Umqondo Wokusetshenziswa Kwezinto Zokufaka Amavalvu Emishinini Yensimbi: Kusukela Esihlalweni Sevalvu Kuya Eshafini Eliphansi
Ezinhlelweni zokulawula ezinkulu embonini yensimbi, ukusebenza kwama-ball valve kanye nokufakwa kwama-valve esango kuthinta ngqo ukuzinza kokusebenza kwamapayipi esithando kanye nezinhlelo zamanzi okupholisa. Kaningi, inkinga ensimini ayikho ngomklamo wama-valve ojwayelekile, kodwa ngezingxenye ezimbalwa ezincane nezingabonakali - njengokucwila kwesihlalo, ukuphambuka kwe-shaft clearance ephansi, noma ukukhathala kwebhokisi lokugcwalisa ukuguga. Uma lolu hlobo lwenkinga luqoqana, ukujikeleza kwe-sphere akusekho endaweni, futhi ukuphambuka kokuvula nokuvala kuzoba ukwehluleka kwesistimu.
Eminyakeni yamuva nje, siqhathanise amaphrojekthi e-oxygen main pipe kanye ne-coke oven main line ball valve emishinini eminingi yensimbi, futhi izinkinga ezivamile zigxile esakhiweni se-valve stem kanye nokuphila kwesihlalo sentwasahlobo. Imidwebo yokuqala yekhasimende isebenzise isihlalo se-valve esivalwe ngokuphelele, kodwa ukuphotha kwentwasahlobo kwehluleka ngokushesha ngaphansi kokuvulwa nokuvalwa okuvama kakhulu, futhi indawo yokuvala kunzima ukuyilingana. Silungise isakhiwo, sashintsha saba isihlalo sentwasahlobo esihlukanisiwe esinomkhawulo wezindlela ezimbili, futhi ukumelana nokuguguleka kwe-shaft engezansi kanye nendandatho yokusekela kuthuthukiswe kakhulu ngemva kokwelashwa nge-nitriding.
Kwingxenye efana nomgodi ongezansi, izidingo azinzima, kodwa kumele ziqondaniswe futhi zingamelani. Uma ibhola nomgodi kungaqondanisiwe, noma ngabe ukusebenza kwe-actuator kuhle, isivinini sokuvula nokuvala sizoncishiswa yiphutha. Uma sifanisa, sidinga amakhasimende ukuthi ahlinzeke ngesakhiwo se-ball core kanye ne-upper shaft ukuze kulawulwe i-coaxiality.
Kulolu hlobo lwephrojekthi yokusekela, 'izingxenye ezincane zesakhiwo' ezifana nama-bracket, ama-bonnet, nama-stem nuts ngokuvamile ziyizinto ezibalulekile ezinquma impilo yesevisi yomshini wonke. Abahilelekile ngokuqondile ekuvaleni, kodwa banquma ukuthi ukuvulwa nokuvalwa kubushelelezi yini. Abangane abenza ukuhweba kwamanye amazwe kungenzeka ukuthi bahlangane: lapho ikhasimende lihlola, akukhona ukubheka ukubukeka, kodwa ukuhlakaza imidwebo yomhlangano ungqimba ngengqimba ukuze babone ukuthi ukunemba kwalezi zingxenye ezincane kusezingeni elifanele yini.
Ngakho-ke, noma ngabe ukufakwa kwe-valve, ungakubheki njengento encane, izinkinga zokuklama nokucubungula zingadalulwa ngesikhathi sokuhlanganiswa endaweni. Uma senza lolu hlobo lwephrojekthi, sizoncoma ngokufanayo ukuthi amakhasimende athumele imidwebo ukuqinisekisa uhlelo, kanye nokuhlolwa nokuhlanganiswa ngaphambi kokuhlanganiswa, ikakhulukazi ezakhiweni ezihlangana njengezihlalo ze-valve, izihlalo zasentwasahlobo, kanye neziqu ze-valve.