川消水幕喷头等系统的内容要求
来源：http://www.cx-fire.com/ 日期：2022-05-26
水幕系统由开放式喷水器或水幕喷水器、雨淋报警阀组、给配水管道、控制阀和水流报警装置组成。水幕系统不具备自动灭火的能力，而是用于防火分隔和降温保护分隔。今天给大家分享一下水幕喷头等系统的相关内容。
The water curtain system consists of open sprinkler or water curtain sprinkler, deluge alarm valve group, water supply and distribution pipeline, control valve and water flow alarm device. The water curtain system does not have the ability of automatic fire extinguishing, but is used for fire separation and cooling protection separation. Today, I'd like to share with you the relevant contents of water curtain sprinkler and other systems.
水幕系统的工作原理
Working principle of water curtain system
当系统处于准工作状态时，管道内的充水压力由消防水箱、稳压泵、气压供水设备等稳压设施维持。发生火灾时，火灾自动报警系统将打开雨淋报警阀组，系统管网压力开关启动供水泵，向系统管网和洒水器供水。
When the system is in the quasi working state, the water filling pressure in the pipeline is maintained by pressure stabilizing facilities such as fire water tank, pressure stabilizing pump and pneumatic water supply equipment. In case of fire, the automatic fire alarm system will open the deluge alarm valve group, and the pressure switch of the system pipe network will start the water supply pump to supply water to the system pipe network and sprinkler.
水幕系统的喷头选择应符合以下要求：
The nozzle selection of water curtain system shall meet the following requirements:
防火分隔水帘宜采用开放式洒水器或水帘式洒水器。保护性冷却水幕宜采用水幕喷头。防火隔离水帘的作用是阻隔烟火蔓延。当水幕形成密集喷淋的水墙时，需要喷头；当水幕形成密集喷水幕时，要求采用向下开口。水帘洒水器。同时使用上述两个喷头也可以并排布置防火水幕。保护性冷却水幕需要使用水幕喷头将水喷射到被保护物体上。
Open sprinkler or water curtain sprinkler should be used for fire separation water curtain. Protective cooling water curtain should adopt water curtain nozzle. The function of fireproof isolation water curtain is to prevent the spread of fireworks. When the water curtain forms a water wall with dense spraying, a sprinkler is required; When the water curtain forms a dense water spray curtain, the downward opening is required. Water curtain sprinkler. At the same time, the two nozzles can also be arranged side by side. The protective cooling water curtain needs to use the water curtain nozzle to spray water onto the protected object.
川消水幕系统洒水装置布置
Sprinkler arrangement of Sichuan water curtain system
保护冷却水幕喷水点高度每增加1m，喷水强度应增加0.1L/(s·m)，但当高度超过9m时，喷水强度仍为1.0L/(s·m)。
When the height of the water spraying point of the protective cooling water curtain increases by 1m, the water spraying intensity shall increase by 0.1L / (s · m), but when the height exceeds 9m, the water spraying intensity is still 1.0L / (s · m).
系统的连续喷水时间不应小于系统设置部分的耐火极限要求。防火隔离水幕用于更换防火墙，其连续喷水时间不应小于防火墙的耐火极限。保护性冷却水幕用于补充被保护物的耐火和隔热，其连续喷水时间不应低于被保护部分的耐火和隔热要求。
The continuous water spraying time of the system shall not be less than the fire resistance limit requirements of the system setting part. The fire isolation water curtain is used to replace the firewall, and its continuous water spraying time shall not be less than the fire resistance limit of the firewall. The protective cooling water curtain is used to supplement the fire resistance and heat insulation of the protected object, and its continuous water spraying time shall not be lower than the fire resistance and heat insulation requirements of the protected part.
The layout of the sprinkler head of Sichuan water curtain shall comply with the corresponding regulations.
防护冷却水幕应直接向被保护对象喷水，尺寸超过15m×8m的开口（舞台开口除外）不得使用防火分隔水幕。
The protective cooling water curtain shall spray water directly to the protected object, with a size of more than 15m × Fire separation water curtain shall not be used for 8m opening (except stage opening).
防火分隔水帘的喷头布置应保证水帘宽度不小于6m。使用水幕喷头时，喷头不少于3排；使用开放式喷头时，喷头不应少于2排。保护性冷却水幕的喷头宜单排布置。
The sprinkler arrangement of fire separation water curtain shall ensure that the width of water curtain is not less than 6m. When using water curtain nozzle, the nozzle shall not be less than 3 rows; When using open sprinkler, the sprinkler shall not be less than 2 rows. The sprinkler of protective cooling water curtain should be arranged in a single row.
采用保护性冷却系统保护防火卷帘、防火玻璃墙等防火隔离设施时，该系统应独立设置，并应符合下列要求：
When protective cooling system is used to protect fireproof isolation facilities such as fireproof rolling shutter and fireproof glass wall, the system shall be set independently and meet the following requirements:
喷头的设置高度不应超过8m；当设置高度为4m~8m时，应使用快速反应喷头。
The setting height of sprinkler shall not exceed 8m; When the setting height is 4m ~ 8m, the rapid reaction nozzle shall be used.
喷头高度不超过4m时，喷水强度不应小于0.5L/(s·m)；喷头超过4m时，每增加1m，喷水强度增加0.1L/(s·m)。
When the nozzle height does not exceed 4m, the water spraying intensity shall not be less than 0.5L / (s · m); When the nozzle exceeds 4m, the water spraying intensity increases by 0.1L / (s · m) for every 1m.
喷头的设置应保证喷水后均匀分布于被保护物体，喷头间距为1.8m~2.4m；喷头防溅板与防火分隔设施的水平距离不应大于0.3m，与顶板的距离应符合相应规定。
The nozzle shall be set to ensure that it is evenly distributed on the protected object after spraying, and the nozzle spacing shall be 1.8m ~ 2.4m; The horizontal distance between the sprinkler splash board and the fire separation facilities shall not be greater than 0.3m, and the distance from the sprinkler splash board to the top plate shall comply with the corresponding regulations.
除非另有规定，系统的连续喷水时间应按着火持续时间不少于1.0h确定。
Unless otherwise specified, the continuous water spraying time of the system shall be determined according to the fire duration of not less than 1.0h.
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