Evaporative screw freezer

Evaporative screw freezer

The host adopts the international third-generation 5:6 asymmetric rotor semi enclosed screw compressor, motor and compressor, integrated without shaft seal leakage concerns. The control program of two or more compressors is combined to reasonably balance the load of the head components and extend the service life of the unit. Two desktop and multiple compressors use multiple refrigeration circuits. When one circuit needs maintenance, the other circuits can still operate normally and have backup functions. The compressor adopts star delta voltage reduction starting to avoid impact on the power grid. Siemens PLC touch true color screen, microcomputer control, user-friendly and easy to operate main interface

Automatically detect the temperature of cold water output, and the system effectively tracks the on-site usage load by automatically adjusting the energy of the compressor,The display screen is intuitive and clear, and various data during operation can be read out at any time for reference.

When there is a malfunction, it can automatically sound an alarm in a timely manner and display the cause of the malfunction for easy handling.Relevant feedback information can be output to other main control systems according to on-site needs.

The original content can be modified according to the needs on site, such as the location of the air conditioner, various protection points of the unit, pressure, etc. The evaporative condenser is a heat exchange equipment developed and updated by absorbing domestic and foreign heat exchange technologies.

Evaporative screw freezerThe evaporative condenser uses water and air as cooling media to exchange heat with the high-temperature gaseous cooling inside the coil, and the refrigerant condenses from the gaseous state to the liquid state. The condenser is equipped with a water distribution system, condenser coil group, packing heat exchange layer, and water separator inside; External circulating water pump, electronic water descaling device, and axial flow fan installed on the top of the coil side. Under the action of the axial flow fan, the condenser chamber is in a negative pressure state. During operation, the cooling water is evenly and completely covered on the surface of the coil by the water distribution system under the strong wind force. High temperature gaseous refrigerant enters from the upper part of the coil, and condensed liquid refrigerant flows out from the bottom of the coil. In this process, the high-temperature refrigerant exchanges heat with the water and air outside the coil, and with the help of wind force, the heat transfer effect is significantly improved. After absorbing heat, the temperature of the cooling water and air increases, and some of the cooling water vaporizes to form water vapor, which carries away a large amount of heat and is sucked away by the fan and discharged into the atmosphere. The moisture in the hot air is trapped in the water collection tank by the water remover. The high-temperature cooling water that has not been vaporized flows into the packing heat exchange layer and is cooled by the air passing through it. After sufficient cooling, the cooling water flows back to the water collection tank for the circulation pump to re send to the water distribution system for continued circulation. The water lost to the atmosphere is promptly replenished by the water float ball valve in the collection tank.

Evaporative screw freezerDue to the fact that air and spray water flow through the coil in the same direction, the spray water can largely cover the surface of the coil, ensuring that the surface of the coil is completely moist. Compared to the reverse feng shui structure, it greatly reduces the formation of dry spots and scale on the coil wall.