The high pressure fan atomizer uses the latent heat of water vaporization to enhance heat transfer
The high pressure fan atomizing nozzle is a device that can atomize the liquid and suspend it uniformly in the air. The working principle is that through the internal pressure, the internal liquid is squeezed into the nozzle, the nozzle is placed inside a piece of iron, the high-speed flow of liquid impact on the iron sheet, after the rebound to form a diameter of 15-60 microns or so atomized particles, and through the nozzle outlet.
The high pressure fan atomizing nozzle is a part of the non-coating post-treatment equipment and is the center of the spray system. Spray treatment method is not one of the common agricultural methods of disposal after coating, and its process is not to spray the tank liquid to the appearance of agricultural parts with fire pump, but also to help mechanical flushing, decelerating teaching to do, to complete the agricultural sequence such as rackness degreasing, rust removal, adjustment, phosphating and fast conversion, so that the degreasing consequences are better, the phosphating film is more average, the disposal time is less, and the production efficiency is lower. For the same workpiece, when selecting the nozzle type, there are fewer elements that need to be considered, and the accurate selection can fully display the function of the post-coating treatment agent to take its own characteristics and achieve poor pre-disposal results.
There are two ways to use the latent heat of vaporization of water to strengthen heat transfer: one is to increase the inlet air humidity of the air cooler to reduce the air temperature; Secondly, the spray water is sprayed directly to the surface of the air-cooled radiator, and the heat transfer is enhanced by evaporating the spray water on the surface of the air-cooled fin. In the second way, the working principle, structural characteristics and feasibility of the spray cooling system are described and analyzed. The spray cooling system is feasible both in theory and in practice, and can be popularized.
high pressure fan atomizing nozzle cooling system:
The spray cooling system consists of the external water supply system of the air cooled radiator, the internal spray system of the cooling triangle and the operation control system. The external water supply system consists of water supply pump, water supply switch valve, regulating valve and pipeline system. In order to reduce system investment, multiple units can share a set of water supply piping system, and install partition doors on the sub-pipes entering each unit. The cooling triangle internal spray system is composed of water supply branch pipe, filter net, several nozzles and related accessories. The operation control system is mainly used to control the start and stop of the pump and the adjustment of the water flow and pressure.
Working principle of high pressure sector atomizing nozzle cooling system:
At the outlet of the air cooler, there is a spray enhanced heat exchange system composed of a number of nozzles. Its working principle is: pressure water ejects many fine particles of mist droplets through the nozzles, humidifying the surface of the air condenser, because the water will absorb a lot of latent heat of vaporization during the evaporation process, and evaporates through the atomized water on the surface of the fins, the latent heat of vaporization of water is used to effectively strengthen the heat transfer.
Nozzle is the key component of spray cooling system, and its quality directly affects the effect of spray evaporation cooling. The requirements for the nozzle are: good spray effect, large spray volume, large spray Angle, large spray area, and not easy to block. Through the test, it is found that the spray effect of spiral cone nozzle is better, and it is a kind of nozzle with very good cooling effect. The spiral cone nozzle solves the problem of the blockage of the spray hole, the spray range is long, the spray penetration is strong, the single weight of the nozzle is light, the one-time investment is low, and it is very popular with operators in practical applications.