Overview
Mumakore achangopfuura, hupfumi hweChina hwakaramba huchifambira mberi nekukurumidza, matambudziko emagetsi akawedzera kuita gokora guru rekusimudzira indasitiri, uye nekukurumidza kukwira kwemitengo yemagetsi, kukwikwidza kunotyisa mumusika wepamba, kuchengetedza simba kwave. iva dambudziko guru rakatarisana nekuvandudzwa kwevakawanda maindasitiri, kunyanya mamwe mashandisirwo emagetsi ari maindasitiri akakura senge petroleu-m, makemikari, mishonga, simbi, kugadzira, kuchengetedza kwezvakatipoteredza, munici-pal nemamwe maindasitiri.Zvinoenderana nedata, huwandu hwakazara hweakakwira uye akaderera voltage motors muChina anopfuura 35000MW, mazhinji acho ari fan pombi mitoro, uye mazhinji acho anoshanda mukushandiswa kwesimba kwakanyanya uye kushomeka kwesimba.
General fan, pombi system yakawanda yevharuvhu kuti igadzirise kuyerera kwemvura kana kudzvanywa, baffle mutemo uyu ndeyekuwedzera kurasikirwa kwepombi network, inopedza simba rakawanda pamutengo, saka, zvinokonzeresa kutambisa simba remagetsi.Uye nekuda kwekuti dhizaini, iyo sisitimu inogadzirwa zvinoenderana nehukuru hwakaremerwa, mukushanda chaiko, nguva zhinji sisitimu haigone kumhanya mune yakazara mitoro mamiriro, pane yakakura yakasara, saka kune yakakura simba rekuchengetedza simba. .
Uchishandisa KD600 frequency yekushandura yekumhanyisa kudzora mudziyo, nekushandura kumhanya kwefani, kuitira kuti uchinje fan yemhepo vhoriyamu kuti isangane nezvinodiwa zvekugadzira maitiro, uye kushanda kwesimba kushandiswa ndiko kwakanyanya kuponesa, yakanyanya kuwanda bhenefiti.Naizvozvo, kuchinjika frequency yekumhanyisa regulation ndiyo inoshanda uye yakaringana yekumhanyisa dhizaini, iyo inogona kuona isina nhanho yekumhanyisa mutemo we fan, uye inogona nyore kuumba yakavharwa-loop yekudzora sisitimu kuti uwane inogara ichimanikidza kana kugara kuyerera kuyerera.
Frequency conversion speed regulation simba rekuchengetedza musimboti
Zvinoenderana nemusimboti weiyo fluid mechanics, hukama pakati peshaft simba P uye mhepo vhoriyamu Q uye mhepo kudzvinyirirwa H ye fan inotungamirwa neinduction mota ndeiyi inotevera:
“Q * H Kana kumhanya kwemota kuchichinja kubva kun1 kuenda kun2, hukama pakati peQ, H, P nekumhanya hwakaita seizvi:
Zvinogona kuoneka kuti vhoriyamu yemhepo Q inoenderana nekumhanya n kwemota, uye inodiwa shaft simba P inoenzanirana necube yekumhanya.Nokudaro, kana 80% yehuwandu hwemhepo yakarongerwa ichidiwa, nekugadzirisa kukurumidza kwemotokari kusvika ku80% yehuwandu hwekumhanya, kureva, kugadzirisa kuwanda kusvika ku40.00Hz, simba rinodiwa richangova 51.2% yepakutanga.
Sezvinoratidzwa muMufananidzo (1), simba rekuchengetedza simba mushure mekutora shanduko yekumhanyisa frequency regulation inoongororwa kubva pakushanda curve ye fan.
Kana iyo mhepo inodiwa inoderera kubva kuQ1 kuenda kuQ2, kana nzira yekugadzirisa damper ikagamuchirwa, pombi network kuramba ichawedzera, iyo pombi network charact-eristic curve ichakwira kumusoro, iyo yekushanda mamiriro ehurongwa ichachinja kubva padanho. A kune itsva yekushanda mamiriro poindi B, uye inodiwa shaft simba P2 inopindirana neiyo nzvimbo H2 × Q2.Kana iyo yekumhanyisa control mode ikagamuchirwa, iyo fan yekumhanyisa inodonha kubva kuN1 kuenda kuN2, iyo network maitiro haashanduke, asi iyo fan yehunhu curve inodzika pasi, saka iyo yekushanda kwayo nzvimbo inotamiswa kubva kuA kuenda kuC. inodiwa shaft simba P3 inoenderana nenzvimbo HB × Q2.Tichifunga, iyo shaft simba Delt (P) yakachengetwa inoenderana nenzvimbo ye (H2-HB) × (CB).
Tichifunga nezve kudzikiswa kwekuita basa mushure mekudzikisira uye nekurasikirwa kwekuwedzera kwekukurumidza kudzora mudziyo, kuburikidza neanoshanda manhamba, mafeni anogona kuchengetedza simba nekumhanyisa kudzora kutonga kusvika pa20% ~ 50%.
Variable frequency speed control advantage
- Simba rechikamu chetiweki rinovandudzwa: kana mota yepakutanga ichityairwa zvakananga neiyo frequency yesimba, iyo simba chinhu chinenge 0.85 pamutoro wakazara, uye iyo chaiyo inomhanya simba chinhu yakaderera kupfuura 0.8.Mushure mekutora iyo frequency conver-rsion yekumhanyisa regulation system, iyo simba rechikamu chesimba rinogona kuwedzerwa kusvika kupfuura 0.9, uye iro reactive simba rinogona kuderedzwa zvakanyanya pasina reactive simba remuripo mudziyo, unogona kusangana nezvinodiwa zvegidhi remagetsi. uyezve kuchengetedza mari yekushandisa yemidziyo yekumusoro.
- Zvishandiso zvekushandisa uye mutengo wekugadzirisa wakadzikira: Mushure mekushandiswa kweiyo frequency-conversion gadziriso, nekuda kwekugadziriswa kwemota kumhanya kuti uwane simba rekuchengetedza, kana chiyero chemutoro chadzikira, kumhanya kwemota kunoderedzwawo, iyo huru midziyo uye inoenderana midziyo yekubatsira. zvakadai semabheya anopfeka zvishoma kudarika kare, kutenderera kwekuchengetedza kunogona kuwedzerwa, midziyo yekushandisa hupenyu inowedzerwa;Uye mushure mekushandurwa kwekushandura, kuvhura kwedamper kunogona kusvika 100%, uye kushanda hakusi pasi pekumanikidzwa, izvo zvinogona kuderedza zvakanyanya kuchengetedza kwemvura.Mukushanda kweiyo frequency converter, inongoda kugadzika guruva frequency converter, pasina kumira, kuve nechokwadi kuenderera kwekugadzirwa.Nezvido zvekugadzira, gadzirisa kukurumidza kwe fan, uye wozogadzirisa mhepo yemhepo ye fan, iyo isingasviki chete zvinodiwa zvekugadzirwa kwekugadzira, asiwo inoderedza zvikuru simba rekushanda.Mushure mekutora tekinoroji yekushandura tekinoroji yekumhanyisa kudzora, kupfeka kwemakanika kunoderedzwa, basa rekugadzirisa rinodzikiswa, uye mari yekugadzirisa inoderedzwa.
- Mushure meiyo frequency yekushandura yekumhanyisa yekumhanyisa mudziyo yashandiswa, mota inogona kupfava- kutangwa, uye yazvino haipfuure 1.2 nguva yakayerwa ikozvino yemota kana uchitanga, pasina kukanganisa pane gidhi remagetsi, uye hupenyu hwesevhisi yemota. inowedzerwa.Muchikamu chese chekushanda, mota inogona kuve nechokwadi chekushanda kwakatsetseka, kuderedza kurasikirwa, uye yakajairika tembiricha kukwira.Ruzha uye kutanga ikozvino kwefani kudiki kwazvo kana uchitanga, pasina kana kuzunguzika kusingaite uye ruzha.
- Kuenzaniswa neyepakutanga yekare sisitimu, iyo inverter ine akati wandei ekudzivirira mabasa akadai seyakawandisa, pfupi circuit, overvoltage, undervoltage, kushaikwa kwechikamu, kukwira kwekushisa, nezvimwewo, kuchengetedza zvirinani mota.
- Kushanda kuri nyore uye kushanda kuri nyore.Parameters senge vhoriyamu yemhepo kana kudzvanywa inogona kusetwa kure nekombuta kuti iwane hungwaru kutonga.
- Kugona kujairana nemagetsi grid voltage fluctuations yakasimba, iyo voltage inoshanda renji yakafara, uye sisitimu inogona kushanda zvakajairika kana gidhi remagetsi richichinja pakati -15% uye +10%.
Saiti yekushandisa
Nguva yekutumira: Zvita-04-2023