CN2570781Y - Gas proportioning device for organic element content analysis - Google Patents
Gas proportioning device for organic element content analysis Download PDFInfo
- Publication number
- CN2570781Y CN2570781Y CN 02279374 CN02279374U CN2570781Y CN 2570781 Y CN2570781 Y CN 2570781Y CN 02279374 CN02279374 CN 02279374 CN 02279374 U CN02279374 U CN 02279374U CN 2570781 Y CN2570781 Y CN 2570781Y
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- gas
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- cover plate
- analysis
- element content
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Abstract
The utility model relates to a gas proportioning device for organic element content analysis, which is composed of a cylinder, an upper cover plate, a lower cover plate, a gas inlet pipe, an exhaust pipe, a piston ring, an upper positioning switch, a lower positioning switch, a cylinder pressure sensor, a three-way valve, an electromagnetic valve, a positioning sheet metal, a sealing rubber ring, etc. Gas generated by combusting or pyrolyzing samples enters the cylinder through the gas inlet pipe under the function of a pump, fills the whole cylinder and achieves the set pressure under the pressure of the pump, the whole cylinder environment is maintained at the constant temperature simultaneously, and the proportioning analysis of the gas is realized in the method. After the gas is closed and evenly mixed in the cylinder, less gas is taken to carry out the analysis of carbon dioxide, nitrogen oxide, sulfur dioxide, water, etc. The content of different elements such as C, H, N and S can be directly obtained according to the concentration of the gas.
Description
Technical field the utility model relates to a kind of organic element content analysis gasometry device, is mainly used in solid, and the gasometry sampling and analysing in the elemental analysers such as the C in the samples such as liquid, H, N, S is used.
Background technology is both at home and abroad to solid, the mensuration of elements such as the C in the samples such as liquid, H, N, S, often adopt earlier quantitative sample perfect combustion or pyrolysis produced CO2, H2O, gases such as SO2, NOX after, under the effect of pump, carry out in the method for gas being carried out real-time analysis.This method requires the flow of pump very stable, but because temperature, pressure are different, and pump use for a long time can be aging etc. reason, gas flow is altered a great deal, can not meet the demands, in this external burning or the pyrolytic process, gas release rate difference is very big, so gas concentration signal differs also very big, if sensor is in order to guarantee the precision of high concentration, the accuracy of measurement of low concentration will be very low so, and vice versa.Therefore measurement result is inaccurate.
The summary of the invention the purpose of this utility model is to overcome above deficiency, provide a kind of and can carry out quantitative sampling analytic sample, carry out the gas concentration analysis again after gas mixed, accurately a kind of organic element content analysis gasometry device of organic element content in the analytic sample.
The utility model purpose implementation is: organic element content analysis gasometry device, cylinder 1 is upper and lower a upper and lower cover plate 2,3, in piston ring 7, location sheet metal 14, sealing rubber ring 15 are arranged.Gas outlet 6, T-valve 13 are arranged on the upper cover plate 2, draft tube 4, gas outlet 5 are arranged on the lower cover 3, cylinder pressure sensors 10, T-valve 11, solenoid valve 12 are arranged respectively on the pipe.The upper and lower positioning switch 8,9 of the limited fixed piston ring 7 of difference on the upper and lower cover plate.
The gas that produces after sample combustion or the pyrolysis is under the effect of pump, enter cylinder by draft tube 4, piston ring 7 is to the direction motion of upper cover plate 2, the last positioning switch of installing on upper cover plate 28 acts on the signal that produces with location sheet metal 14, the prompting piston ring has reached the top, after this pump continue to extract the gas of burning or pyrolysis installation, reaches preset value up to the signal of cylinder pressure sensors 10, promptly reaches the pressure of setting.Entire cylinder was placed in one and stablized in the constant atmosphere this moment, because cylinder gas volume, pressure, temperature are steady state value, therefore each gas flow of analyzing is definite value.When cylinder location arrives upper cover plate 2 and pressure arrival setting value, the gas emptying that can switch three-way valve 11 will enter later on, analytical gas is after the cylinder inner sealing mixes, T-valve 13 is switched to the analysis gas circuit, the gas that takes a morsel carries out the concentration analysis of CO2, NOX, SO2, H2O etc., can obtain the content of C, H, the different elements of N, S respectively according to gas concentration.After this can make solenoid valve 12, T-valve 13 is switched to the emptying gas circuit, under the effect of gas pressure source or pump, by gas outlet 5, gas outlet 6 gas in the cylinder is passed through gas outlet 5 emptyings, signal prompt piston ring 7 up to following positioning switch 9 has arrived lower cover of air cylinder plate 3, after this waits for next experiment.
Cylinder 1 usefulness tempered glass of the present utility model, simple glass, quartz glass, metal, high-temperature resistance plastice or organic glass are made, and are good with tempered glass.Pressure transducer is used for determining cylinder gas pressure.Analytic sample can be a solid, also can be liquid.Also be fit to utilize galvanochemistry, infrared, detected gas content such as electricity is led, thereby obtain the content of C, H, the different elements of N, S.
In sum, the utility model adopts the special volume cylinder of deciding, and the gas that under specified temp and pressure analytic sample is produced carries out quantitatively, and apparatus structure is simple, easy to use, be fit to C, the H of samples such as solid, liquid, the rapid and accurate determination of elements such as N, S.
Description of drawings
Accompanying drawing is a mounting structure synoptic diagram of the present utility model.
Embodiment
Pressure transducer of the present utility model position can be installed in draft tube 4, also can be installed in the position that other can measure cylinder pressure.The utility model can be placed by multiple mode, as vertical placement, and horizontal positioned or place at an angle can.
Claims (3)
1, organic element content analysis gasometry device, it is characterized in that cylinder (1) is upper and lower has upper and lower cover plate (2), (3), in piston ring (7), location sheet metal (14), sealing rubber ring (15) are arranged, gas outlet (6), T-valve (13) are arranged on the upper cover plate (2), draft tube (4), gas outlet (5) are arranged on the lower cover (3), cylinder pressure sensors (10), T-valve (11), solenoid valve (12) are arranged, upper and lower positioning switch (8), (9) of the limited fixed piston ring of difference (7) on the upper and lower cover plate on the pipe respectively.
2, proportioning device according to claim 1 is characterized in that cylinder (1) makes with tempered glass, simple glass, quartz glass, metal, high-temperature resistance plastice or organic glass.
3, proportioning device according to claim 1 is characterized in that pressure transducer also can be installed in the position that other can measure cylinder pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279374 CN2570781Y (en) | 2002-09-28 | 2002-09-28 | Gas proportioning device for organic element content analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279374 CN2570781Y (en) | 2002-09-28 | 2002-09-28 | Gas proportioning device for organic element content analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2570781Y true CN2570781Y (en) | 2003-09-03 |
Family
ID=33742453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279374 Expired - Fee Related CN2570781Y (en) | 2002-09-28 | 2002-09-28 | Gas proportioning device for organic element content analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2570781Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749289A (en) * | 2011-04-18 | 2012-10-24 | 北京市劳动保护科学研究所 | Digital gas detection device and method |
| CN103267656A (en) * | 2013-05-27 | 2013-08-28 | 盘锦中舜石油机械有限公司 | Portable closed sampling bucket |
-
2002
- 2002-09-28 CN CN 02279374 patent/CN2570781Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749289A (en) * | 2011-04-18 | 2012-10-24 | 北京市劳动保护科学研究所 | Digital gas detection device and method |
| CN103267656A (en) * | 2013-05-27 | 2013-08-28 | 盘锦中舜石油机械有限公司 | Portable closed sampling bucket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |