Structural features of a refrigerator: A standard refrigerator is composed of five parts connected in series: a compressor, a condenser, an evaporator, a drying filter, and an expansion throttle valve. It is filled with an appropriate amount of Refrigerant (refrigerant) is used by electrical appliances (including controllers) to control the operation of the compressor according to the needs of the environment to achieve the purpose of cooling and heat transfer.
1. As the heart of the refrigerator, the compressor adopts Taiwan Hanzhong semi-hermetic screw compressor. It has a semi-hermetic design and only three moving parts. It has the characteristics of small number of parts and low failure rate.
2 The evaporator (titanium tube type, 316L stainless steel type) and condenser are made according to the national refrigeration industry material usage indicators, and the cost is within 1%;
3 Expansion valve, filter Regulators, high and low pressure gauges, solenoid valves and other refrigeration components are all from internationally renowned brands such as France, Taiwan and Japan, with high precision, low failure rate and long service life.
4. Using Japanese electronic thermostat, it can accurately control the water temperature between +5℃ and +35℃, with a temperature difference of ±1℃. 5. All controls are located on the front of the freezer, just press the switch , adjust to the required temperature, and then it can operate automatically, which is simple and fast.
6. Equipped with safety protection devices such as compressor overload protection, pump overload protection, high and low pressure abnormality protection, lack of water level protection, antifreeze protection and electronic time delay, abnormal alarm buzzer and fault indicator light The warning system can automatically cut off the circuit, making it safe and reliable.
Compressor
Internationally famous brand screw refrigeration compressor, American and European patented technology
The most advanced line of high-efficiency 5:6 third-generation asymmetrical Toothed screw
Semi-closed design, with only three moving parts, features fewer parts and low failure rate
It can realize graded or stepless energy adjustment, and the control is flexible and convenient. Energy-saving, efficient and easy to maintain
The world-famous SKF and FAG zero-clearance multiple thrust and radial bearings are selected, with precise structure and high reliability
Three-stage oil separation filter. The oil effect is good, effectively ensuring the normal operation of the compressor and efficient heat exchange of the heat exchanger
Adopts a pump-less built-in differential pressure oil supply lubrication system, which is energy-saving, efficient and reliable
Specialized fluorine-resistant low iron loss motor design, equipped with reliable motor overheating protection device, effectively ensuring efficient and reliable operation of the motor
Equipped with a liquid refrigerant injection system under low temperature and heat pump conditions, effectively reducing the work of key components load and exhaust temperature to improve the working reliability of the compressor
Patented exhaust chamber design and continuous air delivery by the rotor ensure low vibration and low noise of the compressor
Exhaust port Installing an exhaust check valve can prevent the rotor from reversing during shutdown. Water-cooled condenser
The washable water-cooled condenser uses reinforced heat exchange tubes (the outer fins are ribbed inside), which are expanded and connected to the tube sheet On the water side, the design pressure is 10 bar, and the fluorine side design pressure is 25 bar. It is equipped with a safety valve to ensure the safety of the equipment.
Liquid line control valve
The imported ball valve can effectively reduce the resistance of the refrigerant liquid pipeline; at the same time, when the filter is dirty and blocked, it is easy to replace the filter element and clean the filter. cylinder.
The dry filter
adopts a welded angle filter whose filter element is imported molecular sieve. It can filter water, acid and other impurities, and is easy to replace.
Expansion valve
The imported thermal expansion valve is used. Its function is to throttle and cool the low-temperature and high-pressure supercooled liquid into a low-temperature and low-pressure liquid and automatically adjust the refrigerant into the evaporator according to the evaporation temperature. flow of the evaporator and maintain a certain pressure to ensure the evaporation rate in the evaporator.
Economizer
The imported plate heat exchanger is used to further increase the subcooling degree of the refrigerant, increase the refrigeration capacity, and change single-stage compression to quasi-two-stage compression, improving improves the efficiency of the compressor itself. The configuration of the economizer improves the refrigeration efficiency and reduces the operating cost of the unit.
Electrical control system
The main components are all imported to ensure the reliability of unit operation. The unit control adopts PLC touch screen control, making the operation easier.