Vortex Flowmeter: a ụkpụrụ nke edinam

Vortex flowmeters dabeere na periodicity nke mgbali mgbanwe, nke a kpụrụ ke eruba mgbe a na ihe ụfọdụ ẹdude na mmetụta dị aṅaa ma ọ bụ n'oge ugboelu oscillation na vortex guzobere.

ugwu

The akpa ngwaọrụ nke ụdị pụtara na 60s nke ikpeazụ nke narị afọ. Ha isi mwepu bụ obere nso nke n'ihe parameters na ịrịba njehie. Kọmputa a vortex flowmeter aghọwo ihe ọkaibe, oru oma ma nweta ọtụtụ uru, nke kwesịrị ịgụnye ndị na-esonụ:

• ikwu mfe nke n'ihe usoro;
• data bụ mgbe mụ, adịghị adabere na okpomọkụ na dị mgbali;
• mmesho, ji elu kpomkwem;
• ji atụ linear n'ókè;
• siri ike na mfe imewe;
• obosara e ji atụ nso;
• static ọcha;
• ọnụnọ nke onwe onye na-nchoputa ọrụ na ụfọdụ ụdị.

-adịghị emezi emezi

Rosemount vortex Flowmeter e mere iji rụọ ọrụ na ọkpọkọ na a diametrical size nke 20 300 mm, dị ka ọjà na a nta size iche ejighị n'aka vortex guzobere, na ime ihe na a zuru ezu elu ego siri ike. N'ihi ya, ọ dịghị ekwe omume nke iji na ala eruba udu, n'ihi na nke mgbagwoju anya nke mgbaàmà n'ihe na a ịrịba gụnyere ya ná nsogbu. Ọzọkwa vibration na ụda olu na ụdị Ripple emetụta ọrụ nke na ngwaọrụ. Ka jijiji conduit-eme dị ka nnyonye anya na compressors. Ha mkpochapu bụ omume site imezi vane, n'ịnyịnya na n'ọnu-miri, ma ọ bụ wụnye ọzọ drive njikọ na a counter na electronic nzacha na ikpe nke iche nke n'ihe n'ókè na pulsation ugboro.

nhazi ọkwa

E nwere atọ variants nke na ngwaọrụ na-iche site na ụdị Ntụgharị:

• Vortex flowmeter, agaghi asu bụrụnụ ndị kwụ chịm ahụ na-arụ ọrụ nke bụ isi ngwaọrụ. Nke nta nke nta, na ma akụkụ ya kpụrụ vortices ofufe mgbe ezigbo ahụ uzo, n'ihi na nke na kpụrụ ripple.
• Usoro na a n'usoro n'usoro eruba n'ime isi Ntụgharị, nke mgbali pulsation na-eme site n'ịkpa a foneelu udi na gbasaa òkè nke pipeline.
• Vortex flowmeters, na a iyi dị ka a Ntụgharị. Na nke a, na nsogbu pulsation na-nyere site fluctuations na ugboelu.

The mbụ na nke abụọ na nsụgharị nke ngwá ogologo dabara definition nke a vortex flowmeter. Ma n'ihi na-agbanwe agbanwe ọdịdị nke atọ ụdị Ndahie eruba, ọ na-emetụta Atiya. Onye kasị ukwuu myirịta nke e ji mara hụrụ na usoro nke akụkụ nke mbụ na nke atọ n'onwe.

Flowmeter vortex ụzọ na a streamlined Ntụgharị

Mgbe ahụ a na-encircled eruba ụzọ direction na-agbanwe agbanwe ụgbọ elu, n'out oge na-amụba ha ike ọsọ na mgbali tụlee. Agbara mgbanwe emee mgbe ufọt ufọt ngalaba nke ihe. On ya reverse n'akụkụ Nleta a ala nsogbu, na na n'ihu - elu. Mgbe agafe ókè oyi akwa doo ahu na n'okpuru nduzi nke ala mkpakọ emepụta a vortex, na mgbe na-agbanwe agbanwe trajectory. Nke a bụ ahụkarị nke ma ndị streamlined ahụ mbak. Emejuputa nwetụ guzobere vortices na abụọ, n'ihi na ha na-egbochi e guzobere otu onye ọzọ. Mgbe arịba ama na e kere eke nke Karman track.

Special eruba ahu nwere a na-arụ ọrụ ụgbọ elu Self-ihicha ruru ka vortices, ọbụna ma ọ bụrụ na kpamkpam mmeru gburugburu, ha dị ọcha mgbe nile.

Akụkụ na rapidity eruba ra nrata ka ugboro nke omume nke vortices, nke kwekọrọ na ọsọ na mgbe nile na-size, ya mere olu eruba. Ọ bụrụ na a ufọk ufene vortex guzobere pụtara na ala eruba udu nke umi, mgbe ahụ flowmeter n'ihe nso nke 20 l / min.

The aerodynamic imewe nke ahu

Counter vortex flowmeter N'ozuzu dabeere na a trapezoidal prismatic mmewere, zita ma ọ bụ akụkụ anọ ụdị. The ewu nke mbụ n'onwe bụ kwupụta mmiri. Nyere a ụfọdụ mgbali mfu dị ọcha kpụrụ oscillations zuru ezu mgbe nile na ike. Ke adianade do, a pụrụ iche mma na-eme ememe na akakabarede nke mmepụta n'ókè.

Vortex flowmeter na ụfọdụ nwere ike iji abụọ streamlined ngwaọrụ amụba mmepụta n'ókè, nke ikpe na ha na-mere ndokwa na a ofu anya. Na n'akụkụ nke abụọ nke akụkụ anọ prisms bụ piezoelectric, zoro ezo na-agbanwe mkpa membranes, si otú na-efu ohere mmetụta now mkpọtụ.

ụdị tọghatara

E nwere ọtụtụ ụzọ iji tọghata mmepụta n'ókè nke Eddy mgbanwe. The kasị n'ọtụtụ enwetara ọsọ aga streamlined ọcha na Ịhazi mgbanwe nsogbu. The N'ịchọpụta mmewere bụ otu ma ọ bụ abụọ conductive thermal anemometer ụdị. Eji Ultrasound, tụnyere, capacitive na inductive eruba transducer. N'ihi na kwesịrị ekwesị ọrụ nke vortex flowmeter ga nwere a free ewepụghị akụkụ nke ọjà tupu ndị ọzọ.

Isi ike Operating na ọkpọkọ na ubara n'obosara mere site na-esonụ:

• Ibe ọnụ mgbe nile;
• Ibe ala arụpụtaghị;
• ibelata na ngụkọta ọnụ ọgụgụ nke oscillations.

The foneelu ekara vortex flowmeters: ụkpụrụ nke edinam

Na ndị a ngwaọrụ nwere converters usoro maka asọfe stream-ebute site ná site na a òkè nke pipeline ya ogologo n'akụkụ ma ọ bụ site na obere cylindrical nozulu. Etolite a foneelu a kpụrụ na tube, na gburugburu ya axis agbagharị banyere ihe axis na-akpụ akpụ na ya na vortex isi. Eruba ke n'elu akụkụ nwere a mgbali pulsing n'out oge na angular ije nke ntọala, mgbe ọ bụ hà olu eruba ọnụego ma ọ bụ linear ike ọsọ. Conductive thermoanemometers ma ọ bụ electromechanical so tọghatara ike ọsọ ma ọ bụ ugboro ole nke pulsations maka ọtụtụ ọwa. The usoro na-agụnye abụọ n'ụzọ: nke mbụ nyefe volumetric eruba a kpụrụ na vortex precession ugboro na-ahụ ghọọ a ugboro mgbaàmà.

Flowmeter dabeere na oscillating jets

Agafe nozulu, ndị gas ma ọ bụ mmiri mmiri iyi bụ a diffuser na a cross ngalaba na ụdị a rektangulu. Mgbe ụfọdụ, eruba n'aka na-enwe na a n'otu isi ihe dị iche iche mgbidi diffuser. Electrifying onwunwe ntụrụndụ ugboelu ngwaọrụ ebelata nrụgide na elu n'ógbè uzo anwụrụ, nke na ala nke ọ na-anọgide otu na ije-emepụta ụgbọ njem iyi ka ala nke diffuser. Mgbe anwụrụ na rim uwa okporo ụzọ mgbanwe, na-abịa oscillating ugboelu.

Jet sandwiched na ala nke diffuser mmewere converters Hydraulic laghachi njikọ anwụrụ na-aga ebe outputting n'omume. Na MKpọnwụ elu ọwa ekenyela òkè nke ugboelu na-agafe mbụ nozulu, ọ na-agafere na ala itie ke iyi nke abụọ nozulu. Mgbe ahụ kewapụta akụkụ na-aga n'ime elu ọwa MKpọnwụ, oscillation usoro emee mgbe umklapp ala, mgbe e nwere a n'otu oge mgbanwe ke mgbali ma eruba n'akụkụ.

The inverter nke ụdị ihe ò. N'ihi ike ya a kpụrụ na oscillation ọrịa strok bụ chee a kpọmkwem mmetụta na ọnụego nke oscillation ugboro.

The kasị n'ọtụtụ ebe na Yokogawa vortex flowmeters kpatarari ọkpọkọ na a obere dayameta a kacha nke 90 mm. Mgbe ụfọdụ, nke a na ụdị ngwaọrụ a na-eji dị ka a dochie anya na ele mmadụ anya n'ihu converters.

Taa, àgwà nke eruba nke n'ichepụta bụ mgbe niile evolving na e nwere ndị ọhụrụ atụmatụ, n'agbanyeghị eziokwu na ndị dị otú ngwaọrụ nwere a pụtara ogologo oge nke iji. Mmepe na-achọ ihe dị irè imewe ngwọta ike na nkà na ụzụ nhọrọ a-arụpụtakwu ihe.