Split Extreme Cold Variable Frequency Heat Pump

Technical background

Extreme cold variable frequency air energy is a combination of deep freezing technology and high temperature heat pump technology. At present, the national standard performance index of air energy is -12℃, and the COP is 2.17. However, the extremely cold variable frequency air energy can be used normally at -50℃. The 45℃ COP can reach more than 2, completely breaking through the technical bottleneck that low ambient temperature heat pumps cannot overcome.

Digital frequency conversion freezing air (hot air) unit internal unit,

The shell is made of 304 stainless steel. Its advantages are 1. High purity: 304 stainless steel contains about 95% pure ferrite, which has good mechanical properties and corrosion resistance; 2. Good plasticity and toughness: due to its high strength and low expansion Coefficient, 304 stainless steel can be easily processed into various shapes; 3. Easy to polish and clean, with high surface smoothness, suitable for use in the food processing industry.

The motor adopts an internationally renowned brand of DC digital variable frequency motor.

1. Energy saving and high efficiency: The variable frequency motor can adjust the speed in real time according to the load demand, and has higher energy efficiency than the traditional fixed speed motor. Energy consumption can be reduced under light load and partial load conditions to achieve energy saving goals.

2. Wide speed adjustment range: The speed of the variable frequency motor can be continuously adjusted within a certain range, and precise speed adjustment can be performed according to actual needs to adapt to different working conditions and process requirements.

3. Smooth starting and braking: Since the frequency converter can achieve stepless frequency conversion and precise control, the variable frequency motor can start and stop smoothly during the starting and braking processes, reducing the impact of machinery and equipment and extending its service life.

4. Improve production efficiency: Variable frequency motors have the characteristics of rapid response and can adjust the rotation speed in real time according to production needs, improving the flexibility and response speed of production lines and equipment, thereby increasing production efficiency.

5. Reduce maintenance costs of mechanical equipment: Variable frequency motors can reduce the impact of machinery and equipment during starting and braking, reduce vibration and noise, and reduce equipment maintenance and repair costs.

6. Expand the scope of application: Due to the large adjustable range of speed, variable frequency motors are widely used in various industrial fields, such as wind power, water pumps, fans, compressors, conveyors, etc.

Generally speaking, variable frequency motors have the advantages of energy saving and high efficiency, wide speed adjustment range, and smooth starting and braking. They can improve production efficiency and reduce maintenance costs, and are suitable for various industrial and commercial applications.

The evaporator of the internal unit has been continuously optimized by Jinhanghuameirun's R&D team. It uses a customized evaporator with internal threads to perfectly integrate the unit with the internal unit to achieve high efficiency and energy saving. The hydrophilic fins prevent condensed water from forming bridges and condensation. Dew, not easy to frost, more thorough and clean when defrosting.

The differences between arctic air source heat pumps and conventional air source heat pumps are:

1. The operating temperature range is different

The Split extreme cold variable frequency heat pump can be used normally at -50℃, the conventional air source heat pump can be used normally at an ambient temperature above -5℃, and the ultra-low temperature air source heat pump can be used normally at an ambient temperature above -25℃. The split extreme cold air source heat pump has good heating effect at -50°C in cold northern areas and is not restricted by low-temperature environments. The heating efficiency of conventional air source heat pumps will drop significantly when the temperature is lower than -25°C. Therefore, when choosing an air source heat pump in the northeast and northwest regions of my country, you must consider the use area of ​​the air source heat pump.

2. The defrosting capabilities of the units are different.

At lower ambient temperatures, it is easy to weaken the defrosting ability of the air source heat pump unit. Because the suction of the unit is too small, the density of the air that can be sucked is reduced. As time accumulates, the thickness of the frost layer becomes higher and higher. Therefore, the air conversion capacity of the unit will decrease, the circulation amount of refrigerant will decrease, and the overall heating capacity will decrease. The extremely cold air source heat pump adopts eight independent core technologies and operates stably at an ambient temperature of minus 50°C, with an energy efficiency ratio of 1:2.0. Using deep freezing technology combined with modern heat pump science, through precision frequency conversion capacity adjustment technology and positive temperature coefficient low-temperature data acquisition technology, plus new refrigerant deployment technology and frequency conversion capacity adjustment defrosting technology, the frequency conversion control unit and outdoor unit are designed separately. The module uses precision liquid spray cooling to achieve module stability beyond the working range, truly achieve efficient heating at minus 50°C, and produce hot water above 60°C.

3. The functional superiority of the compressor used

The split extreme cold air source heat pump uses a high-pressure ratio cryogenic dedicated compressor when the outdoor temperature is -50°C and the condensing temperature is 65°C. It can still operate stably under a large compression ratio and will not shut down due to overheating of the air source host.

4. Energy efficiency superiority

The heating efficiency of the split extreme cold air source heat pump is 30% to 50% higher than that of conventional heat pumps at low ambient temperatures. The comprehensive energy efficiency ratio at -45°C is around 2.0. The machine can still operate normally at -50°C ambient temperature. It is more energy-saving than conventional heat pumps when used at low ambient temperatures.

1. Split extreme cold variable frequency heat pump adopts a complete set of cryogenic technology solutions combined with high-temperature heat pump technology, and the lower limit of the use environment can reach -48°C;

2. The electronic control adopts a precision constant temperature system to ensure stable and trouble-free operation of the electronic control system under extremely cold ambient temperature conditions;

3. Use patented environmentally friendly medical refrigerant, which is safe, efficient and low-carbon.

4. Use high-speed defrost technology to effectively solve the problem that conventional air energy cannot defrost normally under extremely cold conditions;

5. Use aviation-grade temperature collection probes to ensure the accuracy of the entire temperature system collection, thereby ensuring the machine's efficient heat output.

6. The core main control electronic components are separated from the outdoor unit, allowing the electronic components to run in a safe working environment, with more stable performance, better use effects, and higher energy efficiency.

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