Hotwork熱作業(yè)動火作業(yè)培訓課件

1、Hot workSNPT HSE TrainingHotwork熱作業(yè)動火作業(yè)培訓What is Hot Work？什么是熱作業(yè)？A work will generate sufficient energy (e.g. heat, sparks) to ignite flammable or combustible gas which includes welding, cutting, burning, brazing, grinding, and the use of open flame etc.能夠產生足夠的能量點燃可燃或易燃氣體的工作, 其包括焊接、切割、燃燒，打磨以及使用明火等。H

2、otwork熱作業(yè)動火作業(yè)培訓Hazard of Hot Work 熱作業(yè)的危害Hot Work generate 熱作業(yè)可能產生: Radiation Energy 輻射能 Temperature 高溫 Fumes&gases 煙霧和氣體 Noise 噪音 Sparks& slags 火花和焊渣Result in導致： Fire火災 Explosion爆炸 Loss of life and property人身傷害和財產損失Hotwork熱作業(yè)動火作業(yè)培訓Hot work needed to use work permit 需要安全作業(yè)許可證的熱作業(yè) Welding, bur

3、ning, or use of open flames in SNPT site except routine hot work in designated place. 在非指定的例行熱作業(yè)區(qū)域的焊接、燃燒、或使用明火 Use of spark or heat producing tools or equipment in classified explosive area. 在爆炸危險區(qū)域使用產生火花或高溫的工具或設備 Use of electrical tools, electronic equipment or vehicles not approved for the use wit

4、hin a classified explosive hazardous area. 在爆炸危險區(qū)域內使用非防爆的或防爆等級不夠的電氣工具、電子設備或運輸工具Hotwork熱作業(yè)動火作業(yè)培訓Prohibition to Hot Work 禁止熱作業(yè)In areas not authorized by management未經批準的熱作業(yè)區(qū)域；In the area of buildings with safety system ( e.g.fire dector, sprinkler) while such protection is actived裝有消防安全系統(tǒng)（如火災報警探頭，消防噴淋）

5、的建筑區(qū)域，當其有效時；In the presence of explosive atmospheres that may be present or may develop inside tanks or equipment that may have contained flammable gases, vapors, liquids, or dusts;可能存在易爆氣體的儲罐或可能有易燃氣體、蒸氣、液體或粉塵的設備；In areas near the storage of large quantities of exposed, readily ignitable materials大量

6、暴露的，能快速點燃物品區(qū)域Hotwork熱作業(yè)動火作業(yè)培訓Combustible gas monitoring 可燃氣體檢測Hot work in a classified explosive Area在防爆區(qū)域內的熱作業(yè);Welding, burning, or use of open flames in a non-explosive area which borders on or has combustibles在接近可燃物或有可燃物的區(qū)域進行焊接、燃燒、或使用明火作業(yè);Hotwork熱作業(yè)動火作業(yè)培訓Combustible gas monitoring frequency可燃氣體檢測

7、頻率At the time of the on-site Safe Work Permit inspection. 現場檢查時進行。When the safe working conditions upon which the Safe Work Permit for hot work are based are not being maintained and/or have changed. 熱工作業(yè)安全作業(yè)許可證確認的安全工作條件不能維持和/或已經改變。Periodically or continuously as specified on the Work Permit for hot

8、 work. 熱工作業(yè)安全作業(yè)許可證指定須定時或連續(xù)地進行。If the Work Permit for hot work is suspended and needs to be re-authorized because of a work stoppage. 如果熱工作業(yè)安全作業(yè)許可證被暫停，并因工作中斷需要重新批準 Hotwork熱作業(yè)動火作業(yè)培訓Combustible gas test 可燃氣體檢測Flammable gas, vapor concentration shall be less than 10% of its lower explosive limit (LEL) 可

9、燃氣體、蒸氣濃度應小于爆炸下限的10%；Sample test of combustible gas shall be representative; Combustible gas detector shall be calibrated可燃氣體分析應具有代表性；可燃氣體檢測儀應經過校驗The frequency of Combustible gas test during work depends on work circumstance and work risk. 可燃氣體分析的頻率取決于工作環(huán)境和工作風險?？蛇x擇連續(xù)監(jiān)測，定時監(jiān)測；Hotwork熱作業(yè)動火作業(yè)培訓Prior to w

10、ork 工作前準備Initial Survey 預先檢查 The work area shall be checked and determined to be clear of actual or potential flammalbe atmospheres作業(yè)前工作區(qū)域必須檢查確定無實際和潛在的可燃氣體氛圍。 If detectable levels are observed, hot work, spark-producing work, or heat-generating work shall not be performed until the source is found a

11、nd eliminated.如果檢測到危害存在，必須找到并消除危害，方可實施熱作業(yè)，產生火花或放熱的作業(yè)。Hotwork熱作業(yè)動火作業(yè)培訓Prior to work - Area Preparation 工作前準備-區(qū)域準備Area Segregation 區(qū)域隔離 Sparks, slag etc., will be contained within practical limits. In those cases where sparks, slag, etc., may fall from one level to another, the surrounding area will b

12、e火花、焊渣、高溫螺栓等應被控制在一定區(qū)域內。在火花、焊渣等可能掉落的地方，須采取以下措施： Roped off 設立隔離區(qū) Provided with a Fire Watcher 指定另一消防監(jiān)護員 Wetted down with water, if needed, and 如有必要，進行灑水； Marked with signs, as necessary設置必要的警示牌Hotwork熱作業(yè)動火作業(yè)培訓Prior to work - Area Preparation 工作前準備-區(qū)域準備Segregation of Combustibles可燃物的隔離If an object to b

13、e welded or cut can be move, move the object to a safe position to do hot work. 如焊接或切割物可移動，移至安全區(qū)域從事熱作業(yè)。If an object to be welded or cut can not be moved, all movable fire hazards in the vicinity shall be taken to a safe position. 如焊接或切割物不可移動，附近火災危險物應移至安全區(qū)域。If the fire hazards are not movable, then g

14、uards shall be used to confine the heat, sparks and slag, and to protect the immovable fire hazards如焊接或切割物不可移動，附近火災危險物也不能移動，應采取防護裝置來控制熱、火花、焊渣以及不能移動的火災危險物。If neither of the above can be accomplished, hot work is prohibited. 如以上均不能滿足，禁止熱作業(yè)。Hotwork熱作業(yè)動火作業(yè)培訓Prior to work - Equipment Preparation 工作前準備-設備

15、準備 When doing hot work on lines or equipment that last contained flammables or combustibles, then the energy sources have been isolated using at least one of the following methods: 在存放過易燃或可燃物質的設備上進行熱工作業(yè)時，必須至少使用下面所列的一種方法隔離能量源 Disconnection and misalignment of the piping to provide an air gap. 斷開并錯開管線

16、以存在一空氣間隙。Installation of blinds as close as possible to the equipment with blinds which are appropriate for the chemical, temperature and pressure of the service. 在盡可能靠近設備的一端安裝盲板，盲板應該適合隔離的化學品、溫度和壓力。Double blocks and bleeds. 使用雙重阻斷及排放。Hotwork熱作業(yè)動火作業(yè)培訓Prior to work - Equipment Preparation 工作前準備-設備準備 W

17、hen the clearing of residual contents is not feasible, then line plugs / stopples and purge gases have been used sufficient to remove oxygen to a level such that: 如不能完全清除殘留的介質，須使用 管塞或凈化氣體使氧氣達到下面的水平：The concentration of combustibles at the hot work point is at 0%. 熱工作業(yè)點的最低爆炸極限（LEL）是 0。The concentrati

18、on of combustibles at the point of exit of the purge gas is less than 10% of LEL 出口處凈化氣體的可燃氣體濃度小于10% LEL。Hotwork熱作業(yè)動火作業(yè)培訓Prior to work 工作前準備Ventilation通風措施 Nature ventilation 自然通風 Mechanic ventilation 機械通風 Ducts and conveyor systems that might carry sparks to distant combustibles shall be suitably p

19、rotected or shut down 可能將火花帶至較遠處的可燃物處的輸送系統(tǒng)和送風系統(tǒng)應適當防護和關閉。Hotwork熱作業(yè)動火作業(yè)培訓Pre - workElectrical safety of the machine or equipment (e.g., welding machine) in classified explosive area 在電氣防爆區(qū)域使用設備的電氣安全 Earthing 接地 Temporary Use of Power 臨時電源safety system Isolation( e.g.fire dector, sprinkler) 消防安全系統(tǒng)隔離（如

20、火災報警探頭，消防噴淋）Hotwork熱作業(yè)動火作業(yè)培訓During work 工作中The measures used during hot work include:熱作業(yè)中的控制措施包括： Fire and explosion protection measures: 防火災和爆炸控制方法有：- Continuously or regularly gas test 氣體連續(xù)或間斷地檢測- Keep worksite damp 保持工作場所潮濕- Monitor and maintain inerting process 監(jiān)測和維持惰性氣體保護- Monitor and maintain

21、water filling 監(jiān)測和維持充水保護- Provide Fire Protection equipment 消防器材 Monitor by firewatcher 消防監(jiān)護人監(jiān)護 Ventilation 通風- Nature ventilation or mechanic ventilation 自然通風或機械通風- Extract dust/gas/vapor at its source 在釋放源抽走粉塵/氣體/蒸汽Hotwork熱作業(yè)動火作業(yè)培訓Post Work 工作后Check the workplace after completion of hot work operat

22、ions, detect and extinguish possible smoldering fires.動火結束后，檢查工作場地是否有余燼并消除。Hotwork熱作業(yè)動火作業(yè)培訓Fire Watcher 消防監(jiān)護人 A fire watcher is required whenever welding or cutting is performed in locations where other than a minor fire might develop, or if any of the following condition exists:在小火可能擴大的場所進行焊接或切割時，或

23、以下任何情況存在是需要消防監(jiān)護人： Appreciable combustible materials is closer than 15m to the point of hot work可預知的易燃物離熱作業(yè)的距離小于15m Appreciable combustibles are more than 15m away but may be easily ignited by sparks可預知的易燃物離熱作業(yè)的距離雖大于15m但易被火花點燃 Wall or floor openings within 15m radius expose combustible material in ad

24、jacent areas including concealed spaces in walls or floors在半徑15m以內的地面和墻的孔洞，包括隱蔽空間，有暴露的可燃物 Combustible materials are adjacent to the opposite side of metal partitions, walls, ceilings, or roofs and are likely to be ignited by conduction or radiation易燃物很可能被周圍的金屬分隔物、墻面、天花板或屋頂的反光造成的熱傳導或輻射點燃Hotwork熱作業(yè)動火作業(yè)培訓Responsibility of Fire Watcher 消防監(jiān)護人的職責Constantly observe for changing conditions, the presence of flammable or combustible materials, spark/slag con