Question 2: What matters should be paid attention to in hot work safety, for reference only:
Chapter I General Provisions
Article 1 In order to standardize the safety management of industrial hot work of Southwest Oil and Gas Field Company (hereinafter referred to as the Company) and prevent accidents, these Provisions are formulated according to SY/T5858-2004 Safety Regulations for Hot Work in Petroleum Industry, Interim Measures for Safety Management of Industrial Hot Work in Exploration and Production Branch of China Petroleum and Natural Gas Co., Ltd. and Regulations for Safety Management of Industrial Hot Work in Refining and Chemical Specialty of China Petroleum and Natural Gas Co., Ltd. and other relevant standards and regulations.
Article 2 Industrial hot work refers to welding and cutting operations in oil and gas, inflammable and explosive dangerous areas and oil and gas containers, pipelines, equipment or containers containing inflammable and explosive articles, as well as other construction operations that directly or indirectly produce open flames.
Article 3 The industrial hot work of the branch company shall implement the industrial hot work ticket system. The industrial hot work ticket shall specify the hot work scope, determine hazards and assess risks, and formulate corresponding preventive measures.
Article 4 The industrial hot work ticket is the basis for hot work on site and shall not be altered or signed. The hot work ticket can only be used once in one place. The valid time of special hot work and first-class industrial hot work tickets shall not exceed 8 hours. If the hot work cannot be completed on duty, the operation shall be reconfirmed during the shift change, and technical disclosure shall be made, which shall be valid only after being signed by the corresponding personnel. The second-class industrial hot work ticket is valid for no more than 3 days, and the third-class industrial hot work ticket is valid for no more than 5 days; When Grade II and III hot work lasts for more than one day, the hot work operator and guardian * * * should check the hot work site and safety measures before starting work every day, and hot work can only be started if they are qualified.
Article 5 During the preparation of hot work, the construction unit shall closely cooperate with the production unit to identify the hazards, formulate the hot work plan and control measures, and formulate the change management and emergency plan.
Article 6 Anyone who fails to go through the hot work procedures, implement the hot work safety measures, set up the on-site hot work guardian or make major changes to the hot work scheme without approval is prohibited from doing hot work. In the process of hot work, if abnormal conditions are found, hot work should be stopped immediately. It is forbidden to carry out hot work that is inconsistent with the hot work plan and hot work ticket.
Article 7 These Provisions are applicable to industrial hot work in flammable and explosive places such as oil and gas exploration, development, storage and transportation, refining, oil and gas pipelines and oil and gas field infrastructure within the jurisdiction of Southwest Oil and Gas Field Company.
Chapter II Classification of Industrial Hot Work
According to the production characteristics of the branch company, the degree of danger, influence range and the possibility of accidents in the explosion dangerous area of the hot work workplace, the industrial hot work of the branch company is divided into oil and gas production (including natural gas purification) industrial hot work and oil refining and chemical industry hot work, which are managed separately.
Article 8 Classification of industrial fires in oil and gas production (including natural gas purification).
(1) Class I hot work
(1) Oil depots and joint stations with crude oil reserves above 10000m3 (including 10000m3), and oil and gas pipelines and containers in use within the explosion danger range within the enclosure are hot;
(2) Hot work with a capacity greater than 5000m3 (including 5000m3, including crude oil tanks, dirty oil tanks, oily sewage tanks and natural gas tanks). ), boxes and accessories;
(3) Hot work of natural gas storage tanks and liquefied petroleum gas storage tanks with capacity greater than 400m3 (including 400m3);
(4) Hot work of product oil storage tanks and light hydrocarbon storage tanks with capacity greater than 1000m3 (inclusive);
(5) The gathering and transportation pipelines and oil (gas) trunk lines with a diameter greater than 426 mm (including 426 mm) are stopped for hot work, or the pipeline equipment is replaced for hot work under pressure;
(6) Hot work of natural gas purification device, gas gathering station, heating furnace, solvent tower, separation tank and on-site heat exchange equipment;
(7) Hot work shall be carried out for fittings and instruments of natural gas compressor station, flowmeter room, valve group room, instrument room and natural gas pipeline;
(8) Uncontrolled part of wellhead of natural gas well generates heat;
(2) Secondary hot work
(1) Oil depots and joint stations with crude oil reserves of 1000m3 ~ 10000m3, and oil and gas pipelines and containers in use in the explosion danger area within the enclosure are hot;
(2) Hot work of storage tanks, boxes and accessories with capacity less than 5000m3;
(3) Hot work of liquefied petroleum gas storage tanks with a volume less than 400 cubic meters;
(4) Hot work of product oil tanks and light hydrocarbon storage tanks with volume less than 1000 m3;
(5) Hot work in the crude oil metering and calibration room, metering room, valve group room, instrument room, crude oil and sewage pump room of10000m3 crude oil depot;
(6) Equipment and pipelines inside and outside the railway tanker loading and unloading trestle and tanker loading and unloading platform ... >>
Question 3: What preparations should be made for the tank of flammable liquid before hot work? When the pipeline of thermal equipment needs inert gas replacement, portable detector or sampling can be used for inspection. Flammables around the hot work area need to be removed, warning zones and necessary warning signs should be set up, fire extinguishers should be equipped and fire hoses should be laid, and the welding slag generated by hot work at high altitude should be extinguished quickly.
Question 4: What should be paid attention to when conducting electric welding hot work? 1. Fire. 2. Anti-static spark (mainly grounding wire). 3. Hot work procedures should be handled in restricted areas. 4. Operated by a professional welder. 5. What to do before doing: safety technical disclosure.
Question 5: Write down the process of hot work? The flow of hot work (also called "fire-watching operation procedures") is generally 1). The production team fills in the "Application Form for Fire Prevention Duty Operation" -2) and sends it to the project leader. After the approval of the project leader -3) send it to the "safety production leader" and the "production team" for fire prevention inspection. According to the requirements of fire prevention regulations, check the specific situation of flammable and explosive materials and articles around the hot work site, especially carefully find hidden dangers, evaluate the degree of harm, eliminate hidden dangers and transfer to a safe distance. If it is impossible to move, prepare fire fighting equipment and personnel. -5) Complete the hot work of production tasks. In case of fire during hot work, the person in charge of safety should deal with it, such as strengthening observation, spraying water on the possible fire site to cool down, or suspending production to cool down before continuing the operation. -6) Observation after operation. The person in charge of production safety should instruct the personnel of the security department to be responsible, especially the hidden danger parts should be observed frequently on the spot, and the fire should be reported and disposed of in time-7) See that the fire task is completed. There is a summary evaluation of the safety production department. The report should be returned to the project manager and production team, and the data should be saved for future reference.
The "fire watching" operation here means that in the process of manufacturing or repairing metal structures, there are inflammable and explosive materials and articles around, but it is still necessary to use technical means such as electric welding, oxyacetylene welding, gas cutting (commonly known as "wind welding" and "wind cutting" in the south) and carbon arc gouging to carry out high-temperature open flame operation with great danger. Because this kind of operation is easy to cause fire, causing losses to enterprises and injuries to employees, although there is no unified regulation in the country, they have successively formulated the Regulation on Watching Fire Operation (Hot Work), which has coordinated and solved the contradiction between production and safety, strengthened the management of safety production, effectively reduced the fire accidents in the production site, and become one of the important systems of enterprise safety production, which is a great creation from practice.
The implementation of "Operation Rules for Watching Fire" in the production process has been included in the requirements of the process rules, but the repair of large metal structures with comprehensive functions is often different, so it is difficult to fully understand "Operation Rules for Watching Fire" in advance. It will delay the time to declare hot work, and the team is often reluctant to declare, so more people should be declared by the person in charge of production safety and give necessary support.
With the "Regulations on Watching Fire", everything is unsafe in production, and the functional requirements of metal structures are ever-changing. Fire is a toothless tiger, which is hard to prevent. Actively cultivating and using safety production cadres is an important guarantee for enterprise safety and a profitable cause.
Question 6: What permit must be obtained before hot work? All hot work carried out in the no-fire area must obtain a hot work permit.
The hot work permit shall clearly indicate the grade of hot work, the validity period of hot work, the applicant, the detailed location of hot work, the work content, the means of hot work, the safety and fire prevention measures, the sampling time, the sampling location, the analysis results, the start time of each hot work, and the signatures and opinions of the responsible persons and approvers at all levels.
Hot work is divided into three levels according to the fire risk in the operation area: super, first and second. Tools used in hot work generally refer to electric welding, gas welding (cutting), blowtorch, grinding wheel, electric drill, etc.
Question 7: What should be paid attention to when carrying out hot work near chemicals (1)? Are the tools and equipment used by the hot work executors intact?
(2) Whether flammable, explosive, toxic and harmful substances remain in the hot equipment itself, whether the results of sampling analysis and explosion measurement are qualified, whether there is a dead angle, and whether to add a blind plate for isolation.
(3) Whether the surrounding environment of hot work is qualified. Whether the floor drain, sewage well, trench and cable trench are blocked as required; Whether there are leakage points around the vent valve and condensate drain valve (minimum radius is 15m).
(4) The hot work examination and approval personnel shall strictly check, go deep into the hot work site before examination and approval, and confirm that there is no fire hazard before examination and approval.
(4) Strengthen the special role of thermal guardian.
When hot work is carried out near chemicals, it should be determined in advance which chemicals are flammable and explosive and which chemicals will produce toxic and harmful gases. Please put it in a safe place. There should be a certain distance between chemicals and hot work to prevent fire.
Prepare protective equipment and gas mask.
The hot work executor does not know the surrounding conditions of the hot work site and cannot work blindly. No hot work is allowed without measures to prevent sparks from splashing; Hot work is not allowed on pressure equipment and pipelines; When the welder has no certificate and no formal welder is present for technical guidance, hot work is not allowed. Pay attention to protection when adding blind plates to prevent poisoning and scalding accidents. When the temperature is high, keep the fire escape unblocked to avoid materials and machines occupying the fire escape. If necessary, please ask firefighters to conduct on-site monitoring and reinspect the test results.
Another key point is to place gas detection equipment. In case of hot work and the gas detector gives an alarm, please start hot work immediately, indicating that dangerous gas is generated. There are many gas detection equipments at home and abroad. Let me give you a simple example;
GQB-200A7 mobile area detection alarm is a mobile area detection alarm product launched by Harbin Dongfang Alarm Equipment Development Co., Ltd., which is mainly used in dangerous places such as maintenance, construction, hot work and emergency rescue. This product integrates sensing detection technology, wireless information transmission technology, wireless information encryption technology and Internet of Things technology, and applies five patented technologies. It has the advantages of convenient carrying, high detection speed and high detection accuracy, and has a wireless acousto-optic alarm system based on the concept of Internet of Things, covering 500 meters (visible) at the farthest. This product can set up an alarm network by wireless way, and truly realize alarm monitoring, real-time alarm and alarm positioning; Adhering to the people-oriented safety supervision concept: the first time to find the danger, the first time to evacuate.
Question 8: In order to ensure the safety of hot work, what requirements should be met by hot work on the construction site? Hot work refers to temporary work that may produce flames, sparks and hot surfaces by using alcohol stove, kerosene stove, blowtorch, grinding wheel, electric drill and other tools. From the statistical data, it is found that a large number of fires in the construction site are caused by hot work, with too many hot work, inadequate hot work management, careless hot work, and flammable and combustible substances around the hot work site being ignited.
In order to ensure the safety of hot work, hot work on the construction site shall meet the following requirements:
(1) Before hot work on the construction site, hot work personnel shall apply for hot work. The application for hot work shall at least include the personnel, content, place or place, time, working environment and fire fighting and rescue measures for hot work;
(2) After receiving the application for hot work, the issuer of hot work permit shall go to the site for inspection and confirm the implementation of fire prevention measures for hot work before issuing the hot work permit;
(3) Hot work personnel shall have corresponding qualifications and hold relevant certificates according to relevant regulations;
(4) Before hot work such as welding, cutting, baking or heating, clean up the combustible materials on the job site; Combustible materials that cannot be removed at the work site and its vicinity shall be covered or isolated with noncombustible materials;
(5) When arranging the construction work, it is advisable to arrange the hot work before the construction work using combustible building materials. If it is really necessary to carry out hot work after the construction operation using combustible building materials, reliable fire prevention measures shall be taken;
(6) It is forbidden to directly carry out hot work on combustible materials of * * * *;
(7) Fire fighting equipment shall be provided for hot work such as welding, cutting, baking or heating, and a hot guardian shall be set up for on-site monitoring, and a guardian shall be set up for each hot work site;
(8) When the wind force is above level 5 (including level 5), outdoor hot work such as welding and cutting shall be stopped;
(9) After hot work, the operator should check the site and confirm that there is no fire danger before leaving.
I hope I can help you!
Question 9: Briefly describe the protection, subject content and application scope of hot work 1.
1.65438+
This system is applicable to the safety management of hot work in inflammable and explosive areas (including external construction) of the company.
2. Reference documents
People's Republic of China (PRC) Fire Protection Law
Regulations on the Safety Management of Hazardous Chemicals
3, management functions and responsibilities
3. 1 The company's security department is responsible for examining and approving the first-and second-level fire safety measures, and conducting supervision, inspection and management on the spot.
3.2 Each hot work unit shall be responsible for the safety management of hot work.
4, management content and requirements
4. 1 division of no-fire zone
4. 1. 1 liquid chlorine station and tank farm, all storage facilities and pipelines.
4. 1.2 production area, including ice room and tank farm, Grignard process, chlorination process, sublimation process and fine drying and packaging process.
4. 1.3 All raw material facilities and transportation pipelines of the company.
4. 1.4 All flammable and explosive medium pipelines of the company.
4. 1.5 Various materials, materials, spare parts for equipment and office supplies in the warehouse.
4.2 Division of Level 3 Hot Work Scope in No-fire Zone
1 level hot work scope
(1) Company's raw material tank farm, main pipeline (including liquid chlorine, chloroethane, benzene, furfural and other pipelines) and its auxiliary devices.
(2) Grignard section batching tank, reaction kettle, tank farm, vacuum buffer tank and conveying pipeline.
(3) Tank farm of chlorination section, reaction kettle, hydrolysis kettle, extraction kettle and conveying pipeline.
(4) Sublimation section tank farm, reaction kettle, centrifuge, vacuum buffer tank, waste liquid recovery tank and conveying pipeline.
(5) Distribution area of ice machine room, liquid ammonia tank, conveying pipeline and valve.
4.2.2 Scope of Secondary Hot Work
Handling, auxiliary equipment and pipelines in the fine drying and packaging workshop.
Hardware library, finished product library,
4.2.3 Three-level hot work scope
Flammable and explosive places, other hot work places in the fire-forbidden area except for Class I and II hot work scope.
4.3 Management requirements
4.3. 1 Class I hot work shall be applied by the hot work unit to the environmental protection department of the company 1 day in advance, and shall be signed by the fire department, the factory director or the chief engineer.
4.3.2 The leader of the hot work unit shall apply to the factory safety department for secondary hot work, and the factory safety department shall report it to the competent leader of the company for approval.
4.3.3 The person in charge of the third-level hot work shall apply to the unit leader for approval.
4.3.4 After the hot work permit is approved, it shall be handled by the person in charge of the hot work unit or the person in charge of the hot work project, and the hot work safety technical measures must be formulated.
4.3.5 For first-class hot work and large-scale complex hot work projects, a special meeting must be held in advance to study and formulate reliable construction measures and schemes, and when necessary, a sketch of on-site construction should be drawn, and the production, technology, equipment and safety management personnel attending the meeting should conduct in-depth on-site investigation to understand the actual situation on site.
4.3.6 During the first-class hot work, the company's production, process technology and equipment management personnel shall coordinate on the spot, and the company's security department shall check whether it meets the safety requirements on the spot, check and implement the safety measures for hot work, and check with the fire department and * * * to be foolproof.
4.3.7 During secondary hot work, the leaders of the hot work unit shall confirm that the on-site inspection of the personnel of the company's security department meets the safety requirements, and the leaders of the hot work unit and the * * * safety officer shall be responsible for the implementation and management of the on-site hot work safety measures.
4.3.8 During level-3 hot work, the leaders of hot work units are responsible for the implementation and management of hot work safety measures, and the on-site monitoring safety measures of unit * * * safety personnel are put in place.
4.3.9 Hot work units shall carry out hot work in strict accordance with hot work contents, hot work time, hot work place, location and hot work safety technical measures.
4.3. 10 The hot work unit must hold a certificate for hot work, and the welder has the right to refuse hot work without obtaining the issued hot work permit. It is forbidden for any unit leader to command unlicensed hot work in violation of regulations. Once unlicensed hot work is found, the relevant parties and responsible persons will be dealt with seriously, and those who caused the accident will be held accountable.
4.3. 1 1 For peripheral construction and hot work of other units, the team of the unit where the equipment and management are located shall check the hot work permit and allow hot work according to the hot work permit and the specified project, place and time. Operation without a license is strictly prohibited, and it shall be reported to the factory safety department immediately.
4.3. 12 Hot work shall be carried out in accordance with the relevant provisions of Safety Maintenance Management Standard and Dangerous Work Management Standard.
4.4 Requirements of technical measures for hot work
(1) Before hot work is carried out on pipelines and equipment of flammable and explosive gases and liquids, they must be cut off from the production system and the blind plate should be blocked to reliably cut off flammable and explosive media ... >>