Chii chinonzi mechanical seals?

Michina yemagetsi ine shaft inotenderera, senge pombi nemacompressor, inowanzozivikanwa se "michina inotenderera." Mechanical seals imhando yekurongedza yakaiswa pane simba rekutumira shaft yemuchina unotenderera. Iwo anoshandiswa mukushandisa kwakasiyana-siyana kubva kumotokari, ngarava, maroketi uye maindasitiri ekudyara michina, kune zvekugara.

Mechanical seals anoitirwa kudzivirira mvura (mvura kana mafuta) inoshandiswa nemushini kuti isadere ichienda kunharaunda yekunze (mumhepo kana muviri wemvura). Iri basa remakina zvisimbiso rinobatsira mukudzivirira kusvibiswa kwezvakatipoteredza, kuchengetedza simba kuburikidza nekuvandudzwa kwekushanda kwemuchina, uye kuchengetedza kwemuchina.

Inoratidzwa pasi apa inoonekwa sechikamu chemuchina unotenderera unoda kuiswa kwechisimbiso chemuchina. Muchina uyu une mudziyo muhombe uye shaft inotenderera pakati pemudziyo (semuenzaniso, musanganisi). Mufananidzo unoratidza mhedzisiro yemakesi ane uye asina mechanical chisimbiso.

Mhosva dzine uye dzisina mechanical seal

Pasina chisimbiso

Mvura inodonha.

Ne gland packing (stuffing)

Axis inopfeka.

Inoda kudonha (kuzora) kudzivirira kusakara.

Ne mechanical chisimbiso

Axis haipfeki.
Hapana kana mavuza.

Kudzora uku pakudonha kwemvura kunonzi "kuisa chisimbiso" muindasitiri yemakina.

Pasina chisimbiso
Kana pasina chisimbiso chemuchina kana kurongedza gland kuchishandiswa, iyo mvura inodonhedza kuburikidza neyakajeka pakati pe shaft nemuviri wemuchina.

Negland packing
Kana chinangwa chiri chekudzivirira kudonha kubva pamushini, zvinobudirira kushandisa chisimbiso chinozivikanwa segland kurongedza pane shaft. Nekudaro, gland rinotakura ronda rakasimba rakatenderedza shaft rinotadzisa kufamba kweshaft, zvichikonzera kupera kwe shaft nekudaro zvinoda mafuta ekuzora panguva yekushandiswa.

Ne mechanical chisimbiso
Mhete dzakapatsanurwa dzakaiswa pashaft uye pamushini imba yekubvumidza kushoma kubuda kwemvura inoshandiswa nemushini pasina kukanganisa simba rinotenderera reshaft.
Kuti uve nechokwadi cheizvi, chikamu chimwe nechimwe chinogadzirwa maererano nedhizaini chaiyo. Mechanical zvisimbiso zvinodzivirira kuvuza kunyangwe nezvinhu zvine njodzi zvinonetsa kubata nemuchina kana pasi pemamiriro akaomarara ehudzvanyiriri uye kukurumidza kutenderera.