Umzekelo, ukuba ufuna ukuvula ivalvu yebhabhathane ye-DN100, PN10, ixabiso le-torque yi-35NM, kwaye ubude besibambo yi-20cm (0.2m), ngoko amandla afunekayo yi-170N, alingana ne-17kg.
Ivalvu yebhabhathane yivalvu enokuvulwa kwaye ivalwe ngokujika ipleyiti yevalvu ibe yi-1/4 turn, kwaye inani leenguqu zesiphatho nalo liyi-1/4 turn. Emva koko ixesha elifunekayo lokuvula okanye ukuvala limiselwa yi-torque. Okukhona i-torque inkulu, kokukhona ivalvu ivula kwaye ivala kancinci. ngokuchaseneyo.
2. Ivalvu yebhabhathane eqhutywa yigiya yempethu:
zixhotyiswe kwiivalvu zebhabhathane ezine-DN≥50. Ingcamango echaphazela inani lokujika kunye nesantya sevalvu yebhabhathane yegiya le-worm ibizwa ngokuba yi-"speed ratio".
Umlinganiselo wesantya ubhekisa kumlinganiselo ophakathi kokujikeleza kwe-actuator output shaft (ivili lesandla) kunye nokujikeleza kweplate yevalvu yebhabhathane. Umzekelo, umlinganiselo wesantya wevalvu yebhabhathane ye-DN100 yi-24:1, oko kuthetha ukuba ivili lesandla elikwibhokisi yeturbine lijikeleza amaxesha angama-24 kwaye iplate yebhabhathane ijikeleza isangqa esinye (360°). Nangona kunjalo, i-engile yokuvula ephezulu yeplate yebhabhathane yi-90°, eyi-1/4 yesangqa. Ke ngoko, ivili lesandla elikwibhokisi yeturbine kufuneka lijikwe amaxesha ama-6. Ngamanye amazwi, i-24:1 ithetha ukuba udinga kuphela ukujika ivili lesandla levalvu yebhabhathane yeturbine amaxesha ama-6 ukuze ugqibezele ukuvulwa okanye ukuvalwa kwevalvu yebhabhathane.
| DN | 50-150 | 200-250 | 300-350 | 400-450 |
| Yehlisa Ixabiso | 24:1 | 30:1 | 50:1 | 80:1 |
Ifilimu ethi “The bravest” yeyona idumileyo nechukumisayo ngo-2023. Kukho iinkcukacha zokuba abacimi-mlilo bangene embindini womlilo baza bajika ngesandla amajika angama-8,000 ukuvala ivalvu. Abantu abangazaziyo iinkcukacha banokuthi “oku kuyagqithisa kakhulu.” Enyanisweni, umcimi-mlilo uphefumlele ibali elithi “The bravest” kweli bali “wajika ivalvu amajika angama-80,000, iiyure ezi-6 ngaphambi kokuba ayivale.”
Musa ukothuka yiloo nombolo, kwifilimu yivalvu yesango, kodwa namhlanje sithetha ngevalvu yebhabhathane. Inani leenguqu ezifunekayo ukuvala ivalvu yebhabhathane ye-DN efanayo ngokuqinisekileyo akufuneki libe likhulu kangako.
Ngamafutshane, inani lokujika nokuvula kunye nexesha lokusebenza kwevalvu yebhabhathane lixhomekeke kwizinto ezininzi, ezifana nohlobo lwe-actuator, isantya sokuhamba esiphakathi kunye noxinzelelo, njl.njl., kwaye kufuneka kukhethwe kwaye kulungiswe ngokwemeko yokwenyani.
Ngaphambi kokuba sixoxe ngenani leenguqu ezifunekayo ukuvala ivalvu yebhabhathane, masiqale siqonde isixhobo esifunekayo ukuvula ivalvu yebhabhathane: i-actuator. Ii-actuators ezahlukeneyo zinenani elahlukileyo leenguqu ezisetyenziselwa ukuvala ivalvu yebhabhathane, kwaye nexesha elifunekayo nalo lahlukile.
Ifomula yokubala ixesha lokuvula nokuvala ivalvu yebhabhathane Ixesha lokuvula nokuvala ivalvu yebhabhathane libhekisa kwixesha elithathwayo ukuba ivalvu yebhabhathane igqitywe ukusuka ekuvulekeni ngokupheleleyo ukuya ekuvalekeni ngokupheleleyo okanye ukusuka ekuvalekeni ngokupheleleyo ukuya ekuvulekeni ngokupheleleyo. Ixesha lokuvula nokuvala ivalvu yebhabhathane linxulumene nesantya sokusebenza kwe-actuator, uxinzelelo lolwelo kunye nezinye izinto.
t=(90/ω)*60,
Phakathi kwazo, u-t lixesha lokuvula nelokuvala, u-90 yi-engile yokujikeleza kwevalvu yebhabhathane, kwaye u-ω yi-angular velocity yevalvu yebhabhathane.
1. Ivalvu yebhabhathane esetyenziswa kwisiphatho:
Ngokubanzi zixhotyiswe kwiivalvu zebhabhathane ezine-DN ≤ 200 (ubukhulu obukhulu bungaba yi-DN 300). Okwangoku, kufuneka sikhankanye ingcamango ebizwa ngokuba yi-"torque".
I-torque ibhekisa kubungakanani bamandla afunekayo ukuvula okanye ukuvala ivalvu. Le torque ichaphazeleka zizinto ezahlukeneyo, kubandakanya ubungakanani bevalvu yebhabhathane, uxinzelelo kunye neempawu zemidiya, kunye nokungqubana ngaphakathi kwendibano yevalvu. Amaxabiso e-torque adla ngokubonakaliswa kwiimitha zeNewton (Nm).
| Imodeli | Uxinzelelo lweValve yeButterfly | ||
| DN | I-PN6 | I-PN10 | I-PN16 |
| I-Torque,Nm | |||
| 50 | 8 | 9 | 11 |
| 65 | 13 | 15 | 18 |
| 80 | 20 | 23 | 27 |
| 100 | 32 | 35 | 45 |
| 125 | 51 | 60 | 70 |
| 150 | 82 | 100 | 110 |
| 200 | 140 | 168 | 220 |
| 250 | 230 | 280 | 380 |
| 300 | 320 | 360 | 500 |
3. Ivalvu yebhabhathane eqhutywa ngombane:
Ixhotyiswe nge-DN50-DN3000. Uhlobo olufanelekileyo kwiivalvu zebhabhathane sisixhobo sombane esijika ikota (i-engile ejikelezayo engama-360 degrees). Ipharamitha ebalulekileyo yi-torque, kwaye iyunithi yi-Nm
Ixesha lokuvala ivalvu yebhabhathane yombane liyalungiseka, kuxhomekeke kumandla, umthwalo, isantya, njl.njl. se-actuator, kwaye ngokubanzi ayidluli kwimizuzwana engama-30.
Ngoko ke kuthatha ukujika okungaphi ukuvala ivalvu yebhabhathane? Ixesha lokuvula nelokuvala ivalvu yebhabhathane lixhomekeke kwisantya semoto. Isantya sokuphuma kwevalvuIvalvu ye-ZFAkwizixhobo zombane eziqhelekileyo yi-12/18/24/30/36/42/48/60 (R/min).
Umzekelo, ukuba intloko yombane inesantya sokujikeleza se-18, kunye nexesha lokuvala lemizuzwana engama-20, ngoko ke inani leenguqu ezivalwayo yi-6.
| UHLOBO | I-SPEC | I-Torque yokuphuma N. m | Isiphumo Isantya esijikelezayo r/min | Ixesha Lokusebenza | I-Diamter ephezulu yeStem | Ivili lesandla ukujika | |
| I-ZFA-QT1 | QT06 | 60 | 0.86 | 17.5 | 22 | 8.5 | |
| QT09 | 90 | ||||||
| I-ZFA-QT2 | QT15 | 150 | 0.73/1.5 | 20/10 | 22 | 10.5 | |
| QT20 | 200 | 32 | |||||
| ZFA-QT3 | QT30 | 300 | 0.57/1.2 | 26/13 | 32 | 12.8 | |
| QT40 | 400 | ||||||
| QT50 | 500 | ||||||
| QT60 | 600 | 14.5 | |||||
| I-ZFA-QT4 | QT80 | 800 | 0.57/1.2 | 26/13 | 32 | ||
| QT100 | 1000 |
Isikhumbuzo esifudumeleyo: Iswitshi yombane yevalvu ifuna i-torque ukuze isebenze kuyo. Ukuba i-torque incinci, isenokungakwazi ukuvula okanye ukuvala, ngoko ke kungcono ukhethe enkulu kunencinci.