-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110158046.6A Pending CN112964751A (en) | 2021-02-05 | 2021-02-05 | Double-layer combustion tube for total organic carbon analyzer |
Country Status (1)
| Country | Link |
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| CN (1) | CN112964751A (en) |
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|---|---|---|---|---|
| JPH02120060U (en) * | 1989-03-14 | 1990-09-27 | ||
| CN1365002A (en) * | 2001-01-18 | 2002-08-21 | 中国石油化工股份有限公司 | Burning tube for element analyzer |
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| CN106323730A (en) * | 2015-07-07 | 2017-01-11 | 泰州德谱分析仪器科技有限公司 | Special quartz cracking tube for off-line gas analysis |
| CN206573344U (en) * | 2016-08-22 | 2017-10-20 | 江苏新锐环境监测有限公司 | A kind of burner of the adsorbable halogen of water quality detection |
| CN109580327A (en) * | 2018-12-17 | 2019-04-05 | 北矿检测技术有限公司 | Pyrohydrolysis combustion tube |
| CN109709079A (en) * | 2017-10-26 | 2019-05-03 | 中国石油化工股份有限公司 | A kind of ultraviolet fluorescence method measures combustion tube and the application of minim total sulfur content |
| CN110231433A (en) * | 2019-07-18 | 2019-09-13 | 杭州广测环境技术有限公司 | A kind of water quality detection burner |
| CN211402276U (en) * | 2019-11-29 | 2020-09-01 | 苏州埃兰分析仪器有限公司 | High-salt-resistant sample combustion tube |
| CN211826022U (en) * | 2020-01-16 | 2020-10-30 | 湖南三德科技股份有限公司 | Reagent fills subassembly and elemental analysis appearance |
| CN112098587A (en) * | 2019-06-18 | 2020-12-18 | 耶拿分析仪器股份公司 | Reaction tube for elemental analysis |
| CN212255034U (en) * | 2020-02-26 | 2020-12-29 | 中国科学院南京地理与湖泊研究所 | Combustion tube device of total organic carbon analyzer |
-
2021
- 2021-02-05 CN CN202110158046.6A patent/CN112964751A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02120060U (en) * | 1989-03-14 | 1990-09-27 | ||
| CN1365002A (en) * | 2001-01-18 | 2002-08-21 | 中国石油化工股份有限公司 | Burning tube for element analyzer |
| CN101196500A (en) * | 2007-12-29 | 2008-06-11 | 湖南三德科技发展有限公司 | Gas analyzer with split type stove agent tube |
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| CN106323730A (en) * | 2015-07-07 | 2017-01-11 | 泰州德谱分析仪器科技有限公司 | Special quartz cracking tube for off-line gas analysis |
| CN206573344U (en) * | 2016-08-22 | 2017-10-20 | 江苏新锐环境监测有限公司 | A kind of burner of the adsorbable halogen of water quality detection |
| CN109709079A (en) * | 2017-10-26 | 2019-05-03 | 中国石油化工股份有限公司 | A kind of ultraviolet fluorescence method measures combustion tube and the application of minim total sulfur content |
| CN109580327A (en) * | 2018-12-17 | 2019-04-05 | 北矿检测技术有限公司 | Pyrohydrolysis combustion tube |
| CN112098587A (en) * | 2019-06-18 | 2020-12-18 | 耶拿分析仪器股份公司 | Reaction tube for elemental analysis |
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| CN212255034U (en) * | 2020-02-26 | 2020-12-29 | 中国科学院南京地理与湖泊研究所 | Combustion tube device of total organic carbon analyzer |
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