Air-cooled scroll chiller (heat pump) unit

The industry specifications are the most comprehensive and largest
The unit is based on 015, 020, 030 and 040 as basic module units. It can be freely combined according to the required capacity, has a wide energy application range and is easy to expand. The cooling capacity range is 51-1300KW

Brand-name accessories

The performance is excellent. All the main components are first-class products at home and abroad, with stable quality and reliable performance.

Compact design, an industry first

Based on the simplification of the system process, it achieves the most compact design in the industry. The floor space per unit of cooling capacity is 30-50% smaller than that of similar products in the industry. It is light in weight and small in volume, greatly saving users' precious building space.

Solid structure, made of superior materials for anti-corrosion

It is made of thick-walled high-quality galvanized steel plates that are bent and powder-coated. The strength has been verified to be 1.4 times that of ordinary units, and the anti-corrosion ability is more than twice that of ordinary units.

Patent technology of dry evaporator

The high-efficiency U-tube shell-and-tube heat exchanger is adopted, featuring uniform liquid distribution, reliable oil return, high heat exchange efficiency, stable quality and convenient maintenance.

The system is designed in a balanced way to enhance the low pressure during defrosting

The dedicated balance tank can balance the amount of refrigerant used during refrigeration and heating operations. It has only one interface, a small volume, and a small charge amount. During defrosting, it can quickly increase the system's low pressure and flow rate, achieving efficient defrosting.

Partial load function, significant energy saving

At partial load, the unit can adjust the energy output in a modular unit walking manner to keep it in the closest matching state with the load, achieving significant energy savings. Meanwhile, the unit has the functions of balancing the wear of the compressor and providing uninterrupted heating during heating defrosting.

Intelligent self-control, network communication

The setting and query of unit parameters are convenient, and the operation is simple. The entire process of operation, energy regulation and self-protection is monitored. The unit only needs to be connected to the water system and power supply to be put into use. An R485 communication interface can be selected to meet the network communication requirements.

The product quality is reliable.

Each unit is strictly tested in accordance with the inspection items stipulated by the national standards and passes the full performance test bench designed and manufactured by Hefei General Machinery Research Institute. Only when all performance indicators meet or exceed the requirements stipulated by the national standards is it allowed to leave the factory.

The standard type unit is the simplest system in the industry

The heat pump unit adopts a unique bidirectional expansion valve throttling technology, which greatly simplifies the system flow. This not only reduces system resistance and improves performance but also minimizes the risk of leakage, ensuring stable and reliable operation of the unit.

EVI low-temperature intense heating technology for low ambient temperature units

The system adopts a "gas injection and enthalpy increase" ± high-efficiency scroll compressor to achieve quasi-two-stage compression. Increase the amount of refrigerant added to overcome the problem of heat exhaustion in low-temperature operating conditions. Reduce the exhaust temperature to meet the heating requirements at an ambient temperature of -20 ° C. Regardless of the working state of the unit, the bottom of the finned heat exchanger is always the medium-temperature liquid after condensation on the air side. This not only increases the cooling capacity and efficiency during cooling but also effectively solves the problem of ice formation at the bottom of the heat exchanger during heating in northern winters, making the operation more stable.

Microchannel unit

Under the same cooling capacity, effectively enhance condensing heat exchange, with an average energy efficiency increase of more than 4%. The system's charging volume is reduced by more than 50%, achieving energy conservation and emission reduction. The heat exchange is uniform by adopting micro-pore and wind field vector simulation technology.

1、Refrigeration nominal operating conditions: Water flow rate 0.172m³/(h*kw), outlet water temperature 7°C, ambient temperature 35°C, fouling coefficient 0.086m³*°C/KW

2、After 0.172 m / 2 heating nominal working condition: chilled water (h * kw), the water temperature 41 ° C, the environment temperature (dry) : - 12 ° C, (wet) - 14 ° C

3、Practical heating conditions: Water flow rate 0.172m³/(h*kw), outlet water temperature 45°C, ambient temperature (dry bulb) : 7°C, (wet bulb) : 6°C

4、The above basic modules can be combined with each other, and the maximum number of module combinations is 10