Kwinkqubo yokuveliswa kwemizi-mveliso kunye nokuveliswa, amanye amatanki alinganisiweyo alula ukucwebezela, abonakaliswe kakhulu, adle ngokugqithisileyo, kwaye kulula ukuqiniswa. Iitransmitha zoxinzelelo olulodwa kunye neflange ephindwe kabini zihlala zisetyenziswa kwezi zihlandlo. , Ezinje: iitanki, iinqaba, iiketile, kunye neitanki kwizityalo zokuphekela; iitanki zokugcina ulwelo ukuveliswa iiyunithi evaporator, iitanki inqanaba ulwelo yokugcina desulfurization kunye nezityalo denitrification. Bobabini abazalwana abangatshatanga kunye nabaphindwe kabini banezicelo ezininzi, kodwa bahluke kumahluko phakathi kokuvula nokutywinwa. Iitanki ezivulekileyo ze-flange enye zinokuvalwa iitanki, ngelixa iiflange ezimbini zineetanki ezivaliweyo kubasebenzisi.
Umgaqo-siseko weflange enye yoxinzelelo lokuhambisa ukulinganisa inqanaba lolwelo
Isidluliseli soxinzelelo lweflange enye senza uguqulo lwenqanaba ngokulinganisa ukuxinana kwetanki evulekileyo, umlinganiselo wenqanaba lezikhongozeli ezivulekileyo.
Xa ulinganisa inqanaba lolwelo lwesikhongozeli esivulekileyo, isidluliseli sifakwe kufutshane nomzantsi wesikhongozeli ukulinganisa uxinzelelo oluhambelana nomphakamo wenqanaba lolwelo ngaphezulu kwayo. Njengoko kubonisiwe kuMfanekiso 1-1.
Uxinzelelo lwenqanaba lolwelo lwesitya ludityaniswe kwicala loxinzelelo oluphezulu lwe-transmitter, kwaye icala eliphantsi loxinzelelo livuleleke emoyeni.
Ukuba elona nqanaba lisezantsi lolwelo lwenqanaba lotshintsho lwenqanaba lolwelo olulinganisiweyo lungaphezulu kwendawo yofakelo ye-transmitter, umthumeli kufuneka enze imfuduko elungileyo.
Umfanekiso 1-1 Umzekelo wokulinganisa ulwelo kwisikhongozeli esivulekileyo
Vumela u-X abe ngumgama othe nkqo phakathi kwelona nqanaba lolwelo lisezantsi kunye nelona liphezulu lilinganiswe, X=3175mm.
U-Y ngumgama othe nkqo ukusuka kwizibuko loxinzelelo lwesidluliseli ukuya kwelona nqanaba lolwelo lisezantsi, y=635mm. ρ bubuninzi bolwelo, ρ=1.
h yeyona ntloko yoxinzelelo oluphezulu oluveliswe ngulwelo ikholamu X, kwi KPa.
u-e yintloko yoxinzelelo eveliswa ngulwelo ikholamu Y, kwi-KPa.
1mH2O=9.80665Pa (efana ngezantsi)
Uluhlu lokulinganisa lusuka ku-e ukuya ku-e+h ngoko: h=X·ρ=3175×1=3175mmH2O=31.14KPa
e=y·ρ=635×1= 635mmH2O= 6.23KPa
Oko kukuthi, uluhlu lokulinganisa lwe-transmitter yi-6.23KPa～37.37KPa
Ngokufutshane, ngokwenene silinganisa ubude bomgangatho wolwelo:
Ubude benqanaba lolwelo H=(P1-P0)/(ρ*g)+D/(ρ*g);
Qaphela: i-P0 luxinzelelo lwangoku lwe-atmospheric;
I-P1 yixabiso loxinzelelo lokulinganisa icala eliphezulu loxinzelelo;
D sisixa semfuduko enguziro.
Umgaqo weflange yoxinzelelo oluphindwe kabini lokuhambisa ukulinganisa inqanaba lolwelo
I-double-flange pressure transmitter yenza uguqulo lwenqanaba ngokulinganisa ukuxinana kwetanki etywiniweyo: Uqhagamshelo lwempembelelo eyomileyo.
Ukuba igesi engaphezulu kwendawo yolwelo ayidibanisi, umbhobho wokudibanisa kwicala eliphantsi loxinzelelo lomthumeli uhlala womile. Le meko ibizwa ngokuba ludibaniso lokulinga olomileyo. Indlela yokumisela uluhlu lokulinganisa lwe-transmitter iyafana nenqanaba lolwelo kwisitya esivulekileyo. (Jonga umfanekiso 1-2).
Ukuba irhasi kulwelo iyajiya, ulwelo luya kuqokelelana ngokuthe ngcembe kwityhubhu ekhokela uxinzelelo kwicala eliphantsi loxinzelelo, nto leyo eya kubangela iimpazamo zomlinganiso. Ukuze uphelise le mpazamo, gcwalisa ngaphambili i-tube ekhokelayo yoxinzelelo oluphantsi yoxinzelelo lwecala lokuhambisa ngolwelo oluthile. Le meko ibizwa ngokuba yi-wet pressure guide connection.
Kule meko ingentla, kukho intloko yoxinzelelo kwicala eliphantsi loxinzelelo lwe-transmitter, ngoko ke ukufuduka okungalunganga kufuneka kuqhutywe (jonga umfanekiso 1-2)
Umfanekiso 1-2 Umzekelo womlinganiselo wolwelo kwisikhongozeli esivaliweyo
Vumela u-X abe ngumgama othe nkqo phakathi kwelona nqanaba lolwelo lisezantsi kunye nelona liphezulu lilinganiswe, X=2450mm. U-Y ngumgama othe nkqo ukusuka kwizibuko loxinzelelo lwe-transmitter ukuya kwelona nqanaba lolwelo lisezantsi, Y=635mm.
I-Z ngumgama osuka phezulu kumbhobho wokukhokela uxinzelelo oluzaliswe lulwelo ukuya kumgca wesiseko wothumelo, Z=3800mm,
ρ1 bubuninzi bolwelo, ρ1=1.
ρ2 luxinaniso lolwelo lokuzalisa lombhobho wecala loxinzelelo oluphantsi, ρ1=1.
h yintloko yoxinzelelo oluphezulu oluveliswe ngumqolo ovavanyiweyo wolwelo X, kwi-KPa.
e yintloko yoxinzelelo oluphezulu oluveliswe yikholomu engamanzi evavanyiweyo Y, kwi-KPa.
s yintloko yoxinzelelo eveliswa yintsika epakishiweyo engamanzi, kwi-KPa.
Uluhlu lomlinganiselo lusuka ku (es) ukuya ku (h+es), ngoko
h=X·ρ1=2540×1 =2540mmH2O =24.9KPa
e=Y·ρ1=635×1=635mmH2O =6.23KPa
s=Z·ρ2=3800×1=3800mmH2O=37.27KPa
Ngoko: es=6.23-37.27=-31.04KPa
h+e－s=24.91+6.23－37.27=－6.13KPa
Qaphela: Ngokufutshane, ngenene silinganisa umphakamo womgangatho wolwelo: ukuphakama kwenqanaba lolwelo H=(P1-PX)/(ρ*g)+D/(ρ*g);
Qaphela: I-PX kukulinganisa ixabiso loxinzelelo lwecala eliphantsi loxinzelelo;
I-P1 yixabiso loxinzelelo lokulinganisa icala eliphezulu loxinzelelo;
D sisixa semfuduko enguziro.
UFakelo lokuQaphela
Imiba yofakelo lweflange enye
1. Xa i-flange yodwa i-membrane yokudlulisa i-membrane yamatanki avulekileyo isetyenziselwa ukulinganisa inqanaba lolwelo lwamatanki olwelo oluvulekileyo, icala le-L le-interface yecala eliphantsi kufuneka livuleleke emoyeni.
2. Kwitanki yolwelo etywiniweyo, ityhubhu ekhokelayo yoxinzelelo yokukhokela uxinzelelo kwitanki yolwelo kufuneka ibe ngumbhobho kwicala le-L le-interface ephantsi yoxinzelelo. Ichaza uxinzelelo lwereferensi yetanki. Ukongezelela, hlala ukhulula i-valve ye-drain kwicala le-L ukuze ukhuphe i-condensate kwigumbi le-L, ngaphandle koko kuya kubangela iimpazamo kumlinganiselo wezinga le-liquid.
3. I-transmitter inokudibaniswa nokufakwa kwe-flange kwicala loxinzelelo oluphezulu njengoko kuboniswe kuMzobo 1-3. I-flange kwicala letanki ngokuqhelekileyo i-flange ehambayo, elungiswe ngelo xesha kwaye inokudityaniswa ngokucofa okukodwa, ekulungele ukufakwa kwisayithi.
Umzobo 1-3 Umzekelo wofakelo lwe-flange yohlobo lwe-liquid level transmitter
1) Xa ulinganisa umgangatho wolwelo wetanki yolwelo, elona nqanaba lolwelo lisezantsi (inqaku elinguziro) kufuneka libekwe kumgama wama-50mm okanye ngaphezulu ukusuka kumbindi we-high-pressure side diaphragm seal. Umfanekiso 1-4:
Umzobo 1-4 Umzekelo wofakelo lwetanki yolwelo
2) Faka i-flange diaphragm kwindawo ephezulu (H) kunye nephantsi (L) yoxinzelelo lwetanki njengoko kuboniswe kwi-transmitter kunye neleyibhile yenzwa.
3) Ukuze kuncitshiswe impembelelo yokuhluka kobushushu bendalo, iityhubhu ze-capillary kwicala loxinzelelo oluphezulu zinokudityaniswa kunye kwaye zilungiswe ukuthintela impembelelo yomoya kunye nokungcangcazela (iityhubhu ze-capillary zecandelo elide kakhulu kufuneka zihlanganiswe kunye kwaye zilungiswe).
4) Ngexesha lokusebenza kofakelo, zama ukungasebenzisi uxinzelelo lwethontsi yolwelo lokutywina kwi-diaphragm seal kangangoko kunokwenzeka.
5) Umzimba wothumelo kufuneka ufakwe kumgama ongaphezulu kwe-600mm ngaphantsi kwecala loxinzelelo oluphezulu lwecala elikude le-flange ye-diaphragm yofakelo lwetywina lokufakwa kwetywina, ukuze uxinzelelo lwethontsi lolwelo lwe-capillary seal longezwe kumzimba wothumelo kangangoko kunokwenzeka.
6) Kakade ke, ukuba ayikwazi ukufakwa i-600mm okanye ngaphezulu ngaphantsi kwendawo yokufakela inxalenye ye-flange diaphragm seal ngenxa yokunciphisa iimeko zokufakela. Okanye xa umzimba womthumeli unokufakwa kuphela ngaphezulu kwenxalenye yofakelo lwesitywina seflange ngenxa yezizathu ezinenjongo, indawo yokufakela kwayo kufuneka ihlangabezane nale fomyula ilandelayo yokubala.
2
① Xa i-h≤0, umzimba wothumelo kufuneka ufakwe ngaphezulu kwe-h (mm) ngaphantsi kwenxalenye yofakelo lwe-flange diaphragm yofakelo.
②Xa i-h>0, umzimba wothumelo kufuneka ufakwe ngaphantsi kwe-h (mm) ngaphezu kwenxalenye yofakelo lwe-flange diaphragm yofakelo.
2) P: Uxinzelelo lwangaphakathi lwetanki yolwelo (Pa abs);
3) P0: Umda ophantsi woxinzelelo olusetyenziswa ngumzimba wothutho;
4) Ubushushu be-Ambient: -10～50℃.
Ixesha lokuposa: Dec-15-2021