Pulsed jet fire-fighting lance

A pulse jet and water gun technology, applied in fire rescue and other directions, can solve problems such as unsatisfactory fire extinguishing effect and spray distance, and achieve the effects of improving water gun performance, improving jet quality and reducing recoil

Inactive Publication Date: 2012-10-17
HUBEI UNIV OF AUTOMOTIVE TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current water gun generally adopts continuous jet flow, and the pressure jet flow from the high-pressure pump is continuously sprayed out through the nozzle. The flow of this jet flow is continuous, and the fire extinguishing effect and spray distance are not ideal.

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
  • Pulsed jet fire-fighting lance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Such as figure 1 As shown, the connecting piece 1, the rectifying device 2, the conical nozzle 3, the oscillation chamber 4 and the lower nozzle body 5 are sequentially installed on the same center line. Connector 1 adopts the common interface of fire hose, and the size of the interface of connector 1 remains unchanged. The diameter of the through hole of connector 1 is 56 mm. The rectification device 2 includes a pipe body 6 with an inner diameter of 60 mm. The pipe body 6 is divided into a stabilizing section and a rectifier. Between the connecting piece 1 and the rectifier is a stabilizing section 7 whose length is 1.5 to 2.5 times the diameter of the main pipe; Cone connection is adopted between them (cone angle is 1.7°); the rectifier adopts honeycomb type rectifier, including 4 to 10 steel pipes with a diameter of 10 to 25mm, the wall thickness of the steel pipes is 0.4 to 1mm, and the two ends of the steel pipes 8 are welded with the fixed plate 9, It should be ...

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

The invention provides a pulsed jet fire-fighting lance, which comprises a connecting piece, a rectifying device, a conical nozzle and a pulse nozzle hermetically and fixedly connected and communicated with one another in sequence, wherein the inlet of the rectifying device is hermetically and fixedly connected with the connecting piece; and other parts are in threaded connection and communication with one another through a sealing pipe. In the invention, the inlet end of the lance is provided with the rectifying device, so that the turbulence of jet is reduced, and the range is increased by 10-25 percent compared with the conventional lance; a continuous fluid flowing through an oscillation cavity is transformed into pulsed jet by using the special structure of the oscillation cavity without other additional auxiliary equipment; and the amplitude of outflow pressure is increased by 15-30 percent, so that the hitting dynamics and fire-fighting effect of the lance are enhanced under the condition of the same water flow, energy consumption is saved, and the performance of the fire-fighting lance is improved effectively. The pulsed jet fire-fighting lance can be widely applied to fire-fighting and cleaning systems of a fire-fighting system.

Description

technical field [0001] The invention relates to a high-efficiency energy-saving device in the fields of fire protection, cleaning and the like. The device can be widely used in the fire extinguishing and cleaning system of the fire fighting system, and it can improve the spraying distance and fire extinguishing effect of the jet stream of the fire water gun. Background technique [0002] At present, the jets of fire water guns are often divided into dense jets and scattered jets. Water guns that can spray dense jets, such as straight-line water guns and water guns with racks, and water guns that can spray scattered jets, such as spray water guns and flowering water guns. It is the water gun that acts on the water into different forms, so that the water passing through the water gun can not only achieve the purpose of quickly extinguishing the fire, but also be used to extinguish some fires that cannot be extinguished with water. The DC water gun is mainly used to spray dens...

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
IPC IPC(8): A62C31/00A62C31/02
Inventor 王红霞王欢任爱华廖振方
Owner HUBEI UNIV OF AUTOMOTIVE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap