Isikhokelo sePipeline yeYunithi yeFriji eParallel kunye noKhetho lweDayamitha yePipe

1. Ukwaziswa kweeYunithi zeFriji eziHlangeneyo

Iyunithi ehambelanayo ibhekisa kwiyunithi yokukhenkceza edibanisa ii-compressor ezingaphezulu kwezibini kwi-rack enye kwaye ikhonza ii-evaporators ezininzi. Ii-compressors zinoxinzelelo oluqhelekileyo lokuphuma komoya kunye noxinzelelo lokufuma, kwaye iyunithi ehambelanayo inokulungelelanisa ngokuzenzekelayo amandla ngokwemithwalo yenkqubo. Inokwenza ukuguguleka okufanayo kwe-compressor, kwaye iyunithi yokukhenkceza ithatha indawo encinci, kwaye kulula ukwenza ulawulo oluphakathi kunye nolawulo olukude.

Iseti efanayo yeeyunithi inokwenziwa ngohlobo olufanayo lweecompressor, okanye iintlobo ezahlukeneyo zeecompressor. Inokwenziwa ngohlobo olufanayo lwecompressor (njengomatshini wepiston), okanye inokwenziwa ziintlobo ezahlukeneyo zeecompressor (njengomatshini wepiston + umatshini wescrew); ingalayisha ubushushu bokufuma olunye okanye amaqondo obushushu ahlukeneyo okufuma. Ubushushu; ingaba yinkqubo yesigaba esinye okanye inkqubo yezigaba ezimbini; ingaba yinkqubo yomjikelo omnye okanye inkqubo ye-cascade, njl. Uninzi lweecompressor eziqhelekileyo ziinkqubo ezifanayo zomjikelo omnye.

Iiyunithi zecompressor ezihambelanayo zilungelelanisa ngcono umthwalo wokupholisa onamandla wenkqubo yokukhenkceza. Ngokulungisa ukuqala nokuma kwecompressor kwinkqubo yonke, imeko "yehashe elikhulu nenqwelo encinci" iyathintelwa. Umzekelo, xa imfuno yamandla okupholisa iphantsi ebusika, icompressor ivulwa kancinci, kwaye ehlotyeni, imfuno yamandla okupholisa inkulu, kwaye icompressor ivulwa ngakumbi. Uxinzelelo lokufunxa lweyunithi yecompressor lugcinwa luhleli, nto leyo ephucula kakhulu ukusebenza kakuhle kwenkqubo. Uvavanyo oluthelekisayo lweyunithi enye kunye neyunithi ehambelanayo lwenziwe kwinkqubo efanayo, kwaye inkqubo yeyunithi ehambelanayo inokonga amandla nge-18%.

Zonke iindlela zokulawula iicompressor, iicondenser kunye nee-evaporators zinokufakwa kwibhokisi yokulawula yombane yenkqubo, kwaye abalawuli bekhompyutha banokusetyenziselwa ukwandisa ukusebenza kakuhle kwenkqubo. Ngokusisiseko, ukusebenza okupheleleyo ngaphandle komntu kunye nokusebenza kude kunokufezekiswa.

2. Isikhokelo sombhobho kunye nokukhethwa kobubanzi bombhobho
Icala lombhobho: Kwinkqubo yokufriji yeFreon, ioyile yokuthambisa yecompressor ijikeleza kwinkqubo kunye nefriji, ngoko ke ukuqinisekisa ukubuya kweoyile okugudileyo kwenkqubo, umbhobho womoya obuyayo (umbhobho woxinzelelo oluphantsi) kufuneka ube nomthambeka othile Ukuya kwicompressor, ngesiqhelo nomthambeka we-0.5%.

Ukukhetha ububanzi bepayipi: Ukuba ububanzi bepayipi yobhedu buncinci kakhulu, ukulahleka koxinzelelo lwefriji kwipayipi yokuhambisa ulwelo (ipayipi yoxinzelelo oluphezulu) kunye nepayipi yegesi yokubuyisela (ipayipi yoxinzelelo oluphantsi) kuya kuba kukhulu kakhulu; Ukuba ixabiso likhulu kakhulu, nangona ukulahleka kokumelana kwipayipi kunokuncitshiswa, kuya kubangela ukunyuka kweendleko zotyalo-mali lokuqala, kwaye kwangaxeshanye, kuya kubangela nesantya sokubuyisela ioyile esaneleyo kwipayipi yomoya wokubuyisela.

Umgaqo wokukhetha ububanzi bombhobho ocetyiswayo: isantya sokuhamba kwefriji kumbhobho wokuhambisa ulwelo yi-0.5-1.0m/s, ingadluli kwi-1.5m/s; kumbhobho womoya obuyayo, isantya sokuhamba kwefriji kumbhobho othe tye yi-7-10m/s, isantya sokuhamba kwefriji kumbhobho onyukayo yi-15~18m/s.

Uyilo lohlobo lwesebe: Kukho ii-headers zokuhambisa ulwelo kunye nee-headers zomoya obuyayo kwiyunithi ehambelanayo, kwaye kukho amasebe amaninzi okuhambisa ulwelo kwi-header yokuhambisa ulwelo, kwaye isebe elinye lomoya obuyayo elihambelana nesebe ngalinye lokuhambisa ulwelo liqokelelwa kwi-On the return air header, umbhobho wenkqubo yokufriji yeyunithi ehambelanayo ubizwa ngokuba luhlobo lwesebe. Isibini ngasinye samasebe, oko kukuthi, isebe lokuhambisa ulwelo kunye nesebe lalo lokubuyisela umoya elihambelanayo, sinokuba ne-evaporator enye (isebe 1) okanye iqela le-evaporators (isebe n). Xa liqela le-evaporators, ngokuqhelekileyo iqela le-evaporators liqala kwaye lime ngaxeshanye.

I-evaporator iphezulu kune-compressor:
Ukuba i-evaporator iphezulu kune-compressor, lo gama nje umgca wokubuyisela unethambeka elithile kwaye ukhetha ububanzi bombhobho obufanelekileyo, inkqubo inokuqinisekisa ukubuya kweoyile okugudileyo. Nangona kunjalo, ukuba umahluko wokuphakama phakathi kwe-evaporator kunye ne-compressor mkhulu kakhulu, i-liquid refrigerant kumbhobho wokuhambisa ulwelo iya kuvelisa umphunga we-flash ngaphambi kokuba ifikelele kwindlela yokuthomalalisa.

I-evaporator iphantsi kune-compressor:
Ukuba i-evaporator iphantsi kune-compressor, i-refrigerant kwipayipi yokuhambisa ulwelo ayizukuvelisa umphunga okhawulezayo ngenxa yomahluko wokuphakama phakathi kwe-evaporator kunye ne-compressor, kodwa xa kuyilwa ipayipi yenkqubo yokufriji, ukubuya kwenkqubo kufuneka kuqwalaselwe ngokupheleleyo. Ingxaki yeoyile, ngeli xesha, i-oyile return bend kufuneka iyilwe kwaye ifakwe kwicandelo elinyukayo lesebe ngalinye lomoya obuyayo.

I-evaporator iphezulu kune-compressor:
Ukuba i-evaporator iphezulu kune-compressor, lo gama nje umgca wokubuyisela unethambeka elithile kwaye ukhetha ububanzi bombhobho obufanelekileyo, inkqubo inokuqinisekisa ukubuya kweoyile okugudileyo. Nangona kunjalo, ukuba umahluko wokuphakama phakathi kwe-evaporator kunye ne-compressor mkhulu kakhulu, i-liquid refrigerant kumbhobho wokuhambisa ulwelo iya kuvelisa umphunga we-flash ngaphambi kokuba ifikelele kwindlela yokuthomalalisa.

I-evaporator iphantsi kune-compressor:
Ukuba i-evaporator iphantsi kune-compressor, i-refrigerant kwipayipi yokuhambisa ulwelo ayizukuvelisa umphunga okhawulezayo ngenxa yomahluko wokuphakama phakathi kwe-evaporator kunye ne-compressor, kodwa xa kuyilwa ipayipi yenkqubo yokufriji, ukubuya kwenkqubo kufuneka kuqwalaselwe ngokupheleleyo. Ingxaki yeoyile, ngeli xesha, i-oyile return bend kufuneka iyilwe kwaye ifakwe kwicandelo elinyukayo lesebe ngalinye lomoya obuyayo.