What standards should we refer to when writing safety technical regulations?

1． Acetylene station operators must undergo safety technical education, understand relevant safety knowledge, master preventive measures and safe operation procedures, and must pass the examination before they can operate. 　　2. The establishment of an acetylene station must be reviewed and approved by the relevant superior department. Acetylene generating devices with a gas supply exceeding 10 cubic meters per minute should have an independent station building. Station buildings and warehouses should be placed within lightning protection areas. 　　3． Mobile acetylene generators should pay attention to the safety of the installation site and should not be left lying around. If there is any of the following conditions, they should be avoided: 　　(1) Metal objects may form electrical circuits under electrical lines and driving cables. ； 　　(2) When the distance between high temperature source, spark splash point and open flame point is less than 10 meters ； 　　(3) Places where there are vibrations and possible strikes from objects ； 　　(4) There are float-type acetylene generators above or in front of the suction ports of air compressors and ventilators, which are prohibited from use indoors. 　　Electrical appliances or instruments that can produce sparks, such as electric clocks and telephones, are not allowed to be installed and used in acetylene stations (or acetylene generation rooms) and calcium carbide warehouses. Closed and explosion-proof equipment should be used. 　　4. When heating is allowed in the station building in winter, electric open flames are not allowed. Light tube radiators should be used to avoid dust accumulation and electrostatic induction, and should be at least 1 meter away from the acetylene generator. When the temperature is below 0°C, sodium chloride aqueous solution can be used to replace the water used in the generator and flashback preventer to prevent freezing. Frozen acetylene generator pipes can be thawed with hot water. Mobile acetylene generators should be shaded from the sun in summer to prevent high temperature and thermal radiation. 　　5. It is prohibited to use buildings that do not meet fire protection requirements as acetylene stations and calcium carbide warehouses, and the calcium carbide warehouse must not leak. The room should be well ventilated, but rotating exhaust devices (or hoods) should not be used. Natural ventilation should be used. 　　6. Operators must be able to use fire-fighting equipment such as carbon dioxide and dry powder fire extinguishers. Smoking is strictly prohibited indoors, and fire starters are not allowed inside the station. It is forbidden to bring water into the calcium carbide warehouse. Personnel inside the station are prohibited from wearing chemical fiber clothing and spike shoes. The indoor acetylene content should be checked regularly. 　　7. Before use, the safety devices, pipelines, valves and operating mechanisms of the acetylene generator should be checked. Only after they are confirmed to be normal can water and calcium carbide be added. 　　The water filled should be clean, free of impurities and oil. 　　8. Acetylene generators, flashback arresters and other accessories are prohibited from using red copper and alloys containing more than 70% copper. Silver soldering and copper soldering are prohibited during repairs. 　　9. The particle size and dosage of carbide blocks used in acetylene generators should comply with regulations. It is prohibited to put calcium carbide powder with a particle size of less than 2 mm and calcium carbide blocks with a size greater than 80 mm into the calcium carbide basket or process it in the calcium carbide slag pool. It is prohibited to store calcium carbide in the operating room. 　　10. When the equipment is running, the operator should pay close attention to the changes in pressure and temperature of various parts. If it is found that the reading of the pressure gauge rises suddenly or gas escapes from the safety valve, or if the pointer of the pressure gauge does not rise after starting for several minutes (it rises slowly in winter), the operation should be stopped and the fault should be eliminated. It is strictly prohibited to exceed the specified pressure and temperature. The explosion-proof diaphragm (sheet), pressure gauge, thermometer, water level gauge, safety valve, flashback arrester and water supply regulator must be sensitive and intact. Safety valves and pressure gauges should be calibrated regularly and sealed before use. 　　It is forbidden to replace the explosion-proof membrane (sheet) with a rubber pad. The explosion-proof membrane (sheet) should be updated once a week and inspected during each shift. 　　The water-sealed flashback preventer must be drained every shift and filled with water to maintain a certain water level. Rupture discs must be replaced at least once a year. 　　The flashback arrester should be placed vertically when in use. The flashback arrester can only be used by one welding (cutting) torch at each position. 　　The dry flashback arrester should be checked for blockage. If there is blockage, the fire-retardant element can be immersed in acrylic, cleaned, and blown dry with compressed air before use. 　　11. Acetylene pipelines should be made of welded seamless steel pipes and should be reliably grounded and inspected every shift. If the pipes are blocked due to freezing, only hot water or steam is allowed to melt them, and fire is strictly prohibited. 　　12. The laying of acetylene pipelines and their mutual positions with other pipelines and roads should comply with design safety specifications. It is prohibited to pass acetylene pipes through flues, ventilation ducts, canteens and living rooms, or lay them near fire sources or surfaces heated to above 500°C. They must not be laid in tunnels or trenches together with oxygen pipes and cables. 　　13. Acetylene equipment and pipelines should have dedicated personnel regularly checking for leaks. Fire testing is prohibited during inspection. Equipment and pipelines should be subject to regular water pressure and air tightness tests in accordance with test specifications. Inspection and adjustment of pressure devices and safety accessories should be done only after removing the carbide basket and taking measures to eliminate residual air. 　　14. Acetylene equipment, containers and pipelines should be filled with nitrogen and purged before starting fire for major or minor repairs. The purity of the nitrogen used should be greater than 98%. Only when the acetylene content of the purge port is lower than 0.5% can fire repairs be carried out. Approval from the relevant departments must be obtained in advance, and designated personnel should be assigned to monitor and take necessary fire and explosion prevention measures. 　　15. Large acetylene generators should be purged with nitrogen before and after feeding and after the pipeline is pressure tested. To prevent the mixture of air and acetylene from causing an explosion. The acetylene generator should turn on the acetylene before supplying gas.: Release Yan, close the air supply valve tightly, and only after the mixed air is eliminated can the air be supplied. When gentle tapping is required for generator feeding operations, only wooden mallets are allowed, and iron tools are prohibited. When feeding the drawer-type hopper of a large acetylene generator, measures should be taken to prevent sparking during the pulling and feeding process. 　　16. When the generator is temporarily out of service, the calcium carbide blue should be raised out of the water or the water inlet valve should be closed to stop the calcium carbide from generating gas, and then the outlet pipe valve should be closed to stop the acetylene gas output. 　　After the work is completed, including changing the calcium carbide, if the generator cover catches fire when the generator cover is opened, the cover should be closed immediately and the calcium carbide basket should be lifted out of the water. Only after it has cooled down can the cover be opened and water released. It is prohibited to release water immediately after closing the cover. 　　After the work is completed, the calcium carbide basket or excess calcium carbide should be taken out, the cover or drain pipe should be opened for ventilation, the calcium carbide slag and water should be drained, and the acetylene generator housing should be cleaned and kept clean. 　　17. Acetylene cylinder filling: 　　(1) Before inflating the cylinder, check whether the valve switches are correct and whether the pressure gauge is easy to use. Only after making sure it is correct can you inflate it. ； 　　(2) Care should be taken when loading the bottle clamp and opening and closing the bottle head to avoid sparks caused by the impact of iron objects. 　　When inflating, the room should be well ventilated. Operators are not allowed to leave their posts without permission. Air leakage should be eliminated in time to avoid excessive indoor acetylene content. ； 　　(3) Inflation is generally divided into two times. After the first inflation, it should be left for no less than 8 hours before the second inflation. When the ambient temperature is limited to 15°C, the filling pressure is below 1.58 MPa. If the ambient temperature is different, this shall prevail for conversion. ； 　　(4) During inflation, no additional gas cylinders are allowed, and the bottle wall temperature must not exceed 40°C. When the gas cylinder is intermittently inflated, the inflation speed should not exceed 0.8 cubic meters/min. During one-time inflation, the inflation speed should not exceed 0.6 cubic meters/min (except for forced cooling). The wall temperature of the bottle during the inflation process shall not exceed 40°C. Each bottle should be checked one by one. If any of the following conditions are found, inflation is strictly prohibited.: 　　1) Manufactured without review and approval ； 　　2) The paint color and lettering do not meet the regulations or are peeling off ； 　　3) Accessories are incomplete, damaged or do not comply with regulations ； 　　4) The remaining pressure in the bottle is lower than the corresponding value in the table ； Ambient temperature(℃)

This is our company’s format standard for writing process technical specifications. Content format for preparing process technical specifications for each product: 1. Overview of the device (process) (including product description, raw material specifications, design conditions, consumption quotas, three wastes treatment, etc.). in: 1. Product description: The chemical name and English name of the product, molecular formula, structural formula, properties, uses and product quality standards, etc. ； 2.Raw material specifications: Quality standards and physical and chemical properties of raw materials and semi-finished products ； 3.Design conditions: Basic production principles, chemical equations, process overview, etc. ； 4. Consumption quota: Raw material and energy consumption quota ； 5. Three wastes treatment 2. Process flow chart and brief description 3. List of operating conditions 4. Equipment list (including process, mechanical equipment, instruments, safety valves and others) and main equipment diagram 5. Device start-up and shutdown steps 6. Accident handling methods and device safety regulations This post was last edited by shizhiyong001 on 2009-3-11 13:40 ]