Bottom-sitting all-weather bed load sediment real-time monitor and measuring method thereof

A real-time monitor and real-time measurement technology, which is applied to the testing of measuring devices, instruments, machines/structural components, etc., can solve the problems of not being able to measure the time change of the sediment transport rate, and not being able to reflect the sediment transport rate, etc., to achieve continuous Sexuality and automation, reasonable design, accurate measurement effect

Active Publication Date: 2014-01-22
NANJING HYDRAULIC RES INST
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be known from the contents of the above invention that this displacement mass measuring device is mainly used to measure the c

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
  • Bottom-sitting all-weather bed load sediment real-time monitor and measuring method thereof
  • Bottom-sitting all-weather bed load sediment real-time monitor and measuring method thereof
  • Bottom-sitting all-weather bed load sediment real-time monitor and measuring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The bottom type all-weather bedding sediment real-time monitoring instrument of the present embodiment has the following structure: figure 1 As shown in the figure, it is composed of three parts: sand collecting, monitoring and sand discharging assembled in the outer cylinder 2, and specifically includes an outer sand collecting cylinder 1 and an inner sand collecting cylinder 2 arranged in the outer cylinder 1, and the outer cylinder 1 is cylindrical. It is used to isolate the influence of the outside world (ie, earth pressure) on the monitoring device in the cylinder, and the inner cylinder 2 is used to store bedding sediment that enters the monitor from the sand inlet 8 . The bottom of the outer cylinder 1 is provided with an underwater pressure gauge 6 whose signal output end is connected to an external control device containing an intelligent device. On the pressure gauge 6, the weight of the sediment in the cylinder can be determined by the underwater pressure gau...

Embodiment 2

[0040] The difference between this embodiment and the first embodiment is that in the second step, the external control device sets the maximum pressure value of the underwater pressure gauge 6, and compares it with the current measured pressure value to determine the amount of sediment in the sand collecting tank. The degree of fullness and whether it is necessary to remove sand in the sand collecting tank, if not, the measured pressure value is less than the maximum pressure value at this time, and the above process is repeated.

Embodiment 3

[0042] The bottom-type all-weather bedding sediment real-time measurement method of this embodiment includes the following steps: bury the whole set of monitoring instruments in the river bottom until the bottom surface of the sand inlet 8 is flush with the surface of the river bed, and the external control device sets the underwater pressure The initial pressure value of the instrument 6 (set the initial pressure value to 0); wait for 1 hour, the external control device collects the measured pressure value of the underwater pressure instrument 6, and compares it with the initial pressure value to determine whether there is sediment in the sand collecting tank , if there is, the measured pressure value is greater than the initial pressure value, the bedding sediment has entered the inner cylinder of the sand collecting cylinder, and the reading of the underwater pressure gauge 6 is regularly observed. Due to the damage to the river bed caused by the burial of the instrument, th...

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 bottom-sitting all-weather bed load sediment real-time monitor and a measuring method thereof. The monitor comprises an outer barrel of a sand collecting barrel and an inner barrel, arranged inside the outer barrel, of the sand collecting barrel, wherein a signal output end and an underwater pressure gauge which contains a smart device and connected with an outer control device are arranged at the bottom of the outer barrel; the top end of the underwater pressure gauge is fixedly connected with the bottom end of the inner barrel; a sand discharge pump is arranged in the inner barrel; a sand flushing pump is arranged outside the sand collecting barrel; controlled ends of the sand discharge pump and the sand flushing pump are connected with the outer control device; and a barrel cover with an annular cross section is arranged at the top end of the outer barrel, a barrel cap is arranged above the barrel cover, and a sand filling port is formed between the barrel cap and the barrel cover. According to the monitor and the measuring method thereof, the design is reasonable, the underwater pressure gauge and the outer control device are matched for use, so that continuity and automation for bed load measurement are achieved, change of the bed load sediment in the river bottom can be measured accurately without influence of environmental factors such as water depth, wave, external sediment and the like, continuous sampling of the bed load sediment in rivers is achieved, and the monitor and the method are suitable for measurement work of bed load sediment discharge of rivers with fine particle sediment.

Description

technical field [0001] The invention relates to a sediment measuring instrument, in particular to a bottom-type all-weather bedding sediment real-time monitor, and a measuring method thereof. Background technique [0002] Bedrock refers to the sediment particles that roll, move, jump or move in layers along the bottom of the river in the water flow. During the movement process, with the strength of the water flow, the bedload can be separated from the suspended weight and the bed sand. The transformation, coupled with the fact that bedding is located at the bottom of the river, and the layer thickness is very small, makes the actual measurement very difficult. There are two main types of bedrock measurement methods: direct measurement method and indirect measurement method. Direct measurement includes sand wave motion measurement method, pit measurement method and sampler method. The first two are limited by the influence of underwater terrain on measurement accuracy, and le...

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): G01M10/00
Inventor 左其华应强窦希萍黄海龙周益人张新周假冬冬
Owner NANJING HYDRAULIC RES INST
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap