Nhanganyaya kune Pressure Seal mavharuvhu
Pressure Seal Valves
Kuvakwa kwekusimbisa chisimbiso kunogamuchirwa kuMavharuvhu ekumanikidza kwakanyanya sevhisi, kazhinji inodarika pamusoro pe170 bar. Chinhu chakasarudzika pamusoro pekumanikidza chisimbiso Bonnet ndechekuti iyo muviri-Bonnet majoini majoini anonatsiridza sezvo yemukati kumanikidza muValve kunowedzera, zvichienzaniswa nezvimwe zvivakwa uko kuwedzera kwekumanikidza kwemukati kunowanzo kuumba kuvuza mumuviri-Bonnet joint.
Pressure seal design
- A/B - Bonet tsika yekukwira kumusoro kana pasi sezvo kudzvanywa kunochinja
- C - System kudzvanywa
- D -Kuisa chisimbiso masimba nekuda kwekumanikidzwa
Kuwedzera kwesimba remukati, rinowedzera simba rekuvhara. Kubvisa zviri nyore kunogoneka nekudonhedza gungano reBonnet mugomba remuviri uye nekudzinga marin'i mana-segmental ekusundidzira pachishandiswa pini yekusundidzira.
Tichivimba nemisimboti yakapusa yekugadzira, dhizaini chisimbiso Mavhavha aratidza kugona kwavo kubata zviri kuramba zvichidikanwa fossil uye yakasanganiswa-kutenderera mhepo yekuzviparadzanisa nevamwe, sezvo vagadziri vanoramba vachisundidzira boiler, HRSG, uye pombi system kudzvanywa / tembiricha mahamvuropu. Pressure seal Mavharuvhu anowanzo kuwanikwa muhukuru kubva pa2 inches kusvika 24 inches uye ASME B16.34 pressure classes kubva pa#600 kusvika #2500, kunyangwe vamwe vanogadzira vachigona kugonesa kudiwa kwemadhayamita akakura uye zviyero zvepamusoro zvezvishandiso zvakakosha.
Pressure seal Mavharuvhu anowanikwa mune zvakawanda zvinhu zvakaita seA105 forged uye Gr.WCB cast, alloy F22 forged uye Gr.WC9 cast; F11 forged and Gr.WC6 cast, austenitic stainless F316 forged and Gr.CF8M cast; kweanopfuura 500°C, F316H akagadzirwa uye akakodzera austenitic akakanda mamakisi.
Iyo yekumanikidza chisimbiso dhizaini pfungwa inogona kuteedzerwa kumashure kusvika pakati pemakore ekuma1900, apo, takatarisana nekuwedzera kumanikidza uye tembiricha (kunyanya mumashandisirwo emagetsi), vagadziri vemavharuvhu vakatanga kugadzira dzimwe nzira dzechinyakare bhaudhi-Bonnet nzira yekuisa chisimbiso chemuviri / Bonnet chisungo. . Pamwe chete nekupa mwero wepamusoro wekumanikidza muganho wekuisa chisimbiso kutendeseka, mazhinji ekumanikidza chisimbiso mavharuvhu magadzirirwo airema zvishoma pane avo akabhaurirwa Bonnet Valve mamwe.
Bolted Bonnets vs. Pressure Seals
Kuti tinzwisise zviri nani iyo yekumanikidza chisimbiso dhizaini dhizaini, ngatisiyanise iyo yemuviri-ku-Bonnet yekuisa chisimbiso pakati pemabhoneti akavharidzirwa uye zvisimbiso zvekumanikidza.Mufananidzo 1inoratidza yakajairika Bolted Bonnet valve. Iyo flange yemuviri uye Bonnet flange inobatanidzwa nematehwe nenzungu, ine gasket yeakakodzera dhizaini / zvinhu zvakaiswa pakati pezviso zveflange kuti zvigone kuvharwa. Matudhi / nzungu / mabhaudhi anosimbiswa kune akatemerwa torque mune pateni inotsanangurwa nemugadziri kuti inokanganisa kunyatsoisa chisimbiso. Nekudaro, sezvo kudzvanywa kwehurongwa kunowedzera, mukana wekudonha kuburikidza nemuviri / Bonnet joint inowedzerawo.
Iye zvino ngatitarisei kune iyo yekumanikidza chisimbiso yekubatanidza yakatsanangurwa mukatiMufananidzo 2Cherechedza misiyano mumutumbi / Bonnet majoini magadzirirwo. Madhizaini mazhinji ekumanikidza chisimbiso anosanganisira "Bonnet kutora-up mabhoti" kudhonzera Bonnet kumusoro uye kuvharira kupesana nekumanikidza chisimbiso gasket. Izvi zvinogadzira chisimbiso pakati pegasket uye dia yemukati (ID) yemuviri wevharuvhu.
Mhete yakakamurwa inosimudzira inochengetedza mutoro. Runako rwekumanikidza chisimbiso dhizaini nderekuti sekumanikidza kwehurongwa kunowedzera, ndizvo zvinoita mutoro paBonnet uye, zvinoenderana, iyo yekumanikidza chisimbiso gasket. Naizvozvo, mukumanikidza chisimbiso Mavhavha, sezvo system yekumanikidza inowedzera, mukana wekudonha kuburikidza nemuviri / Bonnet joint inoderera.
Iyi nzira yekugadzira ine mabhenefiti akasiyana pamusoro pemabhaudhi maBonnet Mavharuvhu muutsi mukuru, mvura yekudyisa, turbine bypass, uye mamwe masisitimu emagetsi ekudyara anoda mavharuvhu anogona kubata zvipingamupinyi zvirimo mukumanikidza kwakanyanya uye tembiricha yekushandisa.
Asi nekufamba kwemakore, sezvo kumanikidza kwekushanda/tembiricha yakawedzera, uye nekuuya kwezvirimwa zvinokwira kumusoro, iyi dzvinyiriro yesystem yenguva pfupi yaibatsira mukuisa chisimbiso yakatambawo nyonganyonga nekumanikidza chisimbiso chekubatana.
Pressure Seal Gaskets
Chimwe chezvakakosha zvinosanganisirwa mukuisa chisimbiso chekumanikidza chisimbiso Valve ndiyo gasket pachayo. Early pressure seal gaskets akagadzirwa kubva kusimbi kana simbi yakapfava. Aya magaskets akazobva aiswa sirivheri kuti atore mukana weiyo yakapfava plating zvinhu kugona kupa chisimbiso chakasimba. Nekuda kwekumanikidza kwakashandiswa panguva yeValve's hydrotest, "set" (kana deformation ye gasket profile) pakati peBonnet uye gasket yakatorwa. Nekuda kweiyo yekuzvarwa yeBonnet yekutora-up bhaudhi uye yekumanikidza chisimbiso chisimbiso chakabatana elasticity, mukana wekuti Bonnet ifambe nekupwanya iyo "seti" kana ichiiswa kune system kudzvanywa inowedzera / kuderera yaivepo, nemuviri / Bonnet majoini anodonha mhedzisiro.
Dambudziko iri rinogona kurambwa nekushandisa tsika ye "kupisa kupisa" mabhoti ekutora Bonnet mushure mekumanikidzwa kwesystem uye kuenzana kwetembiricha, asi zvaida muridzi/vashandi vekuchengetedza vashandi kuti vadaro mushure mekutanga kwechirimwa. Kana tsika iyi isina kutevedzerwa, mukana wekudonha kuburikidza nemuviri / Bonnet yekubatanidza yaivepo, iyo inogona kukuvadza iyo yekumanikidza chisimbiso gasket, iyo Bonnet uye / kana ID yeValve muviri, pamwe nekugadzira matambudziko ekuwedzera uye kusashanda izvo kudonha kwemhepo kunogona kuve nekushanda kwechirimwa. Nekuda kweizvozvo, vagadziri veValve vakatora matanho akati wandei kugadzirisa dambudziko iri.
Mufananidzo 2 unoratidza musanganiswa wemabhaudhi ekutora-akaremerwa eBonnet (nekudaro kuchengetedza mutoro unogara uri pa gasket, kuderedza mukana wekudonha) uye kutsiva simbi/simbi yakapfava, silverplated pressure seal gasket neimwe yakagadzirwa nekufa- yakagadzira graphite. Iyo gasket dhizaini inoratidzwa muMufananidzo 3 inogona kuiswa mukumanikidza chisimbiso Mavharuvhu aimbopihwa neyechinyakare mhando gasket. Kuuya kwemagraphite gaskets kwakawedzera kusimbisa kuvimbika uye kuita kweiyo yekumanikidza chisimbiso Valve mune akawanda maapplication uye kunyangwe zuva nezuva kutanga/kumisa kushanda kutenderera.
Kunyangwe vagadziri vazhinji vachiri kukurudzira "kupisa kupisa," mukana wekudonha kana izvi zvikasaitwa unodzikira zvakanyanya. Nzvimbo dzekugara mukumanikidza chisimbiso Mavharuvhu, senge mune akawanda emagetsi chirimwa Mavhavha, anoiswa pasi, nekuenzanisa kutaura, mitoro yekugara yakakwira. Kutendeseka kwechigaro kunochengetwa sebasa rekushivirira machining akasimba pazvikamu zvechikamu, nzira yekupa inodiwa torque kuvhura / kuvhara sebasa regiya kana actuation, uye kusarudzwa / kushandiswa kwezvinhu zvakakodzera zvekugara.
Cobalt, nickel, uye iron-based hardfacing alloys anoshandiswa kunyatsopfeka kusamira kwewedge/disiki uye chigaro mhete dzezvigaro. Inonyanya kushandiswa ndeye CoCr-A (semuenzaniso, Stellite) zvinhu. Zvinhu izvi zvinoshandiswa nemaitiro akasiyana-siyana, anosanganisira akavharidzirwa simbi arc, gasi simbi arc, gasi tungsten arc, uye plasma (yakatamiswa) arc. Mazhinji anodzvanya anosimbisa Globe Mavharuvhu akagadzirwa aine zvigaro zvakaomesesa, nepo Gedhi Valve uye Cheki Mavharuvhu anowanzo ane mhete dzechigaro dzakaomarara dzakasungirirwa mumuviri weValve.
Valving terminology
Kana iwe wakabata nevhavha kwehurefu hwenguva, iwe ungangove waona Vagadziri veValve havana kunyanya kugadzira nematemu uye mitauro yemuno inoshandiswa mubhizinesi. Tora semuenzaniso, "mabhaudhi eBonnet mavharuvhu." Muviri unosungirirwa kuBonnet kuchengetedza kutendeseka kwehurongwa. Kune "kumanikidza chisimbiso Mavhavha," system kudzvanywa kunobatsira yekuisa chisimbiso. Kune "mira / Tarisa Mavharuvhu," kana tsinde yeValve iri munzvimbo yakavharwa, kuyerera kunomiswa nemichina, asi kana iri munzvimbo yakavhurika, disc yakasununguka kuita kuti itarise kudzoreredzwa kwekuyerera. Iyi nheyo imwechete inoshanda kune mamwe mazwi anoshandiswa pakugadzira, pamwe nemhando dzeValve uye zvikamu zvadzo.
Nguva yekutumira: May-11-2020