Novel sand discharging system device based on density flow

Abstract

The utility model relates to the technical field of sand discharging systems, in particular to a novel sand discharging system device based on density flow, which comprises a reservoir obliquely arranged on the basis of river topography, a partition plate is arranged on the reservoir, and the reservoir is divided into a muddy water area for bearing muddy water and a clear water area for bearing clear water through the partition plate. A discharge port is formed in the lower end of the partition plate. As the densities of the muddy water area and the clear water area are different, the pressures of the muddy water area and the clear water area on the partition plate are different, and the pressure of the partition plate of the muddy water area is larger than that of the clear water area on the partition plate, so that high-sand-content water flow can be discharged to the bottom of the clear water area from the water outlet; the width and depth of the clear water area are greater than those of the muddy water area, so that the flow rate of high-sand-content water flow entering the clear water area is suddenly reduced, primary separation of density flow sand-containing water is formed, and the reduction of the sand content of water introduced into the channel is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand drainage system technical field especially relates to a new sand drainage system device based on heteropycnosis. BACKGROUND

[0002] The reservoir generally refers to the water conservancy construction that blocks flood and stores water, can utilize to irrigate, generates electricity, prevents flood and raises fish, and the reservoir can play the role of preventing flood, storing water irrigation, water supply, generating electricity, raising fish after being built.

[0003] The reservoir is intercepted by the dam, and the backwater influence of the water potential slows down and the tail area of the reservoir, and the silt will certainly accumulate in the reservoir, especially in the dam and the tail of the reservoir, and the traditional sand drainage mode needs to empty the water body in the reservoir, and then the silt in the reservoir is cleaned, the engineering quantity is huge, and a large amount of manpower and material resources are needed. UTILITY MODEL CONTENT

[0004] The utility model discloses a new sand drainage system device based on heteropycnosis to solve the problem of the engineering quantity of the traditional sand drainage mode in the prior art, which needs to consume a large amount of manpower and material resources.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A new sand drainage system device based on heteropycnosis, comprising a reservoir based on the inclination of river channel topography, a partition is arranged on the reservoir, the reservoir is divided into a turbid water area for carrying turbid water and a clear water area for carrying clear water through the partition, and an outlet is arranged at the lower end of the partition.

[0007] A plurality of spiral grooves are arranged on the clear water area, a spiral desilting mechanism for stirring water and silt to flow is arranged in the spiral groove, a sand trap is arranged at one end of the reservoir where the clear water area is arranged, a sand drainage cavity is arranged on the sand trap and connected with the spiral groove, a water outlet is arranged on the reservoir for discharging clear water, and a sand drainage mechanism is arranged on the dam of the reservoir for automatically discharging sand when the sand in the sand drainage cavity is too much.

[0008] Preferably, the diameter of the outlet near one end of the turbid water area is smaller than the diameter of the outlet near one end of the clear water area, and the top end of the partition is lower than the top end of the reservoir.

[0009] Preferably, the end face of the clear water area where the spiral groove is arranged is a horizontal end face, and the spiral groove is a funnel structure.

[0010] Preferably, the spiral desilting mechanism comprises:

[0011] A mounting frame and a motor box with a built-in motor, the mounting frame is fixedly connected to the spiral groove, and the motor box is fixedly arranged on the mounting frame.

[0012] A driving shaft driven by the motor is rotatably installed on the motor box, and a propeller is fixedly sleeved on the driving shaft and located in the spiral groove.

[0013] Preferably, the upper end of the motor box is a tetrahedron structure.

[0014] Preferably, the sand discharging mechanism comprises:

[0015] A sealing door is hingedly connected to the sand discharging cavity.

[0016] A guide slide rail is fixedly arranged on one side of the reservoir.

[0017] A counterweight is slidably sleeved on the guide slide rail.

[0018] A traction rod is pivotally connected to the sealing door and the counterweight at two ends, respectively.

[0019] Preferably, the guide slide rail is in a T-shaped structure, and a limiting plate is arranged at both upper and lower ends of the guide slide rail.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] 1. In the utility model, because the density of the muddy water area is different from that of the clear water area, the pressure caused by the muddy water area to the partition plate is different from that caused by the clear water area to the partition plate, and the pressure caused by the muddy water area to the partition plate is greater than the pressure caused by the clear water area to the partition plate, so that the high-sand-content water flow is discharged from the drain outlet to the bottom of the clear water area. Because the width and depth of the clear water area are greater than those of the muddy water area, the flow rate of the high-sand-content water flow entering the clear water area suddenly decreases, thereby forming a preliminary separation of the density current sand-containing water, which helps to reduce the sand content of the water introduced into the channel.

[0022] 2. In the utility model, the spiral sand discharging mechanism controls the flow state and flow rate of the water flow in the clear water area by mechanical force, and then performs secondary separation on the water preliminarily separated at the bottom of the clear water area, thereby further reducing the sand content of the water introduced into the channel.

[0023] 3. In the utility model, the clear water in the upper layer of the clear water area is discharged from the drain outlet, and the sealing door is forced to open when the sand in the sand discharging cavity is greater in weight than the counterweight, so that the excessive sand does not affect the normal operation of the spiral sand discharging mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure diagram of a novel sand discharging system device based on a density current is provided for the utility model;

[0025] Figure 2 The utility model Figure 1the upper sectional view in the figure;

[0026] Figure 3 for the utility model Figure 1 the side sectional view in the figure;

[0027] Figure 4 for the utility model Figure 3 the A local enlarged structural schematic diagram in the figure;

[0028] Figure 5 for the utility model Figure 1 the partial sectional view in the figure.

[0029] in the figure:

[0030] 1, reservoir; 2, partition; 3, turbid water area; 4, clear water area; 5, discharge port; 6, spiral groove;

[0031] 7, spiral sand setting mechanism; 701, mounting frame; 702, motor box; 703, drive shaft; 704, propeller;

[0032] 8, sand settling tank; 9, sand discharging cavity; 10, water outlet;

[0033] 11, sand discharging mechanism; 1101, sealing door; 1102, guide slide rail; 1103, counterweight; 1104, traction rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0035] Referring to Figures 1-5 A novel sand discharging system device based on density current, comprising a reservoir 1 arranged based on the inclination of river channel topography, a partition 2 is arranged on the reservoir 1, and the surface of the partition 2 is smooth, the reservoir 1 is divided into a turbid water area 3 for carrying turbid water and a clear water area 4 for carrying clear water through the partition 2, and the reservoir 1 is connected with a spiral groove 6 through a discharge port 5. Figure 1 - the description is attached Figure 2The proportion of the muddy water area 3 and the clear water area 4 shown in the reference schematic diagram needs to be determined according to the actual size of the river channel and the like, and the specific selection calculation method adopts the existing technology in the art, so no further description is given. The lower end of the partition plate 2 is provided with a discharge port 5, and the top end of the partition plate 2 is lower than the top end of the reservoir 1. The reservoir 1 is provided with a water outlet 10 for discharging clear water. It should be noted that the sediment content of the water in the muddy water area 3 is much higher than that of the water in the clear water area 4, so the water density of the muddy water area 3 is different from that of the clear water area 4, and the pressure of the water in the muddy water area 3 on the partition plate 2 is greater than that of the water in the clear water area 4 on the partition plate 2. Since the diameter of the discharge port 5 near the muddy water area 3 is smaller than that of the discharge port 5 near the clear water area 4, the width of the clear water area 4 is greater than that of the muddy water area 3. Due to the inclination of the reservoir 1 as a whole, the depth of the muddy water area 3 located upstream is less than that of the clear water area 4 located downstream, so that when the water in the muddy water area 3 enters the clear water area 4, the flow rate will suddenly decrease, and at this time, the phenomenon of density current will be formed, so as to preliminarily separate the water in the clear water area 4.

[0036] Based on the setting of the clear water area 4, in order to further separate the water at the bottom of the clear water area 4, a plurality of spiral grooves 6 are formed on the clear water area 4. The end surface of the clear water area 4 provided with the spiral grooves 6 is a horizontal end surface. The spiral grooves 6 are funnel-shaped structures, and the spiral grooves 6 are provided with a spiral sand setting mechanism 7 for stirring water and mud to flow.

[0037] The spiral sand setting mechanism 7 includes a mounting frame 701, a motor box 702 in which a motor is arranged, a drive shaft 703 driven by the motor, and a propeller 704 located in the spiral groove 6. The components are arranged as follows:

[0038] The mounting frame 701 is fixedly connected to the spiral groove 6, and the motor box 702 is fixedly arranged on the mounting frame 701. The upper end of the motor box 702 is a tetrahedral structure, so that the mud will not adhere to the motor box 702 due to the influence of gravity, which helps to ensure the operation effect of the spiral sand setting mechanism 7. The drive shaft 703 is rotatably mounted on the motor box 702, and the propeller 704 is fixedly sleeved on the drive shaft 703. The flow pattern and flow rate in the clear water area 4 are controlled by the rotation of the propeller 704, so that the mud quickly settles under the action of centrifugal force and gravity, which helps to improve the water and sand separation efficiency in the clear water area 4, and further reduces the sediment content of the water introduced into the channel.

[0039] Based on the setting of the clear water area 4, in order to avoid the negative impact of excessive sediment accumulation at the bottom of the clear water area 4 on the spiral sand setting mechanism 7, a sand setting tank 8 is arranged at one end of the clear water area 4 of the reservoir 1. The sand setting tank 8 is provided with a sand discharge chamber 9 which is in communication with the spiral groove 6.

[0040] The reservoir 1 is provided with a sand discharging mechanism 11 for automatically discharging sand when the sand in the sand discharging cavity 9 is excessive, and the sand discharging mechanism 11 comprises a sealing door 1101, a guide slide rail 1102, a counterweight 1103 and a traction rod 1104, and each component is arranged as follows:

[0041] The sealing door 1101 is hinged to the sand discharging cavity 9, the guide slide rail 1102 is fixedly arranged on one side of the reservoir 1, the guide slide rail 1102 is in a T-shaped structure in section, and the upper and lower ends of the guide slide rail 1102 are provided with limiting plates, the counterweight 1103 is slidably sleeved on the guide slide rail 1102, the counterweight 1103 and the guide slide rail 1102 are made of stainless steel, so that corrosion of the counterweight 1103 and the guide slide rail 1102 by water is avoided, and the service life of the counterweight 1103 and the guide slide rail 1102 is improved, the traction rod 1104 is connected to the sealing door 1101 and the counterweight 1103 through pins at two ends, respectively, the counterweight 1103 and the sand in the sand discharging cavity 9 are used to resist each other by their own weights, the sealing door 1101 is opened when the weight of the sand in the sand discharging cavity 9 is greater than the weight of the counterweight 1103, and the sand is discharged through the sand discharging cavity 9, so that the automatic cleaning operation of the sand in the reservoir 1 is realized, and the siltation of the sand in the reservoir 1 is reduced.

[0042] The function principle of the utility model can be described by the following operation mode:

[0043] Since the water in the clear water area 4 is close to the clear water state after deposition, the pressures on the partition plate 2 caused by the turbid water area 3 and the clear water area 4 are different, the size difference between the inlet and the outlet of the discharge port 5 and the depth difference between the turbid water area 3 and the clear water area 4 are utilized, so that the flow rate of the high-sand water flow flowing from the turbid water area 3 to the bottom of the clear water area 4 through the discharge port 5 is rapidly reduced, at this time, the sand in the water flow continuously settles at the bottom of the clear water area 4, the relatively coarse sand remains in the bottom of the clear water area 4, and the relatively fine sand continues to flow with the water flow, the clear water is discharged from the water outlet 10, and since the sand density is greater than that of the clear water, the sand in the turbid water area 3 naturally settles downward under the action of gravity, so that the sand content at the upper end of the turbid water area 3 is less than that at the lower end of the turbid water area 3, and the relatively clear water body at the upper end of the turbid water area 3 flows from above the partition plate 2 to the clear water area 4;

[0044] At this time, the motor in the motor box 702 is started, so that the drive shaft 703 drives the propeller 704 to rotate, and the water flow state and flow rate in the clear water area 4 are controlled by the propeller 704, so that the silt in the water flow is accelerated to settle along the helical line in the inner wall of the helical groove 6 under the action of centrifugal force and gravity, and after the silt enters the sand discharge cavity 9 opened in the sand trap 8, the silt settles to one end of the sand discharge cavity 9 provided with the sealing door 1101 under the action of gravity, and as the silt accumulates, the silt gradually increases and compacts the silt at the bottom of the sand discharge cavity 9, and due to the density difference between the water body and the silt, the water body gradually flows to the upper end of the sand discharge cavity 9, thereby reducing the water content in the sand discharge cavity 9;

[0045] When the weight of the silt stored in the sand discharge cavity 9 is greater than that of the counterweight 1103, the silt extrudes the sealing door 1101, the sealing door 1101 is deflected upward, the sealing door 1101 drives the lower end of the traction rod 1104 to move linearly, the upper end of the traction rod 1104 drives the counterweight 1103 to move vertically upward on the guide rail 1102, thereby discharging the silt stored in the sand discharge cavity 9.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A new type of sand discharge system device based on heteropycnal flow, comprising a reservoir (1) arranged based on the inclination of the river channel topography, characterized in that, The water reservoir (1) is provided with a partition (2), the water reservoir (1) is divided into a muddy water area (3) for carrying muddy water and a clear water area (4) for carrying clear water by the partition (2), and the lower end of the partition (2) is provided with a discharge port (5); A plurality of spiral grooves (6) are formed in the clear water area (4), a spiral sand setting mechanism (7) for stirring water and causing the flow of silt is arranged in the spiral groove (6), one end of the water reservoir (1) provided with the clear water area (4) is provided with a sand setting tank (8), the sand setting tank (8) is provided with a sand discharge cavity (9) in communication with the spiral groove (6), the water reservoir (1) is provided with a water outlet (10) for discharging clear water, and the water reservoir (1) is provided with a sand discharge mechanism (11) for automatically discharging sand when the sand in the sand discharge cavity (9) is too much.

2. A new type of sand discharge system device based on density current according to claim 1, characterized in that, The diameter of the discharge port (5) near one end of the muddy water area (3) is smaller than the diameter of the discharge port (5) near one end of the clear water area (4), and the top end of the partition (2) is lower than the top end of the water reservoir (1).

3. A new type of sand discharge system based on density current according to claim 1, characterized in that, The end face of the clear water area (4) provided with the spiral groove (6) is a horizontal end face, and the spiral groove (6) is a funnel-shaped structure.

4. A new type of sand discharge system based on density current according to claim 1, characterized in that, The spiral sand setting mechanism (7) comprises: A mounting frame (701) and a motor box (702) provided with a motor, the mounting frame (701) is fixedly connected to the spiral groove (6), and the motor box (702) is fixedly arranged on the mounting frame (701); A drive shaft (703) driven by the motor and a propeller (704) located in the spiral groove (6), the drive shaft (703) is rotatably arranged on the motor box (702), and the propeller (704) is fixedly sleeved on the drive shaft (703).

5. A new type of sand discharge system based on density current according to claim 4, characterized in that, The upper end of the motor box (702) is a tetrahedral structure.

6. A new type of sand discharge system based on density current according to claim 1, characterized in that, The sand discharge mechanism (11) comprises: A sealing door (1101) hinged to the sand discharge cavity (9); A guide slide rail (1102) fixedly arranged on one side of the water reservoir (1); A counterweight (1103) slidably sleeved on the guide slide rail (1102); A traction rod (1104) having two ends respectively pivotally connected to the sealing door (1101) and the counterweight (1103).

7. A new type of sand discharge system based on density current according to claim 6, characterized in that, The guide slide rail (1102) is in a T-shaped structure, and limit plates are arranged at the upper and lower ends of the guide slide rail (1102).

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