Valve a na-ejikarị ihe anaghị eme ọla na-enyocha ọnọdụ njikọ n'etiti ihe na-eme ọkụ eletrik na valvụ ọ bụla
Ethylene propylene rọba oche gosiri okpomọkụ nso bụ -28 ¡æ ~ 120 ¡æ. EPDM na-anọchi anya terpolymer nke ethylene, propylene, na diene, nke a na-akpọkarị EPT Nordell. Ọkachamara ozone na-eguzogide na ihu igwe, ezigbo mkpuchi ọkụ eletrik, ezigbo nguzogide polar capacitors na mgbasa ozi inorganic. Ya mere, enwere ike iji ya na ụlọ ọrụ HVAC, mmiri, phosphate ester, mmanya, ethylene glycol, wdg. A naghị atụ aro oche Ethylene propylene roba maka iji mee ihe na hydrocarbon organic SOLVENTS NA OIL, HYDROCARBONS chlorineted, turpentine, ma ọ bụ mmanụ mmanụ ndị ọzọ.
Valve na-ejikarị ihe ndị na-abụghị ọla
Ndewo, rọba nitrile
Nitrile rọba oche nke okpomọkụ nso bụ -18 ¡ã C ruo 100 ¡ã C. A na-akpọkwa ya NITRILE, ma ọ bụ HYCAR. Ọ bụ ihe eji eme rọba zuru ụwa ọnụ nke kwesịrị ekwesị maka mmiri, gas, mmanụ na griiz, mmanụ ụgbọala (ma e wezụga mmanụ ụgbọala nwere ihe mgbakwunye), mmanya na ethylene glycol, gas gas, propane na butane, mmanụ mmanụ na ọtụtụ mgbasa ozi ndị ọzọ. Ọ nwekwara ezigbo mgbochi iyi na nguzogide nrụrụ. Nri nri (FG) nitrile rọba oche nke okpomọkụ nso bụ -18¡æ ka 82 ¡æ. Ihe mejupụtara ya dabara na ọkọlọtọ CFR Nkebi 21, Nkebi 177.2600. Enwere ike iji ya n'otu ụzọ ahụ dị ka rọba nitrile mgbe niile mana ọ chọrọ nkwado FDA.
Ethylene propylene roba EPDM
Ethylene propylene rọba oche gosiri na okpomọkụ nso bụ -28¡æ ~ 120¡æ. EPDM na-anọchi anya terpolymer nke ethylene, propylene, na diene, nke a na-akpọkarị EPT Nordell. Ọkachamara ozone na-eguzogide na ihu igwe, ezigbo mkpuchi ọkụ eletrik, ezigbo nguzogide polar capacitors na mgbasa ozi inorganic. Ya mere, enwere ike iji ya na ụlọ ọrụ HVAC, mmiri, phosphate ester, mmanya, ethylene glycol, wdg. A naghị atụ aro oche Ethylene propylene roba maka iji mee ihe na hydrocarbon organic SOLVENTS NA OIL, HYDROCARBONS chlorineted, turpentine, ma ọ bụ mmanụ mmanụ ndị ọzọ.
Oche oche rọba ethylene propylene ọkwa nri akwadoro oke okpomọkụ bụ -28¡æ~120¡æ. Ihe mejupụtara ya dabara na ọkọlọtọ CFR Nkebi 21, Nkebi 177.2600. Enwere ike iji ya n'otu ụzọ ahụ dị ka rọba nitrile mgbe niile mana ọ chọrọ nkwado FDA.
PTFE PTFE
Teflon oche e gosiri okpomọkụ nso bụ -32 ¡ã C ka 200 ¡ã C. Magburu onwe na-eguzogide okpomọkụ dị elu na chemical corrosion. N'ihi nnukwu njupụta nke polytetrafluoroethylene, ọmarịcha permeability, ma ọ pụkwara igbochi corrosion nke ọtụtụ mgbasa ozi kemịkalụ.
TEFLON na-arụ ọrụ bụ ngwaahịa TEFlON gbanwetụrụ nke na-enye ohere ugbu a ịgafe na mkpuchi iji wepụ ihe mkpuchi nke TEFlON. N'ihi arụmọrụ ya, polytetrafluoroethylene na-eduzi enweghị ike ịnwale site na ọkụ eletrik.
Mgbakwunye polyteflon RTFE
RTFE bụ ngbanwe nke ihe PTFE. Ọ bụ ezie na esemokwu ọnụọgụ nke dị ọcha PTFE bụ nnọọ ala (0.02 ~ 0.04), ma na-eyi dị ukwuu, na n'ihi na ya mfe creep, ogbenye n'ibu Njirimara, ala ibu ikike, ogbenye akụkụ kwụsie ike na ndị ọzọ e ji mara, dị ka esemokwu ihe nwere oké. oke. Naanị mgbanwe, site na usoro nke ihe mejupụtara iji gboo ihe pụrụ iche chọrọ nke ihe mkpuchi mkpuchi na-eyi na-eguzogide n'akụkụ niile nke ndụ, na-emeziwanye ihe mgbochi nke PTFE, enwere ike ịgwakọta ya na ụfọdụ ihe na-eguzogide ọgwụ dịka iko eriri, eriri carbon. , graphite, molybdenum disulfide, bronze ntụ ntụ na ụfọdụ organic ogige, The ntupu nkwonkwo na-guzobere na PTFE layered Ọdịdị iji melite isiike, thermal conductivity, creep resistance, and wear resistance.
Fluorine roba Viton
Ọnọdụ okpomọkụ nke oche rọba fluorine bụ -18¡æ ~ 150¡æ. Viton bụ ụghalaahịa edenyere n'akwụkwọ ikikere nke Ụlọ ọrụ DuPont, yana Fluorel bụ ụghalaahia edenyere n'akwụkwọ ikikere nke dabara na rọba fluorine nke Ụlọ ọrụ 3M. Ihe a nwere nnukwu nguzogide okpomọkụ yana ezigbo nguzogide corrosion kemịkalụ. Kwesịrị ekwesị maka ngwaahịa hydrocarbon, obere ntinye uche na nnukwu ntinye nke mineral acid, ma ọ bụghị na mgbasa ozi uzuoku na mmiri (mmiri na-eguzogide mmiri).
Polyethylene UHMWPE dị arọ dị elu dị elu
Ultra-high molecular arọ polyethylene oche na-nyere si -32 ¡ã C ka 88 ¡ã C. Nke a ihe onwunwe nwere mma ala okpomọkụ eguzogide karịa PTFE, ma ka nwere magburu onwe chemical iguzogide. Uhmwpe nwekwara ezigbo mgbochi iyi na nguzogide corrosion, enwere ike iji ya mee ihe n'ọnọdụ nguzogide oke iyi.
Silicone ọla kọpa roba Silicone
Roba silicone ọla kọpa bụ polymer nwere otu organic, nke isi yinye ya bụ silicon na atom oxygen. Okpomọkụ a na-egosi site na -100 ¡ã C ruo 300 ¡ã C. Ọ nwere ezigbo okpomọkụ na-eguzogide okpomọkụ, ezigbo mkpuchi ọkụ eletrik na nnukwu inertness kemịkal. Kwesịrị ekwesị maka organic acid na obere ntinye nke inorganic acid, itughari alkali na alkali gbadoro anya. Ọdịmma: obere ígwè ọrụ ike. Achọrọ ọgwụgwọ vulcanization mgbe e mesịrị.
Graphite eserese
Graphite bụ kristal nke carbon, bụ ihe na-abụghị ọla, ọlaọcha isi awọ agba, àgwà dị nro, nwere ọla. Ike Mohs bụ 1 ~ 2, ike ndọda kpọmkwem bụ 2.2 ~ 2.3, na njupụta buru ibu bụ 1.5 ~ 1.8. Ọ nwere oke okpomọkụ na-eguzogide, oxidation resistance, corrosion resistance, thermal shock resistance, elu ike, ezi ike, elu onwe-lubricating ike, ike thermal conductivity, eletriki conductivity na ndị ọzọ pụrụ iche anụ ahụ na chemical Njirimara. Ọ nwere nguzogide oxidation pụrụ iche, lubricity na plasticity na elu okpomọkụ, yana ezigbo ọkụ eletrik, thermal na adhesion Njirimara. Enwere ike iji ya dị ka ihe ndochi ma ọ bụ arụmọrụ IMPROver maka rọba, rọba na ihe dị iche iche mejupụtara iji melite nguzogide eyi, nguzogide mkpakọ ma ọ bụ omume nke ihe. The valvụ gasket, mbukota na oche na-emekarị mere nke graphite.
Graphite nke elu agbaze ebe, ka 3000 ¡æ n'okpuru agụụ bụ na-amalite nro nēche agbaze ala, graphite evaporated sublimation ka 3600 ¡æ, n'ozuzu ihe n'okpuru elu okpomọkụ ike mbelata nwayọọ nwayọọ, mgbe graphite na kpụ ọkụ n'ọnụ na 2000. ¡æ, ike ya bụ okpomọkụ nkịtị okpukpu abụọ kama, ma ọdịiche nke oxidation iguzogide nke graphite ọxịdashọn ọnụego e ji nwayọọ nwayọọ mụbaa na okpomọkụ.
The thermal conductivity na eletriki conductivity nke graphite bụ nnọọ elu, ya conductivity bụ 4 ugboro elu karịa igwe anaghị agba nchara, 2 ugboro elu karịa carbon ígwè, 100 ugboro elu karịa n'ozuzu na-abụghị metal. Ya thermal conductivity, ọ bụghị naanị karịa ígwè, ígwè, ụzọ na ndị ọzọ metal ihe, ma na okpomọkụ na-abawanye na thermal conductivity mbelata, nke dị iche na n'ozuzu metal ihe, na nnọọ elu okpomọkụ, graphite ọbụna nēche adiabatic ala. Ya mere, n'okpuru ọnọdụ okpomọkụ dị elu, arụmọrụ mkpuchi graphite bụ ihe a pụrụ ịdabere na ya. Graphite nwere mma mmanu na plasticity, graphite esemokwu ọnụọgụ bụ ihe na-erughị 0.1, graphite nwere ike ịzụlite n'ime permeable ìhè mpempe akwụkwọ, na nke mbụ na-adọ nke graphite hardness bụ nnọọ nnukwu, ọbụna na diamond ngwaọrụ siri ike hazie. Graphite nwere nkwụsi ike nke kemịkalụ, nguzogide acid, nguzogide alkali, iguzogide corrosion organic solvents. N'ihi n'elu pụrụ iche magburu onwe Njirimara nke graphite, na oge a ulo oru ojiji esiwanye magburu onwe.
Ọnọdụ njikọ dị n'etiti onye na-eme ọkụ eletrik na valvụ ọ bụla
Igwe ọkụ eletrik na-ejikọta ya na valvụ, nke a na-eji na usoro njikwa akpaaka. Enwere ọtụtụ ụdị ọkụ eletrik, nke dị iche na ụdị ọrụ. Dịka ọmụmaatụ, onye na-eme ihe ọkụ eletrik angular bụ mpụta angular torque, ebe ọkụ eletrik na-arụ ọrụ strok kwụ ọtọ bụ ntinye mbugharị mmepụta. A ga-ahọrọ ụdị onye na-eme ihe ọkụ eletrik na ngwa ngwa dị ka mkpa ọrụ nke valvụ ahụ si dị.
Usoro njikọ
Njikọ I. Flange:
Nke a bụ ụdị njikọ a na-ejikarị na valves. Dị ka ọdịdị nke nkwonkwo elu, ọ nwere ike kewaa n'ime ndị a:
1. Ụdị dị nro: ejiri valvụ na obere nrụgide. Nhazi dị mma
2, concave na convex ụdị: elu arụ ọrụ nrụgide, ike ga-eji na ike washer
3. Tenon na uzo ụdị: gasket na nnukwu nrụrụ plastik nwere ike iji mee ihe na mgbasa ozi na-emebi emebi, na mmetụta mkpuchi dị mma.
4, ụdị trapezoidal groove: na mgbanaka ọla oval dị ka onye na-asa ihe, nke a na-eji arụ ọrụ nke 64 kg / cm2 valve, ma ọ bụ valvụ dị elu.
5, ụdị oghere: onye na-asa ihe bụ ọdịdị oghere, nke ejiri ọla mee. Maka valvụ dị elu na-enwe nrụgide na-arụ ọrụ nke 100 kg / CM2, ma ọ bụ valvụ okpomọkụ dị elu.
6, Ụdị mgbanaka O: Nke a bụ ụdị njikọ flange ọhụrụ dị ọhụrụ, a na-emepụta ya na ọdịdị dị iche iche roba O mgbanaka, ọ bụ na akara akara nke ụdị njikọ.
Abụọ, njikọ eriri:
Nke a bụ ụzọ njikọ dị mfe ma na-ejikarị obere valvụ eme ihe. Enwere ikpe abụọ ọzọ:
1, akara akara ozugbo: eriri ime na nke mpụga na-arụ ọrụ nke akara. Iji hụ na nkwonkwo anaghị agbapụta, mgbe mgbe, mmanụ ọkụ, linoleum na PTFE akụrụngwa jupụtara; Ptfe raw material belt, ojiji nke na-abawanye ewu ewu; Ihe a nwere ezigbo nguzogide corrosion, mmetụta mkpuchi, dị mfe iji ma chekwaa, nkwụsịtụ, nwere ike iwepụ kpamkpam, n'ihi na ọ bụ ihe nkiri na-adịghị ahụ anya, nke dị elu karịa mmanụ mmanụ, linoleum.
2. Akara akara na-apụtaghị ìhè: a na-ebufe ike nke screw tightening na washer n'etiti ụgbọ elu abụọ ahụ, nke mere na onye na-asa ákwà na-arụ ọrụ nkedo.
Atọ, njikọ aka aka kaadị:
Njikọ na ụkpụrụ akara nke clamping aka uwe bụ na mgbe a na-esi ike nut, a na-agbanye aka na-agbanye aka, nke mere na ọnụ ya na-adaba n'ime mgbidi dị n'èzí nke ọkpọkọ ahụ, na cone na-ejide aka dị n'akụkụ cone nkwonkwo ahụ. n'okpuru nrụgide, ya mere ọ nwere ike ịdabere na ya gbochie ntapu.
Uru nke ụdị njikọ a bụ:
1, obere nha, ịdị arọ dị arọ, usoro dị mfe, nkwụsịtụ dị mfe;
2, njikọ siri ike, ọtụtụ ojiji, nwere ike iguzogide nrụgide dị elu (1000 kg / cm2), okpomọkụ dị elu (650 ¡æ) na ịma jijiji
3, nwere ike ịhọrọ ihe dị iche iche, dị mma maka mgbochi corrosion;
4, machining ziri ezi chọrọ adịghị elu; Ọ dị mfe ịwụnye na elu elu.
Ejila ụdị njikọ sleeve na-ejide aka na ụfọdụ ngwaahịa valvụ obere dayameta na China.
Anọ, njikọ mkpọchi:
Nke a bụ usoro njikọ ngwa ngwa nke na-achọ naanị bolts abụọ ma dabara adaba maka valvụ nrụgide dị ala na-ewepụ ugboro ugboro.
Ise, njikọ imechi onwe ya n'ime:
N'elu ụdị njikọ ọ bụla, bụ iji ike mpụga iji mebie nrụgide nke usoro, iji nweta akara. Ihe na-esonụ na-akọwa ụdị njikọ nke njide onwe onye site na iji nrụgide ọkara. A na-etinye mgbanaka akara ya n'ime cone dị n'ime, yana akụkụ nke dị n'akụkụ nke ọzọ n'ime akụkụ ụfọdụ, nrụgide dị n'ime cone dị n'ime, ma bufee ya na mgbanaka akara, na akụkụ ụfọdụ nke elu cone, na-emepụta ihe abụọ, otu yiri ya. etiti etiti nke valvụ ahụ n'èzí, nrụgide ọzọ na mgbidi dị n'ime nke valvụ ahụ. Akụkụ nke ikpeazụ bụ ike na-ejide onwe ya. Nnukwu nrụgide ọkara, ka ike na-ejide onwe ya. Ya mere, ụdị njikọ a dị mma maka valves nrụgide dị elu. Ọ na-echekwa ọtụtụ ihe na ọrụ karịa njikọ flanged, ma ọ na-achọkwa ka ọ bụrụ nke a na-ebu ibu, nke mere na nrụgide dị na valvụ ahụ adịghị elu, a pụrụ ịdabere na ya. valvụ ahụ nke ụkpụrụ nke njide onwe onye siri ike bụ n'ozuzu valvụ nrụgide dị elu.
Enwere ọtụtụ ụdị njikọ valvụ, dịka ọmụmaatụ, ụfọdụ agaghị ewepụ obere valvụ ahụ, jikọtara ya na ọkpọkọ; Ụfọdụ valvụ ndị na-abụghị ọla, na-eji njikọ oghere, na ihe ndị ọzọ. Ekwesịrị ịgwọ ndị ọrụ Valve dịka ọnọdụ ndị akọwapụtara.
Oge nzipu: Jul-29-2022
