CN205280750U - Different silt content velocity of water flow survey devices of self -recording formula - Google Patents

Different silt content velocity of water flow survey devices of self -recording formula Download PDF

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Publication number
CN205280750U
CN205280750U CN201521112483.0U CN201521112483U CN205280750U CN 205280750 U CN205280750 U CN 205280750U CN 201521112483 U CN201521112483 U CN 201521112483U CN 205280750 U CN205280750 U CN 205280750U
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China
Prior art keywords
slip ring
resilient stud
flow velocity
measuring device
concentration range
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CN201521112483.0U
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Chinese (zh)
Inventor
黄�俊
金平伟
姜学兵
李岚斌
向家平
王玉琅
李乐
寇馨月
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Pearl River Hydraulic Research Institute of PRWRC
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Pearl River Hydraulic Research Institute of PRWRC
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/02Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer

Abstract

The utility model discloses a different silt content velocity of water flow survey devices of self -recording formula, the device includes floater, inelastic connection rope, slip -ring, elastic vertical column, answers force transducer and data acquisition and recording ware, the floater is fixed on the slip -ring through inelastic connection rope, and the slip -ring cup joints on elastic vertical column, and the position on elastic vertical column can be along with water level proper motion slide control, the elastic vertical column bottom mounting is at the bottom for the force transducer that answers who detects elastic vertical column bending stress pastes the back side at elastic vertical column, answer force transducer and data acquisition and recording ware to be connected. The utility model has the advantages of simple structure, convenient to use, low in cost, can the historical velocity of flow data of automatic recording, the precision is high.

Description

A kind of from note formula wide sediment concentration range flow velocity measuring device
Technical field
This utility model relates to flow rate of water flow and measures research field, particularly to one from note formula wide sediment concentration range flow velocity measuring device.
Background technology
Domatic and raceway groove flow rate of water flow measures has important function and meaning for domatic and raceway groove research soil and water conservation, but owing to domatic or raceway groove current have its unique features, for instance the depth of water is less, fluidised form is unstable, causes that its flow rate of water flow measures relative difficulty. At present, domatic or raceway groove flow rate of water flow measures many employing following two methods: one is to use contactless device to measure, and this kind of equipment precision is better, but cost high investment is big, not easily promotes the use of. Another kind is to use to measure based on tracer methods such as comparatively traditional color or saline solutions, and this kind of method precision is relatively poor. And above two equipment all cannot avoid the impact that its measurement result is caused by silt content.
Therefore, it is possible to the research being applied to wide sediment concentration range flow velocity measuring device just seems particularly significant.
Utility model content
The purpose of this utility model is in that to overcome prior art shortcoming with not enough, there is provided a kind of from note formula wide sediment concentration range flow velocity measuring device, this device have simple in construction, easy to use, cheap, can automatically log history flow speed data, advantage that precision is high.
The purpose of this utility model is achieved through the following technical solutions: a kind of from note formula wide sediment concentration range flow velocity measuring device, including ball float, inelastic connection rope, slip ring, resilient stud, strain gauge and data acquisition instrument, described ball float is fixed on slip ring by inelastic connection rope, slip ring is socketed on resilient stud, can slide with automatic water level and adjust in the position on resilient stud; Described resilient stud bottom is fixed on the bottom, and the strain gauge for detecting resilient stud bending stress is pasted onto resilient stud back side; Described strain gauge is connected with data acquisition instrument.
Preferably, described ball float is hollow rigid plastic balls.
Further, described floating ball diameter is between 15-30cm.
Preferably, the described inelastic rope that connects is inelastic rigid plastics rope, and diameter is 2-4mm.
Preferably, described slip ring is hollow rigid plastics slip ring, slip ring internal diameter 5-10mm bigger than the diameter of resilient stud.
Preferably, described resilient stud diameter is between 5-15cm, and adopts the plastics with certain coefficient of elasticity or steel material to make.
Concrete, described ball float, inelastic connection rope and slip ring adopt time processing moulding process to complete. Thereby may be ensured that firm and reliable connection between three.
This utility model compared with prior art, has the advantage that and beneficial effect:
1, this utility model relates to a kind of domatic or raceway groove different silt content shallow-layer current flow velocity measuring device, this plant bulk can suitably regulate, this device can automatically gather, record test data for subsequent analysis, and sediment concentration content and distribution of sediment in current are had no special requirements. Therefore, can be widely applied in the shallow-layer current measurement of rate of flows such as domatic in water and soil conservation or raceway groove.
2, this utility model decomposable asymmetric choice net assembles, and small and exquisite portable is easy to use, cheap, safeguards simple, it is possible to record automatically, and precision is better.
What 3, in this utility model, the structure of slip ring and ball float combination can ensure that this device measures is top layer flow rate of water flow, therefore, it is possible to acquisition current surface current speed more really.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the present embodiment.
When Fig. 2 is non-water flow flow regime, the operation principle schematic diagram of the present embodiment.
When Fig. 3 is to have current flow regime, the operation principle schematic diagram of the present embodiment.
Fig. 4 is structural representation during the present embodiment device calibration.
Wherein: 1 ball float, 2 inelastic connection ropes, 3 slip rings, 4 resilient stud, 5 strain gauges, 6 data acquisition instruments, 7 data connecting lines, 8 water storage devices, 9 simulation raceway groove, 10 contactless electronic current meters.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
As shown in Figure 1, 2, the present embodiment is a kind of from note formula wide sediment concentration range flow velocity measuring device, including ball float 1, inelastic connection rope 2, slip ring 3, resilient stud 4, strain gauge 5 and data acquisition instrument 6, wherein the bottom is fixed in resilient stud bottom, diameter is between 5-15cm, adopt elastic good steel, plastics or other alternative material to make, at utmost ensure that its upstream face area is less so that its resistance effect is minimum. Ball float, inelastic connection rope, slip ring are plastics and make, by mould one-shot forming, between be connected with each other, ensureing that junction point is solid and reliable, ball float is hollow rigid plastic balls, and diameter is between 15-30cm, the inelastic rope that connects is inelastic rigid plastics rope, diameter is 2-4mm, and slip ring is hollow rigid plastics slip ring, slip ring internal diameter 5-10mm bigger than the diameter of resilient stud. Slip ring is socketed on resilient stud, freely up and down can slide along resilient stud with fluctuation of water table at water buoyancy downslide rotating ring. Strain gauge is pasted onto resilient stud back side. Under water impact, ball float pulls resilient stud by inelastic connection rope, slip ring, resilient stud is caused to bend, as shown in Figure 3, strain gauge measures this Curved variable in real time, and being uploaded to data acquisition instrument, Curved variable is converted to stress data F by data acquisition instrument.
The work process of the present embodiment is:
1, resilient stud is fixed on the bottom, it is ensured that under initial condition, resilient stud is substantially vertical with the bottom or the water surface.
2, the muddy water sample of differently configured silt content S, measures particle diameter sand grain content D at different levels in muddy water sample; Muddy water is poured in simulation raceway groove with different flow, obtains different in flow rate current, use contactless electronic current meter to obtain current actual flow velocity U, obtain resilient stud bending stress F by strain gauge simultaneously; Set up U and F according to above-mentioned series of experiments data, corresponding relation between S, D, obtain U=f (F, S, D). This step is built upon testing on data basis in a large number, is obtained by regression fit in mathematical statistics.
3, in actually used, ball float bears water flow impact pressure, then pass through inelastic connection rope, slip ring pulls resilient stud, resilient stud is caused to bend, strain gauge measures this Curved variable in real time, and being uploaded to data acquisition instrument, Curved variable is converted to stress data F by data acquisition instrument. In conjunction with sediment concentration S, substitute in formula U=f (F, S, D), slope flow actual flow velocity U can be obtained.
Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted to the described embodiments; other any without departing from the change made under spirit of the present utility model and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.

Claims (6)

1. certainly remember formula wide sediment concentration range flow velocity measuring device for one kind, it is characterized in that, including ball float, inelastic connection rope, slip ring, resilient stud, strain gauge and data acquisition instrument, described ball float is fixed on slip ring by inelastic connection rope, slip ring is socketed on resilient stud, can slide with automatic water level and adjust in the position on resilient stud; Described resilient stud bottom is fixed on the bottom, and the strain gauge for detecting resilient stud bending stress is pasted onto resilient stud back side; Described strain gauge is connected with data acquisition instrument.
2. according to claim 1 from note formula wide sediment concentration range flow velocity measuring device, it is characterised in that described ball float is hollow rigid plastic balls, and diameter is between 15-30cm.
3. according to claim 1 from note formula wide sediment concentration range flow velocity measuring device, it is characterised in that the described inelastic rope that connects is inelastic rigid plastics rope, and diameter is 2-4mm.
4. according to claim 1 from note formula wide sediment concentration range flow velocity measuring device, it is characterised in that described slip ring is hollow rigid plastics slip ring, slip ring internal diameter 5-10mm bigger than the diameter of resilient stud.
5. according to claim 1 from note formula wide sediment concentration range flow velocity measuring device, it is characterised in that described resilient stud diameter is between 5-15cm, and adopts the plastics with certain coefficient of elasticity or steel material to make.
6. according to claim 1 from note formula wide sediment concentration range flow velocity measuring device, it is characterised in that described ball float, inelastic connection rope and slip ring adopt time processing moulding process to complete.
CN201521112483.0U 2015-08-04 2015-12-25 Different silt content velocity of water flow survey devices of self -recording formula Active CN205280750U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105527453A (en) * 2015-08-04 2016-04-27 珠江水利委员会珠江水利科学研究院 Self-recording different sand content water flow rate measuring device and measuring method
CN109029533A (en) * 2018-07-17 2018-12-18 中山大学 The guide rail support mechanism of underwater monitoring equipment and without cofferdam installation method
CN112067840A (en) * 2020-08-28 2020-12-11 南昌工程学院 Pulling force type water flow velocity measuring device

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* Cited by examiner, † Cited by third party
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CN110887534B (en) * 2019-11-07 2020-10-30 中交天航港湾建设工程有限公司 Rainstorm runoff experiment point location arrangement and detection system and method
CN115372219B (en) * 2022-10-24 2023-01-06 北京易科立德生态环境科技有限责任公司 River channel sand content measuring device and method

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GB2343960B (en) * 1998-11-19 2003-06-04 Simon Charles Richards Device for measuring rate of flow of fluid
DE102005051785B4 (en) * 2005-10-28 2009-07-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for turbulence-free measurement of the flow rate and / or flow rate of a fluid
CN103018477A (en) * 2012-12-12 2013-04-03 中南大学 Device for measuring wind speed and direction
CN103353537B (en) * 2013-06-18 2015-03-25 西北农林科技大学 Shallow layer water flow velocity measurement apparatus
CN103389389A (en) * 2013-08-28 2013-11-13 魏巍 Gravity flow velocity sensor and open channel flow velocity and flow rate monitoring device
CN105527453B (en) * 2015-08-04 2018-12-25 珠江水利委员会珠江水利科学研究院 A kind of note formula wide sediment concentration range flow velocity measuring device and measuring method certainly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105527453A (en) * 2015-08-04 2016-04-27 珠江水利委员会珠江水利科学研究院 Self-recording different sand content water flow rate measuring device and measuring method
CN105527453B (en) * 2015-08-04 2018-12-25 珠江水利委员会珠江水利科学研究院 A kind of note formula wide sediment concentration range flow velocity measuring device and measuring method certainly
CN109029533A (en) * 2018-07-17 2018-12-18 中山大学 The guide rail support mechanism of underwater monitoring equipment and without cofferdam installation method
CN109029533B (en) * 2018-07-17 2023-09-12 中山大学 Guide rail supporting mechanism of underwater monitoring equipment and cofferdam-free installation method
CN112067840A (en) * 2020-08-28 2020-12-11 南昌工程学院 Pulling force type water flow velocity measuring device

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CN105527453A (en) 2016-04-27

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