How to save a 1,000 cubic meter hydrogen storage tank if it catches fire?

Try every means to ensure that the pressure inside the gas tank is positive. A large fire extinguisher must be used, preferably a dry powder/carbon dioxide fire truck. Before the fire truck arrives, pay attention to the crowd dispersion. At the same time, use water pipes to cool the top of the gas tank.

What I don’t understand a bit is what safety measures have you taken for hydrogen tank maintenance? What caused it to catch fire? The explosion limit of hydrogen is 4.1% ~ 74.2%, the maximum explosion pressure is 740kPa, the maximum explosion pressure concentration is 32.3%, and the minimum ignition energy is 0.019mJ! The explosion limit range is large, and the only way is probably to maintain positive pressure as mentioned on the second floor to prevent the formation of explosive mixed gases. If you cannot completely control the fire, it is best not to completely extinguish the flame!

It is more appropriate to quickly configure steam or nitrogen into the gas cabinet, dilute it internally, extinguish the fire, and replace it.

I agree with the method on the fourth floor. Open flames must not be allowed to enter the gas cabinet. It is recommended to use external fire extinguishing at the same time.

What's wrong with the fourth floor is to add these gases. The gas tank can be filled up to 1000M3 at most, but the explosion range of hydrogen has not yet been released. I think that if such a problem occurs, we must first reduce the volume in the later stages to avoid negative pressure. The wet bell jar storage cabinet itself has a slightly positive pressure and uses steam to extinguish the fire. It is recommended to use a magic wand to close the leak. However, this is for emergency use. It is best to make plans to replace the gas tank that has been in disrepair.

Personally, I think you have considered it more carefully! Start with technology, equipment, and fire protection to prevent the spread! However, filling with nitrogen or steam, although it does not exceed the explosion range of hydrogen, can maintain positive pressure in the cabinet and prevent the formation of explosive mixed gases! Can relieve burning eyebrows! It is also recommended that you go to the Forum Wealth Center - Red Packet for Newcomers - register to be promoted to the second grade in 7 days (registration time is 8 minutes), and be promoted to the second grade as soon as possible to better participate in the discussion! Alternatively, you can exchange wealth for charm! This post was last edited by netlover on 2008-2-18 11:21 ]

Maintain a positive pressure inside the tank. If the source of leaking air cannot be cut off, extinguishing the fire is not recommended!

Let me summarize it: one: For positive pressure, first reduce the volume in the later stages to avoid negative pressure, and then quickly configure steam or nitrogen into the gas cabinet to dilute it internally to prevent the formation of explosive mixed gases. ； To cool down, use a water pipe to cool down the top of the gas cabinet. ； Put out the fire, put out the fire with steam: Plug leaks.

1. Reduce the pressure of the gas tank as much as possible to ensure a slight positive pressure. It is safe at this time. 2. Use steam to blow against the fire. First blow flatly to blow away the fire, and then blow against the small hole for a while to cut off the hydrogen. It will be fine after a while and it is easy to extinguish.

It is recommended to add steam or inert gas to the gas cabinet to keep the gas cabinet at about 400 cubic meters until the flame goes out naturally. Cooling measures can be taken during this process, but fire extinguishing measures are not recommended.

If we don't put out the fire, let the hydrogen burn out?

There are many methods. Dilute it with water and then use high-pressure water bubbles to extinguish the fire. You can also extinguish the fire as mentioned on the 4th floor. But it is important to clear the surrounding combustibles and cool down the storage tank before putting out the fire.

one: For positive pressure, we must first reduce the volume in the later stages to avoid negative pressure. 2. ； To cool down, use a water pipe to cool down the top of the gas cabinet.: Plug leaks.

The hydrogen tank has been in disrepair for a long time, so I guess your firefighting equipment is also in disrepair :L

The vent pipe of our unit's hydrogen tank caught fire during thunder, so just close the vent pipe valve. If it is corroded, the hydrogen cabinet should be connected to a nitrogen pipe, and nitrogen should be introduced to extinguish the fire.

It's really difficult to deal with. If the leakage point is small, you can put out the fire and use steam to dilute the leaked hydrogen. Maintain positive pressure in the tank, extract and transfer the hydrogen as soon as possible, and repair it after the disposal conditions are met. If the leakage is large, the fire must be controlled and cannot be extinguished immediately to prevent an explosion. The hydrogen tank and surrounding containers must be cooled down to make them burn smoothly, and personnel must be evacuated immediately to prevent an explosion. The occurrence of a vicious explosion accident cannot be ruled out, and ensuring the safety of personnel is the main goal.

Cut off the fire from the root to determine whether the leak can be plugged. If the leak cannot be plugged, continue to light the fire as it will be safer to burn.

The issue raised by the poster needs to be discussed seriously. The hydrogen gas tank leaked and caught fire during maintenance. The first thing that needs to be explained is that the equipment leaked and was still being repaired. This is a serious violation in itself. It should be stopped and replaced and overhauled. ； Secondly, after a fire occurs, the positive pressure of the gas cabinet should be maintained. At the same time, inert gas (N2, steam or CO2, etc.) should be introduced into the equipment to prevent air from entering the gas cabinet and replace it at the same time. ； Fire extinguishing measures must be scientific and reasonable. I will not repeat them as discussed above! Find the cause of equipment leakage, implement responsibilities and strengthen management! This post was last edited by bridal chamber flower candle on 2008-12-4 10:38 ]