Lefoo I-Turbine Flowmeter

I-Turbine flowmeter uhlobo oluyinhloko lwe-velocity flowmeter. Isebenzisa i-rotor eminingi-blade (turbine) ukuzwa izinga lokugeleza elijwayelekile loketshezi, futhi ithola ukugeleza noma inani eliphelele lemitha.

Ngokuvamile, yakhiwe ngezingxenye ezimbili, inzwa nensimbi yokubonisa, futhi ingenziwa ibe uhlobo oluhlanganisiwe.

Ukugeleza kwe-Turbine, ukugeleza okuhle kokufuduka, kanye nama-Coriolis mass flowmeters aziwa njengezinhlobo ezintathu zama-flowmeter anephindaphindeka kahle nokunemba. Njengenye yezinhlobo eziyishumi zama-flowmeter, imikhiqizo yabo ikhule yaba izinhlobo ezahlukahlukene ze-Scale zokukhiqizwa kwe-serial.

Isibuko sokusebenzisa

Ama-Turbine flowmeter asetshenziswa kabanzi kulezi zinto ezilandelayo zokulinganisa: uphethiloli, uketshezi lwezinto eziphilayo, uketshezi olungaphili, Igesi ehlisiwe, igesi yemvelo kanye nezinhlelo ze-cryogenic fluid. EYurophu nase-United States, ama-turbine flowmeters wesibili kuphela kuma-orifice flowmeters ngokuya ngesilinganiso semvelo. Izinsimbi, iNetherlands iyodwa isebenzise ama-ges turbine angaphezu kuka-2 600 osayizi nezingcindezi ezihlukahlukene kusuka ku-0.8 kuye ku-6.5MPa kugesi yemvelo. amapayipi, futhi sebe yizinsimbi ezinhle kakhulu zokulinganisa igesi yemvelo.

Isimiso sokusebenza

Uketshezi ugeleza ngezindlu zezinzwa. Njengoba ama-blades we-impeller ane-engeli ethile enendlela yokugeleza, ukufaka uketshezi kubangela ukuthi ama-blade abe ne-torque ejikelezayo. Ngemuva kokunqoba i-friction torque nokumelana noketshezi, ama-blade ayazungeza. Ngemuva kokuthi i-torque ilinganiselwe, ijubane lizinzile. Ngaphansi kwezimo ezithile, ijubane lokujikeleza lilingana nezinga lokugeleza. Ngenxa yokuthi i-blade igcwele ngozibuthe, isenkambeni kazibuthe yomtshina wesiginali (eyakhiwe ngensimbi kazibuthe unomphela nekhoyili). Isiginali ye-pulse kagesi yenziwa, futhi isiginali iyakhuliswa futhi yakhiwe yi-amplifier ukwakha igagasi eliqhubekayo le-pulse elinoxande eline-amplitude ethile, okungadluliselwa kuthuluzi lokubonisa ukukhombisa ukugeleza okusheshayo kanye nevolumu eqoqiwe yoketshezi. Ngaphakathi kwebanga elithile lokugeleza, imvamisa ye-pulse f ilingana nezinga lokugeleza okusheshayo i-Q koketshezi olugeleza ngenzwa, futhi i-equation yokugeleza yile: Q = 3600 × f / k

Lapho:

F--pulse imvamisa [Hz];

K-Isici semitha yenzwa [1 / m], enikezwe uhlu lokuhlola. Uma iyunithi [1 / L] Q = 3.6 × f / k

Q-Ukugeleza okusheshayo koketshezi (ngaphansi kwesimo sokusebenza) [m3 h];

3600 - ingxenye yokuguqula.

I-coefficient yensimbi yenzwa ngayinye igcwaliswa isitifiketi sokuqinisekisa ngumenzi, futhi inani le-k lisethwe kuthuluzi lokubonisa elifanayo, elingakhombisa ukugeleza okusheshayo nenani elihlanganisiwe.

Amaphutha ajwayelekile ngesikhathi sokusebenza

Lapho umoya ocindezelwe olinganiswe yi-turbine flowmeter ehlanganisiwe unikezwa ipayipi le-bypass, asilitholi noma yisiphi isicelo kupayipi elikhulu lesifunda esisifakile. Ngidinga ukuhlanganisa i-valve yesihlungi esihambisanayo bese ngihlunga igesi ngokufanele. Lapho ifakwa ekuqaleni, uma idatha yezobuchwepheshe ye-valve ilahlekile noma ingafakwa kahle, izothinta kakhulu ukunemba kokulinganisa kokugeleza. Ngaphezu kwalokho, uma sifaka i-flowmeter eceleni phansi, ukuze ikhanda layo lemitha eliqongelelayo likhombisa ukuvimbela phansi, isiphetho sokuhlangana sikazibuthe sivumelanisa ibhokisi legiya, njengendawo yokugcina amanzi, amagiya nawo amabheringi akulona ukunakekelwa okunengqondo, futhi ingxenye yawo yegiya iphazamiseka kakhulu, ukuthwala kubambekile, Njll., i-rotor ngeke ikwazi ukujikeleza, i-valve yesihlungi izovela ukugqwala, ukunamathela kwesikrini sokuhlunga nokunye ukungcola, futhi umgodi we-flowmeter uvinjelwe izinsalela, njll. Kuzoholela ekwehlulekeni kokuphakelwa komoya nasekuvinjelweni okukhulu.