Kwinkqubo yokuveliswa kwemizi-mveliso kunye nokuveliswa, amanye amatanki alinganisiweyo alula ukukhazimlisa, 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 ukwenzela ukuveliswa kweeyunithi zomphunga, iitanki zokugcina umgangatho wolwelo ukwenzela i-desulfurization kunye nezityalo ze-denitrification.Bobabini abazalwana abangatshatanga kunye nabaphindwe kabini banezicelo ezininzi, kodwa bahluke kumahluko phakathi kokuvula nokutywinwa.Iitanki ezivulekileyo ze-flange enye zingavalwa iitanki, ngelixa iiflange ezimbini zineetanki ezivaliweyo kubasebenzisi.
Umgaqo weflange enye yoxinzelelo lokuhambisa umlinganiselo wolwelo
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, umdluliseli kufuneka enze imfuduko elungileyo.
Umfanekiso 1-1 Umzekelo wokulinganisa ulwelo kwisikhongozeli esivulekileyo
Vumela u-X abe ngumgama othe nkqo phakathi kowona mgangatho wolwelo uphantsi kunye nowona uphakamileyo oza kulinganiswa, X=3175mm.
U-Y ngumgama othe nkqo ukusuka kwizibuko loxinzelelo lwesidluliseli ukuya kwelona nqanaba lolwelo lisezantsi, y=635mm.ρ kukuxinana kolwelo, ρ=1.
h yeyona ntloko yoxinzelelo oluphezulu oluveliswe ngulwelo ikholamu X, kwi KPa.
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 lixabiso loxinzelelo lokulinganisa icala eliphezulu loxinzelelo;
D sisixa semfuduko enguziro.
Umgaqo-nkqubo 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 elomileyo.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 ekhokelayo yoxinzelelo 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 wokukhokelela woxinzelelo oluzaliswe lulwelo ukuya kumgca wesiseko womthumeli, 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.
I-e yeyona ntloko yoxinzelelo oluphezulu oluveliswe ngumhlathi ovavanyiweyo we-Y, kwi-KPa.
s yintloko yoxinzelelo eveliswa yintsika epakishiweyo engamanzi, kwi-KPa.
Uluhlu lokulinganisa 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, ngokwenene silinganisa umphakamo womgangatho wolwelo: inqanaba lolwelo ukuphakama H=(P1-PX)/(ρ*g)+D/(ρ*g);
Qaphela: I-PX kukulinganisa ixabiso loxinzelelo lwecala eliphantsi loxinzelelo;
I-P1 lixabiso loxinzelelo lokulinganisa icala eliphezulu loxinzelelo;
D sisixa semfuduko enguziro.
UFakelo lokuQaphela
Imiba yofakelo lweflange enye
1. Xa i-flange eyodwa yokwahlula inwebu isidluliseli kwiitanki ezivulekileyo isetyenziselwa umlinganiselo wenqanaba 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 lojongano lwecala loxinzelelo oluphantsi.Ichaza uxinzelelo lwereferensi yetanki.Ukongezelela, hlala ukhulula i-valve ye-drain kwicala le-L ukukhupha i-condensate kwigumbi le-L, ngaphandle koko kuya kubangela iimpazamo kumlinganiselo wezinga le-liquid.
3. Umthumeli unokudibaniswa 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 lohlobo lweflange isidlulisi somgangatho wolwelo
1) Xa ulinganisa umgangatho wolwelo wetanki yolwelo, elona nqanaba lolwelo lisezantsi (inqaku elinguziro) kufuneka libekwe kumgama we-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 yomahluko wobushushu bendalo esingqongileyo, iityhubhu ze-capillary kwicala loxinzelelo oluphezulu zinokudityaniswa kunye kwaye zilungiswe ukuthintela impembelelo yomoya kunye nokungcangcazela (iityhubhu ze-capillary zenxalenye ende kakhulu kufuneka ihlanganiswe kunye. kwaye zilungisiwe).
4) Ngexesha lokusebenza kofakelo, zama ukungasebenzisi uxinzelelo lwethontsi yolwelo lokutywina kwi-diaphragm seal kangangoko kunokwenzeka.
5) Umzimba wothumelo kufuneka ufakwe kumgama ongaphezulu kwe-600mm ngezantsi kwecala loxinzelelo oluphezulu lwecala elikude le-flange diaphragm lokufakela itywina, ukuze uxinzelelo lwethontsi yolwelo 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 yokulinganiselwa kweemeko zofakelo.Okanye xa umzimba womthumeli unokufakwa kuphela ngaphezulu kwenxalenye yofakelo lwesitywina seflange ngenxa yezizathu ezinenjongo, indawo yofakelo lwalo kufuneka ihlangabezane nale fomyula ilandelayo yokubala.
1) h: ukuphakama phakathi kweflange ekude yofakelo lwe-diaphragm inxalenye yofakelo kunye nomzimba wokuhambisa (mm);
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