Oily material storage tank inner floating disc

Abstract

The invention provides an oily material storage tank inner floating disc. The oily material storage tank inner floating disc is composed of a plurality of independent floaters which are composed of hollow shells and inner fillers, the lower portions of the hollow shells are filled with one or more of metal or building materials, and can serve as heavy areas of the floaters, the upper portions of the hollow shells can be filled with light foam plastic or are kept hollow and serve as light areas of the floaters, the metal materials are selected from one or more of steel, aluminum, iron or lead, and the building materials are selected from one or more of concrete, cement, dinas or soil. The floating disc has the beneficial effects that the structure is reasonable, the stress gravity center is downward, disc sinking is not prone to happening, the manufacturing method is simple, flame operation is not needed in the mounting site, and mounting is easy and convenient; evaporation losses of petroleum products can be obviously reduced, and the floating disc is suitable for various oil storage tanks, dirt oil tanks, homogenizing tanks, sewage tanks and other storage tanks with oily materials and is particularly suitable for small storage tanks.

Description

technical field [0001] The invention relates to an inner floating plate of an oil-containing material storage tank, which is especially suitable for small vertical cylindrical metal oil storage and oil-containing material storage tanks. Background technique [0002] In the petroleum and petrochemical industry, in order to reduce the evaporation loss of oil in the oil storage tank and prevent environmental pollution, an inner floating plate is usually installed in the oil storage tank. Most of the inner floating discs used now are equipped with floats on the metal skeleton. In sewage tanks, homogeneous tanks, and sewage tanks, tank-in-tank facilities are mostly used to reduce volatilization of oil and gas, and some measures have not yet been taken. [0003] The disadvantages of this type of inner floating plate are: 1. The sealing device between the floating plate and the tank wall is often damaged due to weld scars, burrs and aging of the tank wall, and it is difficult to r...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of this type of inner floating plate are: 1. The sealing device between the floating plate and the tank wall is often damaged due to weld scars, burrs and aging of the tank wall, and it is difficult to replace and maintain; 2. During the oiling process, when the local deformation of the tank wall is large or the center of gravity of the floating plate is shifted, the floating plate and the sealing structure of the floating plate will be stuck with the tank wall, causing the floating plate to tilt, and the oil leaks from the sealing ring to the top of the floating roof. 3. The processing and manufacturing of the floating plate is complicated and must be installed on site; 4. In the long-term operation, the floating plate is deformed due to factors such as corrosion thinning and damage to the floating plate accessories. Affected by different buoyancy, one side eats oil deep and the other side eats shallow, which will eventually lead to sinking

[0004] At present, the homogeneous tank used to replace the grease trap in the sewage treatment plant of the refinery has the disadvantages of the tank-in-tank: 1. The internal parts of the tank in the tank include a water collection pipe, a hydrocyclone settling tank, a hydrocyclone separation device, The structure of the automatic oil slick collection device is complex; 2. The hydrocyclone in the tank-in-tank is a stainless steel integral device with a large diameter and a long length. The equipment weighs several tons and is placed on the upper part of the tank-in-tank. Difficulty; 3. The internal components of the tank in the tank are basically made of stainless steel, which requires a large amount of consumption and high investment

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