CN109444325B - Steam sleeve and element analyzer - Google Patents
Steam sleeve and element analyzer Download PDFInfo
- Publication number
- CN109444325B CN109444325B CN201811593636.6A CN201811593636A CN109444325B CN 109444325 B CN109444325 B CN 109444325B CN 201811593636 A CN201811593636 A CN 201811593636A CN 109444325 B CN109444325 B CN 109444325B
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- Prior art keywords
- pipeline
- steam
- main body
- pipeline main
- pipe
- Prior art date
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 15
- 239000010453 quartz Substances 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 12
- 239000001301 oxygen Substances 0.000 abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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 discloses a steam sleeve, which comprises a pipeline main body, an air inlet pipeline and an air outlet pipeline, wherein the air inlet pipeline is arranged on the outer wall of the pipeline main body, the air inlet pipeline is communicated with the interior of the pipeline main body, the air outlet pipeline is arranged on the inner wall of the pipeline main body, the air outlet pipeline is communicated with the air inlet pipeline, and the outlet direction of the air outlet pipeline faces to one side of a combustion pipe. Compared with the prior art, the steam sleeve provided by the invention has the advantages that the contact of the steam and the top end of the pipeline main body is avoided, the condition that the steam is condensed due to cold and hot contact is avoided, and the condition that the quartz boat is cracked due to the fact that high-temperature oxygen carrying a coal sample encounters condensed water is also avoided, so that the service life of the quartz boat is prolonged.
Description
Technical Field
The invention relates to the technical field of coal sample analysis, in particular to a steam sleeve and an elemental analyzer. In addition, the invention also relates to an elemental analyzer comprising the steam sleeve.
Background
The coal can generate a large amount of fluorine and chlorine in the combustion process, wherein the fluorine and the chlorine are elements harmful to human bodies, and the fluorine is almost completely converted into volatile substances to be discharged into the atmosphere, so that environmental pollution is caused; and the release of chlorine can cause problems such as corrosion of pipelines, boiler skinning and the like. With the continuous enhancement of national environmental awareness, the determination of fluorine and chlorine content in coal has received close attention from more and more departments, including the environmental protection department.
The fluorine and chlorine element analyzer in the current market mainly comprises a combustion tube, a high-temperature furnace, a lofting box, a sample feeding mechanism, a gas supply device, a water vapor generator and other parts. In order to facilitate disassembly and assembly, a steam sleeve is usually added between the combustion tube and the lofting box, steam generated by the steam generator is conveyed into the steam sleeve through a pipeline, and along with oxygen gas flow introduced by the gas supply device, the steam is brought into the combustion tube to burn and measure a coal sample. The structure of the existing steam sleeve is in a structure form that steam enters from the bottom, one end of the steam sleeve is connected with a high-temperature furnace, the other end of the steam sleeve is connected with a lofting box, but in the existing analyzer, after the steam with certain pressure enters the steam sleeve through an air inlet pipe, the steam enters the top of the inner wall and is condensed into water drops, the water drops are more and more, the water drops drop down to a certain amount and are collected, and finally the water drops are collected at the bottom of the sleeve; the quartz boat comes out of the high temperature area and is subjected to condensation water, sudden heating and quenching, and easy to burst; quartz sand on the surface of a coal sample in the crucible can be blown out by oxygen and falls into the steam generator through the air inlet at the bottom of the steam sleeve, so that the experiment is influenced.
Therefore, how to provide a method for preventing water vapor from condensing into water in a steam sleeve and improving the service life of a quartz boat is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a steam sleeve and an element analyzer, wherein before a coal sample of a quartz boat enters a combustion tube, water vapor and the coal sample are conveyed in different channels, so that the water vapor is prevented from condensing, the problem that the coal sample cannot fall onto the quartz boat due to condensation of the water vapor is solved, and the service life of the quartz boat is ensured.
Another object of the present invention is to provide an elemental analyzer comprising the steam jacket as described above, such that the steam and the coal sample are transported in different channels, ensuring that the steam does not condense.
In order to solve the technical problems, the invention provides a steam sleeve and an elemental analyzer, which comprises a pipeline main body, an air inlet pipeline and an air outlet pipeline, wherein the air inlet pipeline is arranged on the outer wall of the pipeline main body and is communicated with the inside of the pipeline main body, the air outlet pipeline is arranged on the inner wall of the pipeline main body, the air outlet pipeline is communicated with the air inlet pipeline, and the outlet direction of the air outlet pipeline faces to one side of a combustion pipe.
Preferably, the outlet pipe is axially disposed along the pipe body.
Preferably, the inner wall of the air outlet pipe is provided with a hydrophobic layer.
Preferably, the width of the outlet pipe decreases from the outlet direction to the inlet direction of the outlet pipe.
Preferably, the air intake duct is disposed perpendicularly to the duct body.
Preferably, the pipeline main body is a hollow revolving body structure.
Preferably, the end of the pipe body is provided with an annular bayonet for mounting with a burner tube.
An elemental analyzer comprises a steam jacket, wherein the steam jacket is any one of the steam jackets.
The invention provides a steam sleeve, which mainly comprises a pipeline main body, an air inlet pipeline and an air outlet pipeline, wherein the air inlet pipeline is arranged on the outer wall of the pipeline main body, the air inlet pipeline is communicated with the interior of the pipeline main body, the air outlet pipeline is arranged on the inner wall of the pipeline main body, the air outlet pipeline is communicated with the air inlet pipeline, and the outlet direction of the air outlet pipeline faces to one side of a combustion pipe. Compared with the prior art, the steam sleeve provided by the invention has the advantages that the contact of the steam and the top end of the pipeline main body is avoided, the condition that the steam is condensed due to cold and hot contact is avoided, and the condition that the quartz boat is cracked due to the fact that high-temperature oxygen carrying a coal sample encounters condensed water is also avoided, so that the service life of the quartz boat is prolonged.
The elemental analyzer provided by the invention comprises the steam sleeve, so that the steam and the coal sample are conveyed in different channels, and the steam is ensured not to be condensed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along section A-A of FIG. 1;
FIG. 3 is a cross-sectional view of section B-B of FIG. 2;
fig. 4 is a schematic diagram of the overall structure of an elemental analyzer according to the present invention.
Wherein, in fig. 1-4:
the pipeline comprises a pipeline main body-1, an air inlet pipeline-2, an air outlet pipeline-3 and an annular bayonet-4.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, fig. 1 is a schematic overall structure of an embodiment of the present invention; FIG. 2 is a cross-sectional view taken along section A-A of FIG. 1; FIG. 3 is a cross-sectional view of section B-B of FIG. 2; fig. 4 is a schematic diagram of the overall structure of an elemental analyzer according to the present invention.
In one embodiment of the present invention, the steam jacket and the elemental analyzer mainly include a pipe body 1, an air inlet pipe 2 and an air outlet pipe 3, the air inlet pipe 2 is disposed on an outer wall of the pipe body 1, the air inlet pipe 2 is communicated with an inside of the pipe body 1, the air outlet pipe 3 is disposed on an inner wall of the pipe body 1, the air outlet pipe 3 is communicated with the air inlet pipe 2, and an outlet direction of the air outlet pipe 3 is directed to one side of the combustion pipe.
One end of the pipeline main body 1 is connected with a quartz boat coal sample laying-out box, and the other end of the pipeline main body is connected with a combustion pipe for conveying the quartz boat coal sample to a channel of the combustion pipe; the air inlet pipeline 2 is arranged at the position close to the top end of the outer side wall of the pipeline main body 1 and is communicated with the pipeline main body 1, and the bottom end of the air inlet pipeline 2 is connected with the steam generator; the gas outlet pipeline 3 is an interlayer pipeline, the gas outlet pipeline 3 is arranged on the inner wall of the inside of the pipeline main body 1 and is communicated with the gas inlet pipeline 2, the other end of the gas outlet pipeline 3 is communicated to the combustion pipe, and the gas inlet pipeline 2 and the gas outlet pipeline 3 are used for conveying water vapor to a channel of the combustion pipe together.
Specifically, during the actual coal sample combustion experiment process, water vapor generated by the water vapor generator is conveyed to an interlayer pipeline of an air outlet pipeline 3 in the pipeline main body 1 through the air inlet pipeline 2 and then enters the pipeline main body 1; meanwhile, oxygen is released through the oxygen tank, passes through the pressure reducing valve, the oxygen valve, the flowmeter and the feeding Yang Zujian, carries the coal sample on the quartz boat in the coal sample lofting box, enters the pipeline main body 1, and finally directly brings water vapor in the pipeline main body 1 into the combustion tube along with the oxygen gas flow carrying the coal sample to burn the coal sample so as to measure the fluorine and chlorine content in the coal sample.
In order to optimize the advantages that the steam sleeve in the embodiment can ensure that condensed water can not appear and experimental data are more accurate, the air outlet pipeline 3 is axially arranged along the pipeline main body 1, and the air inlet pipeline 2 is vertically arranged with the pipeline main body 1; because the steam generated by the steam generator finally flows to the combustion pipe through the pipeline main body 1, the steam is buffered with the air outlet pipeline 3 which is vertically arranged on the pipeline main body 1 before reaching the air outlet pipeline 3 in the flowing process, the flowing of the steam can be slowed down, the coal sample can be fully combusted, and more accurate experimental data can be obtained.
Further, the width of the outlet pipe 3 decreases from the outlet direction of the outlet pipe 3 to the inlet direction. The design can ensure that the water vapor flows in a form of fast before slow in the flowing process, the water vapor pipeline bend is fast at first, condensed water is prevented from being caused by overlong contact time with external low temperature, and the water vapor pipeline bend is slow later, so that oxygen carrying a coal sample in the pipeline main body 1 can be fully mixed with the water vapor, the coal sample is combusted more thoroughly, and measured data are more accurate. Of course, the width of the air outlet pipeline 3 can be the same, and the uniform speed is realized in the steam flowing process, so that the oxygen carrying the coal sample from the pipeline main body 1 can be fully mixed with the steam.
Further, the pipe body 1 is a hollow revolution structure. The hollow rotary body structure can ensure that the oxygen flow effect of carrying the coal sample is better, the coal sample and the oxygen can be fully mixed in the flow process, and meanwhile, the coal sample and the oxygen can be fully mixed after being contacted with water vapor, so that the thoroughness of the combustion reaction in the combustion tube is ensured, and the experimental measurement data is more accurate.
Further, the end of the pipe body 1 is provided with an annular bayonet 4 for mounting with a burner tube. The pipeline main body 1 is connected with the combustion pipe through the annular bayonet 4 in a buckling manner, so that the assembly and disassembly are convenient, and convenience is brought to maintenance and repair.
In addition to the steam jacket, the present invention further provides an elemental analyzer including the steam jacket disclosed in the foregoing embodiment, and the structure of each other portion of the elemental analyzer is referred to the prior art, and will not be described in detail.
In summary, the steam jacket provided in this embodiment mainly includes a pipe body, an air inlet pipe and an air outlet pipe, the air inlet pipe is disposed on the outer wall of the pipe body, and the air inlet pipe is communicated with the inside of the pipe body, the air outlet pipe is disposed on the inner wall of the pipe body, the air outlet pipe is communicated with the air inlet pipe, and the outlet direction of the air outlet pipe faces to one side of the combustion pipe. Compared with the prior art, the steam sleeve provided by the invention has the advantages that the contact of the steam and the top end of the pipeline main body is avoided, the condition that the steam is condensed due to cold and hot contact is avoided, and the condition that the quartz boat is cracked due to the fact that high-temperature oxygen carrying a coal sample encounters condensed water is also avoided, so that the service life of the quartz boat is prolonged.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a steam jacket, its characterized in that, includes pipeline main part (1), admission line (2) and gives vent to anger pipeline (3), admission line (2) set up in on the outer wall of pipeline main part (1), just admission line (2) with pipeline main part (1) inside intercommunication, give vent to anger pipeline (3) set up in on the inner wall of pipeline main part (1), give vent to anger pipeline (3) with admission line (2) intercommunication, just the exit direction of admission line (3) is towards combustion tube one side, admission line (3) are followed pipeline main part (1) axial setting, the width of admission line (3) by the exit direction of admission line (3) is progressively reduced to the import direction, admission line (2) with pipeline main part (1) set up perpendicularly.
2. A steam jacket according to claim 1, characterized in that the pipe body (1) is a hollow revolution structure.
3. A steam jacket pipe according to claim 2, characterized in that the end of the pipe body (1) is provided with an annular bayonet (4) for mounting with a burner pipe.
4. An elemental analyzer comprising a steam jacket, wherein the steam jacket is the steam jacket of any of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593636.6A CN109444325B (en) | 2018-12-25 | 2018-12-25 | Steam sleeve and element analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593636.6A CN109444325B (en) | 2018-12-25 | 2018-12-25 | Steam sleeve and element analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109444325A CN109444325A (en) | 2019-03-08 |
| CN109444325B true CN109444325B (en) | 2024-04-05 |
Family
ID=65537883
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811593636.6A Active CN109444325B (en) | 2018-12-25 | 2018-12-25 | Steam sleeve and element analyzer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109444325B (en) |
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| CN109444325A (en) | 2019-03-08 |
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