Uhlelo lwefriji igama elijwayelekile lemishini namapayipi lapho okuqandayo kugeleza khona, kufaka phakathi ama-compressors, ama-condensers, amadivaysi aphonsayo, ama-evelines, amapayipi kanye nemishini yokusiza. Kunguhlelo oluphambili lwengxenye yemishini yokufaka umoya, imishini yokupholisa kanye neyesiqandisi.
Kunezindlela ezahlukahlukene zamaphutha okuvinjelwa ohlelweni lokuqapha, njengokuvinjelwa kweqhwa, ukuqhekeka okungcolile, kanye nokuvinjwa kwamafutha. E-Bypass Ukushaja i-Valve, inkomba yingcindezi engemihle, umsindo weyunithi yangaphandle egijimayo ukukhanya, futhi akukho msindo woketshezi ogeleza ku-everator.
Izimbangela nezimpawu ze-Ice Blockage
Amaphutha we-Ice blockage adalwa umswakama ngokweqile ohlelweni lweqandi. Ngokujikeleza okuqhubekayo kwesiqandisi, umswakama ohlelweni lwesiqandisi ugxile kancane endaweni ephumayo ye-capillary. Ngoba amazinga okushisa ase-capillary aphansi kakhulu, amanzi aqhakaza futhi akhuphuka kancane kancane, ngezinga elithile, i-capillary izovinjwa ngokuphelele, isiqandisi ngeke siqhubeke.
Umthombo oyinhloko womswakama ohlelweni wefriji ngu: Iphepha lokufakwa kwezimoto ku-compressor liqukethe umswakama, okuwumthombo oyinhloko womswakama ohlelweni. Ngaphezu kwalokho, izakhi kanye namapayipi okuxhuma kohlelo lweqandisini anomswakama osele ngenxa yokomiswa okwanele; I-oyili esiqandisini nesiqandisi esiqukethe umswakama edlula inani elivumelekile; Idonswa iphepha lokufakwa kwezimoto kanye namafutha esiqandi. Ngenxa yezizathu ezingenhla, okuqukethwe kwamanzi ohlelweni lokuqapha kudlula inani elivumelekile lohlelo lweqandisini, futhi ukugeleza kweqhwa kwenzeka. Ngakolunye uhlangothi, ukuvinjelwa kweqhwa kuzodala ukuthi esiqandisini sehluleke ukujikeleza, futhi esiqandisini ngeke sikwazi ukuphola ngokujwayelekile; Ngakolunye uhlangothi, amanzi azosabela ngamakhemikhali ngesiqandisi sokukhiqiza i-hydrochloric acid kanye ne-hydrogen fluoride, ezokwenza ukuwohloka kwamapayipi ensimbi kanye nezinto, futhi kubangele ukulimala kwezimoto. Ukufakelwa konakele, futhi ngasikhathi sinye, kuzodala ukuthi i-fundiorer uwoyela ukuwohloka futhi iphatheze ukuthambisa i-compressor. Umswakama ohlelweni kufanele ugcinwe ubuncane.
Izimpawu zokuvinjelwa kweqhwa ohlelweni lokuqapha kabusha ukuthi zisebenza ngokujwayelekile esigabeni sokuqala, iqhwa lihlaselwa ukushisa, iyunithi ihamba kahle, futhi umsindo womsebenzi esiqandisile ku-evaporator ucacile futhi uzinzile. Ngokwakheka kokuvinjwa kweqhwa, i-airflow izwakala kancane kancane ibe buthaka futhi inxendeliso. Lapho i-blockage inzima, umsindo we-airflow uyanyamalala, umjikelezo wefriji uyaphazamiseka, futhi umjikelezo kancane kancane uyaphola. Ngenxa yokuvinjelwa, ingcindezi yokuphelelwa amandla inyuka, umsindo womshini uyanda, akukho mqashi Ngasikhathi sinye, izinga lokushisa le-capillary libuye livuke ndawonye, ngakho-ke ama-wece cubes aqala ukuncibilika. Isiqandisi siqala ukujikeleza futhi. Ngemuva kwenkathi yesikhathi, i-ICE Blockage izophinda iqale kabusha, yakha into yesikhathi sokudlula.
Izimbangela nezimpawu zokuvinjelwa okungcolile
Amaphutha angcolile okuvimba abangelwa ukungcola ngokweqile ohlelweni lweqandi. Imithombo esemqoka yokungcola ohlelweni yilezi: uthuli kanye nokushaywa kwensimbi ngesikhathi sokwenziwa eziqandisini, ungqimba olungaphakathi lwamapayipi, amapayipi angaphandle awahlanzwa ngesikhathi sokucubungula, futhi amapayipi awavaliwe ngokuqinile. Epayipini, kukhona ukungcola kumafutha esiqandisi esiqandisini nesiqandisi, kanye ne-desiccant powder enekhwalithi empofu kusihlungi sokomiswa. Iningi lalokhu kungcola kanye namapopi kususwa isihlungi se-Drier lapho begeleza ngesihlungi somile, kwathi lapho isihlungi se-Drier sinokungcola okuthe xaxa, ukungcola okuhle nokungcola okuhle kungeniswa kwi-capillary tube ngesiqandisi esiphezulu. Lezi zingxenye ezinokumelana okuphezulu zinqwabelana futhi zinqwabelana, kanye nokwenyuka kokumelana, okwenza kube lula ukungcola ukuze uhlale kuze kube yilapho i-capillary ivinjiwe futhi uhlelo lweqandi lungakwazi ukujikeleza. Ngaphezu kwalokho, uma ibanga phakathi kwe-capillary nesikrini sokuhlunga esihlungi elomile sisondele kakhulu, kulula ukudala ukuqhekeka okungcolile; Ngaphezu kwalokho, lapho i-welding i-capillary kanye nesihlungi esomile, kulula futhi ukuwela i-capillary nozzle.
Ngemuva kokuthi uhlelo lwefriji lungcolile futhi luvinjelwe, ngoba esiqandisini ngeke sijikeleze, i-expressor isebenza ngokuqhubekayo, i-accenser ayishisi, i-condenser ye-compressor ayishisi, futhi akukho msindo wokugeleza komoya ku-everator. Uma kuvinjelwe ngokwengxenye, i-evaporator izoba nomuzwa opholile noma omnandi, kepha akukho sithwathwa. Uma uthinta indawo yangaphandle yesihlungi esomile ne-capillary, kuzizwa kubanda kakhulu, kukhona iqhwa, futhi ungqimba lwesithwathwa esimhlophe luzokwakha. Lokhu kungenxa yokuthi lapho esiqandisini sigelezela ngesihlungi somile esivinjelwe noma i-capillary tube, kuzodala ukuncishiswa kwengcindezi, ukuze ukuqaliswa kwengcindezi okugeleza kuyo kuyokwanda, ukuncipha, nokuvuselelwa, okuholela ekuvuseleleni indawo yangaphandle ye-blockage. Isithwathwa.
Umehluko phakathi kwe-Ice blockage kanye ne-blockage engcolile: Ngemuva kwesikhathi, i-Ice blockage ingaqhubeka ukuphoqa, ukwakha ukuphindaphinda kwezikhathi zokuvulwa isikhashana, kuvinjelwe futhi ngemuva kokuvula. Ngemuva kokuthi ibhulokhi elingcolile lenzeka, alikwazi ukuqakwa.
Ngaphezu kwe-capillaries engcolile, uma kunokunye ukungcola ohlelweni, isihlungi esomile sizovinjwa kancane kancane. Ngoba umthamo wesihlungi uqobo ukuze ususe ukungcola nokungcola kukhawulelwe, kuzovinjwa ngenxa yokuqongelelwa okuqhubekayo kokungcola okuqhubekayo.
Ukwehluleka kwamafutha okubumba nokunye ukwehluleka kwePipeline blockage
Isizathu esiyinhloko sokungena komafutha ohlelweni lokuqapha kabusha ukuthi isilinda seCompressors sigqokwa kakhulu noma igebe phakathi kwepiston nesilinda sikhulu kakhulu.
Uphethiloli okhishwe ku-compressor ukhishwa emgqeni, bese engenanga isihlungi esomile kanye nesiqandisi. Ngenxa yokubona okuphezulu kwamafutha, kuvinjelwe yi-desiccant kusihlungi. Lapho kukhona uwoyela omningi, kuzokwakha ukuqhekeka endaweni yokungena kwesihlungi, okubangela esiqandisini kungakwazi ukujikeleza ngokujwayelekile, futhi esiqandisini asipholi.
Isizathu sokuvikelwa kwamanye amapayipi yile: lapho ipayipi lifakwa, livinjelwe yi-alender; Noma lapho ishubhu lithathelwa indawo, ishubhu elinqunyelwe livinjelwe futhi alitholakali. Ama-blockage angenhla abangelwa yizici zabantu, ngakho-ke kuyadingeka ukuthi usheshe futhi ungene esikhundleni seshubhu, kufanele usebenze futhi uhlolwe ngokwehluleka kokuvinjelwa.
Indlela yokususa i-blockage yohlelo lokuqapha kabusha
Ukuxazulula inkinga kwe-Ice blockage
I-Ice blockage kuhlelo lokuqaphamlandi kungenxa yomswakama owedlulele ohlelweni, ngakho-ke lonke uhlelo lwefriji kufanele lomisiwe. Kunezindlela ezimbili zokubhekana nakho:
1. Sebenzisa i-oveni esomile ukushisa nokoma isakhi ngasinye. Susa i-compressor, i-condenser, i-evaporator, ipayipi le-capillary, ne-air Return Pipe ohlelweni lwesiqandisi esiqandisini esiqandisini, bese uwafaka kuhhavini osomile ukushisa nowomile. Izinga lokushisa ebhokisini lingaba ngu-120 ° C, isikhathi sokumisa singamahora ama-4. Ngemuva kokupholisa kwemvelo, ukushaya futhi komile nge-nitrogen ngamunye ngamunye. Faka esikhundleni ngesihlungi esisha esomile, bese uqhubekela emhlanganweni nase-Welding, ukutholwa okuvuthiwe okucindezelayo, ukugcwala, ukugcwaliswa kwesiqandisi, ukugcwaliswa kwesiqandisi, ukusebenza kwecala nokubopha. Le ndlela iyindlela engcono kakhulu yokuxazulula i-Ice blockage, kepha kusebenza kuphela kuMnyango Wezeranti womkhiqizi we-Dengrigerator. Iminyango elokulungiswa okujwayelekile ingasebenzisa izindlela ezinjengokushisa nokufuduka ukuze kuqedwe amaphutha okuvinjwa kweqhwa.
2. Sebenzisa ukufudumeza kanye nokucishwa kanye nokuvalwa kwesibili ukususa umswakama kusuka ezingxenyeni zohlelo lokuqapha.
2 Ukuqedwa kwamaphutha angcolile okuvimba
Kunezindlela ezimbili zokuxazulula inkinga yokuhlanza i-capillary engcolile: eyodwa ukusebenzisa i-nitrogen ephezulu ye-nitrogen ehlanganiswe nezinye izindlela ukushaya i-capillary evinjiwe. khipha. Uma i-capillary ivinjelwe kakhulu futhi indlela engenhla ayikwazi ukuqeda iphutha, ifaka esikhundleni se-capillary ukuqeda iphutha, ngokulandelayo:
1. Sebenzisa i-nitrogen ephezulu ye-nitrogen ukushaya i-capillary e-capillary Qeda ukungcola ku-capillary ngaphansi kwesenzo se-nitrogen ephezulu ye-nitrogen. Ngemuva kokuthi i-capillary ayinakwa, engeza i-100 ml ye-carbon tetrachloride yokuhlanza igesi. I-condenser ingahlanzwa nge-carbon tetrachloride kudivayisi yokuhlanza ipayipi. Ngemuva kwalokho buyisela isihlungi se-Drier, bese ugcwalisa nge-nitrogen ukuthola ukuvuza, vacuimise, bese ekugcineni ugcwalise esiqandisini.
2 Khipha okokuqala tube yengcindezi ephansi kanye ne-capillary kusuka ku-aluminium-aluminium ngokuhlanganiswa kwe-evaporator ngo-welding wegesi. Ngesikhathi se-disassekhe kanye nokufudumala, ukuhlangana kwe-aluminium-aluminium kufanele kusongelwe ngentambo yekotoni emanzi ukuvikela ishubhu le-aluminium kusuka ekushiseni okuphezulu.
Lapho ungena esikhundleni se-capillary tube, izinga lokugeleza kufanele lilinganiswe. Ukuphuma kweshubhu le-capillary akufanele kufakwe ku-inlet of evporator. Faka i-trim valve kanye negeyimu yengcindezi endaweni yokungena nokuphuma kwe-compressor. Lapho ingcindezi yangaphandle yakwa-Atmospheric ilingana, ingcindezi yenkomba ye-High Pressure Gauge kufanele iyenze luzinze ngo-1 ~ 1.2MPA. Uma ingcindezi yeqa, kusho ukuthi izinga lokugeleza lincane kakhulu, futhi ingxenye ye-capillary inganqunywa kuze kube yilapho ingcindezi ifanelekile. Uma ingcindezi iphansi kakhulu, kusho ukuthi izinga lokugeleza likhulu kakhulu. Ungahlanganisa amakhakhasi ambalwa ukukhulisa ukumelana kwe-capillary, noma ungene esikhundleni sabagibeli. Ngemuva kokuthi ingcindezi ifanelekile, yenqabe i-capillary epayipi lokungena komshini we-evaporator.
Lapho i-welding i-capillary entsha, ubude obufakwe ku-copper-aluminium ngokuhlangana kufanele kube cishe ku-4 kuye ku-5 cm ukugwema ukuqhekeka kwe-welding. Lapho i-capillary ifakwa esihlungi esomile, ubude bokufaka kufanele bube ngu-2,5cm. Uma i-capillary ifakwe kakhulu kusihlungi esomile futhi isondele kakhulu esikrinini sokuhlunga, izinhlayiya ezincane ze-molecular ezinesizotha zizongena kwi-capillary futhi zivimbe. Uma i-capillary ifakwe kancane kakhulu, ukungcola kanye nezinhlayiya ze-molecular kanye ne-molecular izimbumbulu kuzongena kwi-capillary futhi ivimbele ngqo isiteshi se-capillary. Ngakho-ke ama-capillaries afakwa kusihlunga asikho okuningi noma okuncane kakhulu. Ngokweqile noma okuncane kakhulu kudala ingozi yokuvala. Umdwebo 6-11 ukhombisa isikhundla sokuxhumeka kwe-capillary nefreyimu yomile.
Ukuxazulula izinkinga ze-3 plugging
Ukwehluleka kwe-plugging kawoyela kukhombisa ukuthi kunamafutha omshini omqandisi amaningi asele ohlelweni oluqandayo, oluthinta umphumela wokupholisa noma ukwehluleka ukuziqanda. Ngakho-ke, i-oyili yomshini esiqandisini ohlelweni kufanele ihlanzwe.
Lapho uwoyela wokuhlunga uvinjelwe, isihlungi esisha kufanele sithathelwe indawo, futhi ngasikhathi sinye, sebenzisa i-nitrogen ephezulu ye-nitrogen ukushaya ingxenye yamafutha esiqandisi aqongelelwe ku-condenser, bese usebenzisa isondo lezinwele ukushisa umthondo lapho kwethulwa i-nitrogen.
Isikhathi sePosi: Mar-06-2023
