I-HITORK Ivalve yokulawula i-Pneumatic yinto eqhelekileyo kakhulu ehlakaniphile kwinkqubo yokuvelisa.Kwinkqubo yokulawula, i-valve yokulawula i-pneumatic ngokuqinisekileyo iya kubonakala i-friction.Ngoko ke yintoni impembelelo yokungqubana kwiivalvu zolawulo lwe-pneumatic?
Ukoyisa ukukhuhlana ngomnye wemisebenzi ephambili ye-valve positioner.Ukukhuhlana kwevalve yokulawula ivela ikakhulu kumacandelo amabini: ukupakisha kunye neringi yevalve yesivalo.Ukuba i-stem ayigudi okanye ukupakishwa kuqinile kakhulu, ukungqubuzana phakathi kwesiqu kunye nokupakisha kunokuba kuninzi.Kumaxesha obushushu obuphezulu, ukudityaniswa kokuphazamiseka kweringi yegraphite kunye nomkhono kudla ngokusetyenziswa ukwenza ivalve elawulayo ihlangabezane neemfuno zokutywinwa koyilo.Ukuba uphazamiseko lukhulu kakhulu okanye i-sleeve ellipse inkulu kakhulu, ingxabano phakathi kwe-spool kunye nomkhono mkhulu kakhulu.Ngenxa yokuba amandla okungqubana okumileyo mkhulu kakhulu kunokrwada oguquguqukayo, kumgama woluhlu olukhulu lwesenzo, ivalve iya kutsiba, ekwabizwa ngokuba yiperistalsis.Indlela yokuguquguquka kwayo ngolu hlobo lulandelayo: xa uguquko lwetelesignal (okt isiginali yenyathelo) lusenzeka, ukutenxa okungalunganga okubangwa kukukhuhlana kukhulu kakhulu, kwaye isiphumo sisonke sesiphawuli sihlala sinyusa imveliso.Xa i-static friction force inyuka ngokwaneleyo ukoyisa, i-valve isebenza.Ngenxa yokuba i-static friction inkulu kune-dynamic friction, ivalve overshoot, ukutenxa okungalunganga kuba kukutenxa okulungileyo.Inkqubo inzima ukuzinzisa ngenxa yokugqithisa ngokuphindaphindiweyo.Ngokujolise kwingxaki yokruthakruthwano, abanye abavelisi beshifter bayila i-algorithm ye-friction ephezulu, enciphisa kakhulu ukwenzeka kokuguquguquka kwevalve.