CN201773094U - Improved non-methane total hydrocarbon measurement chromatograph - Google Patents

Improved non-methane total hydrocarbon measurement chromatograph Download PDF

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Publication number
CN201773094U
CN201773094U CN2010202683772U CN201020268377U CN201773094U CN 201773094 U CN201773094 U CN 201773094U CN 2010202683772 U CN2010202683772 U CN 2010202683772U CN 201020268377 U CN201020268377 U CN 201020268377U CN 201773094 U CN201773094 U CN 201773094U
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CN
China
Prior art keywords
chromatographic column
improved
chromatograph
carrier gas
way valve
Prior art date
Application number
CN2010202683772U
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Chinese (zh)
Inventor
张文磊
Original Assignee
张文磊
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Priority to CN2010202683772U priority Critical patent/CN201773094U/en
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Publication of CN201773094U publication Critical patent/CN201773094U/en

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Abstract

The utility model discloses an improved non-methane total hydrocarbon measurement chromatograph. The chromatograph comprises a carrier gas conveying device with two gas outlets, a chromatographic column I, a chromatographic column II and a detector, wherein the chromatographic column I is used for measuring the methane chromatogram; the chromatographic column II is used for measuring the total hydrocarbon chromatogram; and the gas outlets of the carrier gas conveying device are communicated with a gas inlet of the chromatographic column I and the gas inlet of the chromatographic column II through a ten-way valve with a quantizing ring. In the improved non-methane total hydrocarbon measurement chromatograph of the utility model, the quantizing and the sending of a sample are realized through one ten-way valve, quantitative sample sending can be finished by operating once, and the chromatograph is simple to operate, has high working efficiency and is favorable for reducing human error by simplifying experimental operation, so that the accuracy of an experimental result of the improved non-methane total hydrocarbon measurement chromatograph of the utility model is also improved.

Description

Improved NMHC is measured chromatograph

Technical field

The utility model relates to a kind of chromatograph, and particularly a kind of improved NMHC is measured chromatograph.

Background technology

Chromatograph is for carrying out the device of chromatographic resolution analysis usefulness, comprising sampling system, detection system, record and data handling system, temperature control system and moving phase control system etc.Wherein gas chromatograph is a kind of instrument that each component in the mixed gas is carried out analyzing and testing.Sample is brought into by carrier gas, by component in the desire detection potpourri there being the chromatographic column of different retention properties, each component is separated, and imports detecting device successively, to obtain the detection signal of each component.According to the precedence that imports detecting device, through contrast, can distinguish out is any component, can calculate each component concentration according to peak heights or peak area.

Traditional chromatograph sampling device mainly is the six-way valve that adopts the band quantity tube, but in detecting mixed gas in the experiment of NMHC content, adopt the six-way valve sample introduction to need two six-way valves, therefore when experimental implementation, need to start twice six-way valve, when quantitative sample, also will operate six-way valve twice, complicated operating process simultaneously, twice sample quantitative work can cause the sample quantitative error simultaneously, reduces the experiment accuracy.

Therefore need a kind of chromatograph that detects NMHC, it is quantitative that its sampling device only needs single job just can finish sample, with the simplification experimental implementation, increases work efficiency and test accuracy.

The utility model content

In view of this, the purpose of this utility model provides a kind of improved NMHC and measures chromatograph, and it is quantitative that its sampling device only needs single job just can finish sample, and experimental implementation is simple, high efficiency, and personal error is little in the test, experiment accuracy height.

The improved NMHC of the utility model is measured chromatograph, include two gas outlets the carrier gas conveying device, be used to measure the methane chromatogram the chromatographic column I, be used to measure the chromatographic column II and the detecting device of total hydrocarbon chromatogram, described carrier gas conveying device gas outlet and chromatographic column I and chromatographic column II air intake opening by a band quantitatively the ten-way valve of ring be communicated with.

Further, described ten-way valve comprises a sample inlet that is communicated with the sample input unit, a sample export, two carrier gas inlets and two carrier gas outlets,

Two gas outlets of described carrier gas conveying device and two carrier gas inlets of ten-way valve are communicated with in man-to-man mode,

Two carrier gas outlets of described ten-way valve are communicated with the air intake opening of chromatographic column I and chromatographic column II respectively in man-to-man mode;

Further, described detecting device is a flame ionization detector;

Further, be filled with GDX-502 in the described chromatographic column I, described chromatographic column II is filled with glass microsphere.

The beneficial effects of the utility model: the improved NMHC of the utility model is measured chromatograph, its sample quantitatively and sample presentation be by a ten-way valve realization, carry out single job and can finish quantitative sample presentation, simple to operate, high efficiency, and simplify experimental implementation and help reducing personal error, thereby also improved the improved NMHC of the utility model and measured chromatograph experimental result accuracy.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is that the improved NMHC of the utility model is measured the structural representation of chromatograph when the quantitative state of sample;

Fig. 2 measures the structural representation of chromatograph when sample is sent into detector state for the improved NMHC of the utility model.

Embodiment

Fig. 1 is that the improved NMHC of the utility model is measured the structural representation of chromatograph when the quantitative state of sample; Fig. 2 measures the structural representation of chromatograph when sample is sent into detector state for the improved NMHC of the utility model.

The improved NMHC of the utility model is measured chromatograph as shown in the figure, include two gas outlets carrier gas conveying device 1, be used for measuring the methane chromatogram chromatographic column I 2, be used to measure the chromatographic column II 3 and the detecting device 4 (present embodiments of total hydrocarbon chromatogram, described detecting device 4 is a flame ionization detector, flame ionization detector is to compound detection sensitivity height in the hydrocarbon, the experimental result accuracy is higher), described carrier gas conveying device 1 gas outlet is with the ten-way valve 6 of quantitative ring 5 to be communicated with chromatographic column I 2 and chromatographic column II 3 air intake openings by one.

The gas circuit structure of described ten-way valve 6 and connected mode are: ten-way valve 6 comprises sample export 6b, two carrier gas inlet 6c and two carrier gas outlet 6d that a sample inlet 6a who is communicated with sample input unit 7, and atmosphere communicate; Two gas outlets of described carrier gas conveying device and two carrier gas inlet 6c of ten-way valve are communicated with in man-to-man mode; Two carrier gas outlet 6d of described ten-way valve are communicated with the air intake opening of chromatographic column I and chromatographic column II respectively in man-to-man mode;

During experiment, at first gas to be measured is injected by sample inlet 6a and quantitatively encircled for 5 (as shown in Figure 1) by sample input unit 7, control the action of ten-way valve 6 spools again ten-way valve 6 gas circuits are switched to sample presentation state (as shown in Figure 2), the 1 input carrier gas of carrier gas conveying device then is blown into flame ionization detector with gas to be measured and detects after chromatographic column.

In the present embodiment: be filled with GDX-502 in the described chromatographic column I 2, the centrifugation to sample gas by GDX-502 can realize the detection to methane concentration in the sample gas; Described chromatographic column II 3 is filled with glass microsphere, can realize the detection of sample gas total hydrocarbon.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (4)

1. an improved NMHC is measured chromatograph, include two gas outlets carrier gas conveying device (1), be used to measure the methane chromatogram chromatographic column I (2), be used to measure the chromatographic column II (3) and the detecting device (4) of total hydrocarbon chromatogram, it is characterized in that: described carrier gas conveying device (1) gas outlet and chromatographic column I (2) and chromatographic column II (3) air intake opening by a band quantitatively the ten-way valve (6) of ring (5) be communicated with.
2. improved NMHC according to claim 1 is measured chromatograph, it is characterized in that: described ten-way valve (6) comprises a sample inlet (6a) that is communicated with sample input unit (7), a sample export (6b), two carrier gas inlets (6c) and two carrier gas outlets (6d);
Two gas outlets of described carrier gas conveying device and two carrier gas inlets (6c) of ten-way valve are communicated with in man-to-man mode;
Two carrier gas outlets (6d) of described ten-way valve are communicated with the air intake opening of chromatographic column I and chromatographic column II respectively in man-to-man mode.
3. improved NMHC according to claim 2 is measured chromatograph, and it is characterized in that: described detecting device (4) is a flame ionization detector.
4. improved NMHC according to claim 3 is measured chromatograph, and it is characterized in that: be filled with GDX-502 in the described chromatographic column I (2), described chromatographic column II (3) is filled with glass microsphere.
CN2010202683772U 2010-07-23 2010-07-23 Improved non-methane total hydrocarbon measurement chromatograph CN201773094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202683772U CN201773094U (en) 2010-07-23 2010-07-23 Improved non-methane total hydrocarbon measurement chromatograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202683772U CN201773094U (en) 2010-07-23 2010-07-23 Improved non-methane total hydrocarbon measurement chromatograph

Publications (1)

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CN201773094U true CN201773094U (en) 2011-03-23

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102590422A (en) * 2012-02-20 2012-07-18 淄博立伟自动化监控设备有限公司 Special detection device for analyzing three-channel mine drainage gas
CN103134876A (en) * 2012-12-29 2013-06-05 聚光科技(杭州)股份有限公司 Chromatographic analysis device and working method thereof
CN104849374A (en) * 2015-06-11 2015-08-19 广东俐峰环保科技有限公司 Non-methane hydrocarbon analysis equipment and method
CN105353048A (en) * 2015-09-23 2016-02-24 南京白云化工环境监测有限公司 Device and method for determination of non-methane total hydrocarbon by gas chromatographic analysis
CN105510478A (en) * 2015-12-30 2016-04-20 聚光科技(杭州)股份有限公司 Online detection device and method of non-methane total hydrocarbon
CN105987967A (en) * 2015-04-03 2016-10-05 常州磐诺仪器有限公司 Device special for detecting non-methane hydrocarbon and benzene substances
CN106501399A (en) * 2016-10-21 2017-03-15 苏州冷杉精密仪器有限公司 A kind of methane and NMHC detection method of content
CN106802333A (en) * 2017-01-23 2017-06-06 宇星科技发展(深圳)有限公司 A kind of NMHC on-line measuring device
CN109870532A (en) * 2019-03-13 2019-06-11 翼捷安全设备(昆山)有限公司 Online non-methane total hydrocarbons analysis system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102590422A (en) * 2012-02-20 2012-07-18 淄博立伟自动化监控设备有限公司 Special detection device for analyzing three-channel mine drainage gas
CN102590422B (en) * 2012-02-20 2014-04-02 淄博立伟自动化监控设备有限公司 Special detection device for analyzing three-channel mine drainage gas
CN103134876A (en) * 2012-12-29 2013-06-05 聚光科技(杭州)股份有限公司 Chromatographic analysis device and working method thereof
CN103134876B (en) * 2012-12-29 2015-04-08 聚光科技(杭州)股份有限公司 Chromatographic analysis device and working method thereof
CN105987967B (en) * 2015-04-03 2018-08-14 常州磐诺仪器有限公司 Non-methane total hydrocarbons and benezene material detect dedicated unit
CN105987967A (en) * 2015-04-03 2016-10-05 常州磐诺仪器有限公司 Device special for detecting non-methane hydrocarbon and benzene substances
CN104849374A (en) * 2015-06-11 2015-08-19 广东俐峰环保科技有限公司 Non-methane hydrocarbon analysis equipment and method
CN105353048A (en) * 2015-09-23 2016-02-24 南京白云化工环境监测有限公司 Device and method for determination of non-methane total hydrocarbon by gas chromatographic analysis
CN105510478A (en) * 2015-12-30 2016-04-20 聚光科技(杭州)股份有限公司 Online detection device and method of non-methane total hydrocarbon
CN106501399A (en) * 2016-10-21 2017-03-15 苏州冷杉精密仪器有限公司 A kind of methane and NMHC detection method of content
CN106802333A (en) * 2017-01-23 2017-06-06 宇星科技发展(深圳)有限公司 A kind of NMHC on-line measuring device
CN109870532A (en) * 2019-03-13 2019-06-11 翼捷安全设备(昆山)有限公司 Online non-methane total hydrocarbons analysis system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhejiang Fu Li Analytical Instrument Co., Ltd

Assignor: Zhang Wenlei

Contract record no.: 2011330000801

Denomination of utility model: Improved non-methane total hydrocarbon measurement chromatograph

Granted publication date: 20110323

License type: Exclusive License

Record date: 20110624

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110323

Termination date: 20130723