Positive displacement flowmeter

Positive displacement flowmeter-PD Mamita

Kana zvasvika pakuyera huwandu hwehuwandu hwekuyerera kwehuwandu hwezvinhu zvemvura, hapana chinoshanda zviri nani kupfuura kuyerera kwemamita anoshandiswa mumhando dzakasiyana siyana dzine chekuita neminda yekushanda.Positive displacement flowmeter iripo mumusika inoshandiswa kune akati wandei-ekupedzisira maapplication, uye imwe neimwe yadzo ine mabhenefiti akasiyana, hunhu hwekuita, maitiro, maitiro, uye zvakatemwa.

Positive displacement Kuyerera kwemamita ndiwo marudzi emaflowmeters akakodzera kuyerwa kwe viscous fluid inoyerera.Aya anoonekwawo seakanakira maapplication ayo anoda kushandiswa kweiyo yakapfava mameta system.Kazhinji, yakanaka displacement kuyerera mita ine kamuri kana mhango inorambidza kuyerera.Inotenderera kana kudzoreredza mechanical mudziyo unowanikwa mukati mekamuri kuti igadzire yakagadzika-vhoriyamu discrete mapasuru kubva kumvura inoyerera.Kuburikidza nePD mita mayunitsi, zvinwiwa zvinopatsanurwa kuita zvakaverengerwa increments izvo zvinobva zvawedzera kuverengerwa nerejista yekubatanidza.Sezvo yega yega yakayerwa increment inomiririra vhoriyamu yakasarudzika, aya marudzi emamita anoshandiswa zvakanyanya kune otomatiki batching uye accounting zvinangwa.

Chii chinonzi Positive Displacement Flow Meter?

Kutsanangura mudziyo, chii chinonzi Positive Displacement flow meter (PD)?- Meta yemechani inonyatso shandiswa kune isina-kuora uye yakachena masvikiro.Kuve uchikwanisa kuyera huwandu hwakakura hwemvura dzinosanganisira kunyangwe iwo ane maviscosities akakwira, iyi yekuyerera mita inouya nezvakawanda zvakanakira.

Iyo inozivikanwawo semahosi ekuyeresa kuyerera, ichi chinoyeresa mwero wekuyerera chinoyera mwero wekuyerera kwechinhu chinoyerera nekuchirega kuti chifambe nemuhurongwa zvishoma nezvishoma.Kana ichishandiswa kumaindasitiri ekushandisa, PD inoyerera mamita anozivikanwa nekugona kwawo kuyera akawanda akaomarara uye akakosha emvura kuyerera kwemazinga nekurongeka uye nyore.

Positive Displacement (PD) Kuyerera kwemamita mavhoriyamu ekuyeresa kuyerera zviridzwa zvinoyera kuyerera nekupfuura vhoriyamu chaiyo yemvura nebhindauko rega rega.PD kuyerera kwemamita ari chaiwo zviridzwa izvo zvemukati zvinofamba zvikamu zvakavharwa zvine hydraulically mu tandem nehuwandu hwemvura inofamba nepakati yekuyerera mita.

Positive Displacement Meter imhando yemita yekuyerera inoda mvura kuti ibvise zvikamu mumita kuitira kuyerwa kwekuyerera.Positive displacement (PD) inoyerera mita inoyera volumetric kuyerera kwemvura inofamba kana gasi nekukamura midhiya kuita yakagadziriswa, mavhoriyamu ane metered (inogumira increments kana mavhoriyamu emvura).

Iyo Positive Displacement Flow Meter Inoshanda sei?

Enzaniso yakakosha ingave yakabata bhaketi pazasi pepombi, kurizadza kusvika padanho rakaiswa, wobva waritsiva nerimwe bhaketi uye nekuverengera chiyero chinozadzwa mabhaketi (kana huwandu hwemabhaketi e "totalized" kuyerera) .Nekumanikidzwa kwakakodzera uye muripo wekushisa, huwandu hwekuyerera kwehuwandu hunogona kunyatsotemwa.

Koeo M akatevedzana metres akanaka ekutamisa mita.Iwo akagadzirirwa kuyerwa kwemvura mune zvese kuchengetedza-kutamisa uye process-control application.Dzinogona kuiswa mupombi kana kuti gravity flow systems.Nekuda kwemaitiro avo akareruka, ari nyore kuchengetedza, uye ari nyore kuchinjika kune akasiyana masisitimu.

Imba yemamita (1) yakagadzirwa iine cylindrical bores (2).Matatu rotor, inovharira rotor (3) uye maviri ekufambisa rotor (4, 5), inoshandura hukama hwakabatana mukati mezvibhorani.Iwo matatu rotor anotsigirwa nekutakura mahwendefa (6, 7).Migumo ye rotors inobuda kuburikidza nekutakura mahwendefa.Iyo inovhara rotor gear (8) inoiswa pamagumo ekuvhara rotor.Iyo yekutamisa rotor magiya (9, 10) anoiswa pamigumo yeanotamisa rotors.Aya magiya anogadzira hukama hwenguva yakatarwa pakati pemarotor matatu.

Sezvo mvura inofamba nepakati peimba yemamita, gungano re rotor rinotendeuka.Iyo mvura inoputsika kuita zvikamu zvakafanana nekutendeuka rotors.Fluid displacement inoitika panguva imwe chete.Sezvo mvura ichipinda, chimwe chikamu chemvura chiri kukamurwa uye kuyerwa.Panguva imwecheteyo, mvura iri pamberi payo inodzingwa kunze kwemamita uye mumutsara wekubuda.Sezvo huwandu hwemabhori huchizivikanwa, uye huwandu hwakafanana hwemvura hunopfuura nemamita panguva imwe neimwe shanduko yekuvhara rotor, iyo chaiyo vhoriyamu yemvura yakapfuura nepamamita inogona kutsanangurwa nehupamhi hwepamusoro.

Uku kutenderera kwechokwadi kwekufamba kunofambiswa kuburikidza nekutakura gland, giya rechiso, dhiraivha yedhiraivha shaft, uye inogadzirisa kune registack uye counter.Chokwadi chinotenderera chinobuda chinoreva huchokwadi hunoenderana, sezvo chiratidzo cherejista chiri muchibvumirano chaicho nevhoriyamu chaiyo yekubuda panguva chero ipi zvayo.Pane chero chinzvimbo mudenderedzwa, iyo mita yemuviri, inovharira rotor, uye ingangoita imwe yemarotor anotamisa anoumba inoenderera capillary chisimbiso pakati peisina metered kumusoro kwechigadzirwa uye metered kuzasi kwerwizi.

Nekuti chigadzirwa chakaparadzaniswa necapillary chisimbiso, hapana simbi-kune-simbi yekubata inodiwa mukati meiyo metering element.Izvi zvinoreva kuti hapana kupfeka, uye kusapfeka kunoreva kuti hapana kuwedzera kwekutsvedza, zvinoreva kuti hapana kuparara kwechokwadi.

Pakati pese metering element, nzvimbo dzekubatanidza dzinenge dzakati sandara kana zviso zvecylindrical uye zvikamu zvakagadzirwa nemazvo.Izvi zviri nyore machining mashandiro, pamwe nenyaya yekuti hapana kutenderedza kana kudzoreredza kufamba mukati memudziyo, inobvumira kuvharika kwakanyanya uye kunoenderana kushivirira mukati meKoeo yakanaka yekutamisa mita.

Chigadzirwa chinoyerera nemamita chinopa simba rine simba riri pamakona akarurama kune zviso zvemarotor ekutamisa.Iyo mita yakagadzirirwa kuitira kuti rotor shafts igare iri mundege yakatwasuka.Zvinhu zviviri izvi zvinounza pasina axial thrust.Naizvozvo, Koeo positive displacement metres haidi zvekusundira washer kana thrust bearings, uye ma rotor anototsvaga pakati perukova pakati pemahwendefa maviri anotakura-kubvisa kusakara pakati pemigumo yemarotor uye mahwendefa anotakura.Zvekare, hapana mhedzisiro yekupfeka zvinoreva kuti hapana kuneta kwesimbi uye hapana kukweshana.

Koeo positive displacement metres inogadzirwa nezvinhu zvakasiyana siyana kuti zvienderane nemhando dzakasiyana dzezvigadzirwa.Nekuda kwedhizaini yavo yekusapfeka, macapillary seals, uye yakasarudzika rotary metering, Koeo yakanaka yekutamisa mita inopa kusaenzana kwakaringana, hupenyu hurefu hwekushanda, uye kuvimbika kwakasiyana.

 

Zvimiro uye zvakanakira.

• Mamita ekutamisa zvakanaka anogona kuyera kuyerera kwemukati-kati, kuyerera kwakadzikira, uye zvinwiwa zvingangoita chero viscosity.Iyo PD mita inofamba pakarepo kana paine kufamba kwemvura, uye pakarepo inomira kana mafambiro emvura amira.

• Kuyerwa kwemamita ekutamisa zvakanaka hakukanganiswe neiyo viscosity yemvura, density kana mhirizhonga mupombi.Zvese zvinwiwa zvisingamisikike zvichatora vhoriyamu imwe chete uye hapana chikonzero chekugadzirisa kubuda kwemamita kutsiva zvinhu izvi.

• Kururama kwepamusoro

• Kuderera kwepasi kunodonha

• Kugadziriswa kwekugadzirisa kusina nhanho

• Pfeka dhizaini inoripira vane

• Mechanical kuverenga kana zvemagetsi

• Inokodzera zvakasiyana siyana zvezvinwiwa

• Positive displacement type flowmeters kazhinji inopa huchokwadi hwepamusoro kureva nezve ± 0.1% yekuyerera chaiko dzimwe nguva.Iko kurongeka kwemamita kweiyo unit kunowedzera nani nekuwedzera kweiyo process fluid viscosity.

• Mamita ePD anopawo kudzokorora kwakanakisa kunogona kusvika pa0.05% yekuverenga.

• PD mamita anogona kushanda pasina kushandisa magetsi.Uyezve, ivo havadi kuti yakatwasuka kumusoro uye yakadzika pombi inomhanya kuti vaise.

• PD mamita aripo muhukuru kusvika 12 mukati.

• Reshiyo yavo yeturndown inogona kusvika pa100:1.

• Sezvo maPD metres aine madiki madiki madiki pakati pezvikamu zvadzo-zvakagadzirwa-muchina, kukurumidza kupfeka kunokanganisa kurongeka kwavo.Naizvozvo, aya marudzi emamita haawanzo kurudzirwa kuyerwa kwe slurries kana abrasive fluid.

• Positive displacement flowmeters anowanzo shandiswa semamita emvura emumba.

• Kurongeka kweiyo positive displacement flowmeters kunoenderana nekuvimbika kwecapillary seal inoshandiswa kupatsanura mvura inopfuura kuita discrete pasuru.Kuti uwane chokwadi chinodiwa uye kuve nechokwadi chekuti PD mita inoshanda nemazvo, filtration system inodiwa.Iyi sefa system inofanirwa kukwanisa zvakakwana kubvisa hukuru hukuru zvidimbu pamwe nemabhuru egasi kubva mukuyerera kwemvura.

• Positive displacement flowmeters inoshanda pairi nyore chaizvo kushanda musimboti.Positive displacement flowmeters inoumbwa nemarota akakwana ekuyera kuyerera kwemvura.Yakagadziriswa mavhoriyamu emvura anofambiswa pakati pemarotor.Kutenderera kwemarotor aya kunoenderana zvakananga nehuwandu hwemvura iri kufamba.

• A central electronic pulse transmitter inosanganisirwa mune yakajairika PD mita dhizaini iyo inoverenga nhamba yekutenderera kwe rotor.Nhamba yakaverengwa iyi inobva yashandiswa kuverenga vhoriyamu yemvura uye mwero wekuyerera.

• Rotor yemhando yakanaka yekufambisa inoyerera inogona kugadzirwa nenzira dzakawanda.

• Positive displacement flowmeters inogona kushandiswa kune dzinenge dzese zvinwiwa zvisingagadzike semafuta ekudziya, mafuta ekuzora, polymer additives, mhuka nemafuta emiriwo, inki yekudhinda, freon, nezvimwe.