Ivalve yokhuseleko ihlala idibana nesigwebo sempazamo kunye nokugcinwa kwemiyalelo yokusetyenziswa kwevalvu yefluorine

Ivalve yokhuseleko ihlala idibana nesigwebo sempazamo kunye nokugcinwa kwemiyalelo yokusetyenziswa kwevalvu yefluorine

Ivalve yokhuseleko ibisoloko idibana nesigwebo sempazamo kunye nokugcinwa kwayo
1. Musa ukuvula xa uxinzelelo lucacisiwe
Isizathu sale meko kukuba uxinzelelo oluqhubekayo aluchanekanga. Ukunyanzeliswa kwentwasahlobo okanye indawo yesando kufuneka ilungiswe; Izinti zediskhi kwindawo yokuhlala. Ivalve yokhuseleko kufuneka ibe luvavanyo lwezandla rhoqo lomoya okanye lwamanzi; Isixhobo sokhuseleko sohlobo lwelever sixingile okanye ihamile enzima iyasuswa. Ubunzima kufuneka bulungiswe kwaye i-lever kufuneka ihambe ngokukhululekile.
2, ngaphantsi koxinzelelo oluchaziweyo oluvulekileyo
Uxinzelelo oluphambili aluchanekanga; Ukuguga kwentwasa hlobo kuyancipha. I-screw yokulungelelanisa okanye intwasahlobo kufuneka iqiniswe ngokufanelekileyo.
3. I-disc ayibuyeli kwisihlalo emva kokukhutshwa
Oku kubangelwa ikakhulu sisikhondo sokugoba entwasahlobo, indawo yokufaka idiskhi ayichanekanga okanye ibambekile. Ifanele idityaniswe kwakhona.
4, idiskhi frequency jump okanye vibration
Isizathu esona sizathu kukuba ukuqina kwentwasahlobo kukhulu kakhulu. Intwasahlobo enokuqina okufanelekileyo kufuneka isetyenziswe endaweni yoko; Isangqa sokulungelelanisa asilungiswanga kakuhle, ukwenzela ukuba uxinzelelo luphezulu kakhulu. Indawo yeringi yokulungelelanisa kufuneka ilungiswe; Ukuchasana kombhobho wokukhupha kukhulu kakhulu, kubangele ukukhupha uxinzelelo lwangasemva. Ukuchaswa kwemibhobho yokukhupha kufuneka kuncitshiswe.
5. Uxinzelelo luyaqhubeka nokunyuka emva kokuphuma
Oku kungenxa yokuba ukhetho lwevalvu yokhuseleko yokufuduswa kweXiaoping yokukhutshwa kokhuseleko, kufuneka kuphinde kukhethwe ivalve efanelekileyo yokhuseleko; Umgca ophakathi kwe-Stem okanye i-spring rust, ukwenzela ukuba i-disc ayikwazi ukuvulwa ekuphakameni okufanelekileyo, kufuneka iphinde ihlanganiswe isiqu okanye ithathe indawo yentwasahlobo; Ukuba ukusika kombhobho wokukhupha akwanele, umbhobho wokukhupha ngokuhambelana nommandla okhuselekileyo wokukhupha kufuneka wamkelwe.
6, ukuvuza
Ngaphantsi koxinzelelo oluqhelekileyo lokusebenza kwezixhobo, ukuvuza phakathi kwediski kunye nokutywinwa kwendawo yokuhlala kudlula iqondo elivumelekileyo. Isizathu kukuba: kukho ukungcola phakathi kwediski yevalve kunye nokutywinwa kwendawo yokuhlala. Unokusebenzisa i-wrench yokuphakamisa ukuvula ivalve amaxesha amaninzi, ukungcola kuhlanjwe; Umonakalo kwindawo yokutywina. Kufuneka kulungiswe ngokusila okanye ukugaya emva kokujika ngokwezinga lomonakalo. Ukugoba kwesiqu, ukuthambeka, okanye i-lever kunye ne-fulcrum deflection, okukhokelela kwi-spool kunye ne-disc misalignment. Kufuneka idityaniswe ngokutsha okanye itshintshwe; I-elasticity yasentwasahlobo iyancipha okanye ilahlekelwa ukunyameka. Amanyathelo afana nokutshintsha intwasahlobo kunye nokulungiswa koxinzelelo lokuvula kufuneka kuthathwe.
Imiyalelo yokusetyenziswa kweevalvu ezine-fluorine
Iimpawu eziphambili zevalve ene-fluorine:
Okokuqala, ukusebenza kweekhemikhali zevalve ene-fluorine:
Ukumelana nokuguga kwe-Atmospheric: ukumelana nokukhanya kwemitha kunye nokunyanzeliswa okuphantsi: ukubonakaliswa kwexesha elide kwi-atmospheric, umphezulu kunye neempawu zihlala zingatshintshi.
Ukungatshi: isalathisi somda we-oxygen ngaphantsi kwe-90.
Ukumelana ne-Acid kunye ne-alkaline: i-insoluble kwi-acids eqinile, iziseko kunye ne-solvents eziphilayo.
Ukuxhathisa kwi-oxidation: Ukumelana nokubola zii-oxidants ezinamandla.
Ezimbini, iimpawu zokusebenza zevalvu enefluorine:
Ukusebenza: Ubushushu obuphakathi bokusebenza: -100℃~-150℃
Uxinzelelo oluphakathi lokusebenza: uxinzelelo oluhle: 2.5mpa, uxinzelelo olubi kwiqondo lokushisa kwegumbi 70KPa
Ukumelana ne-Corrosion: intsimbi ye-PTFE umbhobho odibeneyo, ukongeza kwi-lithium yesinyithi etyhidiweyo, i-potassium, i-sodium, i-chlorine trifluoride, i-oxygen trifluoride kubushushu obuphezulu, izinga lokuhamba okuphezulu kwe-fluorine yolwelo, inokuxhathisa phantse yonke imithombo yeendaba zemichiza, kubandakanywa ne-nitric acid kunye ne-aqua royalty corrosion. , inokusebenza kwiqondo lobushushu le-230℃-250℃ ixesha elide. Insimbi ye-polyvinylidene fluoride okanye enye i-vinylidene fluoride umbhobho odibeneyo, i-halogen, i-halogenated hydrocarbons, i-oxidants eyomeleleyo, i-asidi ebilayo, i-alkali, iintlobo ze-solvents eziphilayo zinokuxhathisa okulungileyo kokubola, kodwa azikwazi ukumelana nomsi we-asidi ye-sulfuric, i-acid eshushu ye-sulfuric kunye ne-nitric acid, i-ketones. , ii-esters, ii-amines kunye nobushushu obuphezulu be-sulfonating agent corrosion ngaphezu kwe-90℃.
Iinzuzo eziphambili zevalve ene-fluorine:
Ubushushu obuphezulu obuxhathisa ubushushu bokusebenza ukuya kuthi ga kwi-250℃
Ukumelana nobushushu obuphantsi kunye nokuqina okuhle komatshini; Naxa ubushushu behla ukuya ku -196℃, ubude be-5% bunokugcinwa.
Ukumelana nokubola kwiikhemikhali ezininzi kunye ne-solvents, ebonisa inertia, i-asidi eqinile kunye ne-alkali, amanzi kunye neentlobo ezahlukeneyo ze-solvents eziphilayo.
Ukumelana nemozulu kunye nobomi bokuguga kwiiplastiki.
I-lubrication ephezulu yi-coefficient ye-friction ephantsi kwizinto eziqinileyo.
Ukungabambeleli yintlupheko encinci yomhlaba kwizinto eziqinileyo, ayihambisani nayo nayiphi na into.
I-non-toxic with physiological inertia, engeyiyo ityhefu kwizinto eziphilayo.
Usetyenziso oluphambili lwevalvu ene-fluorine:
I-FLUorine LINED VALVE IFANELE ubushushu obuphezulu berhasi edlayo kunye nolwelo, ezinye iintlobo zentsimbi yombhobho weplastiki ehlanganisiweyo kunye nombhobho wentsimbi ayifanelekanga ukuhanjiswa okuphakathi, intsimbi ye-PTFE. Umbhobho odibeneyo wensimbi we-polyvinylidene fluoride ulungele ukuhambisa imidiya edlayo kunye nobushushu obusebenzayo ukusuka -40 ℃ ukuya +150 ℃.
Intshayelelo yetekhnoloji yokusetyenzwa kwevalvu ye-Fluorine lining
A, tetrafluoroethylene (PTFE)- sodium naphthalene isisombululo unyango bonding indlela
I-Polytetrafluoroethylene (PTFE) - indlela yokudibanisa isisombululo sesodium naphthalene: unyango lwesisombululo sesodium naphthalene sefluorine equlethe izinto, ngokukodwa ngolwelo olunokuhlwa kunye ne-PTFE yeplastiki ye-chemical reaction, ikrazula inxalenye ye-athomu ye-fluorine phezu kwezinto, ngoko ke kumphezulu osekhohlo. umaleko we-carbonized kunye namaqela athile amhlophe. I-spectrum ye-infrared ibonisa ukuba ukuqaliswa kweqela le-hydroxyl, iqela le-carbonyl kunye ne-unsaturated bond kunye namanye amaqela e-polar ebusweni, la maqela anokunyusa amandla angaphezulu, anciphise i-Angle yoqhagamshelwano, aphucule ukumanzi, ukusuka kunzima ukunamathela. Le yeyona ndlela isebenzayo kwaye isetyenziswa ngokuqhelekileyo kuzo zonke iindlela ezifundiweyo ngoku. I-sodium naphthalene tetrahydrofuran isetyenziswa ngokubanzi njengesisombululo somhlwa. Inkqubo yokudibanisa imi ngolu hlobo lulandelayo:
(1) Ukulungiswa kwesisombululo sonyango: yongeza umlinganiselo othile wesinyithi sesodium kwisisombululo se-tetrahydrofuran kunye ne-naphthalene, iqhezu elikhulu lesinyithi se-sodium lilawulwa kwi-3% -5%, livuselela kwiqondo lokushisa malunga ne-2h, kude kube nombala we-sodium. isisombululo sibonakala simnyama okanye simnyama;
(2) i-workpiece ye-PTFE ukuba iphathwe yantywiliselwa kwisisombululo malunga ne-5 ~ 10min, kwaye ifakwe kwi- ** isisombululo se-3 ~ 5 min;
(3) Susa i-workpiece kwisisombululo, yihlambulule ngamanzi uze uyibeke emthunzini ukuze yome ngokwemvelo;
(4) Khetha i-epoxy resin, i-silicone okanye i-polyurethane njenge-adhesive, ifakwe ngokulinganayo kwindawo ephathwayo ukuba idibaniswe kwaye idibaniswe ngokukhawuleza, imele i-24 ~ 30 ℃ ye-24h, unako ukudibanisa ngokuqinileyo.