A sediment suspension and sampling device simulating ship disturbance

Abstract

The invention discloses a sediment suspension and sampling device for simulating ship disturbance, which belongs to the technical field of water quality detection, and comprises: a supporting device, a connecting part connected to the supporting device, a driving part installed at the bottom of the connecting part, an output end is provided at the bottom of the driving part, a propeller installed at the output end at the bottom of the driving part, through holes are provided in the middle of the propeller and the driving part, and the two are interconnected, and a sampling part, which passes through the propeller and the driving part and is connected to the connecting part in sequence. The invention simulates the situation that ships are located in different river environments and sail at different speeds, observes the effect of propellers on sediment suspension, and indirectly reflects the situation of sediment pollution, and at the same time conducts data analysis and exploration from the radial and depth distances of the ship propeller, thereby adding more possibilities for experimental results and making the experimental data more comprehensive.

Description

Technical Field

[0001] The invention relates to a bottom mud suspension and sampling device for simulating ship disturbance, belonging to the technical field of water quality detection. Background Art

[0002] Under the impact of water flow, the sediment deposited at the bottom of the river will be eroded and suspended, and endogenous release will occur. The released trace elements, pollutants and other substances will cause changes in water quality. Endogenous release has a great impact on the water environment, which may cause changes in microorganisms and changes in the number of aquatic organisms. Therefore, it is necessary to study the sediment suspension technology. How to analyze the microscopic mechanism of sediment suspension and study the impact of ship propeller disturbance on sediment suspension is lacking in practical research at this stage. The combination of sediment suspension and propeller disturbance has certain theoretical and practical research value.

[0003] The existing sampling devices only detect and sample the water body, but do not explore the impact of ships on the suspension of bottom mud, and are unable to explore the mechanism of action of ship propeller disturbance. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a sediment suspension and sampling device that simulates ship disturbance. By simulating the situation of ships sailing at different speeds in different river environments, the effect of propellers on sediment suspension is observed, thereby indirectly reflecting the sediment pollution situation. At the same time, data analysis and exploration is performed from the radial and depth distances of the ship's propeller, which adds more possibilities to the experimental results and makes the experimental data more comprehensive.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0006] The present invention provides a sediment suspension and sampling device for simulating ship disturbance, comprising:

[0007] a supporting device,

[0008] a connecting portion connected to the supporting device,

[0009] A driving part installed at the bottom of the connecting part, wherein the bottom of the driving part is provided with an output end,

[0010] A propeller is installed at the output end of the bottom of the driving part, and the propeller and the middle part of the driving part are both provided with through holes, and the two are interconnected.

[0011] A sampling part passes through the propeller and the driving part in sequence and is connected with the connecting part.

[0012] Furthermore, the supporting device includes a balance pole and arc-shaped brackets symmetrically arranged at two ends of the balance pole, and two ends of the arc-shaped bracket are hollow.

[0013] Furthermore, the arc-shaped bracket is formed by connecting two upper and lower arc-shaped stainless steel pipes and two left and right vertical steel pipes.

[0014] Furthermore, counterweight brackets are symmetrically provided at both ends of the arc-shaped bracket, the counterweight bracket is installed on the vertical steel pipe, and a counterweight body is installed on the counterweight bracket.

[0015] Furthermore, the driving part includes a shell, a motor, a first gear, a second gear, a rotating rod, and a slewing bearing. The shell is arranged between the connecting part and the propeller, the slewing bearing is arranged at the bottom center of the shell, one end of the rotating rod passes through the slewing bearing into the interior of the shell, and is connected to the inner ring of the slewing bearing. The first gear is connected to the rotating rod at one end of the shell, and the connection between the rotating rod and the first gear is provided with a through hole that is connected to the outside for the sampling part to pass through. The second gear is meshed and connected with the first gear, and is driven by a motor arranged inside the shell.

[0016] Furthermore, the driving unit also includes a speed regulator, which is arranged inside the shell. The motor is a variable speed motor, and an internal gearbox is connected to the motor.

[0017] Furthermore, a retractable and adjustable traction rope is provided on the top of the connecting portion.

[0018] Furthermore, a power source and electric wires are provided inside the connecting portion, and the power source is connected to the speed regulator and the motor respectively through the electric wires.

[0019] Furthermore, the sampling part includes a vertically placed main sampling rod and branch sampling rods arranged in a cross shape at the bottom end of the main sampling rod, and sampling holes of equal apertures are evenly spaced on the main sampling rod and the branch sampling rods, and the bottom end of the main sampling rod is higher than the lower end surface of the arc-shaped bracket.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention extends the sediment suspension in the direction of the ship. Compared with other devices, this device combines the relationship between ship disturbance and sediment suspension pollution, while other devices only detect and sample the water body, do not explore the impact of the ship on the sediment suspension, and cannot explore the mechanism of action of the ship propeller disturbance.

[0022] 2. Realization of multi-directional sediment collection: Many sediment sampling devices are designed only in the longitudinal direction, and most of the sampling rods are designed with high, medium and low distribution sampling holes to collect sediment suspension conditions at different water depths; this device uses longitudinal and transverse sampling rods to set different research variables, which makes it easier to study the differences between the longitudinal and horizontal directions.

[0023] 3. The device's own adaptability to different environments: Through the use of various weight counterweights, the device can adjust its own weight to increase stability in response to different river flow rates. In addition, the hollow design reduces the force-bearing area, reduces the force of water, strengthens the stability of the device, and prevents the instrument from shifting or overturning.

[0024] 4. A more comprehensive reflection of the jet velocity: This device innovatively combines a propeller on the basis of the bottom mud device. Taking into account the different speeds of ships, a speed regulator is added to control the change of propeller speed, which in turn causes different propeller jet flow rates, adding more possibilities for the experimental results and making the experimental data more comprehensive.

[0025] Provided is a sediment suspension and sampling device for simulating ship disturbance, which has a simple structure, is easy to operate, has low manufacturing and maintenance costs, has good use effects, can be used for diversified and accurate sampling, and has reliable practicality and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of a sediment suspension and sampling device for simulating ship disturbance provided by an embodiment of the present invention;

[0027] Figure 2 is a side view of a sediment suspension and sampling device for simulating ship disturbance provided by an embodiment of the present invention;

[0028] Figure 3 yes Figure 1 The structural schematic diagram of the driving part shown;

[0029] Figure 4 yes Figure 1 The structural schematic diagram of the propeller shown;

[0030] Figure 5 yes Figure 1 The structural schematic diagram of the counterweight body is shown.

[0031] In the figure: 1, connecting part; 2, driving part; 2a, shell; 2b, motor; 2c, first gear; 2d, second gear; 2e, rotating rod; 2f, slewing bearing; 2g, speed regulator; 3, propeller; 4, main sampling rod; 5, branch sampling rod; 6, sampling hole; 7, supporting device; 8, balance rod; 9, arc bracket; 10, counterweight bracket; 11, counterweight body. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the sediment suspension and sampling device for simulating ship disturbance provided by an embodiment of the present invention comprises:

[0036] A support device 7, the support device 7 includes a balance bar 8 and an arc-shaped bracket 9 symmetrically arranged at both ends of the balance bar 8, the arc-shaped bracket 9 is hollowed out at both ends, the arc shape expands the bottom ground contact area, and the hollowing reduces the area to reduce the effect of force and maintain stability. The arc-shaped stabilizing frame uses the arc-shaped expansion as a support foot, which is conducive to the stability of the device on the bottom of the water and does not tip over; the arc-shaped bracket 9 is connected by two upper and lower arc-shaped stainless steel pipes and two left and right vertical steel pipes; counterweight brackets 10 are symmetrically arranged at both ends of the arc-shaped bracket 9, the counterweight bracket 10 is installed on the vertical steel pipe, and a counterweight body 11 is installed on the counterweight bracket 10. Increase the weight of the device itself, make the device as vertical as possible to the lower layer, and reduce the deviation distance from the survey target area. The counterweight body 11 is suspended from the counterweight bracket 10, and the trough structure is used to place the counterweight to fall. The counterweight body 11 is a solid metal weight with an outer circle and an inner square of different weights;

[0037] The material of the whole balance bracket is preferably stainless steel, which is not easy to rust and has high hardness;

[0038] A connecting part 1 connected to the supporting device 7, wherein a retractable and adjustable traction rope is provided on the top of the connecting part 1, which can be retracted and regulated to freely adjust the placement depth of the instrument, and has a relatively high hardness to prevent the connecting device from breaking and the instrument from falling off; a power supply and a wire are provided inside the connecting part 1, and the power supply is respectively connected to the speed regulator and the motor 2b through the wires;

[0039] The material of the water-contacting outer shell of the connecting part 1 is preferably rubber material;

[0040] A driving part 2 is installed at the bottom of the connecting part 1, and an output end is provided at the bottom of the driving part 2. The driving part 2 includes a housing 2a, a motor 2b, a first gear 2c, a second gear 2d, a rotating rod 2e, and a slewing bearing 2f. The housing 2a is provided between the connecting part 1 and the propeller 3. The slewing bearing 2f is provided at the bottom center of the housing 2a. One end of the rotating rod 2e passes through the slewing bearing 2f and enters the interior of the housing 2a, and is connected to the inner ring of the slewing bearing 2f. The first gear 2c and the rotating rod 2e are located at the housing 2a. One end is connected, and the connection between the rotating rod 2e and the first gear 2c is provided with a through hole that is connected to the outside for the sampling part to pass through, the second gear 2d is meshed and connected with the first gear 2c, and is driven by the motor 2b arranged inside the shell 2a; the driving part 2 also includes a speed regulator, which is arranged inside the shell 2a, the motor 2b is a variable speed motor 2b, and the internal gearbox is connected to the motor 2b; the speed regulator adjusts the current intensity and frequency to control the driving speed of the propeller 3;

[0041] A propeller 3 is installed at the output end of the bottom of the driving part 2. The propeller 3 and the middle of the driving part 2 are both provided with through holes, and the two are interconnected.

[0042] A sampling part, the sampling part passes through the propeller 3 and the driving part 2 in sequence and is connected to the connecting part 1; the sampling part comprises a vertically placed main sampling rod 4 and a branch sampling rod 5 arranged in a cross shape at the bottom end of the main sampling rod 4, and sampling holes 6 of equal apertures are arranged evenly at intervals on the main sampling rod 4 and the branch sampling rod 5, and the bottom end of the main sampling rod 4 is higher than the lower end surface of the arc-shaped bracket 9; the main sampling rod 4 is not in direct contact with the propeller 3, and maintains independent operation, is not affected by the rotation of the propeller 3, and reduces unnecessary experimental interference, and the collection holes are arranged evenly at intervals on it, so as to facilitate the measurement of the longitudinal data changes corresponding to the same position;

[0043] When in use, first determine the specific fixed position of the detection object and mark it; observe the water flow velocity, and reasonably select the counterweight 11 to increase the weight of the device, speed up the vertical sinking speed, and reduce the experimental error caused by the placement offset due to the impact of the water flow; use the connecting part 1 as a hanging rope to put the device into the water body to be tested, wait for the device to touch the bottom and stand still for a period of time for observation, and reduce the influence of factors on the destruction of the mud layer structure; test in batches by changing the speed of the propeller 3 multiple times, and collect sample water in the collection hole respectively.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A sediment suspension and sampling device for simulating ship disturbance, characterized in that it comprises: a supporting device (7), a connecting portion (1) connected to the supporting device (7), A driving part (2) is installed at the bottom of the connecting part (1), and an output end is provided at the bottom of the driving part (2). A propeller (3) is installed at the output end of the bottom of the driving part (2), wherein the propeller (3) and the middle part of the driving part (2) are both provided with through holes, and the two are interconnected. a sampling portion, the sampling portion sequentially passing through the propeller (3) and the driving portion (2) to be connected to the connecting portion (1); The supporting device (7) comprises a balancing rod (8) and arc-shaped brackets (9) symmetrically arranged at two ends of the balancing rod (8), and the two ends of the arc-shaped bracket (9) are hollowed out; The arc-shaped bracket (9) is formed by connecting two upper and lower arc-shaped stainless steel pipes and two left and right vertical steel pipes; Counterweight brackets (10) are symmetrically arranged at both ends of the arc-shaped bracket (9), the counterweight bracket (10) is installed on a vertical steel pipe, and a counterweight body (11) is installed on the counterweight bracket (10); The sampling portion comprises a main sampling rod (4) placed vertically, and a branch sampling rod (5) arranged in a cross shape at the bottom end of the main sampling rod (4), wherein sampling holes (6) of equal apertures are arranged at equal intervals on the main sampling rod (4) and the branch sampling rod (5), and the bottom end of the main sampling rod (4) is higher than the lower end surface of the arc-shaped bracket (9).

2. The sediment suspension and sampling device for simulating ship disturbance according to claim 1 is characterized in that: The driving part (2) comprises a housing (2a), a motor (2b), a first gear (2c), a second gear (2d), a rotating rod (2e), and a slewing bearing (2f). The housing (2a) is arranged between the connecting part (1) and the propeller (3). The slewing bearing (2f) is arranged at the bottom center of the housing (2a). One end of the rotating rod (2e) passes through the slewing bearing (2f) and enters the interior of the housing (2a) and is connected to the inner ring of the slewing bearing (2f). The first gear (2c) and the rotating rod (2e) are connected at one end of the housing (2a). A through hole that is connected to the outside is provided at the connection between the rotating rod (2e) and the first gear (2c) for the sampling part to pass through. The second gear (2d) is meshedly connected with the first gear (2c) and is driven by the motor (2b) arranged inside the housing (2a).

3. The sediment suspension and sampling device for simulating ship disturbance according to claim 2 is characterized in that: The driving unit (2) further comprises a speed regulator (2g), wherein the speed regulator (2g) is arranged inside the housing (2a); the motor (2b) is a variable speed motor (2b), and an internal gearbox is connected to the motor (2b).

4. The sediment suspension and sampling device for simulating ship disturbance according to claim 3 is characterized in that: A retractable and adjustable traction rope is provided on the top of the connecting portion (1).

5. The sediment suspension and sampling device for simulating ship disturbance according to claim 3 is characterized in that: A power source and electric wires are provided inside the connection portion (1), and the power source is connected to the rotation speed regulator (2g) and the motor (2b) respectively through the electric wires.

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