Ubude besakhiwo bamavalvu ensimbi wezinhlelo zamapayipi ane-flanged Amapayipi kanye nomfutho wemishini kanye nohlelo lokuhlola ukuvuza

Ubude besakhiwo bamavalvu ensimbi wezinhlelo zamapayipi ane-flanged Amapayipi kanye nomfutho wemishini kanye nohlelo lokuhlola ukuvuza

Izithenjwa zifaka phakathi UMBHALO WALELIZINGA LaseYurophu EZINDAWENI EZIFANELE, KUHLANGANISA AMAZINGA EREferensi NOMA NGAPHANDLE KWEMIQEPHU, KANYE NAMA-ATHIKILI AVELA KWEZINYE IZINCWADI (IMIGANGATHO EKHOMBIWE INAMAMA NGEZANSI). Endabeni yezinga le-REFERENCE ephawulwe ngomnqamulajuqu, ukulungiswa nokubuyekeza kuzosebenza kuphela uma leli ZINGA lase-Europe lihlinzeka ngokwamukelwa kwenguqulo elandelayo eguquliwe noma eshintshiwe Yezinga lesithenjwa. Ngamazinga ereferensi angamakiwe ngomnqamulajuqu, kusetshenziswa inguqulo ye-***. (ubuso nobuso (FTF)) ubude bokwakha (kumavalvu aqondile) buvezwa ngamamilimitha...
Isingeniso
Amathebula obude besakhiwo (ubuso nobuso kanye nendawo nobuso) alungiselwe amavalvu ochungechunge lwemethrikhi angu-EN 558-1 kanye namavalvu ochungechunge lwamayintshi angu-EN 558- 2 amayintshi.
Uchungechunge oluyisisekelo kuleli zinga lisuselwa KUSUKA Ochungechungeni oluboniswe ku-Appendix A(ULWAZI).
Izinguquko ochungechungeni lwangempela azifakwa ngokuzenzakalelayo kuleli zinga.
Izinombolo zochungechunge oluyisisekelo zihambisana nalezo ze-1SO/DIS 5752:1993.
1 ububanzi
Le NHLOKO icacisa ubude be-inch face to face (FTF) CONSTRUCTION ubude kanye nendawo to face (CTF) ukwakhiwa kwamavalvu ensimbi kumasistimu amapayipi ane-flanged
Ubude.
Lesi sigaba sihlanganisa ama-valve anesigaba sephawundi esilandelayo kanye nosayizi wegama (DN).
- Amakilasi angu-125, 150, 250, 300 kanye nama-600 pounds.
DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125,DN150, DN200, DN250, DN300, DN350, DN400, DN50, DN50, DN50, DN50, DN50, I-DN800, DN900, DN1000, I-DN1200, DN1400, DN1600, DN1800 kanye ne-DN2000.
I-EN 26554 icacisa ubude bokwakhiwa kobuso bezicupho ezizenzakalelayo.
2 Amazinga Okubhekisela
Izithenjwa zifaka phakathi UMBHALO WALELIZINGA LaseYurophu EZINDAWENI EZIFANELE, KUHLANGANISA AMAZINGA EREferensi NOMA NGAPHANDLE KWEMIQEPHU, KANYE NAMA-ATHIKILI AVELA KWEZINYE IZINCWADI (IMIGANGATHO EKHOMBIWE INAMAMA NGEZANSI). Endabeni yezinga le-REFERENCE ephawulwe ngomnqamulajuqu, ukulungiswa nokubuyekeza kuzosebenza kuphela uma leli ZINGA lase-Europe lihlinzeka ngokwamukelwa kwenguqulo elandelayo eguquliwe noma eshintshiwe Yezinga lesithenjwa. Ngamazinga ereferensi angamakiwe ngomnqamulajuqu, inguqulo yawo iyasetshenziswa.
I-En736-1 yamagama e-valve
Isahluko 1 Incazelo yohlobo lwevalvu
I-TS EN 26554 Izingibe zomusi ezizenzakalelayo ezinama-flange - ubude besakhiwo esiseceleni
3 chaza
Ngezinjongo zaleli zinga, i-prEN 736-1 kanye nezincazelo ezilandelayo ziyasebenza.
3.1 (Ubuso nobuso (FTF)) ubude bokwakha (ngokuqondana namavalvu) Ibanga ngamamilimitha phakathi kwezindiza ezimbili ezisekugcineni ** kwesiteshi somzimba kanye ne-perpendicular to the body axis line. Noma njengoba kushiwo ezingeni elifanele lomkhiqizo we-valve (bheka Umfanekiso 1 no-2).
3.2(Center-face (CTF))) Ubude Bokwakha (kuma-angular valves) Ibanga ngamamilimitha phakathi kwendiza eyodwa kwezimbili ekugcineni* kwephaseji yomzimba kanye ne-perpendicular kumugqa we-eksisi wephaseji nolayini we-eksisi ngakolunye uhlangothi. umzila womzimba (bheka Umfanekiso 1 no-2)
Ubude besakhiwo nokubekezelelana
4.1 Uchungechunge Oluyisisekelo
Uchungechunge oluyisisekelo lobuso nobuso (FTF) kanye nobude besakhiwo se-centre-to-face (CTF) buzohambisana nezicaciso eziseThebulani 1. UCHUNGECHUNGE OLUSISISEKO LUZOKUCATSHALWA OHLOBO NGALUNYE LWEVALIZI LINIKEZWA EMATHEBULENI 3 UKUYA KU-17. .
4.2 Ubude besakhiwo samavalvu angalayishiwe
4.2.1 I-flange eyisicaba ifanele i-valve flange:
- grey cast iron flanges, isigaba 125;
- I-Copper alloy flanges yamakilasi 150 kanye nama-300 LBS.
Ubude bezakhiwo zobuso-buso (FTF) kanye nobuso obumaphakathi (CTF) kufanele buhambisane neMifanekiso 1 kanye no-2.
4.2.2 Ama-convex flange asebenza kuvalvu ahlanganisa:
- I-Flange enetafula eliphezulu le-convex elingu-1.6mm
- grey cast iron flange, iklasi 250 LBS.;
- Ama-flange ensimbi asebenzisekayo amakilasi 150 no-300:
- Ama-flange ensimbi amakilasi 150 no-300.
- I-Flange enetafula eliphezulu le-convex elingu-6.4mm
- Ama-flange ensimbi, iklasi lama-600 LBS.
Ubude bezakhiwo zobuso-buso (FTF) kanye nobuso obumaphakathi (CTF) kufanele buhambisane neMifanekiso 1 kanye no-3.
4.2.3 Ama-flange axhumeke kwindandatho afanele amavalvu aklanyelwe ukuxhuma ubuso obune-flange namasongo ensimbi anesakhiwo sephrofayili e-octagonal noma eyi-elliptical. Ubude bezakhiwo ze-FTF kanye ne-CTF kufanele buhambisane ne-FIG. 4.
4.2.4 Obunye ubuso be-flange bufanele amavalvu e-Class 150, 300 kanye nama-600 anemicu yangaphakathi neyangaphandle noma anendawo eyi-convex ne-concave. Ubude bezakhiwo zobuso nobuso (FTF) kanye ne-centre-to-face (CTF) kufanele buhambisane nezibalo 1 no-5.
4.3 Ubude besakhiwo samavalvu anemigqa
4.3.1 Kumavalvu anama-gasket axhunywe kuma-flange ahambisana nolwelwesi olunwebekayo, ebusweni. UBUSO (FTF) KANYE NESIKHATHI – UBUSO (CTF) UBUDE BESIMO BUZOBA UBUDLA PHAKATHI KWEMIphetho EZIMBILI YEVAVI NGAPHANSI KWEZIMO ZOKUGQWA. Umkhiqizi uzohlinzeka ngobude bonke bevalvu ngaphambi kokuhlanganiswa.
4.3.2 Kumavalvu anelayini ye-elasto noma anemigqa eqinile njengesici sokukhiqiza esivamile, ukushuba kolwelwesi endaweni ehambisanayo kufanele kufakwe phakathi nobude bobuso nobuso (FTF) kanye nendawo-nobuso ( CTF), ngaphandle uma umklamo we-valve ungafaki le ngxenye. Uma UBUSO-BUSO NOBUSO (FTF) KANYE KANYE NOBUBUSO-KUPHAKATHI NOBUSO (CTF) UBUDE obunikezwe KUTHEBULA LOKU-1 ABANGAKLANYWE UKUHLANGANISA IZIGABA ZOKULAPHA, BONA UBUDE BALOLO LINGA BUYOKWEZELWA EBULINGENI ESISISEKELO.
4.3.3 Kumavalvu anomugqa onwebekayo noma oqinile okungavamisile ukuba yisici sokukhiqiza, ukujiya kolwelwesi olusebusweni be-flange kungase kwengezwe ebusweni bobuso (F”TF) kanye ne-center-to-face (CTF) ubude besakhiwo obunikezwe kuThebula I.
4.4 Ukubekezelela Ukubekezelela ubude bezakhiwo zobuso nobuso (FTF) kanye ne-centre-to-surface (CTF) kunikezwe kuThebula lesi-2.
Umfanekiso 1
I-FIG. 2 I-flat flat
I-FIG. 3 I-convex flange
(ubuso – ubuso) Ubude besakhiwo = Ithebula 1 izilinganiso +X
(Uhlangothi olumaphakathi) Ubude besakhiwo = Ithebula ubukhulu obungu-1 + 0.5x unit mm
Umfanekiso 4.
Qaphela.FTF=(ubuso – ubuso) ubude besakhiwo; CTF=(ubuso obuphakathi) ubude besakhiwo.
Iyunithi iyimilimitha.
Ubukhulu kuThebula 1.
Umfanekiso 5
Ingcindezi yepayipi kanye nemishini kanye nohlelo lokuhlola ukuvuza 1, isisekelo sokulungiselela 1. Gb50235-2003 "Ikhodi yezobunjiniyela bepayipi lensimbi yezimboni Ukwakhiwa nokwamukela Ikhodi" 2. Gb50236-2001 "Imishini yasensimini, inqubo yokwakha amapayipi welding kanye nekhodi yokwamukela" 2, inhloso ukuhlolwa kwengcindezi nokuvuza kanye nokusetshenziswa kwe-medium ngemuva kokwakhiwa nokufakwa kwanoma iyiphi impahla, ipayipi, Ukuze kuhlolwe ikhwalithi yokwakha futhi kuvimbele izingozi ezibangelwa ukugijima, ukugijima, ukuconsa kanye nokuvuza ngesikhathi sokukhiqiza, ukuhlolwa kwengcindezi nokuhlolwa kokuvuza kufanele kwenziwe. ezindaweni zokushisela, ama-valve namajoyinti e-flange ngaphambi kokuhlolwa kokusebenza. Ngokuvamile, umkhumbi we-pressure kanye namanzi okuhlola ingcindezi yepayipi njengento ephakathi
Okokuqala, isisekelo sokulungiselela
1. Ikhodi ye-Gb50235-2003 Yokwakhiwa Nokwamukelwa Kobunjiniyela Bepayipi Lensimbi Yezimboni
2. Gb50236-2001 “Ikhodi Yokwakha Nokwemukelwa Kobunjiniyela bokushisela bezisetshenziswa zensimu kanye nenqubo yamapayipi”
Okwesibili, inhloso yokuhlolwa kwengcindezi nokuvuza nokusetshenziswa kwe-medium
Ngemuva kokwakhiwa nokufakwa kwanoma iyiphi imishini kanye nepayipi, ukuze kuhlolwe ikhwalithi yokwakha futhi kuvimbele izingozi ezibangelwa ukugijima, ukugijima, ukuvuza nokuvuza ngesikhathi sokukhiqiza, ukuhlolwa kwengcindezi kanye nokuhlolwa kokuvuza kufanele kwenziwe endaweni yokushisela, i-valve kanye ne-flange. uxhumano ngaphambi kokuhlolwa kokugunyazwa.
Ngokuvamile, umkhumbi we-pressure kanye namanzi okuhlola umfutho wepayipi njengomthombo, futhi akufanele asebenzise uketshezi oluyingozi. Epayipini legesi elinobubanzi obuncane bungaphezu kuka-500mm, amandla okuthwala ukuphepha ephaseji angase anganeli lapho ukuhlolwa kwengcindezi kwenziwa ngamanzi, ngakho-ke umoya noma i-nitrogen ingasetshenziswa njengendawo yokuhlola ingcindezi.
Njengoba ubungozi bokuhlolwa komfutho womoya bukhulu kakhulu kunokuhlolwa kwengcindezi yamanzi, ngaphandle kwezidingo ezibalulwe emdwebeni wokuklama ukuze kuthathelwe indawo uketshezi ukuze kuhlolwe ingcindezi futhi kuthathwe izinyathelo zokuphepha ezinokwethenjelwa, ezinye izinto zokusebenza namapayipi akuvunyelwe ukusebenzisa igesi ukucindezela. test.
Ezintathu. Ukulungiselela ngaphambi kokuhlolwa kwengcindezi nokuhlolwa kokuvuza
1. Ukufakwa nokuhlolwa kwamapayipi emishini nezinto ezisetshenziswayo;
2. Hlola ngokuphindaphindiwe okokusebenza kanye nepayipi ngaphansi kokuhlolwa kwengcindezi ukuze ubone ukuthi inqubo ilungile yini;
3. Ngaphambi kokuhlolwa kwengcindezi, wonke ama-valve okuphepha kanye nezikali zokucindezela kufanele kuvalwe ku-valve yezimpande, futhi amathuluzi afanele kufanele ahlukaniswe noma asuswe ukuze kuvinjelwe ukusuka noma ukulimala kobubanzi obukhulu;
4. Hlanza indawo yokuhlolwa kwengcindezi nokuhlolwa kokuvuza
5. Abasebenzi ababambe iqhaza ekuhlolweni kwengcindezi kanye nokuhlolwa kokuvuza baphumelele ukuqeqeshwa kobuchwepheshe;
6. Lungisa iphampu yokucindezela kwamanzi, ipompo yokucindezela komoya nezinye izinto zokuhlola ingcindezi kanye nerekhodi lokuhlolwa kwengcindezi;
7. Uma kukhona ukufakwa kwangaphandle, kufanele kwenziwe ngemuva kokuhlolwa kwengcindezi.
Okwesine, izidingo zokwakha zokuhlola
1. Ngaphezu kokudweba kanye nokufakwa kwe-thermal, ukufakwa kwepayipi kusebenza ngaphakathi kwendawo yokuhlola kuqediwe ngokuvumelana nemidwebo, futhi kwadlula ukuhlolwa ngokugadwa kanye nabasebenzi bezobuchwepheshe esizeni.
2. Ngesikhathi sokuhlolwa kwengcindezi, i-test medium, ingcindezi kanye nesikhathi sokuzinza kufanele kuhlangabezane nezidingo zokuklama futhi kwenziwe ngokuhambisana nemithetho efanele.
3. Lapho uhlola imishini namapayipi emoto, uhlangothi nohlangothi oluphambene nesembozo se-flange ne-flange alukwazi ukuma.
4. Ipayipi liyakufanelekela ukuhlolwa okungonakali futhi lifinyelela isilinganiso sokutholwa.
5. I-gauge yokucindezela kokuhlola ifanelekile, futhi ukunemba kwayo akukho ngaphansi kwebanga le-1.5 ngesikhathi sokuhlolwa. Isilinganiso esigcwele setafula kufanele sibe izikhathi ezingu-1.5 ~ 2 zokucindezela kokuhlola, futhi isilinganiso sokucindezela kwesigaba sepayipi akufanele sibe ngaphansi kwezicucu ezingu-2.
6. Ukuhlukanisa ngempumelelo ipayipi elingaphansi kokuhlolwa ezinhlelweni ezingabalulekile ezinamabhodi angaboni noma ezinye izilinganiso, amapuleti alengayo endaweni eyedwa, futhi uxhume amapayipi okwesikhashana kanye nezinto zokusebenza zokuqinisa sekuqediwe.
7. Konke ukuhlolwa kwengcindezi kanye nemishini ebamba umoya isilungile.
8 ngesikhathi sokuhlolwa kwengcindezi, okokusebenza kwengcindezi, ipayipi elinjengomsindo ongajwayelekile, ukwehla kwengcindezi, ukuxebuka kopende ongaphezulu, i-press gauge pointer ayinyakazi noma inyakaze iye phambili naphambili nezinye izimo ezingavamile, kufanele kumiswe ngokushesha ukuhlola, kunciphise ingcindezi ukuze kutholwe. out imbangela, yisimo esiqondile ekunqumeni ukuthi uqhubeke nokuhlolwa.
Okwesihlanu, amazinga ekhwalithi yokuhlola ukuvuza kokuhlolwa kwengcindezi
1. Izinto ezigcina uketshezi ngaphansi komfutho womoya ngeke zivuze ngesikhathi sokuhlolwa komjovo wamanzi.
2. Okokusebenza okunomfutho wokusebenza ongaphansi kuka-50KPa (ingcindezi yegeji), ama-weld seams azohlolwa ngamafutha ** shuo. Uma kukhona noma yikuphi ukukhubazeka, kuzoqedwa futhi ukuhlolwa kokuqina kuzokwenziwa ngaphansi kwengcindezi yokusebenza ngemva kokuqedwa. Isikhathi singamahora angama-24, kanti ukuvuza okujwayelekile akudluli ku-0.25% ngehora.
3. Ingcindezi yokusebenza ku-50-700 kpa ingcindezi (ithebula) yemishini, enengcindezi elingana nezikhathi eziyi-1.25 ukuhlolwa kwamandla okucindezela, isikhathi semizuzu emi-5, yabe isiwela ekucindezelweni kokusebenza ukuze ihlolwe, uma kukhona ukukhubazeka, ukuqeda. , susa ukuhlolwa ekucindezelweni kokusebenza eduze kwamadigri, ngemuva kwesikhathi samahora angama-24, inani lokuvuza eliphakathi akufanele lidlule u-0.25% ngehora.
4. Imishini ye-vacuum kufanele ibe ku-200KPa (i-gauge pressure) yokuhlola amandla imizuzu emi-5, futhi isuse amaphutha atholakala esivivinyweni, bese kuba ngu-100KPa (gauge pressure) yokuhlola ingcindezi yokuhlolwa kokuqina, isikhathi samahora angama-24, ukuvuza okujwayelekile akukwenzi. kudlule u-0.25% ngehora.
5. Ngemishini enezidingo ezikhethekile zokuklama, ukuhlolwa kuzokwenziwa ngokuvumelana nezidingo zokuklama.
Isithupha, ukuhlolwa kokuvuza kokuhlolwa komfutho womoya
1. Ukucindezela kokuhlola izikhathi ezingu-1.25 zokucindezela kokuklama
2 ingcindezi test boost speed akumele ibe nkulu kuno-50KPa/min, ikhuphule ingcindezi yokuhlola engu-50% yokumisa isheke le-3min, uma ingekho into engavamile, bese kuba ngu-10% wokucindezela kwesinyathelo ngesinyathelo ukukhulisa. Yima i-10min esigabeni ngasinye, yeka i-10min ngemuva kokufinyelela ingcindezi eklanyelwe, bese uhlola ngokucophelela zonke izingxenye uma kusekhona okungavamile, ukucindezela kunganyuswa ekucindezelweni kokuhlola. Misa i-10min uma kungekho ukwehla, akukho ukuvuza futhi kungekho ukuguqulwa okubonakalayo, kuyafaneleka.
3. Ngemuva kokuhlolwa kwamandla okucindezela kufanelekile, ukucindezela kuncishiswa ekucindezelweni kokuklama, futhi ukuqina kuhlolwa ngokuxubha amanzi anensipho.
4. Isikhathi sokumisa sokucindezela kokucindezela sizoqinisekisa ukuthi lonke uhlelo lunesikhathi esanele sokuhlola, lapho kungeke kwenzeke khona ukuvuza noma ukucindezeleka.
5 ngemuva kokuhlolwa kufanele kuncishiswe kancane ingcindezi, imbobo yokukhipha kufanele izame ukusebenzisa isistimu yepayipi elingenalutho, njengepayipi lesikhashana kufanele lixhunywe ekukhishweni kwangaphandle, imbobo yokukhipha akufanele ibekwe endaweni kaningi ngokusebenzisa abasebenzi.
6. Uma kwenzeka ukuvuza ngesikhathi sokuhlolwa kwengcindezi, akuvunyelwe ukulungisa ngokucindezela. Kuyadingeka ukukhulula ukucindezela futhi uphinde uhlole ingcindezi ngemuva kokususwa kwesici.
7. Ukuhlolwa kokuvuza kufanele kugxile ekuhlolweni kwebhokisi lokugxusha i-valve, i-flange noma intambo yokuxhumana, i-valve yokukhipha umoya, i-valve yokukhipha umoya, i-drainage valve, i-gasket, imbobo yokushisela, akukho ukuvuza ekuhlolweni kwe-ejenti evuthelayo ukuze uthole abaqeqeshiwe.
Ukuxhumeka kokuhlola kungenziwa kalula, ngokushesha nangokuphephile kusetshenziswa isixhumi esivaliwe ESISHESHAYO se-Heimple Machinery.
Tianjin Haiyipu Machinery Co., LTD. Ibhizinisi lokukhiqiza eligxile ekuhlinzekeni izixhumi ezisheshayo nezisombululo. Le nkampani ibeka ucwaningo nentuthuko, ukukhiqiza, ukuthengisa kanye nensizakalo yokuthengisa emva kokuthengisa njengento eyodwa, ukuhlinzeka amakhasimende ngesixazululo esiphelele esihambisanayo sesixhumi esisheshayo. Ngemuva kweminyaka yokuthuthuka, inkampani ibilokhu ibambelela kufilosofi yebhizinisi “yekhasimende kuqala, ubuhle”, ithobela umgomo othi “ikhasimende kuqala” ukuhlinzeka ngezinsizakalo ezisezingeni kumakhasimende ethu.