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Anhui Lanzhong Mechanical and Electrical Equipment Co., Ltd.
WhatsApp: +86-138-6598-5643
Contact person: Alex Wang
Email: alexwang@watermist.com.cn
Address: Room 101-Room 401, Building B8, Gongtou Lingang New Industrial Park, No.21 Science Avenue, Shou County, Huainan city, Anhui Province, China
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What is the difference between nozzle applications such as hollow cone and solid cone?
There are many types of fire extinguishing nozzles, including solid spray nozzles, hollow spray nozzles, fan-shaped spray nozzles, etc. The difference in spray methods is mainly due to the different fuel distribution on the cross-section of the vertical spray cone. The fine atomization nozzle factory will explain what is the difference in fuel distribution on the cross section of the spray cone: it is mainly due to the different structural measures taken between the swirl cone and the nozzle hole: some are equipped with an orifice plate of different structural sizes (including swirl chamber and nozzle) at the outlet end of the swirl cone; some are different sizes of the concave circular holes at the outlet end of the swirl cone. The specific structural dimensions are difficult to determine through theoretical calculations and can only be determined through repeated trials. In addition, the spray mode also changes with the flow rate (or oil pressure). When the flow rate increases, the hollowness of the spray cone also increases. In short, by changing the relationship between the tangential direction of the fuel entering the swirl chamber and the radial velocity, different spray modes can be achieved. Generally speaking, the flame of hollow spray is short and the flame of solid spray is long. However, the nozzle styles used in different situations are different, which are also related to ignition, combustion noise and pollution performance. Let’s take a look at their applications:
1. Solid spray nozzle 1. Solid spray nozzle
Solid spray means that fuel or other working fluids are evenly distributed on the cross-section of the spray cone. Generally, the particle size of solid spray is relatively coarse. In order to reduce the particle size, air or steam can be used to assist atomization.
There are two types:
1) A simple direct injection nozzle, its injection cone angle is very small (less than 15), and even approximates a straight injection. It has a long range and a powerful impact. It is also widely used in combustion equipment. It is also used in non-combustion equipment, such as cleaning equipment, spraying, cooling, lubrication, fire prevention and other industries.
2) Swirl blades are installed in the nozzle housing. The spray cone angle can be 50° to 120°, and the impact is small. It is widely used in non-combustion equipment and can also be used for cleaning, cooling, fire prevention, humidification, dust prevention, etc.
Solid cone nozzle square standard angle
2. Hollow spray nozzle
A small average particle size can be obtained. When the spray pressure, spray flow rate and angle are the same, the surface area of the workpiece can be increased and the workpiece can be processed more delicately, which will have a greater impact on the movement of materials. Among the various spray methods listed above, it is the one with strict requirements on spray quality (especially used in aviation and ground gas turbine combustion chambers).
In addition to being widely used in industrial furnaces, boilers, internal combustion engines, gas turbines and other combustion equipment, this type of nozzle is also widely used in non-combustion equipment. Hollow spray nozzles can produce good results in gas cooling, air humidification, metal processing, dust control, gas cleaning and chemical reactions. They are widely used in equipment in many industries such as powder preparation and spraying.
Hollow spray nozzles can also use air or steam to assist atomization.
3. Fan spray nozzle
Fan-shaped spray can be produced by spraying the working fluid through multiple small holes or multi-tube rakes in the nozzle clamp; it can also be formed by the working fluid spraying through a round hole to impact the exit curved surface or through a long circular hole cross-section nozzle, and then through the V-shaped slit outside the nozzle.
Its impact is second only to the direct nozzle with a small spray angle. It can use one or more rows of drainage (cleaning liquid) curtains arranged at a certain distance to clean large quantities of crushed gravel, workpieces, and fruits and vegetables arranged at a certain distance in a streamlined manner. It can also use the jet of cold (hot) air flow to cool, dry, and wash parts. The application range is also very wide.
Of course, the prices of these types are also different, so I can choose a cost-effective nozzle based on its function, price, service life and other aspects.
1. Solid spray nozzle 1. Solid spray nozzle
Solid spray means that fuel or other working fluids are evenly distributed on the cross-section of the spray cone. Generally, the particle size of solid spray is relatively coarse. In order to reduce the particle size, air or steam can be used to assist atomization.
There are two types:
1) A simple direct injection nozzle, its injection cone angle is very small (less than 15), and even approximates a straight injection. It has a long range and a powerful impact. It is also widely used in combustion equipment. It is also used in non-combustion equipment, such as cleaning equipment, spraying, cooling, lubrication, fire prevention and other industries.
2) Swirl blades are installed in the nozzle housing. The spray cone angle can be 50° to 120°, and the impact is small. It is widely used in non-combustion equipment and can also be used for cleaning, cooling, fire prevention, humidification, dust prevention, etc.
Solid cone nozzle square standard angle
A small average particle size can be obtained. When the spray pressure, spray flow rate and angle are the same, the surface area of the workpiece can be increased and the workpiece can be processed more delicately, which will have a greater impact on the movement of materials. Among the various spray methods listed above, it is the one with strict requirements on spray quality (especially used in aviation and ground gas turbine combustion chambers).
In addition to being widely used in industrial furnaces, boilers, internal combustion engines, gas turbines and other combustion equipment, this type of nozzle is also widely used in non-combustion equipment. Hollow spray nozzles can produce good results in gas cooling, air humidification, metal processing, dust control, gas cleaning and chemical reactions. They are widely used in equipment in many industries such as powder preparation and spraying.
Hollow spray nozzles can also use air or steam to assist atomization.
Fan-shaped spray can be produced by spraying the working fluid through multiple small holes or multi-tube rakes in the nozzle clamp; it can also be formed by the working fluid spraying through a round hole to impact the exit curved surface or through a long circular hole cross-section nozzle, and then through the V-shaped slit outside the nozzle.
Its impact is second only to the direct nozzle with a small spray angle. It can use one or more rows of drainage (cleaning liquid) curtains arranged at a certain distance to clean large quantities of crushed gravel, workpieces, and fruits and vegetables arranged at a certain distance in a streamlined manner. It can also use the jet of cold (hot) air flow to cool, dry, and wash parts. The application range is also very wide.
