180ft diameter API standard 650 unanchored flat-bottom tank
There is a gap of 100 mm to 500 mm between the shell of API 650 crude oil storage API standard 650 unanchored flat-bottom tank tank and the floating plate of external floating roof to ensure that there is no chuck during operation. Use API standard 650 unanchored flat-bottom tank edge sealing system to reduce edge evaporation. The support legs of API 650 crude oil tank floating roof are usually movable and retractable and suspended in liquid.
In this project, an elemental area of tank wall used is constructed of ASTM A442 Grade 55 steel plate subjected to a meridional unit force, T1, of 4000 lbf/in.2 tension and a latitudinal unit force, T2, of 5060 lbf/in.2 compression. The meridional radius of curvature, R1, is 75 in., and the length of the normal from the surface to the axis of revolution, R2, is 300 in. The joints in the wall are of double-welded butt-joint construction with a tensile efficiency of 85%. A corrosion allowance of 1/16 in. is required.The problem in this example is to graphically find the minimum thickness of tank wall required for the given conditions (see 5.10.3.3).Solution: As determined from Table 5-1, the maximum allowable tensile stress value, Sts, for ASTM A442 Grade 55 steel plate in simple tension is 16,500 lbf/in.2. Since the compressive stress is latitudinal, the governing value of R in this situation is R1, or 75 in.
API standard 650 unanchored flat-bottom tank, Oil tanks can be divided into above ground storage tanks, underground storage tanks, offshore tanks and submarine tanks according to their installation positions. Oil tanks can be divided into crude oil tanks, fuel oil tanks, lubricating oil tanks, edible oil tanks, etc.. According to the use of oil tanks, oil tanks can be divided into production tanks, storage tanks, etc.. According to the external style, oil tanks can be divided into vertical tanks, horizontal tanks, etc.. According to the composition structure, oil tanks can be divided into fixed roof storage tank, floating roof tank, spherical tank, etc.
To the society: With the development of the company, BEBON has always adhered to the development mission of "developing heavy industry for the benefit of all mankind; improving the environment and achieving sustainable development”, operating with integrity and paying taxes in accordance with law.For our employees, the company fully respect employee value, pursuing mutual development of enterprise and employees.
In addition to our own truck fleet, we also have long-term cooperation with certain logistics companies to ensure that we can deliver API standard 650 unanchored flat-bottom tank goods in time and smoothly. At the same time, because of the long-term cooperation and huge shipping volume, we can get a good transportation price and save transportation cost for the company and customers. Meanwhile, we have Shipping Department to arrange shipping work in advance. So as not to waste time on transportation both in land and on the sea.
We should help solve the customer's problems in time, not just verbally, without solving the problems or shirking the responsibility. Improving after-sales efficiency can make customers feel respect. We should take their problems seriously and show sincerity. It can also give customers a good impression and reduce the negative impact.