Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device for using pipeline gas as carrier gas of chemical analysis instrument

A pipeline gas and purification device technology, applied in scientific instruments, instruments, measuring devices, etc., can solve problems such as incomplete purity of bottled gas, analysis deviation, bottled gas pollution, etc., and achieve carrier gas flow and purity stability improvement, The effect of improving the stability of the instrument operation and reducing the risk of potential safety hazards

Inactive Publication Date: 2016-02-24
南京华欣分析仪器制造有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Second, the purity of the bottled gas is not completely consistent, and the purity of each bottle is relatively different, which is likely to cause analysis deviations; in addition, the trace impurities remaining in the cylinder cleaning will also cause certain pollution to the bottled gas, which in turn will cause damage to the chromatograph. Contamination, which can easily damage the precision measuring elements of the chromatograph
[0006] The third is that the operation process of replacing the gas cylinder is cumbersome; when changing the gas cylinder, it is necessary to repeatedly switch the gas cylinder and the pressure reducing valve to remove the air in the pressure reducing valve cavity. Leakage of the carrier gas path will cause baseline drift and noise, and affect the sensitivity of the discharge detector. In addition, it is easy to carry some impurities into the gas path system of the chemical analysis instrument during the replacement process, causing instrument failure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for using pipeline gas as carrier gas of chemical analysis instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The bottle loading gas and pipeline carrier gas used in the following specific embodiments are all argon, the chemical analysis instrument is a chromatograph, and the purification device of the chemical analysis instrument is a chromatograph purifier.

[0019] In the specific implementation of this application, the external gas source is pipeline argon, the purity of argon is ≧99.999%, which fully meets the requirements of carrier gas, and the quality is stable, and the pressure of argon in the pipe network is maintained at 1.5-2.2MPa.

[0020] Depend on figure 1 As shown, the device for using the pipeline gas as the carrier gas of the chromatograph includes a pipeline carrier gas supply pipeline drawn from an argon pipeline used as an external gas source, and the pipeline carrier gas supply pipeline includes gas source pipelines 1 connected in series. , the first pressure gauge 2, the first shut-off valve 3, the first pressure reducing valve 4, the second pressure gaug...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device for using pipeline gas as carrier gas of a chemical analysis instrument. The device uses gas of a pipeline gas source with purity meeting carrier gas requirements as the carrier gas of the chemical analysis instrument, and comprises a pipeline carrier gas feeding pipe which is led from the pipeline serving as the carrier gas source, wherein the pipeline carrier gas feeding pipe is connected with a purification device of the chemical analysis instrument. An existing bottled carrier gas feeding pipe can also be connected with the pipeline carrier gas feeding pipe in parallel and then connected with the purification device of the chemical analysis instrument. According to the device, existing resources are utilized, chemical analysis cost is reduced, operation safety and stability are improved, and utilization efficiency is high.

Description

technical field [0001] This application belongs to the field of industrial gas chemical analysis. Background technique [0002] In gas chromatography, the mobile phase is gas, which is called carrier gas. The function of the carrier gas is to carry the gas sample or the vaporized sample gas into the chromatographic column at a certain flow rate for separation, and then bring the separated components into the detector for detection, and finally flow out of the chromatographic system to be emptied Or collection, the carrier gas only plays a role of carrying and does not participate in separation. [0003] Domestic laboratories for industrial gas analysis usually use high-purity gases loaded in high-pressure gas cylinders (referred to as: cylinder-loaded gas), such as argon, helium, etc., as carrier gases. The use of bottled gas mainly has the following defects: [0004] One is that the container loaded with the carrier gas is a high-pressure steel cylinder, such as a high-p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/26
CPCG01N30/26
Inventor 杨立新
Owner 南京华欣分析仪器制造有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products