CN202886386U - Full-automatic gas collection and online real-time testing system - Google Patents
Full-automatic gas collection and online real-time testing system Download PDFInfo
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- CN202886386U CN202886386U CN 201220628240 CN201220628240U CN202886386U CN 202886386 U CN202886386 U CN 202886386U CN 201220628240 CN201220628240 CN 201220628240 CN 201220628240 U CN201220628240 U CN 201220628240U CN 202886386 U CN202886386 U CN 202886386U
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Abstract
The utility model discloses a full-automatic gas collection and online real-time testing system. The system has the technical effects that (1) the system can realize full-automatic gas product collection and online real-time analysis test, manual field operation is not required, lots of precious time and vigor are saved for the scientific research personnel, and the scientific research efficiency is greatly improved; and (2) the system is wide in gas concentration analysis range and high in testing accuracy. The system can have a normal pressure opening operating mode and a normal pressure closed operating mode according to the testing requirements, and the two modes can be flexibly selected. When the high-concentration or high-capacity gas to be detected is analyzed, the normal pressure opening operating mode can be selected; and when the trace gas to be detected is analyzed, the closed operating mode can be adopted. The gas which can be analyzed by the system is wide in range.
Description
Technical field
The utility model relates to a kind of gas collection and on air real time test system, and the Full-automatic gas in the field such as particularly relate to a kind of, photocatalysis-liquid-solid gas-solid for photolysis water hydrogen, photodissociation water oxygen processed, the full photodissociation of water, photocatalysis gas-liquid, photocatalysis, catalyze and synthesize is collected and the on air real time test system.
Background technology
From discovery TiO such as Honda in 1972
2Since the report such as photolysis water hydrogen and the Cary photocatalytic degradation 4-chlorophenol, the potential application of photocatalysis technology at aspects such as green regenerative energy sources and environment remediation caused various countries scholars' very big interest, become one of the study hotspot in the fields such as present new forms of energy, new material, catalysis, environmental protection.Gas collection and on air real time test system carry out the photocatalysis research relevant with gas such as a kind of important testing apparatus of photolysis water hydrogen, photodissociation water oxygen processed, photoelectric decomposition water, light degradation harmful gas etc.
At present, the existing gas collection in market and on air real time test system major part all are to work under the vacuum environment, and the test gas amount is very limited, only can realize collection and online detection of minimum gas.Through the development of many decades, photocatalysis technology has been obtained huge progress, and the series of new catalysis material constantly is successfully synthesized out, and its photocatalysis efficiency improves constantly, and the gas generated order of magnitude that is improves.A kind of " black TiO such as reports such as X.B.Chen in 2011
2" hydrogen-producing speed up to the 10mmol/g catalyzer, before the report TiO
2Photodissociation aquatic products hydrogen performance has improved about 2 orders of magnitude, and (Science 2011,331,746-750).Therefore, the existing gas collection in market and on air real time test system are difficult to satisfy the actual demand of research work.In addition, also there is the problem of following several respects in existing test macro: (1) measuring accuracy is poor, the testing gas concentration narrow range.Because online the detection adopted the gas chromatograph test, the working pressure of chromatogram carrier gas is 2～6atm.And detection system is vacuum, can cause the fluctuation of chromatogram nebulizer gas pressure during the sample introduction test, affects the stability of Chromatogram Baseline, thereby test result is caused larger error; (2) the magnetic control pump is mostly adopted in the gas mixing, and mixing efficiency is relatively poor, and gas mixes required time and grows (about 15-30min), causes test result to lag behind; (3) install and safeguard inconvenience.Most of existing system material is full glass or glass and stainless steel combine (CN 201811873U).Adopt to cut down between glass and stainless steel to be connected, system installs needs the scene to fire.And glass is fragile article, if system in use accidentally damages or other problem occurs, must the glass master worker arrive the use field maintemance, and maintenance period is long, is unfavorable for carrying out of research work; Need artificial execute-in-place when (4) testing, the test job amount is large, and the test duration is long, takies a lot of times of scientific research personnel and energy, and maloperation very easily occurs, thereby cause experiment to be interrupted and the damage gas chromatography.
Therefore, develop that a kind of test specification is wide, precision is high, operation and maintenance easily Full-automatic gas collect and the on air real time test system has become association area research problem demanding prompt solution.
The utility model content
The purpose of this utility model is the deficiency for existing products in markets, provide that a kind of test specification is wide, precision is high, operation and maintenance easily Full-automatic gas collect and the on air real time test system.
The technical solution of the utility model is, a kind of Full-automatic gas is collected and the on air real time test system, connect T-valve by pipeline inert gas tank through inert gas mass flowmeter, inert gas two-port valve, the calibrating gas tank connects T-valve through calibrating gas mass flowmeter, calibrating gas two-port valve; T-valve one valve port connects reactor, another valve port connects sampling pump, sampling pump connects respectively pneumatic six-way valve and exhaust three-way valve through two-port valve, the exhaust three-way valve one valve port tracheae that runs in, the liquid nitrogen cold trap that another valve port connects the vacuum buffer pipe and is connected to vacuum buffer pipe bottom, liquid nitrogen cold trap are provided with glass evacuated valve; Double-deck condensing reflux pipe one termination reactor, the pneumatic six-way valve of another termination is connected to pressure vacuum gauge at the pipeline of double-deck condensing reflux pipe and pneumatic six-way valve, is connected to gas chromatograph at pneumatic six-way valve; Host computer is electrically connected trigger, and trigger is electrically connected respectively pneumatic six-way valve and gas chromatograph, and host computer is electrically connected with the gas chromatograph electricity.
Described pipeline is the stainless steel pipeline.
Described reactor is photolysis water hydrogen reactor, photodissociation water oxygen making reaction, the full photolysis device of water, photoelectric reactor, photocatalysis solid-liquid reaction device, photocatalysis gas-liquid-solid reactor, photocatalysis gas-liquid reaction device or catalytic synthesis device.
Described double-deck condensing reflux pipe is double-layer straight shape condensing reflux pipe, spherical bilayer condensing reflux pipe or double-deck snakelike condensing reflux pipe.
Described stainless steel pipeline is connected by cutting ferrule with reactor, double-deck condensing reflux pipe, vacuum buffer pipe.
Described inert gas refers to high pure nitrogen, high-purity argon gas, high-purity helium.
The utlity model has following technique effect, (1) native system can be realized full-automatic collection and the on-line analysis test of gaseous product, do not need artificial execute-in-place, for the scientific research personnel saves a large amount of quality time and energy, greatly improved scientific research efficient simultaneously yet; (2) native system analytical gas concentration range is wide, and testing precision is high.Native system can be according to the test needs, have that normal pressure opens wide, two kinds of mode of operation modes of sealing can supply flexible choice.During analytical concentration is higher or output is larger gas to be measured, can select normal pressure to open wide mode of operation; When analyzing micro-gas to be measured, can adopt the sealing mode of operation.The gas flow scope that system can analyze is very wide.In addition, because pressure and the chromatogram nebulizer gas pressure of gas sample tube are more approaching, to the fluctuation of chromatogram nebulizer gas pressure, improved measuring accuracy in the time of effectively avoiding sample introduction; (3) system's installation and maintenance is convenient and swift.The native system pipeline adopts stainless steel gas circuit pipe, and is not fragile.Simultaneously, pipeline is connected with glass and is connected by cutting ferrule, installation, maintenance do not need special professional to the erecting stage, but user's self-changeable related accessory, having overcome the existing market existing system installs, safeguards and need to fire at professional glass master scene, the drawbacks such as operation is complicated, and the installation and maintenance cycle is long, Effective Raise work efficiency.
Description of drawings
Fig. 1 is that a kind of Full-automatic gas of the utility model is collected and on air real time test systematic sampling view.
Fig. 2 is that a kind of Full-automatic gas of the utility model is collected and on air real time test system sample introduction view.
A kind of Full-automatic gas that Fig. 3 the utility model proposes is collected and the working curve of on air real time test system under the unlimited mode of operation of normal pressure.
A kind of Full-automatic gas that Fig. 4 the utility model proposes is collected and the working curve of on air real time test system under the sealing mode of operation.
The working curve of the full glass system that Fig. 5 company produces.
Fig. 6 adopts a kind of Full-automatic gas is collected and the on air real time test system records photodissociation water hydrogen output, hydrogen-producing speed and the relation curve of time that the utility model proposes.
Full glass system photodissociation water hydrogen output and the relation curve of time that Fig. 7 adopts certain company to produce.
Embodiment
As shown in Figure 1 and Figure 2, a kind of Full-automatic gas is collected and the on air real time test system, connect T-valve 7 by pipeline inert gas tank 5 through inert gas mass flowmeter 1, inert gas two-port valve 2, calibrating gas tank 6 connects T-valve 7 through calibrating gas mass flowmeter 3, calibrating gas two-port valve 4; T-valve 7 one valve ports connect reactor 8, another valve port connects sampling pump 9, sampling pump 9 connects respectively pneumatic six-way valve 13 and exhaust three-way valve 17 through two-port valve 15, the exhaust three-way valve 17 1 valve ports tracheae 16 that runs in, the liquid nitrogen cold trap 19 that another valve port connects vacuum buffer pipe 18 and is connected to vacuum buffer pipe 18 bottoms, liquid nitrogen cold trap 19 are provided with glass evacuated valve 21; Double-deck condensing reflux pipe 11 1 termination reactors 8, the pneumatic six-way valve 13 of another termination is connected to pressure vacuum gauge 10 at the pipeline of double-deck condensing reflux pipe 11 and pneumatic six-way valve 13, is connected to gas chromatograph 12 at pneumatic six-way valve 13; Host computer 20 is electrically connected trigger 14, and trigger 14 is electrically connected respectively pneumatic six-way valve 13 and gas chromatograph 12, and host computer 20 is electrically connected with gas chromatograph 12.
A kind of Full-automatic gas that the utility model proposes collect and the on air real time test system at normal pressure or be higher than under the normal pressure and work, overcome the drawback that traditional photodissociation water system vacuum tightness is difficult to guarantee.The utlity model has two kinds of mode of operations:
(1) normal pressure its open mode.When the higher gaseous product of test output as: investigate under the full light irradiation of sunshine photodissociation aquatic products hydrogen performance etc., adopt the normal pressure mode of opening wide to detect: to be communicated with inert gas two-port valve 2, disconnect calibrating gas two-port valve 4, T-valve 7 is communicated with inert gas mass flowmeter 1 and reactor 8, disconnect two-port valve 15, exhaust three-way valve 17 is communicated with gas outlet 16 and pneumatic six-way valve 13, regulate inert gas mass flowmeter 1, with the high purity inert gas of constant rate as carrier gas, drive the flow through quantity tube 23 of pneumatic six-way valve 13 of gaseous product, then flow out gas outlet 16.By pneumatic six-way valve 13 and host computer 20 and trigger 14, regularly gas inject gas chromatograph 12 to be measured is analyzed;
(2) closed mode.When the testing for traces gaseous product, such as the quantum efficiency of investigating photodissociation aquatic products hydrogen etc., adopt the atmospheric closed mode to detect: T-valve 7 to be communicated with gas samping pump 9 and reactors 8, to be communicated with two-port valve 15, disconnect exhaust three-way valve 17.Open gas samping pump 9, make gaseous product in system Rapid Circulation, mix, then by pneumatic six-way valve 13 and host computer 20 and trigger 14, regularly determinand inject gas chromatograph 12 is analyzed.
The utility model can be widely used in that photolysis water hydrogen, photodissociation water oxygen processed, the full photodissociation of water, photocatalysis gas-liquid, photocatalysis are gas-solid, photocatalysis-liquid-solid, the full-automatic collection and on air real time test of gas in field such as catalyze and synthesize.The utility model analytical gas concentration range is wide, and testing precision is high; Installation and maintenance is convenient and swift; System's operation does not need artificial execute-in-place, for the scientific research personnel saves a large amount of quality time and energy, has greatly improved scientific research efficient simultaneously yet.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet this is not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that utilizes above-mentioned announcement is done a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, be equal to change and modify, all still belong in the scope of technical solutions of the utility model.
Below, further specify advantage of the present utility model in conjunction with the photolysis water hydrogen experiment:
Fig. 3,4 is respectively the working curve that the native system normal pressure opens wide, seals two kinds of patterns.From scheming as seen, namely (normal pressure its open mode hydrogen flow rate is 0-30ml/h in the very wide situation of test gas weight range; The volume that closed mode adds hydrogen is 0-120ml), the working curve linear relationship of two kinds of patterns of native system very excellent (R2＞99%) illustrates that the native system test result is accurately reliable.Fig. 5 is the working curve of the full glass system of certain company's production, only basic symbols zygonema sexual intercourse (R in the 0-10ml scope
2≈ 95%), surpassing this scope need to carry out match with the equation of higher degree, and measuring accuracy is relatively poor, and data are processed very trouble.Fig. 6 is for using the collection of the utility model Full-automatic gas and on air real time test system (normal pressure its open mode) to investigate the photolysis water hydrogen performance of certain TiO 2-base optical catalyst and the relation curve of time, catalyst amount is 10mg, carry out continuously the 100h test in unattended situation, the sample analysis frequency is 20min/ time.Fig. 7 uses the photolysis water hydrogen performance of full glass system test and the relation curve of time under same reaction conditions.Full glass system test needs artificial execute-in-place, and need to vacuumize system every certain hour, and test process bothers, inefficiency, and wasted a large amount of time and efforts of scientific research personnel.From figure as can be known, the photodissociation aquatic products hydrogen speed that the collection of the utility model Full-automatic gas and on air real time test system record this TiO 2-base optical catalyst is the 37.6mmol/h/g catalyzer, adopt full glass system test acquired results to be about the 36mmol/h/g catalyzer, both results are more approaching, illustrate that adding inert gas to test macro does not affect photodissociation aquatic products hydrogen performance.
The utility model Full-automatic gas is collected and the on air real time test advantage of system can further be confirmed by the photolysis water hydrogen test.Fig. 3,4 is respectively the working curve that the native system normal pressure opens wide, seals two kinds of patterns, and Fig. 5 is the working curve of the full glass system of certain company's production.From scheming as seen, namely (normal pressure its open mode hydrogen flow rate is 0-30ml/h in the very wide situation of test gas weight range; The volume that closed mode adds hydrogen is 0-120ml), the very excellent (R of the working curve linear relationship of two kinds of patterns of native system
2＞98.5%), illustrates that the native system test result is accurately reliable.And full glass system basic symbols zygonema sexual intercourse (R in the 0-10ml scope only
2≈ 95%), surpassing this scope need to carry out match with the equation of higher degree, and measuring accuracy is relatively poor, and data are processed very trouble.Fig. 6 is for using the collection of the utility model Full-automatic gas and on air real time test system (normal pressure its open mode) to investigate the photolysis water hydrogen performance of certain TiO 2-base optical catalyst and the relation curve of time, catalyst amount is 10mg, carry out continuously the 100h test in unattended situation, the sample analysis frequency is 20min/ time.Fig. 7 uses the photolysis water hydrogen performance of full glass system test and the relation curve of time under same reaction conditions.Full glass system test needs artificial execute-in-place, and need to vacuumize system every certain hour, and test process bothers, inefficiency, and wasted a large amount of time and efforts of scientific research personnel.From figure as can be known, the photodissociation aquatic products hydrogen speed that the collection of the utility model Full-automatic gas and on air real time test system record this TiO 2-base optical catalyst is the 37.6mmol/h/g catalyzer, adopt full glass system test acquired results to be about the 36mmol/h/g catalyzer, both results are more approaching, illustrate that adding inert gas to test macro does not affect photodissociation aquatic products hydrogen performance.
Claims (6)
1. a Full-automatic gas is collected and the on air real time test system, it is characterized in that: connect T-valve (7) by pipeline inert gas tank (5) through inert gas mass flowmeter (1), inert gas two-port valve (2), calibrating gas tank (6) connects T-valve (7) through calibrating gas mass flowmeter (3), calibrating gas two-port valve (4); T-valve (7) one valve ports connect reactor (8), another valve port connects gas samping pump (9), gas samping pump (9) connects respectively pneumatic six-way valve (13) and exhaust three-way valve (17) through two-port valve (15), exhaust three-way valve (17) the one valve ports tracheae (16) that runs in, the liquid nitrogen cold trap (19) that another valve port connects vacuum buffer pipe (18) and is connected to vacuum buffer pipe (18) bottom, liquid nitrogen cold trap (19) is provided with glass evacuated valve (21); Double-deck condensing reflux pipe (11) one termination reactors (8), the pneumatic six-way valve of another termination (13), pipeline at double-deck condensing reflux pipe (11) and pneumatic six-way valve (13) is connected to pressure vacuum gauge (10), is connected to gas chromatograph (12) at pneumatic six-way valve (13); Host computer (20) is electrically connected trigger (14), and trigger (14) is electrically connected respectively pneumatic six-way valve (13) and gas chromatograph (12), and host computer (20) is electrically connected with gas chromatograph (12).
2. a kind of Full-automatic gas according to claim 1 is collected and the on air real time test system, and it is characterized in that: described pipeline is the stainless steel pipeline.
3. a kind of Full-automatic gas according to claim 1 is collected and the on air real time test system, it is characterized in that: described reactor (8) is photolysis water hydrogen reactor, photodissociation water oxygen making reaction, the full photolysis device of water, photoelectric reactor, photocatalysis solid-liquid reaction device, photocatalysis gas-liquid-solid reactor, photocatalysis gas-liquid reaction device or catalytic synthesis device.
4. a kind of Full-automatic gas according to claim 1 is collected and the on air real time test system, and it is characterized in that: described double-deck condensing reflux pipe (11) is double-layer straight shape condensing reflux pipe, spherical bilayer condensing reflux pipe or double-deck snakelike condensing reflux pipe.
5. a kind of Full-automatic gas according to claim 2 is collected and the on air real time test system, and it is characterized in that: the stainless steel pipeline is connected by cutting ferrule (22) with reactor (8), double-deck condensing reflux pipe (11), vacuum buffer pipe (18).
6. a kind of Full-automatic gas according to claim 1 is collected and the on air real time test system, and it is characterized in that: described inert gas refers to high pure nitrogen, high-purity argon gas or high-purity helium.
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| CN 201220628240 CN202886386U (en) | 2012-11-22 | 2012-11-22 | Full-automatic gas collection and online real-time testing system |
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| CN 201220628240 CN202886386U (en) | 2012-11-22 | 2012-11-22 | Full-automatic gas collection and online real-time testing system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815597A (en) * | 2015-05-10 | 2015-08-05 | 福建师范大学泉港石化研究院 | Small-size integrated water photolysis hydrogen production reaction device |
| CN105842035A (en) * | 2016-06-07 | 2016-08-10 | 中国科学院地球环境研究所 | Gas treating system applicable to online carbon dioxide measuring |
| CN107084860A (en) * | 2017-06-20 | 2017-08-22 | 海南聚能科技创新研究院有限公司 | Reaction generation minimum gas on-line detecting system |
| CN110770579A (en) * | 2017-08-25 | 2020-02-07 | 株式会社岛津制作所 | Liquid chromatograph and dissolution test system |
-
2012
- 2012-11-22 CN CN 201220628240 patent/CN202886386U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815597A (en) * | 2015-05-10 | 2015-08-05 | 福建师范大学泉港石化研究院 | Small-size integrated water photolysis hydrogen production reaction device |
| CN105842035A (en) * | 2016-06-07 | 2016-08-10 | 中国科学院地球环境研究所 | Gas treating system applicable to online carbon dioxide measuring |
| CN105842035B (en) * | 2016-06-07 | 2023-08-29 | 中国科学院地球环境研究所 | Gas treatment system suitable for carbon dioxide on-line measurement |
| CN107084860A (en) * | 2017-06-20 | 2017-08-22 | 海南聚能科技创新研究院有限公司 | Reaction generation minimum gas on-line detecting system |
| CN110770579A (en) * | 2017-08-25 | 2020-02-07 | 株式会社岛津制作所 | Liquid chromatograph and dissolution test system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20171122 |