Mene ne gazawar manne a kan ultrasonic flowmeter?

Matsalolin na yanzu na ultrasonic flowmeter sun fi dacewa cewa yanayin zafin jiki na jikin da aka auna yana iyakance ta yanayin juriya na ultrasonic makamashi musayar aluminum da kayan haɗin kai tsakanin mai watsawa da bututun, da kuma bayanan asali na saurin watsa sauti. na jikin da aka auna ya kwarara a yanayin zafi bai cika ba.A halin yanzu, kasar Sin za a iya amfani da ita kawai don auna ruwan da ke ƙasa da 200 ℃.Bugu da ƙari, layin ma'aunin ma'aunin motsi na ultrasonic ya fi rikitarwa fiye da na ma'auni na gaba ɗaya.Wannan shi ne saboda yawan kwararar ruwa a cikin ma'auni na masana'antu yawanci yakan kasance 'yan mita a cikin dakika guda, kuma saurin yaduwar sautin sauti a cikin ruwa ya kai kusan 1500m / s, da kuma canjin saurin sautin da canjin ya kawo. a cikin adadin ma'aunin da aka auna ma'auni kuma yana da oda 10-3 na girma.Idan ana buƙatar daidaiton ma'aunin ma'aunin ya zama 1%, daidaiton saurin sauti yana buƙatar zama 10-5 ~ 10-6 umarni na girma, don haka dole ne a sami cikakkiyar layin ma'auni don cimma, wanda kuma shine. na'urar motsi na ultrasonic zai iya zama aikace-aikace mai amfani kawai a ƙarƙashin saurin haɓaka fasahar da'ira mai hadewa.
(1) Matsakaicin ma'aunin zafin jiki na ultrasonic flowmeter bai yi girma ba, kuma gabaɗaya yana iya auna ruwa tare da zafin jiki ƙasa da 200 ° C.
(2) Rashin ƙarfin hana tsangwama.Yana da sauƙi a damu da hayaniyar ultrasonic gauraye da kumfa, ƙwanƙwasa, famfo da sauran tushen sauti kuma yana shafar daidaiton auna.
(3) Ana buƙatar sashin bututu madaidaiciya don 20D na farko da 5D na ƙarshe.In ba haka ba, tarwatsawa ba ta da kyau kuma daidaitattun ma'auni yana da ƙasa.
(4) Rashin tabbas na shigarwa zai kawo babban kuskure ga ma'aunin kwarara.
(5) Ƙimar bututun ma'aunin zai yi tasiri sosai ga daidaiton ma'auni, wanda zai haifar da kurakuran ma'auni, har ma da nunin kwarara a cikin lokuta masu tsanani.
(6) AMINCI da daidaito matakin ba high (gaba daya game da 1.5 ~ 2.5), da kuma repeatability ne matalauta.
(7) Shortan rayuwar sabis (gabaɗaya daidaito za a iya ba da garantin shekara ɗaya kawai).
(8) Ultrasonic flowmeter shine ta hanyar auna saurin ruwa don sanin ƙimar ƙarar, ruwa ya kamata ya auna yawan kwararar ruwa, ana samun ma'aunin kayan aiki na kwararar taro ta hanyar ninka yawan kwararar ƙarar ta hanyar ƙima ta atomatik, lokacin da yawan zafin jiki ya canza, an canza yawan ruwa mai yawa, ƙimar da aka saita ta wucin gadi, ba zai iya tabbatar da daidaiton kwararar taro ba.Sai kawai lokacin da aka auna saurin ruwan a lokaci guda, ana auna yawan ruwan, kuma ana iya samun ainihin yawan kwararar ruwa ta hanyar lissafi.
(9) Daidaiton ma'aunin Doppler bai yi girma ba.Hanyar Doppler ta dace da ruwan biphase ba tare da babban abun ciki mai yawa ba, kamar najasar da ba a kula da ita ba, ruwan fitar da masana'anta, ruwa mai datti;Yawancin lokaci ba ya dace da ruwa mai tsabta sosai.