CN110374062B - Compound bottom hole gate with sand discharging function - Google Patents
Compound bottom hole gate with sand discharging function Download PDFInfo
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- CN110374062B CN110374062B CN201910489473.5A CN201910489473A CN110374062B CN 110374062 B CN110374062 B CN 110374062B CN 201910489473 A CN201910489473 A CN 201910489473A CN 110374062 B CN110374062 B CN 110374062B
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- gate
- bottom hole
- hole gate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
Abstract
The invention relates to a compound bottom hole gate with a sand discharge function, which comprises a bottom hole gate and is characterized in that: the composite small gate is arranged at the position of the water flowing channel arranged on the bottom hole gate and in the bottom hole gate, and vertical displacement can be generated between the composite small gate and the bottom hole gate. The working process is as follows: when the bottom hole gate is opened, the compound small gate is opened firstly, the upper spray pipe sprays water towards the upstream, the lower spray pipe sprays water towards the downstream, the mud-water mixture discharged from the water flowing channel is discharged into the downstream which is farther away from the bottom hole gate, along with the relay sand discharging action of the upper spray pipe and the lower spray pipe, the sediment at the front part of the bottom hole gate forms a cavity, the reservoir water is communicated with the compound small gate, the sediment in front of the bottom hole gate is quickly discharged into the downstream along with the water flow, after all the sediment in front of the bottom hole gate is discharged, the adhesive force of the sediment is zero, at the moment, the bottom hole gate is opened, and all the sediment in the reservoir can be discharged.
Description
Technical Field
The invention belongs to the field of dams, relates to sand discharge of a bottom hole gate, and provides a compound bottom hole gate with a sand discharge function.
Background
Reservoir silt deposits and is an unsolved difficult problem at present, and some reservoirs adopt the bottom hole gate to sluicing row husky, and when silt deposits to a certain extent, because the adhesive force that silt deposits and produce can make the power of opening heavily overload, and then make the gate can not in time open and lead to the occurence of failure. Some reservoirs are designed with silt storage capacity, and the economic benefit of the reservoir is greatly reduced along with gradual saturation of the silt storage capacity.
The invention discloses an invention patent application with the application number of 2011101561419 and the name of a double-guide-rail inclined plane steel gate system, and discloses a parallelogram double-guide-rail inclined plane steel gate structure. Although the structure of the steel gate is opened, the separation of the face plate of the inclined steel gate from the deposited silt is separated, and thus the friction force between the inclined steel gate and the deposited silt is reduced during the opening, and the vertical component of the water pressure applied to the inclined steel gate further reduces the opening force of the gate. However, when the thickness of the silt deposited for a long time exceeds that of the bottom hole gate, the generated adhesive force is too large, when the double-guide-rail inclined plane steel gate is opened, the adhesive force of the deposited silt needs to be overcome, the deposited silt is separated from the adhesive force of the inclined plane steel gate and the deposited silt needs to be overcome, although the structure disclosed by the application reduces the friction force between the inclined plane steel gate and the deposited silt during opening, the adhesive force generated by the deposited silt during opening of the bottom hole gate is difficult to overcome, and the problem that the normal opening is influenced due to the overload of a hoist caused by deposition of the silt in front of the gate also exists. And because the inclination angle of the plane steel gate of the structure disclosed in the application is less than or equal to 10 degrees, the degree of reduction of the opening force of the gate is limited relative to the composite action of the water pressure at the bottom of the dam and the adhesive force generated by sediment accumulation, and the problem that the gate cannot be opened timely due to sediment accumulation is only partially solved to a certain extent. And, when the thickness of depositing silt surpassed the bottom hole gate, even opened the bottom hole gate, the sediment silt is located the surface of water below, and the sediment silt of depositing also can not normally be discharged.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a compound bottom hole gate with a sand discharge function.
The technical scheme for solving the technical problem is that the compound bottom hole gate with the sand discharge function comprises a bottom hole gate and is characterized in that: the composite small gate is arranged at the position of the water flowing channel arranged on the bottom hole gate and in the bottom hole gate, and vertical displacement can be generated between the composite small gate and the bottom hole gate.
The water flowing channel arranged on the bottom hole gate is obliquely arranged from upstream to downstream from high to low.
An upper water spraying pipe is arranged at the position of a water flowing channel arranged on the bottom hole gate and on one side of the downstream of the small duplex gate, and the upper water spraying pipe is fixed on the upper wall of the water flowing channel, and the water outlet faces the upstream.
And a lower water spraying pipe is arranged at the position of the water flowing channel arranged on the bottom hole gate and on one side of the downstream of the small duplex gate, and is fixed on the side wall of the water flowing channel, and the water outlet faces downstream.
A plurality of compound small gates can be arranged on the bottom hole gate and used for quickly removing sediment in front of the bottom hole gate.
The working process of the invention is as follows: in normal times, the composite bottom hole gate is in a closed state, the composite small gate is also in a closed state, when the thickness of deposited silt is higher than that of the bottom hole gate, the bottom hole gate cannot be opened due to high gate pressure, and silt is deposited in a flow channel arranged in the bottom hole gate and on the upstream side of the composite small gate. When the bottom hole gate needs to be opened, the composite small gate is firstly pulled upwards to open, because the area of the composite small gate is slightly larger than that of the water flowing channel, the contact area of the composite small gate and deposited silt is the same as the sectional area of the water flowing channel, and the maximum opening force can be determined through design calculation, so that a hoist is arranged; meanwhile, the lower water spray pipe arranged at the water flowing channel of the compound bottom hole gate of the invention starts to spray water towards the downstream, and the mud-water mixture discharged from the water flowing channel is discharged into the downstream farther away from the bottom hole gate, thereby accelerating the drainage of the deposited silt. Along with the continuous scouring of the water flow sprayed by the upper water spraying pipe and the relay sand discharging action of the water flow sprayed by the lower water spraying pipe, the deposited silt in the front part of the bottom hole gate can form a cavity, along with the continuous increase of the cavity, the silt in front of the bottom hole gate is communicated with the compound small gate under the action of water pressure, at the moment, the upper water spraying pipe and the lower water spraying pipe are closed, the silt in front of the bottom hole gate is quickly discharged into the downstream along with the water flow, after all the deposited silt in front of the bottom hole gate is discharged, the adhesive force of the silt is zero, at the moment, the bottom hole gate is opened, and the deposited silt of the reservoir. According to the different conditions of reservoir water regime and sediment deposition, the deposited sediment can be removed by stages. Because the bottom hole gate sluices and arranges the husky problem that can produce high-speed efflux, can control through the quantity of opening and the volume of opening of control bottom hole gate, make reservoir upper reaches portion not produce silt and deposit.
The invention has the beneficial effects that: the maximum opening force of the compound small gate can be determined through design calculation through the arranged compound small gate and the water flow channel, so that a hoist is arranged, and the condition that the normal opening is influenced due to overload of the hoist of the compound small gate is avoided; through setting up spray pipe and lower spray pipe, can form the relay effect of desilting, make the sediment before the bottom hole gate form the cavity, reservoir area water and the little gate of double entry UNICOM, the sediment before the bottom hole gate is discharged into the low reaches along with rivers fast, has produced the sediment before the bottom hole gate and has all got rid of the beneficial effect that back silt adhesive force is zero to avoid the bottom hole gate to open the door power and heavily overload, and then make the gate can not in time open and lead to the problem of occurence of failure. The door opening device has the characteristics of simple structure, controllable door opening force, low cost, easiness in operation, convenience in maintenance and remarkable effect.
Drawings
FIG. 1 is a schematic front view of a compound bottom hole gate with a sand discharge function according to the present invention;
FIG. 2 is a schematic sectional view of a compound bottom hole gate having a sand discharge function according to the present invention.
The figure is as follows: the device comprises a gate body 1, a pressing plate 2, a packing 3, a bolt 4, a compound small gate 5, an upper spray pipe 6, a lower spray pipe 7 and an operating lever 8.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 1-2, in embodiment 1, the compound bottom-hole gate with the sand discharge function includes a bottom-hole gate, the bottom-hole gate includes a gate body 1, a pressing plate 2 and packing 3, the pressing plate 2 is respectively disposed on two sides of the gate body 1, the pressing plate 2 is fixedly connected with the gate body 1 through a bolt 4, and the packing 3 is disposed on one side of the upstream of the gate body 1 and outside the pressing plate 2 and fixedly connected therewith. The bottom hole gate structure is characterized by further comprising a small compound gate 5, a water flow channel is arranged on the lower portion of the gate body 1 of the bottom hole gate, the water flow channel arranged on the bottom hole gate is obliquely arranged from upstream to downstream from high to low, the small compound gate 5 is arranged in the water flow channel arranged on the bottom hole gate and in the bottom hole gate, an operating rod 8 is arranged in the bottom hole gate and above the small compound gate 5, the operating rod 8 is fixedly connected with the small compound gate 5, the upper end of the operating rod 8 is fixedly connected with a hoist, and the small compound gate 5 and the bottom hole gate can generate vertical displacement through the operating rod 8.
An upper water spray pipe 6 is arranged at the position of a water flowing channel arranged on the bottom hole gate and on the downstream side of the small duplex gate 5, and the upper water spray pipe 6 is fixed on the upper wall of the water flowing channel, and the water outlet faces upstream.
A lower water spray pipe 7 is arranged at the position of a water flowing channel arranged on the bottom hole gate and on one side of the downstream of the compound small gate 5, and the lower water spray pipe 7 is fixed on the side wall of the water flowing channel, and the water outlet faces downstream.
The present embodiment is manufactured using prior art techniques.
The working process of the embodiment is as follows: at ordinary times, the compound bottom hole gate of this embodiment is in the closure state, and compound small gate 5 also is in the closure state, and when the thickness of silting up silt was higher than the bottom hole gate, because gate pressure is big, the bottom hole gate will unable open, and simultaneously, silt has also been deposited to the upper reaches one side of the small gate 5 of compound in the flowing water passageway that the bottom hole gate set up. When the bottom hole gate needs to be opened, the hoist is opened firstly, the operating lever 8 is lifted upwards to open the small compound gate 5, the area of the small compound gate 5 is slightly larger than that of the water flowing channel, the contact area of the small compound gate 5 and deposited silt is the same as the sectional area of the water flowing channel, and the maximum door opening force can be determined through design calculation, so that the hoist is arranged, after the small compound gate 5 is opened, the upper water spraying pipe 6 arranged at the water flowing channel of the compound bottom hole gate in the embodiment starts to spray water towards the upstream, the sprayed water flushes away the deposited silt, and the deposited silt and water are simultaneously discharged into the downstream along the water flowing channel; meanwhile, the lower water spray pipe 7 arranged at the water flowing channel of the compound bottom hole gate of the embodiment starts to spray water towards the downstream, and the mud-water mixture discharged from the water flowing channel is discharged into the downstream farther away from the bottom hole gate, so that the drainage of the deposited silt is accelerated. Along with the continuous scouring of the water flow sprayed by the upper water spraying pipe 6 and the relay sand discharging action of the water flow sprayed by the lower water spraying pipe 7, the deposited silt in front of the bottom hole gate can form a cavity, along with the continuous increase of the cavity, the silt in front of the bottom hole gate is communicated with the water flow channel under the action of water pressure, at the moment, the upper water spraying pipe 6 and the lower water spraying pipe 7 are closed, the silt in front of the bottom hole gate is quickly discharged into the downstream along with the water flow, after all the deposited silt in front of the bottom hole gate is discharged, the adhesive force of the silt is zero, at the moment, the bottom hole gate is opened, and the deposited silt of the reservoir can.
Claims (2)
1. The utility model provides a compound bottom outlet gate with arrange husky function, it includes bottom outlet gate and compound little gate, characterized by: the bottom hole gate is provided with a water flowing channel, the compound small gate is arranged at the water flowing channel arranged on the bottom hole gate and in the bottom hole gate, and the compound small gate and the bottom hole gate can generate vertical displacement; an upper water spraying pipe is arranged at the position of a water flowing channel arranged on the bottom hole gate and on one side of the downstream of the small duplex gate, and the upper water spraying pipe is fixed on the upper wall of the water flowing channel, and the water outlet faces upstream; and a lower water spraying pipe is arranged at the position of the water flowing channel arranged on the bottom hole gate and on one side of the downstream of the small duplex gate, and is fixed on the side wall of the water flowing channel, and the water outlet faces downstream.
2. The compound bottom hole gate with a sand discharging function as claimed in claim 1, wherein: the water flowing channel arranged on the bottom hole gate is obliquely arranged from upstream to downstream from high to low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489473.5A CN110374062B (en) | 2019-06-06 | 2019-06-06 | Compound bottom hole gate with sand discharging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489473.5A CN110374062B (en) | 2019-06-06 | 2019-06-06 | Compound bottom hole gate with sand discharging function |
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| Publication Number | Publication Date |
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| CN110374062A CN110374062A (en) | 2019-10-25 |
| CN110374062B true CN110374062B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910489473.5A Active CN110374062B (en) | 2019-06-06 | 2019-06-06 | Compound bottom hole gate with sand discharging function |
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| CN112962539B (en) * | 2021-02-04 | 2022-12-23 | 四川大学 | Ecological hole that drains of formula of covering is added in floodgate bottom plate chisel groove |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57123315A (en) * | 1981-01-20 | 1982-07-31 | Mitsubishi Heavy Ind Ltd | Sand scouring gate |
| JP2002069984A (en) * | 2000-08-31 | 2002-03-08 | Nkk Corp | Water gate incorporating in sub gate |
| CN2575153Y (en) * | 2002-08-28 | 2003-09-24 | 倪锡才 | Shallow sea single pipe platform reinforced bulkhead |
| CN102322043A (en) * | 2011-06-10 | 2012-01-18 | 天津大学 | Double-guideway inclined-plane steel gate system |
| CN109826163A (en) * | 2019-03-11 | 2019-05-31 | 中国水利水电第十四工程局有限公司 | A kind of device and its silt-proof method that the underwater sand surfing of gate is anti-silting |
| CN209603092U (en) * | 2018-12-25 | 2019-11-08 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of dam sluice gate sand discharge apparatus |
-
2019
- 2019-06-06 CN CN201910489473.5A patent/CN110374062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57123315A (en) * | 1981-01-20 | 1982-07-31 | Mitsubishi Heavy Ind Ltd | Sand scouring gate |
| JP2002069984A (en) * | 2000-08-31 | 2002-03-08 | Nkk Corp | Water gate incorporating in sub gate |
| CN2575153Y (en) * | 2002-08-28 | 2003-09-24 | 倪锡才 | Shallow sea single pipe platform reinforced bulkhead |
| CN102322043A (en) * | 2011-06-10 | 2012-01-18 | 天津大学 | Double-guideway inclined-plane steel gate system |
| CN209603092U (en) * | 2018-12-25 | 2019-11-08 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of dam sluice gate sand discharge apparatus |
| CN109826163A (en) * | 2019-03-11 | 2019-05-31 | 中国水利水电第十四工程局有限公司 | A kind of device and its silt-proof method that the underwater sand surfing of gate is anti-silting |
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| CN110374062A (en) | 2019-10-25 |
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Effective date of registration: 20210420 Address after: 132000 left door, 14th floor, unit 2, block a, Songhuajiang building, 10 Shenzhen street, Fengman District, Jilin City, Jilin Province Applicant after: Zhao Yongxian Applicant after: Zhao Xiaoxia Address before: Group 1, Baishan Power Plant Committee, Minghua street, Huadian City, Jilin Province Applicant before: Zhao Xiaoxia |
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