CN109060448A - A kind of suspended load sampler obtaining real-time relative position and its application method - Google Patents

A kind of suspended load sampler obtaining real-time relative position and its application method Download PDF

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Publication number
CN109060448A
CN109060448A CN201811079210.9A CN201811079210A CN109060448A CN 109060448 A CN109060448 A CN 109060448A CN 201811079210 A CN201811079210 A CN 201811079210A CN 109060448 A CN109060448 A CN 109060448A
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China
Prior art keywords
probe tube
sensor
suspended load
distance
water level
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CN201811079210.9A
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CN109060448B (en
Inventor
刘春晶
曹文洪
丁兆亮
谷蕾蕾
鲁婧
祁伟
张治昊
胡健
王玉海
关见朝
解刚
朱毕生
赵慧明
赵志文
魏向阳
赵杰
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/16Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels

Abstract

The present invention relates to suspended load samplers and its application method that one kind can obtain real-time relative position.The present invention uses water level sensor and terrain sensor, the bed morphology height change information as caused by sediment movement can be obtained simultaneously, and the accuracy of sampling is improved away from bed surface absolute position and relative water depth position using the information real-time control suspended load sampler;The present invention takes full advantage of suspended load concentration along the rule of vertical distributing, multiple probe tubes are apart from exponentially-increased distribution, the minimal number of probe tube that can sufficiently reflect suspended load concentration distribution features is provided in limited available range, not only reduce interference of the probe tube to water flow, but also improve sampling work efficiency.

Description

A kind of suspended load sampler obtaining real-time relative position and its application method
Technical field
The present invention relates to water conservancy project field of measuring technique, and in particular to one kind can obtain the suspended load sampling of real-time relative position Device and its application method.
Background technique
A variety of method for automatic measurement, including photoelectric method, ultrasonic wave are had been developed to the measurement of suspended load silt content at present Method, laser method etc., but most direct, most accurate, most reliable method be still to silt carrying flow sample, then to institute's water sampling into The method of row filtering weighing, institute's water sampling bottle method or filtering drying weighing obtains silt content.
Existing sampling method is to protrude into water flow using probe tube, rubber or plastic flexible pipe is connected probe tube, using siphon Or the method drawn water takes out silt carrying flow, is analyzed to obtain silt content to taken arsenicbearing gold ores sample.Generally use L-type sampling Pipe, bottom face water (flow) direction, top connects hose, then water flow is sucked out;Probe tube is typically secured on stylus, is manually moved The movement of dynamic stylus, obtains the silt content of different elevations.This method has deficiency at two, first is that vertical distance generally manually moves And reading, and usually every time can only be to a position sample, inefficiency;Second is that when Scour and Accretion, bottom occurs in experimental tank When there are sediment siltation or bottom sediment in portion by current scour, the distance of sampler to bottom changes, with specified probe tube away from It is had differences between bed surface height, affects the accuracy of sampling.Since suspended load silt content concentration is usually index along vertical line Distribution, it is higher apart from the nearlyr silt content of bed surface, therefore due to distance change caused by silt content can have greatly changed, from And affect the accuracy and reliability of suspended load sampling.
Summary of the invention
Technical problem to be solved by the invention is to provide the suspended load samplers that one kind can obtain real-time relative position And its application method, solve the problems, such as that the accuracy and reliability of suspended load sampling is insufficient.
The technical scheme to solve the above technical problems is that a kind of suspended load that can obtain real-time relative position takes Sampling device, including sampling plate, elevator, water level sensor and terrain sensor are successively arranged from bottom to up on the sampling plate First probe tube, the second probe tube, third probe tube and the 4th probe tube, the top of the sampling plate by lead screw of elevator with Elevator is connected, and the swivel bearing of the elevator is connected to the motor, and the elevator side is connected by water level sensor hack lever Water receiving level sensor, the sampling plate also pass through terrain sensor hack lever connection terrain sensor, the motor, water level sensor It is connect with control terminal with terrain sensor.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the distance between the 4th probe tube and third probe tube be third probe tube and the second probe tube it Between 2 times of distance, the distance between the third probe tube and the second probe tube be the second probe tube and the first probe tube it Between 2 times of distance.
Further, the terrain sensor hack lever is located at sampling plate lower part, the working face of the terrain sensor and first Probe tube is in same level;The water level sensor measuring staff is located in the middle part of elevator, and the water level sensor and landform pass Sensor is located on same vertical line.
Further, the water level sensor and terrain sensor are ultrasonic sensor.
Further, the control terminal includes mobile phone, computer and PC.
A kind of suspended load sampler application method obtaining real-time relative position, comprising the following steps:
S1, motor drive elevator duty is controlled by control terminal, make the first probe tube, the second probe tube, third sampling Pipe and the 4th probe tube are at the underwater height of quasi- sampling;
S2, when bed surface changes, its working face and bed surface distance d will be measured by terrain sensor2Pass control back End processed;
S3, motor movement is controlled by control terminal, makes distance d2Reach preset value;
S4, its working face and water surface distance d are measured by water level sensor1And pass control terminal back;
S5, pass through distance d1With distance d2Calculate the height value H of the water surface2, terrain sensor height value H3With the height of bed surface Angle value H4
Further, the height value H of the water surface2, terrain sensor height value H3With the height value H of bed surface4Calculating it is public Formula are as follows:
H2=H1-d1 (1)
H3=H1-d3 (2)
H4=H3-d2 (3)
In above formula, H1Height for water level sensor working face apart from bed surface, the as height of elevator, d3For water level Working sensor face is at a distance from terrain sensor working face.
The beneficial effects of the present invention are:
(1) present invention uses water level sensor and terrain sensor, can obtain the bed as caused by sediment movement simultaneously Face change information, and using the information to real-time control suspended load sample away from bed surface absolute position and relative water depth position, mention The high accuracy of sampling;
(2) present invention takes full advantage of suspended load concentration along the rule of vertical distributing, and multiple probe tube distances are increased by index Under the premise of capable of sufficiently reflecting suspended load concentration distribution features, minimum number is arranged in long distribution in limited available range Probe tube had not only reduced the interference caused by water flow as probe tube, but also has improved sampling work efficiency.
Detailed description of the invention
Fig. 1 is structure of the invention schematic diagram;
Fig. 2 is the method for the present invention flow chart.
In attached drawing, parts list represented by the reference numerals are as follows:
1, sampling plate, the 2, the 4th probe tube, 3, three probe tubes, the 4, second probe tube, the 5, first probe tube, 6, elevator silk Bar, 7, elevator, 8, motor, 9, water level sensor hack lever, 10, water level sensor, 11, terrain sensor hack lever, 12, landform biography Sensor.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the invention.
As shown in Figure 1, a kind of suspended load sampler that can obtain real-time relative position, including sampling plate 1, elevator 7, Water level sensor 10 and terrain sensor 12, be successively arranged on sampling plate 1 from bottom to up the first probe tube 5, the second probe tube 4, The top of third probe tube 3 and the 4th probe tube 2, sampling plate 1 is connected by lead screw of elevator 6 with elevator 7, elevator 7 Swivel bearing is connected with motor 8, and 7 side of elevator connects water level sensor 10 by water level sensor hack lever 9, and sampling plate 1 is also By terrain sensor hack lever 11 connect terrain sensor 12, motor 8, water level sensor 10 and terrain sensor 12 with control End connection.
In embodiments of the present invention, the distance between the 4th probe tube 2 and third probe tube 3 are third probe tube 3 and the 2 times of the distance between two probe tubes 4, the distance between third probe tube 3 and the second probe tube 4 are the second probe tube 4 and the 2 times of the distance between one probe tube 5.
In embodiments of the present invention, terrain sensor hack lever 11 is located at 1 lower part of sampling plate, the working face of terrain sensor 12 With the first probe tube 5 in same level;Water level sensor measuring staff 9 is located at 7 middle part of elevator, water level sensor 10 and landform Sensor 12 is located on same vertical line.
In embodiments of the present invention, water level sensor 10 and terrain sensor 12 are ultrasonic sensor.
In embodiments of the present invention, control terminal includes mobile phone, computer and PC.
As shown in Fig. 2, a kind of suspended load sampler application method that can obtain real-time relative position, including following step It is rapid:
S1, motor drive elevator duty is controlled by control terminal, make the first probe tube, the second probe tube, third sampling Pipe and the 4th probe tube are at the underwater height of quasi- sampling;
S2, when bed surface changes, its working face and bed surface distance d will be measured by terrain sensor2Pass control back End processed;
S3, motor movement is controlled by control terminal, makes distance d2Reach preset value;
S4, its working face and water surface distance d are measured by water level sensor1And pass control terminal back;
S5, pass through distance d1With distance d2Calculate the height value H of the water surface2, terrain sensor height value H3With the height of bed surface Angle value H4
In embodiments of the present invention, the height value H of the water surface2, terrain sensor height value H3With the height value H of bed surface4's Calculation formula are as follows:
H2=H1-d1 (1)
H3=H1-d3 (2)
H4=H3-d2 (3)
In above formula, H1Height for water level sensor working face apart from bed surface, the as height of elevator, d3For water level Working sensor face is at a distance from terrain sensor working face.
4 probe tubes are used in the present invention, can also increase probe tube according to actual needs, the distance between probe tube is also May be configured as: the distance between the 4th probe tube 2 and third probe tube 3 between third probe tube 3 and the second probe tube 4 away from From 1.5 times, the distance between third probe tube 3 and the second probe tube 4 are between the second probe tube 4 and the first probe tube 5 1.5 times of distance.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (7)

1. the suspended load sampler that one kind can obtain real-time relative position, which is characterized in that including sampling plate (1), elevator (7), water level sensor (10) and terrain sensor (12) are successively arranged the first probe tube on the sampling plate (1) from bottom to up (5), the second probe tube (4), third probe tube (3) and the 4th probe tube (2) pass through elevator above the sampling plate (1) Screw rod (6) is connected with elevator (7), and the swivel bearing of the elevator (7) is connected with motor (8), elevator (7) side Water level sensor (10) are connected by water level sensor hack lever (9), the sampling plate (1) also passes through terrain sensor hack lever (11) It connects terrain sensor (12), the motor (8), water level sensor (10) and terrain sensor (12) are connect with control terminal.
2. the suspended load sampler according to claim 1 for obtaining real-time relative position, which is characterized in that described The distance between four probe tubes (2) and third probe tube (3) are the distance between third probe tube (3) and the second probe tube (4) 2 times, the distance between the third probe tube (3) and the second probe tube (4) are the second probe tube (4) and the first probe tube The distance between (5) 2 times.
3. the suspended load sampler according to claim 1 for obtaining real-time relative position, which is characterized in that describedly Shape sensor hack lever (11) is located at sampling plate (1) lower part, and the working face and the first probe tube (5) of the terrain sensor (12) exist In same level;The water level sensor measuring staff (9) is located in the middle part of elevator (7), the water level sensor (10) and landform Sensor (12) is located on same vertical line.
4. the suspended load sampler according to claim 1 for obtaining real-time relative position, which is characterized in that the water Level sensor (10) and terrain sensor (12) are ultrasonic sensor.
5. the suspended load sampler according to claim 1 for obtaining real-time relative position, which is characterized in that the control End processed includes mobile phone, computer and PC.
6. the suspended load sampler application method that one kind can obtain real-time relative position, which comprises the following steps:
S1, by control terminal control motor drive elevator duty, make the first probe tube, the second probe tube, third probe tube and 4th probe tube is at the underwater height of quasi- sampling;
S2, when bed surface changes, its working face and bed surface distance d will be measured by terrain sensor2Pass control terminal back;
S3, motor movement is controlled by control terminal, makes distance d2Reach preset value;
S4, its working face and water surface distance d are measured by water level sensor1And pass control terminal back;
S5, pass through distance d1With distance d2Calculate the height value H of the water surface2, terrain sensor height value H3With the height value of bed surface H4
7. the suspended load sampler application method according to claim 6 for obtaining real-time relative position, feature exist In the height value H of the water surface2, terrain sensor height value H3With the height value H of bed surface4Calculation formula are as follows:
H2=H1-d1 (1)
H3=H1-d3 (2)
H4=H3-d2 (3)
In above formula, H1Height for water level sensor working face apart from bed surface, the as height of elevator, d3For level sensor Device working face is at a distance from terrain sensor working face.
CN201811079210.9A 2018-09-14 2018-09-14 Suspended load sampling device capable of acquiring real-time relative position and application method thereof Active CN109060448B (en)

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