Screw type ultra-low ambient temperature air source heat pump unit - ultra-low temperature air source screw

Screw type ultra-low ambient temperature air source heat pump unit - ultra-low temperature air source screw screw type ultra-low ambient temperature air source heat pump unit - ultra-low temperature air source screw heat pump unit can provide normal heating at an ambient temperature of -30 ℃ and has higher heating efficiency than traditional ones. This unit is the latest unit launched by Nuo Leng Company for normal heating in ultra-low temperature environments, mainly used for winter heating and hot water supply in cold northern regions

Ultra low temperature air source screw heat pump unitFeatures:

1. Adopting Hanzhong LT-S-H screw heat pump compressor, truly two-stage compression, strong air supply and enthalpy increase;

2. Uniform distribution of working fluid, increasing evaporation temperature, reducing frosting and defrosting time;

3. It can operate stably at a minimum ambient temperature of -35 ℃;

4. With a large single unit heating capacity, KMAT-330 can replace a 0.5 ton steam boiler;

5. Wide range of effluent temperature: 35-70 ℃;

6. The ambient temperature is -12 ℃, the outlet temperature is 55 ℃, the IPLV (H) exceeds the national standard first level energy efficiency by 24%, and the COPh exceeds the national standard energy efficiency limit by 27%;

7. When heating at low ambient temperatures, there is no need to add electric auxiliary heating;

8. Variable frequency design not only improves HSPF, but also enables low-temperature heating;

9. Real time monitoring of unit operation status in the cloud;

10. Efficient and stable defrosting;

11. Authoritative appraisal

According to the appraisal of industry experts organized by the China Refrigeration Society, the overall technology of the Nuo Leng single machine two-stage screw ultra-low ambient temperature air source high-temperature heat pump unit has reached the international leading level.

Ultra low temperature air source screw heat pump unitto configure:

1. LT-S-H single machine two-stage screw compressor

Modular combination design: The modular design of high and low voltage stages achieves interchangeability between different high and low voltage stages. This greatly expands the types of aircraft models and enables the most suitable displacement ratio to be matched according to the actual working conditions of customers, in order to achieve the best operating performance of the unit.

High voltage unloading slider patented design: High voltage automatic unloading VI block structure. Pure mechanical structure design, no need for additional external components such as solenoid valves, simple and effective implementation of compressor light load start-up.

Excellent motor cooling channel design ensures high efficiency of the compressor while achieving reliable cooling of the motor, enabling the compressor to operate over a wide range and have stronger adaptability.

Built in economic filter, check valve, and shut-off valve to achieve reliable protection of the compressor and simplify customer system configuration.

2. Shell and tube heat exchanger

Design pressure:

The design pressure on the refrigerant side is 2.85MPa;

The design pressure on the water side is 1.0MPa;

3. Efficient finned coil heat exchanger

V-shaped finned coil structure, more reasonable airflow layout, uniform wind speed distribution, and improved space utilization;

The coil heat exchange design is suitable for ambient temperatures ranging from -35 ℃ to 21 ℃, operates well, and is not prone to frosting;

High quality hydrophilic aluminum foil fins are processed with imported precision punching machines for secondary flanging and corrugated heat transfer enhancement. The surface is coated with a transparent hydrophilic film layer, which can delay frosting and dripping speed;

4. Fan and accompanying motor

Adopting high-efficiency axial flow fans, corrosion-resistant, and carefully designed blade shapes to meet the special air volume and pressure requirements of ultra-low ambient temperature air source heat pump units, and undergoing strict dynamic and static balance checks, it has high efficiency, low vibration, and low noise;

The fan motor adopts an outdoor dedicated motor;

Waterproof, rust proof, weather resistant design, capable of operating normally in ambient temperatures ranging from -35 to 45 ℃;

F-class insulation and F-class process, high temperature resistant design;

Imported high-quality bearings, no need to add lubricating oil, improve service life;

Protection level IP54

5. Unit control system

Advanced microcomputer control system

Adopting a programmable logic controller (PLC) specifically designed for imported air conditioning equipment, it has the ability to resist electromagnetic interference,

Intelligent coupling of building load and unit heating;

It has functions such as startup, operation, shutdown, setting, display, fault alarm, and diagnosis.

The operation status of the Chinese display host can meet different water outlet temperature requirements.