Vortex Flowmeter: mafungiro chiito

Vortex flowmeters dzinobva periodicity zvavaida shanduko, iyo achiumbwa aibuda pashure mumwe zvipingamupinyi huripo ari Mapaipi kana panguva ndege oscillation uye vortex inotungamirwa.

chiremera

The umhare ichi mhando rokutanga akazviratidza muna 60s remakore rapfuura. chikuru chinetso chavo chaiva kuwanda diki yakayerwa parameters uye kukanganisa chinokosha. Electronic ano vortex flowmeter kwazova yakagozha, zvokufambisa uye vakawana zvakanaka zvizhinji, izvo zvinofanira kusanganisira zvinotevera:

• ari hama nyore nokuyerwa hurongwa;
• date anogara kugadzikana, hakunei tembiricha uye iripo kumanikidzwa;
• kuyerwa, dzinoratidzwa yakakwirira zvakarurama;
• kuyera Linear anonongedzera;
• nesimba uye nyore kugadzira;
• yakafara tambo siyana;
• kunofambira mberi zvinhu;
• pamberi vaizviona zvokuongorora mashandiro vamwe yokutevedzera.

kutadza

Rosemount Vortex Flowmeter rakagadzirirwa kushanda senyere ane diametrical kukura 20 kusvika 300 neMM, sezvo nyere vane saizi diki akasiyana kusagadzikana vortex inotungamirwa, uye kushanda pane imwe zvakakwana yakakwirira huwandu kwakaoma. Saka hapana mukana kushandisa yakaderera aibuda rates, nekuda kunzwisisa chiratidzo kuyerwa uye chinokosha zvinoderedza dzvinyiriro. Uyewo vibration uye ruzha mhando ripple zvazvinoita kushanda mudziyo. Sezvo vibrating rukoronga anoita se kukanganiswa compressors. kubviswa kwavo ivepo kuswatura vanekuva, vakatasva panguva Inlet, kana kuisa mamwe ngarurege ine chokuita pakaunda uye zvemagetsi filters panyaya kusiyana nokuyerwa anonongedzera uye pulsation maitikiro.

kupatsanura

Kune dzakasiyana vatatu mano dzakaparadzaniswa mhando convert:

• Vortex flowmeter, sezvamakaropafadzwa usingazungunuke muviri chinoita basa rinonyanya mudziyo. Zvishoma nezvishoma, nedivi payo vakaumba vortices dzibhururuke mushure chaiye muviri yokunzvenga, nokuda izvo uye kuumbwa ripple.
• Zvigadziriswe ane kutenderera aibuda chikuru convert iyo kumanikidza pulsation iri kunotangira yaienderana fanera chimiro pabindu kuwedzerwa zviri Mapaipi.
• Vortex flowmeters, pamwe karwizi somunhu convert. Muchiitiko chino, kumanikidzwa pulsation pamusoro jets inopiwa vibrations.

The shanduro mbiri chiridzwa rokutanga yakareba anoenderana tsanangudzo vortex flowmeter. Asi nokuda unochinja hunhu rechitatu mhando misha aibuda, izvozvo zvinoshandawo muchikwata. Kufanana mukuru zvatariswa kuchengetwa nedanho ndima yokutanga uye wechitatu musimboti.

Flowmeter vortex peya imwe streamlined convert

Kana muviri dzakandipoteredza aibuda nzira mirayiridzo kuchinja ndege, panguva imwe chete kuwedzera kwavo velocity uye kumanikidzwa madonhwe. The neizvi kuchinja kunoitika pashure epakati Chikamu chinhu. On yaro neizvi divi anoumba munhu pasi kumanikidzwa, uye pamberi - dzakakwirira. Mushure achipfuura kumuganhu rukoko mumuviri uye vakadhakwa yakaderera compression pave vortex, uye kana kuchinja trajectory. Izvi ndizvo zvose streamlined mugove muviri. Chinozoiswa rakatumbuka inotungamirwa vortices kumativi ose, nokuti kuvhiringidza paumbwe mumwe. Nepo tikacherechedza kusikwa Karman njanji.

Special kuyerera muviri ine kushanda ndege Self-kuchenesa nokuda vortices, kunyange kana doro kusvibiswa runyararo, vane nguva dzose dzakachena.

Miganhu uye rapidity riyerere Proportional kuti kakawanda panowanikwa vortices, izvo unoenderana pakukurumidza panguva kugara kukura, uye saka vhoriyamu chekubuda zvakananga. Kana mudanga vortex inotungamirwa ndepana yakaderera chokubuda prices yamarudzi, ipapo flowmeter kuyerwa-siyana 20 l / min.

The aerodynamic akaitwa muviri

Counter vortex flowmeter unowanzoonekwa pahwaro trapezoidal prismatic Kufananidzira, mativi kana rectangular chimiro. Kuvakwa wokutanga musimboti kurutivi mvura. Kupiwa mumwe kumanikidzwa kurasikirwa kwakadaro zvinhu vakaumba oscillations pamwe kakawanda yakakwana uye simba. Uyezve, munhu anokosha kurerukirwa vakapemberera mukutaurirana pakati goho anonongedzera.

Vortex flowmeter mune zvimwe zviitiko anogona kushandisa miviri streamlined mudziyo kuti kuwedzera goho anonongedzera, umo nyaya vari vakaronga kure yakatarwa. Kudivi rectangular prisms wechipiri vari piezoelectric, yakavanzika kwakavharwa nenyama matete membranes, nokudaro kupotsa mukana itibatsire acoustic ruzha.

marudzi kutendeuka

Pane nzira dzakawanda kutendeutsa goho anonongedzera ari Eddy kuchinja. The nevakawanda vawana kupfuura nokukurumidza runoyerera streamlined okunze uye hurongwa kuchinja kuitiswa. The vachifunga chaikosha mumwe maviri conductive chafariz anemometer mhando kana. Used Ultrassom, kusanganisa, capacitive uye inductive chokubuda transducer. For zvakakodzera nokushanda vortex flowmeter anofanira kuva wakasununguka sandara chikamu nenyere pamberi mumwe.

Zvinetso Mudzimu senyere ane vakawedzera dhayamita anokonzerwa zvinotevera:

• Nokudeura kuderera kakawanda;
• Kusvimha pasi zvibereko;
• kuderera mune uwandu oscillations.

The fanera serin'i vortex flowmeters: nheyo chiito

In namano izvi nhaka converters nomazviri ichitenderera rukova kuburikidza chikamu Mapaipi kwayo nevazukuru divi kana kuburikidza diki cylindrical kamwene. Kuumba fanera achiumbwa munyika chubhu, uye kumativi ayo akabatana rotates pamusoro akabatana chichifamba nawo vortex core. Kuerera iri repamusoro chikamu ane kumanikidzwa pulsing panguva imwe chete chete chisina kutsetseka kwebasa musimboti, nepo akaenzana vhoriyamu aibuda mwero kana Linear velocity. Conductive thermoanemometers kana electromechanical nhengo anotendeuka velocity kana kakawanda pulsations kuti tambo makwara. The kwacho kunosanganisira maitikiro maviri: wokutanga kuchinjwa volumetric aibuda achiumbwa munyika vortex precession kakawanda ari ipapo rinochinjwa kuva Frequency chiratidzo.

Flowmeter inobva oscillating jets

Nomunyika kamwene, gasi kana mvura rukova uri diffuser ine chikamu muchinjikwa ari muchimiro rectangle. Mune zvimwe zviitiko, kuerera zvinozoita rikazvisundira pane imwe nguva kuti masvingo siyana pamusoro diffuser. Electrifying pfuma kutandara ndege mudziyo kunoderedza nevamwe rokumusoro munzvimbo yokunzvenga mutopota, sezvamakaropafadzwa nechepasi payo inoramba zvakafanana uye sangano pave dzakatakura rukova kusvikira pasi diffuser. Pashure nenyere mu nomukombero mamiriro motokari kuchinja, anouya oscillating ndege.

Jet sandwiched ari pasi diffuser chinhu converters hydraulic kudzokera kubatana mutopota anoenda kuburikidza outputting chete aoma. In sitiroko yokumusoro gwara dzinounzwa mugove ndege uye apo achipfuura wokutanga kamwene, zviri hwakatamisirwa chinzvimbo murukova kubva rechipiri kamwene. Zvino tasvika chikamu uye zvinoenda rokumusoro gwara sitiroko, oscillation muitiro kunoitika pashure umklapp pasi, apo pane mawa kuchinja nevamwe vose chekubuda rwemberi.

The inverter iri mhando zvikuru kodzera. Nokuda pakuomerera nayo achiumbwa uye oscillation ronda riri kupa zvakananga kukanganisa mwero wacho oscillation maitikiro.

Yainyanya kushandiswa Yokogawa vortex flowmeters awana pombi aine dhayamita chiduku vaifanira kubva 90 mm. Mune zvimwe zviitiko, izvi mhando mudziyo unoshandiswa somutsivi womutariri nokuda kukwana converters.

Nhasi, kunaka chokubuda mukugadzira achigara Evolving uye kune zvitsva features, pasinei nokuti vakadaro mano vane kumbonyanya refu kushandiswa. Developers vanotsvaka hubudirire design mhinduro kusika kwesayenzi kusarudza ari kushanda kwakarongeka.