Kuongorora kwevhavha uye matanho ekusarudza Valve chikamu kutadza kunokonzera uye kugadzirisa

Kuongorora kwevhavha uye matanho ekusarudza Valve chikamu kutadza kunokonzera uye kugadzirisa

Performance test: iyo yekutanga kuita kwevhavha kunosanganisira simba, kuvhara, kuyerera kuramba, chiito uye hupenyu hwebasa hwezvinhu zvishanu. Zvigadzirwa zvevhavha pamberi pefekitari zvinofanirwa kuve bvunzo dzesimba uye chisimbiso chekuita bvunzo, kune mamwe mavharuvhu akakosha, anofanirwa kunge ari mubatch samples yekuyerera kuramba, kuita uye hupenyu hwebasa zvinhu zvitatu zvekuyedzwa kwekuita, kuti vharafu yekudzivirira iite yakavhurika kudzvanywa, kumashure kumanikidzwa. uye displacement test; Kuti vharuvhu inoderedza kumanikidza kuita sensitivity test; Kuti trap iite displacement test…
Kuongorora kwevhavha
Iyo fekitori yemhando yekuongorora yezvigadzirwa zvevharuvhu inofanirwa kuitwa zvinoenderana neakakodzera nyika zviyero uye indasitiri zviyero. Kana chitupa chakakodzera chichidikanwa, ndapota chitsanangurire paunenge uchiisa odha, uye muripo wakakodzera unochajwa zvinoenderana nezviri mubvunzo.
1 Kuongorora kwefekitori kwemavharuvhu kazhinji kunosanganisira zvinotevera zvitatu zviri mukati:
● Tarisa kana zvinhu, blank, machining uye gungano revhavha rinosangana nehutano hwehutano;
● Muedzo wekuita: basa rekutanga revhavha rinosanganisira simba, kuvhara, kuyerera kwekudzivirira, chiito uye hupenyu hwebasa rezvikamu zvishanu. Zvigadzirwa zvevhavha pamberi pefekitari zvinofanirwa kuve bvunzo dzesimba uye chisimbiso chekuita bvunzo, kune mamwe mavharuvhu akakosha, anofanirwa kunge ari mubatch samples yekuyerera kuramba, kuita uye hupenyu hwebasa zvinhu zvitatu zvekuyedzwa kwekuita, kuti vharafu yekudzivirira iite yakavhurika kudzvanywa, kumashure kumanikidzwa. uye displacement test; Kuti vharuvhu inoderedza kumanikidza kuita sensitivity test; Kuti musungo uite displacement test;
● Mavara ekuongorora uye chitupa chekupfapfaidza pendi, kurongedza uye zvimwe zvinhu zvinoenderana nezvinodiwa, chitupa chechigadzirwa nemirayiridzo yechigadzirwa uye mamwe magwaro ehunyanzvi akazara.
● Kutarisa kwehukuru: chengetedza ukuru hwekuguma kwekubatanidza uye chinhambwe pakati penzvimbo.
(Mufananidzo 1) Yakabatanidzwa bhora vharafu rutivi rwekusimudza rudzi
Kuunzwa kwezvinhu zvakakosha zvekuongorora mukugadzira maitiro
● Kemikari yakagadzirwa
Asati akanda, kuumbwa kwechoto chega chega kunoongororwa ne spectral analyzer, uye maumbirwo acho anokodzera asati akanda.
● Metallography, mechanical properties parameters, kuoma
◆ Heat kurapwa (austenitic Stainless simbi CF8, CF8M, CF3M uye dzimwe yakasimba mhinduro kurapwa; Pashure normalizing kabhoni simbi), metallographic ongororo inoitwa uye metallographic mapikicha vasara. Unqualified not turn odha
◆ Paunenge uchikanda, choto chimwe nechimwe chine 2 chiyero chekuedza mbariro uye 2 zvidimbu zvekuedza (nezvakafanana zvigadzirwa zvechoto zvine nhamba imwechete yevira yekutsvaga kutonga), mushure mekupisa kupisa -
(Mufananidzo 2) maviri-chidimbu bhora valve
① Imwe yetsvimbo yekuyedza yakatorwa kuti iite bvunzo yekutemesa nemuchina wekutemesa wekuyedza kuti uwane michina ine chekuita nema paramita: kusimba simba, goho simba, kurebesa, kuderedza nzvimbo.
② Imwe yezvienzaniso yakaedzwa neBrinell kuomarara tester kuti iwane kuoma kweHB kukosha; Kana zvichidikanwa, cheka kuita zvimedu zvekuyedza zvine maitiro ekuyedza emuchina bvunzo, kuti uwane kukosha kwekukanganisa
3
(Mufananidzo 3) yakasanganiswa bhora vharafu pamusoro mounting mhando
● Electrostatic test
Mushure mekusangana kwevharuvhu uye kusati kwaedza kudzvanywa, munzvimbo yakaoma, shandisa mita yepasirese kuti uedze kuramba kwe12 VDC, zvinoenderana neAPI608 kuramba ≤10 ohms (Cherechedza: Kumhanya-mhanya kuburikidza nemvura iri mukati mepombi, kukwesha kuri nyore kugadzira static. magetsi, nekuti yekuvharisa magetsi, chigaro chakapfava, senge PTFE pombi insulation bhora vharafu uye vharafu muviri, inokonzeresa yemuno electrostatic kusimuka kana kudzika, nyore kuburitsa njodzi kana spark, saka inofanirwa kuve nedhizaini ye conductive antistatic concentration kifaa, API608 mitemo pakati iyo yevhavha hunde uye muviri wevharuvhu wekupikisa conductor unofanirwa kunge uri pasi pe10 Ω)
Low torque kukosha
Mushure me6Kg / cm2 mhepo yekumanikidza bvunzo yevhavha, kukosha kwe torque yevhavha kunowanikwa ne torsion mita munzvimbo yakachena uye isina mafuta.
● Muedzo woupenyu
Chese chigadzirwa chitsva chakagadzirwa, kana muviri wevharuvhu, chivharo chevharuvhu, chigaro chevharuvhu, hunde yevharuvhu uye kurongedza bhokisi rechimiro saizi dhizaini shanduko, kana chigaro chevharuvhu, kurongedza shanduko yezvinhu, kushandisa hupenyu hwekuyedza muchina kuita hupenyu bvunzo.
Matanho ekusarudza mavharuvhu
● Maitiro uye mabasa makuru evhavha akapfupikiswa muTebhu 11 uye Tafura 12
● Zita dhayamita kana kuyerera - tarisa kubhuku remugadziri kuti usarudze dhayamita yevharuvhu yakakodzera
● Rated pressure — tembiricha — Tarisa Tafura 3: Rated pressure ye common steel valve — tembiricha tafura
● Fomu yekuguma kwevhavha - ona chikamu chakapfuura
(FIG. 4) Vatatu-chidimbu bhora valve
● Valve structure material - corrosion resistance, tembiricha. Tarisa Tafura 4: tembiricha muganho wevharuvhu yeimba yekusarudza zvinhu; Tafura 5: Muganho wekushisa weakakosha fittings emavharuvhu; Tafura 6: tafura yekudzivirira kuora kwezvinhu zvesimbi; Tafura 7: Rondedzero yekudzivirira kukurwa kwezvinhu Tafura 8: Zvishandiso zvechigaro zvakapfava zvinoshanda tembiricha
● Fomu yevhavha yevhavha - kukiya mazino ekubatanidza mhando; Bolted type; Circumferential welding type; Pressure seal; Arbitral musanganiswa
● Special chimiro zvinodiwa - maererano nekushandiswa kwekushisa, nzvimbo dzakasiyana, uye zvakakosha zvinodiwa
■ Kudzivirira moto uye anti-static design. Kunyanya kukoshesa kunofanira kubhadharwa kune dhizaini uye kushandiswa kwemavharuvhu ebhora
■ Kuwedzerwa kugadzirwa kwebhoneti. Inoshandiswa mufiriji valve yekufambisa gasi rakanyungudutswa
■ Ruzha uye cavitation kudzikiswa. Kunyanya pakugadzira uye kushandiswa kwemavharuvhu ekudzora
■ Reference dhizaini yebhegi rekuwedzera richipesana nekupekura kuvuza. ● Maitiro ekushanda - ona akati wandei anotsanangurwa muchikamu 1.1 pamusoro. Kazhinji inogumira kune yekumisikidza nharaunda, kushanda, mamiriro ekushanda kana nguva, uye magetsi, emagetsi drive mudziyo kufunga; Asi nekuda kwehupfumi uye kusimba kwevhiri remaoko kana giya rekudzikisira, richiri kushandiswa nevanhu vazhinji.
Tafura 11 General valve maitiro
Zvinokonzera uye kuchengetedza kwechikamu chevhavha kukundikana
Packing leak
Chikonzero chedambudziko
● Sarudzo yekuzadza haina kunaka, uye svikiro rinopisa, tembiricha, kudzvanywa hakuchinji.
● Kuisa kurongedza hakuna kunaka, kunyanya kurongedza kwese mukutenderera kutenderera, kuri nyore kugadzira kuvuza.
● Kuzadza kupfuura nguva yekushandiswa, kwave kukwegura, kurasikirwa kwekunaka.
● Nhamba isina kukwana yezvindori zvekutakura.
● Stem processing accuracy kana kupera kwepamusoro hakuna kukwana, kana ellipticity, kana notch.
● Kushanda kusina kunaka, simba rakawandisa.
Nzira dzekuchengetedza
● Filler zvinhu uye mhando inofanira kusarudzwa maererano nemamiriro ekushanda.
● Kuzunungusa, mudzi wekoiri unofanirwa kuiswa uye kudzvanywa kumativi ose, kubatanidzwa kunofanira kuva 30 kana 45.
● Kuchembera uye kukanganiswa kurongedza kunofanira kutsiviwa nenguva.
● Filler inofanira kuiswa maererano nenhamba yakatarwa yekutendeuka.
● Tevera mitemo yekushanda, kunze kwekukanganisa rudzi rwevhiri remaoko, rine kumhanya kweyunifomu uye kushanda kwesimba.
● Gland bolts inofanira kusimbiswa zvakafanana uye symmetrically.
Kubuda kwegasket
sei
● Gasket haidziviriri kune corrosion, high pressure, vacuum, yakakwirira kana yakaderera tembiricha.
● Kushanda hakusi kutsetseka, kunokonzera kumanikidzwa kwevhavha, kushanduka kwekushisa.
● Gasket compression simba haina kukwana.
● Kuungana kusina kunaka kwegasket, simba risina kuenzana.
● Gasket surface rough, yakasanganiswa nekunze kwenyika.
Nzira dzekuchengetedza
● Gasket zvinhu zvinofanira kusarudzwa maererano nemamiriro ekushanda.
● Nyatsogadzirisa, kushanda zvakanaka.
● Mabhaudhi anofanira kusimbiswa zvakaenzana uye akaenzana.
● Gasket gasket inofanira kuva yunifomu simba, gasket haibvumirwi kuputika uye kushandisa kaviri gasket.
● Ngwarira kuchenesa paunenge uchiisa gaskets, uye chenesa nzvimbo yakavhara neparafini.
Kubuda kwemvura panzvimbo yekuvhara
sei
● Nzvimbo yekuvhara haina kuenzana uye haigoni kuumba mutsara wakaoma.
● Dzimba uye zvikamu zvekuvhara zvekubatanidza centre zvakarembera, zvakananga kana kupfeka.
● Kukotama kwetsinde kana kusangana hakuna kunaka, zvekuti zvikamu zvekuvhara zvakatsveyama.
● Kusarudzwa kusina kukodzera kwekuvhara pamusoro pezvinhu, kuvhara pamusoro pekuora, kuputika, kupfeka.
● Kutarisa uye kurapwa kwekupisa kwete maererano nemitemo yekushanda, kupfeka, kuora, kuputika, nezvimwewo.
● Nzvimbo yekuvharisa inosvuuka.
Nzira dzekuchengetedza
● Kuisa chisimbiso pamusoro pekukuya, kugaya zvishandiso, abrasive agent kusarudzwa kunonzwisisika, mushure mekukuya kuongorora kwemavara, kuvhara pasi pasina indentation, kuputika, kuputika uye zvimwe zvikanganiso.
● Nzvimbo yepamusoro yekubatana pakati pe stem uye chikamu chekuvhara haisati yasangana nezvinodiwa, inofanira kucheneswa, nzvimbo yepamusoro inofanira kunge ine imwe nzvimbo yekushanda, iyo axial clearance pakati pe stem shoulder uye chikamu chekuvhara haisi pasi pe2. mm.
● Rongedza uye bhenda hunde, gadzirisa tsinde, stem nut, zvikamu zvekuvhara, chigaro pane imwe axis.
● Kusarudzwa kwekusagadzikana kwekuora, kusagadzikana kweabrasion uye mamwe maitiro anoenderana nemamiriro ekushanda kwechisimbiso chepamusoro.
● High tembiricha vharafu, mushure mekuvhara kutonhora shrinkage inoratidzika seam yakanaka, mushure mekuvhara nguva yeimwe nguva yekuvhara zvakare.
● Kuti abvise vheji yevhavha, asingabvumirwi kushandisa throttle valve, kuderedza valve, kuvhara zvikamu zvinofanira kunge zvakazaruka zvakakwana kana zvakakwana zvakavharwa nzvimbo, kana zvichidiwa kugadzirisa kuyerera kwepakati uye kudzvinyirira, inofanira kuiswa zvakasiyana throttle valve uye kuderedza valve.
● Nzvimbo yekuisa chisimbiso isingagoni kugadziriswa inofanira kutsiviwa nenguva.
Kuvhara chidimbu kure
sei
● Kushata kwakashata, kuitira kuti zvikamu zvekuvhara zvakanamatira kana kuti zvinopfuura nzvimbo yepamusoro yakafa, kuparara kwekubatana kunokanganisa.
● Zvikamu zvekuvhara hazvina kusimba zvakasimba, zvakasununguka uye zvinowa.
● Nyaya yekubatanidza haina kunaka, haigoni kumira nekuora kwepakati uye mechanical kupfeka.
Nzira dzekuchengetedza
● Kuti ushande zvakanaka, kuvhara valve haigoni kuva yakaoma, kuzarura vheji haigoni kudarika nzvimbo yepamusoro yakafa, valve yakazaruka zvakakwana, handwheel inofanira kuchinjwa zvishoma.
● Kubatana pakati pezvikamu zvekuvhara nedzinde kunofanira kuva kwakarurama uye kwakasimba, uye hapafaniri kuva nezvikamu zvekudzoka pakubatanidza shinda.
● Zvisungo zvinobatanidza zvikamu zvekuvhara uye chivharo chevhavha chinofanira kumira kuparara kwepakati, uye kuva nehumwe simba remagetsi uye kupfeka kusagadzikana, zvikamu zvekuvhara zvinowira pasi kunyange zvisingawanzoitiki, asi ine ngozi zvikuru.
Dzinde harichinjike
sei
● Dzinde revharuvhu uye zvikamu zvaro zvinofananidzwa zvine kuderera kwekugadzira machining uye kudiki kwazvo clearance.
● Matemo edzinde, stem nut, bracket, gland uye kurongedza hazvisi mumutsara wakatwasuka.
● Kurongedza kwakanyanyisa.
● Dzinde rakakombama uye rakakuvadzwa.
● Thread haina kuchena kana kuita ngura, kushambidzika kwemafuta.
● Nzungu dzakasununguka, shinda inotsvedza waya.
● Kubatana pakati pehunde yevharuvhu uye mudziyo wekutumira wakasununguka kana kukuvadzwa.
Nzira dzekuchengetedza
● Kuvandudza kururamisa kwekugadzirisa uye kugadzirisa hutano hwe stem uye stem nut, kuitira kuti kucheneswa kunofanira kunge kwakakodzera.
● Dzinde regungano uye zvigadziriso, kucheneswa kunoenderana, kutenderera, kuchinjika kutenderera.
● Kurongedza kwakanyanyisa, zorodza gland zvakanaka.
● Kukombama kwetsinde kunofanira kugadziriswa, kwakaoma kururamisa, kunofanira kutsiviwa. Shandisa dzinde nesimba rekuvhara rakakodzera.
● Shinda, shinda dzestem nut dzinowanzo chenesa uye kuwedzera mafuta ekuzora, nokuda kwemavharuvhu etembiricha yakakwira, anofanira kuzorwa nepini yedisulfide kana kuti graphite poda pakuzora.
● Stem nut yakasununguka inofanira kugadziriswa, haigoni kugadziriswa munguva yekutsiva.
● Itai kuti mafuta emuti agare akatsetseka, mafuta akanaka, usawanzoshandisa valve, kutarisa nguva dzose uye kushanda kwehunde, yakawanikwa kupfeka uye kuruma chiitiko, kugadzirisa panguva yakakodzera stem nut, bracket nezvimwe zvinhu.
● Kuti ishandise valve nemazvo, simba rekuvhara rinofanira kunge rakakodzera kudzivirira kuparara kwedzinde uye kukanganisa.
● Mushure mekuvhara, kana vharafu ichipisa uye ichiwedzerwa, mushure mokunge vheji yavharwa, pane imwe nguva, shandura ruoko rwechiwachi zvishoma kuti udzivise hunde kubva pakuurayiwa. ,
Kubuda kwemuviri nebhoneti
sei
● Muviri wevharuvhu une buri rejecha kana kutsemuka.
● Valve body tensile crack panguva yekugadzirisa welding.
Nzira dzekuchengetedza
● Nzvimbo inofungidzirwa kuti yakatsemuka ichakwenenzverwa, ne4% nitric acid solution etching, yakadai sepakatsemuka inogona kuratidzwa.
● Chengeta kana kuti tsiva mutswe.