2022-09-13 11:14:12
Equipment installationSafety requirements for commissioning
Safety in RunTay large-scale equipment installation and commissioning includes safety during installation, trial operation, and the safety status of the equipment itself. The safety of equipment installation and trial operation should be carried out according to relevant safety requirements for construction and operation. Here, only the requirements for the safety status of the equipment themselves are analyzed. After installation, check each item for safety and whether its functions meet requirements. Security items viewed include both static and dynamic aspects. Static viewing items are performed when the equipment is not operating, such as surface safety and safety protection distance; For example, the safety functions of control systems, the safety protection functions of moving parts, the operational function and reliability of safety protection equipment, and the generation of dust, toxins, flammables, and other substances during equipment operation.Equipment installationSafety inspection during commissioning: In addition to referring to the above safety requirements for equipment purchase, the following safety requirements should also be checked.
Control equipment should ensure that when the power source is abnormal (occasionally or artificially blocked or altered), no risk occurs, and even if the system fails or is damaged, it will not cause damage. When necessary, the control equipment should be able to actively switch to backup power sources and backup equipment systems. Active or semi-active control systems should be equipped with necessary protective devices to prevent control command disorder. Additionally, each device should be equipped with a manual control device that can be operated independently.
For complex production equipment and critical safety systems, active monitoring devices should be equipped. Control devices for critical production equipment should be located so that operators can see the entire operation of the equipment. For certain production equipment whose entire view cannot be seen during startup, a startup warning signal device should be installed, and the warning signal device should have a sufficient alarm time. Conditioning equipment should use active interlock devices to avoid misoperation and errors in active adjustment and active operation of lines (pipes).
Key components within the control system, such as control valves, must meet the reliability target requirements. Control equipment and clutches, braking devices, and interlocking devices as safety technical measures should have outstanding reliability and meet the reliability targets specified in their product specifications. Emergency switches are used for: (1) When accidents occur or equipment malfunction, it is impossible to quickly stop the operation of the parking switch; (2) You cannot use a single switch to agilize several Motor units that can create risk; (3) Blocking a unit can lead to other risks; (4) The full view of the controlled device cannot be seen from the control console.
Emergency switches must have a sufficient quantity and should be quickly and danger-free at all control and feed points. The shape of the emergency switch should differ from that of a standard switch, and its color should be red or have a distinct red marking. If the remaining energy of production equipment may pose risks after being parked by emergency switches, it is necessary to have synchronized slowing or anti-reverse operation devices.
