CN117723343A - Suspended load sampling equipment for river sediment test - Google Patents
Suspended load sampling equipment for river sediment test Download PDFInfo
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- CN117723343A CN117723343A CN202311450232.2A CN202311450232A CN117723343A CN 117723343 A CN117723343 A CN 117723343A CN 202311450232 A CN202311450232 A CN 202311450232A CN 117723343 A CN117723343 A CN 117723343A
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- cylinder
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- 239000013049 sediment Substances 0.000 title claims abstract description 42
- 238000005070 sampling Methods 0.000 title claims abstract description 26
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 116
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 11
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The invention discloses suspended load sampling equipment for river sediment testing, which belongs to the technical field of sediment sampling and comprises a cylinder, wherein two ends of a filtering channel are communicated with a water outlet and the cylinder; a plurality of filtering baffles are sequentially arranged along the axial direction of the filtering channel from outside to inside, filtering holes are formed in the filtering baffles, the diameters of the filtering holes in each filtering baffle become smaller from outside to inside according to the axial position of the filtering channel, the centers of the filtering baffles are connected through a central rod, the filtering baffles are connected to a displacement control device, the innermost filtering baffle is connected to one end of a front drain pipe, and the other end of the front drain pipe is connected to a rear drain pipe through a first telescopic pipe; the displacement control device is controlled to drive the filtering baffle plate to axially displace in the filtering channel, so that one or more filtering baffle plates extend out of the water inlet. The sampling equipment can carry out classified sampling according to the sediment with different particle size ranges, and the efficiency of subsequent classified tests is improved.
Description
Technical Field
The invention belongs to the technical field of sediment sampling, and particularly relates to suspended load sampling equipment for river sediment testing.
Background
Suspended sediment is suspended sediment moving in water flow, is mostly fine sand and clay particles, is a main part of river sediment delivery, and often brings a series of problems to water and electricity utilizing engineering, such as reservoir siltation, river evolution, water diversion canal head, canal system siltation and the like, so that hydrologic departments need to monitor hydrologic information of a river throughout the year, wherein suspended sediment test is one of the most basic works of hydrologic test. The factors characterizing river sediment properties are mainly: heavy weight, particle size, screen size, settling rate, etc. In the prior art, a plurality of devices for sampling suspended sediment exist, but the devices cannot conduct classified sampling according to sediment in different particle size ranges, so that no small obstruction is brought to subsequent classified testing work.
Disclosure of Invention
Therefore, the present invention aims to provide a suspended load sampling device for river sediment testing, which can solve the above technical problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention discloses suspended load sampling equipment for river sediment testing, which comprises a barrel, wherein a water inlet is formed in the side wall of the barrel facing the water flow direction, a water outlet is formed in the side wall of the barrel facing away from the water flow direction, a semicircular boss is fixed on the inner side of the barrel, a filtering channel is formed in the boss, and two ends of the filtering channel are communicated with the water outlet and the barrel; a plurality of filtering baffles are sequentially arranged along the axial direction of the filtering channel from outside to inside, filtering holes are formed in the filtering baffles, the diameters of the filtering holes in each filtering baffle sequentially decrease from outside to inside according to the axial position of the filtering channel, the centers of the filtering baffles are connected through a center rod, the filtering baffles are connected to a displacement control device, the innermost filtering baffle is connected to one end of a front drain pipe, and the other end of the front drain pipe is connected to a rear drain pipe through a first telescopic pipe; the displacement control device is controlled to drive the filtering baffle plate to axially displace in the filtering channel, so that one or more filtering baffle plates extend out of the water inlet.
Further, displacement controlling means includes first sleeve pipe, first rack, first gear and motor, first sleeve pipe slides and sets up the inboard at filtering passageway, first through-hole has been seted up on the first sleeve pipe, first sleeve is fixed in filtering baffle's the outside, first telescopic outside coaxial fixed with first rack, first rack and first gear engagement, the inboard at the boss is fixed to the motor.
Further, the outside slip of first sheathed tube is provided with the second sleeve pipe, the second sleeve pipe slides and sets up the inboard at filtering passageway, the second through-hole has been seted up on the second sleeve pipe, the inboard of second sleeve pipe is fixed with the mediation board, the third through-hole has been seted up on the mediation board, the mediation board is fixed with the mediation pole simultaneously, and the mediation pole sets up along filtering passageway's axial, and the mediation pole of mediation board both sides and its adjacent filtration hole one-to-one, be connected with elastic supporting device between mediation board and the filtering baffle, second sleeve pipe is connected with stop device.
Further, stop device includes second rack, second gear and first telescoping device, the outside coaxial fixed with second rack of second telescopic, second rack and second gear internal engagement, second gear is connected to the output of first telescoping device.
Further, a first open slot for limiting the first rack is formed in the upper side of the second sleeve, and a second open slot for limiting the dredging plate is formed in the lower side of the first sleeve.
Further, a hanging rod is fixed at the top of the cylinder body and connected to the pull rope, and a plumb is fixed at the lower end of the cylinder body.
Further, the rear drain pipe is connected to a vertical drain pipe through a second telescopic pipe, and the lower end of the vertical drain pipe faces the bottom of the barrel.
Further, the vertical drain pipe is fixedly arranged on the support, a sliding block is fixed on one side of the support, the sliding block is arranged in a vertical track arranged on the inner wall of the cylinder in a sliding mode, and a locking piece is arranged between the support and the cylinder.
Further, the bottom of barrel is fixed with the second telescoping device, the output of second telescoping device is connected with the piston, the second telescoping device can drive the piston and move in vertical drain pipe.
The invention has the beneficial effects that:
when the suspended load sampling device for river sediment testing disclosed by the invention is used, the device is settled under a river, the water inlet is opposite to water flow, suspended load sediment enters the filtering channel from the water inlet, the suspended load sediment is filtered by the multi-layer filtering baffle plates, redundant water can be discharged from the water outlet, and suspended load sediment with a required particle size range can be obtained in the cylinder body, so that the subsequent testing requirement is met.
In the device disclosed by the invention, the diameters of the filtering holes on each filtering baffle plate sequentially decrease from outside to inside according to the axial positions on the filtering channels. When the particle size range of the required sediment needs to be increased, the displacement control device can be started, the outermost filtering baffle plate is moved to the outer side of the cylinder body, at the moment, the sediment can directly enter the filtering channel without being filtered by the outermost filtering baffle plate, and the particle size range of the sediment is increased. Similarly, when the position of the filtering baffle is regulated again by the subsequent displacement control device, the device is also suitable for filtering sediment with larger particle size range.
In the equipment disclosed by the invention, the first telescopic pipe is adopted, so that the front drain pipe can move along with the innermost filtering baffle to receive sediment, the rear drain pipe at the rear end is not influenced, and the normal sediment collection work is not influenced. The whole structure is compact, and the cost is lower.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of a sampling device according to the present invention;
FIG. 2 is a schematic diagram of a sampling device according to a second embodiment of the present invention;
FIG. 3 is a cross-sectional view of a sampling device of the present invention;
FIG. 4 is a schematic illustration of the mating of the first sleeve and the second sleeve;
FIG. 5 is a schematic view of the structure of the first sleeve;
FIG. 6 is a schematic structural view of a second sleeve;
fig. 7 is a schematic structural view of the dredging plate.
The figures are marked as follows: barrel 1, water inlet 2, delivery port 3, boss 4, filtration passageway 5, filtration baffle 6, filtration pore 7, center rod 8, front drain 9, first flexible pipe 10, back drain 11, first sleeve 12, first rack 13, first gear 14, motor 15, first through hole 16, second sleeve 17, second through hole 18, dredging plate 19, third through hole 20, dredging rod 21, elastic support device 22, second rack 23, second gear 24, first telescoping device 25, first open slot 26, second open slot 27, boom 28, plumb 29, second flexible pipe 30, vertical drain 31, support 32, slider 33, vertical track 34, second telescoping device 35, piston 36.
Detailed Description
As shown in fig. 1 to 7, the suspended load sampling device for river sediment testing disclosed by the invention comprises a cylinder body 1, wherein the cylinder body 1 is cylindrical. In use, the axis of the cartridge 1 is along the vertical direction. The side wall of the cylinder 1 facing the water flow direction is provided with a water inlet 2, the side wall of the cylinder 1 facing the water flow direction is provided with a water outlet 3, and the direction facing the water flow direction at this time is the direction in which the opening faces the water flow. A semicircular boss 4 is fixed on the inner side of the cylinder body 1, a filtering channel 5 is arranged on the boss 4, and two ends of the filtering channel 5 are communicated with the water outlet 3 and the cylinder body 1; suspended solid sediment enters the filtering channel 5 through the water inlet 2, is filtered through the filtering channel 5, enters the barrel 1, is finally discharged through the water outlet 3, and sediment obtained through filtering can be deposited in the barrel 1 again and can be used for subsequent tests.
Specifically, in the device disclosed by the invention, a plurality of filtering baffles 6 are sequentially arranged from outside to inside along the axial direction of the filtering channel 5, each filtering baffle 6 is perpendicular to the axial direction of the filtering channel 5, the filtering baffles 6 are provided with filtering holes 7, and the diameters of the filtering holes 7 on each filtering baffle 6 are sequentially reduced from outside to inside according to the axial position on the filtering channel 5. I.e. the filter holes 7 on the filter baffle 6 closest to the centre of the bowl 1 are largest and the filter holes 7 on the filter baffle 6 furthest from the centre of the bowl 1 are smallest. The center of the filtering baffle 6 is connected through a center rod 8 and can synchronously move, the filtering baffle 6 is connected to a displacement control device, the innermost filtering baffle 6 is connected to one end of a front drain pipe 9, and the other end of the front drain pipe 9 is connected to a rear drain pipe 11 through a first telescopic pipe 10; the filtering baffle 6 is driven to axially displace in the filtering channel 5 by controlling the displacement control device, so that one or more filtering baffles 6 extend out of the water inlet 2.
Since the diameter of the filtering holes 7 on each filtering baffle 6 is sequentially reduced from outside to inside according to the axial position on the filtering channel 5. When the particle size range of the required sediment needs to be enlarged, the displacement control device can be started, the outermost filtering baffle 6 is moved to the outer side of the cylinder body 1, at the moment, the rest filtering baffles 6 are all positioned in the filtering channel 5, the sediment can directly enter the filtering channel 5 without being filtered by the outermost filtering baffle 6, and the particle size range of the sediment obtained at the moment is enlarged after being filtered by the rest filtering baffles 6. Similarly, when the position of the filtering baffle 6 is adjusted again by the subsequent displacement control device, the device is also suitable for filtering sediment with larger particle size range, and the person skilled in the art can understand the sediment.
In this embodiment, displacement control device includes first sleeve pipe 12, first rack 13, first gear 14 and motor 15, first sleeve pipe 12 is incomplete tube-shape, first sleeve pipe 12 slides and sets up in the inboard of filtering passageway 5, first sleeve pipe is coaxial with filtering passageway 5, first through-hole 16 has been seted up on the first sleeve pipe 12, when first sleeve stretches out water inlet 2, first through-hole 16 can be used for silt to pass through, first sleeve is fixed in filtering baffle 6's outside, first rack 13 is fixed with in the outside coaxial of first sleeve, first rack 13 meshes with first gear 14, motor 15 is fixed in boss 4's inboard.
In this embodiment, the outside of the first sleeve 12 is slidably provided with a second sleeve 17, the second sleeve 17 is slidably disposed at the inner side of the filtering passage 5, a second through hole 18 is formed in the second sleeve 17, a dredging plate 19 is fixed at the inner side of the second sleeve 17, a third through hole 20 is formed in the dredging plate 19, the dredging plate 19 is simultaneously fixed with a dredging rod 21, the dredging rods 21 are disposed along the axial direction of the filtering passage 5, the dredging rods 21 at two sides of the dredging plate 19 are in one-to-one correspondence with the adjacent filtering holes 7, an elastic supporting device 22 is connected between the dredging plate 19 and the filtering baffle 6, and the second sleeve 17 is connected with a limiting device. By providing the dredging plate 19 and the dredging rod 21 mounted thereon, the filtering holes 7 on the filtering baffle 6 can be dredged at regular time.
When the filter baffle plate 6 is controlled to move by the displacement control device, the dredging plate 19 can move along with the filter baffle plate 6 under the elastic action of the elastic supporting device 22, and at the moment, the filter baffle plate 6 and the dredging plate 19 cannot move relatively, and the dredging rod 21 does not work.
When the filter holes 7 need to be dredged, the limiting device is started to limit the movement of the conveying plate. When the displacement control device controls the movement of the filtering baffle 6, the filtering baffle 6 can compress the elastic supporting device 22 and relatively move with the dredging plate 19, and at the moment, the dredging rod 21 can be inserted into the filtering hole 7 to play a role in dredging the filtering hole 7, so that the filtering hole 7 is prevented from being blocked. The dredging operation can be realized by starting and stopping the limiting device, and the device is simple and applicable.
In this embodiment, the limiting device includes a second rack 23, a second gear 24 and a first telescopic device 25, the second rack 23 is coaxially fixed on the outer side of the second sleeve, the second rack 23 is disposed along the axial direction of the filtering channel 5, the second rack 23 is engaged with the second gear 24, and the second gear 24 is connected to the output end of the first telescopic device 25. The first telescopic device 25 employs a cylinder for controlling the second gear 24 to approach or separate from the second rack 23. The second gear 24 is not rotated, and when the second gear 24 is in contact engagement with the second rack 23, the displacement of the second rack 23 can be restricted, and at this time, the above-described open/close state is achieved, and the open/close lever 21 can be operated.
In this embodiment, the upper side of the second sleeve 17 is provided with the first open slot 26 for limiting the first rack 13, and the lower side of the first sleeve 12 is provided with the second open slot 27 for limiting the dredging plate 19, which can play a role in yielding, and the overall structure is more compact.
In this embodiment, the top of the cylinder 1 is fixed with a boom 28, the boom 28 is connected to a pull rope, and the cylinder 1 can be suspended under water by fixing the upper end of the pull rope to the test vessel. The lower end of the cylinder 1 is fixed with a plumb 29, which can play a role in stabilizing the cylinder 1 and reduce the shake of the cylinder 1 under water.
In this embodiment, the rear drain pipe 11 is connected to a vertical drain pipe 31 through a second telescopic pipe 30, and the lower end of the vertical drain pipe 31 is directed toward the bottom of the bowl 1. The vertical drain pipe 31 is fixedly arranged on the support 32, a sliding block 33 is fixed on one side of the support 32, the sliding block 33 is arranged in a vertical track 34 arranged on the inner wall of the cylinder body 1 in a sliding mode, the vertical track 34 adopts a T-shaped track to prevent the vertical drain pipe 31 from moving along the radial direction, and a locking piece is arranged between the support 32 and the cylinder body 1. The retaining member includes vertical pole and nut, and the vertical pole passes behind the support 32 and passes through the nut fixed, can adjust the height of support 32 to satisfy the demand of different silt collection volume.
In this embodiment, a second telescopic device 35 is fixed at the bottom of the cylinder 1, the output end of the second telescopic device 35 is connected with a piston 36, and the second telescopic device 35 can drive the piston 36 to move in the vertical drain pipe 31. By arranging the piston 36 to move in the vertical drain pipe 31, a certain negative pressure or positive pressure can be generated in the vertical drain pipe, and the piston 36 is started periodically, so that the pipeline dredging effect can be realized, and the possibility of blocking subsequent silt in the pipeline is reduced.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. A suspension sampling equipment for river course silt test, includes barrel, its characterized in that: a water inlet is formed in the side wall of the cylinder facing the water flow direction, a water outlet is formed in the side wall of the cylinder facing away from the water flow direction, a semicircular boss is fixed on the inner side of the cylinder, a filtering channel is formed in the boss, and two ends of the filtering channel are communicated with the water outlet and the cylinder; a plurality of filtering baffles are sequentially arranged along the axial direction of the filtering channel from outside to inside, filtering holes are formed in the filtering baffles, the diameters of the filtering holes in each filtering baffle sequentially decrease from outside to inside according to the axial position of the filtering channel, the centers of the filtering baffles are connected through a center rod, the filtering baffles are connected to a displacement control device, the innermost filtering baffle is connected to one end of a front drain pipe, and the other end of the front drain pipe is connected to a rear drain pipe through a first telescopic pipe; the displacement control device is controlled to drive the filtering baffle plate to axially displace in the filtering channel, so that one or more filtering baffle plates extend out of the water inlet.
2. The suspended solids sampling device for river sediment testing according to claim 1, wherein: the displacement control device comprises a first sleeve, a first rack, a first gear and a motor, wherein the first sleeve is arranged on the inner side of a filtering channel in a sliding mode, a first through hole is formed in the first sleeve, the first sleeve is fixed on the outer side of a filtering baffle, the first rack is coaxially fixed on the outer side of the first sleeve, the first rack is meshed with the first gear, and the motor is fixed on the inner side of a boss.
3. The suspended solids sampling device for river sediment testing according to claim 2, wherein: the outside slip of first sheathed tube is provided with the second sleeve pipe, the second sleeve pipe slides and sets up the inboard at filtering passageway, the second through-hole has been seted up on the second sleeve pipe, the inboard of second sleeve pipe is fixed with the mediation board, the third through-hole has been seted up on the mediation board, the mediation board is fixed with the mediation pole simultaneously, and the mediation pole sets up along filtering passageway's axial, and the mediation pole of mediation board both sides and its adjacent filtration pore one-to-one, be connected with elastic supporting device between mediation board and the filtering baffle, the second sleeve pipe is connected with stop device.
4. A suspended solids sampling device for river sediment testing according to claim 3, wherein: the limiting device comprises a second rack, a second gear and a first telescopic device, wherein the second rack is coaxially fixed on the outer side of the second sleeve, the second rack is internally meshed with the second gear, and the second gear is connected to the output end of the first telescopic device.
5. The suspended solids sampling device for river sediment testing according to claim 4, wherein: the upper side of the second sleeve is provided with a first open slot for limiting the first rack, and the lower side of the first sleeve is provided with a second open slot for limiting the dredging plate.
6. The suspended solids sampling device for river sediment testing according to claim 1, wherein: the top of the cylinder is fixed with a suspender, the suspender is connected to a pull rope, and the lower end of the cylinder is fixed with a plumb.
7. An suspended solids sampling device for river sediment testing according to any one of claims 1-6, wherein: the rear drain pipe is connected to a vertical drain pipe through a second telescopic pipe, and the lower end of the vertical drain pipe faces the bottom of the barrel.
8. The suspended solids sampling device for river sediment testing according to claim 7, wherein: the vertical drain pipe is fixedly arranged on the support, a sliding block is fixed on one side of the support, the sliding block is arranged in a vertical track arranged on the inner wall of the cylinder in a sliding mode, and a locking piece is arranged between the support and the cylinder.
9. The suspended solids sampling device for river sediment testing according to claim 8, wherein: the bottom of barrel is fixed with the second telescoping device, the output of second telescoping device is connected with the piston, the second telescoping device can drive the piston and move in vertical drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311450232.2A CN117723343B (en) | 2023-11-02 | 2023-11-02 | Suspended load sampling equipment for river sediment test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311450232.2A CN117723343B (en) | 2023-11-02 | 2023-11-02 | Suspended load sampling equipment for river sediment test |
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| Publication Number | Publication Date |
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| CN117723343A true CN117723343A (en) | 2024-03-19 |
| CN117723343B CN117723343B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311450232.2A Active CN117723343B (en) | 2023-11-02 | 2023-11-02 | Suspended load sampling equipment for river sediment test |
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| Country | Link |
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| CN (1) | CN117723343B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118191358A (en) * | 2024-04-25 | 2024-06-14 | 山东黄河河务局山东黄河信息中心 | River course main line monitoring devices |
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| CN117723343B (en) | 2024-06-07 |
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