On pressure testing of large storage tanks
Thread Content
A sodium hydroxide storage tank with a capacity of 2000 cubic meters is currently being designed. The density of the medium in question is 1.53, with a diameter of 15,800 and a height of 11,100. Since the density of this medium is much higher than that of water, how should the pressure test be carried out? I earnestly ask all experts to share their insights. Thank you first.
1. Since the density of the medium is much greater than that of water, there is no need to consider the impact of the weight of water on the support during hydraulic testing. 2. Due to its large volume, a combined vapor-liquid testing method must be employed
The gas-liquid mixing method can be employed
The use of a gas-liquid mixed method for testing was also considered, but the problem is that if the gas pressure is too high, the entire tank cannot withstand it.
I have worked on tanks with a diameter of 5,000 and a length of 26,000. The standard procedure is to use air pressure first and then hydraulic pressure; during the air pressure test, soap water is applied to the weld areas, although the medium used is steam. Heh:lol
The bottom plate is subjected to vacuum leak testing, while the tank is tested for air tightness