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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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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sampling
sensor
distance
water level
level sensor
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CN109060448B (en
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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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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Earth Drilling (AREA)

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)

1.一种可获取实时相对位置的悬移质取样装置，其特征在于，包括取样板(1)、升降机(7)、水位传感器(10)和地形传感器(12)，所述取样板(1)上从下至上依次设有第一取样管(5)、第二取样管(4)、第三取样管(3)和第四取样管(2)，所述取样板(1)的上方通过升降机丝杆(6)与升降机(7)相连，所述升降机(7)的旋转轴承与电机(8)相连，所述升降机(7)一侧通过水位传感器架杆(9)连接水位传感器(10)，所述取样板(1)还通过地形传感器架杆(11)连接地形传感器(12)，所述电机(8)、水位传感器(10)和地形传感器(12)均与控制端连接。1. a suspended mass sampling device that can obtain real-time relative positions is characterized in that it comprises a sampling plate (1), a lift (7), a water level sensor (10) and a terrain sensor (12), and the sampling plate (1 ) from bottom to top are provided with the first sampling tube (5), the second sampling tube (4), the third sampling tube (3) and the fourth sampling tube (2), and the top of the sampling plate (1) passes through The elevator screw (6) is connected to the elevator (7), the rotating bearing of the elevator (7) is connected to the motor (8), and one side of the elevator (7) is connected to the water level sensor (10) through the water level sensor bracket rod (9). ), the sampling plate (1) is also connected to the terrain sensor (12) by the terrain sensor frame rod (11), and the motor (8), the water level sensor (10) and the terrain sensor (12) are all connected to the control terminal. 2.根据权利要求1所述的可获取实时相对位置的悬移质取样装置，其特征在于，所述第四取样管(2)与第三取样管(3)之间的距离为第三取样管(3)与第二取样管(4)之间的距离的2倍，所述第三取样管(3)与第二取样管(4)之间的距离为第二取样管(4)与第一取样管(5)之间的距离的2倍。2. The suspended mass sampling device capable of obtaining real-time relative positions according to claim 1, characterized in that the distance between the fourth sampling tube (2) and the third sampling tube (3) is the third sampling tube (3). 2 times of the distance between the pipe (3) and the second sampling pipe (4), the distance between the third sampling pipe (3) and the second sampling pipe (4) is the second sampling pipe (4) and 2 times the distance between the first sampling tubes (5). 3.根据权利要求1所述的可获取实时相对位置的悬移质取样装置，其特征在于，所述地形传感器架杆(11)位于取样板(1)下部，所述地形传感器(12)的工作面与第一取样管(5)在同一水平面上；所述水位传感器测杆(9)位于升降机(7)中部，所述水位传感器(10)与地形传感器(12)位于同一竖直线上。3. The suspended mass sampling device capable of obtaining real-time relative positions according to claim 1, characterized in that, the terrain sensor support rod (11) is located at the bottom of the sampling plate (1), and the topography sensor (12) The working surface and the first sampling pipe (5) are on the same horizontal plane; the water level sensor measuring rod (9) is located in the middle of the elevator (7), and the water level sensor (10) and the terrain sensor (12) are located on the same vertical line . 4.根据权利要求1所述的可获取实时相对位置的悬移质取样装置，其特征在于，所述水位传感器(10)和地形传感器(12)均为超声波传感器。4. The suspended mass sampling device capable of obtaining real-time relative positions according to claim 1, characterized in that, both the water level sensor (10) and the terrain sensor (12) are ultrasonic sensors. 5.根据权利要求1所述的可获取实时相对位置的悬移质取样装置，其特征在于，所述控制端包括手机、电脑和PC。5 . The suspended mass sampling device capable of obtaining real-time relative positions according to claim 1 , wherein the control terminals include mobile phones, computers and PCs. 6.一种可获取实时相对位置的悬移质取样装置使用方法，其特征在于，包括以下步骤：6. A method for using a suspended mass sampling device capable of obtaining real-time relative positions, comprising the following steps: S1、通过控制端控制电机带动升降机工作，使第一取样管、第二取样管、第三取样管和第四取样管到拟取样的水下高度处；S1. Control the motor through the control terminal to drive the elevator to work, so that the first sampling tube, the second sampling tube, the third sampling tube and the fourth sampling tube reach the underwater height to be sampled; S2、当床面发生变化时，通过地形传感器将测得其工作面与床面的距离d2传回控制端；S2. When the bed surface changes, the measured distance d 2 between the working surface and the bed surface is transmitted back to the control terminal through the terrain sensor; S3、通过控制端控制电机运动，使距离d2达到预设值；S3. Control the movement of the motor through the control terminal, so that the distance d 2 reaches a preset value; S4、通过水位传感器测得其工作面与水面的距离d1并传回控制端；S4. Measure the distance d1 between the working surface and the water surface through the water level sensor and send it back to the control terminal; S5、通过距离d1和距离d2计算水面的高度值H2、地形传感器的高度值H3和床面的高度值H4。S5. Calculate the height value H 2 of the water surface, the height value H 3 of the terrain sensor, and the height value H 4 of the bed surface according to the distance d 1 and the distance d 2 . 7.根据权利要求6所述的可获取实时相对位置的悬移质取样装置使用方法，其特征在于，所述水面的高度值H2、地形传感器的高度值H3和床面的高度值H4的计算公式为：7. The method for using the suspended mass sampling device capable of obtaining real-time relative positions according to claim 6, characterized in that, the height value H2 of the water surface, the height value H3 of the terrain sensor and the height value H of the bed surface 4 is calculated as: H2＝H1-d1 (1)H 2 =H 1 -d 1 (1) H3＝H1-d3 (2)H 3 =H 1 -d 3 (2) H4＝H3-d2 (3)H 4 =H 3 -d 2 (3) 在上式中，H1为水位传感器工作面距离床面的高度，即为升降机的高度，d3为水位传感器工作面与地形传感器工作面的距离。In the above formula, H 1 is the height of the working surface of the water level sensor from the bed surface, that is, the height of the lift, and d 3 is the distance between the working surface of the water level sensor and the working surface of the terrain sensor.
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赵慧明 等，: "生物絮凝泥沙运动输移数学模型", 《水利学报》, vol. 46, no. 11, pages 1290 - 1297 *

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