Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus for measuring COD by double-light path ultraviolet light absorption method

An absorption method and ultraviolet technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of secondary pollution and complicated operation, and achieve the effect of no secondary pollution, simple operation and maintenance, and low failure rate.

Inactive Publication Date: 2008-11-12
HARBIN INST OF TECH
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of complex operation and secondary pollution in the current monitoring method of COD, and a device for measuring COD by double-light path ultraviolet absorption method is designed

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
  • Apparatus for measuring COD by double-light path ultraviolet light absorption method
  • Apparatus for measuring COD by double-light path ultraviolet light absorption method
  • Apparatus for measuring COD by double-light path ultraviolet light absorption method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Specific implementation mode one: the following combination figure 1 , image 3 Describe this embodiment, this embodiment consists of motor 1, gearbox 2, first shaft sleeve 3, first pin shaft 4, second shaft sleeve 5, second pin shaft 6, third shaft sleeve 7, third pin shaft 8. The first ultraviolet glass tube 9, the second ultraviolet glass tube 10, the third ultraviolet glass tube 11, the low pressure mercury lamp 12, the first photodiode 13, the second photodiode 14, the third photodiode 15 and the fourth photodiode 16 components, the output shaft of the motor 1 is connected with the input shaft of the gearbox 2, and the three synchronously rotating output shafts of the gearbox 2 are respectively connected to the first shaft sleeve 3, the second shaft sleeve 5 and the third shaft sleeve 7, and the third shaft sleeve The top ends of a pin shaft 4, a second pin shaft 6 and a third pin shaft 8 are respectively fixedly connected with the gearbox 2, and are respectively ...

specific Embodiment approach 2

[0033] Specific implementation mode two: the following combination figure 1 , figure 2 Describe this embodiment, the difference between this embodiment and Embodiment 1 is that it also includes a mounting plate 17, three cleaning frames 18 and brushes 19,

[0034] Mounting plate 17 is arranged on the bottom end of gearbox 2, and is positioned at the top of the first ultraviolet glass tube 9, the second ultraviolet glass tube 10 and the third ultraviolet glass tube 11, and the cleaning frame 18 is a U-shaped strip structure, and the cleaning Frame 18 is fixed on the lower surface of mounting plate 17, and the first ultraviolet glass tube 9, the second ultraviolet glass tube 10 and the third ultraviolet glass tube 11 are respectively positioned in three cleaning frames 18, and brushes 19 are elongated, each One or more brushes 19 are fixed on the inner side wall of the cleaning frame 18 , and the brushes 19 are in contact with the outer side wall of the ultraviolet glass tube ...

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 device of a double optical path ultraviolet extinction for measuring a COD, relates to the device for monitoring the COD density, belonging to the ambient water quality monitoring field, which solves the problems of complex operation and secondary pollution when monitoring a COD. A motor output axis of the invention is connected with a transmission case, three output axes of which are respectively rotatingly connected with three axial sleeves; the bottoms of the three axial sleeves are respectively fixed with three ultraviolet glass tubes; the three axial sleeves are respectively provided with pins inwards, wherein the bottom of one pin is fixed with a low pressure mercury lamp, while the bottoms of the other two pins are fixed with two photodiodes in parallel along the vertical direction; the illuminators of the four photodiodes are all toward the low pressure mercury lamp; the included angles between the ultraviolet glass tubes arranged with the low pressure mercury lamp and the other two ultraviolet glass tubes are represented as alpha, wherein alpha is 20 to 180 degrees. The distances between the ultraviolet glass tubes arranged with the low pressure mercury lamp and the other two ultraviolet glass tubes are L1, L2, wherein L1 is not equal to L2.

Description

technical field [0001] The invention relates to a device for monitoring COD concentration, which belongs to the field of environmental water quality monitoring. Background technique [0002] In water quality monitoring, COD (Chemical Oxygen Demand, chemical oxygen demand) monitoring is an important item in environmental monitoring. COD refers to the amount of strong oxidant consumed by reducing substances in the water when wastewater is treated with a strong oxidant under certain conditions, and the result is converted into oxygen content (in mg / L). COD is an important index to evaluate the pollution degree of water body by organic matter, and it is an important parameter for the research of river and industrial wastewater and the evaluation of the treatment effect of sewage treatment plants. The smaller its value, the lighter the water pollution. [0003] There are many methods for the determination of COD, which are mainly divided into chemical methods and physical metho...

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): G01N21/33
Inventor 张昱戴景民李沫
Owner HARBIN INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com