氣體滅火系統常見構件及其作用！
來源：http://m.xintli.net/ 日期：2022-09-22
氣體滅火系統一般由瓶組、選擇閥、噴頭、單向閥、集流管、連接管、泄放裝置、驅動裝置、檢漏裝置、信號反饋裝置、低泄高封閥、管路管件等部件構成。下面
川消小編為您展開解說下。
The gas fire extinguishing system is generally composed of bottle group, selector valve, nozzle, one-way valve, collecting pipe, connecting pipe, safety relief device, driving device, leakage detection device, signal feedback device, low pressure relief and high pressure sealing valve, pipe fittings and other components. Now, let's introduce Chuanxiao.
一、瓶組
1、 Bottle group
瓶組一般由容器、容器閥、泄放裝置、虹吸管、取樣口、檢漏裝置和充裝介質等組成，用于儲存滅火劑和控制滅火劑的釋放。
The bottle group is generally composed of containers, container valves, safety relief devices, siphons, sampling ports, leak detection devices and filling media, which are used to store fire extinguishing agents and control the release of fire extinguishing agents.
容器是用來儲存滅火劑和啟動氣體的重要組件，容器分為鋼質無縫容器和鋼質焊接容器。儲存裝置的容器與其他組件的公稱工作壓力，不應小于在高環境溫度下所承受的工作壓力。
The container is an important component for storing fire extinguishing agent and starting gas. The container is divided into steel seamless container and steel welded container. The nominal working pressure of containers and other components of storage devices shall not be less than the working pressure under high ambient temperature.
二、選擇閥
2、 Selector valve
選擇閥用于組合分配系統，控制滅火劑經管網釋放到預定防護區或保護對象，選擇閥設置應與防護區一一對應。選擇閥可分為活塞式、球閥式、氣動啟動型、電磁啟動型、電爆啟動型和組合啟動型等類型。選擇閥的位置應靠近儲存容器且便于操作。
The selector valve is used for the combined distribution system to control the fire extinguishing agent to be released to the predetermined protection area or object through the pipe network. The setting of the selector valve shall correspond to the protection area one by one. The selector valve can be divided into piston type, ball valve type, pneumatic start type, electromagnetic start type, electric explosion start type and combined start type. The selector valve shall be located close to the storage container and easy to operate.
三、噴頭
3、 Sprinkler head
噴頭是用來控制滅火劑的流速和噴射方向的組件，是氣體滅火系統的一個關鍵部件，噴頭可分為全淹沒滅火方式用噴頭和局部應用滅火方式用噴頭。局部應用滅火方式用噴頭又分為架空型噴頭和槽邊型噴頭。噴頭的布置應滿足噴放后氣體滅火劑在防護區內均勻分布的要求。當保護對象屬可燃液體時，噴頭射流方向不應朝向液體表面。
The sprinkler is a component used to control the flow rate and spraying direction of fire extinguishing agent, and is a key component of the gas fire extinguishing system. The sprinkler can be divided into the sprinkler for total flooding and the sprinkler for local application. Sprinklers for local application of fire extinguishing are divided into overhead sprinkler and slot edge sprinkler. The arrangement of sprinklers shall meet the requirements of uniform distribution of gas extinguishing agent in the protection area after spraying. When the protected object is flammable liquid, the jet direction of the nozzle shall not face the liquid surface.
四、單向閥
4、 Check valve
按安裝在管路中的位置可分為滅火劑流通管路單向閥和驅動氣體控制管路單向閥；按閥體內活動的密封部件型式可分為滑塊型、球型和閥瓣型。滅火劑流通管路單向閥裝于連接管與集流管之間，防止滅火劑從集流管向滅火劑瓶組返流。驅動氣體控制管路單向閥裝于啟動管路上，用來控制氣體流動方向，啟動特定的閥門。
According to the position installed in the pipeline, it can be divided into one-way valve of fire extinguishing agent circulation pipeline and one-way valve of driving gas control pipeline; According to the type of movable sealing parts in the valve body, it can be divided into slider type, ball type and disc type. The one-way valve of the fire extinguishing agent flow pipeline is installed between the connecting pipe and the collecting pipe to prevent the fire extinguishing agent from flowing back from the collecting pipe to the fire extinguishing agent bottle group. The one-way valve of the drive gas control pipeline is installed on the starting pipeline to control the gas flow direction and start specific valves.
五、集流管
5、 Collector pipe
集流管是將多個滅火劑瓶組的滅火劑匯集一起，再分配到各防護區的匯流管路，，組合分配系統的集流管，應設泄壓裝置，下圖13為集流管示意圖。
The collecting pipe is used to collect the extinguishant of multiple extinguishant bottle groups and distribute them to the collecting pipe of each protection area. The collecting pipe of the combined distribution system should be equipped with a safety relief device. The following figure 13 is the schematic diagram of the collecting pipe.
六、連接管
6、 Connecting pipe
連接管可分為容器閥與集流管之間連接管和控制管路連接管，如圖下所示在滅火劑瓶容器閥與集流管之間的管段為高壓連接軟管：
The connecting pipe can be divided into the connecting pipe between the container valve and the collecting pipe and the connecting pipe of the control pipeline. As shown in the figure below, the pipe section between the container valve of the fire extinguishing agent bottle and the collecting pipe is a high-pressure connecting hose:
容器閥與集流管之間連接管按材料分為高壓不銹鋼連接管和高壓橡膠連接管。輸送氣體滅火劑的管道應采用無縫鋼管，管內外應進行防腐處理；管道安裝在腐蝕性較大的環境里時，宜采用不銹鋼管。輸送啟動氣體的管道，宜采用銅管。
The connecting pipe between the vessel valve and the collecting pipe is divided into high-pressure stainless steel connecting pipe and high-pressure rubber connecting pipe according to the material. Seamless steel pipes shall be used to transport gas extinguishing agent, and anti-corrosion treatment shall be carried out inside and outside the pipes; When the pipeline is installed in a highly corrosive environment, stainless steel pipes should be used. Copper pipes should be used for transporting starting gas.
七、泄壓裝置
7、 Safety relief device
泄壓裝置可分為滅火劑瓶組泄壓裝置、驅動氣體瓶組泄壓裝置和集流管泄壓裝置三種。泄放裝置的動作壓力應符合氣體滅火系統的設計規定。
Safety pressure relief devices can be divided into three types: safety pressure relief device for fire extinguishing agent bottle group, safety pressure relief device for driving gas bottle group and safety pressure relief device for collecting pipe. The operating pressure of the safety relief device shall comply with the design provisions of the gas fire extinguishing system.
八、驅動裝置
8、 Drive unit
驅動裝置用于驅動容器閥、選擇閥使其動作，
The drive device is used to drive the container valve and selector valve to make them act,
它可分為氣動型驅動器、引爆型驅動器、電磁型驅動裝置、機械型驅動器和燃氣型驅動器等類型。
It can be divided into pneumatic driver, explosive driver, electromagnetic driver, mechanical driver and gas driver.
九、檢漏裝置
9、 Leak detector
檢漏裝置用于監測瓶組內介質的壓力或質量損失。它包括壓力顯示器、稱重裝置和液位測量裝置等。下圖為氣體滅火系統稱重裝置。
The leak detection device is used to monitor the pressure or mass loss of the medium in the bottle group. It includes pressure display, weighing device, liquid level measuring device, etc. The following figure shows the weighing device of the gas fire extinguishing system.
十、信號反饋裝置
10、 Signal feedback device
信號反饋裝置是安裝在滅火劑釋放管路或選擇閥上，將滅火劑釋放的壓力或流量信號轉換為電信號，并反饋到控制中心的裝置，如圖下圖所示。常見的是把壓力信號轉換為電信號的信號反饋裝置，一般也稱為壓力開關。
The signal feedback device is a device installed on the extinguishing agent release pipeline or selector valve to convert the pressure or flow signal released by the extinguishing agent into an electrical signal and feed it back to the control center, as shown in the figure below. Common is the signal feedback device that converts pressure signal into electrical signal, which is also called pressure switch.
十一、低泄高封閥
11、 Low discharge and high sealing valve
低泄高封閥是為了防止驅動氣體泄漏的累積而引起系統的誤動作而在管路中設置的閥門，它安裝在系統啟動管路上，正常情況下處于開啟狀態，只有進口壓力達到設定壓力時才關閉，其主要作用是排除由于氣源泄漏積聚在啟動管路內的氣體。
The low leakage and high sealing valve is a valve set in the pipeline to prevent the misoperation of the system caused by the accumulation of drive gas leakage. It is installed on the startup pipeline of the system and is normally open. It is closed only when the inlet pressure reaches the set pressure. Its main function is to eliminate the gas accumulated in the startup pipeline due to the gas source leakage.
In addition, different gas fire extinguishing systems have different structural forms and components. For this, you can visit our website http://m.xintli.net Learn more!
