Double-layer elastic plate structure for full-compensation elastic sealing of floating roof storage tank and mounting method

Abstract

The invention relates to the technical field of floating roof storage tank sealing, in particular to a double-layer elastic plate structure for full-compensation elastic sealing of a floating roof storage tank and a mounting method. The device comprises an inner elastic plate, an outer elastic plate and a sealing unit, the inner elastic plate and the outer elastic plate are overlapped and distributed in the circumferential direction of the tank wall of a storage tank to form an elastic body, one end, namely the first end, of each of the inner elastic plate and the outer elastic plate is fixedly arranged on the upper portion of a pontoon edge plate through the sealing unit; and the other ends, namely second ends, of the inner elastic plate and the outer elastic plate extend towards the inner tank wall side of the storage tank, are attached to the inner tank wall of the storage tank, and extend downwards to the lower side of the liquid level of a storage medium of the storage tank. According to the double-layer elastic plate structure for elastic sealing, the sealing effect of a single-layer elastic plate in traditional elastic sealing is improved, limiting hooks are additionally arranged on the outer elastic plates to hook the joints of the inner elastic plates and the adjacent outer elastic plates, the fault tolerance is high, the elastic plates are not prone to deformation, displacement and the like after installation is completed, and the sealing performance and the operation safety of the storage tank are greatly improved.

Description

technical field [0001] The invention relates to the technical field of sealing of floating roof storage tanks, in particular to a double-layer elastic plate structure and installation method for fully compensated elastic sealing of floating roof storage tanks. Background technique [0002] In recent years, the storage of petroleum energy has increasingly shown its important position in my country's social construction. In recent years, my country has newly built a large number of national petroleum storage bases and built a large number of petroleum storage tanks. With the improvement of social requirements for safety and environmental protection, effective sealing measures must be taken for the space connecting the oil storage area of ​​the oil storage tank with the outside. The annular gap between the edge of the floating plate and the tank wall of the floating roof storage tank is the focus of volatilization and loss of oil and gas. The sealing device here must have good ...

AI Technical Summary

Problems solved by technology

The spring plate that plays a compensating role in the elastic seal plays an important role in the sealing effect of the storage tank. The spring plate of the traditional elastic seal is made of single-layer stainless steel. In practical applications, the single-layer spring plate is easily caused by problems such as thinness or insufficient elasticity. The sealing effect is not good, and the soft sealing interlayer laid on the inside or outside of the single-layer spring plate also has the risk of detaching from the spring plate, making the seal lose its use value and bringing certain risks to the oil and gas storage and safe operation of the storage tank

At present, there are a few seals using double-layer spring plate structure, but it is only a simple superposition of single-layer spring plate, which does not solve the safety problems caused by the complicated installation process of the spring plate and the cooperation between the two layers of spring plate in the seal after installation. Therefore, its sealing performance is not much improved compared with the traditional single-layer spring board

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