This series of water-cooled screw industrial low-temperature freezers can provide -37 ℃ -5 ° C low-temperature refrigerant The main characteristics are as follows:

1. Industrial grade high configuration and high standard design: The water-cooled screw industrial low-temperature freezer adopts high configuration and optimized system integration to cast high-quality products. The professional team adopts industrial grade standard design, with low noise and small vibration. Designed according to industrial standards, it is suitable for 24-hour uninterrupted operation all year round;

2. Integrating multiple innovative technologies to ensure efficient, energy-saving, stable, and excellent performance of the product:

1) Innovative energy-saving technology for economic devices: saving more than 5% energy compared to units without economic devices;

2) PLC programmable control technology: realizing the communication control of the stop and start signal of supporting equipment such as water tower and water pump, avoiding unnecessary energy loss;

3) Efficient vapor-liquid separation technology: ensures efficient heat transfer in shell and tube heat exchangers and sufficient evaporation and heat transfer in refrigerant liquid reflux evaporators;

4) Low temperature oil cooling technology: By using low-temperature refrigerant to cool the refrigeration oil, it is then injected into the compressor to fully lubricate the moving parts inside the compressor and maximize the heat generated by the motor, avoiding long-term high temperatures inside the motor and ensuring efficient, stable, and long-lasting operation of the motor and flexibility of the moving parts.

3. Compact structure, superior performance, stable operation:

The water-cooled screw industrial low-temperature freezer uses high-quality imported twin-screw bearings, whose moving parts are only 1/10 of the piston compressor and vibration is only 1/5 of the piston compressor. High precision German FAG and Swedish SKF bearings are used in both radial and axial directions, combined with axial thrust balance drums to effectively balance axial loads. The failure rate is only 1/10 of that of piston compressors, and with world-renowned control components, the unit can operate safely and stably for a long time. The condenser and dry evaporator of the unit are both equipped with high-efficiency heat transfer tubes, and the main engine uses imported high-efficiency semi enclosed twin-screw compressors, which have many advantages such as compact structure, small volume, light weight, and small installation position. The semi enclosed twin-screw compressor has fewer moving parts and uses a 5:6 ultra efficient screw rotor. There is no direct wear between the rotors, making it highly reliable. Due to the fact that the screw machine is a continuous compressor without pulsation, the unit has the characteristics of stable performance, low noise, small vibration, and smooth operation. Improved efficiency by 20% -30% compared to reciprocating compressors, and has obtained IS09001 international quality certification and patents from multiple European and American countries;

4. A comprehensive energy control system:

The water-cooled screw industrial low-temperature freezer has a four stage and stepless capacity control system, with energy regulation of [100, 75, 50, 25 (or start, 0%]), which automatically adjusts the start and stop of the unit according to load changes, making it more energy-efficient. During operation, the computer control system will change the energy output of the unit based on changes in the client's thermal load. The microcomputer quickly determines the signal to push the slide valve to the required energy by monitoring the difference between the actual load measured and the user's setting. In multiple systems, it works in an optimized way that minimizes electrical energy consumption at the optimal cooling output, not only exhibiting excellent performance at full load, but also having high operating efficiency even at partial load;

5. Independent operation of refrigeration system:

A large capacity water-cooled screw industrial low-temperature freezer has two or more independent refrigeration circuits, so even if one circuit fails/needs maintenance, the other circuit can still operate normally. Equipped with backup function, especially suitable for industrial non-stop environments; The imported PLC human-machine interface is a LCD touch screen with graphical display, easy to operate, and available in both Chinese and English. Equipped with RS485 national standard communication interface, it can be connected to DCS system and connected to the entire factory automation network for remote control and monitoring. The parameters are displayed in two ways: graphics and text tables, which are clear at a glance;, Select the operation according to the menu on the screen, and simply touch the display button on the screen with your finger.

6. Microcomputer programmable PLC controller with multiple protection functions:

The water-cooled screw industrial low-temperature freezer has protection functions such as compressor coil temperature too high, oil preheating timed on/off, cold water flow switch, cold water outlet temperature too low protection, Y-△ start failure protection, exhaust temperature too high protection, compressor overload protection, power-off memory function, frequent start stop protection, voltage abnormal protection, low oil level protection, high and low voltage protection, etc;

7. Multiple protections, safe, reliable, and stable:

The water-cooled screw industrial low-temperature freezer provides complete protection from the refrigeration system, electrical system to the water system, fully ensuring the safe and normal operation of the unit. Equipped with safety protections such as compressor motor overheating, overcurrent, abnormal phase sequence, high exhaust temperature, high pressure, low pressure, low pressure difference, freezing point, and interruption, as well as pressure control devices for the refrigeration system, the unit can operate without fail; In addition to the internal protection module of the compressor providing functions such as overvoltage, undervoltage, phase loss, and overload protection, the pressure control device of the refrigeration system can ensure that the unit works perfectly;

8. Easy to install and run in a timely manner:

The water-cooled screw industrial low-temperature freezer industrial grade low-temperature freezer dedicated testing platform ensures that all components of the unit have been installed, debugged and tested under different operating conditions in the factory, ensuring that each equipment is 100% qualified and has been filled with refrigerant and refrigeration oil. Users only need to connect the water and circuit to put it into use, greatly reducing on-site installation and debugging time;

If you need more technical support and related services for water-cooled screw industrial low-temperature freezers, please contact HanLeng service personnel for professional consultation and services at any time