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LWS型平面型钢拦污格栅,DL/5018-94标准技术文件执行,选用图集90s503-35页。
来源:拦污格栅制造专家作者:老张网址:http://www.chinakelan.com浏览数:911 
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LWS型平面型钢拦污格栅,设计生产包衣机中华人民共和国水利部《水利水电工程钢闸门制造安装及验收规范》DL/5018-94标准技术文件执行,选用图集90s503-35页。

LWS型平面型钢拦污,由型钢框架、栅条经焊接组成。该平面型钢拦污具有外形美观、结构简单、安装方便、操作安全、拦漂浮物强、使用寿命长、维修费用的等优点.

钢制拦污栅设在进水口前,用于拦阻水流挟带的水草、漂木等杂物(一般称污物)的框栅式结构。

钢制拦污由边框、横隔板和栅条构成,支承在混凝土墩墙上,一般用钢材制造。栅条间距视污物大小、多少和运用要求而定。水电站用的栅条间距取决于水轮机型号及尺寸,以保证通过拦污栅的污物不会卡在水轮机过流部件中为准。泄水隧洞和泄水孔一般不设拦污栅,如洞径或孔径不大,而沉木较多需要设置时,栅条间距宜加大。

钢制拦污所受荷载,除自重外,主要是污物堵塞后,在栅前后由于水位差形成的水荷载,一般按 2~4m水头考虑。拦污栅的栅面尺寸决定于过栅流量和允许过栅流速。为减少水头损失和便于清污,一般要求过栅流速不大于1.0m/s左右。拦污栅可以做成固定的或能够起吊的。

LWS type of plane steel bar grating, design production coating machine of the People's Republic of China ministry of water resources water resources and hydropower engineering steel gate manufacture installation and acceptance standard \"DL / 5018-94 standard technical files, choose atlas s503 90-35.

LWS type of plane steel bar grating, is made up of steel framework, article grate after welding. The flat steel bar corrupt grille has a beautiful appearance, simple structure, convenient installation, safe operation, block floater is strong, long service life, maintenance cost, etc.

Steel bar before fouling grille is located in the inlet, used for water flood of reeds, and drift wood debris of the box lattice structure (commonly called dirt).

Steel bar corrupt grid made up of frame, diaphragm plate and grille bar, bearing on concrete block wall, generally made of steel. Article grid spacing depending on the dirt size, how much, and use requirements. Article hydropower station in the grid spacing depends on the turbine models and sizes, in order to make sure by blocking the dirt grille dirt won't card shall prevail in the turbine flow components. Drainage tunnel and general no drain grating grille drain hole, such as hole diameter or size is not big, but wood is more need to set up, grille bar spacing should be increased.

Steel bar grating by load, in addition to the dead weight, mostly contamination jams, formed in the grid due to the difference between before and after the water load, generally considered by 2 ~ 4 m head. Drain grating grille grille surface size depends on the grille flow and allow the grid velocity. In order to reduce head loss and easy clean-up, general asked about grille flow rate is not more than 1.0 m/s. Drain grating grating used as the fixed or capable of lifting.




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