Uling ing obra ning sealing element ya ing pamag-interrupt at pamagkonekta, pamag-regulate at pamag-distribute, pamag-separate ampo pamag-mix kareng media keng valvpassage, ing sealing surface maralas yang mipailalam keng corrosion, erosion, ampo wear ning media, na gagawang maragul a pangasira.
Key Words:ing sealing surface；corrosion；erosion；wear
Atin yang adwang sangkan ing pangasira ning sealing surface: pangasira ning tau ampo pangasira ning natural. Ing pangasira ning tau manibatan ya kareng sangkan antimo ing e masanting a disenyu, pamaglalang, pamili kareng materyales, e ustung pamag-install, e masanting a pamangamit, at pamag-maintain. Ing natural a pangasira yapin ing pangasira ning balbula keng normal a kundisyun ning obra at iti ing sangkan ning e maliaring pangasira at pangasira ning sealing surface ning media.
Ing sangkan ning pangasira ning sealing surface malyari yang i-summarize anti kanini:
E masanting a kalidad ning pamag-machine ning sealing surface: Iti keraklan mayayakit ya kareng depektu antimo reng bitag, pores, ampo inclusions keng sealing surface. Iti ing sangkan ning e ustung pamili kareng standards ning welding ampo heat treatment, ampo ing e masanting a operasyun kabang magwelding ampo heat treatment. Ing katigasan ning sealing surface masyadu yang matas o masyadung mababa pauli ning e ustung pamili king materyal o e ustung pamag-heat treatment. Ing e pantas a katigasan ning sealing surface ampo ing e masanting a corrosion resistance keraklan uli ning pamanyubling mebie ning metal keng babo kabang magwelding ya, na magpalaso keng alloy composition ning sealing surface. syempre, atin mu namang isyung disenyu keng bage ayni.
Ing pangasira a sangkan ning e ustung pamili at operasyun: Iti keraklan mayayakit ya keng e pamagpilibalbulas agpang keng kundisyun ning obra, gamit ing shut-off valve bilang throttling valve, a magresulta keng sobrang pressure kabang magsara, mabilis a pamagsara, o e kumpletung pamagsara, a magdalang erosion ampo wear keng sealing surface. Ing e ustu pamag-install ampo ing e masanting a pamag-maintain magdalang abnormal a operasyun ning sealing surface, a magdalangbalbulapara mag operate keng sakit ampo e pa panaun a makasira keng sealing surface.
Chemical corrosion ning medium: Ing medium a makapadurut keng sealing surface chemically react ya keng sealing surface alang gagawang current, makasira ya keng sealing surface. Electrochemical corrosion, contact pilatan da reng sealing surfaces, contact pilatan ning sealing surface ampo ing closing body ampobalbulakatawan, ampo ing pamiyaliwa ning konsentrasyun ampo oxygen content ning medium, ngan magproduce lang potensyal a pamiyaliwa, magdalang electrochemical corrosion ampo makasira keng anode-side sealing surface.
Erosion ning medium: Iti ing resulta ning wear, erosion, ampo cavitation ning sealing surface nung ing medium mamagus ya. keng metung a bilis, deng mangalating particles keng medium makabangga la keng sealing surface, a magdalang lokal a pangasira. Ing matas a bilis a mamagus a medium diretsu yang mamagus keng sealing surface, magdalang lokal a pangasira. Potang ing medium mipagkalub ya at partially vaporizes, misasabog la reng bula at mibagsak la keng sealing surface, a magdalang lokal a pangasira. Ing pamisanmetung ning erosion ampo ing chemical corrosion ning medium masikan yang makasira keng sealing surface.
Mechanical damage: Ing sealing surface makagasgas ya, makabunggo ya, ampo makapitpit ya kabang magbukas ya ampo magsara ya. Deng atom pilatan da reng adwang sealing surfaces mag permeate la keng metung at metung keng matas a temperatura ampo pressure, gagawang adhesion phenomenon. Nung deng adwang sealing surface kikimut la keng metung at metung, ing adhesion point madali yang masira. nung mas matas ya ing roughness ning sealing surface, mas maragul ing chance na malyari ining phenomenon. Nung makasara ya ing balbula, ing disc ning balbula mibagsak ya at mipitpit ya keng sealing surface, a maging sangkan ning local wear o indentation keng sealing surface.
Fatigue damage: Ing sealing surface mipailalam ya kareng alternating loads neng makabang panaun ing pamangamit, magdalang kapagalan at magresulta kareng cracks ampo delamination. Ing goma ampo ing plastic madali lang matua kaybat ning makabang panaun a pamangamit, a magdalang pamagbaba king performance. Manibat keng pamagsuri kareng sangkan ning pangasira ning sealing surface, akit tamu na para asundu ing kalidad ampo ing bie ning serbisyu da reng valve sealing surfaces, kailangan lang mamili deng ustung sealing surface materials, makatuliran a sealing structures, ampo reng paralan ning pamagprosesu.
TWS valve keraklan makipag ugnayan ya kenggoma a makalukluk a balbula ning parul, Gate valve, Y-strainer, balancing valve, Wafe check valve, ampo.
Oras ning pamagpost: May-13-2023
