WO2018214709A1 - 一种非储压式自动灭火系统及其灭火方法 - Google Patents

一种非储压式自动灭火系统及其灭火方法 Download PDF

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Publication number
WO2018214709A1
WO2018214709A1 PCT/CN2018/085254 CN2018085254W WO2018214709A1 WO 2018214709 A1 WO2018214709 A1 WO 2018214709A1 CN 2018085254 W CN2018085254 W CN 2018085254W WO 2018214709 A1 WO2018214709 A1 WO 2018214709A1
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fire extinguishing
controller
piston
alarm
gas generator
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PCT/CN2018/085254
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English (en)
French (fr)
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冯伟光
石兵纯
程友丽
贾磊磊
张永长
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安徽泽泰安全技术有限公司
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Publication of WO2018214709A1 publication Critical patent/WO2018214709A1/zh

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C27/00—Fire-fighting land vehicles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion

Definitions

  • the invention belongs to the technical field of vehicle fire protection, and relates to an automatic fire extinguishing system, in particular to a non-pressure accumulating automatic fire extinguishing system and a fire extinguishing method thereof.
  • the fire protection system will become the standard product of new energy vehicles.
  • the traditional domestic fire extinguishing system is mainly composed of dry powder, aerosol and carbon dioxide as fire extinguishing agents. Because of its poor fire extinguishing effect, unable to prevent re-ignition, pollution to the environment, etc., it cannot meet the fire fighting work of new energy vehicles; It is impossible to subdivide the individual battery packs to extinguish the fire alone; it cannot communicate with the onboard computer and cannot monitor in real time.
  • the new energy vehicles have a small installation space, a large number of battery packs and scattered distribution, high voltage of the vehicle system, and excessive interference sources, which may cause interference to the control system. Therefore, a new fire suppression system is needed to solve the above problems.
  • the object of the present invention is to provide a non-pressure accumulating automatic fire extinguishing system and a fire extinguishing method thereof.
  • the utility model relates to a non-pressure accumulating automatic fire extinguishing system, which comprises a tank body, a piston, a medicament, a gas generator, a controller, an in-vehicle management system and a fire extinguishing pipeline;
  • the tank body has an upper end cover installed at one end and the other end is installed a lower end cover;
  • a piston is disposed in the tank body;
  • a cover plate is installed in the tank body between the piston and the lower end cover, and a through hole is formed in the plate body of the cover plate;
  • the cavity body is installed between the cover plate and the lower end cover a gas generator;
  • a tank body between the piston and the upper end cap contains a medicament;
  • the gas generator is connected to the controller;
  • the controller is respectively connected with an alarm and an in-vehicle management system;
  • One end is sealed through the upper end cap and communicates with the interior of the can body.
  • the gas generator is coupled to the controller by a control line that seals through the lower end cap; the controller is coupled to the alarm via a probe line; the controller is coupled to the in-vehicle management system via a CAN bus.
  • the alarm includes a smoke alarm, a temperature alarm, and a gas alarm.
  • a fire extinguishing method for a non-pressure accumulating automatic fire extinguishing system comprising the following steps:
  • Fire detection through the alarm, the temperature, smoke and gas composition around the battery box are fed back to the controller for judgment and analysis in real time; the controller outputs current to the gas generator, and the gas generator is detonated to generate a chemical reaction, and The gas is produced to push the piston to move; the gas pushes the piston to push all the medicaments in the tank into the pre-arranged fire extinguishing pipeline to perform the fire extinguishing work.
  • the invention has the following advantages: 1.
  • the can body of the invention has small volume, good sealing performance, convenient installation and installation, and does not need external air source to push, and the system can generate gas as a power source by itself;
  • the invention can be installed in two battery cases, and can be fired according to different temperatures to prevent re-ignition; the system can be connected with a plurality of detectors for work, which is safer and more reliable; each tank is an independent system. It is convenient to carry out sub-package control of individual battery packs to separate fire extinguishing.
  • FIG. 1 is a schematic view showing the overall structure of a non-pressure accumulating automatic fire extinguishing system according to the present invention
  • FIG. 2 is a schematic view showing the arrangement of a non-pressure accumulating automatic fire extinguishing system of the present invention
  • Figure 3 is a circuit diagram of the input end of the controller of the present invention.
  • Figure 4 is a circuit diagram of the output of the controller of the present invention.
  • a non-pressure accumulating automatic fire extinguishing system see Fig. 1-2, including upper end cover 1, lower end cover 2, tank body 3, cover plate 4, piston 5, medicament 6, gas generator 7, controller 8, smoke alarm 9, the temperature alarm 10, the gas alarm 11, the vehicle management system 12, the fire extinguishing pipeline 13;
  • the upper end cover 1 is attached to one end of the can body 3, and the lower end cover 2 is attached to the other end; the piston 5 is movably disposed in the can body 3; the cover 4 is mounted in the can body between the piston 5 and the lower end cover 2.
  • the plate body of the cover plate 4 is provided with a through hole; a gas generator 7 is mounted in the cavity between the cover plate 4 and the lower end cover 2; the tank body between the piston 5 and the upper end cover 1 contains the medicament 6;
  • the gas generator 7 is connected to the controller 8 by a control line that seals through the lower end cover 2; the controller 8 is connected to the smoke alarm 9, the temperature alarm 10, and the gas alarm 11 through a detection line; the controller 8 is connected to the CAN bus via the CAN bus Vehicle management system 12 (or BMS system 12);
  • One end of the fire extinguishing pipe 13 is sealed through the upper end cover 1 and communicates with the inside of the can body 3;
  • the can body 3 is connected with the upper end cover 1 and the lower end cover 2 by screwing; the cover plate 4 and the lower end cover 2 are screwed; the plate body of the cover plate 4 is provided with a through hole (or a vent hole) , for the gas generator 7 to produce gas to push the piston 5, and the gas generated by the gas generator is placed at the bottom of the piston;
  • Pharmacy 6 uses water-based special fire extinguishing agent, which has the characteristics of environmental protection, no corrosion, automatic decomposition, anti-reburning, 3.6KV high voltage non-conductivity, etc.; there is a layer of blasting membrane between the agent 6 and the upper end cover 1, which can seal the tank body. Liquid, when the piston pushes the liquid, the liquid directly breaks through the diaphragm and enters the fire extinguishing pipeline;
  • the controller 8 has an input end and an output end, wherein each serial port of the input end is connected with an alarm, and the output end is connected with the gas generator 7; the controller can be directly installed on the bottom of the tank body through a screw connection. And the tank is composed of a complete whole;
  • the BMS system and the vehicle management system are independent systems of the host manufacturer, and their underlying communication protocols are all CAN protocols, and the controller can communicate with them.
  • the invention provides a power source by the gas generator 7, firstly detecting the fire by the temperature alarm 10, the gas alarm 11, and the smoke alarm 9, and feeding back the temperature, smoke, gas composition and the like around the battery box to the controller 8 in real time. Judging and analyzing; then, the controller 8 outputs a current to the gas generator 7, the gas generator 7 is detonated to generate a chemical reaction, and the gas is produced to push the piston 5 to move; finally, the medicament 6 in the can body 3 is fully pushed out to The fire extinguishing work is performed in the pre-arranged fire extinguishing pipe 13.
  • the first way is to arrange a circle of temperature sensing cable (temperature alarm 10) inside the battery pack, and connect a 1.8K ohm resistor at the end of the cable; if the temperature is too high, the cable skin is burned out, causing the cable to be short-circuited. At this time, the cable resistance is zero, and the system determines that a fire has occurred. At this time, the system outputs 1.5A of current to the power source. The signal is filtered before entering the controller.
  • the second signal input is the smoke sensor signal (smoke alarm 9), and the smoke sensor is used to detect the fire signal to the controller. At this point, the system outputs 1.5A current to the power source. The signal is filtered before entering the controller.
  • the third signal input is a photodetection sensor signal (gas alarm 11), and the photoelectric signal is used to detect the fire signal to the controller. At this point, the system outputs 1.5A current to the power source. The signal is filtered before entering the controller.
  • the output signal is one way; in the three inputs, as long as any one of the signals is input to the controller, a 1.5A current signal is generated. Filter processing before signal output.
  • the system information can be communicated through the CAN bus and the BMS system (or the vehicle management system), and it can detect whether the three input signals are connected normally. At the same time, it can detect whether the system is triggered or not.
  • the input signal at the time of triggering is the sensor signal of that one.
  • the BMS system can be triggered by a reverse remote control system via the CAN bus to perform fire fighting operations.
  • the tank body is small in size, good in sealing performance, and convenient for installation;
  • Two independent systems can be installed in one battery box, which can be fired according to different temperatures to prevent re-ignition;
  • the system can be connected to a variety of detectors for work such as: smoke detection, temperature detection, photodetection, etc., which is safer and more reliable;
  • Each tank is an independent system with functions of detection, eruption, fire extinguishing, feedback, etc.; it is convenient to carry out sub-package control of individual battery packs to separate fire extinguishing;
  • the controller can directly communicate and control with BMS system, vehicle management system, etc. It can also use the vehicle system and equipment to realize fire detection, fire extinguishing, sound and light alarm, status detection and other functions.
  • the specific working principle of the present invention is: the power source is provided by the gas generator 7, firstly, the temperature alarm 10, the gas alarm 11, the smoke alarm 9 is used for fire detection, and the temperature, smoke, gas composition, etc. around the battery box are taken. Real-time feedback to the controller 8 for judgment and analysis; then the controller 8 outputs current to the gas generator 7, the gas generator 7 is detonated to generate a chemical reaction, and the gas is produced to push the piston 5 to move; finally, the tank 3 is inside The medicaments 6 are all pushed out into the pre-arranged fire extinguishing line 13 for the fire fighting operation.

Abstract

一种非储压式自动灭火系统及其灭火方法，包括罐体（3）、活塞（5）、药剂（6）、气体发生器（7）、控制器（8）、车载管理系统（12）、灭火管路（13）；所述罐体（3）的一端部安装有上端盖（1），另一端部安装有下端盖（2）；所述罐体（3）内活动设有活塞（5）；所述活塞（5）与下端盖（2）之间的罐体内安装有盖板（4），盖板（4）的板体上开设有通孔；盖板（4）与下端盖之间的腔体内安装有气体发生器（7）；所述活塞（5）与上端盖（1）之间的罐体内容纳有药剂（6）；所述气体发生器（7）与控制器（8）连接；所述控制器（8）分别连接有报警器（9、10、11）与车载管理系统（12）；所述灭火管路（13）的一端密封贯穿上端盖（1）并与罐体内部连通。该灭火系统密封性能良好，方便配套安装，不需要外部气源推动，安全可靠。

Description

一种非储压式自动灭火系统及其灭火方法 技术领域
本发明属于车辆消防技术领域，涉及一种自动灭火系统，具体涉及一种非储压式自动灭火系统及其灭火方法。
背景技术
随着我国新能源汽车行业的快速发展，车辆消防安全也变得越来越重要。特别是针对客车电池仓内的消防系统已有越来越多的客车企业开始重视，未来“车辆消防系统”将成为新能源车辆的标配产品。目前国内传统的灭火系统主要是由干粉、气溶胶和二氧化碳等介质作为灭火药剂，由于其灭火效果差、无法阻止复燃、对环境有污染等，无法满足新能源车辆的灭火工作；在灭火时无法对单个电池包进行分包控制单独灭火；无法和车载电脑进行通讯，没法做到实时监控。而新能源车辆存在安装空间狭小、电池包数量多且分布散乱、车辆系统电压高、干扰源过多容易对控制系统造成干扰等现象。因此，需要一款新的灭火系统来解决以上问题。
发明内容
本发明的目的在于提供一种非储压式自动灭火系统及其灭火方法。
本发明的目的可以通过以下技术方案实现：
一种非储压式自动灭火系统，包括罐体、活塞、药剂、气体发生器、控制器、车载管理系统、灭火管路；所述罐体的一端部安装有上端盖，另一端部安装有下端盖；所述罐体内活动设有活塞；所述活塞与下端盖之间的罐体内安装有盖板，盖板的板体上开设有通孔；盖板与下端盖之间的腔体内安装有气体发生器；所述活塞与上端盖之间的罐体内容纳有药剂；所述气体发生器与控制器连接；所述控制器分别连接有报警器与车载管理系统；所述灭火管路的一端密封贯穿上端盖并与罐体内部连通。
所述气体发生器通过密封贯穿下端盖的控制线连接至控制器；所述控制 器通过探测线连接有报警器；所述控制器通过CAN总线连接至车载管理系统。
所述报警器包括烟雾报警器、温度报警器、气体报警器。
一种非储压式自动灭火系统的灭火方法，该灭火方法包括下述步骤：
通过报警器进行火灾探测，把电池箱周围的温度、烟雾、气体成分情况实时反馈给控制器进行判断和分析；由控制器来输出电流给气体发生器，气体发生器被起爆产生化学反应，并生产气体来推动活塞运动；气体推动活塞把罐体内的药剂全部推出到预先布置好的灭火管路内，进行喷射灭火工作。
本发明的有益效果：1、本发明罐体体积小，密封性能良好，方便配套安装，不需要外部气源推动，系统可自己产生气体作为动力源；
2、本发明可在一个电池箱体内可安装两套，根据不同温度进行喷发灭火防止复燃；系统可连接多种探测器进行工作，更加安全可靠；每个罐体都是一个独立的系统，方便进行单个电池包进行分包控制单独灭火。
附图说明
为了便于本领域技术人员理解，下面结合附图对本发明作进一步的说明。
图1为本发明一种非储压式自动灭火系统整体结构示意图；
图2为本发明一种非储压式自动灭火系统的布置示意图；
图3为本发明控制器输入端电路图；
图4为本发明控制器输出端电路图。
本发明的较佳实施方式
下面将结合实施例对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
一种非储压式自动灭火系统，参见图1-2，包括上端盖1、下端盖2、罐体3、盖板4、活塞5、药剂6、气体发生器7、控制器8、烟雾报警器9、温度报警器10、气体报警器11、车载管理系统12、灭火管路13；
具体地，罐体3的一端部安装有上端盖1，另一端部安装有下端盖2；罐体3内活动设有活塞5；活塞5与下端盖2之间的罐体内安装有盖板4，盖板4的板体上开设有通孔；盖板4与下端盖2之间的腔体内安装有气体发生器7；活塞5与上端盖1之间的罐体内容纳有药剂6；
气体发生器7通过密封贯穿下端盖2的控制线连接至控制器8；控制器8通过探测线连接有烟雾报警器9、温度报警器10、气体报警器11；控制器8通过CAN总线连接至车载管理系统12(或BMS系统12)；
灭火管路13的一端密封贯穿上端盖1并与罐体3内部连通；
进一步地，罐体3与上端盖1、下端盖2之间均是通过螺纹连接；盖板4与下端盖2通过螺纹连接；盖板4的板体上是开设有通孔(或放气孔)，以供气体发生器7生产气体推动活塞5，把气体发生器产生的气体放入活塞底部用；
药剂6采用水基型专用灭火剂，具有环保无腐蚀、可自动分解、防复燃、3.6KV高压不导电等特点；药剂6与上端盖1之间设有一层爆破膜片，可以密封罐体内的液体，活塞推动液体时，液体直接冲破膜片进入灭火管路；
参见图3、图4，控制器8具有输入端与输出端，其中，输入端的各个串口与报警器连接，输出端与气体发生器7连接；控制器可直接通过螺纹连接安装在罐体底部，和罐体组成完整的一个整体；
BMS系统与车载管理系统是主机厂家的独立系统，它们的底层通讯协议都是CAN协议，控制器可以和它们进行通讯。
本发明由气体发生器7提供动力源，首先由温度报警器10、气体报警器11、烟雾报警器9进行火灾探测，把电池箱周围的温度、烟雾、气体成分等情况实时反馈给控制器8进行判断和分析；然后由控制器8来输出电流给气体发生器7，气体发生器7被起爆产生化学反应，并生产气体来推动活塞5运动；最终把罐体3内的药剂6全部推出到预先布置好的灭火管路13内，进 行喷射灭火工作。
本发明控制工作说明：
1.第一路在电池包内部会排布一圈感温线缆(温度报警器10)，在线缆末端连接1.8K欧电阻；如果温度过高烧坏线缆表皮，造成线缆短路，此时线缆电阻为零，系统判断有火灾发生，此时系统输出1.5A的电流给动力源。信号进入控制器前进行滤波处理。
2.第二路信号输入为烟雾传感器信号(烟雾报警器9)，通过烟雾传感器来探测火灾信号到控制器。此时系统输出1.5A电流给动力源。信号进入控制器前进行滤波处理。
3.第三路信号输入为光电探测传感器信号(气体报警器11)，通过光电传感器来探测火灾信号到控制器。此时系统输出1.5A电流给动力源。信号进入控制器前进行滤波处理。
4.输出信号为一路；在三路输入中，只要任有一路信号输入到控制器则触发产生1.5A电流信号。信号输出前进行滤波处理。
5.预留CAN通讯接口和232串口；
6.系统信息可通过CAN总线和BMS系统(或车载管理系统)进行通讯，可检测到三路输入信号连接是否正常。同时能检测系统是否触发，触发时的输入信号为那一路传感器信号。BMS系统可通过CAN总线进行反向遥控系统触发进行灭火作业。
本发明具有如下特点：
1)罐体体积小，密封性能良好，方便配套安装；
2)启动压力小，不需要外部气源推动，系统可自己产生气体作为动力源；
3)一个电池箱体内可安装两套独立的系统，可根据不同温度进行喷发灭火防止复燃；
4)系统可连接多种探测器进行工作如：烟雾探测、温度探测、光电探测 等，更加安全可靠；
5)每个罐体都是一个独立的系统，具备检测、喷发、灭火、反馈等功能；方便进行单个电池包进行分包控制单独灭火；
6)控制器可直接和BMS系统、车载管理系统等进行通讯和控制，也可利用车载系统和设备来实现火灾的探测、灭火、声光报警、状态检测等功能。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施方式。显然，根据本说明书的内容，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。
工业实用性
本发明的具体工作原理是：由气体发生器7提供动力源，首先由温度报警器10、气体报警器11、烟雾报警器9进行火灾探测，把电池箱周围的温度、烟雾、气体成分等情况实时反馈给控制器8进行判断和分析；然后由控制器8来输出电流给气体发生器7，气体发生器7被起爆产生化学反应，并生产气体来推动活塞5运动；最终把罐体3内的药剂6全部推出到预先布置好的灭火管路13内，进行喷射灭火工作。

Claims (4)

  1. 一种非储压式自动灭火系统，其特征在于，包括罐体、活塞、药剂、气体发生器、控制器、车载管理系统、灭火管路；
    所述罐体的一端部安装有上端盖，另一端部安装有下端盖；所述罐体内活动设有活塞；
    所述活塞与下端盖之间的罐体内安装有盖板，盖板的板体上开设有通孔；盖板与下端盖之间的腔体内安装有气体发生器；
    所述活塞与上端盖之间的罐体内容纳有药剂；
    所述气体发生器与控制器连接；所述控制器分别连接有报警器与车载管理系统；
    所述灭火管路的一端密封贯穿上端盖并与罐体内部连通。
  2. 根据权利要求1所述的一种非储压式自动灭火系统，其特征在于，所述气体发生器通过密封贯穿下端盖的控制线连接至控制器；所述控制器通过探测线连接有报警器；所述控制器通过CAN总线连接至车载管理系统。
  3. 根据权利要求2所述的一种非储压式自动灭火系统，其特征在于，所述报警器包括烟雾报警器、温度报警器、气体报警器。
  4. 一种非储压式自动灭火系统的灭火方法，其特征在于，该灭火方法包括下述步骤：
    通过报警器进行火灾探测，把电池箱周围的温度、烟雾、气体成分情况实时反馈给控制器进行判断和分析；
    由控制器来输出电流给气体发生器，气体发生器被起爆产生化学反应，并生产气体来推动活塞运动；
    气体推动活塞把罐体内的药剂全部推出到预先布置好的灭火管路内，进行喷射灭火工作。
PCT/CN2018/085254 2017-05-24 2018-05-02 一种非储压式自动灭火系统及其灭火方法 WO2018214709A1 (zh)

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CN109529226A (zh) * 2018-11-22 2019-03-29 安徽中科中涣防务装备技术有限公司 一种柱塞式灭火降温装置
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