Wind port small sleeve cooling water pipe hard pipe transformed metal hose connector

Abstract

The invention discloses a wind port small sleeve cooling water pipe hard pipe transformed metal hose connector. A middle sleeve, a straight blowing pipe, a transformed connection module and a flange are included. The transformed connection module comprises a small sleeve, a cooling water pipe hard pipe, a metal hose and a quick coupling. The metal hose can be adopted to replace a traditional cooling water hard pipe, the length of the metal hose can be freely adjusted, operation is convenient, deformation can be effectively absorbed, the phenomenon of pipe root water leakage is avoided, and theapplication effect is very good; the outer portion of the metal hose is wrapped by high-temperature asbestos, high-temperature damage is prevented, and the service life is prolonged; and the damping-down time is shortened, and potential safety hazards are eliminated. The problems that in the prior art, due to the furnace interior pressure, deformation or displacement is generated due to temperature changes, consequently, the cooling water hard pipe directly makes contact with the middle sleeve or the straight blowing pipe for extrusion, the hard pipe is bent and deforms after being stressed,the seal face of the pipe root and the small sleeve is damaged, a large amount of water leaks, when the condition is serious, damping-down needs to be conducted for replacement, and adverse influencesare brought to blast furnace production are solved.

Description

technical field [0001] The invention belongs to the field of transformation of hard pipes of cooling water pipes, and in particular relates to a metal flexible pipe connection for the transformation of hard pipes of cooling water pipes with a small set of tuyeres. Background technique [0002] In the field of blast furnace calcination manufacturing, small tuyeres, middle sleeves, and straight blowing pipes are essential air supply devices. During normal use, the small tuyeres, middle sleeves, and straight blowing pipes are deformed due to changes in furnace pressure and temperature. or displacement, causing the cooling water hard pipe to contact and squeeze the middle sleeve or the straight blowing pipe. production is adversely affected. Therefore, it is in line with actual needs to adopt a modified pipe connection method that can replace the cooling water hard pipe, can effectively absorb deformation, and avoid water leakage at the pipe root. [0003] In view of the above...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a small tuyere cooling water pipe hard tube to transform the metal hose connection, which solves the deformation or displacement caused by the pressure and temperature changes in the furnace in the prior art, which causes the cooling water The hard pipe is in contact with the middle sleeve or the straight blowing pipe, and the hard pipe is bent and deformed after being stressed, which damages the sealing surface of the pipe root and the small sleeve and causes a large amount of water leakage. In serious cases, it must be replaced by shutting down the wind, which has a negative impact on the production of the blast furnace.

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