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Mabheyaringi Ekutsigira VS Mabheyaringi Ekutambisa

 

1. Mabheyaringi Ekutsigira uye Basa Rawo

Mabheyaringi ekutsigirachinhu chakakosha cheturbine yemhepo ine simba. Bearing huru inonziwo radial bearing.

Basa rayo nderekutsigira huremu hwese hwerotor uye simba re centrifugal rinokonzerwa nekusawirirana kwehuwandu hwerotor, uye kuona nzvimbo chaiyo ye radial yerotor mukati me cylinder. Sezvo bearing yega yega ichifanira kutsungirira mitoro yakakwira uye shaft journal ichitenderera nekumhanya kwakanyanya, ma bearing e steam turbine anoshandisa ma bearing emhando ye journal zvichienderana nepfungwa ye fluid lubrication. Firimu remafuta ekuzora rinomanikidzwa rinoumbwa pakati pe shaft journal ne bearing, zvichigadzira fluid friction kuti ive nechokwadi chekuti steam turbine inoshanda zvakachengeteka uye zvakagadzikana.

 

Kune mhando ina huru dzemabheya makuru eturbine yemhepo: mabheya ekutsigira eganda recylindrical, mabheya ekutsigira eganda reelliptical, mabheya ekutsigira eganda retatu-oiri, uye mabheya ekutsigira epad akatsveyama.

 

2. Basa reMabheyaringi Akatambanudzwa

Basa re "thrust bearing" nderekumira ne "axial thrust" ye "rotor" panguva yekushanda uye kuona nekuchengetedza nzvimbo ye "axial" ye "turbine rotor" ne "cylinder".

 

Mabheyaringi eThrust anogona kugadzirwa semayuniti akazvimiririra kana kubatanidzwa nemabheyaringi ekutsigira kuita yuniti imwe chete, inonzi bearing yakasanganiswa (thrust-support combined).

Pachitarisiko, dzinogona kunge dzakaita sezvikamu zvakawanda kana kuti dzakaita sechikamu; pari zvino, mhando inonyanya kushandiswa ndeye bearing yakaita sechikamu. Zvikamu zvayo zvikuru zvinosanganisira mapedhi ekushanda, mapedhi asiri ekushanda, mashim ekugadzirisa, uye mhete dzekuisa.

 

Kumativi ese edhisiki rekuti "thrust disc", mapedhi gumi kusvika gumi nemaviri anoshanda uye asiri kushanda akaiswa. Pedhi rega rega rakaiswa parin'i yekukwidza; mapedhi ekushanda ane tambo yekumberi ye "axial thrust", uye mapedhi asiri kushanda ane tambo yekumashure ye "reverse axial thrust".

 

Mapedhi asingashande ebheya rekufambisa haawanzo kutakura chero chinhu chinosundidzira. Zvisinei, kana mutoro we turbine wadzikira kamwe kamwe, senge pakuramba mutoro, turbine inogona kusangana nekusundidzira kwe axial kune rumwe rutivi rwemhepo. Panguva ino, mapedhi asingashande, kuburikidza nefirimu rawo remafuta rakaita se wedge, anobatsira kuyera chikamu ichi che axial thrust, kudzivirira kusundidzira mberi zvakanyanya kwe turbine uye kudzivirira kuroverana nekusakara pakati pezvikamu zvinofamba uye zvisina kumira.

 

3. TSI Monitoring Parameters Munguva yeSteam Turbine Operation

1. Tembiricha yesimbi inotsigirwa < 105°C.

2. Tembiricha yesimbi inopinza < 100°C.

3. Tembiricha yekushanda ye thrust pads < 100°C.

4. Tembiricha yekumeso isingashande yema "thrust pads" <100°C.

5. Kufamba kweAxial < 1.2 mm uye > -0.6 mm.

6. Kukura kwemusiyano wesilinda ine kumanikidzwa kwepamusoro uye kwepakati < 6 mm uye > -3 mm.

7. Kudedera kwechivharo chebheyaringi < 0.05 mm, kudedera kwehurongwa hwemugodhi < 125μm.

8. Kutsauka pakureba kwemasilinda ekuruboshwe nerudyi kunofanira kunge kuri kudiki.