1. 1 Introduction of station pressure regulation process
Attached is the local process flow chart of the pressure regulating area, in which the equipment to be operated is numbered.
1.2 work preparation before pressure regulation 1.2. 1 tool preparation
Explosion-proof adjustable wrench, two sets of gloves and two sets of protective equipment. 1.2.2 work preparation
(1) Wear labor protection articles, including anti-static clothing, anti-static shoes, safety helmet, etc. (2) Check whether mobile phones, computers and other devices that are easy to generate static electricity have been placed in safe areas, and check whether the working environment is safe and meets the working conditions;
(3) Before entering the station, touch the electrostatic touch release facility with your hands to release static electricity; (4) Check whether the pressure regulating tools such as explosion-proof wrenches are fully carried;
(5) Check whether the pressure gauge, liquid level gauge, thermometer, combustible gas detector and safety valve of the storage tank are in normal working condition.
(6) Check whether the pipeline valves, pressure gauges and safety valves are in normal working condition. (7) Prepare explosion-proof tools 1.2.3LNG tank gas supply process:
1. Confirm that all valves to be supplied to the storage tank are closed except the root valve and emergency cut-off valve. 2. Open the liquid inlet valve and pressurized liquid and gas valves at the lower part of the storage tank, and check whether the valves before and after the pressurized gasifier are open.
3. Open the low-temperature shut-off valve in front of the gasifier, the normal-temperature flanged ball valve behind the gasifier and the pressure regulating system.