A three-dimensional sampling device for river pollutant transport simulation

A sampling device and pollutant technology, applied in the field of environmental water conservancy engineering research, can solve the problems of flow field disturbance and large volume, and achieve the effect of ensuring representativeness, authenticity and avoiding interference

Inactive Publication Date: 2017-12-19
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the traditional sampling device has a large volume. During the sampling process, the instrument must be placed underwater, which may cause a large disturbance to the flow field at the sampling location.

Method used

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  • A three-dimensional sampling device for river pollutant transport simulation
  • A three-dimensional sampling device for river pollutant transport simulation
  • A three-dimensional sampling device for river pollutant transport simulation

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The present invention will be further elaborated below in combination with specific embodiments and accompanying drawings.

[0023] Taking the ammonia nitrogen diffusion test in Longwangtang Reservoir as an example, the specific implementation steps of a three-dimensional sampling device for river pollutant transport simulation are illustrated. The test was carried out in the downstream channel of Longwangtang Reservoir in Dalian City.

[0024] Step 1: Site layout stage

[0025] In the downstream channel of Longwangtang Reservoir, the water surface is as wide as 68 meters wide and only about 30 meters narrow. The river water is greatly affected by tides. Sampling personnel determine the initial sampling section position through GPS locator, and set a sampling section every 25 meters. The I-shaped wheel adopts the type PN400A type I-shaped wheel, and the cable uses a 10mm thick green nylon rope, and the length of a single cable is 200 meters.

[0026] Step 2: Building...

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PUM

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Abstract

The invention provides a three-dimensional sampling device for simulating transport of river contaminations. The three-dimensional sampling device is composed of a bank control point, a catamaran sampling platform and a multi-point sampler. The device is characterized in that the catamaran sampling platform moves in a river under the control of the bank control point; and when the catamaran sampling platform reaches a sampling position, the multi-point sampler installed on a sampling device takes water samples at different water depths and different distances from an initial point from a to-be-measured section. The three-dimensional sampling device provided by the invention can meet requirements for safety, easy operation, small disturbance to a flow field of river water and the like at the same time, has high sampling efficiency and accurate sampling position and guarantees accuracy and representativeness of the water samples.

Description

technical field [0001] The invention belongs to the technical field of environmental water conservancy engineering research, and relates to a three-dimensional sampling device for river channel pollutant transport simulation. The design device can simultaneously take water samples at different water depths and different starting distances on the monitoring section along the transport path of the pollution mass, and then form a three-dimensional distribution map of the concentration of pollutants in the river. Background technique [0002] In recent years, sudden water pollution incidents have occurred frequently, and it is particularly important to study the law of pollutant diffusion in rivers. The pollutant diffusion field test is to release the tracer in the upstream, analyze the water samples collected downstream, and determine the diffusion law of different pollutants through the data results of the water samples. In the process of river pollutant transport, due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/14G01N1/16G01D21/02
CPCG01D21/02G01N1/14G01N1/16
Inventor 徐向舟张弛刘亚坤王瑞奇宋国栋
Owner DALIAN UNIV OF TECH
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