主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (8): 1205-1209.

• • 上一篇    下一篇

气动击发环式灭火炮的设计与试验

刘九庆，姚 凯   

  1. 东北林业大学 机电工程学院，黑龙江 哈尔滨 150040
  • 出版日期:2021-08-15 发布日期:2021-03-15
  • 通讯作者: 姚 凯（1996-），男，东北林业大学机电工程学院硕士研究生。
  • 作者简介:刘九庆(1971-)，男，黑龙江哈尔滨人，东北林业大学机电工程学院教授，博士生导师，主要从事林业机械化研究，黑龙江省哈尔滨市香坊区和兴路26号，150040。

Design and test of pneumatic firing ring type fire cannon

LIU Jiu-qing，YAO Kai   

  1. College of Mechanical and Electrical Engineering, Northeast Forestry University, Heilongjiang Harbin 150040, China

  • Online:2021-08-15 Published:2021-03-15

摘要：

为了解决采用高压气动灭火炮对气体阀质量要求过高且不易改变发射气压的问题，首先，设计了一种新型以高压气体为动力的灭火弹发射系统，此系统采用内炮筒带动击发环发射方式。然后，通过建立发射时的动力学模型并研究不同发射阶段的气压变化特性，列出其不同发射阶段灭火弹的轨迹方程。最后，分析出击发环角度与其对外炮筒压力的关系，得出了击发环的最优参数。实验结果印证了分析结果，同时表明：当仰角为40°、气压为1.6 MPa时射程最大为102.34 m，消防炮误差率可以控制在1.0%～3.6%。此灭火炮总体结构设计合理，为同类森林灭火装置提供了参考。

关键词:

"> 机械设计, 灭火炮, 击发环, 灭火弹射程

Abstract:

In order to solve the problem of fire cannon powered by high pressure gas, namely the quality of gas valve is too high and it is not easy to change the firing pressure. First of all, this paper designs a new type of fire bomb firing system with high pressure gas as power. This system uses the firing ring driven by the inner barrel. Then, by establishing the dynamic model and studying the characteristics of air pressure in different launch stages, the trajectory equations of fire extinguishing projectile in different launch stages are listed. Finally, the relationship between the angle of firing ring and the pressure of external barrel is analyzed, and the optimal parameters of firing ring are obtained. The experimental results confirm the analysis results, and show that the maximum range is 102.34 m when the elevation angle is 40° and the air pressure is 1.6 MPa, and the error rate of fire cannon can be controlled between 1.0% and 3.6%. The overall structure design of the fire cannon is reasonable, which provides a reference for similar forest cannon extinguishing devices.


 

Key words: machine design, fire cannon, hit ring, range of fire extinguisher