Kutheni ubushushu bendawo ebandayo bungehli?

Okokuqala, uhlalutyo lokusilela kunye nonyango lobushushu bokugcina okubandayo alunciphisi

Ubushushu befriji buphezulu kakhulu. Emva kokuhlolwa, ubushushu beendawo zokugcina ezimbini babuyi--4°C ukuya kwi-0°C kuphela, kwaye iivalvu ze-solenoid zokuhambisa ulwelo kwiindawo zokugcina ezimbini zavulwa. I-compressor yaqala rhoqo, kodwa imeko ayizange iphucuke xa kutshintshelwa kwenye i-compressor, kodwa kwakukho iqhwa elikhulu kumbhobho womoya obuyayo. Emva kokungena kwiindawo zokugcina ezimbini, kwafunyaniswa ukuba iqhwa elikhulu lenzekile kwiikhoyili zokufuma, kwaye imeko yaphucuka emva kokunyibilika. Ngeli xesha, ixesha lokuqalisa kunye nobushushu bokugcina be-compressor buyancipha, kodwa abufanelekanga. Emva koko jonga imida ephezulu nesezantsi yesenzo solawulo oluphantsi koxinzelelo, kwaye wafumanisa ukuba ukulungiswa kakubi yi-0.11-0.15npa, oko kukuthi, yeka i-compressor xa uxinzelelo luyi-0.11mpa, kwaye uqale i-compressor xa uxinzelelo luyi-0.15pa. Uluhlu lobushushu bokufuma oluhambelanayo lumalunga ne--20°C ukuya kwi-18°C. Ngokucacileyo, olu seto luphezulu kakhulu kwaye umahluko we-amplitude mncinci kakhulu. Ngoko ke, lungisa imida ephezulu nesezantsi yesilawuli soxinzelelo oluphantsi. Ixabiso elilungisiweyo yi-0.05-0.12mpa, kwaye uluhlu lobushushu bokufuma oluhambelanayo lumalunga ne--20°C-18°C. Emva koko, qalisa inkqubo kwaye uqalise ukusebenza okuqhelekileyo.

2. Izizathu ezininzi zokuqalisa rhoqo ii-compressors zefriji

Iicompressor ezisebenzayo ziyaqaliswa kwaye zimiswe zii-relay ze-voltage eziphezulu nezisezantsi, kodwa emva kokukhubeka uninzi lwee-relay ze-voltage eziphezulu, kufuneka kuqalwe ngokutsha ngesandla ukuze kuqaliswe kwakhona i-compressor. Ke ngoko, ukuqala nokuma rhoqo kwe-compressor ngokubanzi akubangelwa yi-relay ye-voltage ephezulu, kodwa ikakhulu yi-relay ye-voltage ephantsi:

1. Umahluko wobushushu phakathi kwe-relay amplitude kunye ne-low-voltage relay mncinci kakhulu, okanye umahluko wobushushu phakathi kwe-relay amplitude kunye ne-low-voltage relay mncinci kakhulu;

2. Ivalvu yokufunxa kunye neyokukhupha umoya okanye ivalvu yokhuseleko yecompressor iyavuza, ngoko ke emva kokuvalwa, igesi enoxinzelelo oluphezulu iya kuvuza kwinkqubo enoxinzelelo oluphantsi, kwaye uxinzelelo luya kunyuka ngokukhawuleza ukuqala icompressor. Emva kokuqalisa, uxinzelelo lwenkqubo enoxinzelelo oluphantsi luyehla ngokukhawuleza, ireyila enoxinzelelo oluphantsi iyasebenza, kwaye icompressor iyayeka;

3. Ivalvu yokubuyisela ioyile ngokuzenzekelayo yesahluli seoyile esithambisayo iyavuza;

4. Iplagi yomkhenkce yevalvu yokwandisa.

3. Icompressor isebenza ixesha elide kakhulu

Isizathu esiyintloko sokusebenza kwexesha elide kwecompressor kukungabikho komthamo wokupholisa owaneleyo weyunithi okanye umthwalo wobushushu ogqithisileyo kwindawo yokugcina ubushushu, ikakhulu kubandakanya:

1. I-evaporator ineqabaka elininzi kakhulu okanye ioyile eninzi kakhulu egcinwe kuyo;

2. Ukujikeleza kwe-refrigerant kwinkqubo akwanelanga, okanye umbhobho we-refrigerant engamanzi awugudi ngokwaneleyo;

3. Ngenxa yokuvuza kweepleyiti zevalvu yokungenisa kunye neyokukhupha umoya, ukuvuza okukhulu kweringi yepiston okanye ukungaphumeleli kwecompressor ukwandisa umthwalo, ukuhanjiswa kwegesi yokwenyani kwecompressor kuncitshiswe kakhulu;

4. Umaleko wokuthintela ubushushu kwindawo yokugcina izinto ezibandayo wonakele, ucango aluvalwanga kakuhle okanye inani elikhulu lezinto ezishushu liyakhululwa, nto leyo ebangela umthwalo ogqithisileyo wobushushu kwindawo yokugcina izinto ezibandayo;

5. I-temperature relay, i-low voltage relay okanye i-liquid supply solenoid valve kunye nezinye izinto zolawulo zinempazamo, nto leyo ebangela ukuba ubushushu bokugcina bufikelele kumda ophantsi. Kodwa i-compressor ayinakuma ngexesha.

4. Emva kokuba icompressor iyekile, uxinzelelo oluphezulu noluphantsi luyalungelelaniswa ngokukhawuleza

Oku kungenxa yokuvuza okanye ukwaphuka okukhulu kweepleyiti zevalvu yokufunxa kunye neyokukhupha umoya, ukuqhekeka kwegasket phakathi koxinzelelo oluphezulu kunye noxinzelelo oluphantsi lwesilinda, kunye nokungena ngokukhawuleza kwegesi enoxinzelelo oluphezulu kwigumbi lokufunxa emva kokuvalwa.

5. I-compressor ayinakulayishwa okanye ikhutshwe ngokwesiqhelo

Kwinkqubo yokulawula amandla elawulwa luxinzelelo lweoyile, isizathu esiphambili sesi: uxinzelelo lweoyile yokuthambisa luphantsi kakhulu. (Ngokubanzi lubangelwa kukususwa kweebheringi kakhulu kunye nokuphuma kwepompo), lunokusonjululwa ngokuqinisa ivalvu yokulawula uxinzelelo lweoyile; i-piston yesilinda yokukhupha i-oyile ivuza kakhulu, kwaye isekethe yeoyile ivaliwe; isilinda yeoyile inamathele kwipiston okanye kwezinye iindlela; ivalvu yesolenoid ayisebenzi ngokuqhelekileyo, Okanye umongo wesinyithi unemagnetism eseleyo.

6. Ukusilela kwenkqubo yefriji

1. Ukuqandisa i-frosting kwi-evaporator coil: ukuqandisa kwi-evaporator coil akufuneki kudlule kwi-3mm. Ukuba ukuqandisa kukhulu kakhulu, ukumelana nobushushu kuya kwanda, nto leyo ebangela umahluko othile wobushushu phakathi kwe-evaporator kunye nendawo yokugcina ebandayo. I-refrigerant ayinakukwazi ukufunxa ubushushu obaneleyo ukuze iphele kwi-evaporator. Inani elikhulu le-refrigerant lifunxa ubushushu kwi-return pipe kwaye liphele, nto leyo enyusa ukuqandisa kwe-return pipe; ukongeza, ubushushu obukhulu obuviwa yi-expansion valve buncinci kakhulu okanye bube zero, nto leyo ebangela ukuba ivale okanye ivale, kwaye i-compressor iya kuma kancinci kungekudala. Nangona kunjalo, i-solenoid valve ayivalwanga, kwaye kusekho umthwalo othile wobushushu kwindawo yokugcina ebandayo. Emva kokuba uxinzelelo lwe-evaporator lunyukile, i-compressor iqala kwakhona, nto leyo ebangela ukuqala rhoqo. Okukhona iqabaka liqina kwi-evaporator, kokukhona le meko iya kuba mbi ngakumbi. Enyanisweni, iqabaka elikwiikhoyili ze-evaporator zeendawo ezimbini zokugcina ezibandayo ezinobushushu obuphantsi kule nkqubo lijiyile kakhulu, lifikelela kwi-1-2cm, nto leyo echaphazela kakhulu ukudluliselwa kobushushu kwaye ayinakunciphisa ubushushu bokugcina. Emva kokunyibilikisa, sebenzisa inkqubo kwakhona, kwaye ubushushu beendawo zokugcina ezimbini ezinobushushu obuphantsi bunokwehla bufike kwi-6-5°C.

2. Ixabiso lokuseta lomlawuli woxinzelelo oluphezulu noluphantsi alichanekanga: i-refrigerant esetyenziswa kwizixhobo zokufriji yi-R22, kwaye uxinzelelo oluphezulu lokucima umbane (umda ophezulu) lukhethwa kakhulu njengoxinzelelo lokulinganisa lwe-1.7-1.9mpa. Uxinzelelo (umda ophantsi) we-relay ye-low-voltage lunokuba luxinzelelo lokugcwalisa umbane oluhambelana nobushushu bokufuma boyilo -5°C (umahluko wobushushu bokudlulisa ubushushu), kodwa ngokubanzi lungabi ngaphantsi koxinzelelo lokulinganisa lwe-0.01 MPa. Umahluko woluhlu lohlengahlengiso lweswitshi ye-low-voltage ngokubanzi yi-0.1-0.2MPa. Ngamanye amaxesha isikali sexabiso lokuseta ulawulo loxinzelelo asichanekanga, kwaye ixabiso lesenzo langempela lixhomekeke kwixabiso elilinganisiweyo ngexesha lokulungisa iimpazamo. Xa uvavanya umlawuli woxinzelelo oluphantsi, vala kancinci ivalvu yokuvala ukufunxa ye-compressor, kwaye unikele ingqalelo kwixabiso lokubonisa le-suction pressure gauge. Amaxabiso okubonisa xa i-compressor imiswa kwaye iqalwa kwakhona yimida ephezulu nesezantsi yomlawuli woxinzelelo oluphantsi. Ukuvavanya isilawuli soxinzelelo oluphezulu, vala kancinci ivalvu yokumisa ukukhutshwa kwecompressor, kwaye ufunde ukufundwa kwegeyiji yoxinzelelo lokukhupha xa icompressor iyeka, oko kukuthi, uxinzelelo olunqumlekileyo loxinzelelo oluphezulu. Qinisekisa ukuthembeka kwegeyiji yoxinzelelo ngaphambi kovavanyo; ukuqinisekisa ukhuseleko, ivalvu yokukhupha akufuneki ivalwe ngokupheleleyo.

3. I-refrigerant enganelanga kwinkqubo: Kwisixhobo esinetanki yokugcina ulwelo, ngenxa yomsebenzi wokulungisa itanki yokugcina ulwelo, ngaphandle kokuba ngenxa yokunqongophala okukhulu kwe-refrigerant, ulwelo olunikezelwa yitanki yokugcina ulwelo alunakuhlala luqhubeka, nto leyo eya kuchaphazela ukusebenza okuqhelekileyo kwesixhobo. "I-Refrigerant ephantsi", oko kukuthi inqanaba eliphantsi lolwelo, ayizukuba nefuthe elikhulu ekusebenzeni kwenkqubo. Nangona kunjalo, kwisixhobo esingenatanki yokugcina ulwelo, ekubeni ubungakanani be-refrigerant kwinkqubo bumisela ngokuthe ngqo inqanaba lolwelo lwe-refrigerant kwi-condenser, ngaloo ndlela ichaphazela ukusebenza kwe-condenser kunye nenqanaba lokupholisa elingaphantsi kwe-refrigerant yolwelo, xa ubungakanani be-refrigerant kwinkqubo Xa ingonelanga, ngokuqinisekileyo kuya kukhokelela kutshintsho olulandelayo kwiimeko zokusebenza zesixhobo:

(1) I-compressor iyaqhubeka nokusebenza, kodwa ubushushu bokugcina abunakuncitshiswa;

(2) Uxinzelelo lokukhupha umoya kwi-compressor luyancipha;

(3) Uxinzelelo lokufunxa lwecompressor luphantsi, ubushushu obukhulu bokufunxa buyanda, iqabaka elingasemva kwe-evaporator liyanyibilika, kwaye intloko yesilinda yecompressor iyashushu;

(4) Inani elikhulu lamaqamza lingabonakala kwiziko lokuhamba kolwelo kwisalathisi sonikezelo lolwelo;

(5) Inqanaba lolwelo lwe-condenser ngokucacileyo liphantsi.

Xa ukuvulwa kwevalvu yokwandisa ubushushu kulungisiwe kancinci kakhulu, uxinzelelo lokufunxa luya kuncipha, i-evaporator iya kuba yingqele kwaye inyibilike, kwaye umbhobho wokufunxa uya kuba yingqele kwaye unyibilike. Ke ngoko, xa inqanaba lefriji lingenakubonwa ngokuchanekileyo. Ukuze kugwetywe ukuba ubungakanani befriji kwinkqubo alwanelanga na, ezi ndlela zilandelayo zingasetyenziswa:

Yeka ukusebenzisa ivalvu yokwandisa ubushushu, vula kwaye ulungise ivalvu yokwandisa ngesandla ngokufanelekileyo, kwaye ujonge ukusebenza kwenkqubo ukuze ubone ukuba ingabuyela esiqhelweni na. Ukuba ingabuyela esiqhelweni, oko kuthetha ukuba ivalvu yokwandisa ubushushu ayilungiswanga ngokufanelekileyo, kungenjalo kukho ukungabikho kwe-refrigerant kwinkqubo. I-refrigerant engonelanga kwinkqubo (ukuba ayingombane) yimbangela yokuvuza. Ke ngoko, emva kokuba kufunyenwe ukuba i-refrigerant yenkqubo ayonelanga, ukuvuza kufuneka kubonwe kuqala, kwaye i-refrigerant kufuneka yongezwe emva kokuba ukuvuza kususiwe.