川消水幕噴頭等系統(tǒng)的內(nèi)容要求
來源：http://www.xintli.net/ 日期：2022-05-26
水幕系統(tǒng)由開放式噴水器或水幕噴水器、雨淋報警閥組、給配水管道、控制閥和水流報警裝置組成。水幕系統(tǒng)不具備自動滅火的能力，而是用于防火分隔和降溫保護分隔。今天給大家分享一下水幕噴頭等系統(tǒng)的相關內(nèi)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.
水幕系統(tǒng)的工作原理
Working principle of water curtain system
當系統(tǒng)處于準工作狀態(tài)時，管道內(nèi)的充水壓力由消防水箱、穩(wěn)壓泵、氣壓供水設備等穩(wěn)壓設施維持。發(fā)生火災時，火災自動報警系統(tǒng)將打開雨淋報警閥組，系統(tǒng)管網(wǎng)壓力開關啟動供水泵，向系統(tǒng)管網(wǎng)和灑水器供水。
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.
水幕系統(tǒng)的噴頭選擇應符合以下要求：
The nozzle selection of water curtain system shall meet the following requirements:
防火分隔水簾宜采用開放式灑水器或水簾式灑水器。保護性冷卻水幕宜采用水幕噴頭。防火隔離水簾的作用是阻隔煙火蔓延。當水幕形成密集噴淋的水墻時，需要噴頭；當水幕形成密集噴水幕時，要求采用向下開口。水簾灑水器。同時使用上述兩個噴頭也可以并排布置防火水幕。保護性冷卻水幕需要使用水幕噴頭將水噴射到被保護物體上。
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.
川消水幕系統(tǒng)灑水裝置布置
Sprinkler arrangement of Sichuan water curtain system
保護冷卻水幕噴水點高度每增加1m，噴水強度應增加0.1L/(s·m)，但當高度超過9m時，噴水強度仍為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).
系統(tǒng)的連續(xù)噴水時間不應小于系統(tǒng)設置部分的耐火極限要求。防火隔離水幕用于更換防火墻，其連續(xù)噴水時間不應小于防火墻的耐火極限。保護性冷卻水幕用于補充被保護物的耐火和隔熱，其連續(xù)噴水時間不應低于被保護部分的耐火和隔熱要求。
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.
防護冷卻水幕應直接向被保護對象噴水，尺寸超過15m×8m的開口（舞臺開口除外）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).
防火分隔水簾的噴頭布置應保證水簾寬度不小于6m。使用水幕噴頭時，噴頭不少于3排；使用開放式噴頭時，噴頭不應少于2排。保護性冷卻水幕的噴頭宜單排布置。
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.
采用保護性冷卻系統(tǒng)保護防火卷簾、防火玻璃墻等防火隔離設施時，該系統(tǒng)應獨立設置，并應符合下列要求：
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:
噴頭的設置高度不應超過8m；當設置高度為4m~8m時，應使用快速反應噴頭。
The setting height of sprinkler shall not exceed 8m; When the setting height is 4m ~ 8m, the rapid reaction nozzle shall be used.
噴頭高度不超過4m時，噴水強度不應小于0.5L/(s·m)；噴頭超過4m時，每增加1m，噴水強度增加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.
噴頭的設置應保證噴水后均勻分布于被保護物體，噴頭間距為1.8m~2.4m；噴頭防濺板與防火分隔設施的水平距離不應大于0.3m，與頂板的距離應符合相應規(guī)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.
除非另有規(guī)定，系統(tǒng)的連續(xù)噴水時間應按著火持續(xù)時間不少于1.0h確定。
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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