The first-level alarm of the body detector should be implemented on the spot within 5 to 10 minutes!
How to deal with the first-level and two-level alarms of gas detectors?
In view of the fact that poisonous gas, high-temperature and high-pressure combustible gas is extremely harmful once leakage occurs, when a leakage accident occurs in the factory, in order to prevent the operator from blindly rescuing and causing secondary injuries, the operator must immediately pass through the process conditions and conditions after receiving the alarm signal. Control the change of instruments to judge the leakage situation, evaluate the degree of leakage, and initiate corresponding emergency response measures according to the leakage level, and notify the personnel in charge of the area or facilities and equipment to implement on-site. The personnel in the position should wear labor protection articles and carry necessary protective equipment No less than 2 personnel are required to investigate and control the leakage in time. The disposal of flammable or toxic gas alarm information is subject to closed-loop management. Operators and managers must keep records of alarms and disposals, and regularly analyze various alarms and disposals that occur. Alarms must not be eliminated at will.
The first-level alarm of flammable or toxic gas indicates that the toxic gas in the air of the workplace has reached or exceeded the national occupational health standard. The on-site implementation of the post personnel should be completed within 10 minutes. In actual production, in order to find the leakage point of flammable and toxic gases as early as possible and accurately, when the detector is equipped with an integrated sound and light alarm, the alarm activation of the alarm can adopt the first-level alarm value. The on-site implementation of personnel at the first-level alarm event post on the platform where people are stationed should be completed within 5 minutes.
The second-level alarm of flammable or toxic gas warns that a large amount of toxic gas has been released in the site, which has reached a dangerous level. The person in charge of the device, production dispatching and fire department should be notified by phone, and emergency rescue measures should be initiated quickly. The staff who enter the toxic gas secondary alarm site must wear positive pressure air respirators to ensure their own protection. There are no less than 2 people, and the post personnel wearing positive pressure air respirators are isolated in the alarm area according to the alarm point. , to warn irrelevant personnel not to enter, and at the same time evacuate relevant people in time, and investigate and deal with the leakage point in time and deal with it. Emergency rescue measures should combine flammable or toxic gases and their toxicity, personnel conditions, accident consequences, processes and equipment, and meteorological conditions. On-site emergency rescue measures for personnel in the second-level alarm event post should be effectively activated within 5 minutes. The confirmation time of the second-level alarm event on the unmanned platform should be completed within 10 minutes, and ships, helicopters, etc. should be dispatched in time for on-site implementation.
The alarm signal of the toxic gas alarm controller can be maintained and manually eliminated. Manually stop the alarm is allowed only after the treatment measures are confirmed. The alarm controller should have fault diagnosis and alarm functions such as disconnection, detector failure, and power supply undervoltage. The alarm signal should be different from the alarm signal of flammable and toxic gases. When a fault alarm occurs, the instrument maintenance personnel should be notified immediately for on-site disposal.
The combustible gas alarm controller shall be able to directly or indirectly receive alarm signals from combustible gas detectors and other alarm trigger devices, send out combustible gas sound and light alarm signals, indicate the alarm location, record the alarm time, and keep it until manually reset . The combustible gas alarm signal should be able to be eliminated manually, and when the combustible gas alarm signal is input again, it should be able to start again.
For special places where it is known that the concentration of toxic gas in the air often or continuously exceeds the alarm setting value, it is not necessary to set up fixed toxic gas detection alarm points. If it is necessary to enter the workplace due to work, relevant personnel should be equipped with portable toxic gas detection and alarm devices, positive pressure air respirators and chemical protective clothing, and other gas masks are not allowed.
When there are gas alarm signals, fault signals, and shielding signals input, the alarm controller shall send information such as time, location, name, signal category and location of the input signal to the graphic display device in the fire control room within 3s and have a transmission status indication. And it has the functions of information remote transmission, continuous recording, accident warning, information storage, etc.; the storage time of recorded electronic data is not less than 30 days.
