CN201130174Y - Gas chromatograph system - Google Patents
Gas chromatograph system Download PDFInfo
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- CN201130174Y CN201130174Y CN 200720077138 CN200720077138U CN201130174Y CN 201130174 Y CN201130174 Y CN 201130174Y CN 200720077138 CN200720077138 CN 200720077138 CN 200720077138 U CN200720077138 U CN 200720077138U CN 201130174 Y CN201130174 Y CN 201130174Y
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Abstract
The utility model discloses a gas chromatography, which can monitor the real-time change of the well site light hydrocarbon components C1-C8 in oil and gas and the total hydrocarbon in sample gas. The technical proposal adopted is that, the system comprises a plurality of electronic pressure controllers, an air lock system, a gas four-way block, a plurality of ten-way valves, a chromatographic column box, a plurality of hydrogen flame ionization detectors, a hydrogen flame ionization detection signal amplifier and a modulus signal collecting and processing module; a first pre-column, a first main column, a second pre-column and a second main column are arranged in the chromatographic column box; wherein, the first pre-column and the second pre-column roughly separate the hydrocarbon components in the sample gas; the first main column further separates the hydrocarbon components roughly separated by the first pre-column, and the second main column further separates the hydrocarbon components roughly separated by the second pre-column. The gas chromatography can be applied to the filed of petroleum and natural gas exploration.
Description
Technical field
The utility model relates to a kind of gas chromatograph, relates in particular to a kind of continuous at short notice gas chromatography instrument system that sample gas component and total hydrocarbon are measured of multicolumn combination and multi-detector combination technique that adopts.
Background technology
The general analytic target of the on-the-spot gas chromatograph of existing domestic and international petroleum prospecting is a C1-C5 hydrocarbon component, and the later component of C6 is not carried out the on-line analysis of real-time continuous at the scene.Analytical cycle was from 30 seconds to several minutes, and fixing can not the change of cycle; Control by mechanical pressure maintaining valve, repeatability and stability are all not high.
Be applied at present can survey in the oil-gas exploration and development and analyze, can not guarantee the promptness of analyzing to taking back the laboratory after the lighter hydrocarbons analytical approach of C8 component generally all is on-site sampling; Adopt manual operations fully, operating process impact analysis factor as a result is more, and quantitative error is big; Because the lighter hydrocarbons analysis requires the performance of instrument higher, generally all adopt external gas chromatography instrument, and external gas chromatography instrument costs an arm and a leg, complicated operation, Data Processing difficulty are also bigger, difficulty is applied to the well logging scene.The lighter hydrocarbons analysis is that on-site sampling, preservation, analysis promptness, precision of analysis etc. have been brought many inconvenience in the laboratory, also is unfavorable for the promotion and application of lighter hydrocarbons technology.
Summary of the invention
The purpose of this utility model is to address the above problem, a kind of gas chromatograph is provided, can monitor well site petroleum gas light hydrocarbon component C1-C8 and sample gas total hydrocarbon real-time change, offer the various data that meet the Petroleum Exploration Engineering needs of user, make that oil gas is explained can be more accurate.
The technical solution of the utility model is: the utility model has disclosed a kind of gas chromatography instrument system, wherein, comprising:
A plurality of electronic pressure controllers, wherein the inlet of each those electronic pressure controller receives carrier gas respectively;
The vapour lock system, its inlet is connected with the outlet of each those electronic pressure controller;
Gas four-way piece, its inlet receives sample gas, has a plurality of outlets;
A plurality of ten-way valves, wherein the inlet of each those ten-way valve connects the outlet of this vapour lock system and one of them outlet of this gas four-way piece respectively;
Chromatograph box, its inlet connects the outlet of those ten-way valves, first pre-column, first principal post, second pre-column, second principal post are equipped with in combination in this chromatograph box, wherein this first pre-column carries out rough separating with this second pre-column to the hydrocarbon component in this sample gas, this first principal post further separates the hydrocarbon component after the rough separation of first pre-column, and this second principal post further separates the hydrocarbon component after the rough separation of this second pre-column;
A plurality of flame ionization ditectors, the inlet of one of them flame ionization ditector connect one of them outlet of this gas four-way piece, and the inlet of remaining each those flame ionization ditector connects the outlet of this chromatograph box respectively;
Hydrogen flameionization detection signal amplifier connects the signal output of those flame ionization ditectors;
The modulus signal capture card connects this hydrogen flameionization detection signal amplifier, converts amplified analog signal to digital signal and output;
Processing module connects this hydrogen flameionization detection signal amplifier by this modulus signal capture card, and processing signals is carried out peak identification, and the peak of handling is demarcated, and obtains analysis result at last.
Above-mentioned gas chromatography instrument system, wherein, this chromatograph box has 8 ports, wherein the two ends of this first pre-column link to each other with first port, second port of this chromatograph box, the two ends of this first principal post link to each other with the 3rd port, the 4th port of this chromatograph box, the two ends of this second pre-column link to each other with the five-port of this chromatograph box, the 6th port, and the two ends of this second principal post link to each other with the 7th port, the 8th port of this chromatograph box.
Above-mentioned gas chromatography instrument system, wherein, this system has two electronic pressure controllers, two ten-way valves and three flame ionization ditectors, wherein one of them the outlet of these two ten-way valves links to each other with first port, second port, the 3rd port of this chromatograph box, and the 4th port of this chromatograph box connects one of them in two flame ionization ditectors that link to each other with this chromatograph box; These two ten-way valves wherein another outlet link to each other with five-port, the 6th port, the 7th port of this chromatograph box, the 8th port of this chromatograph box connect in two flame ionization ditectors that link to each other with this chromatograph box wherein another.
Above-mentioned gas chromatography instrument system, wherein, this first pre-column and this first principal post are packed column, analyze the C1～C5 hydrocarbon component in this sample gas.
Above-mentioned gas chromatography instrument system, wherein,, this second pre-column and this second principal post are capillary column, analyze C6～C8 hydrocarbon component.
Above-mentioned gas chromatography instrument system, wherein, this second pre-column and this second principal post are capillary column, analyze C6～C10 hydrocarbon component.
Above-mentioned gas chromatography instrument system, wherein, this system also comprises a control device, connect those electronic pressure controllers to set flow rate of carrier gas, connect this chromatograph box to control the temperature of this chromatograph box, connect those flame ionization ditectors to light a fire automatically, connect those ten-way valves to switch automatically.
Above-mentioned gas chromatography instrument system, wherein, this system also comprises the memory device and the network connection port of human interface device, storage signal analysis result, this human interface device comprises input media, screen output unit, print-out device, and this network connection port is transferred to extraneous computing machine with analysis result.
The utility model contrast prior art has following beneficial effect: the utility model adopts multicolumn combination technique and multi-detector combination technique, can analyze light hydrocarbon component C1-C8 fast at the scene, and simultaneously the sample gas total hydrocarbon be measured.The utility model adopts electronic pressure controller, can be so that instrument be more stable, and reliable, automaticity is higher.Therefore the utility model can make an explanation to hydrocarbon zone at the scene more accurately owing to can analyze the C8 light hydrocarbon component by capillary column.
Description of drawings
Fig. 1 is the theory diagram of the preferred embodiment of gas chromatograph of the present utility model.
Fig. 2 is the inside theory diagram of chromatograph box of the present utility model.
Fig. 3 A, 3B are the mode of operation synoptic diagram of ten-way valve of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 shows the structure of gas chromatography instrument system of the present utility model.See also Fig. 1, the chromatograph system comprises electronic pressure controller 1～2, ten-way valve 3～4, vapour lock system 5, chromatograph box 6, flame ionization ditector FID-A 7, flame ionization ditector FID-B 8, flame ionization ditector FID-C 9, hydrogen flameionization detection signal amplifier 10, gas four-way piece 16, modulus signal capture card 11 and embedded computer system 12, and wherein embedded computer system 12 is equivalent to a processing module.
First pre-column (being pre-column A), 600, first principal post (being principal post A), 610, second pre-column (being pre-column B), 620, second principal post (being principal post B) 630 is equipped with in combination in the chromatograph box 6.Wherein the two ends of first pre-column 600 link to each other with the port 61,62 of chromatograph box 6, the two ends of first principal post 610 link to each other with the port 63,64 of chromatograph box 6, the two ends of second pre-column 620 link to each other with the port 65,66 of chromatograph box 6, and the two ends of second principal post 630 link to each other with the port of chromatograph box 67,68.Wherein the hydrocarbon component in 620 pairs of sample gas of first pre-column 600 and second pre-column is carried out rough separating, 610 pairs of hydrocarbon components after the 600 rough separation of first pre-column of first principal post are further separated, and 630 pairs of hydrocarbon components after the 620 rough separation of second pre-column of second principal post are further separated.First pre-column 600 and first principal post 610 are packed column, are used for the C1～C5 hydrocarbon component of analytic sample gas.Second pre-column 620 and second principal post 630 are capillary column, are used for the C6～C8 hydrocarbon component or the C6～C10 hydrocarbon component of analytic sample gas.
Carrier gas X links to each other with vapour lock system 5 by electronic pressure controller 1, sample gas Z links to each other with the inlet of ten-way valve 3 by gas four-way piece 16, the outlet of vapour lock system 5 links to each other with another inlet of ten-way valve 3, the outlet of ten-way valve 3 links to each other with the port 61～63 of chromatograph box 6, and the port 64 of chromatograph box 6 links to each other with flame ionization ditector FID-A 7.Flame ionization ditector FID-A 7 links to each other with modulus capture card 11 through the signal amplification back of hydrogen flameionization detection signal amplifier 10, and modulus capture card 11 is sent to digital signal embedded computer 12 again.
Carrier gas Y links to each other with vapour lock system 5 by electronic pressure controller 2, sample gas Z links to each other with the inlet of ten-way valve 4 by gas four-way piece 16, the outlet of vapour lock system 5 links to each other with another inlet of ten-way valve 4, the outlet of ten-way valve 4 links to each other with the port 65～67 of chromatograph box 6, and the port 68 of chromatograph box 6 links to each other with flame ionization ditector FID-B 8.Flame ionization ditector FID-B 8 links to each other with modulus capture card 11 through the signal amplification back of hydrogen flameionization detection signal amplifier 10, and modulus capture card 11 is sent to digital signal embedded computer 12 again.
Sample gas Z directly links to each other with flame ionization ditector FID-C 9 by gas four-way piece 16, the signal of flame ionization ditector FID-C 9 links to each other with modulus capture card 11 through the signal amplification back of hydrogen flameionization detection signal amplifier 10, and modulus capture card 11 is sent to digital signal embedded computer 12 again.
Embedded computer 12 comes down to a processing module, handles the signal that 11 transmission of modulus capture card come, and through peak identification, the peak of handling is demarcated, and obtains analysis result at last.
System can also be provided with human interface device, memory device and network connection port.Human interface device can be input medias such as keyboard, mouse, output units such as screen, printer.The result of memory device, stores signal analysis.Network connection port transfers to other computing machines in the network with analysis result.
System also comprises a control device (not shown), can be an independently computing machine, also can insert in the embedded computer 12.This control device connects electronic pressure controller 1,2 to set the flow velocity of carrier gas X, Y, connect chromatograph box 6 and be heated to predetermined temperature with control chromatograph box 6, connect flame ionization ditector FID-A 7, flame ionization ditector FID-B 8, flame ionization ditector FID-C9 to light a fire automatically successively, connect ten- way valve 3,4 automatically the state of ten-way valve is switched according to setting program according to setting program.
The principle of work of gas chromatograph of the present utility model is the instrument made from the gas chromatography principle, can onlinely obtain the rock gas sample of the mud degassing, reaches separation in chromatograph box 6, obtains the qualitative, quantitative data of compound in detecting device 7～9.Gas chromatograph,, is carried by carrier gas and to enter chromatograph box 6 after sample gas is injected by syringe or imported quantity tube (injector) by sample pump as moving phase (carrier gas) with gas.After rock gas component (sample gas) is brought into chromatograph box 6 together by carrier gas, because each compound of rock gas C1-C8 distribution capability different in the gas phase of chromatographic column and stationary phase, along with carrier gas constantly feeds, the rock gas each component is fixed and adsorbs mutually and desorption, produce the fine difference of partition factor, and constantly enlarge this difference.Final each compound has reached separation in chromatographic column.Since in the sample each component in chromatographic column moving phase (gas phase) and stationary phase (liquid phase) between the fine difference of solubility factor, under the flushing of carrier gas, each component is done repeated multiple times dissolving/volatilization between two-phase, repeated dispensing makes each component obtain separating in chromatographic column.With the detecting device that is connected on behind the post each component is come out by the time detecting that flows out then.
Fig. 3 A and 3B show the ten-way valve state of gas chromatograph of the present utility model.For ten-way valve 3, sample gas Z to be analyzed is connected with the quantity tube 13 of chromatographic ten-way valve 3 by transfer line, as shown in Figure 3A, when analyzing, switch in the sample gas Z incision gas circuit by valve, enter pre-column 20 (being first pre-column 600 at this moment) with sample gas Z in the carrier gas X drive quantity tube, the C1-C5 component that will separate is carried out pre-separation, after the C5 component is just in time told from pre-column 20 (being first pre-column 600 at this moment), switch ten-way valve 3 to the blowback state, shown in Fig. 3 B, the C1-C5 component of carrier gas Y this moment after with pre-separation brought principal post 21 (being first principal post 610 at this moment) into, and enters flame ionization ditector FID-A 7 and detect, and with carrier gas X pre-column 20 (being first pre-column 600 at this moment) carried out blowback, sample gas Z continues to fill quantity tube 13, and the blowback of C5+ component is gone out chromatographic column.
For ten-way valve 4, sample gas Z to be analyzed is connected with the quantity tube 13 of chromatographic ten-way valve 4 by transfer line, as shown in Figure 3A, when analyzing, switch in the sample gas Z incision gas circuit by valve, enter pre-column 20 (being second pre-column 610 at this moment) with sample gas Z in the carrier gas X drive quantity tube, the C6-C8 component that will separate is carried out pre-separation, after the C5 component is just in time told from pre-column 20 (being second pre-column 610 at this moment), switch ten-way valve 4 to the blowback state, shown in Fig. 3 B, the C6-C8 component of carrier gas Y this moment after with pre-separation brought principal post 21 (being second principal post 630 at this moment) into, and enters flame ionization ditector FID-B 8 and detect, and with carrier gas X pre-column 20 (being second pre-column 610 at this moment) carried out blowback, sample gas Z continues to fill quantity tube 13, and the blowback of C8+ component is gone out chromatographic column.
So promptly finish an analytical cycle, and whole analytical cycle speed is fast, does not need human intervention, and does not have the chromatographic column pollution problem of chromatographic column long-term work.
The operation steps of the start control of gas chromatograph of the present utility model generally is:
Connect the tracheae line, comprise air, hydrogen and sample gas pipeline.
Opening power, system enters state of a control, by fixed routine work, goes forward side by side into the main control interface, and instrument is set flow rate of carrier gas according to predetermined setting by electronic pressure controller 1,2, and chromatograph box 6 is heated.
Through heat time heating time less than 1 hour, when the temperature of chromatograph box 6 arrives predetermined temperature, system is judged as temperature constant state, this moment, measurement and control program was lighted a fire successively automatically to three flame ionization ditector FID 7～9, all lighted until three flame ionization ditector FID 7～9 flames;
Open sample pump this moment, two ten- way valve 3,4 beginnings are switched automatically according to setting step.Show the signal curve of three FID signals on display screen, system is in normal operating conditions;
Sample gas enters system, shows that on display screen the total hydrocarbon curve rises, and signal appears in two component FID; Automatically gather the FID signal, carry out the FID signal Processing, the peak is discerned, and the peak of handling is demarcated, and obtains analysis result.Can print various analysis results by printer, or give other computing machine result transmission, and the result is preserved by modes such as networks.
At this moment, can not only display analysis state, control procedure and chromatographic data processing procedure on display screen, can also observe many information such as deciding result, chromatogram.The user chooses at random according to actual needs, can show different content, satisfies the different needs that use of user.
In sum, gas chromatograph of the present utility model adopts the multicolumn combination technique, can analyze the C1-C8 component at 120 seconds, perhaps analyzes the C1-C5 component at 30 seconds, can measure the sample gas total hydrocarbon continuously simultaneously; Can be at the scene the C1-C8 light hydrocarbon component deviate from of real-time analysis mud degasifier continuously.Be easily the well site to petroleum gas light hydrocarbon component C1-C8 and sample gas total hydrocarbon real-time change monitor, offer the various data that meet the Petroleum Exploration Engineering needs of user, make that oil gas is explained can be more accurate.
Should understand; the foregoing description provides to those of ordinary skills and realizes or use of the present utility model; those of ordinary skills can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (8)
1, a kind of gas chromatography instrument system is characterized in that, comprising:
A plurality of electronic pressure controllers, wherein the inlet of each those electronic pressure controller receives carrier gas respectively;
The vapour lock system, its inlet is connected with the outlet of each those electronic pressure controller;
Gas four-way piece, its inlet receives sample gas, has a plurality of outlets;
A plurality of ten-way valves, wherein the inlet of each those ten-way valve connects the outlet of this vapour lock system and one of them outlet of this gas four-way piece respectively;
Chromatograph box, its inlet connects the outlet of those ten-way valves, first pre-column, first principal post, second pre-column, second principal post are equipped with in combination in this chromatograph box, wherein this first pre-column carries out rough separating with this second pre-column to the hydrocarbon component in this sample gas, this first principal post further separates the hydrocarbon component after the rough separation of first pre-column, and this second principal post further separates the hydrocarbon component after the rough separation of this second pre-column;
A plurality of flame ionization ditectors, the inlet of one of them flame ionization ditector connect one of them outlet of this gas four-way piece, and the inlet of remaining each those flame ionization ditector connects the outlet of this chromatograph box respectively;
Hydrogen flameionization detection signal amplifier connects the signal output of those flame ionization ditectors;
The modulus signal capture card connects this hydrogen flameionization detection signal amplifier, converts amplified analog signal to digital signal and output;
Processing module connects this hydrogen flameionization detection signal amplifier by this modulus signal capture card, and processing signals is carried out peak identification, and the peak of handling is demarcated, and obtains analysis result at last.
2, gas chromatography instrument system according to claim 1, it is characterized in that, this chromatograph box has 8 ports, wherein the two ends of this first pre-column link to each other with first port, second port of this chromatograph box, the two ends of this first principal post link to each other with the 3rd port, the 4th port of this chromatograph box, the two ends of this second pre-column link to each other with the five-port of this chromatograph box, the 6th port, and the two ends of this second principal post link to each other with the 7th port, the 8th port of this chromatograph box.
3, gas chromatography instrument system according to claim 2, it is characterized in that, this system has two electronic pressure controllers, two ten-way valves and three flame ionization ditectors, wherein one of them the outlet of these two ten-way valves links to each other with first port, second port, the 3rd port of this chromatograph box, and the 4th port of this chromatograph box connects one of them in two flame ionization ditectors that link to each other with this chromatograph box; These two ten-way valves wherein another outlet link to each other with five-port, the 6th port, the 7th port of this chromatograph box, the 8th port of this chromatograph box connect in two flame ionization ditectors that link to each other with this chromatograph box wherein another.
4, gas chromatography instrument system according to claim 3 is characterized in that, this first pre-column and this first principal post are packed column, analyze the C1～C5 hydrocarbon component in this sample gas.
5, gas chromatography instrument system according to claim 4 is characterized in that, this second pre-column and this second principal post are capillary column, analyzes C6～C8 hydrocarbon component.
6, gas chromatography instrument system according to claim 4 is characterized in that, this second pre-column and this second principal post are capillary column, analyzes C6～C10 hydrocarbon component.
7, according to claim 5 or 6 described gas chromatography instrument systems, it is characterized in that, this system also comprises a control device, connect those electronic pressure controllers to set flow rate of carrier gas, connect this chromatograph box to control the temperature of this chromatograph box, connect those flame ionization ditectors to light a fire automatically, connect those ten-way valves to switch automatically.
8, gas chromatography instrument system according to claim 7, it is characterized in that, this system also comprises the memory device and the network connection port of human interface device, storage signal analysis result, this human interface device comprises input media, screen output unit, print-out device, and this network connection port is transferred to extraneous computing machine with analysis result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720077138 CN201130174Y (en) | 2007-12-25 | 2007-12-25 | Gas chromatograph system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720077138 CN201130174Y (en) | 2007-12-25 | 2007-12-25 | Gas chromatograph system |
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| CN201130174Y true CN201130174Y (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200720077138 Expired - Lifetime CN201130174Y (en) | 2007-12-25 | 2007-12-25 | Gas chromatograph system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470105B (en) * | 2007-12-25 | 2011-12-21 | 上海神开石油化工装备股份有限公司 | Hydrocarbon component analysis method and system |
| CN103308634A (en) * | 2013-05-30 | 2013-09-18 | 汪双清 | Device and method for measuring gas content |
| CN103913519A (en) * | 2013-01-05 | 2014-07-09 | 中国地质科学院矿产资源研究所 | Gas chromatography system for natural gas hydrate and detection method for components of natural gas hydrate |
| CN104407073A (en) * | 2014-12-02 | 2015-03-11 | 沈阳东北金属材料研究院有限公司 | Control system and control method of gas chromatograph |
| CN104569207A (en) * | 2015-01-14 | 2015-04-29 | 成都彼斯特生物科技有限公司 | Networked gas chromatograph |
| CN105510503A (en) * | 2015-12-31 | 2016-04-20 | 上海正帆科技股份有限公司 | Analysis device and method of electronic-grade chlorine gas |
| CN105889979A (en) * | 2014-12-26 | 2016-08-24 | 山东鲁南瑞虹化工仪器有限公司 | Automatic ignition device for gas chromatograph |
| CN105954365A (en) * | 2015-12-29 | 2016-09-21 | 上海神开石油化工装备股份有限公司 | Gas logging instrument being suitable for C1-C8 oil gas quick logging |
| CN107238665A (en) * | 2017-06-07 | 2017-10-10 | 苏州冷杉精密仪器有限公司 | Volatile organic matter detection device in a kind of air |
| CN107422058A (en) * | 2017-06-22 | 2017-12-01 | 国家地质实验测试中心 | The on-line automatic sampling system of gas hydrate dissociation gas gas chromatographic analysis and method |
| CN115327015A (en) * | 2022-07-23 | 2022-11-11 | 上海欧申科技有限公司 | Continuous light hydrocarbon chromatographic analysis method, system, computer equipment and computer readable storage medium |
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2007
- 2007-12-25 CN CN 200720077138 patent/CN201130174Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470105B (en) * | 2007-12-25 | 2011-12-21 | 上海神开石油化工装备股份有限公司 | Hydrocarbon component analysis method and system |
| CN103913519A (en) * | 2013-01-05 | 2014-07-09 | 中国地质科学院矿产资源研究所 | Gas chromatography system for natural gas hydrate and detection method for components of natural gas hydrate |
| CN103913519B (en) * | 2013-01-05 | 2015-09-09 | 中国地质科学院矿产资源研究所 | Gas chromatography system for natural gas hydrate and detection method for components of natural gas hydrate |
| CN103308634A (en) * | 2013-05-30 | 2013-09-18 | 汪双清 | Device and method for measuring gas content |
| CN103308634B (en) * | 2013-05-30 | 2015-11-04 | 汪双清 | Air content measurement mechanism and method |
| CN104407073A (en) * | 2014-12-02 | 2015-03-11 | 沈阳东北金属材料研究院有限公司 | Control system and control method of gas chromatograph |
| CN104407073B (en) * | 2014-12-02 | 2016-03-02 | 沈阳东北金属材料研究院有限公司 | A kind of control system of gas chromatograph and control method |
| CN105889979A (en) * | 2014-12-26 | 2016-08-24 | 山东鲁南瑞虹化工仪器有限公司 | Automatic ignition device for gas chromatograph |
| CN105889979B (en) * | 2014-12-26 | 2020-06-12 | 山东鲁南瑞虹化工仪器有限公司 | Automatic ignition device of gas chromatograph |
| CN104569207A (en) * | 2015-01-14 | 2015-04-29 | 成都彼斯特生物科技有限公司 | Networked gas chromatograph |
| CN105954365B (en) * | 2015-12-29 | 2018-03-02 | 上海神开石油化工装备股份有限公司 | A kind of mud logging unit suitable for the quick well logging of C1 C8 oil gas |
| CN105954365A (en) * | 2015-12-29 | 2016-09-21 | 上海神开石油化工装备股份有限公司 | Gas logging instrument being suitable for C1-C8 oil gas quick logging |
| CN105510503A (en) * | 2015-12-31 | 2016-04-20 | 上海正帆科技股份有限公司 | Analysis device and method of electronic-grade chlorine gas |
| CN107238665A (en) * | 2017-06-07 | 2017-10-10 | 苏州冷杉精密仪器有限公司 | Volatile organic matter detection device in a kind of air |
| CN107422058A (en) * | 2017-06-22 | 2017-12-01 | 国家地质实验测试中心 | The on-line automatic sampling system of gas hydrate dissociation gas gas chromatographic analysis and method |
| CN115327015A (en) * | 2022-07-23 | 2022-11-11 | 上海欧申科技有限公司 | Continuous light hydrocarbon chromatographic analysis method, system, computer equipment and computer readable storage medium |
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