CN209513370U - A kind of gasometry sampling analysis device - Google Patents
A kind of gasometry sampling analysis device Download PDFInfo
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- CN209513370U CN209513370U CN201920199043.5U CN201920199043U CN209513370U CN 209513370 U CN209513370 U CN 209513370U CN 201920199043 U CN201920199043 U CN 201920199043U CN 209513370 U CN209513370 U CN 209513370U
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- sampling
- air inlet
- gas
- microgas
- analyser
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Abstract
The utility model provides a kind of gasometry sampling analysis device, including sampling main line, the sampling main line includes flowmeter and the air inlet pipe and an air outlet pipe for being connected to the flowmeter import and export, microgas analyser is provided on the escape pipe, it is provided with a bypass branch between the air inlet pipe air inlet and the microgas analyser gas outlet, is provided with adjusting flow divider in the bypass branch.The utility model structure is simple, can stably measured flow is not influenced by air inlet flowed fluctuation variation all the way, quantitative sampling, quantitative analysis, finding speed is fast, and measurement accuracy is high.
Description
Technical field
The utility model relates to gas sampling technique field, specially a kind of gasometry sampling analysis device.
Background technique
Currently, many fields such as environment measuring and Chemical Manufacture require accurately to survey in petrochemical industries such as petroleum gases
The concentration for measuring certain minimum gas in mixed gas needs to sample mixed gas, analyzes the content of certain minimum gas.It is existing
In technology, the sampling of tested mixed gas is usually that tested mixed gas is made successively to pass through flowmeter and micro from sampling air inlet pipe
Gas analyzer completes the sampling to tested mixed gas and the analysis to minimum gas.The defect of this method is: a) air inlet
The fluctuating change of implication source causes influence of fluctuations to sampling；B) it samples in main line and there is infiltration water and absorption water, cause sampling dirty
On the one hand dye, sampling pollution cause finding speed slow, on the other hand cause measurement accuracy low greatly.
Utility model content
For the defects in the prior art, the utility model provides gasometry sampling analysis device, can stablize survey
Flow is not influenced amount by air inlet flowed fluctuation variation all the way, and quantitative sampling, quantitative analysis, finding speed is fast, and measurement accuracy is high.
Technical solutions of the utility model are as follows:
A kind of gasometry sampling analysis device, key are: including sampling main line, the sampling main line includes
Flowmeter and the air inlet pipe and an air outlet pipe for being connected to the flowmeter import and export, are provided with minimum gas on the escape pipe
Analyzer is provided with a bypass branch, institute between the air inlet pipe air inlet and the microgas analyser gas outlet
It states and is provided with adjusting flow divider in bypass branch.
Further, the microgas analyser is oxygen analyzer.
According to the above-mentioned technical solution, it is tested gas to enter from air inlet, is divided into two-way, all the way successively through inflow-rate of water turbine
Meter, microgas analyser are to exporting, which is the flow of gas to be measured, all the way through adjusting flow divider to flowmeter outlet.
The split ratio of flow divider regulating gas is adjusted by bypass in this way, gas flow is quantitative all the way for control measurement always, even if air inlet
Gas flowed fluctuation variation, gas flow is stablized all the way for measurement, avoids gas source fluctuating change influence caused by sampling.Separately
Outside, the design of bypass increases sampling total amount, and such sampling system total flow increases, and air-flow is to the contaminant water in sampling main line
Purging ability is strong, and microgas analyser registration reaches balance ahead of time, accelerates finding speed.And sampling can be taken away by bypassing
Sampling pollution is effectively reduced in contaminant water in main line (such as infiltration water, absorption water).
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios
It draws.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the process of gas path figure that the utility model is used to analyze trace oxygen；
In attached drawing: 1- air inlet pipe；2- threeway；3- bypass branch；4- adjusts flow divider；5- flowmeter；6- escape pipe；7- is micro-
Measure gas analyzer；8- under test gas；9- pressure reducing valve；10- safety valve；11- filter；12- needle-valve；13- check-valves.
Specific embodiment
The embodiments of the present invention are described in further detail with reference to the accompanying drawing.
In the present embodiment, the orientation or position of the instructions such as term " on " "lower" " left side " " right side " " preceding " " rear " " upper end " " lower end "
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing, rather than indication or suggestion meaning
Device or element must have a particular orientation, constructed or operated with specific orientation, therefore should not be understood as practical new to this
The limitation of type.
As shown in Figure 1, a kind of gasometry sampling analysis device, including main line is sampled, the sampling main line includes
Flowmeter 5 and the air inlet pipe 1 and escape pipe 6 for being connected to the flowmeter import and export, are provided with micro on the escape pipe 6
Gas analyzer 7 is provided with a bypass between 7 gas outlet of 1 air inlet of air inlet pipe and the microgas analyser
Branch pipe 3, bypass branch 3 pass through two threeways 2 and main sampling piping connection, are provided with adjusting flow divider in the bypass branch 3
4。
As shown in Figure 1, tested gas enters from the air inlet of air inlet pipe 1, be divided into two-way, all the way successively by flowmeter 5,
For microgas analyser 7 to outlet, which is the flow of gas to be measured；Another way is through adjusting flow divider 4 to outlet.It is logical in this way
The split ratio of adjusting 4 regulating gas of flow divider of bypass branch 3 is crossed, gas flow is quantitative all the way for control measurement always, even if into
The variation of port gas flow fluctuations, gas flow is still stable all the way for measurement, avoids gas source fluctuating change shadow caused by sampling
It rings.For example microgas analyser 7 needs the flow of 200ml/min, the inlet flow rate of air inlet pipe 1 is 500ml/min, passes through tune
The split ratio for saving 4 regulating gas of flow divider makes measurement remain the flow of 200ml/min all the way, due to setting for bypass branch 3
It sets, measures stability of flow all the way, will not change because of being fluctuated by gas source.
In addition, the design of bypass branch 3 increases sampling total amount, such sampling system total flow increases, and air-flow is to sampling
Contaminant water purging ability in main line is strong, and 7 registration of microgas analyser reaches balance ahead of time, accelerates finding speed.And
And bypass can take away the contaminant water in sampling main line, and sampling pollution (referring mainly to infiltration water, absorption water) is effectively reduced.
The utility model is illustrated in figure 2 for analyzing the process of gas path figure of trace oxygen in mixed gas, with certain factory
For oxygen analysis, microgas analyser 7 is oxygen analyzer, and flow needed for oxygen analyzer needs constant in 100mL/min.It is to be measured
Gas 8 exports total flow about 500mL/min, is divided into three tunnels, puts all the way through needle-valve 12 and flowmeter 5 after the decompression of pressure reducing valve 9
Sky, the roadside through-current capacity about 150mL/min.Anti- system overpressure is equipped with safety valve 10 all the way, by this after a-road-through filter 11
Utility model, setting adjust flow divider 4, and measurement is made to enter oxygen analyzer by terms of measuring flow 5 by 100mL/min all the way,
Residual air body is discharged through bypass branch, by 13 safety vent of check-valves.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that；
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution should all cover in the claim of the utility model and the range of specification.
Claims (2)
1. a kind of gasometry sampling analysis device, it is characterised in that: including sampling main line, the sampling main line includes stream
Meter and the air inlet pipe and an air outlet pipe for being connected to the flowmeter import and export are provided with minimum gas point on the escape pipe
Analyzer is provided with a bypass branch between the air inlet pipe air inlet and the microgas analyser gas outlet, described
Adjusting flow divider is provided in bypass branch.
2. gasometry sampling analysis device according to claim 1, it is characterised in that: the microgas analyser is
Oxygen analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199043.5U CN209513370U (en) | 2019-02-15 | 2019-02-15 | A kind of gasometry sampling analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199043.5U CN209513370U (en) | 2019-02-15 | 2019-02-15 | A kind of gasometry sampling analysis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209513370U true CN209513370U (en) | 2019-10-18 |
Family
ID=68204130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920199043.5U Expired - Fee Related CN209513370U (en) | 2019-02-15 | 2019-02-15 | A kind of gasometry sampling analysis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209513370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098160A (en) * | 2020-08-14 | 2020-12-18 | 中国神华能源股份有限公司国华电力分公司 | Steam sampling device and steam sampling system of thermal power plant |
| CN112748217A (en) * | 2020-12-14 | 2021-05-04 | 河南平高电气股份有限公司 | On-line detection device and gas recovery system using same |
-
2019
- 2019-02-15 CN CN201920199043.5U patent/CN209513370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098160A (en) * | 2020-08-14 | 2020-12-18 | 中国神华能源股份有限公司国华电力分公司 | Steam sampling device and steam sampling system of thermal power plant |
| CN112748217A (en) * | 2020-12-14 | 2021-05-04 | 河南平高电气股份有限公司 | On-line detection device and gas recovery system using same |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20210215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |