CN205604193U - High dam reservoir unloading device - Google Patents
High dam reservoir unloading device Download PDFInfo
- Publication number
- CN205604193U CN205604193U CN201620378158.7U CN201620378158U CN205604193U CN 205604193 U CN205604193 U CN 205604193U CN 201620378158 U CN201620378158 U CN 201620378158U CN 205604193 U CN205604193 U CN 205604193U
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- valve
- gate slot
- bypass line
- gate
- drain water
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Abstract
The utility model discloses a high dam reservoir unloading device, the device is equipped with in along the perpendicular gliding shutoff gate of gate slot including establishing the diversion tunnel in dam body or massif bottom, the gate slot outside is equipped with the by -pass line who walks around the gate slot, and by -pass line's water inlet lies in gate slot upper reaches lateral wall, and by -pass line's delivery port lies in the low reaches lateral wall of gate slot, by -pass line's delivery port low reaches are equipped with lets out the water blocking head, lets out and is equipped with multilayer sluicing pipeline in the water blocking head, by -pass line and water -drain mast all are equipped with the combination valve on the road. The utility model discloses fine solution the technical problem that travels empty of reservoir, put under the circumstances of water facilities safety guaranteeing, the water with the reservoir travels empty as far as possible to ensure hydraulic and hydroelectric engineering's safe operation.
Description
Technical field
This utility model relates to a kind of high dam reservoir emptying device, belongs to Hydraulic and Hydro-Power Engineering technical field.
Background technology
Gate as power station a kind of relatively frequently with emptying facility, with current technology level, by arranging spillway, the successively sluicing mode such as flood discharging tunnel and emptying tunnel can be by about 150m below reservoir emptying to normal pool level, but for domestic will be in the high dam big storehouse engineering of the many 300m levels built for, if below normal pool level about 150m can only be vented to, storage capacity deep for nearly 150m is also had to be vented, generation earthquake will be there is, the in emergency circumstances reservoir level such as war reduces not enough problem, therefore engineering yet suffers from greater risk, the needs that engineering safety runs can not be met, so prior art is the most perfect.
Utility model content
The purpose of this utility model is, it is provided that a kind of high dam reservoir emptying device, in the case of guarantee discharges water installation security, is vented by the water of reservoir as far as possible, to guarantee Hydraulic and Hydro-Power Engineering
Safe operation, thus overcome the deficiencies in the prior art
。
The technical solution of the utility model is achieved in that
A kind of high dam reservoir emptying device of the present utility model is that this device includes being located at the diversion tunnel bottom dam body or massif, is provided with the closure gate along gate slot vertical sliding motion in diversion tunnel；Being provided with the bypass line walking around gate slot outside described gate slot, the water inlet of bypass line is positioned at gate slot upstream sidewall, and the outlet of bypass line is positioned at the downstream sidewall of gate slot；The outlet downstream of described bypass line is provided with sluicing plug, is provided with multilamellar drain water circuit in sluicing plug；It is equipped with combined valve on bypass line and drain water circuit.
In aforementioned means, described combined valve is the compound mode that eccentric half-ball valve or butterfly valve or ball valve add piston valve；Eccentric half-ball valve or butterfly valve or ball valve are positioned on the inlet pipeline of piston valve.
In aforementioned means, the water inlet of described bypass line and drain water circuit is equipped with garbage barrier net.
In aforementioned means, being provided with stiling basin below the front end of the outlet of described drain water circuit, the outlet of drain water circuit is downward-sloping facing to stiling basin.
Owing to have employed technique scheme, compared with prior art, this utility model utilizes diversion tunnel to be transformed into emptying tunnel to this utility model, need not excavate new emptying tunnel, effectively save investment.This utility model arranges bypass line inside closure gate slot, can be to closure gate water-filling concora crush by bypass line, and therefore closure gate can double as emptying tunnel bulkhead gate, provides maintenance condition for sluicing plug and drain water circuit valve related facility；Sluicing plug is set after closure gate, and multilamellar sluicing path is set in sluicing plug, achieved the emptying requirement of high dam reservoir by sluicing path.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the C-C sectional view of Fig. 2；
Fig. 4 is the B-B sectional view of Fig. 1；
Fig. 5 is the water stream channel schematic diagram on dam body or massif.
Being labeled as in figure: 1-diversion tunnel, 2-gate slot, 3-bypass line, 4-closure gate, 5-sluicing plug, 6-upper strata diversion tunnel, 7-flood discharging tunnel, 8-spillway, 9-drain water circuit, 10-garbage barrier net, 11-eccentric half-ball valve or butterfly valve or ball valve, 12-piston valve, 13-outlet, 14-stiling basin.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, but not as to any restriction of the present utility model.
The remodeling method of a kind of high dam reservoir diversion tunnel of the present utility model, as Figure 1-4, the method be by dam body or massif bottom diversion tunnel be transformed into emptying tunnel；Concrete remodeling method is the bypass line arranging connection closure gate upstream and downstream in the gate slot of the closure gate of diversion tunnel, by bypass line, closure gate downstream is carried out water-filling concora crush, and the water pressure reducing closure gate upstream and downstream both sides is poor；Sluicing plug is set in the diversion tunnel in closure gate downstream simultaneously, is provided with multilamellar drain water circuit in sluicing plug, by drain water circuit, the water in storehouse is vented further；Bypass line and drain water circuit are provided with combined valve.Combined valve uses the mode of eccentric half-ball valve+piston valve, or uses the mode of butterfly valve+piston valve；Or use the mode of ball valve+piston valve；Piston valve is operating valve, eccentric half-ball valve or butterfly valve or ball valve is emergency repair or protection valve；Eccentric half-ball valve or butterfly valve or ball valve are positioned on piston valve inlet pipeline；The dash head of combined valve up to 300 meters and more than, dynamic water running head up to 250 meters and more than；The safety vent requirement of 300 meter level dams is met by the combined valve on drain water circuit and drain water circuit.The water inlet of bypass line and drain water circuit is equipped with garbage barrier net, intercepts bigger dirt in water by garbage barrier net and enters pipeline, it is to avoid causes pipeline blockage.In bypass line, after piston valve, tube outlet is downward-sloping, it is to avoid water impact cavern side wall during water-filling concora crush.Being provided with stiling basin below the front end of drain water circuit outlet, drain water circuit outlet is downward-sloping facing to stiling basin；To guarantee that outlet stream pours stiling basin from the top down, strengthen effect of energy dissipation.
The of the present utility model a kind of high dam reservoir emptying device constituted according to said method, including the diversion tunnel 1 being located at bottom dam body or massif, is provided with the closure gate 4 along gate slot 2 vertical sliding motion in diversion tunnel 1；Being provided with the bypass line 3 walking around gate slot 2 outside described gate slot 2, the water inlet of bypass line 3 is positioned at gate slot upstream sidewall, and the outlet of bypass line 3 is positioned at the downstream sidewall of gate slot 2；The outlet downstream of described bypass line 3 is provided with sluicing plug 5, is provided with multilamellar drain water circuit 9 in sluicing plug 5；It is equipped with combined valve on bypass line 3 and drain water circuit 9.Combined valve is the compound mode that eccentric half-ball valve or butterfly valve or ball valve 11 add piston valve 12；Eccentric half-ball valve or butterfly valve or ball valve 11 are positioned on the inlet pipeline of piston valve 12.The water inlet of bypass line 3 and drain water circuit 9 is equipped with garbage barrier net 10.Being provided with stiling basin 14 below the front end of the outlet 13 of drain water circuit 9, the outlet 13 of drain water circuit 9 is downward-sloping facing to stiling basin 14.
Embodiment
Fig. 5 is the water stream channel schematic diagram on dam body or massif, and as seen from Figure 5, existing dam is from top to bottom generally provided with the water stream channels such as spillway 8, flood discharging tunnel 7, upper strata diversion tunnel 6 and diversion tunnel 1.The method of this example is that the diversion tunnel 1 utilizing dam body or massif bottommost is transformed into emptying tunnel.To realize the purpose being vented by the water in reservoir.Concrete grammar is as Figure 1-4, outside the gate slot 2 of closure gate 4, bypass line 9 is set, after closure 4 times locks of gate, after closure gate 4, sluicing plug 5 is set, requirement according to discharge, which floor drain water circuit 9 of respective numbers is set in sluicing plug 5 from bottom to up, drain water circuit 9 sets gradually garbage barrier net 10, eccentric half-ball valve or butterfly valve or ball valve 11 and piston valve 12 by the flow direction downstream, the outlet 13 of piston valve 12 is arranged by being gradually increased mode with horizontal line angle from bottom to up, arranges stiling basin 14 below the outlet 13 of piston valve 12；Wherein the closure gate 2 dash head during the installation and debugging of sluicing plug 5 and drain water circuit 9 controls to sluice by upper strata diversion tunnel 6, flood discharging tunnel 7 or spillway 8, after sluicing plug 5 and drain water circuit 9 valve related facility installation and debugging, by withdrawing closure gate 2 after bypass line 3 water-filling concora crush, bypass line 3 is U-shaped.Owing to have employed eccentric half-ball valve or butterfly valve or the compound mode of ball valve 11+ piston valve 12, dash head up to 300 meters and more than, dynamic water running head up to 250 meters and more than, therefore reservoir can be vented to less than 200 meters, meet the requirement of 300 meter level dam safeties emptying；In addition; eccentric half-ball valve or butterfly valve or ball valve 11 are as piston valve 12(operating valve) accident protection measure; when piston valve 12 runs and breaks down, moveable water closes the repair and maintenance offer condition blocking the expansion of current Accident prevention, the most alternatively sluice pipe and piston valve；Additionally, bypass line 3 is set outside gate slot 2, can be after sluicing plug and drain water circuit valve related facility installation and debugging, can be to closure gate water-filling concora crush by bypass line, therefore closure gate can double as emptying tunnel bulkhead gate, provides maintenance condition for sluicing plug and drain water circuit valve related facility；Finally, emptying facility is arranged in the plug of diversion tunnel, utilizes diversion tunnel to be transformed into emptying tunnel, need not excavate new emptying tunnel, effectively save investment.Arranging multilamellar drain water circuit 9 in sluicing plug from bottom to up, every layer can have a plurality of drain water circuit 9；Garbage barrier net 10, eccentric half-ball valve or butterfly valve or ball valve 11 and piston valve 12 is set gradually by the flow direction downstream at drain water circuit 9；The outlet 13 of piston valve 12 is arranged by being gradually increased mode with horizontal line angle from bottom to up, arranges stiling basin 14 below the outlet 13 of piston valve 12；Aforementioned flow direction downstream sets gradually garbage barrier net 10, eccentric half-ball valve or butterfly valve or ball valve 11 and piston valve 12；And the outlet 13 of piston valve 12 is downward-sloping.
This utility model has a characteristic that
(1) emptying and bypass line water-filling concora crush facility use eccentric half-ball valve (or butterfly valve or ball valve)+piston valve compound mode, eccentric half-ball valve, butterfly valve, ball valve and piston valve dash head up to 300 meters and more than, dynamic water running head up to 250 meters and more than, therefore reservoir can be vented to less than 200 meters, meet 300 emptying of meter level dam safety and the technology requirements of extra-high head water-filling concora crush.
(2) eccentric half-ball valve or butterfly valve or ball valve are as the accident protection measure of piston valve (operating valve); when piston valve runs and breaks down; moveable water closes the repair and maintenance offer condition blocking the expansion of current Accident prevention, the most alternatively sluice pipe and piston valve.
(3) inside blocking sluice gate of diversion tunnel groove, bypass line is set, can be after sluicing plug and drain water circuit valve related facility installation and debugging, can be to blocking sluice gate of diversion tunnel water-filling concora crush by bypass line, therefore blocking sluice gate of diversion tunnel can double as emptying tunnel bulkhead gate, provides maintenance condition for sluicing plug and drain water circuit valve related facility.
(4) in emptying facility is arranged on the plug of diversion tunnel, utilize diversion tunnel to be transformed into emptying tunnel, new emptying tunnel need not be excavated, effectively save investment.
(5) drain water circuit and bypass line front end arrange garbage barrier net, can prevent bigger dirt from entering pipeline.
(6) arranging stiling basin below the pipeline of piston valve outlet, the pipeline of piston valve outlet is arranged by being gradually increased mode with horizontal line angle from bottom to up, can make piston valve outlet stream to lower impact, strengthen effect of energy dissipation.
(7) in bypass line, after piston valve, pipe outlet is downward-sloping, water impact cavern side wall when can prevent water-filling concora crush.
Claims (4)
1. a high dam reservoir emptying device, including the diversion tunnel (1) being located at bottom dam body or massif, is provided with the closure gate (4) along gate slot (2) vertical sliding motion in diversion tunnel (1)；It is characterized in that: described gate slot (2) outside is provided with the bypass line (3) walking around gate slot (2), and the water inlet of bypass line (3) is positioned at gate slot upstream sidewall, and the outlet of bypass line (3) is positioned at the downstream sidewall of gate slot (2)；The outlet downstream of described bypass line (3) is provided with sluicing plug (5), is provided with multilamellar drain water circuit (9) in sluicing plug (5)；It is equipped with combined valve on bypass line (3) and drain water circuit (9).
High dam reservoir emptying device the most according to claim 1, it is characterised in that: described combined valve is the compound mode that eccentric half-ball valve or butterfly valve or ball valve (11) add piston valve (12)；Eccentric half-ball valve or butterfly valve or ball valve (11) are positioned on the inlet pipeline of piston valve (12).
High dam reservoir emptying device the most according to claim 1, it is characterised in that: the water inlet of described bypass line (3) and drain water circuit (9) is equipped with garbage barrier net (10).
High dam reservoir emptying device the most according to claim 1, it is characterised in that: being provided with stiling basin (14) below the front end of the outlet (13) of described drain water circuit (9), the outlet (13) of drain water circuit (9) is downward-sloping facing to stiling basin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378158.7U CN205604193U (en) | 2016-04-29 | 2016-04-29 | High dam reservoir unloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378158.7U CN205604193U (en) | 2016-04-29 | 2016-04-29 | High dam reservoir unloading device |
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| Publication Number | Publication Date |
|---|---|
| CN205604193U true CN205604193U (en) | 2016-09-28 |
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ID=56967947
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620378158.7U Active CN205604193U (en) | 2016-04-29 | 2016-04-29 | High dam reservoir unloading device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469026A (en) * | 2018-12-21 | 2019-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of equalizing pipe for high dam water blocking blowdown system step by step |
| CN109667248A (en) * | 2018-12-21 | 2019-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of multistage water blocking blowdown system for high dam engineering |
-
2016
- 2016-04-29 CN CN201620378158.7U patent/CN205604193U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469026A (en) * | 2018-12-21 | 2019-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of equalizing pipe for high dam water blocking blowdown system step by step |
| CN109667248A (en) * | 2018-12-21 | 2019-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of multistage water blocking blowdown system for high dam engineering |
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