1. Kuchenjerera pakushanda kwewelding
Pakupinza, basa racho rinofanira kuitwa zvakanyatsoenderana nematanho, zvikasadaro, mhando yekupinza ichakanganiswa.
(1) Pamusoro pepombi dzinoda kusungirirwa panofanira kunge pakachena kana kuti pakaita kupenya. Muromo unoputika unofanira kunge wakatsetseka, wakatenderera, usina maburi nemakomba, uye wakakora zvakaenzana. Poresa majoini epombi dzemhangura dzinoda kusungirirwa nesandpaper, wozodzipukuta nejira rakaoma. Zvikasadaro zvichakanganisa kuyerera kwepombi uye kunaka kwekusungirirwa pairi.
(2) Isa mapaipi emhangura anofanira kusungirirwa akabatana (teerera saizi), uye gadzirisa pakati pedenderedzwa.
(3) Pakupinza, zvikamu zvakasungirirwa zvinofanira kupiswa. Pisa chikamu chekupinza chepombi yemhangura nemurazvo, uye kana pombi yemhangura yapiswa kusvika papepuru-tsvuku, shandisa electrode yesirivha kuipinza. Mushure mekunge murazvo wabviswa, chinobatanidza chinosungirirwa pajoini rechinobatanidza, kuitira kuti chinobatanidza chinyunguduke uye chipinde muzvikamu zvemhangura zvakasungirirwa. Tembiricha mushure mekudziya inogona kuratidza tembiricha kuburikidza neruvara.
(4) Zvakanakisisa kushandisa murazvo wakasimba pakupinza nekukurumidza, uye kupfupisa nguva yekupinza zvakanyanya sezvinobvira kudzivirira ma oxide akawandisa kubva mupaipi. Ma oxide anokonzera tsvina nekuvharika pamusoro pekuyerera kwefiriji, uye anotokonzera kukuvara kukuru kucompressor.
(5) Pakusanganisa, kana chinhu chisina kusimba zvakakwana, usambozungunusa kana kudedera pombi yemhangura, zvikasadaro chikamu chakasanganiswa chichatsemuka uye chinokonzera kubuda kwemvura.
(6) Pamuchina wekutonhodza wakazadzwa neR12, haubvumirwi kusonhodza usina kubvisa mvura mufiriji yeR12, uye hazvigoneke kugadzirisa ma welding kana muchina wekutonhodza uchiri kudonha mvura, kuitira kudzivirira muchina wekutonhodza weR12 kuti usave nehupfu nekuda kwemoto wakavhurika. Phosgene ine chepfu kumuviri wemunhu.
2. Nzira yekuwedera yezvikamu zvakasiyana
(1) Kubatanidza mapaipi edhayamita yechikamu chimwe nechimwe
Pakusanganisa mapaipi emhangura ane dhayamita imwe chete mufiriji, shandisa casing welding. Kureva kuti, pombi yakasungirirwa inowedzerwa kuita kapu kana muromo webhero, uye imwe pombi inoiswa. Kana kuiswa kwacho kuri kupfupika, hakuzongokanganisi simba nekusimba chete, asiwo kufamba kwacho kuchayerera zviri nyore mupombi, zvichikonzera kusvibiswa kana kuvharika; kana mukaha uri pakati pemapaipi emukati nekunze uri mudiki, kufamba kwacho hakugone kuyerera munzvimbo ine containment uye kunogona kungosungirirwa kunze kweinterface. Simba rayo rakaderera, uye ichatsemuka nekudonha kana yaiswa simba rekuzununguka kana kukotama; kana mukaha uripo wakakura zvakanyanya, kufamba kwacho kuchayerera zviri nyore mupombi, zvichikonzera kusvibiswa kana kuvharika. Panguva imwe chete, kubuda kwacho kuchakonzerwa nekusakwana kwekuzadza kwemvura mu weld, kwete chete kunaka kwayo, asiwo kutambisa zvinhu. Saka, zvakakosha zvikuru kusarudza kureba kwekuisa uye mukaha uri pakati pemapaipi maviri zvine musoro.
(2) Kubatanidza chubhu ye capillary nechubhu yemhangura
Pakugadzirisa firita rekuomesa remuchina wekutonhodza, chubhu yecapillary (throttle capillary tube) inofanira kusungirirwa. Kana capillary yakasungirirwa kune firita rekuomesa kana mamwe mapaipi, nekuda kwemusiyano mukuru uripo pakati pemapaipi maviri, simba rekupisa recapillary diki kwazvo, uye chiitiko chekupisa zvakanyanya chinowanzo wedzera metallographic grain yecapillary, iyo inova yakaoma uye iri nyore kutyoka. Kuti capillary isapise zvakanyanya, murazvo wekuwelda wegesi unofanirwa kudzivirira capillary uye kuita kuti isvike patembiricha yekuwelda panguva imwe chete nechubhu yakakora. Chidimbu chesimbi chinogonawo kushandiswa kusungira pepa remhangura rakakora pachubhu yecapillary kuti iwedzere nzvimbo yekurasa kupisa zvakakodzera kudzivirira kupisa zvakanyanya.
(3) Kubatanidza chubhu ye capillary ne filter dryer
Kudzika kwekuisa kwecapillary kunofanirwa kudzorwa mukati me5-15mm yekutanga, mugumo wekuisa wecapillary nefirita dryer zvinofanira kuva 5mm kubva kumagumo echidzitiro chefirita, uye mukaha unoenderana unofanira kuva 0.06 ~ 0.15mm. Mugumo wecapillary unofanirwa kugadzirwa zvakanaka kuita angle yakaita sehorseshoe ye45° kudzivirira zvidimbu zvekunze kuti zvisagare pamusoro pekupedzisira zvichikonzera kuvharika.
Kana dhayamita mbiri dzepombi dzakasiyana zvikuru, firita yekuomesa inogonawo kupwanywa ne clamp yepombi kana vise kuti iite kuti pombi yekunze ipfave, asi capillary yemukati haigone kudzvanywa (yakafa). Kureva kuti, isa capillary tube mu copper tube kutanga, woidzvanya ne clamp yepombi iri kure ne 10 mm kubva kumagumo epombi yakakora.
(4) Kubatanidza mapaipi efiriji uye nzira yecompressor
Kudzika kwepombi yerefrigerant inopinzwa mupombi kunofanira kunge kuri 10mm. Kana iri pasi pe10mm, pombi yerefrigerant inobuda zviri nyore painenge ichidziya, zvichiita kuti mvura ivhare nozzle.
3. Kuongororwa kwemhando yekunamira
Kuti pave nechokwadi chekuti hapana kana mvura yabuda pachikamu chakasungirirwa, ongororo dzinodiwa dzinofanira kuitwa mushure mekusungirirwa.
(1) Tarisa kana kushanda kwesefa kweweld kwakanaka. Mushure mekuwedzera refrigerant kana nitrogen kuti igare kwenguva yakati, inogona kuyedzwa nemvura ine sipo kana dzimwe nzira.
(2) Kana basa rekuisa mufiriji nerekutonhodza mhepo riri kushanda, hapana mitswe (misono) munzvimbo yekunamira nekuda kwekuzunguzika inofanira kubvumidzwa.
(3) Pombi haifanirwe kuvharwa nekuda kwetsvina inopinda panguva yekunamira, uye haifanirwe kupinda muhunyoro nekuda kwekushanda zvisina kunaka.
(4) Kana firiji nemhepo zvichishanda, pamusoro pechikamu chekunamira panofanira kunge pakachena uye pasina mavara emafuta.
Nguva yekutumira: Gumiguru-23-2021