CN103630429B - A kind of sampler with pressure based on near-infrared spectrum analysis and sampling method - Google Patents
A kind of sampler with pressure based on near-infrared spectrum analysis and sampling method Download PDFInfo
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- CN103630429B CN103630429B CN201310640482.2A CN201310640482A CN103630429B CN 103630429 B CN103630429 B CN 103630429B CN 201310640482 A CN201310640482 A CN 201310640482A CN 103630429 B CN103630429 B CN 103630429B
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Abstract
The present invention relates to a kind of sampler with pressure based on near-infrared spectrum analysis and sampling method, including storage steel bottle, high-pressure rubber pipe, air relief valve, valve and pressure sample storer, air relief valve two ends connect high-pressure rubber pipe, front end high sebific duct connects sample storage steel cylinder, rear end high-pressure rubber pipe connecting valve, the valve other end and pressure sample storer are screwed together, pressure sample storer is by air inlet pipe, connecting tube and storage tube composition, between each pipe, there is packing ring junction, provide the benefit that method is simple, sampling is rapidly, structure is readily accessible and safeguards, achieve gaseous sample measurement analysis near infrared spectrum first, but also can be extended at Raman spectrum, the fields such as infrared spectrum。
Description
Technical field
The present invention relates to a kind of sampling analysis device with pressure and sampling method, particularly to a kind of sampler with pressure based on near-infrared spectrum analysis and sampling method。
Background technology
Near infrared spectrum is between visible ray and mid-infrared, wave-length coverage 700nm-2500nm(4000cm-1-14285cm-1) one section of absorption spectrum, near-infrared spectrum technique is quick because of it, lossless, pollution-free, without destructive, operating technology requires low, online or field quick detection characteristic can be realized, it is widely used in agricultural, food, in the analysis process of the products such as petrochemical industry and medicine, and be generally adopted (instead) and penetrate, diffuse-reflectance, unrestrained (instead) thoroughly the mode such as penetrates, directly sample can be carried out near-infrared spectral measurement, it is made without pretreatment, near infrared spectrum can be applicable to analysed for powder, granule, tablet, limpid liquid, the sample of the different conditions such as turbid solution, but for gaseous sample, it is difficult to carry out qualitative or quantitative judgement by the method for near-infrared spectrum analysis, it is primarily due in sampling process, if what gather is gaseous sample, it is difficult to ensure that the concordance of repeated sampling concentration, the accuracy of the spectrum analysis of the laggard row of every sub-sampling is difficult to ensure, therefore, must provide for a kind of sampling method and device thereof。
Summary of the invention
The present invention is directed to above-mentioned Problems existing, a kind of sampler with pressure that can be used in carrying out near-infrared spectral measurement analysis and sampling method are provided, gaseous sample is pressurized liquefied, at the near infrared spectrum with gathering liquid gas or fluid sample under pressure condition, and then carry out the quick analysis of the qualitative or quantitative sample composition of near infrared spectrum, concrete technical scheme is, a kind of sampler with pressure based on near-infrared spectrum analysis, including storage steel bottle, high-pressure rubber pipe, air relief valve, valve and pressure sample storer, it is characterized in that: air relief valve two ends connect high-pressure rubber pipe, front end high sebific duct connects sample storage steel cylinder, rear end high-pressure rubber pipe connecting valve, the valve other end and pressure sample storer are screwed together, described pressure sample storer is by air inlet pipe, connecting tube and storage tube composition, wherein air inlet pipe is the cylinder of a various outer diameter, the hole of the interior through hole being made up of different pore size and two-port is screw, less one end, aperture is sequentially placed into packing ring, convex plug and spring, convex plug is made to withstand on packing ring endoporus, this end external diameter has screw thread, storage tube is an obstructed pipe, sidewall has a through hole, mouth of pipe external diameter has screw thread, packing ring and quartz glass tube is placed in pipe, connecting tube internal diameter two ends are with female thread, by air inlet pipe, storage tube is screwed into one, between each pipe, there is packing ring junction。
A kind of sampling method with pressure based on near-infrared spectrum analysis, it is characterised in that: adopting gaseous sample is pressurized liquefied, gather liquid gas sample under band pressure condition, sampling method comprises the following steps,
A, gaseous sample is pressurized liquefied, deposit in sample storage steel cylinder；
The pressure of b, per sample storage steel bottle chooses different voltage endurance capabilities and the high-pressure rubber pipe of range ability, air relief valve, valve and pressure sample storer；
C, the front end high sebific duct of sampler air relief valve is connected sample storage steel cylinder；
D, by sample storage steel cylinder be inverted, successively open sample storage steel cylinder, air relief valve, valve switch, enable to enter in liquid form in quartz glass tube with the sample under pressure condition；
E, when quartz glass tube is full of after band press liquid, connecting tube and storage tube are spirally connected closely, are stored in the quartz glass tube of storage tube with press liquid, after having sampled, the switch of closedown valve, air relief valve and sample storage steel cylinder；The pressure sampling bin of connection is taken off from valve。
The invention has the beneficial effects as follows the near-infrared spectral measurement analysis achieving gaseous sample first, method is simple, sampling is rapid, be easy to maintenance, and application is extensive, it may also be used for the gas-sample analysis in the field such as Raman spectrum, infrared spectrum。
Accompanying drawing explanation
Fig. 1 is this structure connection diagram。
Fig. 2 is the pressure sample storer sectional view of the present invention。
Detailed description of the invention
It is sampled as example for heptafluoro-propane extinguishing medium。
Such as Fig. 1, shown in 2, air inlet pipe 5-1 adopts stainless steel material to be made for the cylinder of a various outer diameter, the hole of the interior through hole being made up of different pore size and two-port is screw, less one end, aperture is sequentially placed into packing ring 5-4, convex plug 5-5 and spring 5-6, convex plug 5-5 is made to withstand on packing ring 5-4 endoporus, this end external diameter has screw thread, storage tube 5-3 is an obstructed rustless steel pipe, sidewall has a through hole 5-8, mouth of pipe external diameter has screw thread, packing ring 5-4 and quartz glass tube 5-7 is placed in pipe, 2mm in quartz glass tube 5-7 wall thickness, radius 2mm, voltage endurance capability 2Mpa, adopt the connecting tube 5-2 internal diameter two ends that stainless steel material is made with female thread, by air inlet pipe 5-1, storage tube 5-3 is screwed into one, between each pipe, there is packing ring 5-4 junction, constitute pressure sample storer 5, 2Mpa air relief valve 3 two ends are connected high-pressure rubber pipe 2, front end high sebific duct 2 connects sample storage steel cylinder 1, rear end high-pressure rubber pipe 2 connects ball valve 4, ball valve 4 other end and pressure sample storer 5 are screwed together。
Sampling method, comprises the following steps,
A, gaseous sample is pressurized liquefied, deposit in sample storage steel cylinder 1；
The pressure of b, per sample storage steel bottle chooses the high-pressure rubber pipe 2 of different voltage endurance capabilities and range ability, air relief valve 3, valve 4 and pressure sample storer 5；
C, the front end high sebific duct 2 of sampler air relief valve 3 is connected sample storage steel cylinder 1；
D, by sample storage steel cylinder be inverted, successively open sample storage steel cylinder, air relief valve 3, valve 4 switch, enable to enter in liquid form in quartz glass tube 5-7 with the sample under pressure condition；
E, it is full of after band press liquid as quartz glass tube 5-7, connecting tube 5-2 and storage tube 5-3 is spirally connected closely, it is stored in the quartz glass tube 5-7 of storage tube 5-3 with press liquid, after having sampled, close the switch of valve, air relief valve and sample storage steel cylinder, from valve 4, take off the pressure sampling bin 5 of connection。
The position that the through hole 5-8 of pressure sampling bin 5 is directed at near-infrared analyzer transmission light is placed on near-infrared analyzer, can be acquired analyzing。
Its sampling principle is pressure sample storer 5) air inlet pipe 5-1 and connecting tube 5-2 between have convex plug 5-5 and spring 5-6, when band press liquid enters in pressure sample storer 5 from air inlet pipe 5-1, owing to the elastic force of spring 5-6 is less than the pressure with press liquid, therefore fluid sample with pressure can back down in the convex plug 5-5 quartz glass tube 5-7 entering in storage tube 5-3, now the gas in storage tube 5-3 can overflow from the junction of quartz glass tube 5-7 with packing ring, after quartz glass tube 5-7 is full of band press liquid, connecting tube 5-2 and storage tube 5-3 is spirally connected closely, now the elastic force of the pressure with press liquid in quartz glass tube 5-7 and spring 5-6 is more than the pressure with press liquid entered from air inlet pipe 5-1, convex plug 5-5 is enable to seal air inlet, therefore, band press liquid can be made to stay in quartz glass tube 5-7。Method is simple, be easy to maintenance, as long as after high-pressure rubber pipe, air relief valve, valve and pressure sample storer are connected with gaseous sample storage cylinder fitted, just sampling can be completed in 10 seconds, take off the pressure sample storer equipped with liquid sample and just can carry out near-infrared spectrum analysis, achieving the near-infrared spectral measurement analysis of gaseous sample first, the method and device can be also used for the gaseous sample analysis in the field such as Raman spectrum, infrared spectrum。
Claims (2)
1. the sampler with pressure based on near-infrared spectrum analysis, including storage steel bottle (1), high-pressure rubber pipe (2), air relief valve (3), valve (4) and pressure sample storer (5), it is characterized in that: air relief valve (3) two ends connect high-pressure rubber pipe (2), front end high sebific duct (2) connects sample storage steel cylinder (1), rear end high-pressure rubber pipe (2) connecting valve (4), valve (4) other end and pressure sample storer (5) are screwed together, described pressure sample storer (5) is by air inlet pipe (5-1), connecting tube (5-2) and storage tube (5-3) composition, wherein air inlet pipe (5-1) is the cylinder of a various outer diameter, the hole of the interior through hole being made up of different pore size and two-port is screw, less one end, aperture is sequentially placed into packing ring (5-4), convex plug (5-5) and spring (5-6), convex plug (5-5) is made to withstand on packing ring (5-4) endoporus, this end external diameter has screw thread, storage tube (5-3) is an obstructed pipe, sidewall has a through hole (5-8), mouth of pipe external diameter has screw thread, packing ring (5-4) and quartz glass tube (5-7) is placed in pipe, connecting tube (5-2) internal diameter two ends are with female thread, by air inlet pipe (5-1), storage tube (5-3) is screwed into one, between each pipe, there is packing ring (5-4) junction。
2. the sampling method with pressure based on near-infrared spectrum analysis, it is characterised in that: adopting gaseous sample is pressurized liquefied, gather liquid gas sample under band pressure condition, sampling method comprises the following steps,
A, gaseous sample is pressurized liquefied, deposit in sample storage steel cylinder；
The pressure of b, per sample storage steel bottle chooses the high-pressure rubber pipe (2) of different voltage endurance capabilities and range ability, air relief valve (3), valve (4) and pressure sample storer (5)；
C, the front end high sebific duct (2) of sampler air relief valve (3) is connected sample storage steel cylinder (1)；
D, by sample storage steel cylinder be inverted, successively open sample storage steel cylinder, air relief valve (3), valve (4) switch, enable to enter in liquid form in quartz glass tube (5-7) with the sample under pressure condition；
E, it is full of after band press liquid when quartz glass tube (5-7), connecting tube (5-2) and storage tube (5-3) are spirally connected closely, it is stored in the quartz glass tube (5-7) of storage tube (5-3) with press liquid, after having sampled, closes the switch of valve, air relief valve and sample storage steel cylinder；The pressure sampling bin (5) of connection is taken off from valve (4)。
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| CN105651550B (en) * | 2014-11-10 | 2018-08-14 | 中国石油天然气股份有限公司 | Sampling device is pressed in area |
| CN105954068B (en) * | 2016-05-03 | 2018-11-16 | 国网山东省电力公司青州市供电公司 | Nitrogen cylinder sampler |
| CN110431405B (en) * | 2017-02-06 | 2022-06-14 | 东洋玻璃株式会社 | Glass bottle inspection device |
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| US5058418A (en) * | 1988-05-18 | 1991-10-22 | Newbow Engineering Industries Limited | Reversible adaptor and gas analyzer for tires |
| US5538690A (en) * | 1991-10-21 | 1996-07-23 | Greer; Garry L. | Air quality indicator system for breathing air supplies |
| CN202330071U (en) * | 2011-12-05 | 2012-07-11 | 北京昊诚油气科技有限公司 | High-pressure on-line sampling system |
| CN203587398U (en) * | 2013-12-04 | 2014-05-07 | 公安部天津消防研究所 | Belt pressure sampling device based on near infrared spectrum analysis |
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2013
- 2013-12-04 CN CN201310640482.2A patent/CN103630429B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058418A (en) * | 1988-05-18 | 1991-10-22 | Newbow Engineering Industries Limited | Reversible adaptor and gas analyzer for tires |
| US5538690A (en) * | 1991-10-21 | 1996-07-23 | Greer; Garry L. | Air quality indicator system for breathing air supplies |
| CN202330071U (en) * | 2011-12-05 | 2012-07-11 | 北京昊诚油气科技有限公司 | High-pressure on-line sampling system |
| CN203587398U (en) * | 2013-12-04 | 2014-05-07 | 公安部天津消防研究所 | Belt pressure sampling device based on near infrared spectrum analysis |
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