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

Water quality on-line detection method and system

A detection method and detection system technology, which are used in the preparation of test water, material inspection products, and test samples, can solve the problems of easy blockage of the outlet, high cost, easy blockage, etc., to avoid blockage, high reliability, and difficult blocking effect

Active Publication Date: 2009-05-13
FOCUSED PHOTONICS +1
View PDF1 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. It cannot be cleaned and filtered at the same time, that is, it cannot be filtered and sampled continuously, and it is easy to block when filtered, and the cleaning effect is poor
[0006] 2. The structure is more complicated, and it also needs to be equipped with mechanical structures such as reducers and scraping knives
[0007] 3. The cost is high, and components such as electric valves, reducers, scraping blades, differential pressure displays, and programmable controllers are required
[0018] 1. The cost is high, and components such as the water outlet pipe 11, the pinch valve 22, and the waste water chamber 20 are required, and the pinch valve 22 has a large diameter and a high price
[0019] 2. When there is a lot of dirt such as sediment in the waste water, it is easy to block the filter screen during the sampling process, resulting in no water sample taken from the water storage chamber 40
Therefore, the pretreatment device does not support continuous measurement of water samples, and can only achieve repeated intermittent measurement
[0022] 4. The bottoms of the water storage chamber 40 and the waste water chamber 20 are flat, and dirt such as silt in the water sample is easy to deposit on the bottom plane, which can easily block the outlet and cause inaccurate measurement of some components

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
  • Water quality on-line detection method and system
  • Water quality on-line detection method and system
  • Water quality on-line detection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A water quality on-line detection system is used for measuring COD in water samples, comprising a sampling device, a pretreatment device, a detection pool and a detection device connected in sequence.

[0069] Such as image 3 As shown, the pretreatment device includes a water inlet pipe 10 connected to a sampling device, a filter screen 30 , a water storage chamber 40 , and a waste water chamber 20 . The filter screen 30 is arranged between the water storage chamber 40 and the waste water chamber 20, the water inlet pipe 10 is connected to the sampling device, and the angle a between the opening direction of the end of the water inlet pipe 10 and the filter screen 30 is 30°. A water intake 41 and a drain 42 are set on the water storage chamber 40 below the filter screen 30, the water intake 41 is connected to the downstream detection pool through a water intake pipe, the drain 42 is connected to a drain valve 82 through a drain pipe 81, and the water intake 41 is also ...

Embodiment 2

[0086] A water quality online detection system for measuring ammonia nitrogen in water samples, such as Figure 4 Shown, different from embodiment 1 is:

[0087] 1. Removed the homogenizing device.

[0088] 2. The angle a between the opening direction of the end of the water inlet pipe and the filter screen 30 is 8°.

[0089] 3. Rinse the filter with water steam instead of clean water.

[0090] This embodiment also discloses a water quality online detection method, which is different from Embodiment 1 in that:

[0091] 1. There is no homogenization step for stirring the water sample to be tested, and there is no stirring and cleaning step for stirring the water sample in the water storage chamber after the measurement is completed.

[0092] 2. The angle a between the speed direction of the water sample and the filter screen 30 when it passes through the filter screen is 8°.

Embodiment 3

[0094] A water quality online detection system for measuring COD of water samples, such as Image 6 Shown, different from embodiment 1 is:

[0095] 1. Remove the drain valve 82.

[0096] 2. The water storage chamber 40 and the waste water chamber 20 are made of transparent glass.

[0097] 3. The angle a between the opening direction of the end of the water inlet pipe 10 and the filter screen 30 is 20°.

[0098] This embodiment also discloses a method for online detection of water quality, measuring the COD of the water sample, such as Figure 9 shown, including the following steps:

[0099] a. Sampling steps

[0100] The water pump in the sampling device is turned on to obtain the water sample under the measured environment, and transport it to the pretreatment device through the water inlet pipe 10. The angle a between the velocity direction of the water sample and the filter screen 30 is 20°.

[0101] b. Preprocessing steps

[0102] On the one hand, some water samples ...

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 method for on-line detecting water quality, which comprises the following steps: a. sample collecting, wherein, water sample in the test environment is collected and delivered to pretreatment device; b, pretreatment, wherein, water sample flows out from an inlet tube into a water container after flowing through a filter screen, wherein, the angle formed between the water velocity attitude and the filter screen is an acute or a right angle; and c. measuring, wherein, the water sample to be tested is collected from the water container, and the water parameter is obtained by analyzing the test water sample to be tested. The invention also discloses a system for on-line detecting water quality. The invention has the advantages of continuous working, uneasy blockage, low cost, and the like, and the invention can be applied in various water sample on-line analysis.

Description

technical field [0001] The invention relates to water quality analysis, in particular to an online water quality detection method and system. Background technique [0002] The existing water quality online analysis system generally consists of a sampling device, a pretreatment device, a detection pool and a detection device. The sampling device sends the water sample to be tested to the pretreatment device, which filters out various solid impurities in the water sample, such as sludge, aquatic plants, etc., and then sends the filtered water sample to the detection pool, and uses the detection device Detection is carried out to obtain the parameters of the water sample, such as COD and ammonia nitrogen. [0003] The Chinese patent whose notification number is CN2493650Y discloses a fully automatic no-cleaning filter. There is a strip-shaped scraping knife, and the trumpet-shaped interface corresponds to the pressure water flushing port and corresponds to an interval cavity ...

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): G01N33/18G01N1/34
Inventor 陈生龙章松波王健
Owner FOCUSED PHOTONICS
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