Instrument air buffer tank
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Hello everyone, take a look at this instrument air buffer tank. Its function is to provide an air source for the operation of control valves. But don’t forget that it is itself a pressure vessel. So, does anyone feel that something is missing?
(1) Where is the intake pipeline? (2) There is a missing safety valve at the top. (3) The valve at the base of the discharge pipeline is absent. (4) There should also be a vent valve, which can be placed at the bottom of the tank
1. Please check the regulations to see if the tank is large enough to install a safety valve 2. Install a pressure gauge and include it in the calibration process. Anyway, the inspection doesn’t cost anything now. 3. Install a drain valve, or connect a steam trap in series. 4. Pour directly into the foundation? It’s not very standard; a small base should be present, so that the feet are less prone to corrosion. 5. If it is local buffering, there should be inlet and outlet pipes.
It has a small safety valve on top; is it a TYCO butterfly valve?
This isn’t called a buffer tank, is it? Is its function to continue supplying operating air to the valve after the air supply is cut off, or to maintain a set position, or to provide interlock functionality? This is one of the various connection methods: the inlet is also the outlet. Due to the one-way nature of the pressure-reducing filter valve, fluid cannot flow back into the pipeline; it can only supply air to the valve. It lacks a safety valve, and there should also be a drain valve at the bottom
There is clearly a lack of safety valves; there are no inlet pipes, only a pipe from the exhaust pipe to the control valve. No valves are installed on the inlet or outlet pipes, and it’s unknown whether a drain pipe at the bottom is present.
What was said on the 6th floor is correct; this is a valve air storage tank that drives the valve to a faulty position in case of a malfunction. It lacks a safety valve, and there should be a drain valve at the bottom.
Safety aspect: Lack of safety valve； There should be a drain at the bottom; it’s not clear to see ；
The inlet and outlet pipes can be on the same line; there should be a branch tee for this purpose. The nameplate must be clear, with the equipment name properly indicated. Appropriate measures such as collision protection or similar safeguards should also be considered
This is the air storage tank; air is pumped into it when there is a supply of air, and it releases air when the air supply is cut off. There is no check valve, but there is a local pressure gauge. A drain valve is located at the bottom; all that’s needed is to fix it firmly to the ground