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

Infrared spectrum multifunctional detection device for C4F7N mixed gas

A technology of mixed gas and detection device, which is applied in the direction of color/spectral characteristic measurement, measurement device, and material analysis through optical means, which can solve the problems of inconvenient portability, single and limited detection function of detection equipment, and inability to adapt to multiple detections of on-site electrical equipment. Requirements and other issues to achieve the effect of strong demand and practicality

Pending Publication Date: 2021-09-03
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In prior art, in C 4 f 7 For the mixing ratio detection and decomposition component detection of N mixed gas, Fourier transform infrared spectroscopy is routinely used, but the detection equipment is bulky and heavy and not easy to carry, and there are many inconveniences in on-site detection, and portable infrared spectroscopy detection devices have not been reported yet; In addition, the applicable detection function of the existing detection equipment is single and limited, which cannot meet the various detection requirements of on-site electrical equipment inspection

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
  • Infrared spectrum multifunctional detection device for C4F7N mixed gas
  • Infrared spectrum multifunctional detection device for C4F7N mixed gas
  • Infrared spectrum multifunctional detection device for C4F7N mixed gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like figure 1 , a C 4 F 7 The N mixed gas infrared spectrum multifunctional detection device includes a gas cell, a front cover of the gas cell and a rear cover 9 of the gas cell.

[0044] The gas cell includes an outer cylinder and an inner cylinder arranged coaxially, and a partition plate is used to divide the space between the outer cylinder and the inner cylinder into a plurality of detection chambers evenly along the axis direction; There is gas flow; when gas is detected, the gas to be detected is placed in each detection chamber.

[0045] An infrared light source 2 is arranged on the front cover of the gas cell. The center of the infrared light source 2 is facing the cylinder axis of the gas cell. When gas is detected, the infrared light provided by the infrared light source 2 is directly incident on the inner space of the inner cylinder.

[0046] A plurality of photoelectric detection sensors 3 are also arranged on the front cover of the gas cell; one photoe...

Embodiment 2

[0062] In the wavelength of 750 ~ 780cm -1 Under the infrared light, the C 4 F 7 The N mixed gas mixture ratio is detected, including:

[0063] Step 1.1, select a detection room as the reference detection room. The light transmission band of the filter of the reference detection room is different from that of the filters of other detection rooms. The wavelengths of light are the same.

[0064] Step 1.2, to be tested in each room C 4 F 7 When the N mixed gas reaches the detection concentration, the infrared light source is activated, and the infrared light is directed to the gold-plated reflector through the inner space of the cylinder in the gas cell. The gold-plated reflector reflects the infrared light to each filter, and each filter filters the infrared light. , so that the wavelength is 750 ~ 780cm -1 The infrared light is injected into the corresponding detection chamber.

[0065] Step 1.3, the photoelectric detection sensor corresponding to each detection chamber ...

Embodiment 3

[0067] like image 3 , in C 4 F 7 Under the infrared light of the corresponding wavelength band of the decomposition components of the N mixed gas, the C 4 F 7 N mixed gas decomposition components are detected, including:

[0068] Step 2.1, Acquisition C 4 F 7 The absorption band of each decomposed component of the N mixed gas to be measured.

[0069] Step 2.2, select a detection chamber, the light transmission band of the filter of the detection chamber is different from the absorption wavelength band of each decomposed component to be detected, and the detection chamber is used as a reference detection chamber.

[0070] Step 2.3, except for the reference detection chamber, replace the filters of the remaining detection chambers according to the absorption band of each decomposed component to be detected, so that the light transmission band of each filter is the same as the absorption band of each decomposed component to be detected. A correspondence.

[0071] Step 2....

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

A C4F7N mixed gas infrared spectrum multifunctional detection device comprises a gas pool adopting a plurality of detection chamber structures, an infrared light source and a photoelectric detection sensor are arranged on one side of each detection chamber, a replaceable optical filter is arranged on the other side of each detection chamber, and the light transmission wavelengths of the optical filters are different from one another; infrared light emitted by the infrared light source is directly irradiated to the gold-plated reflecting mirror, the gold-plated reflecting mirror reflects the infrared light to each light filter for filtering, so that the infrared light with specific wavelength is irradiated into the corresponding detection chamber, and the photoelectric detection sensor detects the intensity of the infrared light absorbed by the C4F7N mixed gas and converts a light intensity signal into an electric signal; and the infrared light comprises infrared light with the wavelength of 750-780 cm <-1> and infrared light with the wave bands corresponding to decomposition components of the C4F7N mixed gas, and the infrared light and the infrared light are respectively used for detecting the mixing ratio and the decomposition components of the C4F7N mixed gas. Mixing ratio detection and decomposition component detection of C4F7N mixed gas are achieved, multiple detection functions are integrated into one detection device, and the operation and detection efficiency of C4F7N mixed gas electrical equipment is improved.

Description

technical field [0001] The present invention relates to mixed gas mixing ratio detection and decomposition component detection technology, more particularly, to a C 4 F 7 N mixed gas infrared spectroscopy multifunctional detection device. Background technique [0002] SF 6 Gas is widely used in the power industry because of its excellent insulation and arc extinguishing performance. But SF 6 It has a strong greenhouse effect, its atmospheric lifetime is 3200 years, and its global warming potential (GWP) is CO 2 23,500 times, there is a certain threat to the environment. All isobutyrofluoride (C 4 F 7 N, Novec TM 4710) as a new type of environmentally friendly insulating gas, which is compatible with N 2 or CO 2 The mixed gas insulating medium has the characteristics of low toxicity, low GWP, etc., and also has excellent insulating properties, which is very suitable for SF 6 Alternative gas. Currently, C 4 F 7 N mixed gas insulating medium has gradually entered i...

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
IPC IPC(8): G01N21/3518G01N21/27G01N21/03
CPCG01N21/3518G01N21/274G01N21/0303G01N2021/3536G01N2021/0112G01N2021/0378
Inventor 刘伟马凤翔朱峰孙长翔张晓星张引朱正宜严进胡隽宇
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com