[dry goods] chirimwa chemagetsi chikuru vharafu kugadzirisa DQW chikamu cheiyo rotary actuator inoshanda nyaya dzevharuvhu
A cheki vharafu ivharuvhu rinoshandiswa kudzivirira backflow midhiya mumapombi uye midziyo. Iyo exhaust cheki vharafu yakaiswa pane imwe neimwe pombi yekuburitsa yekunze hita muutsi hwekudzoreredza 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. Extraction check valve
A cheki vharafu ivharuvhu rinoshandiswa kudzivirira backflow midhiya mumapombi uye midziyo. Iyo exhaust cheki vharafu yakaiswa pane imwe neimwe pombi yekuburitsa yekunze hita muutsi hwekudzoreredza 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, kukuya 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 nekuremara kunokanganisa 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 zviparadzaniswe, 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 ikadonha, 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.
Nguva yekutumira: Aug-13-2022
