CN202108034U - 排箫式多向型进口吸沙导沙涵 - Google Patents

排箫式多向型进口吸沙导沙涵 Download PDF

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CN202108034U
CN202108034U CN2011201587325U CN201120158732U CN202108034U CN 202108034 U CN202108034 U CN 202108034U CN 2011201587325 U CN2011201587325 U CN 2011201587325U CN 201120158732 U CN201120158732 U CN 201120158732U CN 202108034 U CN202108034 U CN 202108034U
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sediment
culvert
guiding
training
water inlet
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吴艳频
王志刚
张建华
邹军贤
赵冬莲
秦根泉
董存焱
刘仁德
许文阳
李连国
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Jiangxi water conservancy planning and Design Institute
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Jiangxi Provincial Water Conservancy Planning And Designing Institute
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract

本实用新型公开了一种排箫式多向型进口吸沙导沙涵，涉及水电站泥沙淤积的处理装置。所述导沙涵两侧有吸沙导沙涵边墙(1-1)，导沙涵是左侧低右侧高结构，导沙涵左侧较窄有导沙涵出口(4)，导沙涵右侧较宽并有电站进水口(5),电站进水口(5)内侧沿导沙涵水流方向设置有导流墩(2)，导流墩(2)自吸沙导沙涵底板(1-2)延伸至吸沙导沙涵顶板(1-3)；在电站进水口(5)侧面吸沙导沙涵边墙(1-1)上有二个呈阶梯结构的侧向进水口(3)，侧向进水口(3)与电站进水口(5)朝向相同。本实用新型解决了目前水电站泥沙处理设施存在的工程量大，造价高，冲排沙效果不好的问题。

Description

排箫式多向型进口吸沙导沙涵
技术领域
本实用新型涉及水电站泥沙淤积的处理装置。
背景技术
泥沙淤积是水电站普遍存在的问题，由于泥沙淤积，使得水库的有效库容逐年减少，电站的调节性能降低，影响大坝上游工程的使用和安全，同时对沿河两岸工农业生产造成很大隐患。国内有大量的电站因为冲排沙问题没解决，水库淤积影响电站运行，甚至会影响电站安全和设计使用寿命。因此，泥沙问题是每个电站设计要考虑的关键性问题。在国内，常见的冲沙防淤措施有设置冲沙泄洪孔、拦砂坝、导沙堤、水库上游的拦排沙设施，以及水土保持等措施，但这些措施没有有效的解决电站泥沙问题，而且有些措施工程量大，造价高，冲排沙效果不好。
发明内容
本实用新型提供一种排箫式多向型进口吸沙导沙涵，本实用新型解决了目前水电站泥沙处理设施存在的工程量大，造价高，冲排沙效果不好的问题。
为解决上述问题，本实用新型采用如下技术方案：所述导沙涵两侧有吸沙导沙涵边墙1-1，导沙涵是左侧低右侧高结构，导沙涵左侧较窄有导沙涵出口4，导沙涵右侧较宽并有电站进水口5,电站进水口5内侧沿导沙涵水流方向设置有导流墩2，导流墩2自吸沙导沙涵底板1-2延伸至吸沙导沙涵顶板1- 3；在电站进水口5侧面吸沙导沙涵边墙1-1上有二个呈阶梯结构的侧向进水口3，侧向进水口3与电站进水口5朝向相同。
本实用新型的优点有：排箫式多向型进口吸沙导沙涵采用多向、阶梯式进口，正向进口为喇叭，根据水流的特性结合结构的需要采用流线型的导流墩分隔，利用水流的虹吸原理，其吸、导、排沙能力强，吸沙导沙涵的高速压力水流的流态好，在冲沙泄洪底孔冲、排沙时，进水口前流态稳定，不影响电站的发电，且仅有少量的悬浮质泥沙进入流道，对水轮发电机几乎没有影响。同时，由于采用新型薄壁结构，工程量少，施工简单，投资少。经过在水电站的实验，水电站采用这种新型的吸沙导沙涵后，根据冲沙模型试验成果和电站1年来的运行情况，电站进水口“门前清”问题得到有效解决。
附图说明
图1是本实用新型俯视图；
图2是图1右侧面的展开图。
图中符号说明：吸沙导沙涵边墙1-1、吸沙导沙涵底板1-2、吸沙导沙涵顶板1-3、导流墩2、侧向进水口3、导沙涵出口4、电站进水口5。
具体实施方式
如图1-2所示，排箫式多向型进口吸沙导沙涵，所述导沙涵两侧有吸沙导沙涵边墙1-1，导沙涵是左侧低右侧高结构，导沙涵左侧较窄有导沙涵出口4，导沙涵右侧较宽并有电站进水口5,电站进水口5内侧沿导沙涵水流方向设置有导流墩2，导流墩2自吸沙导沙涵底板1-2延伸至吸沙导沙涵顶板1- 3；在电站进水口5侧面吸沙导沙涵边墙1-1上有二个呈阶梯结构的侧向进水口3，侧向进水口3与电站进水口5朝向相同。
在冲沙泄洪底孔前设排箫式多向型进口吸沙导沙涵。这种新型吸沙导沙涵长79.32m，正向进水采用左低右高的流线型结构型式，宽24.16m，高12.6～10.27m,设4个导流墩；左侧一前一后设两个侧向进水口，进口尺寸分别为6.8×7.0m，3.08×7.0m（宽×高），导沙涵出口与冲沙泄洪底孔进口相接。吸沙导沙涵采用轻型薄壁结构，边墙底板顶板厚均为1m，流线型导流墩厚0.6m。（结构详见附图1）这样设计的吸沙导沙涵，具有流态好，吸沙排沙功能强，工程量少，投资省等特点。
最后应说明的是：显然，上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的显而易见的变化或变动仍处于本实用新型的保护范围之中。

Claims (1)

1.排箫式多向型进口吸沙导沙涵，其特征在于，所述导沙涵两侧有吸沙导沙涵边墙(1-1)，导沙涵是左侧低右侧高结构，导沙涵左侧较窄有导沙涵出口(4)，导沙涵右侧较宽并有电站进水口(5),电站进水口(5)内侧沿导沙涵水流方向设置有导流墩(2)，导流墩(2)自吸沙导沙涵底板(1-2)延伸至吸沙导沙涵顶板(1- 3)；在电站进水口(5)侧面吸沙导沙涵边墙(1-1)上有二个呈阶梯结构的侧向进水口(3)，侧向进水口(3)与电站进水口(5)朝向相同。
CN2011201587325U 2011-05-18 2011-05-18 排箫式多向型进口吸沙导沙涵 Expired - Fee Related CN202108034U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103938594A (zh) * 2014-04-29 2014-07-23 项方岩 一种江河抗洪治理机构
CN106498911A (zh) * 2016-11-18 2017-03-15 中国电建集团成都勘测设计研究院有限公司 取水口冲沙结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103938594A (zh) * 2014-04-29 2014-07-23 项方岩 一种江河抗洪治理机构
CN106498911A (zh) * 2016-11-18 2017-03-15 中国电建集团成都勘测设计研究院有限公司 取水口冲沙结构

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Address after: 330200 Jiangxi province Nanchang County Jiangxi billion building science and Technology Industrial Park Dong Lian Road No. 88

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Granted publication date: 20120111

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