Uhlalutyo lwengxaki eqhelekileyo kwikhabhoni ephantsi ikhabhoni yogcino lwemveliso yokwazisa iteknoloji

Uhlalutyo lwengxaki eqhelekileyo kwikhabhoni ephantsi ikhabhoni yogcino lwemveliso yokwazisa iteknoloji

Ivalve esikiweyo kufuneka itywinwe ngamandla kangangoko
Okukhona isezantsi imfuneko yokuvuza kwevalve esikiweyo, kokukhona ukuvuza kwevalve ethambileyo yevalve iyeyona isezantsi, isiphumo sokunqunyulwa silungile ngokuqinisekileyo, kodwa asikwazi ukumelana, ukuthembeka okulambathayo. Ukusuka ekuvuzeni kunye nokuncinci, ukutywinwa kunye nomgangatho ophindwe kabini othembekileyo, itywina elithambileyo elisikiweyo lingcono kunetywina eliqinileyo elisikiweyo. Njengomsebenzi opheleleyo we-valve yokulawula i-ultra-light, itywinwe kwaye ifakwe ngokhuseleko lwe-alloy-resistant-resistant, ukuthembeka okuphezulu, izinga lokuvuza kwe-10-7, liye lakwazi ukuhlangabezana neemfuno ze-valve yokusika.
Ivalve yokutywina kabini ayinakusetyenziswa njengevalve esikiweyo
I-advanteji ye-spool ye-valve yezihlalo ezibini yeyokuba i-force balance structure ivumela ukuba umahluko woxinzelelo ube mkhulu, ngelixa i-disadvantage yayo ebalaseleyo kukuba iindawo ezimbini zokutywina azikwazi ukudibanisa kakuhle ngexesha elinye, okubangela ukuvuza okukhulu. Ukuba isetyenziswe ngokunyanzeliswayo kunye nokunyanzeliswa ukunqumla umcimbi, ngokucacileyo umphumo awulungile, nokuba wenze uphuculo oluninzi (njenge-valve ye-sleeve yokutywina kabini), ayinqweneleki.
Ivalve enezihlalo ezibini kulula ukuyijika xa isebenza ngokuvula okuncinci
Ngondoqo omnye, xa i-medium is flow open type, ukuzinza kwevalve kulungile; Xa i-medium ivaliwe, ukuzinza kwevalve kubi. I-valve yesitulo esiphindwe kabini sine-spool ezimbini, i-spool esezantsi ikwi-flow evaliweyo, i-spool ephezulu ikwi-flow evulekileyo, ngoko ke, kumsebenzi omncinci wokuvula, ukuhamba okuvaliweyo kohlobo lwe-spool kulula ukubangela ukungcangcazela kwevalve, oku. sisizathu sokuba ivalve yesitulo esiphindwe kabini ingasetyenziselwa umsebenzi omncinci wokuvula.
Ukusebenza kwe-anti-blocking yevalve ye-stroke ethe tye ayilunganga, kwaye i-anti-blocking performance ye-Angle stroke valve ilungile.
I-spool yevalve yestroke ethe nkqo ibethe nkqo, kwaye indawo ephakathi ihamba ethe tye ukungena nokuphuma kumjelo wegumbi levalve kufuneka ijike umva, ukuze indlela yokuhamba kwevalvu ibenzima kakhulu (imilo efana nohlobo lwe-S olujikiweyo). Ngale ndlela, kukho iindawo ezininzi ezifileyo, ezibonelela ngesithuba semvula yemvula ephakathi, kwaye ekuhambeni kwexesha, kubangela ukuvala. Icala le-Angle stroke valve throttling licala elithe tye, i-medium iqukuqela ingene kwaye iphume ngokuthe tye, kwaye kulula ukuyithatha indawo engacocekanga. Ngexesha elifanayo, indlela yokuhamba ilula, kwaye indawo yemvula ephakathi incinci kakhulu, ngoko i-valve ye-Angle stroke inomsebenzi omhle wokuthintela.
Kutheni isikhondo sevalvu yokulawula istrowuku esithe ngqo sincinci?
Ibandakanya umgaqo olula womatshini: i-sliding friction enkulu kunye ne-rolling encinci. Ivalve yevalve ethe tye isikhondo phezulu nasezantsi intshukumo, ipakisha icinezelwe kancinci, iya kubeka isikhondo sevalve esongelwe ngokuqinileyo, ivelise umahluko omkhulu ngasemva. Ngenxa yesi sizathu, i-valve stem yenzelwe ukuba ibe yincinci kakhulu, kwaye ukupakishwa ngokuqhelekileyo kusetyenziswa kunye ne-coefficient encinci yokupakisha i-PTFE yokupakisha, ukuze kuncitshiswe i-backdifference, kodwa ingxaki kukuba i-valve stem incinci, kulula ukugoba. , kwaye ubomi bokupakisha bufutshane. Ukusombulula le ngxaki, eyona ndlela ilungileyo kukusebenzisa isiqu sevalve yokuhamba, oko kukuthi, i-Angle stroke ye-valve stem, isiqu sayo sevalvu ngama-2 ~ 3 amaxesha atyebileyo kunokubetha okuthe tye kwesiqu sevalve, kunye nokukhetha ixesha elide. -ubomi bokupakisha igraphite, ukuqina kwesiqu kulungile, ukupakisha ubomi bude, i-torque ye-friction incinci, umehluko omncinci wokubuya.
Umahluko woxinzelelo lwevalve yohlobo lwe-Angle stroke mkhulu
Ivalve yohlobo lwe-angular stroke inqumle umahluko woxinzelelo mkhulu, kuba i-medium kwi-spool okanye ipleyiti yevalvu isiphumo samandla kwi-torque ye-rotation shaft incinci kakhulu, ke ngoko, inokumelana nomahluko omkhulu woxinzelelo.
Iivalve zesokhethi endaweni yodwa - kunye neevalve ezinezihlalo ezibini azizange zisebenze
Ivalve yomkhono, eyaphuma ngeminyaka yoo-1960, yayisetyenziswa kakhulu ekhaya nakwamanye amazwe ngeminyaka yoo-1970. Kwiplanti yepetrochemical eyaziswa ngeminyaka yee-1980, ivalve yemikhono yabalelwa kumlinganiselo omkhulu. Ngelo xesha, abantu abaninzi babekholelwa ukuba ivalve yomkhono ingathatha indawo yevalve yesitulo esinye kunye nesibini kwaye ibe sisizukulwana sesibini seemveliso. Namhlanje, oku akunjalo, ivalve yesitulo esinye, ivalve yesitulo esiphindwe kabini, ivalve yesitulo isetyenziswa ngokulinganayo. Oku kungenxa yokuba ivalve yomkhono iphucula kuphela imo yokugobhoza, uzinzo kunye nokugcinwa ngcono kunevalve yesitulo esinye, kodwa ubunzima bayo, izikhombisi zokuvala kunye nokuvuza ziyahambelana nevalve yesitulo esinye kunye nesiphindwe kabini, ingayibuyisela njani ivalve yesitulo esinye nesiphindwe kabini. ? Ngoko ke, kufuneka kwabelwane ngayo.
Indlela yokucoca amanzi kusetyenziswa irabha enemigca yebhabhathane ivelufa, ifluorine ene-diaphragm valve ubomi obufutshane benkonzo
Isiphakathi samanzi sokugalela ityuwa siqulethe i-asidi ephantsi okanye i-alkali, inomhlwa omkhulu kwirabha. I-corrosion ye-rubber ibonakala ngokunyuka, ukuguga kunye namandla aphantsi. Ukusetyenziswa kwevalve yebhabhathane kunye nevalve yediaphragm efakwe irabha imbi. Undoqo kukuba irabha ayixhathisi kukuhlwa. Emva kokuba ivalve ye-rubber lining diaphragm iphuculwe ukuxhathisa umhlwa kwevalve ye-fluorine efakwe kwi-diaphragm, kodwa i-diaphragm yevalve ene-fluorine ene-diaphragm ayikwazi ukuma phezulu naphantsi ukusonga kunye nokwaphukile, okukhokelela kumonakalo womatshini, ubomi bevalve bufutshane. Ngoku eyona ndlela ilungileyo kukusebenzisa ivalve yebhola yokucoca amanzi, ingasetyenziselwa iminyaka emi-5 ukuya kwe-8.
Ukusetyenziswa kwe-pneumatic valve piston actuator kuya kuba ngaphezulu nangaphezulu
Kwivalve ye-pneumatic, i-piston actuator inokusebenzisa ngokupheleleyo uxinzelelo lomthombo womoya, ubungakanani be-actuator buncinci kunefilimu, i-thrust inkulu, i-O-ring kwipiston inokuthenjwa ngakumbi kunefilimu, ngoko iya kuba njalo. zisetyenziswe ngakumbi nangakumbi.
Ukukhetha kubaluleke ngaphezu kokubala
Ukubala kunye nokukhetha xa kuthelekiswa, ukhetho lubaluleke kakhulu, lunzima kakhulu. Ngenxa yokuba ukubala kubalwa kwefomula elula, yona ngokwayo ayixhomekeke kwiqondo lefomula, kodwa kuxhomekeke ekuchanekeni kweeparameters zenkqubo enikeziweyo. Ukukhethwa kubandakanya umxholo omninzi, ukungakhathali kancinci, kuya kukhokelela ekukhethweni okungafanelekanga, kungekhona nje ukubangela inkunkuma yabasebenzi, izixhobo eziphathekayo, izibonelelo zemali, kunye nokusetyenziswa kwempembelelo ayifanelekanga, kuzisa inani leengxaki zokusetyenziswa, ezifana nokuthembeka. , ubomi, umgangatho wokusebenza, njl.
Ngenjikalanga ye-1 kaSeptemba, kwi-"2010 Shanghai (yeSibini) yeForam eshushu yoShishino lwaManzi" ebanjwe yi-China Water Network, i-Shanghai Municipal Engineering Design kunye neZiko loPhando loPhando, ugutyulo lwasezidolophini, i-Shanghai Municipal Drainage Co., LTD., kunye ne-China Association for Inzululwazi kunye neTekhnoloji, i-Zhengzhou Zheng Butterfly valve Co., LTD. Injineli ephezulu uZhao Guoxi wazisa itekhnoloji yemveliso ephantsi yekhabhoni esezantsi.

I-Zhao Guoxi yazisa iintlobo ezintathu ezintsha zeevalvu, ezizezi, i-valve ye-eccentric yesiqingatha sebhola, i-oblique seat hard seal evala ngokucothayo ivalve yokujonga kunye noxinzelelo olupheleleyo ivelufa yokukhupha isantya esiphezulu.

Umzimba wevalve ye-eccentric hemisphere wamkela isakhiwo sebhola, ukuqina kulungile, amandla aphezulu; I-disc ye-valve ithatha isakhiwo se-hemispherical, i-valve shaft ithatha isakhiwo se-semi-axial, kwaye i-disc ye-valve ijikeleza i-90 ° xa ivalwe ngokupheleleyo kwaye ivuliwe ngokupheleleyo. Kwimeko evuleke ngokupheleleyo, i-disc yevalve yonke ingena kumngxuma womzimba, ukuze igumbi elingaphakathi levalvu lonke livuleke. Umzimba wevalve kunye nediski yevalve yokutywinwa komphezulu, usebenzisa itekhnoloji eqinileyo yokujonga i-alloy, ubunzima obuphezulu, ukumelana nokunxiba okuphezulu, inokunqumla isinyithi esiphakathi okanye i-braid sundries; Iyakwazi ukumelana nokukhuhla ludaka okanye i-granular flow medium. Inokususa ngokuzenzekelayo ukungcola kwindawo yokutywina. Idiskhi yeValve ithatha ubume be-eccentricity enkulu, itywina ingaphezulu evulekileyo kwaye ivale, itshintshe eguquguqukayo, ubomi benkonzo ende. Isitywina se-valve shaft senziwe ngeringi yegraphite eguquguqukayo okanye i-O-ring. Isitywina se-shaft sinokutshintshwa kwaye sihlengahlengiswe ngaphandle kokususa isixhobo sokuqhuba.

Isihlalo esithambekele esiqinileyo setywina esicothayo sokuvala ivalve yokukhangela isihlalo sithambekele, ukuvuleka kwevalve kunye nokuvala i-stroke kufutshane, ukuvula nokuvala ukusebenza kulungile. Ipleyiti Butterfly isakhiwo bias kabini, ivalve ukuvula nokuvala intshukumo isengqiqweni. Intsimbi yensimbi engenasici iperi idibanisi, ubomi benkonzo ende, ulondolozo lwasimahla. Izinto zesakhiwo segumbi levalve zineempawu zokuhamba kakuhle, ukuchasana nokuhamba okuncinci kunye nokugcina amandla. Ukuvala ngokukhawuleza kunye nokucothayo, kunokuthintela ngokufanelekileyo isando samanzi. Ipleyiti yebhabhathane/ishafti yevalvu ivulekile kwaye ivale bhetyebhetye, ayibambekanga.

Unengxaki yokukhupha umbhobho wonikezelo lwamanzi, ngamashumi eminyaka yeengxaki zobugcisa kwihlabathi liphela, ngenxa yoxinzelelo lombhobho wamanzi wokukhupha ukungcola, amanzi egesi ahamba ngesigaba sesibini kunye nokusebenza okuzinzileyo, isando samanzi kwibhulorho yokuvala imibhobho, uxinzelelo lwalo rhoqo ukuya kuthi ga kwi-200 ~ 400 m intsika yamanzi. , ezinye izibalo zobunjineli, nokuba phantse iikhilomitha, ngokwaneleyo ukwenza nayiphi na * * idigri zomonakalo wombhobho wonikezelo lwamanzi. Enyanisweni, iiprojekthi ezinkulu zokuhanjiswa kwamanzi kunye neengozi zemibhobho yokuhambisa amanzi ezidolophini zininzi. Ngokutsho kwedatha efanelekileyo, izixeko ezikhulu zaseChina ezifana neBeijing, iShanghai, iHong Kong kunye nezinye inethiwekhi yombhobho wonikezelo lwamanzi umbhobho wonyaka wagqabhuka malunga namaxesha angama-2000, umbhobho wonyaka wedolophu elikomkhulu lephondo wagqabhuka malunga namaxesha angama-1000, esona sizathu siphambili emanzini kukukhupha. ayisimahla. Injongo yophando kuxinzelelo olupheleleyo lwevalve yokukhupha isantya esiphezulu kukusombulula ingxaki yokuphuma komoya kombhobho wonikezelo lwamanzi oxinzelelo ayicocekanga kwaye ayizinzanga, kunye nokunciphisa okanye ukuphelisa ngokupheleleyo isifo esinenkani sombhobho wokuhambisa amanzi ezidolophini. gqabhuka.

Uxinzelelo olugcweleyo lwevalve yokukhupha isantya esiphezulu lunokuba kuxinzelelo lombhobho wamanzi kunye nesigaba segesi phantsi kwemeko yokuqukuqela efanayo, ayivelisi "inkxaso yomoya", inokuqhubekeka isantya esiphezulu sokukhupha ivalve; Akukho mfuneko ye-exhaust encedisayo ye-manual, inokukhupha isantya esiphezulu sayo nayiphi na igesi yombhobho entsonkothileyo ngokwenene; Inomsebenzi ophazamisayo ngokuhambelana neemfuno zethiyori yokukhusela isando samanzi, kwaye inefuthe elihle ekuthinteleni ukuqala kwehamile yamanzi epompo, ukumisa isando samanzi sempompo kunye nokuphelisa umonakalo we-oscillation yoxinzelelo lwepayipi; Isitywina sokukhupha sihambele phambili kwaye sinengqiqo, esoyisa isiphene sokusebenza kwevalve yokukhupha eqhelekileyo ehlala iqhuba amanzi amaninzi.