Valve inowanzo shandiswa maviri ekubatanidza maitiro emagetsi chirimwa mainvhavha kugadzirisa

Valve inowanzo shandiswa maviri ekubatanidza maitiro emagetsi chirimwa mainvhavha kugadzirisa

Zvisungo zvakabatanidzwa
Iyi inzira yekubatanidza iri nyore uye inowanzoshandiswa nemavharuvhu madiki. Pane mamwe macakesi maviri:
1, chisimbiso chakananga: tambo dzemukati nekunze dzinotamba zvakananga basa rekuisa chisimbiso. Kuti uone kuti mubatanidzwa haudonhe, kazhinji nemafuta ekutungamirira, linoleum uye PTFE raw material yakazadzwa; Ptfe raw material bhandi, kushandiswa kwezuva nezuva; Ichi chinyorwa chine kunaka kwekusagadzikana kwekuora, kuisa chisimbiso, nyore kushandisa uye kuchengeta, uye inogona kubviswa zvachose kana yakaparadzaniswa, nokuti ifirimu isiri-viscous, yakanyanya kukunda mafuta ekutungamirira uye linoleum.
2. Kuisa chisimbiso chisina kunanga: simba rekusimbisa screw rinotamirwa kune washer pakati pezvikepe zviviri, kuitira kuti washer iite basa rekuvhara.
KUWUNGA KWEZVINHU ZVAKASIYANA, KUSVIRA, KANA ZVINHU ZVINHU ZVOKUPEDZA MUMUTSARA ZVINOGONA KUDZIDZISA KUshanda kwevharuvhu uye kukuvadza zvakanyanya ZVINHU ZVINHU ZVAKASIYANA. Mukati mepombi inofanira kunyatsocheneswa nemhepo kana mhepo.
Kana UCHIBATA BOMBO, EDZA UKURU UYE UREBU HWEPOMBO TENZI KUTI UDZIVIRIRE KUBVUKA PAPO NEZVIGARO nemadhisiki.
Kunoperera shinda kwakachena kudzivirira simbi kana simbi inokuvadza. Shandisa teflon tepi kana zvinonamira pombi kune maweld akasimba. Shandisa zvinonamira zvepombi chete mune zvidiki pashinda dzepombi, asi kwete pashinda dzevharuvhu. Usabvumire chero zvinonamira zvepombi kuti zviyerere MUMUVIRI kuti udzivise kukuvara kuDISC NESEAT.
Usati waiswa, cheka kuyerera kuburikidza nevhavha kuitira kuti valve ishande zvakanaka. Vhara vharafu zvachose usati waiswa. Isa chipanera pamusoro wehekisi bhaudhi pedyo nepombi kudzivirira deformation inobvira. Mushure meKUISA vharafu, TSIGIRA POMBO: KUSVIRA pombi kunogona kukanganisa valve uye kukonzera kukundikana.
Flange kubatana
Iyi ndiyo nzira yakajairika yekubatanidza inoshandiswa mumavharuvhu. Zvinoenderana nechimiro chejoint surface, inogona kukamurwa kuita zvinotevera:
1. Smooth type: inoshandiswa kune mavharuvhu ane low pressure. Yakanakira kugadzirisa
2, concave uye convex mhando: yakakwirira kushanda kumanikidza, inogona kushandiswa mune yakaoma washer
3. Tenon uye groove type: gasket ine hombe yepurasitiki deformation inogona kushandiswa mune corrosive media, uye yekuisa chisimbiso iri nani.
4, trapezoidal groove type: ine oval metal mhete sewasher, inoshandiswa mukumanikidza kushanda kwe64 kg/cm2 vharafu, kana tembiricha yevharuvhu.
5, mhando yelenzi: washer chimiro che lens, chakagadzirwa nesimbi. Kune mavharuvhu ePRESURE akakwira NEKUSHANDA KUDIKIRWA KWE100 kg/CM2, kana mavharuvhu ekupisa.
6, O mhando yemhete: Iyi imhando nyowani yekubatanidza flange, inogadzirwa nekutaridzika kwemarudzi ese erubha O ring, inovimbika kupfuura iyo yakazara flat washer mukuisa chisimbiso.
Kuti uve nechokwadi chekuisa kwakakodzera kwekubatana kweflange, tevera matanho aya. Kutanga nekunyatsochenesa majoini, wobva wasunungura mabhaudhi maviri kana matatu pachigadziko. Zvadaro, nyatsoisa spacer mujoini. Iyo yepasi bhoti inobatsira kuisa gasket uye kuichengeta munzvimbo. Insert mabhaudhi anofanirwa kuchinjika-akasungwa kwete WRAPAROUND, iyo inobatsira kubvisa yakawandisa kudzvanywa. Mushure mekushandisa zvakajairika kwenguva yakati rebei, tarisa kuti mabhaudhi ese akasungwa uye simbisa zvakare sezvinodiwa.
Ivhavha yekutarisa yevhavha huru mumagetsi emagetsi ivhavha inoshandiswa kudzivirira kudzoka kwepakati mumapombi nemichina. Iyo exhaust cheki vharafu inoiswa pane imwe neimwe pombi yekuburitsa yekunze hita mumhepo yekudzoreredza system yeiyo steam turbine set. Basa rayo nderekuvhara ndiro yevharuvhu otomatiki kana yuniti ichirasa mutoro, kuitira kudzivirira chiutsi chiri padivi rehutsi uye pombi inopinza chiutsi kuti isadonha ichidzokera muturbine yehutsi uye kuita kuti turbine yehutsi iwedzere kumhanya kudzivirira. tsaona.
Kugadziriswa kwemavharuvhu makuru
1. Kubvisa cheki valve
A cheki vharafu ivharuvhu rinoshandiswa kudzivirira backflow midhiya mumapombi uye midziyo. Iyo exhaust cheki vharafu inoiswa pane imwe neimwe pombi yekuburitsa yekunze hita mumhepo yekudzoreredza system yeiyo steam turbine set. Basa rayo nderekuvhara ndiro yevharuvhu otomatiki kana yuniti ichirasa mutoro, kuitira kudzivirira chiutsi chiri padivi rehutsi uye pombi inopinza chiutsi kuti isadonha ichidzokera muturbine yehutsi uye kuita kuti turbine yehutsi iwedzere kumhanya kudzivirira. tsaona.
Ivhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhadhi yeinounzwa kunze kwenyika 300MW imhepo inodzorwa swing check valve, chimiro chinoratidzwa mumufananidzo, uye chimiro chechigaro chinodzorwa nemhepo chinoratidzwa mumufananidzo. Iyo inonyanya kuumbwa nemuviri wevharuvhu, ndiro yevhavha, shaft, sleeve uye zvichingodaro. Chigaro chekudzora mweya chinoumbwa nepiston, cylinder block, gonhi tsvimbo uye chitubu.
Kubvisa vharafu isina kudzoka muyakavharwa unit yekutanga, pamatanho ese eheater anotanga, kutorwa zvisina tsarukano kusingadzose vharuvhu pneumatic kudzora kwemhepo inotora, tsvimbo yepiston inotyaira rocker ruoko kutenderera, cheki valve shaft sleeve yevhavha plate axis muganhu. kuvhurika, vharafu ndiro iri akasununguka mamiriro, nokubvisa chiutsi kumanikidza kuvhura vharafu ndiro, chiutsi kuburikidza vharafu kupinda hita.
Munguva yekushanda kwakajairika kweyuniti, cheki chevhavha ndiro inochengetwa munzvimbo yakajairika yakavhurika nekuda kwekuita kwekumanikidza kwekubvisa. Kana iyo unit inorasa mutoro kuti umire, iyo yekubvisa mhepo yekumanikidza inodonha, ndiro yevharuvhu inoenderana nehuremu hwayo nekukurumidza kudzoka pachigaro, vharafu inovharwa, kuitira kudzivirira heater uye chiutsi mupombi kudzokera kune steam turbine, kuti uwane basa rekudzivirira
Basa rekugadzirira risati radzokororwa kwevhavha yekutarisa yekubvisa ine zvinotevera zvirimo:
Mushure mokunge ZVINHU ZVAKAMISA SERVICE, KUDZIVIRIRA UYE SIMBA nemhepo zvitubu ZVAKADZWA, mhepo inopinza uye inobuda majoini echigaro chekutonga kwemhepo ichasunungurwa, mapini akabatanidzwa nepiston tsvimbo yechigaro chekutonga uye cheki chevhavha yevhavha inofanira kusunungurwa. kubviswa, uye chigaro chekutonga chichabviswa mushure mekusunungura mabhoti ekugadzirisa echigaro chekutonga uye kuiswa kwehuwandu. Zvadaro, enda kune rinotevera basa.
1, kuparara kwevharuvhu
(1) Chekutanga, maka kuwirirana kuri pakati pekepisi nemuviri wevharuvhu nechiratidzo, wozosunungura kepisi kuti ubvise kepisi.
(2) Bvisa bhero, mafuta ekuchengetedza mhete uye lever padivi rekubatanidza revhavha uye chigaro chekudzora mhepo, uye uzviise munzvimbo yakagadziriswa.
(3) Sunungura chisimbiso chivharo chikuru chevhavha uye bvisa mhete huru.
(4) Mushure mekuita zviratidzo zvekufananidza, sunungura mabhaudhi ekugadzirisa echitsigiro chikuru, bvisa chitsigiro chikuru, uye uise.
(5) Bvisa lever shaft uye bushing, uye uzviise.
(6) Bvisa bhaketi diki uye zvishongedzo padivi reshaft yerocker ruoko wozviisa.
(7) Sunungura nati inogadzirisa pane diki dzvinyiriro mhete, bvisa diki dzvinyiriro mhete, uye isa quantitatively.
(8) Mushure mekuita chiratidzo chekufananidza, sunungura bhaudhi yekugadzirisa pachifukidziro cheflange, bvisa chifukidzo cheflange, woiisa.
(9) Bvisa rocker ruoko uye spool, woisa.
(10) Bvisa ruoko rwedombo uye spool, uzviise.
2, kuongororwa kwevhavha yekuchenesa
(1) Tarisa mutsetse wevharuvhu pane spool uye muviri wevharuvhu. Mutsara wevharuvhu haufanirwe kunge uine ma grooves, pores uye zviteshi zvepasi rakachinjika sealing iro rinokanganisa kuvharika kwekuita, uye rinofanira kunge rakabatana zvizere pasina kukanganisa. Kana kukanganisa kunokanganisa kushanda kwechisimbiso kunowanikwa, kugaya uye mamwe marapirwo anofanirwa kuitwa.
(2) Tarisa kuwirirana pakati pevhavha butterfly uye rocker arm, gadzirisa gasket uye rocker arm gap pakati pe 1 ~ 1.2mm, haifaniri kunge yakakura kana kuti duku, zvisinei inofanira kugadziriswa. Kubatana kwenzungu pakati pevharuvhu butterfly nerocker arm kunofanira kunge kwakasimba, iyo welding yekubatanidza inofanira kunge yakazara uye isina kutsemuka, uye mukaha uripo pakati pevharuvhu butterfly shaft uye rocker ruoko mhete inofanira kusangana nezvinodiwa.
(3) Chengetedza kubvumidzwa pakati pe lever shaft, rocker shaft uye saizi bushing uye ruoko rwakakandwa runofanira kusangana nezvinodiwa, uye pamusoro peimwe shaft uye mukati memadziro emukati mebhuranzi inofanirwa kuve yakatsetseka uye yakachena pasina makomba.
(4) Tarisa kurongedzerwa muvhavha hombe yechisimbiso nevhavha yeflange, inofanira kunge yakazara, kana paine kukuvara kunofanira kutsiviwa.
(5) Tarisa kuti nzvimbo yekuvharisa yevhavha cap uye muviri wevharuvhu unofanirwa kunge wakazara, pasina magrooves, tracholes uye kuburikidza nekukwenya kunobata chisimbiso mhedzisiro.
(6) Chenesa uye tarisa nzvimbo yekuisa chisimbiso pamubatanidzwa wetsigiro, chifukidziro cheflange uye imba yevharuvhu, uye gasket rekare rakanamirwa pachisimbiso chepamusoro chinofanira kucheneswa uye kufoshorwa kure. Nzvimbo yekuisa chisimbiso haizove neyakaremara inokanganisa kuiswa chisimbiso.
(7) Makiyi ese nemakiyi anofanira kucheneswa uye akabatana nemazvo.
3, gungano revharuvhu
Pamberi pevhavha yaiswa, pamusoro peimwe shaft uye bushing inofanira kukwizwa ne molybdenum disulfide poda kusvikira ichipenya. Gungano rinofanira kuitwa maererano nechiratidzo chegungano munhevedzano yakatevedzana yekuputsa. Aya mapoinzi anotevera anofanirwa kutariswa pakuita gungano:
(1) Mushure mekunge butterfly yevharuvhu yabatanidzwa nerocker arm, ukobvu hwekugadzirisa gasket hunogona kugadziriswa kuti ive nechokwadi chekuti Angle yevhavha butterfly switch inosvika paAngle inodiwa nemugadziri. Mushure maizvozvi, nati inosimbisa inofanira kunge yakasungirirwa zvakasimba nevhavhavhavhavhavha.
(2) Kana iyo lever shaft, rocker shaft uye rocker ruoko zvaunganidzwa, iyo lever shaft uye rocker ruoko kupera, kugadzirisa gasket ye rocker arm shaft uye rocker ruoko kupera kunofanirwa kunge kune gap re1 ~ 1.20mm.
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(4) Mukuita kurongedza kumativi ese ari maviri, kuita kweakisi imwe neimwe (lever shaft, rocker shaft) inofanira kuve nechokwadi kuti inochinjika uye kwete kunamatira.
(5) Yese gaskets inofanirwa kuvandudzwa.
4, kuparara kwechigaro chekutonga
(1) chivharo chepamusoro chechigaro chekutonga uye cylinder block, cylinder block uye chigadziko ndiwo mamakisi egungano, bvisa mabhaudhi mapfupi mumabhaudhi ekusungirira ecylinder nechigadziko, woaisa.
(2) Sunungura nuts dzemabhaudhi maviri akareba panguva imwe chete kana kuti zvakasiyana, uye zvichaitwa zvishoma nezvishoma (zvichienderana kana zvichisunungurwa zvichienderana) kusvikira zvasunungurwa, uye mabhoti achagadziriswa uye akaiswa.
(3) chivharo chepamusoro chechigaro chekutonga, cylinder block uye chigadziko zvakaparadzaniswa, piston, tsvimbo yegonhi uye chitubu zvinobviswa, uye nzvimbo inoiswa.
(4) Bvisa pini yecotter uye hexagonal groove nut, kuitira kuti piston tsvimbo nepiston zviparadzanise, zvakagadziriswa kuiswa.
(5) Tarisa uye uchenese chigaro chekutonga.
1) Tarisa kuti madziro emukati episton cylinder anofanira kunge akatsetseka.
2) Tarisa cylindrical compression chitubu, uye rekodha kureba kwechirimo mune yakasununguka mamiriro, kuti uenzanise neyekare (mushure) kuchengetedza.
3) Tarisa piston tsvimbo uye piston pamusoro inofanira kuva yakatsetseka.
4) Tarisa nzvimbo yekuisa chisimbiso chevhavha yepamusoro, silinda block uye base yekubatanidza inofanira kunge yakamira, uye kuchenesa.
(6) Kuiswa kwechigaro chekutonga. Kuisirwa uye kuunganidzwazve kwechigaro chekutonga kunofanirwa kuitwa zvinoenderana neyakapokana nhanho yedisassembly, uye anotevera mapoinzi anofanirwa kutariswa kune:
1) Imwe neimwe yekuisa chisimbiso O-ring inotsiviwa neitsva, tsiva tembiricha inodzivirira rabha, mhando yekuisa chisimbiso mhete;
2) madziro emukati emuviri wecylinder uye pamusoro pepiston inofanira kuputirwa nesilicone girisi kuti ive nechokwadi chekuzora;
3) Mushure mokunge chigaro chekutonga kwemhepo chaiswa, chirwere chisina chinhu chepiston tsvimbo inotaridzirwa nemhepo yakamanikidzwa, iyo inofanira kusangana nezvinodiwa nemuiti, uye chiito chepiston rod chinofanira kushanduka uye chinopfuurira pasina kunamatira chiitiko.
(7) cheki chese. Gadzirisa chigaro chekutonga pane muviri wevharuvhu, uye batanidza nerevheti yevhavha, batanidza iyo yakamanikidzwa yemhepo yekubatanidza, uye ita cheki yakazara. Zvinodiwa:
1) Mushure mekuungana nevhavha yekutarisa yekubvisa, kufamba kwemhepo yakamanikidzwa kunofanirwa kuenderana nekufamba kwakatarwa nemugadziri.
2) Muchiito chekuchinja, chiitiko chese chinofanira kuramba chichichinjika, pasina chinobatika chiitiko.
3) Chiratidzo chekuvhura chevhavha chinofanira kutariswa nenzira kwayo, uye shanduko yekuita inofanira kuongororwa pamwe chete nekutonga kwekupisa. Iyo yakavhurika uye yakavharika ratidziro inopindirana nechaiyo chinzvimbo chiratidzo chevhavha, uye iyo yekusimbisa yapera.
Chechipiri, chivharo chemusungo
1, kuiswa kwe
Steam turbine drain system chikamu chakakosha cheiyo steam turbine thermal system, kunyanya, chiutsi chikuru uye kudzoreredza turbine turbine ontology uye high pressure mavharuvhu, inopa nyowani nyowani yekudonha pombi turbine uye imwe yakakosha yekudhonza vharafu, muyuniti inodziya pombi, yakajairika hydrophobic. zvinodiwa panguva yakakodzera, uye mukushanda kwakajairika kwechikwata, kugura vharafu kuti ive yakavimbika, pasina kubuda. Kana iyi misungo ichidonha, kukanganisa kwekushanda kweyuniti kuri pachena.
Tichifunga izvi, kuunzwa kwe300MW steam turbine unit yemamwe akakosha mavharuvhu ekudhonzera mavharuvhu anounzwa kunze kwenyika, chimiro cherudzi rwegasi rekudzora mashandiro evharuvhu-yekuchekwa-nzvimbo mbiri. Iyo globe valve ine zvakanakira chimiro chakareruka, chisimbiso chakanaka uye kugadzirisa. Iyo globe valve ine pneumatic control mechanism, iyo inoita kuti vharuvhu ishande nekukurumidza uye inoteerera, uye inogona kuzadzisa zvirinani zvinodiwa zveyuniti otomatiki. Iyo pneumatic control chikamu chigadzirwa cheAmerican VALTEK kambani, uye chikamu chemuviri wevhavha ndicho chigadzirwa cheAmerican ONVAL kambani. Chimiro chevhavha chinoratidzwa mumufananidzo, uye chimiro chekugadzirisa mhepo chinoratidzwa mumufananidzo.
2, kuchengetedza musungo
Sezvo vharafu inoumbwa nezvikamu zviviri, nzira yekudzora uye muviri wevhavha, kuparara kunoitwa mumatanho maviri.
(1) Kubviswa kwemaitiro ekugadzirisa.
4) Bvisa iyo yakamanikidzwa yemhepo pombi inlet joint, solenoid valve, chiito switch uye zvimwe zvikamu zvakabatana nemhepo yekudzora michina, uye zviise.
5) Bvisa iyo manual operation device ye control machine woiisa.
6) Sunungura ese echitubu compression bolts kumusoro kweiyo control mechanism.
7) Sunungura bhaudhi rekusungirira pakubatana pakati pechigadziro chekudzora uye chidzitiro chevharuvhu, uye fambisa mhete yekusungira zvishoma kumusoro.
8) Sunungura bhaudhi yekubatanidza paHaff lock block inogadzirisa chigaro chekutonga pamutumbi wevhavha, bvisa mabhuroki maviri ekuvhara, batanidza mabhuroki maviri ekuvhara nemabhoti, wobva waaisa.
9) Sunungura nut yekubatanidza pakati pevhavha yegonhi revhavha uye nzira yekudzora ine wrench kusvikira iyo nzira yekudzora yabviswa kubva mumuviri wevhavha uye nzira yekudzora yakaiswa.
(4) Tarisa kuvharika kwakapetwa kaviri kwevhavha uye mhete yekuisa chisimbiso paplate yevharuvhu. Kana mhete yekuisa chisimbiso yakakuvadzwa zvakanyanya panguva yekushandiswa kwevhavha uye inokanganisa kuiswa chisimbiso chevhavha, mhete yekuisa chisimbiso inofanira kuchinjwa nenguva.
(5) Wona kuti valve switch stroke uye urefu muganho mushure mekutarisa chisimbiso chevharuvhu chakamira. Panguva ino, vashandi vari mupombi vanofanira kunyatsotarisa uye kutarisa, kusimbisa kuti yakajairika muganhu chiito chevhavha yemagetsi switch ndeyechokwadi, kubvisa mabasa, midziyo nezvimwe zvinhu zviri mupombi, kuburitsa vashandi, uye kudzorera gomba. gonhi.