Ice machine refrigeration problem, solution

Can anyone help me answer this question? Thank you.

First of all, "superheat" refers to the temperature corresponding to the phase change. For example, the freezing point of water under standard working conditions is zero degrees. The value of water above zero degrees is its superheat. Or under standard conditions, the boiling point temperature of water is 100°C. If a method is used to obtain steam higher than this temperature, it is the superheat of the steam. As for the evaporator you mentioned, it should be the refrigerant (refrigeration medium) in the evaporator of the refrigerator (ice machine, refrigerator, chiller,,,) unit, which exchanges heat through its phase change. The process is roughly as follows: The refrigerant is liquid from the condenser (water cooler) in the unit - filtering, drying and throttling (reducing the pressure from the supercooled liquid to a saturated liquid) - evaporator (the refrigerant absorbs heat through the evaporator and releases cold energy) to vaporize and turn into a gas. ——It enters the compressor to boost the pressure of the refrigerant gas,,,,--flows into the condenser and turns into liquid,,,,,,. Circulation effect. The temperature you are referring to may be the cooling phenomenon obtained when the cooled medium passes through the evaporator :) For reference.

First of all, thank you. I understand the functions of the evaporator and the condenser, and I also understand the refrigeration cycle mechanism. However, I don’t understand how the superheated steam at the compressor inlet is obtained in the entire system. Is it obtained by heat exchange with the brine in the evaporator? If so, how is the degree of superheat controlled?

Control the evaporation volume and temperature by controlling the opening of the valve on the evaporator

Superheated steam is obtained by exchanging heat between brine and refrigerant.

In layman's terms, the difference between the evaporation temperature of -15 degrees and the suction temperature of -8.1 degrees is 6.9 degrees. This is from the equipment that uses refrigerant evaporative cooling back to the compressor inlet of the unit. The design allows the gas phase refrigerant pipeline system to have a cooling capacity loss equivalent to a temperature rise of 6.9 degrees.

How could it be possible without equipment and without God? In the past, the equipment was called thermal expansion valve. Nowadays, the more advanced equipment generally uses electronic expansion valve. Depending on your motor size, the electronic expansion valve should be very small, about the size of a fist, and should be placed on the equipment pipeline, which is the equipment with the water-powder content observation hole.

If there is a filter, it is not considered a device. :lol