CN105717236A - Novel constant-temperature gas chromatograph - Google Patents
Novel constant-temperature gas chromatograph Download PDFInfo
- Publication number
- CN105717236A CN105717236A CN201610212629.1A CN201610212629A CN105717236A CN 105717236 A CN105717236 A CN 105717236A CN 201610212629 A CN201610212629 A CN 201610212629A CN 105717236 A CN105717236 A CN 105717236A
- Authority
- CN
- China
- Prior art keywords
- piston
- gas collection
- gas
- spectrometer
- gas phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
Abstract
The invention discloses a novel constant-temperature gas chromatograph. Small gas collection pistons are connected with test bottles through gas guide pipes, a large gas collection piston is connected with the small gas collection pistons through a ten-way valve, a gas inlet is arranged on the large gas collection piston and connected with a gas chromatograph body through a gas guide pipe, pressure sensors are arranged in the small gas collection pistons, electric valves are arranged in the large gas collection piston and the small gas collection pistons, and the pressure sensors, the gas chromatograph body and the electric valves are connected with a computer through leads. According to the constant-temperature gas chromatograph, pressure change in the gas collection pistons can be monitored by the internal pressure sensors in real time, a time-pressure curve can be generated by the computer, the passing amount of gas can also be controlled by controlling opening and closing of the electric valves by the aid of the computer, a thermostat, the test bottles and the gas chromatograph body are directly connected, previous troubles in the operation process are eliminated, errors are reduced, and the collected gas can be more accurate.
Description
Technical field
The invention belongs to gas phase and survey spectral technology field, especially relate to a kind of novel constant-temperature gas phase and survey spectrometer.
Background technology
It is the widest in aspect application such as oil, chemical industry, biochemistry, medical and health, food industry, environmental protection that gas phase surveys spectrometer.It is except in addition to qualitatively and quantitatively analyzing, moreover it is possible to measure sample at physicochemical constants such as fixing partition coefficient, activity coefficient, molecular weight and the specific surface areas gone up mutually.In general, gas phase survey spectrometer do not require nothing more than that carrier gas is pure, good leak tightness, flow speed stability and flow-speed measurement accurate, and require that there is good constant temperature effect, but, current gas phase surveys spectrometer operating process trouble, and error is relatively big, and constant temperature effect is the most unsatisfactory, certainty of measurement also ratio is relatively low, can not meet high accuracy, the requirement of high constant temperature.
Summary of the invention
The present invention is directed to existing technical problem, a kind of novel constant-temperature gas phase is provided to survey spectrometer, can be the quickest, realize gas molybdenum determination easily, good constant temperature effect can be reached, effective satisfied high accuracy, the requirement of constant temperature, m-pressure curve when can monitor that pressure changes and generated by computer in gas collection piston in real time by built-in pressure inductor, the Push And Release controlling electrically operated valve also by computer controls the amount that gas passes through, by calorstat, test bottle and gas phase are surveyed spectrometer and are directly connected, solve conventional operating process trouble, and reduce error, the gas enabling to collect is the most accurate, data are the most accurate, pressure-time curve can be demonstrated by computer, gas yield is judged by pressure increase value.
For achieving the above object, the present invention provides following technical scheme: a kind of novel constant-temperature gas phase surveys spectrometer, it includes housing and the big gas collection piston being arranged in housing, little gas collection piston, ten-way valve, gas phase surveys spectrometer, test bottle and computer, it is characterized in that, described little gas collection piston is connected with test bottle by airway, big gas collection piston is connected with little gas collection piston by described ten-way valve, it is provided with air inlet on described big gas collection piston, described air inlet is surveyed spectrometer by airway with gas phase and is connected, it is provided with pressure transducer in described little gas collection piston, it is provided with electrically operated valve in described big gas collection piston and little gas collection piston, described pressure transducer, gas phase surveys spectrometer, electrically operated valve is all connected with computer by wire.
Further, as preferably, being provided with thermal-insulating body in described housing, described thermal-insulating body is provided with insulation chamber door, described test bottle is arranged in described thermal-insulating body, is provided with temperature sensor and heater in described thermal-insulating body.
Further, as preferably, described big gas collection piston and little gas collection piston all include piston only, one-way cock, pressure transducer and piston, wherein, described piston is arranged in described piston only, and described piston is communicated with airway, the one end being connected with piston on described airway is provided with described electrically operated valve, being provided with pressure transducer on described piston, described piston only also connects airway, and the end of the airway being connected with piston only is provided with described one-way cock.
Further, as preferably, present invention additionally comprises the heat-insulating shield being arranged in housing, and described heat-insulating shield is arranged between described little gas collection piston and test bottle.
Further, as preferably, described big gas collection piston and gas phase are surveyed and are also equipped with heat-insulating shield between spectrometer.
Further, as preferably, described gas phase is provided with gas molecule detector in surveying spectrometer.
Further, as preferably, the outside of housing is provided with temperature and arranges knob, temperature display, on and off switch, electrically operated valve switch and parameter display screen.
Further, as preferably, described little gas collection piston and test bottle are multiple, and each described little gas collection piston is all connected with a test bottle, and described big gas collection piston is connected with each little gas collection piston by ten-way valve.
Further, as preferably, in little gas collection piston, pressure can individually be controlled by respective pressure display unit and pressure regulator respectively
Compared with prior art, the invention has the beneficial effects as follows:
nullA kind of novel constant-temperature gas phase that the present invention provides surveys spectrometer，Can be the quickest、Realize gas molybdenum determination easily，Good constant temperature effect can be reached，Effective satisfied high accuracy、The requirement of constant temperature，M-pressure curve when can monitor that pressure changes and generated by computer in gas collection piston in real time by built-in pressure inductor，The Push And Release controlling electrically operated valve also by computer controls the amount that gas passes through，By calorstat、Test bottle and gas phase are surveyed spectrometer and are directly connected，Solve conventional operating process trouble，And reduce error，The gas enabling to collect is the most accurate，Data are the most accurate，Pressure-time curve can be demonstrated by computer，Gas yield is judged by pressure increase value，Connect on ten-way valve and have ten little gas collection pistons，It is connected by airway and ten test bottles respectively，Have the advantages that to test in high volume，Heat-insulating shield it is provided with in couveuse，Heat-insulating shield superjacent air space is not in heater sphere of action，Decrease the temperature impact on collecting gas volume.
Accompanying drawing explanation
Fig. 1 is the perspective view that this constant temperature gas phase surveys spectrometer；
Fig. 2 is the front view that this constant temperature gas phase surveys spectrometer；
Fig. 3 is the profile that this constant temperature gas phase surveys spectrometer；
Fig. 4 is the collection and confinement of gases structure chart that this constant temperature gas phase surveys spectrometer；
Fig. 5 is the gas collection piston enlarged drawing that this constant temperature gas phase surveys spectrometer；
Wherein, 1-housing, 2-is incubated chamber door, 3-thermal-insulating body, 4-heater, 5-temperature sensor, 6-temperature arranges knob, 7-temperature display, 8-on and off switch, 9-test bottle, 10 airways, 11-little gas collection piston, 12-one-way cock, 13-pressure transducer, 14-gas flowmeter, 15-electrically operated valve switchs, 16-electrically operated valve, 17-ten-way valve, 18-heat-insulating shield, 19-big gas collection piston, 191-piston, 20-air inlet, 21-gas phase surveys spectrometer, 211-gas molecule detector, 212-parameter display screen, 22-computer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1-5，The present invention provides a kind of technical scheme: a kind of novel constant-temperature gas phase surveys spectrometer，It includes housing 1 and the big gas collection piston 19 being arranged in housing 1、Little gas collection piston 11、Ten-way valve 17、Gas phase surveys spectrometer 21、Test bottle 9 and computer 22，It is characterized in that，Described little gas collection piston 11 is connected with test bottle 9 by airway 10，Big gas collection piston 19 is connected with little gas collection piston by described ten-way valve，It is provided with air inlet 20 on described big gas collection piston 19，Described air inlet 20 is surveyed spectrometer 21 by airway 10 with gas phase and is connected，It is provided with pressure transducer 13 in described little gas collection piston 11，It is provided with electrically operated valve 16 in described big gas collection piston 19 and little gas collection piston 11，Described pressure transducer 13、Gas phase surveys spectrometer 21、Electrically operated valve 16 is all connected with computer 22 by wire.
In the present embodiment, being provided with thermal-insulating body in described housing, described thermal-insulating body is provided with insulation chamber door, described test bottle is arranged in described thermal-insulating body, is provided with temperature sensor and heater in described thermal-insulating body.
Wherein, as shown in Figure 5, described big gas collection piston 19 and little gas collection piston 11 all include piston only, one-way cock 12, pressure transducer 13 and piston 191, wherein, described piston 191 is arranged in described piston only, it is communicated with airway 10 on described piston 191, the one end being connected with piston 191 on described airway 10 is provided with described electrically operated valve 16, it is provided with pressure transducer 13 on described piston 191, also connect on described piston only and have airway 10, and the end of the airway 10 being connected with piston only is provided with described one-way cock 12, , gas can only be entered little gas collection piston by test bottle by airway and can not reflux.
Additionally, as it is shown on figure 3, present invention additionally comprises the heat-insulating shield 18 being arranged in housing, and described heat-insulating shield 18 is arranged between described little gas collection piston 11 and test bottle 9.Described big gas collection piston 19 and gas phase are surveyed and are also equipped with heat-insulating shield 18 between spectrometer 21.Described gas phase is provided with gas molecule detector 211 in surveying spectrometer 21.As shown in Figure 1-2, the outside of housing 1 is provided with temperature and arranges knob 6, temperature display 7, on and off switch 8, electrically operated valve switch 15 and parameter display screen 212.Described little gas collection piston and test bottle are multiple, and each described little gas collection piston 11 is all connected with a test bottle 9, and described big gas collection piston 19 is connected with each little gas collection piston 11 by ten-way valve.In little gas collection piston, pressure can individually be controlled by respective pressure display unit and pressure regulator respectively.
The constant temperature gas phase of the present invention surveys the using method of spectrometer:
(1) first biological metabolism or chemical reaction solution are placed in test bottle, open couveuse goalkeeper real
Test bottle to be tightly connected with airway respectively；
(2) by temperature setting button regulation to experimental temperature, insulation chamber door is closed；
(3) gas pressure produced in test bottle increases, and will be entered in little gas collection piston by check valve；
(4) change of the pressure transducer monitoring pressure in real time value in little gas collection piston, and demonstrate pressure-time curve by computer, judge gas yield by pressure increase value；
(5) computer controls to open the electrically operated valve in any one little gas collection piston, the electrically operated valve of other little gas collection piston remains off, a certain amount of gas enters in the big gas collection piston being connected with ten-way valve by electrically operated valve, when pressure show value reaches desired gas amount, computer controls to close the electrically operated valve in little gas collection piston, and gas will not enter back in big gas collection piston；
(6) open gas chromatograph, start to measure gas component；
(7) open the electrically operated valve in big gas collection piston, after a certain amount of gas is all injected in gas chromatograph in piston, close electrically operated valve；
(8) gas chromatograph will detect gas component and content thereof automatically, and detects data by computer record；
(9) as gas yield and constituent content thereof in other test bottle need to be measured, above operation is repeated.
nullA kind of novel constant-temperature gas phase that the present invention provides surveys spectrometer，Can be the quickest、Realize gas molybdenum determination easily，Good constant temperature effect can be reached，Effective satisfied high accuracy、The requirement of constant temperature，M-pressure curve when can monitor that pressure changes and generated by computer in gas collection piston in real time by built-in pressure inductor，The Push And Release controlling electrically operated valve also by computer controls the amount that gas passes through，By calorstat、Test bottle and gas phase are surveyed spectrometer and are directly connected，Solve conventional operating process trouble，And reduce error，The gas enabling to collect is the most accurate，Data are the most accurate，Pressure-time curve can be demonstrated by computer，Gas yield is judged by pressure increase value，Connect on ten-way valve and have ten little gas collection pistons，It is connected by airway and ten test bottles respectively，Have the advantages that to test in high volume，Heat-insulating shield it is provided with in couveuse，Heat-insulating shield superjacent air space is not in heater sphere of action，Decrease the temperature impact on collecting gas volume，And，In little gas collection piston, pressure can individually be controlled by respective pressure display unit and pressure regulator respectively.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can carry out multiple change without departing from the principles and spirit of the present invention, revise, replace and modification, the scope of the present invention be defined by the appended.
Claims (9)
1. novel constant-temperature gas phase survey a spectrometer, it include housing and be arranged in housing big gas collection piston,
Little gas collection piston, ten-way valve, gas phase survey spectrometer, test bottle and computer, it is characterised in that described is little
Gas collection piston is connected with test bottle by airway, and big gas collection piston is by described ten-way valve and little gas collection
Piston is connected, and described big gas collection piston is provided with air inlet, and described air inlet passes through airway and gas
Survey spectrometer mutually to be connected, in described little gas collection piston, be provided with pressure transducer, described big gas collection piston and
Being provided with electrically operated valve in little gas collection piston, described pressure transducer, gas phase survey spectrometer, electrically operated valve are equal
It is connected with computer by wire.
A kind of novel constant-temperature gas phase the most according to claim 1 surveys spectrometer, it is characterised in that: described
Being provided with thermal-insulating body in housing, described thermal-insulating body is provided with insulation chamber door, described test bottle is arranged
In described thermal-insulating body, in described thermal-insulating body, it is provided with temperature sensor and heater.
A kind of novel constant-temperature gas phase the most according to claim 1 surveys spectrometer, it is characterised in that: described
Big gas collection piston and little gas collection piston all include piston only, one-way cock, pressure transducer and piston,
Wherein, described piston is arranged in described piston only, and described piston is communicated with airway, described in lead
The one end being connected with piston on trachea is provided with described electrically operated valve, and described piston is provided with pressure sensing
Device, described piston only also connects and has airway, and the end of the airway being connected with piston only sets
It is equipped with described one-way cock.
A kind of novel constant-temperature gas phase the most according to claim 1 surveys spectrometer, it is characterised in that: also wrap
Include the heat-insulating shield being arranged in housing, and described heat-insulating shield be arranged on described little gas collection piston and test bottle it
Between.
A kind of novel constant-temperature gas phase the most according to claim 4 surveys spectrometer, it is characterised in that: described
Big gas collection piston and gas phase are surveyed and are also equipped with heat-insulating shield between spectrometer.
A kind of novel constant-temperature gas phase the most according to claim 1 surveys spectrometer, it is characterised in that: described
Gas phase is provided with gas molecule detector in surveying spectrometer.
A kind of novel constant-temperature gas phase the most according to claim 1 surveys spectrometer, it is characterised in that: housing
Outside be provided with temperature arrange knob, temperature display, on and off switch, electrically operated valve switch and parameter
Display screen.
A kind of novel constant-temperature gas phase the most according to claim 1 surveys spectrometer, it is characterised in that: described
Little gas collection piston and test bottle are multiple, and each described little gas collection piston is all connected with a test bottle,
Described big gas collection piston is connected with each little gas collection piston by ten-way valve.
9. surveying spectrometer according to a kind of novel constant-temperature gas phase described in any one of claim 1-8, its feature exists
In: in little gas collection piston, pressure can individually be controlled by respective pressure display unit and pressure regulator respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212629.1A CN105717236B (en) | 2016-04-06 | 2016-04-06 | A kind of novel constant-temperature gas phase survey spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212629.1A CN105717236B (en) | 2016-04-06 | 2016-04-06 | A kind of novel constant-temperature gas phase survey spectrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105717236A true CN105717236A (en) | 2016-06-29 |
| CN105717236B CN105717236B (en) | 2019-01-29 |
Family
ID=56159668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610212629.1A Active CN105717236B (en) | 2016-04-06 | 2016-04-06 | A kind of novel constant-temperature gas phase survey spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105717236B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842679A (en) * | 1973-03-05 | 1974-10-22 | Varian Associates | Automatic sampler apparatus of modular construction |
| JPH0552830A (en) * | 1991-08-29 | 1993-03-02 | Yokogawa Electric Corp | Process gas chromatograph |
| CN2520508Y (en) * | 2002-02-07 | 2002-11-13 | 中国石油化工股份有限公司 | Multi-D gas chromatograph |
| CN201069441Y (en) * | 2007-06-26 | 2008-06-04 | 中国华北电力集团公司天津市电力公司 | Standard oil sample manufacturing device for online chromatogram monitoring system correcting the nuclear transformer insulation coil |
| CN102879506A (en) * | 2012-10-12 | 2013-01-16 | 中国工程物理研究院化工材料研究所 | Automatic gas sampling device and using method thereof |
| CN202974959U (en) * | 2012-11-26 | 2013-06-05 | 浙江泛泰仪器有限公司 | Full-automatic gas chromatography sample injector |
| CN103954698A (en) * | 2005-10-06 | 2014-07-30 | Sgs瑞士通用公证行股份有限公司 | Composition analysis of separated vapor and liquid phases using a gas chromatograph |
| CN105372349A (en) * | 2015-12-09 | 2016-03-02 | 南京华欣分析仪器制造有限公司 | Analysis instrument pneumatic multiport selector valve |
| CN205484227U (en) * | 2016-04-06 | 2016-08-17 | 河南理工大学 | Novel spectrometer is surveyed to constant temperature gaseous phase |
-
2016
- 2016-04-06 CN CN201610212629.1A patent/CN105717236B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842679A (en) * | 1973-03-05 | 1974-10-22 | Varian Associates | Automatic sampler apparatus of modular construction |
| JPH0552830A (en) * | 1991-08-29 | 1993-03-02 | Yokogawa Electric Corp | Process gas chromatograph |
| CN2520508Y (en) * | 2002-02-07 | 2002-11-13 | 中国石油化工股份有限公司 | Multi-D gas chromatograph |
| CN103954698A (en) * | 2005-10-06 | 2014-07-30 | Sgs瑞士通用公证行股份有限公司 | Composition analysis of separated vapor and liquid phases using a gas chromatograph |
| CN201069441Y (en) * | 2007-06-26 | 2008-06-04 | 中国华北电力集团公司天津市电力公司 | Standard oil sample manufacturing device for online chromatogram monitoring system correcting the nuclear transformer insulation coil |
| CN102879506A (en) * | 2012-10-12 | 2013-01-16 | 中国工程物理研究院化工材料研究所 | Automatic gas sampling device and using method thereof |
| CN202974959U (en) * | 2012-11-26 | 2013-06-05 | 浙江泛泰仪器有限公司 | Full-automatic gas chromatography sample injector |
| CN105372349A (en) * | 2015-12-09 | 2016-03-02 | 南京华欣分析仪器制造有限公司 | Analysis instrument pneumatic multiport selector valve |
| CN205484227U (en) * | 2016-04-06 | 2016-08-17 | 河南理工大学 | Novel spectrometer is surveyed to constant temperature gaseous phase |
Non-Patent Citations (2)
| Title |
|---|
| 于洋: "《在线分析仪器》", 31 August 2015 * |
| 安捷伦科技（中国）有限公司: "《Agilent 7890B气相色谱仪》", 24 December 2013 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105717236B (en) | 2019-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105974062B (en) | A kind of gas sensor calibrating installation and its calibration method | |
| AU2011221617B2 (en) | Flow regulating system and monitoring device comprising said flow regulating system for the detection of air borne analytes | |
| CN106770738B (en) | Expired gas multicomponent detector with corrected carbon dioxide concentration and detection method | |
| WO2010025601A1 (en) | Self-calibrating gas sensor | |
| CN101000357B (en) | Olfactory instrument and olfactory analysing method of small automatic machine | |
| CN110308216A (en) | The integrated analysis system and its application method of micro permanent foreign gas and water in a kind of gas | |
| CN103380374A (en) | Method for measuring breath alcohol concentration and apparatus therefor | |
| CN102680999B (en) | Automatic temperature/humidity compensation method of electrostatic collecting radon detection efficiency | |
| CN105675358A (en) | VOC (volatile organic compound) sampling system | |
| CN105136707A (en) | Detection device of volatile organic compound content and catalytic oxidation purification efficiency | |
| CN202008464U (en) | Detector for volatile matter in water | |
| CN106093134A (en) | The compensation method of metal oxide sensor array response drift | |
| CN107328882A (en) | Coal volatility and volatile ingredient determine device and assay method | |
| CN109696495A (en) | A kind of VOC monitoring device and method that accurate quantification sampling may be implemented | |
| CN205484227U (en) | Novel spectrometer is surveyed to constant temperature gaseous phase | |
| CN104730284B (en) | Sample wind speed monitoring device and the enthalpy potential method experiment detection device with it | |
| CN209589947U (en) | A kind of paraffin odor analyzer | |
| CN105717236A (en) | Novel constant-temperature gas chromatograph | |
| CN205388571U (en) | Portable micro - gas composition apparatus | |
| CN110657982A (en) | Breather valve capability test system | |
| CN107436328B (en) | Calibration method of transformer insulating oil online chromatographic analyzer | |
| CN202049074U (en) | Gas sampling valve plate device | |
| CN102081038B (en) | Detection device for volatile substance in water and detection method thereof | |
| CN205374113U (en) | Volatile organic compounds's sampling system | |
| CN211477780U (en) | A sampling device for analyzing essence pyrolysis gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xia Daping Inventor after: Wang Xinyi Inventor after: Hou Bin Inventor after: Chen Shanlai Inventor after: Bai Yang Inventor after: Chen Xi Inventor after: Hou Junqi Inventor after: Duan Yu Inventor before: Xia Daping Inventor before: Liu Xile Inventor before: Hou Bin Inventor before: Chen Shanlai Inventor before: Bai Yang Inventor before: Chen Xi Inventor before: Hou Junqi Inventor before: Duan Yu |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |