Air Source Heat Pump Central Heating Project With Radiator Heating
System
Project Introduction
Location: Hebeiprovince
Building area: 20000M2
System design: ultra low temperature air source heat pump+radiator
Quantity of air-source heat pump: 13 set
The project is located in Hebei Province, with a heating area of
about 20,000 m2. The project is a non-energy-saving building and
distributed in the mountains. The climate is very harsh. The air
source heat pump is used to replace the coal-fired boiler heating.
Due to the vast area, the economy, construction schedule and
heating effect are combined. The project adopts distributed heat
pump central heating mode, and designs 10 heat stations in total.
The office building area is the largest heat station. 13 sets of
air-source heat pump Model SDNA-075Y are connected in parallel for
intelligent control. It is officially put into use in 2017 to
achieve indoor heating. In the entire heating season,the indoor
temperature reach customers' requirements, the machine is stable,
reliable and efficient operation, according to the average coal
burned by the users, the air source heat pump heating systems can
save about 434 tons of raw coal, reduce SO2 by about 7.4 tons,
reduce CO2 by about 46 tons, and reduce ash and slag emissions by
about 130 Ton per year.
Air source heat pump in this project Parameter
| Model | SDNA-075Ycode name.pdf |
| Compressor capacity | 25HP |
| Function | Heat |
| Electricity | 380V 3N-50Hz |
| Working conditions | ℃ | -25~+45 |
| Data | Heata | Nominal capacity | KW | 44.5 |
| Input power | KW | 18.3 |
| COP | / | 2.4 |
| Heating IPLV(H) | 2.7 |
| A7W35c | KW/COP | 75.0/4.2 |
| A2W35 | KW/COP | 62.5/3.20 |
| A-7W35 | KW/COP | 52.5/3.0 |
| A-15W55 | KW/COP | 45.5 /1.97 |
| A-20W45 | KW/COP | 37.4/2.04 |
| Max. running currency | A | 56 |
| Compressor quantity | set | 2 |
| Refrigerant/charging quantity kg | / | R22/10*2 |
| Air blow type | / | Top |
| Water pipe diameter | mm | 50 |
| Rating flow | m³/h | 12.6 |
| Water side pressure loss | kPa | ≤45 |
| Noise level | dB(A) | 62 |
| Overall dimensions(L×W×H) | mm | 2100×1100×2080 |
| Weight | kg | 730 |
a: Nominal heating conditions: ambient dry bulb temperature-12℃,
wet bulb temperature-14℃, outlet water temperature 41℃, water flow
0.172 * nominal heating capacity
A7W35 working condition: inlet air temperature 7℃, outlet water
temperature 35℃
Yushen Products Advantages
- Environmental-friendly, even in -25C can work in high COP
- Fan of heat exchanger is big diameter Jagged type, which increase
the air flow tangent length when air going through fans, reduce
noise; When the air volume is increased, the heat exchanger is more
evenly.
- Multi- Multi-throttle channel design is accurate.
Multiple energy-saving devices in a single system, precise control
of refrigerant flow, enabling the unit to maximize heat/cooling
capacity and maximum energy efficiency in various working
environments, reducing operating costs
- The water side shell and tube heat exchanger has high efficiency
and reliability.
The industry's leading refrigerant distribution technology can
effectively improve the uniformity of gas-liquid two-phase fluid
distribution into heat transfer tubes, improve the utilization of
heat exchange tubes, and achieve efficient heat transfer.
- Large-area hydrophilic aluminum heat exchangers increase the heat
production.
The four-row tube V-shaped arrangement has high heat exchange
efficiency and uniform wind speed distribution.
It adopts 9.52*0.35 internal thread high-efficiency heat exchange
copper tube and 3.1mm large-format hydrophilic aluminum fins with
better hydrophobicity; it improves the operating efficiency during
frosting and reduces the number of defrosting.
The optimized long flow path design and wide expansion of the
expansion throttle ensure uniform distribution of refrigerant in
low temperature environments. Ensure even frosting, complete
defrosting, strong heating and efficient operation
