What is an evaporator? It is a very important component of the four major parts of refrigeration. The low-temperature condensed liquid passes through the evaporator and exchanges heat with the outside air, gasifies and absorbs heat to achieve the effect of refrigeration.
Throttling is one of the four indispensable main processes in the compression refrigeration cycle. The throttling device is to reduce the pressure of the high-pressure liquid refrigerant coming out of the condenser to reach the evaporation pressure, and at the same time adjust the amount of refrigerant liquid entering the evaporator according to the change of system load. Commonly used throttling devices include manual expansion valves, float expansion valves, thermal expansion valves, flow-blocking expansion valves (capillary tubes) and electronic expansion valves. The basic principle of the throttling device is to force the high-pressure liquid refrigerant to pass through a small flow cross-section to produce a suitable local resistance loss (or loss along the way) and then the pressure drops sharply. At the same time, the throttled refrigerant becomes a low-pressure and low-temperature state, and part of the liquid refrigerant is vaporized to absorb the latent heat in the air.
The air source heat pump evaporator is mainly composed of two parts: the heating chamber and the evaporation chamber. The heating chamber provides the liquid with the heat required for evaporation, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas and liquid phases.
The evaporator is a wall-type heat exchanger with refrigerant inside and air or water outside. The evaporator performs boiling heat exchange in phase change heat exchange. The finned tubes used in heat pump units are mostly copper tube + aluminum fin structures. The aluminum fins are opened with windows or pressed into corrugated shapes to better enhance the disturbance of the air flow, and have a "rib" effect on the outside of the copper tube, which can increase the heat absorption area, so that the refrigerant in the evaporator is in a low-pressure and low-temperature state, and the usual working pressure is close to atmospheric pressure. The evaporator is also called it. It uses air
The air source heat pump evaporator (fin-tube heat exchanger) is a device that directly absorbs heat from the air with the air source. When the refrigerant flows in the copper tube of the evaporator, it absorbs the latent heat in the air and boils. However, due to the low heat transfer coefficient on the air side, in order to meet the heat transfer capacity, the heat transfer coefficient can only be increased, the heat transfer area can be increased, and the air flow rate can be increased by installing a fan without increasing the heat transfer temperature difference.
The air source heat pump evaporator is composed of a copper tube + aluminum fin structure to promote the improvement of the heat absorption coefficient and heat transfer capacity of the evaporator. When the four-way valve is opened in the defrosting condition in winter, the evaporator acts as a condenser. The manufacturing process of the air source heat pump evaporator is mature, the production is fast, and the cost is reasonable.
What is an evaporator? It is a very important component of the four major parts of refrigeration. The low-temperature condensed liquid passes through the evaporator and exchanges heat with the outside air, gasifies and absorbs heat to achieve the effect of refrigeration.
Throttling is one of the four indispensable main processes in the compression refrigeration cycle. The throttling device is to reduce the pressure of the high-pressure liquid refrigerant coming out of the condenser to reach the evaporation pressure, and at the same time adjust the amount of refrigerant liquid entering the evaporator according to the change of system load. Commonly used throttling devices include manual expansion valves, float expansion valves, thermal expansion valves, flow-blocking expansion valves (capillary tubes) and electronic expansion valves. The basic principle of the throttling device is to force the high-pressure liquid refrigerant to pass through a small flow cross-section to produce a suitable local resistance loss (or loss along the way) and then the pressure drops sharply. At the same time, the throttled refrigerant becomes a low-pressure and low-temperature state, and part of the liquid refrigerant is vaporized to absorb the latent heat in the air.
The air source heat pump evaporator is mainly composed of two parts: the heating chamber and the evaporation chamber. The heating chamber provides the liquid with the heat required for evaporation, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas and liquid phases.
The evaporator is a wall-type heat exchanger with refrigerant inside and air or water outside. The evaporator performs boiling heat exchange in phase change heat exchange. The finned tubes used in heat pump units are mostly copper tube + aluminum fin structures. The aluminum fins are opened with windows or pressed into corrugated shapes to better enhance the disturbance of the air flow, and have a "rib" effect on the outside of the copper tube, which can increase the heat absorption area, so that the refrigerant in the evaporator is in a low-pressure and low-temperature state, and the usual working pressure is close to atmospheric pressure. The evaporator is also called it. It uses air
The air source heat pump evaporator (fin-tube heat exchanger) is a device that directly absorbs heat from the air with the air source. When the refrigerant flows in the copper tube of the evaporator, it absorbs the latent heat in the air and boils. However, due to the low heat transfer coefficient on the air side, in order to meet the heat transfer capacity, the heat transfer coefficient can only be increased, the heat transfer area can be increased, and the air flow rate can be increased by installing a fan without increasing the heat transfer temperature difference.
The air source heat pump evaporator is composed of a copper tube + aluminum fin structure to promote the improvement of the heat absorption coefficient and heat transfer capacity of the evaporator. When the four-way valve is opened in the defrosting condition in winter, the evaporator acts as a condenser. The manufacturing process of the air source heat pump evaporator is mature, the production is fast, and the cost is reasonable.
