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Spiral manufacturing operating level earthquake (ole)

Spiral manufacturing operating level earthquake (ole)

Spiral manufacturing operating level earthquake (ole)

Spiral manufacturing, 15Mo3 steel plate is a kind of pearlitic heat-resistant steel, which can still show characteristics at higher temperature and under long-time load. 15Mo3 steel plate is used for heating surface of low and medium pressure boiler (working pressure is not more than 5.88MPA, working temperature is below 450℃). Chemical elements of 15Mo3 steel plate: C: 0.12-0.20, Si: 0.10-0.35, Mn: 0.40-0.80, P: ≤ 0.030, S: ≤ 0.030, Cr -, Mo: 0.25-0.35.

Design of Reinforcement for Single Openings in Tank Walls
The 20 in. x 29 in. obround manhole shown in Figure F-5 is located in solid plate in the sidewall of a cylindrical storage tank 45 ft in diameter in an area where the thickness of the wall plate, tw, is 1/2 in. No corrosion allowance is required. The total internal pressure, Pl + Pg, at the horizontal centerline of the opening is 27.5 lbf/in.2 gauge. The thickness of the wall plate, t, required by 5.10.3 for the latitudinal unit forces, T2, acting at this level is 0.485 in. The manhole neck is fabricated by welding from 3/8 in. plate. The materials in the API 620 tank wall, the manhole neck, and the reinforcing pad conform to ASTM A516 Grade 60. The joints in the welded steel storage oil tank wall and the longitudinal joint or joints in the manhole neck are double-welded butt joints, spot radiographed in accordance with 7.16 and 7.17.

API 650 petroleum storage tank pipeline stress and product pressure, tank pressure, uniform or non-uniform temperature difference between the tank wall and the tank bottom, which cause the radial displacement and longitudinal rotation of the Spiral manufacturing tank wall at the opening to affect the oil tank wall The impact is obvious. Therefore, the design must ensure that the load applied by the external pipeline on the opening of the tank wall is within the safety limit. If the stress of the Spiral manufacturing connecting piping is not handled properly, the wall of the API 650 petroleum storage tank may deform or even rupture, causing a major accident.

Since its establishment, the company has participated in several key railway and highway projects. After years of development, the company’s Spiral manufacturing domestic market has been exported to more than a dozen provinces and cities including Kunming, Shenzhen, Hunan, Sichuan, Shanghai, Nanjing, Heihe, Jilin, Inner Mongolia, and Xinjiang . International trade is exported to Kazakhstan, South Korea, Vietnam, South Africa and many other countries, and has been well received by customers.

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