Mwachitsanzo, ngati mukufuna kutsegula DN100, valavu gulugufe PN10, makokedwe mtengo ndi 35NM, ndi chogwiririra kutalika ndi 20cm (0.2m), ndiye mphamvu yofunikira ndi 170N, ofanana ndi 17kg.
Vavu yagulugufe ndi valavu yomwe imatha kutsegulidwa ndi kutsekedwa potembenuza mbale ya valavu 1/4 kutembenuka, ndipo chiwerengero cha kutembenuza chogwiriracho chimakhalanso 1/4 kutembenuka.Ndiye nthawi yofunikira kuti mutsegule kapena kutseka imatsimikiziridwa ndi torque.Kukula kwa torque, valavu imatseguka ndikutseka pang'onopang'ono.komanso mbali inayi.
2. valavu yagulugufe yoyendetsedwa ndi nyongolotsi:
zokhala ndi mavavu agulugufe okhala ndi DN≥50.Lingaliro lomwe limakhudza kuchuluka kwa kutembenuka ndi liwiro la valavu ya butterfly ya worm gear imatchedwa "speed ratio".
Chiŵerengero cha liwiro chimatanthawuza chiŵerengero chapakati pa kuzungulira kwa shaft ya actuator (handwheel) ndi kuzungulira kwa mbale ya gulugufe.Mwachitsanzo, chiŵerengero cha liwiro la DN100 turbine butterfly valve ndi 24: 1, kutanthauza kuti gudumu lamanja pa bokosi la turbine limayenda maulendo 24 ndipo mbale yagulugufe imazungulira bwalo limodzi (360 °).Komabe, kutsegulira kwakukulu kwa mbale ya butterfly ndi 90 °, yomwe ndi 1/4 bwalo.Choncho, handwheel pa turbine bokosi ayenera kutembenuzidwira 6 zina.Mwa kuyankhula kwina, 24: 1 ikutanthauza kuti muyenera kungotembenuza gudumu la gulugufe 6 kuti mumalize kutsegula kapena kutseka kwa valve ya butterfly.
| DN | 50-150 | 200-250 | 300-350 | 400-450 |
| Chepetsani Mtengo | 24:1 | 30:1 | 50:1 | 80:1 |
"Wolimba mtima" ndi kanema wotchuka kwambiri komanso wokhudza mtima mu 2023. Pali tsatanetsatane woti ozimitsa moto adalowa pakati pa moto ndipo pamanja adatembenuza 8,000 kutembenuka kuti atseke valve.Anthu omwe sadziwa zambiri anganene kuti "izi ndizokokomeza kwambiri."M'malo mwake, wozimitsa moto adauzira nkhani yakuti "The bravest" m'nkhaniyi "anatembenuza valve 80,000, maola 6 asanatseke.
Musadabwe ndi nambala imeneyo, mufilimuyi ndi valavu ya gate, koma lero tikukamba za butterfly valve.Chiwerengero cha zosintha zofunika kutseka valavu gulugufe wa DN yemweyo ndithudi sikuyenera kukhala ambiri.
Mwachidule, chiwerengero cha kutsegula ndi kutseka kutembenuka ndi nthawi yochitapo kanthu ya valavu ya butterfly zimadalira zinthu zambiri, monga mtundu wa actuator, kuthamanga kwapakati ndi kuthamanga kwapakati, ndi zina zotero, ndipo ziyenera kusankhidwa ndi kusinthidwa malinga ndi momwe zilili. .
Tisanakambirane kuchuluka kwa matembenuzidwe ofunikira kuti titseke valavu yagulugufe, choyamba timvetsetse chida chofunikira potsegula valavu yagulugufe: chowongolera.Ma actuators osiyanasiyana ali ndi manambala osiyanasiyana otembenukira kutseka valavu yagulugufe, ndipo nthawi yofunikira ndiyosiyananso.
Njira yowerengera nthawi ya gulugufe kutsegula ndi kutseka Nthawi yotsegula ndi kutseka ya valavu ya gulugufe imatanthawuza nthawi yomwe valavu ya gulugufe imadutsa kuchokera kutseguka mpaka kutseka kwathunthu kapena kuchoka kutseka mpaka kutseguka kwathunthu.Nthawi yotsegula ndi yotseka ya valavu ya butterfly ikugwirizana ndi kuthamanga kwa actuator, kuthamanga kwa madzi ndi zina.
t=(90/ω)*60,
Pakati pawo, t ndi nthawi yotsegula ndi yotseka, 90 ndi ngodya yozungulira ya gulugufe, ndipo ω ndi liwiro la angular la valve ya butterfly.
1. Gwirani valavu ya butterfly:
Nthawi zambiri amakhala ndi mavavu agulugufe ndi DN ≤ 200 (kukula kwake kwakukulu kungakhale DN 300).Pakadali pano, tiyenera kutchula lingaliro lotchedwa "torque".
Torque imatanthawuza kuchuluka kwa mphamvu yofunikira kuti mutsegule kapena kutseka valve.Torque iyi imakhudzidwa ndi zinthu zosiyanasiyana, kuphatikiza kukula kwa valavu yagulugufe, kupanikizika ndi mawonekedwe a media, komanso kukangana mkati mwa msonkhano wa valve.Ma torque nthawi zambiri amawonetsedwa mu Newton metres (Nm).
| Chitsanzo | Kupanikizika kwa Gulugufe Valve | ||
| DN | PN6 | PN10 | PN16 |
| 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. Vavu yagulugufe yoyendetsedwa ndi magetsi:
Zogwirizana ndi DN50-DN3000Mtundu woyenerera mavavu agulugufe ndi chipangizo chamagetsi chozungulira kotala (makona ozungulira madigiri 360).Chofunika kwambiri ndi torque, ndipo unit ndi Nm
Nthawi yotseka ya valavu yagulugufe yamagetsi imatha kusinthika, malingana ndi mphamvu, katundu, liwiro, ndi zina zotero za actuator, ndipo nthawi zambiri siziposa masekondi a 30.
Ndiye pamatenga nthawi zingati kuti mutseke valavu ya gulugufe?Nthawi yotsegula ndi yotseka ya valavu ya butterfly imadalira kuthamanga kwa injini.Linanena bungwe liwiro laZFA valvepazida zamagetsi wamba ndi 12/18/24/30/36/42/48/60 (R/min).
Mwachitsanzo, ngati mutu wamagetsi uli ndi liwiro lozungulira 18, ndi nthawi yotseka ya masekondi 20, ndiye kuti kutembenuka kumatseka ndi 6.
| TYPE | Chithunzi cha SPEC | Kutulutsa Torque N.m | Linanena bungwe Liwiro lozungulira r/mphindi | Nthawi Yogwira Ntchito | Max Diamter of Stem | Wilo lamanja kutembenuka | |
| ZFA-QT1 | QT06 | 60 | 0.86 | 17.5 | 22 | 8.5 | |
| QT09 | 90 | ||||||
| ZFA-QT2 | QT15 | 150 | 0.73/1.5 | 20/10 | 22 | 10.5 | |
| Mtengo wa QT20 | 200 | 32 | |||||
| ZFA-QT3 | Mtengo wa QT30 | 300 | 0.57/1.2 | 26/13 | 32 | 12.8 | |
| Mtengo wa QT40 | 400 | ||||||
| Mtengo wa QT50 | 500 | ||||||
| Mtengo wa QT60 | 600 | 14.5 | |||||
| ZFA-QT4 | Mtengo wa QT80 | 800 | 0.57/1.2 | 26/13 | 32 | ||
| Mtengo wa QT100 | 1000 |
Chikumbutso chofunda: Kusintha kwamagetsi kwa valve kumafuna torque kuti igwirepo.Ngati torqueyo ndi yaying'ono, sangathe kutsegula kapena kutseka, choncho ndi bwino kusankha yaikulu kusiyana ndi yaying'ono.