1. Installation Stress
Panguva yekumisikidzwa kwemamita ekuyerera kwemamita, kana iyo sensor flange yemamita ekuyerera isina kuenderana nepakati axis yepombi (kureva kuti, sensor flange haina kufanana nepipeline flange) kana kupisa kwepombi kushanduka, kushushikana. inogadzirwa nepombi inokonzeresa kudzvanywa, torque uye simba rekudhonza kuita pachubhu yekuyeresa yemamita ekuyerera; izvo zvinokonzeresa asymmetry kana deformation yekuongorora probe, zvichitungamira ku zero Drift uye kuyerwa kukanganisa.
Solution:
(1) Nyatsotevedzera zvakatemwa paunenge uchiisa inoyerera mita.
(2) Mushure mekunge mita yekuyerera yaiswa, dana kumusoro "zero gadziriso menyu" uye rekodha fekitori zero preset kukosha. Mushure mekugadzirisa zero kwapera, cherechedza kukosha kwazero panguva ino. Kana musiyano uripo pakati pehuviri huviri hwakakura (huviri hunokosha hunofanirwa kunge huri muKurongeka kwehukuru), zvinoreva kuti kushushikana kwekuiswa kwakakura uye kunofanirwa kudzoserwa.
2. Environmental Vibration uye Electromagnetic Interference
Kana iyo misa yekuyerera mita iri kushanda zvakajairwa, iyo yekuyeresa chubhu iri muchimiro chekuzunguzika uye inonzwa zvakanyanya kune yekunze vibration. Kana paine mamwe masosi ekudengenyeka papuratifomu imwechete inotsigira kana nzvimbo dziri pedyo, iyo vibration frequency yevibration sosi inozokanganisa imwe neimwe nekushanda kweiyo vibration frequency yehuwandu hwekuyerera mita yekuyera chubhu, zvichikonzera kuzununguka kusingaite uye zero kudonha kwemamita ekuyerera, kukonzera zvikanganiso zvekuyera. Ichaita kuti kuyerera kwemamita kusashanda; panguva imwe chete, nokuti iyo sensor inodedera iyo yekuyera chubhu kuburikidza neiyo excitation coil, kana paine yakakura magineti kupindira padhuze nemamita ekuyerera, ichavawo nemhedzisiro yakakura pamhedzisiro yekuyera.
Solution: Nekuenderera mberi kwekuvandudzwa kwehuwandu hwekuyerera kwemamita yekugadzira tekinoroji uye tekinoroji, semuenzaniso, kushandiswa kweDSP yedhijitari chiratidzo chekugadzira tekinoroji uye MVD tekinoroji yeMicro Motion, zvichienzaniswa neyekare midziyo yeanalogi, kumberi kumagumo Kugadziriswa kwedhijitari kunoderedza zvakanyanya ruzha rwechiratidzo. uye inogonesa chiratidzo chekuyera. Iyo yekuyerera mita ine mabasa ari pamusoro inofanirwa kutariswa seyakaganhurwa sezvinobvira pakusarudza chiridzwa. Zvisinei, izvi hazvibvisi kupindira. Naizvozvo, iyo misa yekuyerera mita inofanirwa kugadzirwa uye kuisirwa kure neakakura matransformer, mota uye zvimwe zvigadziri zvinogadzira magineti mahombe ekudzivirira kukanganiswa neawo excitation magineti.
Kana kuvhiringidzwa kwekudengenyeka kusingagone kudzivirirwa, matanho ekuzviparadzanisa akadai seanochinjika pombi yekubatanidza nechubhu yevibration uye vibration yekuzvimiririra yekutsigira furemu inogamuchirwa kupatsanura iyo yekuyerera mita kubva kune iyo vibration yekukanganisa sosi.
3. Pesvedzero Yekuyera Medium Pressure
Kana iyo yekumanikidza yekushanda ichisiyana zvakanyanya kubva kune yekusimbisa kudzvanywa, shanduko yekuyeresa yepakati pressure inokanganisa kusimba kwechubhu yekuyeresa uye chiyero chebuden effect, inoparadza symmetry yechubhu yekuyeresa, uye kukonzera kuyerera kwe sensor uye density kuyerwa kwekunzwa. kushandura, izvo zvisingagoni kufuratirwa kuchiyero chekururama.
Solution: Tinogona kubvisa kana kuderedza mhedzisiro iyi nekuita dzvinyiriro muripo uye kudzvanywa zero kugadziridzwa pahuwandu hwekuyerera mita. Pane nzira mbiri dzekugadzirisa pressure compensation:
(1) Kana iyo yekumanikidza yekushanda iri inozivikanwa yakagadziriswa kukosha, unogona kuisa kukosha kwekunze kwekumanikidza pane misa inoyerera mita inotapura kutsiva.
(2) Kana iyo yekumanikidza yekushanda ikachinja zvakanyanya, iyo mass flow meter transmitter inogona kugadzirwa kuti ivhote yekunze yekuyeresa dhizaini, uye iyo chaiyo-nguva yesimba yekumanikidza kukosha inogona kuwanikwa kuburikidza nekunze kwekuyeresa kuyera mudziyo wekuripa. Ongorora: Paunenge uchigadzirisa muripo wekumanikidza, kuyerera kwekutarisa kumanikidza kunofanirwa kupihwa.
4. Maviri-chikamu Kuyerera Dambudziko
Nekuti ikozvino kuyerera kwemamita yekugadzira tekinoroji inogona kuyera nenzira kwayo kuyerera kwechikamu chimwe chete, mune chaiyo yekuyera maitiro, kana mamiriro ekushanda achichinja, iyo yemvura yepakati inoputika uye inogadzira maviri-chikamu kuyerera, iyo inokanganisa yakajairika kuyerwa.
Kugadzirisa: Kuvandudza mamiriro ekushanda kwemvura yemvura, kuitira kuti mabhubhu ari muhutano hwemvura aparadzirwe zvakaenzana sezvinobvira kuti asangane nezvinodiwa zvemamita ekuyerera kweyero yakajairika. Iwo chaiwo mhinduro ndeaya anotevera:
(1) Kuisa pombi. Iyo vortex yakakonzerwa negokora mupombi inokonzeresa kuti mabhuru emhepo apinde mu sensor chubhu zvisina kuenzana, zvichikonzera kukanganisa pakuyera.
(2) Wedzera mwero wekuyerera. Chinangwa chekuwedzera chiyero chekuyerera ndechekuita kuti mabubbles ari maviri-phase kuyerera apfuure nemuchubhu yekuyeresa nekumhanya kwakafanana kana achipinda muchubhu yekuyeresa, kuitira kuti abvise buoyancy yemabhuru uye mhedzisiro yepasi- viscosity fluids (mabubbles ari low-viscosity fluids haasi nyore kuparadzira uye anowanzo kuungana muhombe huru); Paunenge uchishandisa Micro Motion kuyerera kwemamita, zvinokurudzirwa kuti chiyero chekuyerera hachisi pasi pe1/5 yechiyero chakazara.
(3) Sarudza kuisa mupombi yakatwasuka, ine kuyerera kunokwira. Pakuyerera kwakaderera, mabhubhu achaungana muhafu yepamusoro yechubhu yekuyeresa; iyo buoyancy yemabhuru uye svikiro inoyerera inogona kuburitsa mabubble zviri nyore zvakaenzana mushure mekunge pombi yakamira yaiswa.
(4) Shandisa rectifier kubatsira kugovera mabhubhu mumvura, uye mhedzisiro yacho iri nani kana yakashandiswa negeta.
5. Kufurira kweKuyera Medium Density uye Viscosity
Iko kushanduka kwehuwandu hwepakati yakayerwa ichakanganisa zvakananga kuyerera kweyero system, kuitira kuti kuenzana kwekuyerera kwe sensor kunoshanduka, zvichikonzera zero offset; uye viscosity yepakati inoshandura maitiro ekunyorovesa ehurongwa, zvichitungamira kune zero offset.
Solution: Edza kushandisa imwe chete kana akati wandei svikiro ine musiyano mudiki mukuwanda.
6. Kuyera Tube Corrosion
Mukushandiswa kwemamita ekuyerera kwemamita, nekuda kwemigumisiro yehuturu hwemvura, kushushikana kwekunze, kupinda kwezvinhu zvekune dzimwe nyika nezvimwewo, zvichikonzera zvakananga kumwe kukuvadza kwechubhu yekuyera, iyo inokanganisa kushanda kwechubhu yekuyera uye inotungamirira kuchiyero chisina kururama.
Mhinduro: Inokurudzirwa kuisa sefa inoenderana pamberi peyekuyerera mita kudzivirira kunze kwenyika kupinda; kuderedza kuisa kunetseka panguva yekuisa.
