The entire equipment is divided into a refrigeration cycle system and an ice making and scraping ice water cycle system, which continuously produces ice without intermittent de icing, which is the biggest difference from a block ice machine.
1、 Refrigeration circuit (providing low temperature)
- The compressor sucks in low-temperature and low-pressure refrigerant gas and compresses it into high-temperature and high-pressure gas;
- High temperature gas enters the condenser, undergoes water/air cooling for heat dissipation, and condenses into high-pressure liquid refrigerant;
- High pressure liquid is throttled and depressurized through an expansion valve, becoming a low-temperature and low-pressure gas-liquid mixture;
- The refrigerant enters the interlayer of the vertical cylindrical evaporator, evaporates and absorbs heat inside the cylinder wall, and cools the evaporator cylinder wall to -15 ℃~-25 ℃; After absorbing heat, the refrigerant returns to gas and returns to the compressor, repeating the cycle.
2、 Ice making, scraping, water circulation (forming flake ice) - Water replenishment: The water tank automatically replenishes water, and the circulating water pump sends the water into the top water tray;
- Water distribution: The water distribution tray and sprinkler tray evenly spray water onto the inner wall of the low-temperature evaporator, forming a uniform water film;
- Freezing: The water film rapidly exchanges heat with the sub zero cylinder wall and condenses into a thin ice layer of 1.5-2.2mm;
- Ice scraping: The reducer drives the main shaft and the ice blade to slowly rotate. The ice blade continuously scrapes off the thin ice on the cylinder wall, breaking it into pieces of ice that fall into the lower ice storage by gravity;
- Return water: unfrozen water flows to the lower water tray, returns to the water tank, and continues to circulate and spray ice making.
3、 Function of core components
-Evaporator (ice bucket): Core heat exchanger, 304 stainless steel for freshwater models; 316L stainless steel for seawater vessels;
-Ice blade: Scrape off the ice layer, and the gap between the ice blades determines the thickness of the ice flakes; Ice blade wear can lead to a decrease in ice production;
-Gearbox: Drive the ice skate and sprinkler disc to rotate at low speed;
-PLC electrical control: automatic water replenishment, water shortage protection, full ice shutdown, high and low voltage protection, overload protection.
