Single-disc type floating disc in storage tank

Abstract

The invention aims at providing a single-disc type floating disc in a storage tank. A floating disc body is formed by closely arraying multiple I-shaped floating pipes in a horizontal direction, the floating pipes are fixedly connected with one another, and a refractory layer is arranged on the surface of the floating disc body. A sealing casing pipe is arranged between the floating disc body andthe wall of the tank, the floating disc body is fixedly connected to one end of the sealing casing pipe, the other end of the sealing casing pipe is fixedly connected to the top of the storage tank, and a sealed space is formed between the sealing casing pipe and the inner wall of the storage tank. The sealing casing pipe adopts a vertically retractable flexible connecting structure, multiple reinforcing ribs are arranged in the middle of the sealing casing pipe, and venting holes are formed in the top of the sealing casing pipe. The floating disc has a simple structure, and the weight of thewhole floating disc can be reduced by means of a hollow floating pipe structure; volatile oil gas remaining on the wall of the tank is controlled in the sealed space formed between the sealing casingpipe and the storage tank and finally discharged along the venting holes to achieve organized emission. The whole floating disc is simple in device structure, convenient to install and operate, long in service life, safer and more environmentally friendly.

Description

technical field [0001] The invention relates to the field of chemical environmental protection, in particular to a single-disc storage tank inner floating disc. Background technique [0002] With the widespread use of oil in petrochemical units across the country, as well as major oil companies and refineries, ports, transportation, power plants, and military logistics departments, there are more and more oil storage facilities, the most common of which are oil storage The use of storage tanks, among them, the floating plate of the storage tank is an indispensable energy-saving and environmental protection device in these oil storage tanks. Energy saving and environmental protection equipment. In order to reduce the volatilization of the medium in the storage tank, reduce loss, save energy, and protect the environment, an internal floating plate is added in the storage tank. The storage tank saves energy and protects the environment by installing a floating plate to seal t...

AI Technical Summary

Problems solved by technology

At present, the structure and style of storage tank floating discs are also various, usually divided into steel type iron floating tank floating discs, buoy type floating discs, honeycomb plate type floating discs, buoyant box type floating discs, although these types of floating discs are all They have their own advantages, but at the same time there are hidden dangers in different degrees. Due to the high cost, bulkiness and long construction period of the steel-type iron floating tank, the floating plate needs to be welded on site, with few buoyancy units, easy to leak and easy to chuck. The tank is deformed, maintenance is difficult and the cost is high; the airtightness of the buoy type floating disc is not strong, there is room for volatilization, the buoyancy units are scattered, and it is easy to fluctuate due to the influence of the incoming and outgoing media, the cover plate is thin, easy to cause deformation and damage, and the service life is short , and there is no guarantee that people can freely walk on the floating roof for construction; although the honeycomb plate floating plate has made breakthroughs and improvements in structure, enhanced sealing, convenient construction, and easy assembly, its structure is too complicated. The installation of accessories has brought a lot of inconvenience. Due to the imperfect supporting facilities, the safety of the floating plate itself has been greatly reduced, and there is a lack of effective discharge of oil and gas; , the floating tank is easily damaged by the fluctuation of the medium, and the dismantling of the floating tank containing the medium causes safety accidents. In recent years, accidents have often been reported. Therefore, the national security department has issued a document to gradually ban such floating discs

Moreover, the above-mentioned floating disk seals only suppress the volatilization of the liquid surface, and do not effectively control the volatilization of the residual medium on the inner wall of the storage tank, which is fugitive emission.

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