Is it necessary to install a flame detector on the burner?

It seems we haven’t seen any regulations on this matter, but from a safety perspective, it is feasible to install a flame detector!

Flame detection is necessary to prevent explosions caused by the accumulation of combustible gases in the furnace

For safety reasons, flame detectors must be installed; sometimes they even need to be dual. However, nowadays such detectors are already included in the construction of ordinary boilers.

Flame monitoring is essential! ! For safety reasons, it is also possible to monitor whether there is a flame in the furnace during ignition; therefore, it should be installed! ! However, the relevant standards are not very clear.

Modern fuel and gas burners are equipped with flame detectors such as ultraviolet sensors and probe rods, and from a safety perspective, it is necessary to have such flame detection systems in place.

We haven’t installed flame detectors on our industrial furnaces. Personally, I think it’s not necessary to install them if there are many burners; however, it’s advisable to install flame detectors when the number of burners is small, especially in cases of fully automatic combustion

Flame detection devices are essential; firstly, to ensure the safe and stable operation of the furnace, and secondly, to enable the control room to obtain more accurate data on the conditions inside the furnace, thereby facilitating scientific management and energy savings!

Flame detection is essential, both from a safety perspective and for the purpose of optimization and improvement

There aren’t any strict rules, but it’s definitely better to have it installed than not!

In fact, whether a flame detector is installed in the burner is not decisive; what matters is the process requirements. The reasoning behind whether to install a flame detector or a permanent light is similar; generally, only one of these two devices is installed. Let’s first talk about the basic function of flame detection: it mainly sends a signal indicating whether there is a flame or not to the control center, so that further actions can be taken (such as shutting off the system, restarting the ignition, or shutting down the furnace). It is often used in interlock systems. Generally speaking, in gas-fired burners that have multiple burners, a pilot light is installed to initiate ignition and ensure that there is always a flame inside the furnace. (The cost of installing flame detectors is too high, and signal interference is likely to occur.) If the number of burners is small, but there are fluctuations in gas pressure or unstable combustion, a pilot light is usually used instead (the reason is simple: with a flame detector in place, if the flame goes out the system will shut down immediately, and such a situation would be unacceptable for the system). For newly installed burners, if automatic ignition is desired, or if the flame signal is to be used in interlocks, or if functions such as DCS control are needed, a flame detector is generally required.

There are many types of flame detectors, as well as numerous manufacturers. The most well-known international brands are certainly Honewell and Fireeye; it seems that Honewell later developed another brand called Yamaki from Japan. The prices generally range from 10,000 to 40,000. There are also a few companies in China that do this; as far as I know, they include Beijing Aerospace 11th Institute and Beijing Far East. The prices seem to be around 0.8 to 2.5 million yuan. However, for the same type of flame detector, some units work well while others do not, and this may be related to the location where the flame detector is installed.

Since oil mist can deflagrate and cause shooting flames, a flame detector must be installed.

All the burners in our factory, whether domestic or imported, are equipped with flame detection, which is essential. It prevents explosions during pre-purge, and provides protection against ignition failure and flameout.

There’s no rule stating that it must be installed, right! For industrial furnaces that operate stably for long periods of time, and whose burners are equipped with pilot lights, they are not used frequently!

It is mandatory to install such devices as specified; the regulations for the safe operation of boilers lay down such requirements. This is especially true for large power station boilers – without installing flame detectors, it is not possible to start the boiler, and it will not pass the safety inspections.

Required devices in FSSS specifications

The Regulations on Safety Technical Inspection of Steam Boilers stipulate that fuel and gas boilers must be equipped with flame detection devices.

Thank you all for your support. Flame detection has now been added. The client’s reason is that CNPC has a safety regulation requiring flame detectors to be installed on tubular heating furnaces. If any of you have it, please send me a copy of the FSSS and the \"Safety Technical Inspection Regulations for Steam Boilers\". Thank you, yanlibin99@163.com

This post was last edited by dongjiang1001 on 2012-2-9 17:08. The NFPA 86 standard states that fire detection is a safety interlock procedure.

If it’s not a coal-fired furnace, it doesn’t matter whether it’s used or not; the quality of that thing isn’t very good anyway!