Chii chinonzi 2, 4 uye 6 mapoinzi mupombi mavharuvhu fittings? Oxygen valve, pombi vharafu, vharafu inopisa zvikonzero kuongorora
Unosiyanisa sei masaizi evharuvhu? Maminiti here, “mainches,” kana kuti “DN…”? Unoziva zvazvinoreva here?
Chokutanga pane zvose, ngatizivisei kwakabva "inch" :
inch (inch, yakapfupikiswa semu.), muchiDutch, chirevo chekutanga chigunwe, inchi kureba kwechigunwe, hongu, kureba kwechigunwe kwakasiyanawo.
Zuva harina kumbovira. Humambo hweBritain hwakanga hwakakura. Nyika yakanga ine simba uye ine izwi. Muzana ramakore rechi 14, King Edward II akazivisa "yakajairwa pamutemo inch". Maererano nemutemo, kureba kwezviyo zvitatu zvakakura zvegorosi mumutsara inchi imwe (inenge 25.4 mm).
Isu tinosvika padanho, kazhinji kuenda kuchitoro chehardware kunotenga vharafu kana pombi, mubatanidzwa, zvichingodaro, hatinzwisisi shamwari kutora samples kutenga zvakananga, anotonga kutsanangurwa kwakawanda kwezvakatemwa, kwemaminetsi mashoma kana masendimita mashoma. , chaizvoizvo ona vharafu yemvura uye pombi yejojo muviri kana yakanyorwa pazvigadziro zvekutakura, zvakadai se 1/2 ', 3/4', 1 ', DN15 uye zvichingodaro.
Sezvinoratidzwa pazasi: Mvura inopisa uye inotonhora yekurudyi-kona vharafu yekugeza chimbuzi, saizi DN15.
Vadikanwi shamwari, kana iwe uchida kunzwisisa uye kudzidza kutsanangurwa uye ukuru hwemavharuvhu aya, zvakakosha kuti urambe uchifunga zvinotevera hukama hwekutendeuka:
Basic formula conversion: 1 inch ≈25.4 mm =8 points (mapoinzi epfupi)
Saka: 1 inch = 1/8 '(mu) ≈3.175mm
2 inch = 1/4 '(inch)
4 inch = 1/2 '(inch)
6 inch = 3/4 '(mu)
(Nezvinangwa zvekudzidzira nemusoro, zvidimbu zvishoma zveinch zvinowanzowedzerwa ne8 kuti uwane zvibodzwa.)
Mufananidzo unotevera unoratidza hukama pakati pe "maminitsi" uye "mainji":
Muhupenyu, iyo inonyanya kushandiswa valve ndeye 1/2 '(4 valve), dzimwe nguva yakanyorwa seDN15, chaizvoizvo, zvinyorwa zvakafanana, asi chimiro chekunyora chakasiyana.
Saka isu tinowanzo kudaidza 4 mapoinzi uye 6 mapoinzi uye 1 inch vharafu yemvura kana pombi yemvura, 4 mapoinzi, 6 mapoinzi, 1 inch inoreva vharafu yemvura kana pombi yemvura dhayamita yeBritish system, zita rizere ndiBritish.
Sezvinoratidzwa pazasi: 1/2 inch ivharuvhu ye4 point (DN15) zita rekuti dhayamita gumi neshanu, dhayamita yeshinda inosvika 19mm.
Chikamu: mm
Sirika inofananidzwa inoratidzwa sepazasi:
Dzimwe nguva kunyange kana muviri wevharuvhu usina kunyorwa nezvakatsanangurwa, tinogona kushandisa mutongi kuyera zvakaringana kutsanangurwa kwevharuvhu, kazhinji 4 vharafu yeshinda yemukati kazhinji dhayamita inosvika 18 ~ 20mm, kana shinda yekunze inogona kuyerwa dhayamita yeshinda. , zvimwe chete.
Mufananidzo unotevera unoratidza pombi dzemichina yekuwachisa inowanzoshandiswa mumhuri:
Nhamba inotevera i3/4 ', inozivikanwawo se 6 vharafu (DN20), dhayamita yezita remakumi maviri, kazhinji inenge 24mm mukati medhayamita.
Chikamu: mm
Mufananidzo unotevera unoratidza nzira yekuyera nzira yekufungidzira 4 uye 6 point valve:
Kubva pane zviri pamusoro, vazhinji vadyidzani vanozovhiringika, kutsanangurwa kwevharuvhu DN kunoreva izvo, muchokwadi, DN vharafu yakatarwa DN20 izita rechiratidzo chedhayamita, zita rekuti dhayamita (inozivikanwawo sekureva kubuda>
Saka DN haisi iyo dhayamita yekunze kana dhayamita yemukati, asi iri padyo nedhayamita yemukati. Low pressure class, diki madziro ukobvu, DN isingasviki dhayamita yemukati; Kune yakakwira kirasi yekumanikidza, ukobvu hwemadziro hwakakura, uye DN yakakura kupfuura dhayamita yemukati. DN** Zita dhayamita, iro riri mumamilimita, asi dhayamita rezita ndiro saizi yezita, kwete saizi chaiyo ye.
Semuenzaniso, mugadziri wepombi kana vharafu anoverenga kuti pombi ine dhayamita yemukati ye102mm uye ukobvu hwemadziro hwe3mm inodiwa, uye dhayamita rekunze repombi i108mm. Maererano nemaitiro ekugadzirwa kwepombi yesimbi, kune pombi yakadaro chete. Muchiitiko ichi, pombi ine dhayamita yemukati ye102mm inofanirwa kuverengerwa sezita rekuti dhayamita yepedyo, ndiko kuti, dhizaini yevharuvhu ndeye DN100. Zviripachena saizi yezita ichave idiki pane yemukati dhayamita. Mune imwe nyaya, pombi ine dhayamita yekunze ye108mm ichiri kushandiswa. Pamusana pekumanikidzwa kwepamusoro, rusvingo rwemadziro runodiwa kuti ruve 6mm, saka dhayamita yemukati yepombi ndeye 96. Panguva ino, valve inoshandiswa ichiri DN100, uye hukuru hwezita hwakakura kudarika dhayamita yemukati yepombi yakavharwa. .
Nhamba inotevera 1 '(mu)DN25 vharafu, kazhinji isingadanwe 8 vharafu, dhayamita yezita i25, dhayamita yeshinda inenge 30mm, zvichingodaro:
Mufananidzo uri pazasi unoratidza 1.2 '(in.)DN32 vharafu ine dhayamita yezita re 32 uye yakarukwa dhayamita yemukati inosvika 39mm.
Mufananidzo unotevera unoratidza 1.5 '(in.)DN40 vharafu, dhayamita rezita i40, dhayamita rebepa rinoita 46mm
Pazasi pane 2 '(in.)DN50 vharafu ine dhayamita yezita re50 uye dhayamita yeshinda yemukati inosvika 56mm.
Iyi inotevera nhamba inoratidza hukama hunoenderana pakati pepipe inch uye saizi yezita:
Kuburikidza nekuongorora kwakadzama kwakatsanangurwa pamusoro, kudzidza kwakadzama, vadyidzani vadiki vanofanirwa kunzwisisa zvinozivikanwa mavharuvhu emvura yehupenyu, "mapoinzi" uye "mainch" ezvinoreva.
Oxygen valve, pombi vharafu, vharafu inopisa zvikonzero kuongorora
Oxygen valve, pombi vharafu, vharafu inopisa zvikonzero kuongorora
Nekuwedzera kwekushandiswa kweokisijeni, vashandisi vakakura veokisijeni vari kushandisa kuendesa pombi yeokisijeni. Nekuda kwepombi refu, kupararira kwakafara, pamwe nekukasira kuvhura kana kuvhara vharafu, zvichikonzera okisijeni pombi uye tsaona yekupisa kwevharuvhu inoitika nguva nenguva, saka, *** kuongororwa kwepombi yeokisijeni uye gonhi rinotonhora riripo njodzi dzakavanzika, njodzi, uye kutora matanho anoenderana kwakakosha.
Kutanga, akati wandei akajairika pombi yeokisijeni, kupisa kwevharuvhu kunokonzera kuongororwa
1. Ngura, guruva uye welding slag mukukwesha kwepombi nemadziro emukati epombi kana chiteshi chevharuvhu, zvichikonzera kupisa kwakanyanya.
Mamiriro ezvinhu aya ane hukama nemhando yetsvina, saizi yechidimbu uye kumhanya kwemhepo. Iron poda iri nyore kupisa neokisijeni, uye iyo yakatsetseka saizi yechikamu, inodzika nzvimbo yekubatidza; Iyo inokurumidza kukurumidza kukurumidza kwegasi, iyo inowedzera mukana wekupisa.
2. Kune girisi, rabha uye zvimwe zvinhu zvine pombi yakaderera paipi kana vharafu, iyo inobatidza pakupisa kwenzvimbo.
Nzvimbo yekupisa yezvizhinji zvinopisa muokisijeni (pamhepo yemhepo);
Zita remafuta Ignition point (℃)
Mafuta ekuzora 273 ~ 305
Vulcanized fiber mat 304
Rabha 130 ~ 170
Fluorine rabha 474
Yakabatanidzwa ne392 b
Teflon 507
3. Kupisa kwakanyanya kunogadzirwa neadiabatic compression kunokonzera zvinopisa kupisa
Semuenzaniso, pamberi pevharuvhu iri 15MPa, tembiricha iri 20 ℃, uye kumanikidza kuseri kwevharuvhu kuri 0.1MPa. Kana vharuvhu yakavhurwa nekukurumidza, tembiricha yeokisijeni mushure mevhavha inogona kusvika 553 ℃ zvinoenderana neadiabatic compression formula, iyo yasvika kana kupfuura nzvimbo yekupisa yezvimwe zvinhu.
4. Kudzikiswa kwenzvimbo yekupisa kwezvinhu zvinobvira mukumanikidza kwakanyanya oksijeni yakachena ndiko kukurudzira kupisa kweokisijeni pombi yevharupu.
Pombi yeokisijeni nevharuvhu mukumanikidza kwakachena okisijeni, njodzi yakakura kwazvo, bvunzo dzakaratidza kuti moto weiyo unogona kuenzana nehupamhi hwekumanikidza, izvo zvinounza kutyisidzira kukuru kune pombi yeokisijeni nevharuvhu.
Chechipiri, matanho ekudzivirira
1. Iyo yakagadzirwa ichaenderana nemitemo yakakodzera uye zviyero
Dhizaini yacho inofanirwa kuenderana ne1981 Ministry of Metallurgy yakapihwa neIron uye Steel Enterprise okisijeni pombi network yemitemo yakati wandei, pamwe neiyo okisijeni uye ine hukama gasi kuchengetedza tekinoroji mitemo (GB16912-1997), "Oxygen station dhizaini kodhi" (GB50030- 91) nemimwe mirau uye zviyero.
(1) Kuyerera kukuru kweokisijeni mupombi yesimbi yekabhoni inofanira kuenderana netafura inotevera.
Kuyerera kukuru kweokisijeni mupombi yesimbi kabhoni:
Kumanikidza kushanda (MPa) 0.1 0.1 ~ 0.6 0.6 ~ 1.6 1.6 ~ 3.0
Mwero wekuyerera (m/s) 20, 13, 10, 8
(2) Kuti udzivise moto, chikamu chemhangura base alloy kana simbi isina tsvina pombi ine urefu husingasviki 5 nguva yedhayamita yepombi uye isingasviki 1.5m inofanira kubatanidzwa kuseri kwevharuvhu yeokisijeni.
(3) Gokora uye musoro webifurcation unofanirwa kuiswa mashoma sezvinobvira mupombi yeokisijeni. Gokora repombi yeokisijeni ine simba rekushanda rakakwirira kudarika 0.1MPa inofanira kugadzirwa nemhando yevharuvhu yakadhindwa. Mafambiro emhepo emusoro webifurcation achave 45 kusvika 60 angles kubva kwakananga kumhepo huru.
(4) Mubutt welding ye concave-convex flange, copper welding wire inoshandiswa seO-ring, inova nzira yakavimbika yekuisa chisimbiso yeokisijeni flange ine moto.
(5) Iyo pombi yeokisijeni inofanira kunge iine yakanaka conductive mudziyo, iyo yekumisa pasi inofanira kunge isingasviki gumi, kupikisa pakati pemaflange kunofanirwa kunge kuri pasi pe0.03.
(6) Kupera kwepombi huru yeokisijeni muwekishopu kunofanirwa kuwedzerwa nepombi yekuburitsa kufambisa kucheneswa nekutsiviwa kwepombi yeokisijeni. Pamberi pepombi refu yeokisijeni isati yapinda muvharuvhu inoronga mumusangano, sefa inofanira kuiswa.
2. Installation Precautions
(1) zvikamu zvese zvinosangana neokisijeni zvinofanirwa kuderedzwa zvakanyanya, kuderedzwa nemhepo yakaoma kana nitrogen isina mafuta.
(2) Welding ichave argon arc welding kana arc welding.
3. Kungwarira paKushanda
(1) Kana uchibatidza nekudzima vharuvhu yeokisijeni, inofanira kuitwa zvishoma nezvishoma. Mushandi anofanira kumira padivi pevhavha uye oivhura kamwe chete panzvimbo.
(2) Zvinorambidzwa zvachose kushandisa okisijeni kukwesha pombi kana kushandisa oxygen kuyedza kuvuza uye kudzvanywa.
(3) Kuitwa kweiyo oparesheni tikiti system, pamberi pekushanda kwechinangwa, nzira, mamiriro ekuita tsananguro yakadzama uye zvigadziro.
(4) Manual okisijeni mavharuvhu ane dhayamita yakakura kupfuura 70mm inobvumirwa kushanda chete kana mutsauko wepakati pakati pemberi uye kumashure kwevhavha unoderedzwa kusvika pasi pe0.3MPa.
4. Kuchengetedza kwekuchengetedza
(1) Pombi yeokisijeni inofanira kugara ichiongororwa uye kuchengetedzwa, kubviswa ngura nekupendwa, makore matatu kusvika mashanu ega ega.
(2) Ivhavha yekudzivirira uye geji yekumanikidza papombi inofanira kuongororwa nguva dzose, kamwe chete pagore.
(3) Kuvandudza chigadziro chepasi.
(4) Pamberi pebasa rinopisa, kutsiva uye kuchenesa kunofanira kuitwa. Kana iyo okisijeni yemukati mumhepo yakavhuvhuta iri 18% ~ 23%, inokodzera.
(5) Valve, flange, gasket uye pombi, kusarudzwa kwepombi yakakodzera kunofanirwa kuenderana ne "Oxygen uye yakabatana gasi kuchengetedza tekinoroji mitemo" (GB16912-1997) zvinoenderana.
(6) Gadzira mafaira ehunyanzvi, kushanda kwechitima, kugadzirisa uye kugadzirisa vashandi.
5. Mamwe matanho ekuchengetedza
(1) Kuvandudza kukosha kwekuvaka, kugadzirisa uye kushanda kwevashandi kune kuchengeteka.
(2) kunatsiridza kusvinurira kwevashandi vemaneja.
(3) Kusimudza mwero wesainzi uye tekinoroji.
(4) Ramba uchivandudza chirongwa chekuunza okisijeni.
Mhedziso:
Chikonzero nei vharuvhu yegedhi ichirambidzwa imhaka yekuti chisimbiso chevhavhavha yegedhi mukufamba kwakabatana (kureva kuti, switch yevhavha) ichakonzera kukuvadzwa kweabrasion nekuda kwekupokana, kana yakuvadzwa, pane hupfu hwesimbi kubva pachisimbiso chepamusoro. , zvimedu zvakanaka zvakadai zvehupfu hwesimbi zviri nyore kupisa, iyi ndiyo ngozi chaiyo.
Muchokwadi, pombi yeokisijeni inorambidzwa kuvhavha yegedhi, mamwe mavharuvhu ekumira ane tsaona, nzvimbo yekuisa chisimbiso yevhavha yekumisa ichakuvadzwa, sezvingangoita kuve nengozi, ruzivo rwemabhizinesi mazhinji ndechekuti pombi yeokisijeni yese inoshandisa copper alloy valve. , kwete carbon steel, Stainless steel valve.
Copper alloy valve ine zvakanakira simba rakasimba remagetsi, kupfeka kusagadzikana, kuchengetedzwa kwakanaka (hakuburitse magetsi akamira), saka chikonzero chaicho ndechekuti chisimbiso chepamusoro chevhavha yegedhi chiri nyore kupfeka uye kugadzira simbi ndiyo inonyanya kukonzera, sezvo. nokuti kuderera kwekuisa chisimbiso haisiriyo kiyi.
Muchokwadi gedhi reokisijeni pombi harishandiswe setsaona, rinowanzoonekwa pamativi ese evhavha yekumanikidza musiyano yakakura, vharafu inovhura nekukurumidza, tsaona dzakawanda dzinoratidzawo kuti iyo ignition sosi uye mafuta ndiyo inokonzeresa magumo. vharafu yegedhi ingori nzira yekudzora mafuta, uye nguva dzose chinangwa che ngura, degreasing, mafuta akarambidzwa zvose zvakafanana. Kana iri yekudzora kweyero yekuyerera, ita basa rakanaka re electrostatic grounding ndiko kubvisa kwaibva moto. Pachako funga kuti vharafu zvinhu zvinhu, pamusoro hydrogen mutopota uyewo kuoneka matambudziko akafanana, mashoko matsva ane mashoko achadzima gedhi rabviswa, isungano, kiyi kuwana chikonzero, makambani akawanda kungoti pasinei kushanda kumanikidzwa, vanomanikidzwa. nemhangura alloy valve, asi sezvo dzimwe tsaona dzinoitika, saka kudzora moto nemafuta, kunyatsogadzirisa kuchengetedza, Chinokosha ndechekusimbisa tambo yekuchengetedza. - Yakapihwa neSanjing Valve Technology Dhipatimendi
Nguva yekutumira: Oct-28-2022
