Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Nozzle variable diameter plug-in sampler

A plug-in, sampler technology, applied in the direction of sampling devices, etc., can solve the problems of cumbersome operation, polluted samples, and long time consumption, and achieve the effects of improving collection efficiency, slow change of flow direction, and avoiding artificial pollution

Inactive Publication Date: 2015-09-30
INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) Fire hoses, transparent pressure-resistant plastic hoses, raw material belts, etc. used in the sample collection device are likely to contaminate the samples and distort the samples; especially during the first few times of use, the harmful components released by the materials used have a negative impact on the samples. The quality of the sample can have a big impact, contaminating the sample
[0008] (2) The sample collection device has many parts and complex structure, with a total weight of more than 80kg, which is bulky and inconvenient to carry
[0009] (3) On-site assembly procedures are complex, cumbersome and time-consuming
Some parts adopt American standard, which is not conducive to the connection between each other, and the operation is inconvenient
[0010] (4) Cavitation is prone to occur at the turning and variable diameter parts of the sample collection four-way and the sample flowing through the pipeline. When the vacuum in the cavitation is greater than the saturated vapor pressure of some volatile substances or semi-volatile substances in water , which will cause the overflow and loss of these volatile or semi-volatile substances, which will distort the sample
[0012] (6) When the head or power of the pump is large, the discharge valve installed on the head of the fire hose will swing left and right due to the reaction force of the water outlet from the nozzle. If the control is not firm, it will pose a threat of impact to the operator and surrounding objects
[0013] (7) The maximum size of the suction pump nozzle that the sample collection device can be connected to is DN100. For pump pipes larger than this size on site, sampling operations cannot be performed because they cannot be connected.
[0016] The sample error is too large, which sometimes leads to conclusions that the evaluation results are diametrically opposed to the actual situation
If the sample collection process causes the pollutants in the sample to overflow and lose more, resulting in a lower indoor detection value than the actual value, it is possible to evaluate the polluted waters as unpolluted or lightly polluted waters, and the pollution is not taken seriously. Continuing to use it in production and life will eventually increase the degree of pollution and directly affect the quality of life of the people. Long-term use in production, living and drinking will cause physical damage to the people and directly affect the healthy development of the national economy.
[0017] During the sample collection process, the water sample is subject to improper use of the sampler material, which increases the content of pollutants in the sample, making the indoor detection value higher than the actual value, and it is possible to classify the unpolluted or lightly polluted area as Areas that are polluted or heavily polluted, on the one hand, waste the cost of treatment, and on the other hand, affect the mood of the people who do not know the truth, which is not conducive to social stability

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
  • Nozzle variable diameter plug-in sampler
  • Nozzle variable diameter plug-in sampler
  • Nozzle variable diameter plug-in sampler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] Such as figure 1 As shown, the sampler of the present invention includes a steady flow buffer tube 9, a pump tube connection mechanism, a diverter pressure regulating valve, a pressure gauge 7, an arc-shaped sampling core tube 22, a sampling hose 1, and a concentric flow regulator.

[0060] The steady-flow buffer tube 9 is a cylindrical tube body made of 304 stainless steel with openings at both ends. The upper port of the tube body is provided with a convex edge and a pump tube connection mechanism to realize the output of the pump tube with the polluted water sample. The lower end of the steady flow buffer pipe 9 is provided with a downwardly extending bottleneck, and a shunt pressure regulating valve is arranged in the bottleneck to adjust the water flow pressure of the polluted water sample in the pipe body by adjusting the opening. A pressure gauge 7 is installed on the pipe wall of the steady-flow buffer pipe 9 for detecting the water flow pressure of the polluted...

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 relates to a pipe orifice variable plug-in type sampling instrument which structurally comprises a steady flow buffer pipe used for receiving a pumped polluted water sample and steadily conveying the polluted water sample, a pump pipe connecting mechanism fixedly connected with a polluted water sample output pump pipe, a flow dividing pressure regulating valve used for regulating the pressure of the water flow of the polluted water sample, a pressure gauge for detecting the pressure of the water flow, an arc sampling core pipe fixed in the steady flow buffer pipe, a sampling hose connected with an outward extending end of the arc sampling core pipe, and a concentric type flow regulator used for regulating the flow of the collected water sample. The sampling instrument provided by the invention changes the composition, the structure and the working principle of an original organic matter polluted water sample collecting device, and has the characteristics of small size, light weight, wide application range, convenience for carrying and installing, simplicity in operation, safe use, avoidance of polluting the sample in the collecting process, etc., so that the fidelity of the collected sample is increased, the sample collecting cost is lowered, the safety of staffs and equipment is guaranteed, and the universality of the sampling instrument is improved.

Description

technical field [0001] The invention relates to a collection device for water samples containing volatile and semi-volatile substances, in particular to a plug-in sampler with a variable diameter nozzle. Background technique [0002] Due to the particularity of volatile and semi-volatile substances contained in water samples polluted by organic matter, the collection of samples is different from other water samples. [0003] At present, the commonly used method of collecting water samples contaminated by organic matter is to fasten the fire hose with a hose clamp at the mouth of the pump pipe where the contaminated water sample is taken, and then collect the sample through the four-way diversion method. The sampling components used mainly include sample collection four-way, four-way diverter, lined fire hose, hose clamps, large and small pipe joints, straight pipes, quick-connect snap rings, pressure gauges, socket-type connection towers, and pressure regulating valves , di...

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 Patents(China)
IPC IPC(8): G01N1/14
Inventor 温吉利崔海炜田言亮周冰杨柳张云
Owner INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products