along with PPH storage tank The utilization rate of is becoming more and more common, and its quality is also getting higher and higher. Because of its characteristics and advantages, it is widely used. In order to make people use it better, we can meet people's needs in the process of use. Requirements, let's take a look at the special requirements for PPH tank construction.

Low temperature resistance of PPH storage tank: specially designed for liquefied gas, and stored at atmospheric pressure or slightly higher than atmospheric pressure. Compared with high-pressure and normal temperature storage, the tank wall thickness can be greatly reduced and the performance can be improved. At the same time, it must be resistant to low temperatures. Since cryogenic liquid is stored in PPH tank, it has great storage capacity. In case of an accident in the storage tank, a large amount of volatile refrigerant forms an air mass and automatically detonates in the atmosphere. Therefore, the American Petroleum Institute, EN14620 and other specifications require that the storage tank has a double wall structure and a closed concept to ensure safe storage.

PPH mixing tank The wall is resistant to low temperature, and 9Ni steel is generally used. The outer wall is prestressed reinforced concrete, and the tensile strength is generally 20kpa. Since the temperature difference inside and outside the tank can reach 200 ℃, in order to keep the temperature inside the tank at - 162 ℃, it must have good cold insulation performance, and high performance cold insulation materials should be filled between the interior. And outer tank. The cold insulation materials at the tank bottom shall have sufficient pressure bearing capacity. To ensure safety, PPH storage tank shall not collapse or break under the specified load. Therefore, it is necessary to select appropriate places, avoid unsafe areas, and conduct seismic test on storage tanks before construction. The tank joints must be subject to magnetic particle testing and vacuum air tightness testing. Cold insulation materials shall be strictly selected, and the construction shall be carried out according to the specified procedures to ensure the perpendicularity of the storage tank.

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