News

Home page

全部分类

Water source heat pump application effect affects how to improve efficiency

Release Time：2021-07-21

The water source heat pump unit is divided into two parts: internal unit and external unit. The internal unit structure is similar to that of concealed direct cooling fan coil. The main structure of external unit includes compressor, water side heat exchanger, four-way valve and other parts. It is called "external unit". In fact, it is generally installed indoors. The compressor, condenser and other parts are separated from the air supply coil. On the one hand, the unit size is reduced, easy to hide installation, save space and improve the flexibility, fully cooperate with the decoration design for installation. On the other hand, it reduces the indoor noise. The external machine can be installed in the corridor, toilet, kitchen ceiling, balcony and other positions to avoid noise affecting the indoor.
In the current operation process of water source heat pump system, the arch cooling function of water source heat pump in summer is relatively perfect, but its heating function in winter still has the problems of small temperature difference, large flow rate and relatively low water temperature. The reason why such problems occur is mainly due to the low temperature of groundwater in winter and the imperfect performance of water source heat pump units, and if these problems can not be improved, it will inevitably affect the promotion of water source heat pump system, so at this stage must increase research efforts, so that the water source heat pump system toward the temperature difference is large, the flow is small, and the temperature of the water is high.
The temperature of the water source water source heat pump is an important factor affecting the water source heat pump, the same unit, due to the different water temperature of the cold and heat is also different, generally speaking, the water source heat pump on the water source temperature requirements range is: cooling conditions, into the evaporator water temperature is 10~22 ℃, heating conditions, into the condenser water temperature is 18~40 ℃.
The water source heat pump is the cooling and heating mode with the highest energy efficiency ratio in the air conditioning system at present. The theoretical calculation can reach 7, and the actual operation is 4~6. The available water temperature of the water source heat pump unit is 12~22 ℃ in winter, and the water temperature is higher than the ambient air temperature, so the evaporation temperature of the heat pump cycle increases, and the energy efficiency ratio also improves the water source heat pump, while the water temperature is 18~35 ℃ in summer, the water temperature is lower than the ambient air temperature, so the condensation temperature of the refrigeration is reduced, making the cooling effect better than the air-cooled and cooling tower type, thereby improving the operating efficiency of the unit.
The compressor of water source heat pump has low noise, long service life and reliable operation. It uses high-efficiency homogeneous rheological temperature difference shell-and-tube heat exchanger with small volume and high heat exchange efficiency. The inside of the double-tube water heat exchanger passes through spiral high-efficiency internal threaded copper tube, which has high heat exchange efficiency and low water quality requirements. The air-cooled heat exchange fins made of hydrophilic aluminum foil make defrosting more uniform and thorough. Stainless steel or advanced sprayed plastic sheet metal can be selected, which has stronger corrosion resistance.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong, the hometown of FRP in China. The company has Grade II qualification for fire protection facilities engineering, Grade II qualification for construction mechanical and electrical installation engineering, Grade II qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, and an axial fan invention patent, A fan utility model patent, environmental assessment, safety assessment, three simultaneous and other procedures are complete.