Ukuhlelwa kweegeyiji zoxinzelelo kwiiheater yombane yokufudumeza, Ukukhethwa kwemilinganiselo yoxinzelelo kunye nokufakwa kunye nokugcinwa kwemihla ngemihla yokulinganisa uxinzelelo.
1 Ukuhlelwa kweegeji zoxinzelelo
Iigeyiji zoxinzelelo zinokwahlulwa ngokweendidi ezine ngokwemigaqo yazo yoguqulo:
Uhlobo lokuqala lulwelo lwekholamu ye-manometer:
Ngokomgaqo we-hydrostatics, uxinzelelo olulinganisiweyo lubonakaliswa ngokuphakama kwekholomu yolwelo. Ifom yesakhiwo nayo yahlukile, ngoko inokwahlulwa ibe yi-U-shaped gauge pressure gauge, i-tube eyodwa yokulinganisa uxinzelelo kunye nokunye. Olu hlobo lwe-manometer lunesakhiwo esilula kwaye sikulungele kakhulu ukusebenzisa, kodwa ukuchaneka kwayo kuya kuchaphazeleka kakhulu yizinto ezifana nesenzo se-capillary tubes, ubuninzi kunye ne-parallax. Ngenxa yokuba uluhlu lokulinganisa luncinci kakhulu, lusetyenziselwa ukulinganisa uxinzelelo oluphantsi, umahluko woxinzelelo okanye idigri yevacuum.
Uhlobo lwesibini yi-elastic manometer:
Iguqulelwa kuxinzelelo olulinganisiweyo ngokufuduswa kwe-deformation ye-elastic element, njenge-manometer ye-tube yasentwasahlobo kunye ne-manometer ye-mode kunye ne-spring tube manometer.
Uhlobo lwesithathu yigeyiji yoxinzelelo lombane:
Sisixhobo esiguqula uxinzelelo olulinganisiweyo lube ngumyinge wombane womatshini kunye neenxalenye zombane (ezifana nombane, umsinga, amaza, njl.njl.) kumlinganiselo, njengezithuthi zoxinzelelo ezahlukeneyo kunye nezivamvo zoxinzelelo.
Uhlobo lwesine yigeyiji yoxinzelelo lwepiston:
Ilinganiswa ngokusebenzisa umgaqo woxinzelelo lwe-hydraulic press liquid transfer transfer, kunye nokuthelekisa ubunzima bekhowudi yesilicon elungeleleneyo eyongezwe kwipiston kunye noxinzelelo olulinganisiweyo. Inomlinganiselo ophezulu wokuchaneka, omncinci njenge-0.05 yamathumbu ~ 0? Impazamo ye-2%. Kodwa ixabiso libiza kakhulu, isakhiwo sinzima ngakumbi. Ukujonga ezinye iindidi zexesha loxinzelelo ziyafumaneka njengezixhobo zokulinganisa uxinzelelo oluqhelekileyo.
Inkqubo yeoli eshushu isetyenziswa kwigeyiji yoxinzelelo ngokubanzi, inento ebuthathaka kwityhubhu ye-bourdon, itafile ngaphakathi kwentshukumo yendlela yokuguqula, xa uxinzelelo lwenziwa, ityhubhu yeBourdon iya kuba yi-elastic deformation, ukuhamba kwendlela ukuya. guqula i-elastic deformation ibe yintshukumo ejikelezayo, kwaye isalathisi esidityaniswe nomatshini siya kuthotywa ukubonisa uxinzelelo.
Ke ngoko, igeyiji yoxinzelelo esetyenziswa kwinkqubo yesithando somlilo se-oyile sisesibini i-elastic pressure gauge.
2 Ukukhethwa kwegeyiji yoxinzelelo
Xa uxinzelelo lwebhoyili lungaphantsi kwe-2.5 mi, ukuchaneka kwe-gauge ye-pressure gauge ayikho ngaphantsi kwe-2.5 inqanaba: uxinzelelo olusebenzayo lwebhoyili lungaphezulu kwe-2. I-SMPa, ukuchaneka kwe-gauge yoxinzelelo ayikho ngaphantsi kwe-1.5 level. ; Kwiibhoyila ezinoxinzelelo olusebenzayo olungaphezu kwe-14MPa, ukuchaneka komlinganiselo woxinzelelo kufuneka kube kwinqanaba 1. Uxinzelelo olusebenzayo loyilo lwenkqubo yeoli eshushu ngu-0.7MPa, ngoko ke ukuchaneka komlinganiselo woxinzelelo osetyenzisiweyo akufanele kucinezeleke i-2.5 grade 2 Uluhlu lwe-gauge yoxinzelelo kufuneka lube yi-1.5 ukuya ku-3 amaxesha oxinzelelo oluphezulu lwebhoyili, sithatha ixabiso eliphakathi ngamaxesha angama-2. Ngoko ke kwigeyiji yoxinzelelo inani lingama-700.
I-gauge ye-pressure gauge igxininiswe kwi-boiler yezindlu, ukwenzela ukuba akukho lula ukujonga kuphela, kodwa kulula ukwenza imisebenzi yokugungxula rhoqo kunye nokutshintsha indawo yokulinganisa uxinzelelo.
3. Ukufakwa kunye nokugcinwa kwemihla ngemihla yokulinganisa uxinzelelo lwesithando somlilo se-thermal
(l) Ubushushu be-ambient yegeyiji yoxinzelelo yi-40 ukuya kwi-70 ° C, kwaye ukufuma okuhambelanayo akukho ngaphezu kwe-80%. Ukuba i-gauge yoxinzelelo iyaphambuka kwiqondo lokushisa eliqhelekileyo lokusetyenziswa, impazamo eyongezelelweyo yokushisa kufuneka ifakwe.
(2) Isilinganisi soxinzelelo kufuneka sime ngokuthe nkqo, kwaye sizame ukugcina umgangatho ofanayo kunye nendawo yokulinganisa, njengokuba umehluko uphezulu kakhulu kwimpazamo eyongezelelweyo ebangelwa yintsika yolwelo, umlinganiselo wegesi awunakuqwalaselwa. Xa ufaka, vimba ukuvulwa kobungqina bokudubula ngasemva kwecala ukuze ungachaphazeli ukusebenza kobungqina bokuqhuma.
(3) Uluhlu lokulinganisa ukusetyenziswa okuqhelekileyo komlinganiselo woxinzelelo: akukho ngaphezu kwe-3/4 yomda ophezulu wokulinganisa phantsi koxinzelelo lwe-static, kwaye ungabi ngaphezu kwe-2/3 yomda ophezulu wokulinganisa phantsi kokuguquguquka. Kwiimeko ezimbini zoxinzelelo ezingentla apha, umlinganiselo omncinci we-gauge enkulu yoxinzelelo akufanele ube ngaphantsi kwe-1/3 yomda ophantsi, kwaye inxalenye ye-vacuum isetyenziswe xa kulinganisa i-vacuum.
(4) Xa usebenzisa, ukuba isalathisi somlinganiselo woxinzelelo asiphumeleli okanye amalungu angaphakathi akhululekile kwaye awakwazi ukusebenza ngokuqhelekileyo, kufuneka alungiswe, okanye aqhagamshelane nomenzi ukuze agcinwe.
(5) Isixhobo kufuneka sigweme ukungcangcazela kunye nokungqubana ukuphepha umonakalo.
Ukuba unayo nayiphi na imibuzo malunga neziko le-oyile yombane, ncedaQhagamshelana nathi.
Ixesha lokuposa: Jun-27-2024
