Inventory of gas detectors in the use of the wrong operation
Gas detectors in the use of the wrong operation
Wearing a mask for the gas detector: Because of the construction work next to the gas detector, the employees of the enterprise are afraid that the dust will affect the function of the gas detector, so they put on a mask for the gas detector to prevent dust.
Wrapping the instrument with plastic cloth: In order to avoid the gas detector from being corroded, the enterprise wrapped the whole detector with plastic cloth, resulting in the detector losing its alarm function completely.
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Incorrect installation position of the instrument: In the daily application, there are many safety accidents caused by incorrect installation position of the instrument and incorrect operation of the staff.
Irrational instrument settings: the installation height of the instrument, the choice of sensor type, range and alarm value settings are not standardized, may not play a monitoring role.
Unplugging the power supply after the alarm of the instrument: Some employees think that the alarm sound of the alarm is too loud, so they unplug the power supply when the alarm is on. Plugging and unplugging the power supply when the gas detector is alarming will produce electric sparks, which can easily cause fire, explosion and other accidents.
Gas detector alarm value setting error, installation height is not appropriate, frequently cut off the alarm power supply, etc., is a common safety hazard in chemical enterprises. Some enterprises in the control room alarm more, miscellaneous, chaotic, some enterprises have installed the alarm but the shape of a virtual shell ...... such as all kinds of things, behind the reflection of the enterprise gas detector management chaos, lack of professional knowledge, responsibility is not clear and not implement the problem.
Gas detector maintenance requirements
1. should be fixed instrument for routine inspection, inspection period of not more than one month, the inspection content mainly includes:
a) Whether the appearance is intact;
b) Whether the function of the rain cover of the detector is perfect;
c) Whether the indication is normal;
d) Whether the connection parts are loose;
e) Whether the detector parts are blocked;
f) Whether the secondary instrumentation and specialized control system operate normally.
2. The control and alarm units of fixed instruments should be inspected to ensure that their lights, alarms and circuits are functioning properly, and the inspection period should not exceed 3 months.
3. Each inspection should be recorded and filed, and problems found should be dealt with immediately.
4. Fixed instrument failure should be immediately arranged to the scene to confirm that the failure period should be a good alternative program and safety measures to ensure personnel safety.
How to rectify the gas detector installation and use of chaos?
As a hidden danger rectification item, the new gas detector should strictly fulfill the equipment change procedures.
Risk analysis should be carried out before the change, choose the right type of gas detector according to the nature of the gas to be detected, determine the correct installation location according to the specific gravity of the gas; verify whether the range of the detector, the alarm set value is the same as the alarm threshold of the medium to be measured, and the instrumentation range and the alarm threshold is not set correctly, and will not be able to play the role it should play.
Equipment installation should also be completed after the project acceptance, check whether the equipment and facilities are intact, test its accuracy and effectiveness.
After the acceptance of the changes should also improve the equipment ledger and other safety information in a timely manner, and carry out training for the relevant post personnel.