How to manually close the catalytic main air one-way damping valve
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The main air one-way damping valve we use is controlled by a cylinder switch, and it has a weight to balance the total weight of the valve plate. On either side of the cylinder are check valves: one side allows air to enter while the other side allows air to exit (what type of damping valve is this?) ). After the self-protection action, if the one-way damping valve does not close, how can it be closed manually? Thank you to all the teachers for their guidance!
Cut off the gas supply; opening the gas supply balance line can be done by using the gravity of a weight, and it should function properly under normal circumstances. The safety valve must be checked every time the equipment is started up. After the self-protection action, the outlet control valve of the main fan also closes automatically, while the vent valve opens.
After opening the balance valve, it is recommended to open the exhaust valve as well; this makes manual operation much easier!
Once, the oil and gas butterfly valve at the top of the tower closed on its own; attempts were made to hold the shaft in place using pipe wrenches, but the shaft got damaged yet the valve still wouldn’t move – probably because there was no steam release.
After several self-protection actions by our device, the main air one-way damping valve failed to close. Our operators used a large F wrench to force it off; it wasn’t easy
We haven’t seen any activity in the recent times; what is the format of this one-way damping valve?
The pressure required for the power fan is usually 4-5 kilograms; if there is no exhaust, it will be extremely difficult to operate it even in manual mode! Because I encountered a similar situation in my first week at the factory; my mentor then had me switch to manual mode and then turn it off. I managed to do that, but I was exhausted! Later, the master, after being busy with various tasks, came over to me and said, “I forgot to close one of the exhaust valves earlier; did you close it as well?” ”Then I opened the exhaust valve and allowed myself to move a little; indeed, it was much easier! Since then, I have used this same approach with similar valves. When training my apprentices, I also have them experience what it’s like to not have the exhaust valve open, so that they can remember it better;P