Lub Broad Crested Weir Broad crested weirs yog cov qauv muaj zog uas feem ntau tsim los ntawm cov pob zeb uas muaj zog thiab feem ntau nthuav dav tag nrho ntawm cov channel. Lawv yog siv los ntsuas cov dej ntws tawm, thiab haum rau lub hom phiaj no ntau dua li cov flimsy ntse crested weirs.
broad crested weir siv rau dab tsi?
Cov broad crested weirs yog cov qauv hydraulic dav siv rau ntsuas qhov tob thiab ntsuas dej hauv thaj teb thiab chaw kuaj cov kwj dej. Lub geometry piav raws li ib tug ca-crested qauv nrog ib tug ntev (L) ntawm crest loj txaus piv rau cov ntws thickness tshaj lub crest ntawm lub weir.
Qhov txawv ntawm qhov dav crested weir thiab ntse crested weir yog dab tsi?
Lub ntsej muag ntse yuav pab kom ntsuas cov dej ntawmcov dej ntws me thiab cov kwj dej thiab cov weir tau muab tso rau hauv cov dej ntws. Qhov dav crested weir yog ib qho uas cov dej ntws tawm hauv ntsuas los ntawm cov dej loj xws li cov kwj dej loj.
Yuav ua li cas yog crested weir?
Ntsuab crested weirs (tseem hu ua nyias-phaj weirs los yog notches) yog siv kom tau txais kev tso tawm hauv cov dej qhib los ntawm kev ntsuas cov dej taub hau ntawm cov kav dej. Weirs tau siv dav hauv kev coj ua dej, chaw sim thiab kev lag luam.
Yuav ua li cas yog hom weir?
Type of Weirs
- Type ofWeirs raws li Cov Duab Ntawm Qhov Qhib. Rectangular weir. Daim duab peb sab. Trapezoidal weir.
- Hom Weirs raws li Cov Duab ntawm Crest. Sharp-crested weir. Broad-crested weir. Narrow-crested weir. Ogee-shaped weir.
- Hom weirs raws li Qhov cuam tshuam ntawm ob sab ntawm qhov tshwm sim nappe.
