Indima yezinto eziphambili zoomatshini owomileyo wefriji
I-1. I-Recressor yokuQeqesha
Ingqondo yokwenziwa kwefriji yintliziyo yenkqubo yefriji, kwaye uninzi lweengcinezelo namhlanje zisebenzisa i-procicrecing ye-hermetic. Raising the refrigerant from low to high pressure and circulating the refrigerant continuously, the system continuously discharges internal heat to an environment above the system temperature.
I-2. UCendoncer
The function of the condenser is to cool the high-pressure, superheated refrigerant vapor discharged by the refrigerant compressor into a liquid refrigerant, and its heat is taken away by the cooling water. Oku kuvumela inkqubo yefriji yokuqhubeka ngokuqhubekayo.
I-3. Evaporator
The thermostatic expansion valve (capillary) is the throttling mechanism of the refrigeration system. Kwisigaba sokwenza ifriji, ukuhanjiswa kwefriji ye-Evaporator kunye noMlawuli wayo kuyafezekiswa ngendlela ye-billy. Indlela yokugqwesa ivumela ifriji yokufaka i-Evaporator evela kubushushu obuphakathi kunye nolwelo oluphezulu.
I-5. Ubushushu bobushushu
The vast majority of refrigeration dryers have a heat exchanger, which is a heat exchanger that exchanges heat between air and air, generally a tubular heat exchanger (also known as a shell and tube heat exchanger). The main function of the heat exchanger in the refrigeration dryer is to “recover” the cooling capacity carried by the compressed air after being cooled by the evaporator, and use this part of the cooling capacity to cool the compressed air at a higher temperature carrying a large amount of water vapor (that is, the saturated compressed air discharged from the air compressor, cooled by the rear cooler of the air compressor, and then separated by air and water is Ngokubanzi ngaphezulu kwe-40 ° C), ngaloo ndlela kunciphisa umthwalo wokufudumeza kwefriji kunye nenkqubo yokomisa kunye nokufezekisa injongo yokonga amandla. On the other hand, the temperature of low-temperature compressed air in the heat exchanger is recovered, so that the outer wall of the pipeline transporting compressed air does not cause “condensation” phenomenon due to the temperature below the ambient temperature. In addition, after the temperature of the compressed air rises, the relative humidity of the compressed air after drying is reduced (generally less than 20%), which is beneficial to prevent the rust of the metal. Some users (eg with air separation plants) need compressed air with low moisture content and low temperature, so the refrigeration dryer is no longer equipped with a heat exchanger. Kuba ubushushu abufakiwe, umoya obandayo awunakuphinda usebenze kwakhona, kwaye umthwalo wobushushu we-Evaporator izonyusa kakhulu. In this case, not only does the power of the refrigeration compressor need to be increased to compensate for energy, but also the other components of the entire refrigeration system (evaporator, condenser and throttling components) need to be increased accordingly. From the perspective of energy recovery, we always hope that the higher the exhaust temperature of the refrigeration dryer, the better (high exhaust temperature, indicating more energy recovery), and it is best that there is no temperature difference between the inlet and outlet. But in fact, it is not possible to achieve this, when the air inlet temperature is below 45 °C, it is not uncommon for the inlet and outlet temperatures of the refrigeration dryer to differ by more than 15 °C.
Ukulungiswa komoya
Ukulungiswa kunye nokuhlolwa: Gcina iqondo lokushisa libonisa iqondo lokuya kwifriji le-zero.
Ukunciphisa ubushushu bomoya oxinzelelweyo, amaqondo obushushu efrijini kufuneka abeke phantsi kakhulu. When the refrigeration dryer cools the compressed air, there is a layer of film-like condensate on the surface of the fin of the evaporator liner, if the surface temperature of the fin is below zero due to the decrease in the evaporation temperature, the surface condensate may freeze, at this time:
A. Due to the attachment of a layer of ice with a much smaller thermal conductivity on the surface of the inner bladder fin of the evaporator, the heat exchange efficiency is greatly reduced, the compressed air can not be fully cooled, and because of the insufficient heat absorption, the refrigerant evaporation temperature may be further reduced, and the result of such a cycle will inevitably bring many adverse consequences to the refrigeration system (njengokuthi "Umphumo wamanzi");
Vavanya
1. Uxinzelelo phakathi kwe-inlet kunye ne-Outlet yomoya oxinzelelweyo awudluli kwi-0.035MPA;
I-2. I-TIUGRATION CRAUTOTIOND 0.4MPA-0PA;
4. Rhoqo hlala qaphela iinkqubo zokuntywila kunye neenkqubo zokuntywila
Umcimbi wokuSebenza
1.1 Zonke ii-valves zenkqubo yenethiwekhi yombhobho zikwimeko eqhelekileyo yokulinda;
1.2 I-Vove ivaliwe ivelve epholileyo, uxinzelelo lwamanzi kufuneka libe phakathi kwe-0.15-0.4MPA, kunye neqondo lobushushu lamanzi lingaphantsi ko-31.
1.3 I-Sprintants Medicanting Right Appration App kunye neMitha yoQinisekiso oluPhakamileyo kwiDeshboard ineempawu kwaye zilingana;
Inkqubo ye-Boot Pow
2.1 Cofa iqhosha lokuqala, umsasazi we-AC uyalibaziseka kangangemizuzu emi-3 kwaye emva koko uqale, kwaye i-compressor yefriji iqala ukubaleka;
2.2 Observe the dashboard, the refrigerant high-pressure meter should slowly rise to about 1.4Mpa, and the refrigerant low-pressure meter should slowly drop to about 0.4Mpa; Ngeli xesha, umatshini ufake ilizwe eliqhelekileyo lokusebenza.
2.5 Jonga ukuba i-crainage yomthamo ozenzekelayo iqhelekile;
2.6 Jonga iimeko zomsebenzi womisa rhoqo, urekhode uxinzelelo lomoya kunye nokuphuma koxinzelelo, uxinzelelo oluphezulu kwaye luphantsi kunye noxinzelelo lwamalahle, njl.
Inkqubo e-3 yokuvala;
3.1 Vala ivalva yomoya.
3.2 Vala ivalve ye-Inlet Air;
3.3 Cinezela iqhosha lokumisa.
Amanyathelo ama-4
4.1 Kulumkele ukubaleka ixesha elide ngaphandle komthwalo.
4.2 Musa ukuqalisa i-tristressor yenyoka ngokuqhubekayo ngokuqhubekayo, kwaye inani eliqalayo kwaye limamele ngeyure ngeyure aliyi kuba ngaphezulu kwamaxesha ama-6.
4.3 Ukuze kuqinisekiswe umgangatho wokubonelela ngegesi, qiniseka ukuba ungathobelanga ngomyalelo wokuqalisa nokuma.
4.3.1 Qala: Vumela i-ruber rume kangangemizuzu emi-3-5 ngaphambi kokuvula i-air compressor okanye ivalve ye-intelet.
4.3.2 Ukuvalwa: Cima i-Air compressor okanye i-valve yokuphuma ye-Outle kuqala kwaye icime i-super.
4.6 Iqondo lobushushu le-Inlet alidluli kwi-45 degrees.
4.7 Iqondo lobushushu lamanzi apholileyo alidluli kwi-31 degrees.
4.8 Nceda ungavuli xa iqondo lobushushu lingaphantsi kwe-2σ.
4.9 Ixesha lokuThelwa ngokuThenga kwiKhabhinethi yoLawulo loMbane aliyi kuba ngaphantsi kwemizuzu emi-3.
4.10 Umsebenzi ngokubanzi wexesha elide njengoko ulawula "ukuqala" kunye "yeka" amaqhosha
4.11 The air-cooled refrigeration dryer cooling fan is controlled by the pressure switch, and it is normal for the fan not to turn when the refrigeration dryer works at a low ambient temperature. Njengoko uxinzelelo oluphezulu lwefriji lunyuke, i-fan iqala ngokuzenzekelayo.
IXESHA LOKUQALA: AUG-26-2023