Pressure testing experiment for basement addition/subtraction and interchange valves
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This post was last edited by Han Zong Jiu Wei on 2017-9-8 at 10:11. In order to test the sealing performance of the coke oven gas valve, it is necessary to conduct a pressure testing on the valve. I just graduated and started working in coking; my supervisor assigned me tasks for which I had to come up with plans. I’m looking for a senior colleague with experience in this area who could offer some guidance. Thank you, thank you!
There are standard procedures for this; you can search online and refer to \"Coke Oven Production Technology\". The general process is as follows: Weld a air tank with a volume of 0.03 cubic meters, apply a pressure of 20 kPa (equivalent to 2 meters of water column), and maintain this pressure for 30 minutes. A pass is considered successful if the pressure drop is less than 500 Pa. Note that the valve should be adjusted to three positions – fully open, fully closed, and the intermediate position – and no butter should be applied to the surface of the valve； It is advisable to clean both the plug core and the interior of the shell with kerosene before compression.
Hello, thank you so much! Is it possible to remove 5 to 6 valves and connect them together for pressure testing? Testing each one for 30 minutes is quite time-consuming and delays production.
Trying to suppress them by putting them together definitely won’t work! It’s impossible to determine which one is leaking. Additionally, if each one leaks by 20%, then individually they would be considered qualified; but when all 5 are considered together, they fail the standard!
Trying to suppress them by putting them together definitely won’t work! It’s impossible to determine which one is leaking. Additionally, if each one leaks by 20%, then individually they would be considered qualified; but when all 5 are considered together, they fail the standard!
Trying to suppress them by putting them together definitely won’t work! It’s impossible to determine which one is leaking. Additionally, if each one leaks by 20%, then individually they would be considered qualified; but when all 5 are considered together, they fail the standard!