Main types and principles of rotary atomizing nozzles
1. Rotary atomizing nozzle
The atomization mechanism of the rotary atomizing nozzle has been described above, but there are several types of specific structures, and the respective application fields are also different. The general shape is divided into two types: a rotating body type and a rotary nozzle type, and the rotating body shape includes a cup type and a rotary plate type (or a rotary disk type), which form a liquid film on the surface of the rotating body, from the periphery of the rotating body. Produce a droplet of mist. In the case of the rotary spout, a plurality of spouts are formed in the rotating body, and the liquid is ejected from the spout in a columnar shape (also in the form of a mist cone), and the aerodynamic force generated by the surrounding air atomizes the liquid.
Regardless of the rotary nozzles, they atomize the fluid by means of centrifugal force and aerodynamic forces. Therefore, some books are called centrifugal type, such as centrifugal (disc, sputum) atomizer. Rotary cup nozzles are used in large quantities in industrial furnaces and boiler burners (or burners); they are also used in non-combustion equipment such as rotating cup electrostatic spray guns.
The rotary nozzle is mainly used in spray drying equipment. The domestic centrifugal sprayer has stereotyped products, such as N603 and N604. The rotary atomizer on the spray drying device has various structural forms, such as butterfly smooth disc, multi-tube disc (N603, N604 belong to this type), multi-leaf disc, multi-layer disc (also with nozzle) )Wait. The disc atomizer is a nebulizer that has both liquid membrane atomization and liquid column atomization principles. They rotate at a speed of 3000-20000r/rnin, the peripheral speed of the disc is 60-170m/s, and the liquid that can be processed is several liters to tens of thousands of kilometers per hour. Different liquids can obtain different droplets on different atomizers. Size, from a few microns to hundreds of microns. Rotary nozzles are also used on disc-type electrostatic spray guns.
A typical construction of a rotary spray nozzle is a centrifugal oil pan used on a baffled combustion chamber of a small gas turbine. The fuel is supplied to the center of the hollow compressor-turbine shaft, and a holed disc ejects the oil bundle to the combustion chamber head for atomization combustion. The rotating disk speed is generally 20000~6000r/min, and the fuel atomization quality is very good. Centrifugal oil-based baffled combustion chamber is the leading product of Turbomeca, France, and has been applied to more than 10 small engines.
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1. Rotary atomizing nozzle
The atomization mechanism of the rotary atomizing nozzle has been described above, but there are several types of specific structures, and the respective application fields are also different. The general shape is divided into two types: a rotating body type and a rotary nozzle type, and the rotating body shape includes a cup type and a rotary plate type (or a rotary disk type), which form a liquid film on the surface of the rotating body, from the periphery of the rotating body. Produce a droplet of mist. In the case of the rotary spout, a plurality of spouts are formed in the rotating body, and the liquid is ejected from the spout in a columnar shape (also in the form of a mist cone), and the aerodynamic force generated by the surrounding air atomizes the liquid.
Regardless of the rotary nozzles, they atomize the fluid by means of centrifugal force and aerodynamic forces. Therefore, some books are called centrifugal type, such as centrifugal (disc, sputum) atomizer. Rotary cup nozzles are used in large quantities in industrial furnaces and boiler burners (or burners); they are also used in non-combustion equipment such as rotating cup electrostatic spray guns.
The rotary nozzle is mainly used in spray drying equipment. The domestic centrifugal sprayer has stereotyped products, such as N603 and N604. The rotary atomizer on the spray drying device has various structural forms, such as butterfly smooth disc, multi-tube disc (N603, N604 belong to this type), multi-leaf disc, multi-layer disc (also with nozzle) )Wait. The disc atomizer is a nebulizer that has both liquid membrane atomization and liquid column atomization principles. They rotate at a speed of 3000-20000r/rnin, the peripheral speed of the disc is 60-170m/s, and the liquid that can be processed is several liters to tens of thousands of kilometers per hour. Different liquids can obtain different droplets on different atomizers. Size, from a few microns to hundreds of microns. Rotary nozzles are also used on disc-type electrostatic spray guns.
A typical construction of a rotary spray nozzle is a centrifugal oil pan used on a baffled combustion chamber of a small gas turbine. The fuel is supplied to the center of the hollow compressor-turbine shaft, and a holed disc ejects the oil bundle to the combustion chamber head for atomization combustion. The rotating disk speed is generally 20000~6000r/min, and the fuel atomization quality is very good. Centrifugal oil-based baffled combustion chamber is the leading product of Turbomeca, France, and has been applied to more than 10 small engines.
This article is transferred to Xinyanbao Trading Co., Ltd.: (http://)
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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