Six reasons for the slowing down of ice speed in ice making machines

The appearance of the evaporator is prone to scale, oil stains, or excessive dust accumulation, resulting in a decrease in heat transfer efficiency. This situation is mainly due to the equipment not being used for a long time, the water quality not containing it, and the poor operating environment of the equipment, which leads to poor heat transfer efficiency of the evaporator. In addition, the surface of the evaporator is not cleaned for a long time, and the dust accumulation is too thick, resulting in a significant decrease in heat transfer power The ice maker suffers from significant cold loss due to poor insulation or sealing function. Poor insulation function is due to inadequate insulation layer thickness of pipes and evaporator plates, resulting in poor insulation and insulation effects. It is mainly caused by improper selection of insulation layer thickness during the manufacturer's design or production process. In addition, during the operation of the equipment, the insulation and moisture-proof function of the insulation material may be damaged, causing the insulation layer to become damp, deformed, and even ulcerated, which can only reduce its insulation and insulation. Another important reason for the poor freezing effect of the ice maker is the poor insulation and sealing function of the equipment, with a lot of hot air entering the equipment from the leakage point. If condensation occurs around the insulation of the equipment, it indicates that the sealing is not tight.

3、 There is a lot of air or refrigeration oil in the evaporator of the ice maker, and the heat transfer effect decreases. Once more refrigeration oil is attached to the inner and outer surfaces of the evaporator heat transfer tube, the heat transfer coefficient will decrease. Similarly, if there is more air in the heat transfer tube, the heat transfer area of the evaporator will decrease, and its heat transfer power will also significantly decrease, and the freezing effect will be slowed down accordingly. Therefore, in daily work protection, attention should be paid to timely cleaning the oil stains on the inner and outer surfaces of the evaporator heat transfer tubes to improve the heat transfer power of the evaporator.

4、 Improper or blocked throttle valve adjustment, refrigerant flow rate too high or too low

Improper or blocked throttle valve adjustment can directly affect the refrigerant flow entering the evaporator. When the throttle valve is too wide open, the refrigerant flow rate is too high, and the transpiration pressure and temperature also increase. The freezing speed of the ice maker will slow down. At the same time, when the throttle valve is too small or blocked, the refrigerant flow rate will also decrease, and the cooling capacity of the system will also decrease, and the freezing speed will also slow down. Generally, the refrigerant flow rate of the throttle valve can be determined by checking the transpiration pressure, transpiration temperature, and frost formation of the suction pipe. Throttling valve blockage is an important factor affecting refrigerant flow, and the main causes of throttling valve blockage are ice blockage and dirty blockage. Ice blockage is due to the poor drying effect of the dryer. When water in the refrigerant is diverted through the throttle valve, the temperature drops below 0 ℃, and the water in the refrigerant freezes into ice, blocking the throttle valve hole; Dirty blockage is caused by the accumulation of a large amount of dirt on the inlet filter screen of the throttle valve, which hinders the flow of refrigerant and creates blockage.

6、 Low compressor power, unsatisfactory refrigeration capacity for ice making load

Due to long-term operation, compressors suffer from severe wear and tear, leading to an increase in the gap between compression equipment and a corresponding decrease in sealing function. As a result, the gas transmission coefficient of the compressor also decreases, resulting in a decrease in refrigeration capacity. When the refrigeration capacity is less than the ice making heat load, the ice making power will decrease. The refrigeration capacity of the compressor can be roughly determined by checking the suction and exhaust pressures of the compressor. If the refrigeration of the compressor can only decrease, the common method is to replace the cylinder sleeve and piston ring of the compressor. If the replacement still cannot work, other factors should be considered, and even the machine should be disassembled for maintenance to eliminate the fault factors.

7、 Lack of refrigeration dose in the system leads to a lack of refrigeration capability

There are two main reasons for the lack of refrigerant circulation. Firstly, there is a lack of refrigerant charge. At this moment, only sufficient refrigerant needs to be added. Another reason is that the system refrigerant

There are many leaks, and in such situations, the leakage point should be checked first, with a focus on inspecting the joints of various pipelines and valves. After repairing the leaking area, sufficient refrigerant should be added.

Advantages/Features of Kelly Refrigeration Sheet Ice Machine

1. The ice bucket of the ice maker is made of special alloy materials, which have undergone precise welding and surface treatment, ensuring efficient thermal conductivity and longer service life.

2. The secondary forming stainless steel ice skate without welding can work for a long time.

3. High stability and low failure rate.

4. Top brand components: Bizer, Danfoss, Siemens, LS, Schneider.

5. Direct low temperature, low ice temperature, up to -8 ℃ or below.

6. Ice formation is dry, clean, aesthetically pleasing in shape, not prone to clumping, has good fluidity, and is hygienic and convenient.

7. With a sheet-like structure, it has a large contact area with cold storage and excellent cooling effect.

8. The ice sheet has no sharp edges and corners, which will not damage the surface of the cold storage, and is very convenient for storage and transportation.

9. The thickness of ice can reach 1mm to 2mm, and it can be used at any time without the need for an ice crusher.