A braced loop reactor

Abstract

The invention discloses a diagonal bracing type loop reactor which comprises multiple sleeves, a jacket communication pipe, a bend and a mounting support, wherein each sleeve comprises an inner pipe and an outer pipe; the bend and the inner pipes are sequentially connected in series to form a communication runner for the conveying and reaction of the reaction material; the jacket communication pipe is located at the bend and connected with the outer pipes; the jacket runners formed between the inner pipes and outer pipes are connected in series to form a communication runner for conveying the cooling medium; the sleeves include vertical sleeves and / or inclined sleeves; and the diagonal bracing type loop reactor is formed by combining the vertical sleeves and the inclined sleeves or by combining the inclined sleeves. Through the invention, the technical prejudice that the sleeves of the traditional loop reactor are vertical sleeves only is overcome; by adopting the improved technical scheme, the contact area of the mounting foundation can be increased so as to enhance the ability of the sleeves in resisting the toppling bending moment and disperse the load of the whole loop reactor at the same time; and the technology meets the requirements for the strength and stability of a high-rise structure.

Description

technical field [0001] The invention relates to the engineering technology of special mechanical equipment for petrochemical industry, in particular to a diagonally braced loop reactor. Background technique [0002] In the prior art, polyolefins (such as polypropylene and polyethylene) are the varieties with the largest output and consumption in general-purpose synthetic resins. The usual production techniques of polyolefins include three types: namely, slurry method, gas phase method and solution method . The so-called slurry method (Slurry Process), also known as slurry method or solvent method, is the earliest technology used to produce polypropylene in the world. The production technology of slurry method is the main method of producing HDPE. The production process method is: mixing propylene or ethylene with hydrocarbon solvent, and the produced polymer is suspended in the solvent. The industrial application of slurry method is earlier, and the process technology is ma...

AI Technical Summary

Problems solved by technology

At present, the production capacity of a single polypropylene loop reactor in China has been increased from 70,000 tons / year domestically produced for the first time in 1996 to the current 400,000 tons / year. For tube reactors, since the sleeve adopts an integrated slender vertical structure, when the length of the sleeve exceeds 60m, the following disadvantages will occur: The installation method of the sleeve is only vertical and upright. If the increase exceeds 60m, it is difficult to guarantee the strength and stability of the high-rise steel structure under the action of dynamic load. If the strength and stability are improved only by increasing the wall thickness of the casing, not only the equipment investment cost will increase, but also the thickness of the thick wall will increase. Increased thermal resistance will have a negative impact on the heat transfer effect, which is not conducive to energy saving and emission reduction

[0006] For example, the Chinese invention patent application (publication number: CN101503483A) in the prior art disclosed an "improved environmental protection system" on August 12, 2009. A pumping device and method for slurry polymerization in a tube reactor", wherein the casing of the loop reactor involved is a vertical pipe section, which has poor stability and poor resistance to toppling moment, and cannot be applied to towering The structure meets its strength and stability requirements

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