Novel double-wall storage tank

Abstract

A novel double-wall storage tank comprises a storage tank body, an oil leakage detecting device and an oil opening, wherein the storage tank body is formed by an inner wall and an outer wall. A sandwiched plate layer is arranged between the inner wall and the outer wall. Multiple concave bodies are formed in a plate body in an integrated mode and located in the same side face of the plate body. The oil leakage detecting device is connected to a cavity between the inner wall and the outer wall. The walls and the sandwiched plate layer are made of the same materials and can be bound very tightly without special treatment. Due to the sandwiched layer structure, strength and stress of the storage tank are guaranteed, and the cavity between the inner wall and the outer wall is communicated, so that liquid in the cavity circulates smoothly. The oil leakage detecting device is connected into the cavity and can rapidly and conveniently detect oil bodies which leak out after the inner wall cracks or underground water which leaks into the outer wall from the outside after the outer wall cracks. In this way, the structure is reasonable, manufacturing is easy, cost is low, and while the stress strength is guaranteed, the cracking condition of the storage tank body can be sensibly detected.

Description

【Technical field】 [0001] The invention relates to a novel double-wall storage tank. 【Background technique】 [0002] Buried oil storage tanks are one of the main ways of oil storage. At present, buried oil storage tanks are mainly divided into two types: single-layer storage tanks and double-wall storage tanks. Among them, single-layer storage tanks are prone to seepage and leakage after corrosion and damage , causing soil and groundwater pollution, and wasting the oil body resources in the storage tank. Therefore, the single-layer storage tank has obvious safety hazards in terms of service quality and service life; while most of the double-wall storage tanks prepared in the prior art are Double-wall storage tanks with tiny interlayers, such as the Chinese patent No. 201220695881. The characteristics of steel materials are different. The hollow fabric layer of the inner layer must be fixed to the middle of the inner and outer steel walls. It needs special treatment to fix it...

AI Technical Summary

Problems solved by technology

[0002] Buried oil storage tanks are one of the main ways of oil storage. At present, buried oil storage tanks are mainly divided into two types: single-layer storage tanks and double-wall storage tanks. Among them, single-layer storage tanks are prone to seepage and leakage after corrosion and damage , causing soil and groundwater pollution, and wasting the oil body resources in the storage tank. Therefore, the single-layer storage tank has obvious safety hazards in terms of service quality and service life; while most of the double-wall storage tanks prepared in the prior art are Double-wall storage tanks with tiny interlayers, such as the Chinese patent No. 201220695881. The characteristics of steel materials are different. The hollow fabric layer of the inner layer must be fixed to the middle of the inner and outer steel walls. It needs special treatment to fix it, and the stability of the bonding is still to be discussed. The interlayer is supported by dense glass fiber filaments on the inner and outer wall intervals to form a gap. To enhance the strength of the interlayer, it is necessary to increase the density of the fiber filament spacing or increase the diameter of the fiber filaments, which greatly increases the material invisibly. As a result, the production cost has increased significantly, and because the thickness and density of the fibers in each area are different, the sandwich panels in the tank wall cannot be uniformly stressed, resulting in large stress in some places and small stress in some places. The problem is that it is very easy to cause the phenomenon of dislocation extrusion, and the excessive force at one point will cause the wall of the storage tank to break. Due to the distributed force, the manufacturing cost is increased; moreover, the method for detecting wall rupture is to install several liquid detection devices in the interlayer of the double-wall body for detection, but limited by the characteristics of the interlayer, the space of the interlayer It is very narrow and dense. When the wall is broken, the oil in the storage tank flows out from the inside, and it is extremely difficult to flow in the interlayer, which is detected by the liquid detection device. In this way, the sensitivity and response ability of the detection device are greatly reduced. , often cannot be detected and fed back at the first time, there is a time lag, and it also increases the difficulty for maintenance personnel to maintain later

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