1 Kakaretso
Belofo ea serurubele ke sesebelisoa sa bohlokoa phepelong ea metsi le tsamaisong ea lipeipi tsa drainage.Ka tsoelo-pele ea theknoloji ea indasteri, litlhoko tse fapaneng li behiloe pele mabapi le sebopeho le ts'ebetso ea valve ea serurubele.Ka hona, mofuta, thepa le foromo ea ho hokahanya li lokela ho khethoa ka mokhoa o utloahalang ho ea ka maemo a sebetsang nakong ea moralo le khetho.
Belofo ea serurubele ke sesebelisoa sa bohlokoa phepelong ea metsi le tsamaisong ea lipeipi tsa drainage.Ka tsoelo-pele ea theknoloji ea indasteri, litlhoko tse fapaneng li behiloe pele mabapi le sebopeho le ts'ebetso ea valve ea serurubele.Ka hona, mofuta, thepa le foromo ea ho hokahanya li lokela ho khethoa ka mokhoa o utloahalang ho ea ka maemo a sebetsang nakong ea moralo le khetho.
2 Moralo
2.1 Sebopeho
Sekhechana se koalang (serurubele poleiti) ea valve ea serurubele e bohareng ba bohareng, 'me tšusumetso ea eona ho hanyetsa ho phalla e lokela ho nkoa ka moralo.
2.1 Sebopeho
Sekhechana se koalang (serurubele poleiti) ea valve ea serurubele e bohareng ba bohareng, 'me tšusumetso ea eona ho hanyetsa ho phalla e lokela ho nkoa ka moralo.
Mabapi le sebopeho sa poleiti ea serurubele sa valve ea serurubele se bophara bo boholo, AWWA C504 (American Water Supply Engineering Association Standard) e bolela hore poleiti ea serurubele ha ea lokela ho ba le likhopo tse pota-potileng, 'me botenya ba eona ha boa lokela ho feta makhetlo a 2,25 bophara ba serurubele. kutu ea valve.
Bokaholimo bo kenang metsing le bokaholimo ba metsi ba poleiti ea serurubele bo lokela ho lokisoa.
Li-screws tse ka hare ha li khone ho hlahella ka ntle ho poleiti ea serurubele, e le hore li se ke tsa eketsa sebaka se shebaneng le metsi.
2.2 Tiiso ea rabara
Bokaholimo bo kenang metsing le bokaholimo ba metsi ba poleiti ea serurubele bo lokela ho lokisoa.
Li-screws tse ka hare ha li khone ho hlahella ka ntle ho poleiti ea serurubele, e le hore li se ke tsa eketsa sebaka se shebaneng le metsi.
2.2 Tiiso ea rabara
Ka linako tse ling bophelo ba tšebeletso ea valve ea rabara ea serurubele bo khutšoanyane, bo amanang le boleng ba rabara le bophara ba sebaka sa ho tiisa.Lesale la ho tiisa la valve ea serurubele se tiisitsoeng ka rabara se lokela ho etsoa ka thepa ea boleng bo phahameng ba rabara, 'me melao ea ts'ebetso e lokela ho lateloa nakong ea ho bōptjoa ha khatello.Mocheso oa vulcanization ha oa lokela ho eketseha ka boomo, 'me nako e ka khutsufatsoa, ho seng joalo e tla etsa hore selikalikoe sa tiiso se tsofala le ho phatloha habonolo.Sebaka sa ho tiisa tšepe se kopantsoeng le lesale la ho tiisa rabara se lokela ho ba le bophara bo lekaneng, ho seng joalo lesale la ho tiisa rabara ha le bonolo ho kenngoa.Ho phaella moo, sebopeho le mamello ea boemo, symmetry, ho nepahala, boreleli, le elasticity ea lesale la tiiso ea 'mele oa valve le poleiti ea serurubele le tsona li ama bophelo ba tšebeletso ea lesale la ho tiisa rabara.
2.2 Ho satalla
Ho satalla ke taba ea bohlokoa moralong oa li-valve tsa serurubele, tse amanang le lintlha tse kang lipoleiti tsa serurubele, li-valve shafts le likhokahano.
Ho satalla ke taba ea bohlokoa moralong oa li-valve tsa serurubele, tse amanang le lintlha tse kang lipoleiti tsa serurubele, li-valve shafts le likhokahano.
(1) Boholo ba shaft ea valve Bongata ba shaft ea valve bo hlalositsoe ho AWWA C504.Haeba boholo ba shaft ea valve bo sa finyelle litlhoko, ho ka 'na ha e-ba le ho sa tiea ho lekaneng, ho lutla ha tiiso ea reverse, le torque e kholo ea ho bula.Ho satalla ha shaft ho amana le 1 / EI, ke ho re, ho ntlafatsa ho satalla le ho fokotsa bothata ba deformation, re lokela ho qala ka ho eketsa EI.E ke modulus ea elasticity.Ka kakaretso, phapang ea tšepe ha e kholo, 'me thepa e khethiloeng e na le phello e fokolang holim'a ho tiea.Ke motsotso oa inertia mme e amana le boholo ba karolo ea shaft.Boholo ba shaft ea valve hangata bo baloa ho latela motsoako oa ho kobeha le torsion.Ha e amane feela le torque, empa hape haholo-holo e amanang le nako ea ho khumama.Haholo-holo, nako ea ho khumama ea valve ea serurubele se bophara bo boholo e kholo ho feta torque.
(2) Ho hokahanngoa ha lesoba la shaft Mofuta oa khale oa AWWA C504 o bolela hore shaft ea valve ea serurubele ke molamu o otlolohileng.Ka mor'a phetolelo ea 1980, ho ile ha etsoa tlhahiso ea hore e ka etsoa li-shafts tse peli tse khutšoanyane.Ho latela AWWA C504 le GB12238, bolelele bo kentsoeng ba shaft le lesoba e lokela ho ba 1.5d.Lekhalo (boleng ba C) pakeng tsa bohale ba 'mele oa valve le qetellong ea tšehetso ea poleiti ea serurubele karolong ea axial ea valve ea butterfly ea Japane e hlalositsoe, eo ka kakaretso e amanang le boholo ba bophara, bo pakeng tsa 25 le 45mm. , e leng ho fokotsa sebaka se pakeng tsa litšehetso tsa shaft ( C value ), ka tsela eo ho fokotsa nako ea ho khumama le ho senyeha ha shaft.
3Ka bokhutšoanyane, ke ho eketsa nako ea inertia ea karolo ho eketsa ho tiea.
4Ka kakaretso, ho na le likhopo tsa mehele le likhopo tsa sefapano.Ha e le hantle, likhopo tsa sefapano li eketsa feela botsitso 'me ha lia lokela ho ba tse ngata haholo.Tse ka sehloohong ke likhopo tsa mehele.Haeba o ka eketsa likhopo tse nang le sebopeho sa ∩, ho tla ba molemo ho feta ho tiea, empa ho na le bothata ba ho se sebetse hantle.
2.3 Li-bearings tse itšebetsang
Boholo kapa khatello eohle e bohareng holim'a poleiti ea serurubele (reverse) e fetisetsoa ho bere ka sefate, kahoo ho beleha ho phetha karolo ea bohlokoa haholo.Li-valve tsa serurubele tse ling li bobebe ebile lia sebetsa, 'me li-valve tse nyane li ka phetoa ka monoana o le mong, ha tse ling tsa serurubele tsa lapeng li boima.Ho phaella ho coaxiality, symmetry, ho nepahala ha ts'ebetso, ho qeta le boleng ba ho paka, haholo Ntho ea bohlokoa ke lubricity ea thepa ea sleeve.Tekanyetso ea AWWA C504 e fana ka maikutlo a hore letsoho la shaft kapa bethe e kentsoeng 'meleng oa valve e lokela ho ba lisebelisoa tsa ho itlotsa,' me letsoho la shaft le na le bothata ba ho fokotsa likhohlano le lubrication, 'me kutu ha e lumelloe.Ntle le sleeve ea shaft, le haeba shaft ea valve e le tšepe e sa hloekang, 'mele oa valve o na le mafome le mathata a ho khomarela.Tšebeliso ea lihlahla e ka boela ea eketsa ho tiea.
Boholo kapa khatello eohle e bohareng holim'a poleiti ea serurubele (reverse) e fetisetsoa ho bere ka sefate, kahoo ho beleha ho phetha karolo ea bohlokoa haholo.Li-valve tsa serurubele tse ling li bobebe ebile lia sebetsa, 'me li-valve tse nyane li ka phetoa ka monoana o le mong, ha tse ling tsa serurubele tsa lapeng li boima.Ho phaella ho coaxiality, symmetry, ho nepahala ha ts'ebetso, ho qeta le boleng ba ho paka, haholo Ntho ea bohlokoa ke lubricity ea thepa ea sleeve.Tekanyetso ea AWWA C504 e fana ka maikutlo a hore letsoho la shaft kapa bethe e kentsoeng 'meleng oa valve e lokela ho ba lisebelisoa tsa ho itlotsa,' me letsoho la shaft le na le bothata ba ho fokotsa likhohlano le lubrication, 'me kutu ha e lumelloe.Ntle le sleeve ea shaft, le haeba shaft ea valve e le tšepe e sa hloekang, 'mele oa valve o na le mafome le mathata a ho khomarela.Tšebeliso ea lihlahla e ka boela ea eketsa ho tiea.
2.4 Ho hokahana ha shaft le poleiti ea serurubele
The shaft le poleiti ea serurubele ea serurubele se bophara ba serurubele valve ka ho khetheha li hokahantsoe ka senotlolo kapa spline, 'me khokahanyo ea polygonal shaft kapa pin le eona e ka sebelisoa.The shaft le poleiti ea serurubele ea serurubele se bophara ba serurubele belofo hangata li hokahane ka linotlolo kapa taper pins.Hona joale, li-shafts le li-discs tse ngata li kopantsoe ka lithapo.Pini e kopanyang e senyehile tlas'a maemo a thata a ho sebetsa.Sena se bakoa haholo ke mabaka a tlhahiso.Har'a bona, ho nepahala ha anastomosis ha ho molemo, boholo ba pin ha bo tšoanelehe, ho thatafala ha pinana ha hoa lekana kapa thepa ha e tšoanelehe, joalo-joalo, e lokela ho lefshoa.Molamu le poleiti ea serurubele ea valve e khōlō ea serurubele li ka kopanngoa ka mokhoa o khethehileng.
The shaft le poleiti ea serurubele ea serurubele se bophara ba serurubele valve ka ho khetheha li hokahantsoe ka senotlolo kapa spline, 'me khokahanyo ea polygonal shaft kapa pin le eona e ka sebelisoa.The shaft le poleiti ea serurubele ea serurubele se bophara ba serurubele belofo hangata li hokahane ka linotlolo kapa taper pins.Hona joale, li-shafts le li-discs tse ngata li kopantsoe ka lithapo.Pini e kopanyang e senyehile tlas'a maemo a thata a ho sebetsa.Sena se bakoa haholo ke mabaka a tlhahiso.Har'a bona, ho nepahala ha anastomosis ha ho molemo, boholo ba pin ha bo tšoanelehe, ho thatafala ha pinana ha hoa lekana kapa thepa ha e tšoanelehe, joalo-joalo, e lokela ho lefshoa.Molamu le poleiti ea serurubele ea valve e khōlō ea serurubele li ka kopanngoa ka mokhoa o khethehileng.
2.5 Bolelele ba sebopeho
Bolelele ba sebopeho sa valve ea serurubele bo tsoela pele ho ba letoto le lekhutšoanyane, empa mokhoa o joalo o tlameha ho ba hlokolosi.Hobane bolelele ba sebopeho bo khutšoanyane haholo ho ama matla.Litekanyetso tsa machaba li hlalositse bolelele ba sebopeho sa letoto le lekhutšoanyane la li-valve tsa serurubele sa flange, empa bolelele ba sebopeho sa valve e nang le khatello e phahameng ha boa lokela ho khutsufatsoa, ho seng joalo mathata a tla hlaha, haholo-holo bakeng sa lisebelisoa tse brittle tse kang tšepe ea tšepe.
Bolelele ba sebopeho sa valve ea serurubele bo tsoela pele ho ba letoto le lekhutšoanyane, empa mokhoa o joalo o tlameha ho ba hlokolosi.Hobane bolelele ba sebopeho bo khutšoanyane haholo ho ama matla.Litekanyetso tsa machaba li hlalositse bolelele ba sebopeho sa letoto le lekhutšoanyane la li-valve tsa serurubele sa flange, empa bolelele ba sebopeho sa valve e nang le khatello e phahameng ha boa lokela ho khutsufatsoa, ho seng joalo mathata a tla hlaha, haholo-holo bakeng sa lisebelisoa tse brittle tse kang tšepe ea tšepe.
Nortech ke e 'ngoe ea baetsi ba li-valve tsa indasteri ba etelletseng pele Chaena ba nang le setifikeiti sa boleng sa ISO9001.
Nako ea poso: Aug-20-2021