First, the product profile
Efficient energy-saving fluorine pump supply system is the use of the pump's mechanical role, to the evaporator transport low-temperature refrigerant liquid refrigeration system. After the throttling of the low-temperature refrigerant liquid, first into a certain storage volume and a certain gas-liquid separation volume of low-pressure cycle barrel, and then a few times the amount of evaporation of the fluorine pump to the low-temperature liquid transported to the warehouse evaporator to go. Part of the liquid in the evaporator heat absorption vaporization, the rest of the liquid with the steam through the return pipe back to the low pressure cycle barrel. After gas-liquid separation, the vapor is sucked by the refrigeration compressor, separated from the liquid and the equivalent of the amount of new liquid added to the liquid, but also by the fluorine pump to the evaporator for recycling.
Second, the product features
1, the evaporator has a high evaporation heat transfer efficiency, cooling effect is good. The amount of refrigerant circulating several times the evaporation of the evaporator so that the evaporator has a sufficient wetting surface, you can play all the evaporation area of the evaporator heat transfer efficiency; refrigerant in the evaporator was circulating flow state, the gas flow in the central part , Thus strengthening the refrigerant and pipe wall of the heat transfer conditions; Moreover, due to a large number of refrigerant erosion, the evaporator wall is not easy to form oil film, the bottom is not easy to accumulate oil, so that the wall heat transfer coefficient can be improved. Therefore, the same evaporation area of the evaporator, fluorine pump for the cooling effect than the direct expansion of liquid supply increased by 25% to about 30%.
2, to ensure long distance from the liquid. The use of the pump's mechanical role, you can overcome some of the system resistance loss, to achieve long-distance liquid.
3, the system is simple and reliable, easy to control and achieve centralized control, refrigeration compressor operating conditions can be improved. Fluorine pump for the liquid cooling system, the heat load in the Treasury without large fluctuations, the liquid level of the liquid tank is more stable, you can maintain the normal operation of the fluorine pump, without the need for regular adjustment work, while achieving refrigeration automation easy.
4, hot defrost operation is simple. Fluorine pump for the liquid cooling device, the defrost when the evaporator in the remaining liquid directly discharged to the low pressure cycle poke, defrosting open the fluorine pump to restore the evaporator for the liquid, restore the normal library temperature fast, Simple. The above defrost method using other cooling room cooling heat source for the defrost room to provide heat, economic energy (compared to electric heat defrosting more than 80%).
Bucket pump for liquid and expansion of liquid supply comparison
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Pump supply
Inflated for liquid
Application scope
Large and medium - sized refrigeration systems
Small refrigeration system
advantage
☆ Because the pump delivery capacity, the cycle several times the amount of evaporation, so the evaporator heat transfer efficiency
☆ The circulating drum has a large enough gas-liquid separation volume, which can avoid the wet stroke of the compressor
☆ use of the mechanical role of the pump, you can overcome some of the system resistance loss, to achieve long-distance supply, even for the liquid
☆ easy to operate, easy to focus on control
☆ high flow rate of refrigerant, flow, easy to eliminate the accumulation of oil in the evaporator, is conducive to heat transfer
☆ easy to achieve automatic control of the pump circuit
☆ system is simple
☆ low cost
☆ Refrigerant charge is small
Disadvantages
☆ refrigerant charge a large amount
☆ pump power consumption
☆ system complex
☆ high cost
☆ system cooling efficiency is low
☆ system load changes easily lead to compressor liquid hit
☆ supply distance is shorter
☆ evaporator easy to set the oil, especially the drainage system