车载高喷多剂联用喷射灭火装置 Vehicle high-spray multi-agent combined fire extinguishing device
技术领域： Technical field:
本发明涉及一种车载高喷多剂联用喷射灭火装置。 The invention relates to a vehicle-mounted high-spray multi-agent combined fire extinguishing device.
背景技术： Background technique:
目前在高层建筑或大型石油化工、 煤化工生产及储存装置等火灾中， 一般采用高喷消 防车灭火， 而传统高喷消防车只能喷射水或水与泡沫混合液， 其存在的弊端是： 首先， 灭 火方式单一， 灭火剂适用火灾类型范围较窄， 难以应对不同类型的火灾； 其次， 灭火剂的 抗复燃效果不理想， 往往在明火被扑灭后还存在复燃的隐患。 At present, in high-rise buildings or large-scale petrochemical, coal chemical production and storage devices, fires are generally used in high-spray fire engines. Traditional high-pressure fire engines can only spray water or a mixture of water and foam. The disadvantages are: First of all, the fire extinguishing method is single, the fire extinguishing agent is applicable to a narrow range of fire types, and it is difficult to cope with different types of fires. Secondly, the anti-reburning effect of the fire extinguishing agent is not ideal, and there is a hidden danger of re-ignition after the open flame is extinguished.
发明内容： Summary of the invention:
为克服现有技术的缺陷， 本发明的目的在于提供一种即可单独喷射一种灭火剂， 又可 同时喷射两种或两种以上灭火剂组合的车载高喷多剂联用灭火装置， 满足不同火灾类型对 灭火战术的需求， 改变传统高喷消防车的灭火功能。 In order to overcome the defects of the prior art, the object of the present invention is to provide a vehicle-mounted high-spray multi-agent fire extinguishing device capable of separately spraying one fire extinguishing agent and simultaneously spraying two or more fire extinguishing agent combinations. The need for fire-fighting tactics for different types of fires changes the fire-fighting function of traditional high-spray fire engines.
本发明解决技术问题采用如下技术方案： The technical solution of the present invention adopts the following technical solutions:
车载高喷多剂联用喷射灭火装置， 以消防车为载体固设有转台架， 在所述转台架上转 动设置有回转台， 所述回转台由驱动装置驱动在所述转台架上转动； 举升臂架的末端铰接 在所述回转台上由液压油缸驱动举升， 在举升臂架的前端设置有喷射炮设置中心回转体， 所述中心回转体的转动部分与所述回转台固联，中心回转体的固定部分与所述转台架固联； 所述中心回转体的转动部分具有并列设置的外输出管及内输出管， 所述外输出管和内 输出管各自通过臂架上的管路与所述喷射炮连通； A vehicle-mounted high-spray multi-agent combined fire-extinguishing device is provided with a turret fixed by a fire-fighting vehicle, and a turret is arranged on the turret, and the turret is driven by the driving device on the turret Rotating upward; the end of the lifting boom is hinged on the rotating table and driven by a hydraulic cylinder, and a spray gun is disposed at a front end of the lifting boom to set a central rotating body, and the rotating portion of the central rotating body is The rotating table is fixed, and the fixed portion of the central rotating body is fixedly coupled with the rotating table; the rotating portion of the central rotating body has an outer output tube and an inner output tube arranged in parallel, and the outer output tube and the inner output tube are respectively Communicating with the spray gun through a pipeline on the boom;
所述中心回转体的固定部分具有并列设置的分别与所述外输出管及内输出管连通的外 输入管和内输入管； The fixed portion of the central slewing body has an outer input tube and an inner input tube which are arranged in parallel and communicate with the outer output tube and the inner output tube respectively;
所述消防车中设有多种灭火剂储罐， 各灭火剂储罐通过多条输送管路与所述外输入管 和内输入管连通供送灭火剂， 所述多条输送管路中设有多个控制阀用于控制管路的通断。 The fire truck is provided with a plurality of fire extinguishing agent storage tanks, and each fire extinguishing agent storage tank is connected with the outer input pipe and the inner input pipe through a plurality of conveying pipelines for supplying fire extinguishing agent, wherein the plurality of conveying pipelines are provided There are multiple control valves for controlling the continuity of the lines.
所述中心回转体的转动部分包括外输出管、 同轴设置在所述外输出管内腔中的内输出 管以及固联于外输出管外部的回转阀体； 所述中心回转体的固定部分包括套接在所述内输 出管外部的内输入管、 对应套接在所述外输出管外部的外输入管， 所述内输出管与内输入 管的管壁之间、 以及所述外输出管与所述外输入管的管壁之间均设置有密封圈。 The rotating portion of the central rotating body includes an outer output tube, an inner output tube coaxially disposed in the inner cavity of the outer output tube, and a rotary valve body fixed to the outside of the outer output tube; the fixed portion of the central rotating body includes An inner input tube sleeved outside the inner output tube, an outer input tube correspondingly sleeved outside the outer output tube, a wall between the inner output tube and the inner input tube, and the outer output tube A sealing ring is disposed between the tube wall of the outer input tube.
在所述外输出管的下部沿管外壁圆周方向设置有环状卡槽， 设置嵌入在所述环状卡槽 内的卡环， 所述卡环与所述外输入管的端部法兰固联。 An annular card slot is disposed along a circumferential direction of the outer wall of the outer tube, and a snap ring embedded in the annular card slot is disposed, and the end of the snap ring and the outer input tube are flanged. Union.
在所述回转阔体的外部套接有与所述转台架固联的固定套， 并在所述固定套与回转阀 体之间设有密封圈； 导电滑环的转动件固联在所述回转阀体上， 导电滑环的固定件固联在
所述转台架上， 在所述回转阀体内设有用于穿设导线的防水管。 a fixing sleeve fixed to the rotating frame is sleeved on the outer portion of the rotating wide body, and a sealing ring is arranged between the fixed sleeve and the rotating valve body; the rotating member of the conductive sliding ring is fixedly attached On the rotary valve body, the fixing member of the conductive slip ring is fixed at On the turntable, a waterproof tube for threading a wire is disposed in the rotary valve body.
所述灭火剂储罐包括水储罐、 预混液储罐以及干粉储罐： The fire extinguishing agent storage tank includes a water storage tank, a premixed liquid storage tank, and a dry powder storage tank:
所述水储罐通过水管路与车载消防泵连接， 并在水管路中设有 A控制阀， 所述消防泵 经一条管路与所述中心回转体的外输入管连通， 消防泵经另一条管路与消防车器材箱内的 喷射枪连通； 在消防泵与外输入管之间的管路上设有 B控制阀， 在消防泵与喷射枪之间的 管路上设有 C控制阔； The water storage tank is connected to the vehicle fire pump through the water pipeline, and the A control valve is arranged in the water pipeline, the fire pump is connected to the external input pipe of the central rotating body via one pipeline, and the fire pump is passed through another The pipeline is connected with the spray gun in the fire truck equipment box; a B control valve is arranged on the pipeline between the fire pump and the external input pipe, and a C control is provided on the pipeline between the fire pump and the spray gun;
在所述水管路上并联有比例混合器， 所述预混液储罐经预混液管路与所述比例混合器 连通， 并在所述预混液管路上设有 D控制阀； a proportional mixer is connected in parallel on the water pipe, the premixed liquid storage tank is connected to the proportional mixer through a premixed liquid pipeline, and a D control valve is disposed on the premixed liquid pipeline;
所述干粉储罐出口经干粉管路与所述中心回转体的内输入管连通， 并在所述干粉管路 上设有 E控制阀， 在所述内输入管管路上设有 F控制阀， 所述干粉管路还通过下输送管与 所述喷射枪连通， 并在所述下管路上设有 G控制阀； The dry powder storage tank outlet is connected to the inner input pipe of the central rotating body via a dry powder pipeline, and an E control valve is arranged on the dry powder pipeline, and an F control valve is arranged on the inner inlet pipeline. The dry powder pipeline is further connected to the spray gun through a lower conveying pipe, and a G control valve is arranged on the lower pipeline;
所述干粉储罐的入口经气管路与气瓶组连通， 并在所述气管路上设置有减压阀及 H控 制阀。 The inlet of the dry powder storage tank is connected to the cylinder group via a gas pipeline, and a pressure reducing valve and a H control valve are disposed on the gas pipeline.
所述比例混合器上还连通有外供水管路， 并在所述外供水管路上设有 J控制阀； 所述 中心回转体的内输送管以及所述下输送管并列与干粉外供管连通， 并在所述干粉外供管上 设有 K控制阀。 The proportional mixer is further connected with an external water supply pipeline, and a J control valve is arranged on the outer water supply pipeline; the inner conveying pipe of the central rotating body and the lower conveying pipe are juxtaposed with the dry powder external supply pipe. And a K control valve is arranged on the dry powder supply pipe.
本发明的工作原理： 通过对输送系统的控制， 水进入消防泵获取喷射动力， 预混液按 比例吸入比例混合器与水混合。 气瓶组内的高压氮气经减压阀进入干粉罐， 使千粉获取喷 射动力。 水、 预混液与干粉可通过对输送系统中控制阀的控制， 进行单独调控按需获取喷 射动力， 进入喷射系统， 喷射系统既可单独喷射一种灭火剂， 又可同时喷射两种及两种以 上灭火剂组合。 从而实现了车载高喷多剂联用灭火装置既可单独喷射一种灭火剂， 也可同 时喷射两种或两种以上灭火剂组合的功能。 The working principle of the invention: Through the control of the conveying system, the water enters the fire pump to obtain the injection power, and the premixed liquid is mixed with the water in proportion to the proportional mixing mixer. The high-pressure nitrogen gas in the gas cylinder group enters the dry powder tank through the pressure reducing valve, so that the powder can obtain the injection power. Water, premixed liquid and dry powder can be controlled by the control valve in the conveying system, and can be separately controlled to obtain the injection power and enter the injection system. The injection system can spray two kinds of fire extinguishing agent separately, and can spray two or two at the same time. The above fire extinguishing agent combination. Therefore, the vehicle-mounted high-spray multi-agent fire extinguishing device can be sprayed with one fire extinguishing agent alone or with two or more fire extinguishing agent combinations at the same time.
与已有技术相比， 本发明的有益效果体现在： Compared with the prior art, the beneficial effects of the present invention are embodied in:
1、 实现了可单独喷射一种灭火剂， 也可同时喷射两种或两种以上灭火剂组合。 改变 了传统高喷消防车的灭火功能， 满足了不同火灾类型对灭火战术的需求。 本发明集车载、 灭火于一体， 不仅具有广谱灭火作用， 而且具有灭火剂用量少， 灭火速度快， 灭火后抗复 燃效果好及环保等多项优势。 1. It is realized that one fire extinguishing agent can be sprayed separately, or two or more fire extinguishing agent combinations can be sprayed at the same time. The fire-fighting function of the traditional high-spray fire truck has been changed to meet the demand for fire-fighting tactics of different fire types. The invention integrates the vehicle and the fire extinguishing into one, not only has the broad-spectrum fire-extinguishing effect, but also has many advantages such as less fire extinguishing agent dosage, fast fire extinguishing speed, good anti-reburning effect after fire extinguishing and environmental protection.
2、 利用流体力学的射流附壁作用， 可将新型、 高效、 抗复燃预混液与水混合后同步 抵达燃烧表面， 水有强力的冷却作用， 炽热的燃烧表面将水气化， 形成的水蒸气不仅具有 很大的潜热量， 而且可大幅度降低可燃气体在燃烧区内的百分比浓度； 同时， 微胞囊灭火 剂具有强力的冷却作用， 可快速降温， 有利于灭火。 因此具有灭火剂用量少， 灭火速度快，
灭火后抗复燃效果好以及环保等优势。 2. Using the hydrodynamic fluid-attached wall effect, the new, high-efficiency, anti-reburning premixed liquid can be mixed with water and then arrive at the combustion surface synchronously. The water has a strong cooling effect, and the hot burning surface vaporizes the water, forming water. The steam not only has a large potential heat, but also can greatly reduce the percentage concentration of the combustible gas in the combustion zone; at the same time, the microcyst extinguishant has a strong cooling effect, can quickly cool down, and is beneficial to fire extinguishing. Therefore, the amount of fire extinguishing agent is small, and the fire extinguishing speed is fast. After fire extinguishing, it has good anti-reburning effect and environmental protection advantages.
3、 以高速水流为载体， 可同时将水及按比例的新型、 高效、 抗复燃预混液从比例混 合器中吸入， 配以憎水型超细干粉从臂架顶部的喷射炮或车箱内的喷射枪进行中远距离的 喷射， 直达燃烧区。 由于喷出的灭火剂为多剂组合式， 所以它兼具多种灭火剂的优点， 是 目前任何单一一种灭火剂所不能比拟的， 是真正意义上的卤代烷替代技术。 不仅具有灭火 剂用量少， 灭火速度快， 灭火后抗复燃效果好以及环保等优势， 而且具有全方位、 广谱灭 火效应， 可扑灭 A、 B、 C、 D、 E 、 F类火灾. 大大提高了灭火性能。 3. With high-speed water flow as carrier, water and proportional new, high-efficiency and anti-reburning premixed liquid can be sucked from the proportional mixer at the same time, with water-type ultra-fine dry powder from the spray gun or the inside of the frame at the top of the boom. The spray gun performs medium to long range jets and reaches the combustion zone. Because the fire extinguishing agent is a multi-agent combination, it has the advantages of multiple fire extinguishing agents, which is unmatched by any single fire extinguishing agent. It is a true halogenated alkane replacement technology. It not only has the advantages of low dosage of fire extinguishing agent, fast fire extinguishing, good anti-reburning effect after fire extinguishing and environmental protection, but also has all-round and broad-spectrum fire extinguishing effect, which can extinguish A, B, C, D, E and F fires. Greatly improved fire performance.
4、 粒径不大于 15 y m的千粉称为超细干粉， 以 "气 -粉"射流的方式将超细干粉灭 火剂射出， 形成冷气溶胶灭火剂射流。 冷气溶胶的密度与空气接近， 具有可压缩性、 流动 性、弥散性等气体灭火剂的典型特点，在高层建筑中，可快速弥漫至室内有限空间产生"全 淹没"的灭火效果， 使火焰在极短时间内熄灭； 可代替补充气流进入隧道、 古建筑等复杂 空间内将其中的大火扑灭。 以惰化浓度将冷气溶胶灭火剂射入泄漏出的可燃性气体中时， 可以抑制爆燃爆轰的发生。 4. The powder with a particle size of not more than 15 y m is called ultra-fine dry powder. The ultra-fine dry powder extinguishing agent is sprayed by the "gas-powder" jet to form a cold aerosol fire extinguishing agent jet. The density of cold aerosol is close to that of air. It has the typical characteristics of gas fire extinguishing agent such as compressibility, fluidity and dispersion. In high-rise buildings, it can quickly diffuse into the limited space of the room to produce a "full flooding" fire extinguishing effect. It is extinguished in a very short time; it can be used to replace the supplementary airflow into the complex space such as tunnels and ancient buildings to extinguish the fire. When the cold aerosol fire extinguishing agent is injected into the leaked flammable gas at an inerting concentration, the occurrence of deflagration detonation can be suppressed.
5、 超细干粉灭火后几乎无散落物， 少量沾附在炽热表面， 成玻璃状覆盖层极易清除。 附图说明： 5. After the ultra-fine dry powder is extinguished, there is almost no scattered material, and a small amount of it adheres to the hot surface, and the glass coating layer is easy to remove. BRIEF DESCRIPTION OF THE DRAWINGS:
图 1为本发明的整体结构示意图； 图 2为灭火剂输送系统的简洁结构示意图； 图 3为 本发明中心回转体、 转台架及回转体的连接结构示意图； 图 4为中心回转体的示意图。 1 is a schematic view of the overall structure of the present invention; FIG. 2 is a schematic view showing the structure of the fire extinguishing agent conveying system; FIG. 3 is a schematic view showing the connecting structure of the center rotating body, the rotating table and the rotating body of the present invention; .
图中标号： 1转台架， 2回转台， 3中心回转体， 4喷射炮， 5回转支撑， 6内输出管， 7外输出管， 9内输入管， 10回转阀体， 11导电滑环， 12固定套， 13卡环， 14密封圈， 15防水管， 16水储罐， 17预混液储罐， 18干粉储罐， 19消防泵， 20为 Α控制阀， 21喷 射枪， 22为 B控制阀， 23为 C控制阀， 24比例混合器， 25为 D控制闽， 26为 E控制阀， 27为 F控制阀， 28下输送管， 29为 G控制阀， 30气瓶组， 31为 H控制阀， 32为 J控制 阀， 33为 K控制阀。 Numbers in the figure: 1 turntable, 2 turntable, 3 center swing body, 4 spray guns, 5 swing support, 6 inner output tubes, 7 outer output tubes, 9 inner input tubes, 10 rotary valve bodies, 11 conductive slip rings , 12 sets, 13 snap rings, 14 seals, 15 waterproof pipes, 16 water storage tanks, 17 premixed liquid storage tanks, 18 dry powder storage tanks, 19 fire pumps, 20 for Α control valves, 21 for spray guns, 22 for B Control valve, 23 is C control valve, 24 proportional mixer, 25 is D control 闽, 26 is E control valve, 27 is F control valve, 28 is delivery pipe, 29 is G control valve, 30 cylinder group, 31 is H control valve, 32 is J control valve, 33 is K control valve.
以下通过具体实施方式， 并结合附图对本发明作进一步说明。 The invention will be further described below by way of specific embodiments with reference to the accompanying drawings.
具体实施方式： detailed description:
实施例： 结合图 1、 3、 4, 以消防车为载体固设有转台架 1， 在转台架 1上转动设置有 回转台 2， 回转台通过回转支撑 5转动架设在转台架上并由液压马达驱动可在转台架 1上 转动； 举升臂架的末端铰接在回转台 2上由液压油缸驱动举升， 在举升臂架的前端设置有 喷射炮 4， 设置中心回转体 3， 该中心回转体的转动部分与回转台 2固联， 中心回转体的固 定部分与转台架 1固联。 Embodiment: With reference to Figures 1, 3 and 4, a turntable 1 is fixed by a fire truck as a carrier, and a turntable 2 is arranged on the turntable 1 to rotate. The turntable is rotatably mounted on the turntable by a swing support 5 The hydraulic motor is driven to rotate on the turntable 1; the end of the lift boom is hinged on the turntable 2 and driven by the hydraulic cylinder, and the spray gun 4 is disposed at the front end of the lift boom to set the center swing body 3. The rotating portion of the center rotary body is fixed to the turntable 2, and the fixed portion of the center swing body is fixed to the turntable 1.
图 4所示， 中心回转体 3的转动部分包括外输出管 7、 同轴设置在外输出管内腔中的
内输出管 6以及固联于外输出管外部的回转阀体 10; 其中， 外输出管 7和内输出管 6各自 通过臂架上的管路与喷射炮连通， 为喷射炮提供灭火剂。 As shown in FIG. 4, the rotating portion of the center-turning body 3 includes an outer output pipe 7 coaxially disposed in the inner cavity of the outer output pipe. The inner output tube 6 and the rotary valve body 10 fixed to the outside of the outer output tube; wherein, the outer output tube 7 and the inner output tube 6 are respectively communicated with the spray gun through a pipeline on the boom to provide a fire extinguishing agent for the spray gun.
中心回转体 3的固定部分包括套接在内输出管 6外部的内输入管 9、 对应套接在外输 出管 7外部的外输入管 8， 并且， 在内输出管 6与内输入管 15的管壁之间、 以及外输出管 7与外输入管 8的管壁之间均设置有密封圈 14。 The fixed portion of the center swing body 3 includes an inner input tube 9 that is sleeved outside the inner output tube 6, an outer input tube 8 that is sleeved outside the outer output tube 7, and a tube that is inside the inner tube 6 and the inner input tube 15. A seal ring 14 is disposed between the walls and between the outer output tube 7 and the tube wall of the outer input tube 8.
在消防车中设有多种灭火剂储罐， 各灭火剂储罐通过多条输送管路与外输入管 8和内 输入管 9连通供送灭火剂， 在多条输送管路中各自设有控制阀用于控制管路的通断。 There are a plurality of fire extinguishing agent storage tanks in the fire truck, and each fire extinguishing agent storage tank is connected with the external input pipe 8 and the inner input pipe 9 through a plurality of conveying pipes to supply the fire extinguishing agent, and each of the plurality of conveying pipes is provided in the plurality of conveying pipes. The control valve is used to control the continuity of the pipeline.
参见图 4， 在外输出管 7的下部沿管外壁圆周方向设置有环状卡槽， 设置嵌入在环状 卡槽内的卡环 13， 卡环 13与外输入管 8的端部法兰固联， 卡环与法兰连接对外输出管 7 与外输入管 8之间进行轴向限位。 Referring to FIG. 4, an annular card slot is disposed in the lower portion of the outer tube 7 in the circumferential direction of the outer wall of the tube, and a snap ring 13 embedded in the annular card slot is provided, and the snap ring 13 is fixed to the end flange of the outer input tube 8. The snap ring and the flange are axially constrained between the outer output tube 7 and the outer input tube 8.
图 4所示， 在回转阀体 10的外部套接有与转台架固联的固定套 12, 并在固定套与回 转阀体之间设有密封圈； 导电滑环 11的转动件固联在回转阀体 10上， 导电滑环的固定件 固联在转台架 1上， 使用导电滑环实现固定电器线路与旋转电器线路之间通电， 并在导电 滑环外设有防尘罩， 在回转阀体 10内设有防水管 15用于穿设导线。 As shown in FIG. 4, a fixing sleeve 12 fixed to the turntable is sleeved on the outside of the rotary valve body 10, and a sealing ring is arranged between the fixed sleeve and the rotary valve body; the rotating member of the conductive slip ring 11 is fixed On the rotary valve body 10, the fixing member of the conductive slip ring is fixed on the turntable frame 1, and the conductive slip ring is used to electrically connect the fixed electrical circuit and the rotating electrical circuit, and a dust cover is arranged outside the conductive slip ring. A waterproof tube 15 is provided in the rotary valve body 10 for threading the wires.
中心回转体装置可将具有发射动力的不同灭火剂通过下部的外输入管 8、 内输入管 9 分别输送至上部外输出管 7、 内输出管 6， 实现多剂联用中心回转体既可输送一种灭火剂， 又可同时输送两种及两种以上灭火剂组合。 The central slewing device can transport different fire extinguishing agents with launching power to the upper outer output pipe 7 and the inner output pipe 6 through the lower outer input pipe 8 and the inner input pipe 9, respectively, so that the multi-agent central rotating body can be transported. An extinguishing agent can simultaneously deliver two or more fire extinguishing agent combinations.
图 2所示， 消防车中的灭火剂储罐包括水储罐 16、 预混液储罐 17以及干粉储罐 18 ; 输送管路的连接如图 2所示，水储罐通过水管路与车载消防泵 19连接，并在水管路中设有 A控制阀 20， 消防泵输出端经一条管路与中心回转体 3的外输入管 8连通， 消防泵出口端 经另一条管路与消防车器材箱内的喷射枪 21连通;在消防泵与外输入管之间的管路上设有 B控制阀 22, 在消防泵与喷射枪之间的管路上设有 C控制阀 23。若仅开启 A控制阀 20和 B控制阀 22, 则采用水这一种灭火剂从喷射炮 4射出， 仅幵启 A控制阀 20和 C控制阀 23 则采用器材箱内的喷射枪 21灭火。 As shown in Fig. 2, the fire extinguishing agent storage tank in the fire truck includes a water storage tank 16, a premixed liquid storage tank 17, and a dry powder storage tank 18; the connection of the conveying pipeline is as shown in Fig. 2, and the water storage tank passes through the water pipeline and the vehicle fire protection The pump 19 is connected, and an A control valve 20 is arranged in the water pipeline. The output end of the fire pump is connected to the external input pipe 8 of the central rotary body 3 via a pipeline, and the outlet end of the fire pump passes another pipeline and a fire truck equipment box. The inside of the spray gun 21 is connected; a B control valve 22 is provided on the line between the fire pump and the external input pipe, and a C control valve 23 is provided on the line between the fire pump and the spray gun. If only the A control valve 20 and the B control valve 22 are opened, the fire extinguishing agent is used to eject the spray gun 4 from the spray gun 4, and only the A control valve 20 and the C control valve 23 are fired by the spray gun 21 in the equipment box.
在水管路上还并联有比例混合器 24，预混液储罐 17经预混液管路与比例混合器 24连 通， 并在预混液管路上设有 D控制阔 25; A-D控制阀的不同组合可选择水、 预混液或其组 合自喷射炮或喷射枪中喷射出灭火。在比例混合器 24上还连通有外供水管路，并在外供水 管路上设有 J控制阀 32， 外供水管可连接到市政消防栓取水。 A proportional mixer 24 is also connected in parallel on the water pipe, and the premixed liquid storage tank 17 is connected to the proportional mixer 24 via the premixed liquid line, and has a D control width 25 on the premixed liquid line; different combinations of AD control valves can select water. The premix or combination thereof is fired from the spray gun or spray gun. An external water supply line is also connected to the proportional mixer 24, and a J control valve 32 is provided on the external water supply line, and the external water supply pipe can be connected to the municipal fire hydrant to take water.
. 图 4所示，干粉储罐 18出口经干粉管路与中心回转体的内输入管 9连通，并在干粉管 路上设有 E控制阀 26，在内输入管的延伸管路上设有 F控制阀 27，干粉管路还通过下输送 管 28与喷射枪 21连通， 并在下管路上设有 G控制阀 29 ; 干粉储罐 18的入口经气管路与
气瓶组 30连通， 并在气管路上设置有减压阀及 H控制阀 31 , 气瓶组内的高压氮气经减压 阀进入干粉罐，使干粉获取喷射动力。内输送管 9的延伸管路以及下输送管 28并列与干粉 外供管连通， 并在干粉外供管上设有 K控制阀 33 , 可由消防车外部供送干粉灭火剂。 由于 干粉储罐、 水储罐、 预混液储罐、 气输送管及各管路上的控制阀均是单独设置， 故实现了 水、 预混液、 气均可单独调控。 再加上喷射炮与喷射枪的输送管及控制阀均为单独设置， 故实现了可单独喷射一种灭火剂， 又可同时喷射两种或两种以上灭火剂组合。 可扑灭 A、 B、 C、 D、 E 、 F类火灾， 大大提高了灭火性能。
As shown in Fig. 4, the outlet of the dry powder storage tank 18 is connected to the inner input pipe 9 of the central rotary body via the dry powder pipeline, and the E control valve 26 is arranged on the dry powder pipeline, and the F control is provided on the extension pipeline of the inner input pipe. The valve 27, the dry powder pipeline is also connected to the spray gun 21 through the lower transfer pipe 28, and the G control valve 29 is provided on the lower pipeline; the inlet of the dry powder storage tank 18 is connected to the gas pipeline and The gas cylinder group 30 is connected, and a pressure reducing valve and an H control valve 31 are arranged on the gas pipeline, and the high pressure nitrogen gas in the gas cylinder group enters the dry powder tank through the pressure reducing valve, so that the dry powder obtains the injection power. The extension pipe of the inner conveying pipe 9 and the lower conveying pipe 28 are connected in parallel with the dry powder external supply pipe, and a K control valve 33 is arranged on the dry powder external supply pipe, and the dry powder fire extinguishing agent can be supplied from the outside of the fire truck. Since the dry powder storage tank, the water storage tank, the premixed liquid storage tank, the gas transmission pipe and the control valves on each pipeline are separately set, the water, the premixed liquid and the gas can be separately regulated. In addition, the delivery pipe and the control valve of the spray gun and the spray gun are separately arranged, so that it is possible to separately spray one fire extinguishing agent, and simultaneously spray two or more fire extinguishing agent combinations. It can extinguish fires of Class A, B, C, D, E and F, which greatly improves the fire extinguishing performance.