METHOD OF BENDING monometallic and bimetallic finned tubes with minimum and with the smallest possible bending radius

摘要

1.method of bending u043cu043eu043du043eu043cu0435u0442u0430u043bu043bu0438u0447u0435u0441u043au0438u0445 and u0431u0438u043cu0435u0442u0430u043bu043bu0438u0447u0435u0441u043au0438u0445 u043eu0440u0435u0431u0440u0435u043du044bu0445 pipes with minimum and with the least possible radii of giba, gaining the u bar intended to knee u0440u0438u0432u0438u0437u043du044b comprising rigid fixation of the tube between the front and rear clips, u0441u0432u00a0u0437u0430u043du043du044bu043cu0438 flexible element, which are on the outside of the pipes from the u043du043eu0441u0438u0442u0435u043bu044cu043du043e center radius, giba,the axial u043eu0441u0430u0436u0438u0432u0430u043du0438u0435 fixed station by u043du0430u0442u00a0u0436u0435u043du0438u00a0 flexible element and u0438u0437u0433u0438u0431u0430u043du0438u0435 u043eu0441u0430u0436u0438u0432u0430u0435u043cu043eu0433u043e station by u0432u043eu0437u0434u0435u0439u0441u0442u0432u0438u00a0 he u0438u0437u0433u0438u0431u0430u044eu0449u0438u043c point pe u0440u0435u043cu0435u0449u0435u043du0438u0435u043c pipes in all its u0441u0435u0447u0435u043du0438u00a0u0445, u043du0430u0447u0438u043du0430u00a0 from the front clamp on u043au0440u0438u0432u043eu043bu0438u043du0435u0439u043du043eu0439 trajectory, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, rigid fixation u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0 s front and rear clips with fixation of the ribs in the grooves.with the mirror step u043eu0440u0435u0431u0440u0435u043du0438u00a0 pipe with diameter of 1.1...1,3 u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes by u043fu0440u0438u043bu043eu0436u0435u043du0438u00a0 to fins u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes radial static u0443u0441u0438u043bu0438u00a0 on the outer diameter equal to 1.3 - 1.5 u0443u0441u0438u043bu0438u00a0 giba u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes, axial force u0441u0436u0430u0442u0438u00a0 "live" u0441u0435u0447u0435u043du0438u00a0 u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipe on the bending angle setting in the process of giba is equal m to 1.2.a yield stress of material pipes in all u0441u0435u0447u0435u043du0438u00a0u0445 stations giba, u043eu0440u0435u0431u0440u0435u043du043du0443u044e pipe at the outside diameter to the trajectory of giba moving bed u0441u0435u043au0446 two flexible elements, coinciding with one form of the knee u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes, and the pipe is toward the center of curvature of the u043fu0435u0440u0435u043cu0435u0449u0435u043du0438u00a0 knees and through the initial precipitation pipe with u0441u0436u0430u0442u0438u00a0,providing a flexible element u043du0435u043du0430u0433u0440u0443u0436u0435u043du043du043eu0435 u0441u043eu0441u0442u043eu00a0u043du0438u0435 before giba u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes.;2. method for p.1, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, trajectory u043eu0440u0435u0431u0440u0435u043du043du043eu0439 tube set through consistent u043au043eu043fu0438u0440u043eu0432u0430u043du0438u00a0 as transition the external radius of giba u043eu0440u0435u0431u0440u0435u043du043du043eu0439 tubes on cd the front clamp and the first u0441u043eu0435u0434u0438u043du0435u043du0438u00a0 u0438u0432u043eu043bu0438u043du0435u0439u043du0443u044e trajectory followed by parts of the flexible element rigid with the total length of the u0442u00a0u0433u0430u043cu0438 u0440u0443u0436u043du043eu0433u043e radius giba u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipe with the axis.the center of curvature giba knee.;3. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the minimum and the minimum possible radius giba is 1...2,0 radius giba u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes while maintaining the ribs and the removal of all the rib or ribs on the opposite of the station relative to the center of curvature radius of giba knee serp.;4. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the u0433u0438u0431u0435 u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipe radius less than 1.8 radius u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes, u043eu0440u0435u0431u0440u0435u043du043du0430u00a0 pipe at the sites of u0433u0438u0431u043eu0432 by internal radius of giba is station remote ribs, u043fu0435u0440u043fu0435u043du0434u0438u043au0443u043bu00a0u0440u043du044bu0445 axis u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipe depth equal to 0.1...1,0 height ribs u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes and the length of u0443u0447u0430u0441 tch the ribs equal to 1.1.1.3 section length of the internal radius of giba and plot from the u043eu0441u043du043eu0432u0430u043du0438u00a0 ribs has the form of u0440u0430u0434u0438u0443u0441u043du043eu0433u043e u043eu043au0440u0443u0433u043bu0435u043du0438u00a0 or u043fu0440u00a0u043cu043eu0443u0433u043eu043bu044cu043du0443u044e, recommending to form instructions u0440u0443u043cu0435u043du0442u0430 u0434u043bu00a0 u0443u0434u0430u043bu0435u043du0438u00a0 ribs, with the first and subsequent stations remote ribs opposites in u0433u0438u0431u043au0435 knees u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes in u0437u043cu0435u0435u0432u0438u043au043eu0432u044bu0439 element and u043au0440u0430u0442u043du044b or u043au0440u0430u0442u043du044b among tribes.;5. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the internal pipe bending u0446u0435u043bu044cu043du043eu043eu0440u0435u0431u0440u0435u043du043du043eu0439 u0432u044bu043fu043eu043bu043du00a0u044eu0442 with radius larger than 1.0 u043eu0440u0435u0431u0440u0435u043du043du043eu0439 giba radius pipe removal system or part of the ribs on the opposite knee coils attached to the center of curvature radius of giba.;6. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the axial force u0441u0436u0430u0442u0438u00a0 u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes in u0433u0438u0431u043au0435 u following knee u043fu043eu0434u0434u0435u0440u0436u0438u0432u0430u0435u0442u0441u00a0 u043fu043eu0441u0442u043eu00a0u043du043du044bu043c in the u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du0438u00a0 station g methods attached to points in the u0436u0435u0441u0442u043au043eu0437u0430u043au0440u0435u043fu043bu0435u043du043du044bu0445 stations fixation pipes in towards the centre u043eu0441u0435u0432u043eu043c giba.;7. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the pipe is u043fu0435u0440u0435u043cu0435u0449u0435u043du0438u00a0 toward to the center of curvature of the knee by u0432u043eu0437u0434u0435u0439u0441u0442u0432u0438u00a0 at rear and front clamp u0438u0437u0433u0438u0431u0430u044eu0449u0438u043c wuxi liam and the giba spatial u following knee u043eu0440u0435u0431u0440u0435u043du043du0443u044e pipe being replaced in the area through which the steam pipes u0441u043cu0435u0449u0435u043du0438u00a0 giba the u043bu043bu0435u043bu044cu043du043e giba at the corner of 1.0 5.;8. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the bending pipes are sufficient u0434u043bu00a0 various shaped profiles transverse u0441u0435u0447u0435u043du0438u00a0 u0432u044bu043fu043eu043bu043du00a0u044eu0442 similarly listed items; the profile of the bed u0434u043bu00a0 pipes with the outer profile are sufficient u0437u0435u0440u043au0430u043bu044cu043du043eu043cu0443 u043eu0440u0435u0431u0440u0435u043du043du043eu0439 pipes.