Ivalve yokutywina izinto eziqhelekileyo kunye neemeko zenkonzo Ivalve yesandla segesi yesango ivelufa

Ivalve yokutywina izinto eziqhelekileyo kunye neemeko zenkonzo Ivalve yesandla segesi yesango ivelufa

Izixhobo zokutywina i-valve zinezintlu ezimbini zentsimbi kunye nezingezizo ezentsimbi. Izinto eziqhelekileyo kunye neemeko zabo zokusetyenziswa zimi ngolu hlobo lulandelayo:
1. Irabha yokwenziwa
Irabha yokwenziwa ingcono kunerabha yendalo ekuxhathiseni ioyile, ukumelana nobushushu kunye nokumelana nokugqwala. Ubushushu bokwenziwa ngokubanzi kwerabha t ≤ 150℃, irabha yendalo t ≤ 60℃, irabha esetyenziselwa uxinzelelo lwegama PN ≤ 1MPa ivelufa yeglowubhu, ivalve yesango, ivalve yediaphragm, ivalve yebhabhathane, ivalve yokukhangela, ivalve yokuvala kunye nezinye iivalvu zokutywina.
2, inayiloni
Inayiloni ineempawu ze-coefficient ephantsi ye-friction kunye nokuchasana kakuhle kwe-corrosion. Inayiloni isetyenziselwa kakhulu ubushushu t ≤ 90℃, uxinzelelo lwegama PN ≤ 32MPa ivalve yebhola, ivalve yeglowubhu.
3. Teflon
I-Ptfe isetyenziswa ikakhulu kwiivalvu zeglowubhu, iivalvu zesango kunye neevalvu zebhola ezinobushushu obungu-T ≤ 232℃ kunye noxinzelelo lwe-PN ≤ 6.4MPa.
4, intsimbi
Intsimbi yokuphosa isetyenziselwa iivalve zesango, iivalve zeglobhu kunye neeplagi zeplagi zegesi kunye neoli, kunye neqondo lokushisa T ≤ 100℃ kunye noxinzelelo lwe-PN ≤ 1.6mpa.
5. Ingxubevange yeBabbitt
I-alloy ye-Babbitt isetyenziselwa i-ammonia stop valves kunye nobushushu be-T-70 ~ 150℃ kunye noxinzelelo lwe-PN ≤ 2.5MPa.
6. Ingxubevange yobhedu
Izinto eziqhelekileyo ze-alloy yobhedu yi-6-6-3 ye-tin bronze kunye ne-58-2-2 yobhedu ye-manganese. Ukumelana nokunxiba kwe-alloy ye-Copper, ilungele ukushisa kwe-T ≤ 200℃, uxinzelelo lwe-PN ≤ 1.6MPa amanzi kunye ne-steam, edla ngokusetyenziswa kwiivalvu zesango, iivalvu zeglowubhu, iivalve zokujonga, iivalve zeplagi, njl.
7, intsimbi ye-chrome engenasici
Iimpawu zentsimbi ye-Chrome esetyenziswa ngokuqhelekileyo ziyi-2Cr13, i-3Cr13 emva kokucima kunye nonyango olushushu, ukuxhathisa okulungileyo kokuhlwa. Ihlala isetyenziselwa ubushushu t ≤ 450℃, uxinzelelo lwegama PN ≤ 32MPa amanzi, umphunga kunye neoli kunye nezinye iivalvu zemidiya.
8, chromium nickel titanium steel stainless
I-brand esetyenziswa ngokuqhelekileyo ye-chromium nickel yensimbi engenasici yi-1Cr18Ni9ti, enokumelana ne-corrosion, ukumelana nokukhukuliseka kunye nokuxhathisa ukushisa. Ifanelekile kwiqondo lokushisa T ≤ 600℃, uxinzelelo lwe-PN ≤ 6.4MPa umphunga, i-nitric acid kunye neminye imithombo yeendaba, esetyenziselwa i-valve yeglobhu, i-valve yebhola, njl.
9, intsimbi ye-nitriding
Ibakala eliqhelekileyo lentsimbi ye-nitriding yi-38CrMoAlA, enokumelana nokugqwala okuhle kunye nokuxhathisa ukonakala emva kokungcwatywa kwe-carburizing. Ngokuqhelekileyo isetyenziselwa i-valve yesango lesikhululo samandla kunye neqondo lokushisa T ≤ 540℃ kunye noxinzelelo lwe-PN ≤ 10MPa.
I-10, ibhoni
Ukubhobhoza ngumzimba okanye idiskhi yesixhobo somzimba esisetyenzwe ngokuthe ngqo kumphezulu wokutywina, ukunyangwa komphezulu we-boronizing, ukutywina ukumelana nokunxiba komphezulu kulungile kakhulu. Isetyenziselwa ivalve yokuvuthela kwiplanti yamandla.
Ivalve yesango legesi Ivalve yesandla Jika ngesandla ivili lesandla ngesandla ukwenza isikhondo sinyuke kwaye siwe, ukuze uqhube ipleyiti yesango uyinyuse kwaye uhle ukuvula nokuvala ivalve. I-valve Ixhotyiswe “KUVULA” KUNYE “NOKUVALA” OKUBONISA IWASHI, JIKELEZA IWASHI, ISANGO LIYAWA, ISIKHOMBI SOKUKHOMBISA KWINDAWO “ESIVILEYO”, KWAYE IVAVA IVALIWE. Jika I-COUNTERCOCKWISE, Isango liyaphakama, Inaliti ikhomba KWIPOSITION “ON”, YAYE UVULA Ivalve. Xa uvavanya uxinzelelo lombhobho, kuyimfuneko ukusebenzisa i-handwheel yentonga eyandisiweyo. Vala ivalve kwaye kufuneka ivale kwindawo yayo (jonga indawo yesalathisi). Jika ivili lesandla ngokwewotshi ukuvala, kwaye ulijike ngasekunene ukuze ulivule.
Uluhlu lwe-1.
Iivalvu zesango lerhasi eziqhutywa ngesandla ezinedayamitha ye-DN100mm~300mm kunye noxinzelelo lwegama elinguPN0.8mpa uqhagamshelo olune-flanged ekupheleni zibandakanyiwe kule ngcaciso.
2. Sebenzisa
2.1 Le valve isetyenziswa njengesixhobo sokuvula nokuvala kwimibhobho yerhasi yedolophu kunye nerhasi yendalo.
2.2 Khetha imathiriyeli yevalvu ngokophakathi.
2.2.1 Ivalve yentsimbi yentsimbi ifanelekile kwirhasi, kwirhasi yendalo kunye nolunye uhlobo losasazo.
2.3 Ubushushu obusebenzayo:
2.3.1 Ubushushu obusebenzayo bevalve yentsimbi ye-ductile ngu ≤120℃
Ulwakhiwo lwe-3.
3.1 Isakhiwo esisisiseko sevalve yesango yegesi iboniswe kuMfanekiso 1
3.2 I-gasket yeendawo ezinxibileyo zizaliswe ngebhodi ye-asbestos yerabha kunye nerabha ye-fluorine ukuqinisekisa ukutywinwa okuthembekileyo.
4. Ukusebenza
Iivalvu zeManuwali ZIJULA ISANDLA NGESANDLA UKUPHAKAMISA NOKUHLUPHA ISIQINISO, ngaloo ndlela IYAQHUBA ISANGO ELIPHEZULU LISHLE UKUZE LIVULE NOKUVALA IVAVVU. I-valve Ixhotyiswe “KUVULA” KUNYE “NOKUVALA” OKUBONISA IWASHI, JIKELEZA IWASHI, ISANGO LIYAWA, ISIKHOMBI SOKUKHOMBISA KWINDAWO “ESIVILEYO”, KWAYE IVAVA IVALIWE. Jika I-COUNTERCOCKWISE, Isango liyaphakama, Inaliti ikhomba KWIPOSITION “ON”, YAYE UVULA Ivalve.
5. Ukugcinwa, ukugcinwa, ukufakwa kunye nokusetyenziswa
5.1 Ivalve iya kugcinwa kwigumbi elomileyo nelingena umoya, kwaye zombini iziphelo zepaseji yevalvu ziya kuvalwa.
5.2 Iivalvu ezigcinwe ixesha elide kufuneka zihlolwe rhoqo ukungcola. Ingqwalasela ekhethekileyo kufuneka ihlawulwe ekucoceni kwendawo yokutywina ukukhusela umonakalo wokutywinwa kwendawo.
5.3 Ngaphambi kofakelo, khangela ngononophelo ukuba ngaba uphawu lwevalve luhambelana neemfuno zokusetyenziswa.
5.4 Ngaphambi kofakelo, igumbi langaphakathi kunye nomgangatho wokutywina wevalve kufuneka uhlolwe. Ukuba kukho ukungcola, kufuneka kucocwe ngelaphu lokucoca.
5.5 Imibhobho kufuneka icocwe phambi nasemva kofakelo ukuqinisekisa ukuba akukho ntsalela kwimibhobho.
5.6 Xa kuhlolwa uxinzelelo lombhobho, makusetyenziswe ivili lesandla ngentonga eyandisiweyo. Vala ivalve kwaye kufuneka ivale kwindawo yayo (jonga indawo yesalathisi). Jika ivili lesandla ngokwewotshi ukuvala, kwaye ulijike ngasekunene ukuze ulivule.
5.7 Ivalve kufuneka ivuthelwe rhoqo ukuthintela ukugquma.
5.8 Ivalve kufuneka ithanjiswe rhoqo (10 ~ 15 iintsuku) ukuthambisa iperi yokutywina kunye nesiqu sevalve kunye nezinye iiperi ezihambayo ukunciphisa itorque yokutshintsha kunye nokukhusela iperi yokutywina.
6. Iimpazamo ezinokwenzeka, izizathu, kunye neendlela zokusombulula ingxaki zidweliswe kwitheyibhile
Uluhlu loku-1 Iimpazamo ezinokwenzeka, izizathu, kunye neendlela zokusombulula ingxaki 1
Iwaranti ye7.
Umenzi unoxanduva lwewaranti yevalve kunyaka omnye emva kokuba isetyenziswe, kodwa hayi ngaphezulu kweenyanga ezili-18 emva kokunikezelwa. Ngexesha lewaranti, ngenxa yezizathu zomgangatho wemveliso zinokulungiswa okanye zitshintshwe.
8. Ukuodola imiyalelo
Nceda uchaze xa uodola
Uxinzelelo lwegama MPa
Idayamitha encinci mm
Ubude besakhiwo umgangatho
Umgangatho wodibaniso lweFlange
Ngesixhobo esingenawo amafutha
Isixhobo sevili lesandla kunye nemilinganiselo kunye okanye ngaphandle kwentonga yolwandiso