Rola pêkhatên sereke yên rûnê sarincokê
1 Compressor Serî
2. Condenser
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. Ev dihêle pêvajoya sarincokê berdewam bike.
4. Valve Expansion Thermostatic (Capillary)
Valavakirina berfirehbûna thermostatic (capillary) Mekanîzmaya hilweşandinê ya pergala sarincokê ye. In the refrigeration dryer, the supply of the evaporator refrigerant and its regulator is realized through the throttling mechanism. Mekanîzmaya avêtinê dihêle ku sarincokê têkeve nav avaporatorê ji germahiya bilind û zexta bilind.
5. Exchanger Heat
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 generally above 40 °C), thereby reducing the heating load of the refrigeration and drying system and achieving the purpose of saving energy. 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. Ji ber ku guhartina germê nehatiye saz kirin, hewa sar nikare were nûvekirin, û barîna germê ya evaporatorê pir zêde bibe. 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.
Pêvajoya hewayî ya tevlihevkirî
Maintenance û çavdêrîkirin: germahiya hewayê ya hewayê ya rûnê li jor zero biparêze.
Ji bo kêmkirina germahiya hewayê ya zextkirî, germahiya avaporasyonê ya sarincê jî divê pir kêm be. 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 pergal (wek "kompresyona liquid");
Îmtîhankirin
1. Cûdahiya zextê di navbera intlet û deriyê hewayê de compressed ji 0.035mpa derbas nabe;
2. Avakirina pîvana zextê ya avê 0.4mpa-0.5mpa;
3. Pîvana zexta zexta bilind 1.2mpa-1.6mpa
4. Bi gelemperî pergalên kemilandî û sewalan temaşe dikin
Mijara Operasyonê
1 Berî Bootkirinê kontrol bikin
1.1 Hemî valvesên pergala torê ya torê ya torê di dewleta xwe ya standby de ne;
1.2 Valava ava sarbûnê tê vekirin, divê zexta avê di navbera 0.15-0.4mpa de be, û germahiya avê li jêr 31ċ e;
1.3 Meterta zexta bilind a sarincê û metreya zexta kêm a sarincê li ser dashboard nîşanên hene û bi bingehîn wekhev in;
1.4 Voltaja dabînkirina hêzê kontrol bikin, ku ji% 10-ê nirxa nirxê derbas nabe.
2 pêvajoyê boot
2.1 Bişkoka Destpêkê çap bike, pêwendiya AC ji bo 3 hûrdeman dereng maye û piştre dest pê kir, û kompresora sarincê dest pê dike;
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; Di vê demê de, makîneyek ketiye nav rewşa xebata normal.
2.6 Conditionsertên xebatê yên rûnê bi rêkûpêk kontrol bikin, zexta hewayê û zexta hewayê, zexta bilind û kêm a komirê sar, û hwd.
3 prosedûra şuştinê;
3.1 valahiya hewayê dorpêç bikin;
3.2 Li valahiya hewayê ya hewşê bigire;
3.3 Bişkojka STOP bitikîne.
4 pêşbîniyên
4.1 Ji bo demek dirêj bêyî barkirinê dûr bisekinin.
4.2 Bi domdarî kompresorên sarincê dest pê nakin, û hejmara destpêkirinê û rawestandina her demjimêran dê ji 6 caran mezintir nebe.
4.3 Ji bo ku hûn kalîteya gazê ya gazê piştrast bikin, dê bi fermana destpêkirin û rawestandinê bimînin.
4.3.1 Destpêk: Bila zuwa 3-5 hûrdeman berî vekirina hewaya hewayê an valahiya hewayê bisekinin.
4.3.2 Shutdown: Pêşîn Valava Hewayê an valahiya deriyê pêşîn vekişînin û paşê zuwa bizivirin.
4.5 Zexta hewayê ji 0,95mpa derbas nabe.
4.6 Germahiya hewayê ya hewayê ji 45 dereceyan derbas nabe.
4.8 Ji kerema xwe gava ku germahiya hawîrdorê ji 2ċ kêmtir be.
4.9 Mîhenga Ragihandina Demê ya di kabîneya Kontrolê ya Elektrîkî de ji 3 hûrdeman kêmtir nabe.
4.10 Operasyona Giştî heya ku hûn bişkojkên "Destpêk" û "Stop" kontrol bikin
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. Wekî ku zexta bilind a sarincokê zêde dibe, fan bixweber dest pê dike.
Demjimêra paşîn: Tebax-26-2023