隨著數據中心、地鐵、高鐵、變電站等重點場所對消防系統的響應速度、滅火效率與環境友好度要求不斷提升，傳統滅火方式面臨水損大、電氣風險高等局限。作為一種新興的高效滅火技術，細水霧滅火系統憑借其出色的冷卻、抑火與環保性能，正被廣泛應用于多行業場景。
江西劍安消防為您全面解析細水霧滅火系統的工作原理與核心優勢，助力項目設計、系統選型與技術評估。
細水霧系統
精細霧化，高效滅火
細水霧滅火系統是通過高壓泵或氣驅裝置將水壓升至8-16 MPa（兆帕），經過專用霧化噴頭將水霧化成10-100μm（微米）的小顆粒，從而形成具有高能量轉化效率的“細水霧云團”，實現快速滅火。
| 系統類型 | 驅動方式 | 霧滴粒徑 | 工作壓力范圍 | 典型應用場景 |
|---|---|---|---|---|
| 高壓細水霧系統 | 電動/柴油泵 | 10~100μm | 8~16MPa | 數據中心、變電站、機房 |
| 低壓細水霧系統 | 壓縮氣體驅動 | 50~200μm | 0.8~1.6MPa | 廚房設備、電梯井、交通工具 |
江西劍安消防提供多類型細水霧系統方案，可按項目需求定制。
細水霧滅火系統的五大核心滅火機理
快速冷卻吸熱
細水霧粒徑越小，其表面積越大，汽化速度越快，從而迅速吸收火場熱量、快速降溫。下表說明了不同粒徑水滴的汽化性能差異：
| 霧滴直徑 | 每升水表面積 | 汽化時間 | 自由下落速度 |
|---|---|---|---|
| 10μm | 0.6㎡ | 620秒 | 9.2 m/s |
| 1μm | 6.0㎡ | 6.2秒 | 4.0 m/s |
| 0.1μm | 60.0㎡ | 0.062秒 | 0.35 m/s |
| 0.01μm | 600.0㎡ | 0.0062秒 | 0.003 m/s |
系統啟動后，細水霧在極短時間內覆蓋整個防護區，迅速帶走火源熱量。
稀釋氧氣，抑制燃燒鏈
霧滴汽化后形成大量水蒸氣，與空氣中氧氣結合稀釋，降低局部氧濃度。如下圖實測所示，在45秒內氧濃度降至16%以下，已低于多數燃燒反應的維持下限。
該機制特別適用于封閉區域滅火，如通信間、配電房等。
阻隔輻射熱傳播
水蒸氣可吸收和散射火焰釋放的紅外輻射能，形成“輻射屏障”，防止周邊未燃物被點燃。研究表明，霧場厚度越大，輻射熱阻斷效率越高。如下圖示：
| 霧場厚度（cm） | 輻射熱阻斷效率 |
|---|---|
| 10 | 0.08 |
| 30 | 0.18 |
| 40 | 0.24 |
細水霧適用于電纜橋架區、燃料倉儲間等需阻熱擴散的場所。
吸附煙氣顆粒，凈化有毒氣體
火災中的傷害往往源于CO等有毒氣體。細水霧與煙氣顆粒迅速結合沉降，可顯著降低煙氣毒性、改善能見度、提升逃生與救援效率。
根據美國消防協會NFPA 750標準：
“超過95%的火災死亡原因并非高溫本身，而是煙氣毒害與能見度下降。”
本系統特別適合公共交通車廂、地下車庫、圖書館等易煙氣擴散場景。
均勻冷卻，保護財產與設備
細水霧覆蓋均勻，避免設備表面局部過熱，尤其適用于精密電子設備及紙張、布料、木材等耐濕性差的區域。
同時，系統用水量僅為傳統噴淋的1/10~1/100，降低水漬殘留風險，廣泛應用于：
數據中心、檔案館、博物館、配電室
技術標準與性能參數
| 項目 | 參數范圍 | 標準來源 |
|---|---|---|
| 霧滴粒徑 | 10~100μm | NFPA 750 / GB50370-2005 |
| 工作壓力 | 8 | 企業標準 + 實測數據 |
| 單噴頭覆蓋面積 | 4~16㎡ | 項目經驗 |
| 啟動響應時間 | ＜10秒 | 系統配置說明 |
| 用水量（典型滅火時間60秒內） | 15~30L | 與傳統噴淋系統比較測試結果 |
江西劍安消防細水霧系統已通過國家消防產品認證（CCCF），滿足行業工程驗收規范。
典型應用場景
Power industry：廣州白云區220kV變電站電纜夾層保護，采用高壓細水霧系統，0次誤噴、100%動作成功；
數據中心：湖南懷化通信運營商IDC機房，部署氣驅細水霧系統，實現“無水損滅火”；
城市軌道交通：上海地鐵風道細水霧系統聯動啟動，實測降溫時間<30秒，有效控制初起火源；
江西劍安消防專注于高端滅火系統的研發與制造，細水霧產品廣泛應用于能源、通信、交通、文博等多個行業，為客戶提供從設計咨詢到系統部署的一站式服務。
如您有項目需求，歡迎聯系我們的技術團隊獲取詳細設計方案、配置清單與招標技術文書。
? ? ? ? Among many fire extinguishing agents, Heptafluoropropane gas belongs to colorless, odorless, non-conductive and non-secondary pollution gas, which has the characteristics of cleanliness, low toxicity, good electric insulation and high fire extinguishing efficiency in the fire scene. Heptafluoropropane gas extinguisher adopts 304 stainless steel and carbon steel as the tank, and adopts Heptafluoropropane gas as the extinguishing agent. Through the Heptafluoropropane gas extinguishers, fire detectors, gas extinguishing controllers, acoustic and visual alarms, alarm bells, bleeder indicator lights, emergency start/stop buttons, and other related system components, Jian'an Firefighting can help the enterprise users to set up the Heptafluoropropane gas extinguishing system.
(i) Product characteristics of Heptafluoropropane gas fire extinguishers
General.Heptafluoropropane gas fire extinguisherIt is mainly composed of storage tank body, storage bottle group frame, gas check valve, manifold, control valve, elbow, reducer elbow, flange, safety valve, pressure signal transmitter and other components. At present, sevoflurane gas extinguishers on the market mainly use pipe network type, cabinet type and hanging type three kinds, and its on-site delivery distance is within 30 meters, and there is also a kind of external storage pressure sevoflurane gas extinguishers, and its delivery distance can reach 150 meters. In terms of extinguishing characteristics, Heptafluoropropane gas extinguisher adopts Heptafluoropropane gas as the extinguishing agent, which is overall neat and environmentally friendly, has good cleanliness, completely vaporizes in the atmosphere without residue, has good electrical insulation and high extinguishing efficiency.
? ? ? ? (ii) Precautions for Heptafluoropropane gas extinguishers
In Heptafluoropropane gas fire extinguishers, it is necessary to focus on the daily maintenance and inspection of container valves, manifolds, control valves, check valves, nozzles and valve actuators, and it is necessary to ensure that the conditions of the protective zone and the setting conditions of the extinguishing agent storage bottles are consistent with the design. Before starting to extinguish the fire, it is necessary to carefully check that the external surface of the heptafluoropropane gas extinguisher has no obvious deformation and damage, the surface coating is intact, while the interface threads and flange sealing surface are not damaged. As for the storage cylinder, the cylinder must be filled with Heptafluoropropane gas in accordance with the design requirements before installation, and the pressure surface on the head valve is installed towards the operation surface, while the installation height and direction need to be consistent.
The above is about the product characteristics and precautions of Heptafluoropropane gas fire extinguisher, which can be widely used in machine rooms, data centers, telecommunication projects, medical equipment, industrial equipment, archives, libraries, museums, distribution stations, flammable liquid storage tanks and other places with outstanding fire extinguishing advantages.
? ? ? ? As they say, fire and water have no mercy, China's manufacturing industry is booming, a variety of factories are also very much, and these places are frequent fires, firefighters are ready to go, in the new era, the progress of science and technology has led to the updating of fire-fighting equipment, and today we would like to introduce a special fire-fighting materials - thermal aerosols; thermal aerosol fire-fighting Device currently in the oil and gas, transportation, emergency rescue, power information and other industries have a wide range of uses. So, hot aerosols in which industry will be used more often?
? ?Electrical switchgear plant usage
? ? ? ? For power workers, every day we have to face a lot of power equipment, such as some substation room, transformer room, battery room, etc., these places are not allowed to be a little bit of flashbacks, fire prevention measures to be done to the utmost, leakage discharge may cause sparks can cause power fires, but the power fires can not be used in the traditional way of extinguishing the fire, but also may be damage to the equipment, so the fire extinguishing device made of hot aerosol is It can automatically start, and no damage to equipment, low maintenance costs, high security.
? ? ? ? Cable Tunnel Site Usage
Power industry includes many scenarios, power cable is an indispensable part of the power plant, substation, our daily use of the cable, although good waterproof performance, corrosion resistance, long service life, but the fire performance is not so superior, the cable fire is still very harmful, and many cables are placed in a ditch, the cable ditch space is small, there are a variety of hidden dangers, hot aerosol fire extinguishing device automatic The automatic start of the hot aerosol fire extinguishing device can play a big role.
Thermal aerosol automatic fire extinguishing device in the power industry in the utility of far more than these aspects, in some insulated oil reservoirs, turbine oil reservoirs, hot aerosol fire extinguishing is also one of our good choices. In fact, what industry can not be separated from the power, now more fires in favor of industrial fires, and the power industry scene is more complex, in order to reduce the loss of power equipment, hot aerosols and other new generation of fire extinguishing devices will play a greater role.