Ubwino wa pampu yamaginito yotentha kwambiri ndi yotani? ?

  Pampu yotentha kwambiri ya maginito ndi mtundu wosalumikizana ndi torque kudzera pa maginito oyendetsa (magnetic coupling), kotero kuti chisindikizo chokhazikika chimalowa m'malo mwa chisindikizo champhamvu, kuti pampuyo ikhale yopanda kutayikira. Popeza shaft yapampu ndi mkati mwa maginito rotor zimasindikizidwa kwathunthu ndi thupi la mpope ndi manja odzipatula, vuto lotayikira limathetsedwa, ndipo chiwopsezo chachitetezo chazinthu zoyaka, zophulika, zapoizoni komanso zovulaza zomwe zimatulutsa pampu mu chosindikizira ndi mankhwala. mafakitale atha.

Mapangidwe a pampu

Pampu yotentha kwambiri ya maginito imakhala ndi magawo atatu: pampu yodzipangira yokha, maginito drive ndi mota. Gawo lofunikira, maginito oyendetsa, amakhala ndi rotor yakunja ya maginito, mkati mwa maginito rotor ndi manja opanda maginito kudzipatula.

1. Maginito Okhazikika:
Maginito osatha opangidwa ndi zipangizo ali ndi kutentha kwakukulu kogwiritsira ntchito (-45-400 ° C), mphamvu yokakamiza kwambiri, anisotropy yabwino kumalo a maginito, ndipo palibe demagnetization yomwe idzachitika pamene mtengo womwewo uli pafupi wina ndi mzake. Ndi mtundu wa gwero labwino kwambiri la maginito.

2. Kudzipatula:
Chombo chachitsulo chikagwiritsidwa ntchito, spacer imakhala mu sinusoidal alternating magnetic field, ndipo eddy current imapangitsidwa pagawo loyang'ana kutsogolo kwa mzere wa mphamvu ya maginito ndikusandulika kutentha.

3. Kuwongolera kuzizira kwamafuta otsekemera
Pampu yotentha kwambiri ya maginito ikugwira ntchito, madzi pang'ono amayenera kugwiritsidwa ntchito kusuntha ndi kuziziritsa malo a mphete pakati pa chozungulira chamkati cha maginito ndi manja odzipatula ndi ma friction awiri a bere yotsetsereka. Kuthamanga kwa choziziritsa kuzizira nthawi zambiri kumakhala 2% -3% ya kuchuluka kwa mapangidwe a mpope, ndipo malo omwe ali ndi mphete pakati pa rotor yamkati ya maginito ndi manja odzipatula amatulutsa kutentha kwakukulu chifukwa cha mafunde a eddy. Pamene kuzirala kwamadzimadzi kozizira sikukwanira kapena dzenje lothamangitsira silili losalala kapena lotsekedwa, kutentha kwa sing'anga kumakhala kokwera kuposa kutentha kwa maginito okhazikika, kotero kuti mkati mwa maginito rotor pang'onopang'ono kutaya maginito ake ndi maginito kuyendetsa. kulephera. Pamene sing'anga ndi madzi kapena madzi opangidwa ndi madzi, kutentha kumakwera m'dera la annulus kumatha kusungidwa pa 3-5 ° C; pamene sing'anga ndi hydrocarbon kapena mafuta, kutentha kukwera m'dera la annulus kumatha kusungidwa pa 5-8 ° C.

4. Kubala bwino
Zipangizo za maginito mpope kutsetsereka mayendedwe monga impregnated graphite, wodzazidwa PTFE, zoumba uinjiniya, etc. Pakuti zadothi zaumisiri ndi zabwino kutentha kukana, kukana dzimbiri, ndi kukaniza mikangano, mayendedwe otsetsereka a mapampu maginito zambiri zopangidwa zadothi zaumisiri.
Popeza ma ceramics a uinjiniya ndi olimba kwambiri ndipo amakhala ndi kagawo kakang'ono kakukulitsa, chilolezocho sichiyenera kukhala chaching'ono kwambiri kuti chipewe ngozi zokhala ndi shaft. kupanga mayendedwe molingana ndi media osiyanasiyana ndi zikhalidwe ntchito.