A high-temperature cooler with a circular cross-section shell structure and its design method

Abstract

The invention relates to a circular-section shell body structure of a high-temperature cooler, and a design method thereof. The circular-section shell body structure of the high-temperature cooler, and the design method thereof are characterized in that a thin-wall interlayer reinforcing structure of a circular-section shell body comprises an inner barrel of the shell body, an outer barrel of theshell body, a plug welding reinforcing body and a cooling medium for the shell body, wherein the inner barrel of the shell body and the outer barrel of the shell body are connected into one piece through the plug welding reinforcing body. Insufficient strength and rigidity caused due to a too high wall temperature of the shell body in a structural design for a cooler shell body with a high dimension (diameter of greater than 2m) and used for high-temperature gas (with a temperature of greater than 6000K) are overcome, the use amount of metal materials is remarkably reduced, and the cost is effectively reduced; and the shell body designed through the thin-wall reinforcing structure is capable of effectively reducing the temperature difference between a hot fluid sidewall and a cold fluid sidewall, reducing the thermal stress of the shell body structure, and improving the stability of equipment, and meanwhile, the running time of a cold fluid auxiliary system is shortened after the equipment stops running, so that the running cost of the equipment is reduced.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of heat exchangers, in particular to a large-scale high-temperature gas (temperature exceeding 6000K) cooler shell structure and a design method thereof with a diameter exceeding 2m. Background technique [0002] The high temperature gas cooler is the most important heat exchange system in the arc wind tunnel. A common high-temperature gas cooler consists of three parts, a heat exchange tube array, a shell (wrapped outside the heat exchange tubes) and a fluid distribution unit. During the operation of the arc wind tunnel, because the upstream high-temperature gas will heat the cooler shell, the wall temperature of the shell will be too high, which will reduce the strength and rigidity of the shell, so a water-cooled structure design is required. For large-scale (diameter more than 2m) high-temperature gas cooler shells designed with sandwich water-cooled structures, in order to ens...

AI Technical Summary

Problems solved by technology

[0013] Aiming at the defects in the prior art, the present invention provides a large-scale high-temperature gas cooler shell structure and its design method, which can solve the problem of large-scale (over 2m in diameter) high-temperature gas (over 6000K) cooler shell structure design. , due to insufficient strength and rigidity caused by excessive shell wall temperature, the amount of metal materials used can be significantly reduced, and the cost can be effectively reduced; the shell designed with thin-wall reinforced structure can effectively reduce the temperature difference between the side wall of the thermal fluid and the side wall of the shell cooling medium , reduce the thermal stress of the shell structure, improve the stability of the equipment, and at the same time shorten the running time of the cooling medium auxiliary system of the shell after the equipment stops running, and reduce the operating cost of the equipment

Images