Isingeniso se-Globe valves

Ama-valve e-globe

Ama-valve e-Globe iyi-valve enyakazayo ewumugqa futhi yakhelwe ngokuyinhloko ukuthi ime, iqale futhi ilawule ukugeleza. Idiski yevalvu yeGlobe ingasuswa ngokuphelele ku-flowpath noma ingavala ngokuphelele indlela egelezayo.

Ama-valve e-Globe avamile angase asetshenziselwe ukuhlukanisa abantu kanye nezinsiza zokudonsa umoya. Nakuba la mavalvu ebonisa ukwehla kwengcindezi ephakeme kancane kune-straight=through valve (isb., isango, ipulaki, ibhola, njll.), angasetshenziswa lapho ukucindezela kwehle ngevalvu kungesona isici esilawulayo.

Ngenxa yokuthi yonke ingcindezi yesistimu ekhishwa kudiski idluliselwa esiqwini se-valve, umkhawulo kasayizi osebenzayo walawa ma-valve yi-NPS 12 (DN 300). Amavalvu eglobhu amakhulu kune-NPS 12 (DN 300) ahlukile kunomthetho. Ama-valve amakhulu angadinga ukuthi kusetshenziswe amandla amakhulu esiqwini ukuze kuvulwe noma kuvalwe i-valve ngaphansi kwengcindezi. Amavalvu embulunga amasayizi afika ku-NPS 48 (DN 1200) enziwe futhi asetshenziswa.

Ama-valve e-globe asetshenziswa kakhulu ukulawula ukugeleza. Ububanzi bokulawula ukugeleza, ukwehla kwengcindezi, kanye nomsebenzi kufanele kucatshangelwe ekwakhiweni kwevalvu ukuze kugwenywe ukwehluleka ngaphambi kwesikhathi kanye nokuqinisekisa isevisi eyanelisayo. Amavalvu angaphansi kwensizakalo yokwehluka kwe-pressure-throttling ephezulu adinga ukunqunywa kwamavalvu okuklanywe ngokukhethekile.

Ngokujwayelekile ingcindezi enkulu yokuhlukanisa phakathi kwediski ye-valve akufanele idlule amaphesenti angu-20 okucindezela okuphezulu komfula noma i-200 psi (1380 kPa), noma yikuphi okuncane. Amavavu anombala okhethekile angase akhelwe izinhlelo zokusebenza ezeqa le mikhawulo yengcindezi ehlukile.

I-Cast steel globe valve yemboni kawoyela negesi

Imiklamo yomzimba yama-valve e-Globe

Kunemiklamo emithathu eyinhloko yomzimba yamavalvu e-Globe, okungukuthi: Iphethini yeTee noma i-Z-body, Iphethini ye-Angle ne-Wye Pattern noma umzimba we-Y-body.

I-Tee Pattern Globe valve designiwuhlobo lomzimba oluvame kakhulu, olune-diaphragm emise okuka-Z. Ukusethwa okuvundlile kwesihlalo kuvumela isiqu nediski ukuthi zihambe ngokuqondana nomugqa ovundlile. Lo mklamo une-coefficient ephansi kakhulu yokugeleza kanye nokwehla kwengcindezi ephezulu. Asetshenziswa ezinsizeni zokudonsa kanzima, njengasemigqeni yokudlula eduze kwevalvu yokulawula. Ama-valve e-Globe yephethini ye-Tee angasetshenziswa ezinhlelweni lapho ukwehla kwengcindezi kungeyona into ekhathazayo futhi kudingeka ukuthinta.

 

 

Ama-valve e-Angle Pattern Globe designiwukuguqulwa kwevalvu eyisisekelo ye-Tee Pattern Globe. Iziphetho zale valve yeGlobe zise-engeli engu-90 degrees, futhi ukugeleza koketshezi kwenzeka ngokujika okukodwa okungama-degree angu-90. Ane-coefficient ephansi kancane yokugeleza kunamavalvu e-Wye-pattern Globe. Asetshenziswa ezinhlelweni ezinezikhathi zokugeleza kwe-pulsating ngenxa yamandla azo wokuphatha umthelela we-slugging walolu hlobo lokugeleza.

 

 

I-Wye Pattern Globe valve design, ingenye yokwehla kwengcindezi ephezulu, etholakala kumavalvu e-Globe. Isihlalo nesiqu ku-engeli cishe ngamadigri angu-45, okunikeza indlela eqondile yokugeleza ekuvuleni okugcwele futhi kunikeza ukumelana okuncane ukuze kugeleze. Angaqhekeka avuleke isikhathi eside ngaphandle kokuguguleka okukhulu. Zisetshenziselwa kakhulu ukugubha ngesikhathi sokusebenza kwesizini noma ukuqalisa. Angafakwa induku ukuze akhiphe udoti lapho esetshenziswa emigqeni yokudonsa amanzi evamise ukuvalwa.

Idiski kanye nesihlalo kanye ne-Stem of Globe valves

Idiski:Imiklamo yediski evame kakhulu yamavalvu eGlobe yilezi: idiski yebhola, idiski yokuqamba kanye nediski yepulaki. Idizayini yediski yebhola isetshenziswa ngokuyinhloko kungcindezi ephansi kanye nezinhlelo zokushisa eziphansi. Iyakwazi ukugeleza, kodwa empeleni isetshenziselwa ukumisa futhi iqale ukugeleza.

Idizayini yediski yokuhlanganisa isebenzisa indandatho yokufaka eqinile, engeyona eyensimbi kudiski, eqinisekisa ukuvala okuqinile.

Idizayini ye-Plug disk inikeza i-throttling engcono kunebhola noma imiklamo yokuqamba. Atholakala ngemiklamo eminingi ehlukene futhi wonke made futhi tapered.

Isihlalo:Izihlalo zamavalvu embulunga yonke zingahlanganiswa noma zifakwe emzimbeni wevalvu. Ama-valve amaningi e-Globe anezihlalo ezingemuva ngaphakathi kwe-Bonnet. Izihlalo ezingemuva zihlinzeka ngophawu phakathi kwesiqu ne-Bonnet futhi zivimbela ukucindezela kwesistimu ukuthi kwakheke ngokumelene ne-valve pakking, lapho i-valve ivuleke ngokugcwele. Izihlalo ezingemuva zivame ukusetshenziswa kuma-valve e-Globe.

Isiqu:Amavalvu eglobhu asebenzisa izindlela ezimbili zokuxhuma idiski nesiqu: i-T-slot kanye nokwakhiwa kwamantongomane ediski. Esakhiweni se-T-slot, idiski islayida phezu kwesiqu, kuyilapho edizayini yentongomane yediski, idiski igoqwe esiqwini.

Ukwakhiwa kwe-valve yeGlobe

Ama-valve eglobhu ngokuvamile aneziqu ezikhuphukayo, futhi osayizi abakhulu bangaphandle kokwakhiwa kwe-screw-and-joke. Izingxenye ze-valve ye-Globe ziyefana nalezo ze-valve yesango. Lolu hlobo lwevalvu lunezihlalo endizeni ehambisanayo noma ezithambekele emgqeni wokugeleza.

Ukugcinwa kwama-valve e-Globe kulula, njengoba ama-disc nezihlalo zilungiswa noma zishintshwa kalula. Lokhu kwenza ama-valve e-Globe afanelekele ikakhulukazi izinsiza ezidinga ukunakekelwa njalo. Lapho ama-valve esebenza ngesandla, uhambo olufushane lwediski lunikeza izinzuzo ekongeni isikhathi sika-opharetha, ikakhulukazi uma ama-valve elungiswa njalo.

Ukwehluka okuyinhloko kumklamo we-Globe-valve kusezinhlobo zamadiski asetshenziswayo. Ama-disc ohlobo lwe-plug anokumiswa okude, okucijile okunendawo ene-bearing ebanzi. Lolu hlobo lwesihlalo lunikeza ukumelana okukhulu nesenzo sokuguguleka somfudlana owuketshezi. Ku-disc yokuqamba, i-disc inobuso obuyisicaba obucindezelwe ngokuvula isihlalo njengekepisi. Lolu hlobo lokuhlelwa kwesihlalo alufaneleki njengokucindezela okuphezulu komehluko.

Kumavalvu e-cast-iron Globe, i-disc nezindandatho zokuhlala ngokuvamile zenziwe ngethusi. Kumavalvu ensimbi-Globe lokushisa afinyelela ku-750°F (399°C), ukunqunywa ngokuvamile kwenziwa ngensimbi engagqwali ngakho-ke kunikeza ukumelana nokubamba nokubamba. Ubuso bokukhwelana ngokuvamile buphathwa ngokushisa ukuze kutholwe amanani obulukhuni obuhlukile. Ezinye izinto zokunquma, kufaka phakathi ama-alloys asekelwe ku-cobalt, nazo ziyasetshenziswa.

Indawo yokuhlala iphansi ukuze kuqinisekiswe ukuthintana okugcwele lapho i-valve ivaliwe. Kumakilasi okucindezela okuphansi, ukuqondanisa kugcinwa i-disc locknut ende. Ukuze uthole izingcindezi eziphakeme, iziqondiso zediski ziphonswa emzimbeni we-valve. I-disc iphenduka ngokukhululekile esiqwini ukuvimbela ukugabha kobuso bediski kanye neringi yesihlalo. Isiqu sithwala ngokumelene ne-thrust plate eqinile, eqeda ukugabha kwesiqu kanye nediski lapho kuxhunywana khona.

Ukugeleza kwe-Globe valves

Kuzinhlelo zokusebenza ezinokushisa okuphansi, ama-valve e-Globe avame ukufakwa ukuze ingcindezi ibe ngaphansi kwediski. Lokhu kunomthelela ekusebenzeni okulula futhi kusiza ukuvikela ukupakisha.

Kuzinhlelo zokusebenza ezinesevisi yesitimu sokushisa okuphezulu, ama-valve e-Globe afakwa ukuze ingcindezi ibe ngaphezu kwediski. Uma kungenjalo, isiqu sizoncipha lapho sipholisa futhi sivame ukuphakamisa idiski esihlalweni.

Izinzuzo kanye Nemibi yama-valve e-Globe

Izinzuzo:

• Ikhono elihle lokuvala
• Ikhono elimaphakathi ukuya kokuhle lokudonsa umoya
• I-stroke emfushane (uma iqhathaniswa ne-valve yesango)
• Itholakala ngamaphethini we-tee, we-wye, nama-engeli, ngalinye linikeza amakhono ahlukile
• Kulula ukwenza umshini noma ukuvuselela izihlalo
• Nge-disc enganamathiselwe esiqwini, i-valve ingasetshenziswa njenge-valve yokuhlola ukumisa

Ububi:

• Ukwehla kwengcindezi ephezulu (uma kuqhathaniswa ne-valve yesango)
• Kudinga amandla amakhulu noma i-actuator enkulu ukuze kuhlaliswe i-valve (ngokucindezela ngaphansi kwesihlalo)
• I-throttling igeleza ngaphansi kwesihlalo futhi i-shutoff igeleza phezu kwesihlalo

Izicelo Ezijwayelekile zamavalvu eGlobe

Okulandelayo ezinye zezinhlelo ezijwayelekile zama-valve e-Globe:

• Amasistimu amanzi okupholisa lapho ukugeleza kudinga ukulawulwa
• Isistimu kawoyela wesibaseli lapho ukugeleza kulawulwa khona futhi ukuvuza kubalulekile
• Amapayipi aphakeme kanye namadrayini aphansi lapho ukuvuza nokuphepha kuyizinto ezicatshangelwayo
• Amanzi okuphakelayo, okuphakelayo kwamakhemikhali, ukukhishwa komoya we-condenser, namasistimu wokudonsa amanzi
• Izintuba zokubilisa kanye namadrayini, izintuba zesitimu ezinkulu namadrayini, namapayipi okushisa
• Ama-turbine seals namadrain
• I-Turbine lube oil system nokunye