Valve disc midzi sarudzo uye kutsiva nzira Valve kugadzirisa
Mudzi we disc wevhavha unoshandiswa kuvhara tsvimbo yemukova kana kuvhara diski, iyo inogona kudzivirira kubuda kwekushanda kwekushanda. Iyo valve disc eradication inoita basa rekuisa chisimbiso, asi inodawo kukweshera kudiki nedzinde, haifanire kutadzisa stem chiito. Kusarudzwa kwevhavha disc midzi kunofanirwa kuve kwakavakirwa pamhepo yekushanda, kudzvanywa uye tembiricha, kushandiswa kwe disc zvinhu uye chimiro hazvina kufanana.
Kutanga, kusarudzwa kwevhavha disc midzi
Mudzi we disc wevhavha unoshandiswa kuvhara tsvimbo yemukova kana kuvhara diski, iyo inogona kudzivirira kubuda kwekushanda kwekushanda. Iyo valve disc eradication inoita basa rekuisa chisimbiso, asi inodawo kukweshera kudiki nedzinde, haifanire kutadzisa stem chiito.
Kusarudzwa kwevhavha disc midzi kunofanirwa kuve kwakavakirwa pamhepo yekushanda, kudzvanywa uye tembiricha, kushandiswa kwe disc zvinhu uye chimiro hazvina kufanana.
Tafura 5-1 inonyora kurongeka, kuita, uye mashandisirwo emhando yezvakajairwa disk midzi.
Tafura 5-1 Classification, performance, uye application range ye common disk roots Material pressure
Tembiricha (MPa)
(C) Wepakati donje coil mudzi wedonje tambo yakarukwa tambo, mafuta akanyudzwa donje tambo, rabha donje tambo (pan midzi) ne-pre-oxidation kana carbonization yepolypropylene fiber, impregnated polytetrachlorethylene emulsion (inogona kugadzirwa kuva yakajairika chimiro) PTFE faibha, impregnated PTFE emulsion Iyo inochinjika graphite yekuisa chisimbiso mhete ndeye rectangular muchinjiko chikamu denderedzwa Vaviri, valve disc midzi yekutsiva nzira
Kurongedza kwevhavha kunoda kuchinja, kuda kuisa kurongedza kwekare, asi chenjerera kuti usakuvadza tsvimbo yemukova, ndiro yekuisa chisimbiso uye bhokisi rekuisa, mushure mekutakura kwekare, unogona kushandura kurongedza kutsva, kurongedza kutsva, kutanga kusarudza saizi uye kushanda kunosangana nezvinodiwa zvekutakura, usabvumira kusvika kumusoro uye pasi, kushandiswa muchizvarwa chikuru kana kuputsika, uye ipapo kurongedza kunofanira kuchekwa kuita denderedzwa rimwe, Mufananidzi wemudzi we disc unofanira kuchekwa zvakanaka muAngle yakaoma ye45 °. , uye kureba kwayo kunofanira kuva kwakakodzera. Paunenge uchicheka midzi ye disc, midzi ye disc inogona kuvharwa zvakasimba padanda rakatenderera nehupamhi hwakaenzana nehupamhi hwevhavha yevhavha, uye ipapo mutsara wekucheka unonyorwa usati wacheka. Wedzera iyo yakachekwa coil mhete mubhokisi rekoiri imwe neimwe, uye shandisa kavha yekumanikidza kana ** chishandiso kupuruzira mudzi wecoil uye kubatanidza denderedzwa rega rega. Kuchekwa kwemudzi wega wega coil kunofanirwa kudzika ne90°, 180° kana 90°, 180°.
Kurongedza kune dosi uye yakatsikirira zvakare mvumo yakakodzera, kudzika kwegland kudzvanywa muimba yekurongedza, isingasviki 10% yehurefu hwekamuri yekurongedzera, haifanirwe kunge yakakura kupfuura 20% ~ 30%, uye iyo yakasimba yekurongedza gland, zvimwe. yunifomu, kusimba kwescrew tight packing yakanaka kana uchitenderedza hunde yevharuvhu, kuitira kuti utarise kurongedza simbisa hupamhi hwehunde yevharuvhu, gland tight, inofanira kusimuka, hapana chinotenderera chiitiko.
Kuiswa kweiyo yakaumbwa dhisiki mudzi, inogona kuiswa zvakananga kumucheto wepamusoro wevhavha hunde kunofanirwa kunge kuri kure sezvinobvira kushandisa nzira yekumisikidza yakananga vanhu, apo iyo filler haigone kuve yakananga seti yevanhu, inogona zvakare kushandisa. nzira yekucheka makumbo.
Kugadziriswa kwevhavha 1.1 Kugadziriswa kwevhavha uye nzvimbo dzekuisa kuti utarise
1). Ivhavha inofanira kuiswa muimba yakaoma uye ine mhepo, uye migumo yose yehupamhi inofanira kuiswa chisimbiso uye isina guruva;
2). Kuchengetedza kwenguva refu kunofanira kuongororwa nguva dzose, uye nzvimbo yekugadzira inofanira kunge yakaputirwa nemafuta kudzivirira kuparara;
3) Usati waiswa vharafu, nyatso tarisa kana chiratidzo chiri maererano nezvinodiwa zvekushandisa;
4). Panguva yekuisa, mukati memukati uye chisimbiso chepamusoro chinofanira kucheneswa, uye kurongedza kunofanira kuongororwa kuti ione kana yakamanikidzwa zvakasimba, uye mabhoti ekubatanidza anofanira kusimbiswa zvakafanana.
5). Ivhavha inofanira kuiswa maererano nenzvimbo inobvumirwa kushanda, asi kutarisa kunofanira kubhadharwa pakugadzirisa uye kushanda kwakakodzera;
6) Mukushandiswa, usazarura chikamu chevhavha yegedhi kuti ugadzirise chiyero chekuyerera, kuitira kuti urege kukuvadza nzvimbo yekuisa chisimbiso apo chiyero chekuyerera kwepakati chakakwirira, chinofanira kunge chakanyatsozaruka kana kuvharwa zvakakwana;
7). Paunenge uchitenderedza kana kudzima handwheel, usashandise mamwe marevhisi ebetsero;
8). Zvikamu zvekutapurirana zvinofanirwa kuve zvakazorwa nguva nenguva; Ivhavha inofanira kugara ichizorwa mafuta muchikamu chinotenderera uye stem trapezoidal thread chikamu
9) Mushure mekuisa, kugadzirisa nguva dzose kunofanira kuitwa kubvisa tsvina mukati memukati wemukati, chengetedza nzvimbo yekuisa chisimbiso uye kupfeka kwevhavha stem nut;
10). Panofanira kunge paine seti yesainzi uye yakaringana yekumisikidza zviyero, yekuisa chisimbiso bvunzo inofanirwa kuitwa mukugadziriswa, uye marekodhi akadzama anofanirwa kuitwa kuti aongororwe.
11) Zvimwe zvinhu zvinoda kutariswa:
1) Mavharuvhu anofanirwa kuiswa pamberi pekugadzwa kwepombi. Iyo pombi inofanira kunge yakasikwa, nzvimbo yacho haisi yakaoma kudhonza, kuitira kuti irege kusiya prestress;
2) Usati waisa iyo yakaderera tembiricha vharafu inofanira kunge iri kure sezvinobvira mumamiriro ekutonhora (semumvura nitrogen) kuita yekuvhura nekuvhara bvunzo, inochinjika uye isina jamming chiitiko;
3) Ivhavha yemvura inofanira kugadzirwa ne 10 ° tilt Angle pakati pehunde uye pamwero kudzivirira mvura inoyerera ichibuda kunze kwehunde uye kuwedzera kurasikirwa kwechando; Zvinotonyanya kukosha, zvinodikanwa kudzivirira iyo mvura inobata chisimbiso pamusoro pekurongedza, kuitira kuti itonhore uye yakaoma uye inorasikirwa nekuisa chisimbiso, zvichikonzera kuvuza;
4) kubatanidzwa kwevhavha yekudzivirira kunofanira kunge iri gorofu kudzivirira kukanganiswa kwakananga pavhavha; Mukuwedzera pakuona kuti valve yekuchengetedza haina chando, kuitira kuti irege kushanda kukundikana;
5) kuiswa kwevharuvhu yeglobe kunofanira kuita kuti nzira yepakati inoyerera ienderane nemuseve wakaiswa pamutumbi wevharuvhu, kuitira kuti kumanikidzwa kwevhavha yepamusoro pavhavha yakavharwa, uye kurongedza hakusi pasi pemutoro. Asi kwete kazhinji kuvhurika uye kuvhara uye zvinoda kunyatsoona kuti munzvimbo yakavharwa haibvisi vharuvhu (yakadai sevhavha yekupisa), inogona kunyatso kudzoserwa, nerubatsiro rwepakati kumanikidza kuti ivhare;
6) tsanangudzo huru yevhavha yegedhi, pneumatic control valve inofanira kuiswa vertically, kuitira kuti isarerekera kune rumwe rutivi nekuda kwehuremu hwe spool, kuwedzera kushandiswa kwemagetsi pakati pe spool uye bushing, zvichiita kuti kuputika;
7) Paunenge uchisimbisa screwing screw, valve inofanira kunge iri munzvimbo yakazaruka zvishoma, kuitira kuti irege kukuvadza nzvimbo yekuvhara yevhavha yepamusoro;
8) Mushure mokunge mavharuvhu ose ari panzvimbo, anofanira kuvhurwa uye akavharwa zvakare, uye akakodzera kana achigadziriswa uye asina kunamatira;
9) Mushure mekunge shongwe huru yekuparadzanisa mhepo yatonhodzwa isina, iyo yekubatanidza valve flange inofanoomeswa kamwe mumhepo inotonhora kudzivirira kuvuza pakupisa kwekamuri uye kuvuza pakudzika kwakadzika;
10) Zvinorambidzwa zvachose kukwira tsinde yevhavha se scaffold panguva yekuiswa
11) Iyo yakakwira tembiricha valve pamusoro pe200 ℃, nekuti kuisirwa kuri pakamuri tembiricha, uye mushure mekushandiswa kwakajairika, tembiricha inokwira, bhaudhi iri kuwedzera kupisa, gaka rinowedzera, saka rinofanira kusimbiswa zvakare, rinonzi "hot tight" , mushandisi anofanira kutarisisa basa iri, zvikasadaro zviri nyore kudonha.
12) Kana mamiriro okunze achitonhora uye valve yemvura yakavharwa kwenguva yakareba, mvura iri shure kwevhavha inofanira kubviswa. Mushure mokunge vheji yemhepo inomira mhepo, mvura yakanyungudutswa inofanirawo kubviswa. Pasi pevhavha inoshanda sevhavha yewaya, iyo inogona kuvhurwa kuti ibudise mvura.
13) Mavharuvhu asina-simbi, mamwe akaomarara, mamwe mashoma simba, kushanda, kuvhura uye kuvhara simba hakugone kuve kwakakura, kunyanya haigone kuita yakasimba. Uyewo chenjerera kuti udzivise kuputika kwechinhu.
14) Kana iyo vheji nyowani inoshandiswa, iyo yekurongedza haifanirwe kudzvanywa zvakanyanya kuti irege kudonha, kuitira kuti udzivise kudzvinyirira kwakawanda pahunde, mhanyisa kupfeka, uye kuvhura uye kuvhara.
1.2 Operation system uye saiti yekushandisa
1.2.1 Panguva yekuvaka, kontrakta yekuvaka, dhipatimendi rekuchengetedza, dhipatimendi rekugadzira fekitori nechikamu chekuvaka zvichanyatso kurongedza kujekesa chiyero chebasa rekushanda.
1.2.2 Munhu anoona nezvenguva yakazara achashanda panzvimbo munzvimbo yake yebasa rekushanda.
1.2.3 Paunenge uchibvisa kana kuisa valve, kugadzirwa kwezuva nezuva mukati meimwe nharaunda inobatwa nekushanda uku kunofanira kuchinjwa uye kurongwa maererano, uye svikiro mupombi inofanira kugurwa.
1.2.4 Nzvimbo yekuvhiya inodiwa pakuvhiya ichave nechokwadi panzvimbo yekuvhiya.
1.2.5 Zvikamu zvinotsigira zvakakodzera kurema kwevhavha zvichaiswa panzvimbo yekushanda kudzivirira sag yevhavha uye pipe center offset.
1.2.6 Mushure mekupedzwa kwekushanda, kugadzirira kunofanira kuitwa kuedzwa kwekumanikidza, kuedza kwemhepo yemhepo, kuongorora kusina kukanganisa uye zvimwe zvinhu zvekuongorora.
1.2.7 Kushanda kusati kwapera, pombi network ichacheneswa mukati, uye ndiro yakapofumadza papombi ichasimbiswa kubviswa, uye valve inoshandiswa panguva yekuvaka ichadzorerwa kunzvimbo yekuzarura nekuvhara isati yavakwa. .
1.3 Chengetedzo yekuisa valve
1.3.1 Pamberi pekuisa valve, ichasimbiswa kuti valve inosangana nezvinodiwa zvekugadzira uye zviyero zvakakodzera.
1.3.2 Pakubata nekuisa mavharuvhu, chenjerera mapupu nekukweshwa
1.3.3 Usati waisa vharafu, mukati mepombi inofanira kucheneswa kubvisa tsvina yakaita sesimbi uye kudzivirira mitumbi yekunze kuti isapinda muchigaro chevhavha chivharo. Mukuwedzera, valve inofanira kuiswa munzvimbo yakavharwa.
1.3.4 Kusimudza vharafu kushanda. Iyo valve ICHASIMURWA ZVAKAKODZERA PANE CHINHU CHAKAKUSIMUSA, UYE HAICHASIMUDZIDWE KANA KUDZWA PASI pesimba renzvimbo.
1.3.5 Paunenge uchiisa chivharo, zvakakosha kusimbisa kana kuyerera kwekuyerera kwepakati, fomu yekuisa uye nzvimbo yehandwheel inosangana nemitemo.
1.3.6 Kuiswa kwemavharuvhu ekubatanidza flange.
(1) Iyo flange pamusoro pevharuvhu uye pombi haifanirwe kuve isina kukuvara, mavanga, nezvimwe, uye igare yakachena. Kunyanya, kushandiswa kwesimbi gaskets (oval kana octagonal chikamu), flange grooves uye gaskets inofanira kuenderana, kupfekedzwa nemutobvu mutsvuku wekufananidza, kuve nechokwadi kuti chisimbiso chiri mumamiriro akanaka.
(2) The perpendicularity of the flange surface on pombi uye mutsara wepakati wepombi uye kukanganisa kwegomba rebhoti reflange rinofanira kunge riri mukati mehuwandu hwehuwandu hunobvumirwa. Valve uye pombi yepakati mutsetse inofanirwa kuenderana isati yaiswa.
(3) Kana uchibatanidza maflange maviri, chekutanga, iyo flange yekuisa chisimbiso kumeso uye gasket inofanira kudzvanywa zvakaenzana, kuitira kuti ive nechokwadi chekuti flange yakabatana nekufanana kwebhaudhi kushushikana.
(4) Pakusunga mabhaudhi, shandisa chipanera chinofanana nenzungu. Paunenge uchishandisa kudzvanywa kwemafuta uye pneumatic maturusi ekusimbisa, teerera kuti usapfuure iyo yakataurwa torque.
(5) Kusungirirwa kweflange kunofanira kudzivirira simba risina kuenzana, uye kunofanira kusimbiswa kuitira mugwara rekuenzanisa uye kuenderana.
(6) Mushure mekuisa flange, ita shuwa kuti mabhaudhi nenzungu dzakasimba uye dzakafanana.
(7) Zvinhu zvemabhoti uye nzungu zvinofanira kusangana nemitemo. Mushure mekutsanya, musoro webhaudhi unofanirwa kuburitswa kubva kune nati mbiri pitch yakakodzera.
(8) Bolt uye screw fastening, kuitira kudzivirira vibration kunokonzerwa nekusunungura, kushandisa gaskets. Kuti udzivise kunamatira pakati peshinda pakupisa kwepamusoro, zvikamu zveshinda zvinofanirwa kuputirwa ne-anti-adhesion agent (molybdenum disulfide) panguva yekuisa.
(9) Pamavharuvhu ari pamusoro pe200 degrees Celsius, mabhaudhi ekubatanidza maflange, mabhaudhi anovhara, mabhaudhi anosimbisa mabhaudhi uye mabhaudhi evhavha evhavha anoiswa anofanira kusimbiswa zvakare mushure mekukwira kwekushisa.
(10) Iyo yakaderera tembiricha vharafu inoiswa mumamiriro ekupisa kwemuchadenga. Mukushandiswa kunoshanda, kana iyo yepakati ichipfuura, inova yakaderera tembiricha mamiriro. Nekuda kwekugadzirwa kwekusiyana kwekushisa, flanges, gaskets, mabhaudhi uye nzungu, nezvimwewo, inoderera, uye nekuti zvinhu zvezvikamu izvi hazvina kufanana, mutsara wavo wekuwedzera coefficient wakasiyanawo, uchigadzira nyore kwazvo kudonhedza mamiriro ekunze. Kubva pamamiriro ezvinhu aya echinangwa, kana kuomesa mabhaudhi pakupisa kwemuchadenga, torque iyo inofunga nezve contraction zvinhu zvechikamu chimwe nechimwe pakudziya kwakadzika kunofanirwa kutorwa.
1.3.7 Kuiswa kwemavharuvhu ekubatanidza
(1) Kugadzirwa kwemasoketi majoini uye butt welding groove kunofanirwa kuve kwakaringana uye kuenderana nezvinodiwa.
(2) Panguva yewelding, kudzivirira machipisi esimbi nebhinzi dzakakandwa kuti dzisapinda muchubhu, tungsten inert gasi welding inofanira kushandiswa.
(3) Kana welding, vharuvhu inofanira kunge yakavhurika zvishoma.
(4) Welding zvinhu zvinofanira kusarudzwa zvakarurama maererano nevhavha uye pombi zvinhu. Paunenge UCHISHANDISA COATED electrode, tarisa mamiriro ekuchengetedza e electrode uye simbisa kana yakakodzera kuomeswa kwemagetsi akavharidzirwa anotorwa.
(5) Vashandi vanoita basa rekugadzira magetsi vachasangana nezvinodiwa nemagetsi emagetsi.
(6) Kana kupisa kurapwa kuchidikanwa mushure mekuputira, nguva uye tembiricha curve rekodhi yekupisa kurapwa kunofanirwa kuongororwa.
(7) Zvikamu zvewelding zvichaongororwa nemaziso kana kuti zvisingaparadzi zvichiongororwa kuti zvionekwe kuti hapana kutsemuka, welding nodules, edge bites uye zvimwe zvinokuvadza.
Nguva yekutumira: Aug-20-2022
