Thread Content
1. Reactor and reactor 1) Abnormal noise from the reducer 2) Excessive oil stains on the reducer or frame 3) Plastic fan blades of the reducer are melted and deformed 4) Machine seal and reducer are short of oil 5) Gasket leakage 6) Anti-static grounding wire is damaged and not installed 7) Safety valve is not inspected annually, leaks, and no account is established 8) Thermometer is not inspected annually, damaged 9) Pressure gauge is not inspected annually, is damaged, or is blocked by materials 10) The key reactors do not use dual sets of temperature and pressure displays, record alarms 11) The bursting disc is not replaced when it expires, leaks, and no account is established 12) The valve installed under the bursting disc is not opened 13) There is an explosion hazard. The reactor is not equipped with a bursting disc 14) The temperature is too high, the stirring is interrupted, etc. There is abnormal pressure increase or charging 15) The bottom valve is easily blocked when discharging 16) Stainless steel or carbon steel kettles have acid corrosion 17) Overload operation, such as when the loading amount exceeds the specified limit18) The enamel in the enamel kettle is damaged and is still used in corrosive, flammable and explosive places19) The liner of the reactor is corroded and damaged at the steam inlet of the jacket20) The pressure vessel has exceeded its service life, has poor manufacturing quality, and still leaks after multiple repairs21) The pressure vessel has no nameplate22) The number mark is missing or unclear23) The reactor with explosion sensitivity cannot be effectively isolated24) Safety checklist has not been formulated for important equipment 25) Important equipment lacks spare parts or machines 2. Storage tanks, tank farms, and tank trucks 1) Liquid level gauges are blurred or damaged or blocked 2) Electrostatic grounding wires are loose or not connected 3) Leakage at flange gaskets 4) High-level storage tanks such as small platforms cannot be effectively fixed 5) Safety liquid seal levels do not meet requirements 6) Normal pressure storage tanks are used under pressure 7) The loading volume exceeds the specified limit 8) The non-temperature storage tank is not equipped with a thermometer 9) The container has cracks and is still in use 10) Frequent exposure to alternating loads of vacuum and nitrogen causes damage to the storage tank 11) Low-boiling solvent or liquefied gas storage tanks are exposed to direct sunlight 12) Outdoor storage tanks are at risk of being hit by transportation vehicles 13) The holes in the cofferdam of the dangerous goods tank area are not blocked 14) The protective embankment of the hazardous chemicals tank area is not tightly sealed, and drainage holes are opened arbitrarily 15) The stop valve leading to the drainage pipe is in an unsafe state such as normally open. 16) The outlet pipeline of flammable or corrosive materials in the hazardous chemicals tank area does not have hanging pressure spring compensation measures on its bracket, or a flexible connecting short pipe is directly used. 17) The hazardous chemicals tank area does not have various warning signs such as no mobile phones, no fire sources, height and speed limits. 18) There are no leaks, feeding operation records and daily inspections in the hazardous chemicals tank area. 19) Tractors enter the hazardous chemicals tank area at will. 20) There are open flames or forest fires around the dangerous goods tank area 21) The operation room of the dangerous goods tank area uses electric stoves, electric tea kettles, electric hot plates, etc. illegally. 22) The tanker has no grounding device at the loading and unloading location. 23) There are no measures to prevent operators from falling from the tanker. 24) The tanker enters the tank area without an effective flame arrester and the vehicle is in unqualified condition (the lighting is damaged or the brake fails). 25) The safety accessories (pressure gauge, thermometer, safety valve) of the tanker tank have no inspection date or are invalid 26) The tanker tank does not indicate the next inspection date of the pressure vessel 27) There is no electrostatic drag chain, anti-virus equipment or valve leakage on the tank 28) The tanker is not grounded for more than 10 minutes before and after unloading 29) When the tanker is unloading, the driver and escort leave the unloading site, and there is no on-site monitoring personnel 30) Use open and splash-type unloading 31) When unloading, the storage tank exceeds the standard liquid level or is full of material and overflows 32) When unloading vinyl chloride tank trucks, leaks from hoses or flanges 33) When vinyl chloride is transported and fed, the tank is full 34) When the tank truck is not fully loaded, it is transported and unloaded multiple times in the factory 35) The unloading vehicle is stalled and handbraked or the vehicle is started midway during unloading 36) Engage in unloading operations when high-intensity lightning and lightning strikes are frequent 37) There are no two grounding points in the oil tank. 38) When loading and unloading gasoline and toluene, the operators did not wear anti-static work clothes and anti-static shoes. 39) There are no accident cofferdams and emergency spray dilution facilities in the storage areas of liquid ammonia and other storage tanks. 40) There are no emergency spray and eyewash facilities on site. 41) There are no measures to prevent mispacking of materials, such as loading ethyl acetate into gasoline tanks. 42) Welding while standing on gasoline barrels. 43) Cutting gasoline barrels or welding storage tanks without cleaning 44) Liquid ammonia and vinyl chloride storage tanks are overfilled 45) When tank trucks are unloading, block fire passages and encroach on access roads 46) The collector leaves the unloading site 47) Iron, plastic and other tools that are prone to sparks are used at the loading and unloading site 48) There are no operation records for material storage tanks sent from the tank area to the workshop 3. Condensers and reboilers 1) Leakage caused by corrosion, aging gaskets, etc. 2) The temperature of the material after condensation is too high 3) The heat exchange medium layer is clogged with silt and microorganisms 4) The high-temperature surface is not protected 5) When cooling high-temperature liquids (such as 150°C), the cooling water inlet and outlet valve is not opened, or the cooling water volume is insufficient 6) The evaporator, etc., heats up rapidly when it is first used 7) The heat exchanger does not take anti-shock measures into account, causing the connecting pipes to loosen and leak due to vibration 4. Pipes and fittings 1) After the pipeline is installed, the internal welding slag and other foreign objects are not cleaned. 2) The sight glass glass is not clean or damaged. 3) The sight tube material is not suitable for pressure and temperature resistance. The sight tube is improperly installed. 4) The sight tube is cracked or used under pressure for a long time. 5) The anti-static grounding wire is damaged. 6) The pipe, flange or bolt is seriously corroded or cracked. The color marking of the pipelines is unclear 11) The valves connected in series for different materials are not blinded during debugging 12) Abandoned pipelines are not cleaned in time 13) The installation position of the pipe valve is low, easy to hit the head or difficult to operate 14) No protective measures are taken for corrosive material pipelines, flanges and other leaky places 15) There is the possibility of water, nitrogen, air, steam, etc. entering the material pipeline 16) Iron barrels or plastic barrels of flammable and explosive materials are placed next to high-temperature pipelines 17) The material selection of pipes or pipe fittings is unreasonable and easy to corrode. 18) The glass tube liquid level gauge has no protective measures. 19) The protective metal mesh is not installed on the sight glass that may explode. 20) The check valve cannot move flexibly or fails. 21) The electric valve loses power and the pneumatic valve stops gas. 22) Pressure pipelines such as hydrogen are not regularly maintained or operated with illness. 23) When using pressure pipelines, the operators are untrained or unlicensed. 24) Maintenance personnel are not qualified to repair or modify pressure pipelines. 25) The welding quality of pressure pipelines is poor, with welding defects such as undercuts, pores, slag inclusions, and incomplete welding. 26) Safety accessories are not installed on pressure pipelines in accordance with regulations or safety accessories have not been verified beyond the expiration date. 27) Files and operating procedures have not been established for pressure pipelines. 28) Glass-lined pipelines are impacted by steel pipes. 29) Existing pipeline valves are still used after the production process medium is changed, without considering material adaptability. 30) Nitrogen pipe and air pipe are connected in series 31) Brine pipe and cooling water pipe are connected in series 5. Transfer pump and vacuum pump 1) Pump leakage 2) Abnormal noise 3) Coupling without protective cover 4) Pump outlet is not equipped with a pressure gauge or check valve 5) When the pump and pipe are not used for a long time, the liquid in the pump and pipe is not drained, causing corrosion or freezing 6) When the positive displacement pump is running, the outlet valve is closed or a safety return valve is not installed 7) The pump inlet diameter is small or the pipeline is long or has many turns 8) The installation height of the centrifugal pump is higher than the suction height 9) No anti-static belt is used 6. Centrifuge 1) Filter the solvent without filling it with nitrogen or the nitrogen pipe is clogged or there is no flow meter on site to display 2) When a centrifuge is required to filter the solvent in the fine drying package, an oxygen meter and alarm device are not installed 3) Quickly brake or use auxiliary tools (such as iron rods, etc.) to brake 4) The centrifuge is not effectively grounded 5) Anti-static belts are not used in the explosion-proof area 6) Abnormal vibrations occur when the centrifuge is running 7. Double cone 1) No guardrails and safety interlocking devices 2) Personnel climbs into the double cone to replace the vacuum bag 3) The transmission belt is not protected 4) Shaft seal leaks 5) The vacuum pipeline is blocked or the vacuum valve is not opened during use 8. Gas cylinder 1) The cylinder is not equipped with a bottle cap or anti-shock ring 2) When hydrogen cylinders are transported and stored in summer, there is no sunshade measure, resulting in exposure 3) Some gas cylinders have exceeded the annual inspection period 4) When acetylene cylinders and oxygen cylinders are used at the same time, the safe distance does not exceed five meters 5) Use catalytic gloves to close the hydrogen cylinder valve 6) Knock and collide with the gas cylinder 7) After the gas cylinder is used, the air pressure is less than 0.05Mpa 8) The gas cylinder set, pipeline connections and valves are damaged 9) When the hydrogen cylinder is used, the anti-static device is not used or is damaged 10) The gas cylinder has no anti-falling measures 11) There are trenches and secret passages in the storage place. 12) The storage place is not ventilated or poorly ventilated, or corrosive gases have entered. 13) There is a lack of fire extinguishing equipment. 14) Acetylene cylinders are used upside down. 15) The color of the cylinder is unclear.