Unlock instant, AI-driven research and patent intelligence for your innovation.

Full cone spray nozzle for low pressure fire protection system

A technology of water mist nozzle and low pressure, which is applied in spraying device, spraying device, fire rescue and other directions, and can solve the problem that the nozzle is easily affected by physical collision

Active Publication Date: 2012-12-19
VID FIRE KILL
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with water mist nozzles with deflectors is that the nozzle becomes susceptible to physical impacts which can displace the position of the deflector surface to the orifice that supplies water to the deflector surface
Another issue with deflector water mist nozzles is the ability to convert the water spray into a fine droplet size spread pattern ideal for firefighting

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Full cone spray nozzle for low pressure fire protection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The invention is realized in that the reagent (water) flows through the inlet ( 2 ) into the nozzle housing with a low supply pressure of 0.5 bar to 20 bar. Here, the reagent flows through the inclined openings (4) in the swivel plate (3), which converts the reagent jet, which causes the reagent residing in the swivel chamber (8) to swirl. The friction between the reagent jet from the inclined opening (4) and the reagent jet from the central opening (7) causes the reagent jet from the central opening (7) to rotate. Reagent flows from the swivel chamber (8) through a central outlet (6) having increasing cross-sectional area allowing the reagent to swirl through the outlet. This results in a large spread area for the reagent mist spray.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A low pressure water mist nozzle for active fire protection from water supplied with supply water pressures of 0, 5 bar to 20 bars, characterized by having a separation wall (3) with multiple openings (4) of sizes 01 mm to 02, 5 mm in angles of 10 DEG to 50 DEG to the wall surfaces, which are followed by a cavity (8) having a centrally located outlet opening (6) in its end wall, which are located opposite the separation wall (3) containing multiple openings (4).

Description

technical field [0001] The present invention relates to a low pressure water mist nozzle for active fire protection, which operates at a water pressure of 0.5 bar (bar) to 20 bar on the nozzle inlet to spread a full cone water spray, of which more than 70% The amount of water is sprayed in the form of droplets with a diameter of less than 1mm. Background technique [0002] With high-pressure water mist nozzles is known a full-cone spraying water mist nozzle for fire protection, which operates at a water inlet pressure of 20 bar to 200 bar. High water pressure creates trouble for the piping system, which should be resistant to high water pressure, corrosion and cavitation from high pressure and high flow of water. This places high demands on the system pipes and pumps, which must be made of corrosion-resistant materials, making high-pressure water mist systems complex and expensive. Another problem with high pressure water mist systems is that the nozzles have small orifice...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A62C31/00B05B1/34
CPCB05B1/3421A62C31/00A62C99/0072
Inventor 卡斯滕·帕勒
Owner VID FIRE KILL