Heat-resistant efficient heat-exchanging seamless steel pipe

Abstract

The invention discloses a heat-resistant efficient heat-exchanging seamless steel pipe, which comprises an inner pipe and an outer pipe which are arranged coaxially. According to the structural key points, annularly-arrayed heat exchange holes are formed in the inner pipe and the outer pipe correspondingly, heat exchange columns are arranged in the heat exchange holes in a matched mode, the two ends of the heat exchange columns are arranged inside the inner pipe and outside the outer pipe correspondingly, outer threaded parts extending from the middle to the two ends are arranged on the outersurfaces of the heat exchange columns, and locking circular plates and heat dissipation sheets are connected to the outer threaded parts in a screwed mode; and the upper ends of the heat exchange columns are connected with heat dissipation plates, the lower ends of the heat exchange columns are connected with heat exchange balls, cavities are formed in the heat exchange balls and internally provided with purifying particles, and purifying openings communicating with the cavities are formed in the heat exchange balls. Compared with the prior art, the heat-resistant efficient heat-exchanging seamless steel pipe has the beneficial effects that the design is reasonable, the structure is simple, tail gas heat in an exhaust pipe can be rapidly subjected to heat exchange, thus the danger that dueto the excessively high temperature of the exhaust pipe, thermal deformation is formed and other people are scalded is avoided, and the long service life and high safety are achieved.

Description

technical field [0001] The invention belongs to the technical field of steel pipes, and in particular relates to a heat-resistant and high-efficiency heat-exchanging seamless steel pipe. Background technique [0002] Seamless smooth pipe refers to a steel pipe without welds, which is directly rolled from a billet and used to make high-pressure boiler pipes, oil pipes, gun barrels, etc. Existing automobile exhaust pipes are also made of seamless steel pipes, but The heat dissipation efficiency of the existing exhaust pipe is low, which easily causes the deformation of the exhaust pipe, and even the exhaust pipe of the motorcycle is relatively easy to cause burns to people. Although a heat exchange seamless steel pipe is disclosed in the prior art, it Its heat exchange efficiency is limited, and the exhaust pipe will still be thermally expanded and deformed during the heat exchange process. Contents of the invention [0003] In order to solve the above technical problems, t...

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Problems solved by technology

[0002] Seamless smooth pipe refers to a steel pipe without welds, which is directly rolled from a billet and used to make high-pressure boiler pipes, oil pipes, gun barrels, etc. Existing automobile exhaust pipes are also made of seamless steel pipes, but The heat dissipation efficiency of the existing exhaust pipe is low, which easily causes the deformation of the exhaust pipe, and even the exhaust pipe of the motorcycle is relatively easy to cause burns to people. Although a heat exchange seamless steel pipe is disclosed in the prior art, it Its heat transfer efficiency is limited, and it will still cause thermal expansion and deformation of the exhaust pipe during the heat transfer process

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