1. Chiyambi chaMa Ultrasonic Heat Meters
Zipangizo zoyezera kutentha za Ultrasonic ndi zipangizo zamakono zomwe zimagwiritsidwa ntchito poyezera kutentha.muyesomomwe kutentha kumagwiritsidwira ntchito m'makina otenthetsera kapena ozizira. Amagwira ntchito potengera mfundo yogwiritsira ntchito mafunde a ultrasound. Mamita awa amayesa liwiro la madzi mkati mwa chitoliro potulutsa mafunde amawu mkati mwa khoma la chitoliro. Mwa kuphatikiza chidziwitso cha kuchuluka kwa madzi ndi kusiyana kwa kutentha kwa madzi pamalo awiri (nthawi zambiri malo olowera ndi otulukira a dongosolo), mphamvu ya kutentha yomwe imasamutsidwa imatha kuwerengedwa molondola. Poyerekeza ndi mamita achikhalidwe, ma ultrasound heat meter amapereka kulondola kwakukulu, kuthekera kowunikira deta nthawi yeniyeni, ndipo sakhudzidwa kwambiri ndi zinthu monga zinthu zapaipi ndi zinyalala zamadzimadzi nthawi zambiri.
2. Mfundo Yogwirira Ntchito ndi Zoletsa Zokhudzana ndi Kutentha
Mfundo yoyezera ya ultrasound yokha ndi yokhazikika pa kutentha kwakukulu. Komabe, pankhani yoyezera zakumwa zotentha kwambiri, zinthu zingapo zokhudzana ndi zigawo za mita zimagwiritsidwa ntchito. Masensa ndi ma transducer mu ma ultrasound heat meter ndi zigawo zofunika kwambiri pakutumiza ndi kulandira chizindikiro. M'malo otentha kwambiri, zinthu za zigawozi zitha kukhudzidwa. Mwachitsanzo, zipangizo za piezoelectric zomwe zimagwiritsidwa ntchito kwambiri mu ma transducer zimatha kusintha mawonekedwe awo akuthupi kutentha kwambiri, zomwe zingakhudze kulondola kwa kupanga ndi kuzindikira mafunde a ultrasound.
Kuphatikiza apo, zomangira ndi zinthu zotetezera kutentha zomwe zili mu mita ziyenera kukhalabe zokhazikika kuti zisatayike ndikuwonetsetsa kuti zikugwira ntchito bwino. Kutentha kwambiri kungayambitse kuti zinthuzi ziwonongeke, kufutukuka, kapena kufupika, zomwe zingayambitse mavuto monga kuchepa kwa magwiridwe antchito otseka kapena kusokoneza ma signali amagetsi ndi ma ultrasound.
3. Kuchuluka kwa Kutentha mu Mitundu Yosiyanasiyana ya Ultrasonic Heat Meter
3.1 Standard - Ma Ultrasonic Heat Meters a Range
Ma ultrasound heat meter ambiri amapangidwa kuti ayeze zakumwa zomwe zimakhala ndi kutentha kuyambira - 30 °C mpaka 90 °C. Mwachitsanzo, mitundu ina yomwe imagwiritsidwa ntchito m'makina otenthetsera ndi ozizira m'nyumba zogona kapena zamalonda imagwera m'gululi. Ma meter awa ndi oyenera kugwiritsidwa ntchito pomwe madzi, omwe nthawi zambiri amakhala ndi madzi, sapitirira 90 °C. Mu makina otenthetsera apakati, kutentha kwa madzi otentha nthawi zambiri kumakhala pafupifupi 60 - 80 °C, komwe kuli mkati mwa muyeso wa mamita okhazikika awa. Masensa ndi zipangizo zomwe zili m'mamita awa zimasankhidwa kuti zitsimikizire kuti kutentha kumagwira ntchito bwino mkati mwa nthawi yotenthetsera iyi, kupereka muyeso wolondola wa kutentha kuti mugwiritse ntchito ndalama zolipirira komanso kuwongolera makina.
3.2 Ma Ultrasonic Heater Meters Otentha Kwambiri
Kuti akwaniritse zosowa za mafakitale komwe kuli madzi otentha kwambiri, ma ultrasound heat meters opangidwa ndi kutentha kwakukulu apangidwa. Ma ultrasound heat meters amenewa amatha kuthana ndi kutentha kwakukulu kwambiri. Ma ultrasound heat meters ena otentha kwambiri amatha kuyeza madzi mpaka 160 °C. Mu njira zina zamafakitale, monga m'makampani opanga mankhwala komwe madzi otentha kapena madzi ena otenthetsera kutentha amagwiritsidwa ntchito kutentha kwambiri potenthetsera ma reactor kapena zida zina, ma ultrasound heat meters amenewa otentha kwambiri amatha kuyeza molondola kusamutsa kutentha.
Palinso mitundu ina yapadera yomwe imatha kuyeza zakumwa pa kutentha mpaka 200 °C. Mwachitsanzo, m'machitidwe ena oyendera madzi otentha kwambiri m'mafakitale, monga momwe zimakhalira popanga toluylendiamine (TDA), komwe kusakaniza kwa hydration kumazungulira pafupifupi 150 °C pansi pa kupsinjika kwa pafupifupi 30 bar. Muzochitika zotere, ma flow meter osalowerera omwe ali ndi ma transducer otentha kwambiri (otsimikizika mpaka 200 °C) amagwiritsidwa ntchito. Ma transducer awa adapangidwa ndi zipangizo zapadera zopirira kutentha kwambiri pazinthu zawo, kuphatikiza zinthu za piezoelectric ndi zida zogona, kuti zitsimikizire kuti zikugwira ntchito bwino komanso molondola pa kutentha kwakukulu kumeneku.
4. Zinthu Zomwe Zimakhudza Kutentha Kwambiri Koyezedwa
4.1 Kusankha Zinthu
Zipangizo zomwe zimagwiritsidwa ntchito popangachoyezera kutentha cha ultrasonicMa s amagwira ntchito yofunika kwambiri podziwa kutentha kwawo koyezeka kwambiri. Kwa ma transducer, zinthu za piezoelectric zosagwirizana ndi kutentha kwambiri monga mitundu ina ya lead zirconate titanate (PZT) - zopangidwa ndi zinthu zosinthidwa nthawi zambiri zimagwiritsidwa ntchito m'mafano otentha kwambiri. Zipangizozi zimatha kusunga mawonekedwe awo a piezoelectric, omwe ndi ofunikira popanga ndi kuzindikira mafunde a ultrasound, pa kutentha kwakukulu.
Zipangizo zomangira ndi zomangira ziyeneranso kusankhidwa mosamala. Mwachitsanzo, zipangizo monga mapulasitiki osatentha kwambiri (monga PEEK - polyetheretherketone) kapena ma alloy apadera amagwiritsidwa ntchito kuti nyumbayo ipirire kutentha kwambiri popanda kuwononga kapena kutaya mphamvu zake zamakanika. Zisindikizo zopangidwa ndi fluorocarbon elastomers kapena zipangizo zina zonga rabara zosatentha kwambiri zimagwiritsidwa ntchito kuonetsetsa kuti zitsekedwe bwino ndikuletsa kutuluka kapena kulowa kwa zinthu zakunja zomwe zingakhudze magwiridwe antchito a mita.
4.2 Kapangidwe ka Kuziziritsa ndi Kuteteza Magesi
Mu ntchito zina zotentha kwambiri, njira zina zoziziritsira ndi zotetezera kutentha zimaphatikizidwa muchoyezera kutentha cha ultrasonickapangidwe kake. Makina oziziritsira, monga njira zoziziritsira mpweya mokakamizidwa kapena njira zoziziritsira zamadzimadzi, angagwiritsidwe ntchito kuchotsa kutentha komwe kumayamwa ndi zigawo za mita kuchokera ku madzi otentha kwambiri. Izi zimathandiza kuti kutentha kwamkati mwa mita kukhale koyenera kuti zigawo zake zamagetsi ndi zamagetsi zigwire ntchito bwino.
Kuteteza kutentha n'kofunika kwambiri. Zipangizo zotetezera kutentha zapamwamba zimagwiritsidwa ntchito kupatula zinthu zodziwika bwino za mita kuchokera kumalo otentha kwambiri. Izi sizimangothandiza kusunga bata la zinthuzo komanso zimachepetsa chiopsezo cha kusokonezeka kwa kutentha ndi zizindikiro za ultrasound.
5. Mapeto
Kawirikawiri, kutentha kwakukulu kwa madzi komwe kungayesedwe pogwiritsa ntchito ma ultrasound heat meters kumasiyana malinga ndi chitsanzo ndi kapangidwe kake. Ma ultrasound heat meters okhazikika nthawi zambiri amatha kuyeza madzi pakati pa - 30 °C mpaka 90 °C, zomwe ndizokwanira kugwiritsa ntchito kutentha ndi kuziziritsa nthawi zambiri. Komabe, pa ntchito zamafakitale ndi ntchito zina zokhudzana ndi madzi otentha kwambiri, ma ultrasound heat meters otentha kwambiri amapezeka. Izi zimathayezani zakumwampaka 160 °C kapena ngakhale 200 °C nthawi zina. Kupanga kwa mita yoyezera kutentha kwambiri kumeneku kumatheka pogwiritsa ntchito zipangizo zapamwamba zopirira kutentha kwambiri komanso mapangidwe apamwamba oziziritsa ndi oteteza kutentha. Posankha mita yoyezera kutentha ya ultrasonic yogwiritsira ntchito inayake, ndikofunikira kuganizira za kutentha kwa madzi omwe akuyezedwa kuti muwonetsetse kuti kutentha kolondola komanso kodalirika kumayesedwa.
Nthawi yotumizira: Juni-17-2025