CN211498768U - Gate combining blocking and discharging of diversion tunnel - Google Patents
Gate combining blocking and discharging of diversion tunnel Download PDFInfo
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- CN211498768U CN211498768U CN201921742070.9U CN201921742070U CN211498768U CN 211498768 U CN211498768 U CN 211498768U CN 201921742070 U CN201921742070 U CN 201921742070U CN 211498768 U CN211498768 U CN 211498768U
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- diversion tunnel
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- shutoff
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Abstract
The utility model discloses a gate that diversion tunnel shutoff and discharge combined together, including the diversion tunnel, radial gate is installed to the one end of diversion tunnel, and radial gate's upper reaches are installed rather than plane shutoff and the accident gate that mutually supports the use, set up on the inboard roof of diversion tunnel with the gate slot of mutually supporting of plane shutoff and the accident gate, fixed mounting has the pull rod on the roof of plane shutoff and the accident gate, and the top of pull rod is connected with headstock gear. The utility model discloses well diversion tunnel discharge flow adopts radial gate, adopt plane shutoff and accident gate manger plate behind the radial gate lower floodgate, radial gate water seal arrangement only needs to satisfy the floodgate head that rises in the blocked 24 hours of shutoff of highest running head lower floodgate, and this head that rises is usually lower than final manger plate flood peak, generally not more than 80m, adopt conventional pre-compaction water seal arrangement can satisfy the stagnant water requirement, can not adopt complicated pressurized stagnant water or eccentric hinge water stop arrangement, the convenient investment that just saves of operation.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering metal structure technique and specifically relates to a gate and device that diversion tunnel shutoff and discharge combined together.
Background
Based on environmental protection and low reaches water supply requirement, diversion tunnel shutoff gate still needs to satisfy the requirement of the flow of releasing downstream during lower floodgate retaining, and the tradition only sets up 1 fan radial gate in the diversion tunnel, radial gate is simultaneously released and two functions of shutoff, its operation mode is that the ecological flow of releasing through opening radial gate earlier when the power station lower floodgate is impounded, when the water level holds upper sluicing passageway, close radial gate, continue to release ecological flow through the last layer sluicing passageway again, this is not high to dam height's water and electricity engineering, its radial gate operation flood peak and manger plate flood peak are not high.
The utility model discloses a method and a device for draining ecological flow by using the existing plugging gate, which is applied by China Electricity construction group Guiyang survey design research institute Limited company (CN 106836153A). The utility model is characterized in that ecological drainage holes are respectively arranged at two sides of the lower part of the existing plugging gate, a steel gate slot corresponding to the ecological drainage holes is arranged at the upstream side of the ecological drainage holes, and the steel gate slot and the upstream surface of the plugging gate are welded to form an integral structure; an ecological gate is arranged in the steel gate groove, and the upper part of the ecological gate is connected with the hydraulic press oil cylinder through a pull rod; the upper part of the hydraulic press oil cylinder is hinged with a cantilever support at the top of the upstream side of the plugging gate; before the lower gate water storage of the power station starts, the ecological gate on the upstream side of the ecological drainage hole is in a closed state, after the lower gate of the plugging gate of the diversion tunnel is closed, the ecological gate on the upstream side of the ecological drainage hole is opened through the hydraulic machine oil cylinder to drain ecological flow, and after the permanent drainage channel on the upper layer of the power station overflows, the ecological gate is closed. According to the scheme, a branch tunnel does not need to be arranged beside the diversion tunnel, the procedures of gate descending plugging and ecological flow discharging are simple, the investment is saved, and the construction period and the plugging period can be effectively shortened.
The utility model patent (CN108316259A) applied by Yangtze river survey planning and design research, LLC discloses diversion tunnel single temporary plug combined gate lower gate plugging arrangement and method, which comprises a plurality of diversion tunnels (9) forming a diversion tunnel group, wherein the diversion tunnel group is divided into two batches of lower gates, and the diversion tunnels (9) which are firstly lower gates comprise a diversion tunnel inlet section (1) and a diversion tunnel body (1.1); a low water head plugging gate (3) is arranged at the diversion tunnel inlet section (1), a water inlet tower (2) is arranged at the diversion tunnel inlet section (1), and a small-capacity hoist (4) is arranged at the top of the water inlet tower (2); a temporary plug (7) is arranged at the upstream section of the diversion tunnel body (1.1), and a permanent plug (8) is arranged at the downstream side of the temporary plug (7). The scheme overcomes the defects of high water retaining head, large capacity of the hoist and large engineering investment of the diversion tunnel plugging gate in the prior art.
Although the prior art all improves the diversion tunnel plugging gate to a certain extent, the following problems are not considered: for high dam and reservoir hydroelectric engineering of narrow river valleys, a multi-layer diversion tunnel plugging gate arrangement mode is usually adopted, the height between a lower diversion tunnel and an adjacent upper diversion tunnel is large, the operation water head of the radial gate is high and is more than 70m, the radial gate vibrates strongly, the whole lower gate plugging fails due to the fact that the gate cannot be closed, and the recovery risk of opening and closing equipment of the radial gate is great; in addition, because the narrow river valley water level after the radial gate is downshutch is fast to rise, when the construction plug does not reach enough strength, the radial gate is very high in pressure-bearing water head, some of the pressure-bearing water head is more than 130m, if a conventional prepressing water seal is adopted, the water seal device can seriously leak water due to overlarge precompression, and difficulty is brought to subsequent construction plugging, if a pressurizing water stopping or eccentric hinge water stopping device under the action of an ultrahigh water head is adopted, a gate groove needs to be suddenly expanded and fallen, a gate leaf needs to be enlarged, a hydraulic press needs to be added for the eccentric hinge water stopping type radial gate, the investment is increased more, the economy is poor, and the prior art is not perfect enough and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the deficiency of the prior art, and the provided gate that the shutoff of diversion tunnel and releasing combined together.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a gate that diversion tunnel shutoff and discharge combined together, includes the diversion tunnel, radial gate is installed to the one end of diversion tunnel, radial gate's upper reaches are installed rather than plane shutoff and the accident gate of mutually supporting use, set up the gate slot of mutually supporting with plane shutoff and the accident gate on the roof of diversion tunnel inboard, fixed mounting has the pull rod on the roof of plane shutoff and the accident gate, the top of pull rod is connected with headstock gear.
Preferably, the opening and closing device comprises a fixed winch fixedly installed at the top end of the pull rod, and the top end of the pull rod is fixedly connected to the fixed winch.
Preferably, the opening and closing device comprises a vertical hydraulic machine fixedly mounted at the top end of the pull rod, and the top end of the pull rod is fixedly connected to a hanging head of the vertical hydraulic machine.
Preferably, an upper locking platform and a lower locking platform which are matched with the pull rod are arranged in the door slot, a locking beam matched with the pull rod is installed at the lower locking platform, and a cover plate is arranged at the top end of the upper locking platform.
Compared with the prior art, the utility model discloses there is following beneficial effect:
firstly, the discharge flow of the diversion tunnel adopts a radial gate, a plane plugging and an accident gate water retaining are adopted after the radial gate is closed, the radial gate water sealing device only needs to meet the requirement of an upwelling water head of the retaining gate within 24 hours of the closed plugging of the gate with the highest running water head, the upwelling water head is usually lower than the final water retaining water head and generally does not exceed 80m, the water sealing requirement can be met by adopting a conventional prepressing water sealing device, the complicated pressurizing water sealing or eccentric hinge water sealing device can not be adopted, the operation is convenient and the investment is saved;
secondly, if the lower gate is blocked during the blocking of the radial gate, the plane blocking and movable water closing door of the accident gate blocks water flow to realize the blocking, so that the blocking reliability of the diversion tunnel is effectively improved; the plane gate pre-pressing type water sealing device has better water sealing and water stopping effects under an ultrahigh water head than the radial gate, and can meet the water stopping requirements under the ultrahigh water head;
and the plane plugging and accident gate is connected with the operating equipment fixed winch or the vertical hydraulic machine through the pull rod, the top of the pull rod is lower than the upper locking platform when the plane plugging and accident gate is in a water blocking state, the hoist lifting head of the hoist can be conveniently detached after the gate is successfully downshucked, the upper locking platform is provided with a cover plate for sealing, the cover plate bears an upwelling water head, the hoist can be recovered without being influenced by the upwelling water head, and investment is effectively saved.
Drawings
Fig. 1 is a schematic view of a radial gate in a gate combining blocking and discharging of a diversion tunnel provided by the present invention in a discharging flow state;
fig. 2 is a schematic view of a plane plugging and accident gate in a gate combining diversion tunnel plugging and discharging provided by the present invention, wherein the lower gate is in a closed state;
fig. 3 is a schematic view of the cover plate of the gate embodiment 1 combining diversion tunnel blocking and releasing provided by the present invention in a sealed state;
fig. 4 is a schematic view of the radial gate of the gate embodiment 2 combining diversion tunnel plugging and discharge according to the present invention in a discharge flow state;
fig. 5 is a schematic view of the plane plugging and accident gate of the gate embodiment 2 combining the plugging and discharging of the diversion tunnel according to the present invention, the lower gate of which is in a closed state;
fig. 6 is a schematic view of the cover plate of the gate embodiment 2 combining diversion tunnel blocking and releasing according to the present invention in a sealed state;
fig. 7 is a cross-sectional view of the cover plate of fig. 3 and 6 according to the present invention.
Description of reference numerals: the hydraulic system comprises a diversion tunnel 1, a radial gate 2, a plane plugging and accident gate 3, a pull rod 4, a fixed winch 5, a gate slot 6, an upper locking platform 7, a lower locking platform 8, a locking beam 9, a cover plate 10 and a vertical hydraulic machine 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3 and fig. 7, as an embodiment (scheme 1), the utility model discloses a diversion tunnel shutoff and gate that releases and combine together, including diversion tunnel 1, radial gate 2 is installed to diversion tunnel 1's one end, and radial gate 2's upper reaches are installed rather than plane shutoff and accident gate 3 that mutually supports the use, set up the gate slot 6 of mutually supporting with plane shutoff and accident gate 3 on the roof of diversion tunnel 1 inboard, fixed mounting has pull rod 4 on the roof of plane shutoff and accident gate 3, and the top of pull rod 4 is connected with headstock gear, and headstock gear includes fixed mounting at the fixed hoist 5 on pull rod 4 top, and the top fixed connection of pull rod 4 is on fixed hoist 5.
The diversion tunnel 1 adopts the radial gate 2 to release flow, and during plugging, the plane plugging and accident gate 3 in a locking state is unlocked and is placed above the orifice to be ready, the radial gate 2 is closed when the water level rises to meet the requirement of the release flow of the upper drainage channel, and then the plane plugging and accident gate 3 is closed again.
The gate slot 6 of the plane plugging and accident gate 3 is provided with an upper locking platform and a lower locking platform, the upper locking platform 7 is higher than the top of the pull rod 4 when the plane plugging and accident gate 3 is in a water blocking state, the lower locking platform 8 meets the requirement that the pull rod 4 is locked on the locking beam 9 when the plane plugging and accident gate 3 is in the water blocking state, and the upper locking platform 7 is provided with a cover plate 10 for sealing after the plane plugging and accident gate 3 is successfully closed.
Referring to fig. 4-7, as another embodiment (scheme 2), the utility model discloses a gate that diversion tunnel shutoff and discharge combined together, including diversion tunnel 1, radial gate 2 is installed to diversion tunnel 1's one end, radial gate 2's the upper reaches are installed rather than plane shutoff and accident gate 3 that mutually supports the use, set up the gate slot 6 of mutually supporting with plane shutoff and accident gate 3 on the roof of diversion tunnel 1 inboard, fixed mounting has pull rod 4 on the roof of plane shutoff and accident gate 3, the top of pull rod 4 is connected with headstock gear, headstock gear includes the vertical hydraulic press 11 of fixed mounting on pull rod 4 top, and the top fixed connection of pull rod 4 is on vertical hydraulic press 11's hanger.
The diversion tunnel 1 adopts the radial gate 2 to release flow, and during plugging, the plane plugging and accident gate 3 in a locking state is unlocked and is placed above the orifice to be ready, the radial gate 2 is closed when the water level rises to meet the requirement of the release flow of the upper drainage channel, and then the plane plugging and accident gate 3 is closed again.
The gate slot 6 of the plane plugging and accident gate 3 is provided with an upper locking platform and a lower locking platform, the upper locking platform 7 is higher than the top of the pull rod 4 when the plane plugging and accident gate 3 is in a water blocking state, the lower locking platform 8 meets the requirement that the pull rod 4 is locked on the locking beam 9 when the plane plugging and accident gate 3 is in the water blocking state, and the upper locking platform 7 is provided with a cover plate 10 for sealing after the plane plugging and accident gate 3 is successfully closed.
In the utility model, a plane plugging and accident gate 3 is arranged in front of a traditional radial gate 2 of the diversion tunnel 1, the plane plugging and accident gate 3 is connected with an operation equipment fixed winch 5 or a vertical hydraulic machine 11 through a pull rod 4, the diversion tunnel 1 adopts the radial gate 2 to discharge flow, when plugging, the plane plugging and accident gate 3 in a locking state is unlocked and put to the upper part of an orifice for standby, the radial gate 2 is closed when the water level rises to the upper layer of the discharge flow of a drainage channel, then the plane plugging and accident gate 3 is closed again, a gate slot 6 of the plane plugging and accident gate 3 is provided with an upper locking platform and a lower locking platform, the upper locking platform 7 is higher than the top of the pull rod 4 when the plane plugging and accident gate 2 is in a water blocking state, the lower locking platform 8 meets the requirement that the pull rod 4 is locked on a locking beam 9 when the plane plugging and accident gate 3 is in the water blocking state, after the plane plugging and accident gate 3 is successfully closed, the upper locking platform 7 is provided with a cover plate 10 for sealing.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a gate that diversion tunnel shutoff and discharge combined together, includes diversion tunnel (1), radial gate (2), its characterized in that are installed to the one end of diversion tunnel (1): the upper reaches of radial gate (2) are installed rather than plane shutoff and accident gate (3) of mutually supporting use, set up gate slot (6) of mutually supporting with plane shutoff and accident gate (3) on the roof of diversion tunnel (1) inboard, fixed mounting has pull rod (4) on the roof of plane shutoff and accident gate (3), the top of pull rod (4) is connected with headstock gear.
2. The gate for combined blockage and discharge of a diversion tunnel according to claim 1, wherein: the opening and closing device comprises a fixed winch (5) fixedly installed at the top end of the pull rod (4), and the top end of the pull rod (4) is fixedly connected to the fixed winch (5).
3. The gate for combined blockage and discharge of a diversion tunnel according to claim 1, wherein: the opening and closing device comprises a vertical hydraulic machine (11) fixedly installed at the top end of the pull rod (4), and the top end of the pull rod (4) is fixedly connected to a hanging head of the vertical hydraulic machine (11).
4. The gate for combined blockage and discharge of a diversion tunnel according to claim 1, wherein: be equipped with in door slot (6) and lock platform (7) and lower lock platform (8) of locking mutually supporting with pull rod (4), lock platform (8) department down installs and locks roof beam (9) of mutually supporting with pull rod (4), the top of locking platform (7) is equipped with apron (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921742070.9U CN211498768U (en) | 2019-10-17 | 2019-10-17 | Gate combining blocking and discharging of diversion tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921742070.9U CN211498768U (en) | 2019-10-17 | 2019-10-17 | Gate combining blocking and discharging of diversion tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211498768U true CN211498768U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921742070.9U Active CN211498768U (en) | 2019-10-17 | 2019-10-17 | Gate combining blocking and discharging of diversion tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211498768U (en) |
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2019
- 2019-10-17 CN CN201921742070.9U patent/CN211498768U/en active Active
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