Isingeniso
Ezweni lamandla awuketshezi, imishini esindayo ivame ukubamba konke ukunaka. Amasilinda amakhulu kahydraulic, amaphampu ahlokomayo, namavalvu amakhulu okulawula isiqondiso abusa indawo yezindawo zokwakha, izimboni ezikhiqizayo, nezinkundla zezolimo. Nokho, amaqhawe eqiniso angacushiwe alawa -amasistimu okucindezela okuphezulu ayizingxenye ezincane eziwagcina ehlangene. Ngaphandle kwezixhumi ezifanele, amandla amakhulu akhiqizwa amaphampu asebenza ngogesi aba yinto engenamsebenzi, noma okubi nakakhulu, abe yingozi ngendlela emangalisayo.
Ukukhetha ukufakwa okufanele kwe-hydraulic kungesinye sezinqumo ezibucayi kakhulu uchwepheshe, unjiniyela, noma umnikazi wemishini angayenza. Uchungechunge olulodwa olungafani noma into elinganiselwe ingabangela ukwehluleka okuyinhlekelele, okuholela ekulahlekeni koketshezi olubizayo, ukungcoliswa kwemvelo, ukulimala okukhulu kwemishini, kanye nezingozi ezinkulu zokulimala komsebenzisi. Ngenxa yokuthi imakethe igcwele inqwaba yamazinga ahlukene entambo, osayizi, nezindlela zokuvala, ukuthola okufana ncamashi kungase kube nzima kwabaqalayo.
Lo mhlahlandlela ophelele uklanyelwe ukuqeda inqubo yokukhetha. Ngokuphula imigomo ewumongo yemishini ewuketshezi, ukuhlonza intambo, nesayensi yezinto ezibonakalayo, lesi sihloko sizokunikeza ulwazi oluyisisekelo oludingekayo ukuze ukhethe izingxenye ezifanele zesistimu yakho ngokuzethemba nangokuphephile.
Ukuqonda Okuyisisekelo: Kuyini Ukufakwa Kwe-Hydraulic Futhi Kungani Kubalulekile?
Ngendlela elula ngayo, i-hydraulic fitting iyingxenye esetshenziselwa ukuxhuma ipayipi, ipayipi, noma ishubhu edonsa amanzi empompini, ivalvu, isilinda, noma enye ingxenye yamandla oketshezi. Inhloso eyinhloko yanoma yikuphi ukulinganisa kukabili: kufanele iqukathe{1}uketshezi lwengcindezi ephezulu ngaphakathi kwesistimu ngaphandle kokuvuza, futhi kufanele inikeze uxhumano oluvikelekile lwesakhiwo olumelana namandla emishini akhiqizwa ngesikhathi sokusebenza.
Uma ukulinganisa kwehluleka ukwenza le misebenzi, imiphumela ayivamile ukuba mincane. Amasistimu we-hydraulic asebenza ngokujwayelekile ezicindezelweni ezisuka ku-1,000 kuye ngaphezulu kwamaphawundi ayi-10,000 iyintshi yesikwele (psi). Kulezi zingcindezi, ukuvuza kwe-pinhole kungakhulula inkungu ene-athomu ephezulu kawoyela we-hydraulic ovuthayo, okudala ingozi enkulu yomlilo. Ngaphezu kwalokho, ukufaka okuxekethile kungaphephuka ngokuphelele, kubangele ukuthi amapayipi ashaye ngamandla futhi imishini yehlise imithwalo ngaphandle kwesixwayiso.
Ukuze ugweme lezi zimo, kuyasiza ukuqonda ukuthi ukulinganisa akuvamile ukuba kube ucezu olulodwa lwensimbi. Ukuhlanganiswa okujwayelekile kuvame ukubandakanya indikimba efanelekile, ehlanganisa imicu eyinhloko nezindawo zokuvala; inati, elinikeza amandla omshini adingekayo ukuze acindezele uphawu; futhi ngezinye izikhathi umkhono noma i-ferrule, eluma noma ibambe ishubhu ukuqinisekisa ukubamba unomphela. Ukubona ukuthi lezi zingxenye zisebenzisana kanjani kuyisinyathelo sakho sokuqala ekuqondeni ukwakheka kwesistimu yoketshezi.
Isinyathelo 1: Ukuhlonza Imibandela Emine Yokukhetha Okubalulekile (Indlela Ye-STAMP)
Uma ochwepheshe besondela kusistimu ye-hydraulic ukuze bakhethe noma bashintshe izingxenye, bathembela ku-acronym yesikhathi-ehloliwe eyaziwa ngokuthi indlela ye-STAMP. Nakuba i-STAMP ngokwesiko imele usayizi, izinga lokushisa, isicelo, impahla, kanye nengcindezi, sizobheka izigaba ezine zokuqala lapha ukuze sisungule isisekelo sethu.
Usayizi
Usayizi uwumthwalo ongokoqobo kakhulu ozobhekana nawo. Ukulinganisa okuncane kakhulu kuzokhawulela ukugeleza koketshezi, kubangele ukwanda okukhulu kwesivinini soketshezi, ukungqubuzana, nokukhiqizwa kokushisa. Lokhu kwakhiwa okushisayo kwehlisa uwoyela we-hydraulic futhi kucekele phansi izimpawu zangaphakathi. Ngokuphambene, isilinganisi esikhulu kakhulu sidala ukwehla kwengcindezi kungazelelwe futhi singase singangeni phakathi kwezingqinamba ezibonakalayo zesakhiwo somshini. Kumelwe ulinganise kokubili Ububanzi Bangaphakathi (ID) bepayipi noma ishubhu ukuze uqinisekise umthamo ofanele wokugeleza, kanye Nobubanzi Bangaphandle (OD) bezintambo ukuze uqinisekise ukuxhumana okungokomzimba okufanele.
Izinga lokushisa
Amasistimu we-hydraulic akhiqiza inani elikhulu lokushisa kwangaphakathi, kodwa futhi angaphansi kwezimo zemvelo zangaphandle. Kufanele ucabangele amaphrofayli amabili okushisa ahlukene lapho ukhetha ukufakwa kwe-hydraulic: izinga lokushisa lemidiya (uketshezi olugijima ngaphakathi) kanye nezinga lokushisa elizungezile (umoya ongaphandle). Amakhaza ashubisa umnkantsha angenza izinsimbi zibe brittle futhi kubangele amasongo e-elastomeric O-aqhekeke. Ukushisa okudlulele kungabangela ukunwebeka kwensimbi, kwehlise itorque esebenzayo yelunga futhi kubangele O{4}}amasongo ukuthi ancibilike noma aqine.
Isicelo
Lokhu kufaneleka kuzokuchitha kuphi ukuphila kwakho kokusebenza? Isistimu ye-hydraulic efakwe ku-offshore oil rig ibhekana nokuchayeka njalo kusifutho sikasawoti kanye nokuswakama okubolayo, okudinga insimbi{0}}yezinga eliphezulu. Isistimu eyakhelwe emshinini wokubumba umjovo wepulasitiki waphansi wemboni ingase ibhekane nengcindezi encane yokugqwala kodwa ibhekane nezigidi zemijikelezo yokudlidliza ephezulu{2}}isonto ngalinye. Ukudlidliza kungabangela uxhumo oluluchungechunge ukuthi luhlehle kancane ngokuhamba kwesikhathi, kwenze ukukhiya okuthile noma izitayela zokuvala zokusebenzisa zibe ngcono.
Okubalulekile
Impahla yokufaka kumele ihambisane ngokwekhemikhali nakho kokubili uketshezi olunamanzi olusetshenziswayo kanye nemvelo yangaphandle. Izinto ezintathu ezivame kakhulu yilezi:
I-Carbon Steel: Ihlala isikhathi eside futhi iqinile, okuyenza ibe indinganiso yemboni yezinhlelo zokusebenza eziningi zezimboni nezamaselula lapho ukugqwala okukhulu kungeyona inkinga.
Insimbi Engagqwali: Ukumelana okukhethekile nokugqwala nokuhlasela kwamakhemikhali, ilungele olwandle, ukucutshungulwa kwamakhemikhali, kanye nezinhlelo zokukhiqiza ukudla.
I-Brass: Ngokuvamile igcinelwe-amasistimu okucindezela aphansi noma izinhlelo zokusebenza ezikhethekile lapho kudingeka khona ukumelana nenhlansi noma izici ezithile zensimbi.
Isinyathelo sesi-2: Ukucacisa Izinhlobo Zezintambo kanye Nezindlela Zokuvala
Uma usuzazi izidingo zakho eziyisisekelo zesistimu, isinyathelo sobuchwepheshe esiyinselele kakhulu siqala: ukuhlonza uhlobo oluthile lochungechunge nokuthi lwakha kanjani uketshezi-oluqinile. Imicu ngokuvamile iwela ezigabeni ezimbili ezibanzi: izintambo ezicijile kanye nemicu ehambisanayo (eqondile).
Imicu Eqoshiwe
Imicu ecijile iklanyelwe ukuvala ngokuhlanganisa imicu yesilisa neyesifazane njengoba iqiniswa. Ukwehluka okuvame kakhulu eNyakatho Melika yizinga le-National Pipe Tapered (NPT noma NPTF). Njengoba uphendulela ukufaka i-NPT embotsheni, ububanzi bochungechunge luyakhula, kwakheka insimbi-kuya{3}}ku-metal crush seal.
Nakuba ukufakwa kwe-NPT kubiza futhi kutholakala kabanzi, kunezihibe eziphawulekayo-ze-pressure hydraulics. Ngenxa yokuthi bathembela ekwakhiweni kwentambo ukuze bavale, bathambekele ekukhaleni ngokuhamba kwesikhathi, futhi abakwazi ukulungiselelwa ukuma ngemuva kokuqiniswa ngaphandle kokubeka uphawu. Ngokuvamile zidinga isivalo sentambo, esifana ne-Teflon tape noma i-liquid pipe dope, engagqashuka futhi ingcolise isistimu ye-hydraulic.
I-Parallel Threads kanye ne-37-Degree Flare
Imicu ehambisanayo ayivali emicu ngokwayo. Esikhundleni salokho, imicu eqondile isebenza njengomshini wokubopha ukuze idonse izindawo ezimbili ezihlukene zokuvala ndawonye.
Isibonelo esihle salokhu yi-Joint Industry Council (JIC) 37-degree flare fittting. I-JIC yowesilisa ifaka i-cone engu-37-degree, kuyilapho i-fitting yesifazane ifaka isihlalo esifanayo esingu-37-degree. Lapho inati liqiniswa, ikhoni kanye nesihlalo sicindezelwa ndawonye ngamandla amakhulu, okwakha uphawu oluthembeke kakhulu lwensimbi-kuya-metal. Ukufakwa kwe-JIC kuhle kakhulu kumasistimu anengcindezi ephezulu, kunganqanyulwa futhi kuxhunywe kabusha izikhathi eziningi ngaphandle kokukhathala, futhi akudingi isivalo sentambo.
O-I-Ring Face Seals (ORFS)
Njengoba izingcindezi zesistimu ye-hydraulic zikhuphuka kancane phakathi namashumi eminyaka, imboni isishintshe kakhulu kubuchwepheshe be-O-Ring Face Seal (ORFS). I-ORFS yokulinganisa yabesilisa ihlanganisa intambo eqondile enendandatho ye-elastomeric O-eshumekwe emseleni owenziwe ngomshini ebusweni obuyisicaba besixhumi. Ukufakwa kwensikazi kunendawo yokukhwelana eyisicaba.
Uma ukuhlanganisa kuqiniswa, i-O-ring icindezelwa phansi ebusweni besifazane. Lo mklamo unikeza isivikelo sokuvuza esingcono kakhulu esitholakala ngamandla oketshezi esimanje. Ivumela amazinga aphezulu okudlidliza kwesistimu, imelana nokukhuphuka komfutho kahle ngokuphawulekayo, futhi iqeda ubungozi bokwehlukanisa{3}}nokuqina kwengxenye.
Amazinga Omhlaba: BSP kanye ne-Metric
Uma usebenza kumishini ekhiqizwa e-Europe noma e-Asia, uzohlangabezana nezindinganiso ze-British Standard Pipe (BSP) noma i-Metric DIN. I-BSP iza ngezindlela ezimbili: BSPT (tapered) kanye ne-BSPP (parallel). Ukufakwa kwemethrikhi kuvame ukubukeka kufana nokufakwa kwe-American JIC noma kwe-ORFS ngeso lenyama, kodwa kusebenzisa imicu ye-metric (okukalwa ngamamilimitha ngentambo ngayinye) kunemicu iyintshi ngayinye. Ukusebenzisa i-thread gauge kanye ne-caliper ukuphela kwendlela ethembekile yokuhlukanisa. Ungalokothi uzame ukuphoqelela intambo yaseMelika embotsheni yemethrikhi; izokonakalisa ngokushesha imicu yazo zombili izingxenye.
Isinyathelo sesi-3: Ukuhlola Izilinganiso Zokucindezela kanye Nemikhawulo Yokuphepha
Ngokuhlonzwa kobukhulu bakho nezinhlobo zentambo, kufanele uqinisekise ukuthi okokufaka okukhethiwe kwe-hydraulic kungakwazi ukubhekana nezingcindezi zokusebenza ezinamandla zohlelo lwakho. Wonke umkhiqizi onedumela elihle ukala ukufakwa kwawo ngengcindezi ethile ephezulu yokusebenza.
Kubalulekile ukuthi osaqalayo aqonde umehluko phakathi kwengcindezi yokusebenza kanye nengcindezi yokuqhuma. Ingcindezi yokusebenza ingamandla amakhulu ukufakwa okungamelana nawo ngokuphephile phakathi nokusebenza kwansuku zonke, okuqhubekayo. Ingcindezi yokuqhuma iyindawo lapho okufanelekile kuphuka khona ngaphansi kokuhlolwa kwaselabhorethri. Embonini ye-hydraulic, imajini yokuphepha ejwayelekile iyisilinganiso esingu-4:1. Lokhu kusho ukuthi ukulinganisa okulinganiselwe ku-3,000 psi ingcindezi yokusebenza ngokuvamile ngeke kuqhume kuze kufike ku-12,000 psi.
Kodwa-ke, akumele neze udizayine isistimu ezosebenza ifike ekugcineni kwesilinganiso sokucindezela kokusebenza uma uhlelo lwakho lokusebenza luguquguquka. Emisebenzini-yangempela yomhlaba, lapho ivalvu yokulawula ivaleka kungazelelwe, i-shockwave ihamba ku-hydraulic fluid. Lawa ma-spikes angakwazi ukuphinda kabili noma kathathu ukucindezela kwesistimu okungajwayelekile ingxenye yomzuzwana. Uma ukufakwa kwakho kulinganiselwe, lezi -ama-spikes ezingashintshi zizodala ukwehluleka ukukhathala ngokuhamba kwesikhathi.
Ukwengeza, khumbula njalo umthetho wesixhumanisi esibuthakathaka kakhulu: ukuhlanganiswa kwe-hydraulic kunamandla njengengxenye yawo-elinganiselwe ephansi kakhulu. Uma uxhuma ipayipi elilinganiselwe i-psi engu-5,000 ekulinganeni kuka-2,500 psi, umthamo wakho wonke wesistimu ukhawulelwe ku-2,500 psi.
Okokugcina, lwela ukugwema ukuxuba imikhiqizo phakathi kokuhlanganiswa kokuxhumana noma nini lapho kungenzeka. Nakuba i-JIC yesilisa elingana nohlobo oluthile kufanele ilingane kahle ne-JIC yowesifazane esuka kolunye, ukuhluka okuncane ekubekezeleni kokukhiqiza kungadala izikhala ezincane-. Ukunamathela nomkhiqizi oyedwa, onedumela elihle lamapayipi akho, okokufakwayo, nama-adaptha kuqinisekisa izinga eliphezulu lokuhambisana kwengxenye nobuqotho besistimu.
Imikhuba Engcono Kakhulu Yokufaka Nokunakekela
Ngisho nokufakwa kwe-hydraulic ebiza kakhulu, okuhambisana ngokuphelele kuzohluleka uma kufakwe ngokungalungile. Iphutha elivame kakhulu elenziwa abasaqalayo lingaphezu{1}}kwe-torquing. Kukhona inganekwane eqhubekayo emsebenzini wemishini ukuthi "ukuqina kuhlale kungcono." Kumahydraulics,{4}}ukuqinisa ngokweqile kungaqhekeka kalula isihlalo esivulekayo, ukukhumula imicu, noma kuhlanekezele i-O-ring groove, kudale indlela yokuvuza unomphela.
Ukuze uvimbele lokhu, sebenzisa indlela ye-Flats From Finger Tight (FFFT) uma i-torque wrench ingatholakali. Ngale ndlela, uqinisa inathi ngesandla kuze kube yilapho lenza ukuthintana okuqinile nendawo evalekayo, umaka umugqa onqamula inathi nomzimba owufakayo ngomaka, bese usebenzisa isikrufu ukuze uphendule inathi inombolo ethile yamaflethi e-hex ngokusekelwe ezincomweni zomkhiqizi.
Ukuhlolwa kokulungisa okujwayelekile nakho kubalulekile ekugcineni isistimu ye-hydraulic isebenza kahle. Bheka izimpawu zokukhala, okuwukunqwabelana kancane, nokuswakama kwamafutha eduze kwelunga elilinganayo elingakaqali ukuconsa. Ukukhala kuwuphawu oluyisixwayiso kusenesikhathi ukuthi uphawu luqala ukwehluleka.
Uma kufanele ufake esikhundleni sokufata, hlala ulandela umthetho olandelwayo wokuphepha oqinile. Vala i-prime mover (injini kagesi noma injini), vula ama-valve okulawula emuva naphambili ukuze ukhulule noma yikuphi ukucindezela okuvaleleke emigqeni, futhi uqinisekise ukuthi yonke imithwalo yemishini ephakeme ivinjwe ngomshini noma yehliselwa phansi. Ukuzama ukuxegisa i-hydraulic fitting ngenkathi isistimu ingaphansi kwengcindezi kuyingozi ngendlela emangalisayo futhi kungaholela ekulimaleni komjovo wamanzi ngokushesha, okudinga ukunakwa okuphuthumayo.
Isiphetho
Ukuzulazula ku-ecosystem enkulu yezingxenye zamandla oketshezi ekuqaleni kungase kuzwakale nokufunda ulimi lwakwelinye izwe. Kodwa-ke, ngokuncika ohlakeni oluhlelekile olufana nendlela ye-STAMP kanye nokuthatha isikhathi sokulinganisa ngokunembile ubukhulu, ukuhlonza amajiyometri ochungechunge, nokuhlonipha izilinganiso zokucindezela, noma ubani angakwazi ukukhetha ukufakwa kwe-hydraulic.
Ukukhetha ukufaka okulungile akuyona nje indaba yokubuyisela umshini futhi usebenze; kuwutshalomali oluqondile ekusebenzeni kahle kwezisetshenziswa zakho, ukuvikelwa kwendawo ezungezile, nokuphepha kwawo wonke umuntu osebenza eduze. Phatha konke ukuxhumana ngokunemba okufanele, tshala kumathuluzi ekhwalithi afana nama-caliper namageji e-thread pitch gauge, futhi uhlale uthintana namashidi ezicaciso zomkhiqizi uma ungabaza. Njengoba lezi zinqubo sezikhona, amasistimu akho asebenza ngaphansi kwamanzi azohlala evuza-engenawo, enamandla, futhi ethembekile iminyaka eminingi ezayo.
