CN204982820U - A lock chamber arrangement structure that is used for high arch dam water conservancy diversion bottom outlet - Google Patents

A lock chamber arrangement structure that is used for high arch dam water conservancy diversion bottom outlet Download PDF

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Publication number
CN204982820U
CN204982820U CN201520546798.XU CN201520546798U CN204982820U CN 204982820 U CN204982820 U CN 204982820U CN 201520546798 U CN201520546798 U CN 201520546798U CN 204982820 U CN204982820 U CN 204982820U
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CN
China
Prior art keywords
lock chamber
outlet
water conservancy
conservancy diversion
diversion outlet
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CN201520546798.XU
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Chinese (zh)
Inventor
张公平
周钟
唐忠敏
饶宏玲
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PowerChina Chengdu Engineering Co Ltd
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PowerChina Chengdu Engineering Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Abstract

The utility model discloses a lock chamber arrangement structure especially relates to a lock chamber arrangement structure that is used for high arch dam water conservancy diversion bottom outlet, belongs to the design of hydraulic and hydroelectric engineering building and builds technical field. The utility model provides a neither influence water conservancy diversion bottom outlet earial drainage ability, under the water conservancy diversion bottom outlet after the floodgate shutoff, have the sufficient time to demolish the lock chamber arrangement structure who is used for the flood discharge of high arch dam water conservancy diversion of the headstock gear of the stifled gate of water conservancy diversion underseal again. Lock chamber arrangement structure include that flood discharge deep hole, water conservancy diversion bottom outlet shutoff lock chamber and water conservancy diversion bottom outlet shutoff floodgate open and close the computer lab, the cope level of water conservancy diversion bottom outlet shutoff lock chamber is not higher than the floor elevation of flood discharge deep hole, water conservancy diversion bottom outlet shutoff floodgate is opened and close the computer lab and is arranged more than the roof elevation of flood discharge deep hole.

Description

For the lock chamber arrangement of induced joint bottom diversion outlet
Technical field
The utility model relates to a kind of lock chamber arrangement, especially relates to a kind of lock chamber arrangement for induced joint bottom diversion outlet, belongs to Hydraulic and Hydro-Power Engineering Building Design building technology field.
Background technology
Induced joint bottom diversion outlet is arranged on the position of monolith in the middle part of arch dam riverbed, dam body middle and lower part usually, its main purpose is the requirement in order to meet construction period impoundment ahead generating, namely be not yet poured at arch dam the requirement that top just starts reservoir impoundment power generation, as the interim outlet structure escape works of flood discharge water, operation water level under the construction middle and later periods.Bottom diversion outlet is generally just as construction period sluicing facility use temporarily, to carry out shutoff process in the runtime, because bottom diversion outlet is arranged in arch dam, bottom, runtime working head is too high, exceeded the working head of gate, and under let out too high easily the causing of flow rate of water flow and seriously wash away.In order to meet the requirement of flood discharge water under the runtime, usually also need on bottom diversion outlet top to arrange deep hole as the facility that forever sluices.Bottom diversion outlet is provided with twice gate usually: one is Service gate, is generally Segment gate, after being arranged on dam, is mainly used in construction period control aperture earial drainage; Two is shutoff gates, is generally bulkhgead gate, before being arranged in dam, is be responsible for keying by the headstock gear framed bent arranged before dam, uses for permanent runtime shutoff bottom diversion outlet.
In prior art, for diversion outlet closuring gate, common on-off structure has two classes.
The first kind is arranged in by the headstock gear of diversion outlet closuring gate to extend on the bottom diversion outlet gate pier on deep hole top.The feature of this structure is: bottom diversion outlet gate pier crest level is positioned at more than deep hole; Headstock gear is arranged on bottom diversion outlet gate pier.The major advantage of this structure is: headstock gear is arranged in more than deep hole, and under bottom diversion outlet after lock shutoff, by flood discharge water, operation water level under deep hole, bottom diversion outlet hole shutoff gate opening/closing machine equipment can have the sufficient time to remove.This structure major defect is: due to bottom diversion outlet gate pier being extended down to more than deep hole, for deep hole inlet location, is equivalent to increase one section of gate pier newly, and then deep hole runner is extended, and head loss increases, and the discharge capacity of deep hole is also affected.Show according to relevant test result, relative to the deep hole build do not affected by bottom diversion outlet gate pier, deep hole discharge capacity have dropped about 10%.
Equations of The Second Kind the headstock gear of water conservancy diversion bottom seal gate is arranged in gate pier crest level be positioned on the bottom diversion outlet gate pier of deep hole bottom.The feature of this structure is: bottom diversion outlet gate pier crest level is positioned at below deep hole; Headstock gear is arranged on bottom diversion outlet gate pier, and headstock gear is all positioned at below deep hole elevation.The major advantage of this structure is: deep hole inlet location is no longer subject to the impact that bottom diversion outlet gate pier prolongs, and deep hole discharge capacity is protected.The major defect of this structure is: because headstock gear is arranged in below deep hole, under bottom diversion outlet after lock shutoff, without flood discharge water, operation water level under other apertures between bottom diversion outlet and deep hole, upper water potential drop rises rapidly, and then flooding bottom diversion outlet headstock gear, headstock gear equipment will be removed without enough time.
Utility model content
Technical problem to be solved in the utility model is: provide one neither to affect bottom diversion outlet discharge capacity, under bottom diversion outlet after lock shutoff, grace time is had again to remove the lock chamber arrangement for induced joint bottom diversion outlet of the headstock gear of water conservancy diversion bottom seal gate.
For solving the problems of the technologies described above adopted technical scheme be: a kind of lock chamber arrangement for induced joint bottom diversion outlet, comprise low-leveled outlet, diversion outlet closuring lock chamber and diversion outlet closuring lock headstock gear, the crest level of described diversion outlet closuring lock chamber is not higher than the floor elevation of described low-leveled outlet, and described diversion outlet closuring lock headstock gear is arranged in more than the top board elevation of described low-leveled outlet.
The beneficial effects of the utility model are: do not ensure bottom diversion outlet discharge capacity higher than the floor elevation of described low-leveled outlet by being arranged at by the crest level of described diversion outlet closuring lock chamber; Realize under bottom diversion outlet after lock shutoff by described diversion outlet closuring lock headstock gear is arranged in more than the top board elevation of described low-leveled outlet, have again grace time to remove the headstock gear of diversion outlet closuring gate.
Further, the crest level of described diversion outlet closuring lock chamber and the floor elevation of described low-leveled outlet adapt.
Further, described diversion outlet closuring lock headstock gear also comprises bottom framed bent, and described diversion outlet closuring lock headstock gear is arranged in more than the top board elevation of described low-leveled outlet by described bottom framed bent.
The preferred embodiment of such scheme is, described low-leveled outlet also comprises maintenance lock gate pier, and the lower end of described bottom framed bent is supported on the top of described diversion outlet closuring lock chamber, and the downstream of described bottom framed bent is supported on the upstream side side of described maintenance lock gate pier.
Further, the downstream of described diversion outlet closuring lock headstock gear and the upstream side side of described induced joint one-body molded.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that lock chamber arrangement of the present utility model is arranged on dam.
Be labeled as in figure: low-leveled outlet 1, diversion outlet closuring lock chamber 2, diversion outlet closuring lock headstock gear 3, bottom framed bent 4, maintenance lock gate pier 5, induced joint 6.
Detailed description of the invention
Be that the one that the utility model provides neither affects bottom diversion outlet discharge capacity as shown in Figure 1, under bottom diversion outlet after lock shutoff, have again grace time to remove the lock chamber arrangement for high arch dam construction water conservancy diversion of the headstock gear of diversion outlet closuring gate.Described lock chamber arrangement comprises low-leveled outlet 1, diversion outlet closuring lock chamber 2 and diversion outlet closuring lock headstock gear 3, it is characterized in that: the crest level of described diversion outlet closuring lock chamber 2 is not higher than the floor elevation of described low-leveled outlet 1, and described diversion outlet closuring lock headstock gear 3 is arranged in more than the top board elevation of described low-leveled outlet 1.Like this, just can effectively by the crest level of described diversion outlet closuring lock chamber 2 be arranged do not ensure bottom diversion outlet discharge capacity higher than the floor elevation of described low-leveled outlet 1; Realize under bottom diversion outlet after lock shutoff by described diversion outlet closuring lock headstock gear 3 is arranged in more than the top board elevation of described low-leveled outlet 1, have again grace time to remove the headstock gear of diversion outlet closuring gate.
In above-mentioned embodiment, all larger in conjunction with bottom diversion outlet envelope lock, therefore open and close the also larger feature of load, in order to simplify described bottom outlet diversion shutoff lock headstock gear 3, to be arranged into the arrangement of more than the top board elevation of described low-leveled outlet 1 both simple, safety again, reduce again the impact on low-leveled outlet discharge capacity to greatest extent simultaneously, first the crest level of described diversion outlet closuring lock chamber 2 is arranged adapt with the floor elevation of described low-leveled outlet 1, and then described diversion outlet closuring lock headstock gear 3 is set to the form of structure also comprising bottom framed bent 4, and make described diversion outlet closuring lock headstock gear 3 be arranged in more than the top board elevation of described low-leveled outlet 1 by described bottom framed bent 4.Like this, not only ensure that the vertical force structure of bottom framed bent, thus make the structure of diversion outlet closuring lock headstock gear 3 become comparatively succinct, and in the process of described bottom diversion outlet earial drainage, due to bottom diversion outlet envelope person lock chamber not on be extended down to low-leveled outlet scope, low-leveled outlet inlet location is no longer subject to the impact of bottom diversion outlet gate pier, and only just by the impact of headstock gear framed bent, and make the loss of low-leveled outlet entrance head comparatively affect build by bottom diversion outlet gate pier and significantly reduce, and then low-leveled outlet discharge capacity is protected.Show according to correlation test achievement, the bottom framed bent that the application adopts is only 1% for the impact of low-leveled outlet discharge capacity.Maintenance lock gate pier 5 is also comprised again in conjunction with described low-leveled outlet 1, described diversion outlet closuring lock headstock gear 3 is arranged in the design feature of induced joint 6 upstream side, the lower end of described bottom framed bent 4 is supported on the top of described diversion outlet closuring lock chamber 2, the downstream of described bottom framed bent 4 is supported on the upstream side side of described maintenance lock gate pier 5; And by the downstream of described diversion outlet closuring lock headstock gear 3 and the upstream side side of described induced joint 6 one-body molded.Like this, make the structure of described diversion outlet closuring lock chamber 2 the simplest under just can ensureing to open and close load maximal condition.

Claims (5)

1. the lock chamber arrangement for induced joint bottom diversion outlet, comprise low-leveled outlet (1), diversion outlet closuring lock chamber (2) and diversion outlet closuring lock headstock gear (3), it is characterized in that: the crest level of described diversion outlet closuring lock chamber (2) is not higher than the floor elevation of described low-leveled outlet (1), and described diversion outlet closuring lock headstock gear (3) is arranged in more than the top board elevation of described low-leveled outlet (1).
2. the lock chamber arrangement for induced joint bottom diversion outlet according to claim 1, is characterized in that: the crest level of described diversion outlet closuring lock chamber (2) and the floor elevation of described low-leveled outlet (1) adapt.
3. the lock chamber arrangement for induced joint bottom diversion outlet according to claim 2, it is characterized in that: described diversion outlet closuring lock headstock gear (3) also comprises bottom framed bent (4), and described diversion outlet closuring lock headstock gear (3) is arranged in more than the top board elevation of described low-leveled outlet (1) by described bottom framed bent (4).
4. the lock chamber arrangement for induced joint bottom diversion outlet according to claim 3, it is characterized in that: described low-leveled outlet (1) also comprises maintenance lock gate pier (5), the lower end of described bottom framed bent (4) is supported on the top of described diversion outlet closuring lock chamber (2), and the downstream of described bottom framed bent (4) is supported on the upstream side side of described maintenance lock gate pier (5).
5. the lock chamber arrangement for induced joint bottom diversion outlet according to any one of Claims 1 to 4, is characterized in that: the downstream of described diversion outlet closuring lock headstock gear (3) and the upstream side side of described induced joint (6) one-body molded.
CN201520546798.XU 2015-07-24 2015-07-24 A lock chamber arrangement structure that is used for high arch dam water conservancy diversion bottom outlet Active CN204982820U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520546798.XU CN204982820U (en) 2015-07-24 2015-07-24 A lock chamber arrangement structure that is used for high arch dam water conservancy diversion bottom outlet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520546798.XU CN204982820U (en) 2015-07-24 2015-07-24 A lock chamber arrangement structure that is used for high arch dam water conservancy diversion bottom outlet

Publications (1)

Publication Number Publication Date
CN204982820U true CN204982820U (en) 2016-01-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988271A (en) * 2017-05-23 2017-07-28 中国电建集团成都勘测设计研究院有限公司 The water conservancy diversion aperture plugging structure of concrete dam body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988271A (en) * 2017-05-23 2017-07-28 中国电建集团成都勘测设计研究院有限公司 The water conservancy diversion aperture plugging structure of concrete dam body

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