Infrared thermal imaging online monitoring method and system of petrochemical selective key equipment

Abstract

The invention provides an infrared thermal imaging online monitoring method and system of petrochemical selective key equipment. The method comprises the steps of: determining selective key equipment and allowable temperature change range thereof, determining the accident potential temperature change rule of the selective key equipment, setting alarming condition according to the accident potential temperature change rule, arranging at least one infrared thermal imaging terminal at the periphery of the key part of the petrochemical selective key equipment, acquiring the video information and temperature data of the key part in real time and transmitting to an infrared thermal imaging monitoring client by signals for automatic analysis and real-time displaying, and informing an alarming device of alarming according to the set alarming condition, and the like, wherein an infrared thermal imaging online monitoring system of the petrochemical equipment is composed of the infrared thermal imaging terminal, a signal transmission module, an infrared thermal imaging monitoring client and the alarming device. By adopting the method and system, the inside conditions of the key part of the petrochemical equipment can be monitored, and the potential hazard is alarmed.

Description

【Technical field】 [0001] The invention relates to an infrared thermal imaging online monitoring system and method for petrochemical equipment, in particular to towers, heat exchangers, reactors, storage tanks, chemical process pumps, mechanical equipment, torches, and process pipelines used in petrochemical equipment Infrared thermal imaging online monitoring system and method for optional key equipment such as valves, heating furnaces, warehouses, and storage yards. 【Background technique】 [0002] In the petrochemical industry, because petrochemical equipment is in contact with dangerous goods such as flammable and explosive oil or natural gas, accidents are prone to occur, and a sudden production accident may cause equipment paralysis, huge property losses, and even casualties. Continuous temperature monitoring and real-time reporting of temperature trends in key parts have become maintenance problems that need to be solved urgently. [0003] After long-term research by t...

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Problems solved by technology

[0006] 2. The valve gasket in the hot oil pump room of a petrochemical company was unstable, causing hot oil to spray out from the gasket, and the hot oil burned automatically after encountering air, resulting in a fire accident

[0007] 3. The burning torch of a petrochemical company is monitored by visible red light imaging technology. However, no matter whether the torch is burning or not, the current industrial TV system cannot give an alarm, and only human judgment can be made.

Although the storage tank has undergone internal anti-corrosion, due to the continuous operation of the floating plate, the internal anti-corrosion layer will inevitably be damaged, and the iron inside the damaged anti-corrosion layer will encounter sulfide in the medium to produce ferrous sulfide, which will produce ferrous sulfide. The process is a heating process, and the temperature rise accelerates the reaction rate of ferrous sulfide, which eventually leads to the temperature rise and the medium, resulting in the occurrence of an explosion accident.

[0009] 5. A large-scale petroleum external floating roof storage tank in a petrochemical company, due to lightning igniting combustible gas at the sealing ring, resulting in a fire

Although oil storage tanks are usually equipped with a grating optical cable temperature sensing alarm system, since the grating optical cable temperature sensing alarm system is a contact type temperature sensing alarm system, it needs to be in direct contact with the sealing ring, and the environment at the sealing ring is poor, and corrosion will cause the alarm system to fail. Failure, but unable to call the police in time

[0010] 6. In a petroleum internal floating roof storage tank of a petrochemical company, a fire broke out due to lightning igniting combustible gas at the sealing ring

The oil internal floating roof storage tank belongs to the O zone according to the specification, and the grating optical cable temperature sensing alarm cannot be installed, and the environment is more corrosive, and the initial fire cannot be alarmed.

Because the fire could not be detected early, it eventually led to a major accident

[0011] 7. The hydrogen production device of a petrochemical enterprise is unstable when using a low carbon-hydrogen ratio; using a high carbon-hydrogen ratio will easily cause corrosion of pipeline equipment

[0020] It can be seen that currently in the petrochemical industry, there is no method or device that uses infrared means to monitor petrochemical equipment to effectively monitor and predict the internal temperature of key parts of the optional key equipment of the petrochemical industry in real time, and to give an alarm.

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