Purging connecting device of annealing inner wall of well annealing furnace
A connecting device and an annealing furnace technology, applied in the direction of furnaces, furnace types, heat treatment furnaces, etc., can solve the problems of incomplete purging of the inner wall of copper pipes, increase the workload of workers, and reduce production efficiency, etc., to achieve a significant clamping effect, Increased effective contact area and good airtightness
Inactive Publication Date: 2015-04-22
SHENYANG LIGONG UNIV
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Problems solved by technology
[0004] The first type of connecting device has a relatively simple structure, but often has the problem of poor airtightness, resulting in the problem that the inner wall of the copper pipe is not completely purged, or even partially unpurged; the second type of connecti
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] A purge connection device for annealing the inner wall of a well-type annealing furnace, including an outer shell 1, a clamping mechanism group and a purge pipe 2, the purge pipe 2 is a conical pipe, and the rear end of the purge pipe 2 is integrally connected with an outer The hexagonal nut 3 and the purge pipe 2 are installed in the outer shell 1, the large-diameter end of the purge pipe 2 is threadedly connected with the outer shell 1, and the connection port 4 is connected with the inner hole of the hexagonal nut 3 by threads;
[0021] The clamping mechanism group includes four identical clamping mechanisms, namely the first clamping mechanism 5, the second clamping mechanism 6, the third clamping mechanism 7 and the fourth clamping mechanism 8;
[0022] The first clamping mechanism 5 includes forward ratchet 9, reverse ratchet 10, non-return ratch...
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The invention discloses a purging connecting device of an annealing inner wall of a well annealing furnace. The purging connecting device comprises an outer shell, four clamping mechanisms and a purging pipe, wherein the purging pipe is arranged inside the outer shell, and the clamping mechanisms are arranged on the outer shell. According to the purging connecting device, on the premise of no change of a copper coil prophase process and no flaring of a pipe, rapid and effective connection of pipes with various outer diameters of 13-25mm and wall thicknesses of 0.18-1.2mm is realized, the purging connecting device is remarkable in connection, simple in connection operation, and high in efficiency, and has good air impermeability. A conical section of the purging pipe has a small taper angle, so that an effective contact area of a tapered pipe and the pipe can be increased, and the sealing performance is further enhanced; a positive ratchet wheel is in contact with the pipe by adopting relative reverse teeth so that the pipe is very difficultly separated from the ratchet wheel once ratchet teeth are screwed in the outer surface of the pipe, and thus a clamping function is very remarkable.
Description
technical field [0001] The invention relates to a pipe inner wall purging connection device, in particular to an inner wall purging connection device used for annealing TP2 copper pipes in a well-type annealing furnace. Background technique [0002] The production of copper light tubes requires ensuring the smoothness and dimensional accuracy of the inner and outer walls of the copper tubes, and at the same time, it is especially required that the inner walls have no residual oil, no odor, no oxidation, no discoloration and other defects. [0003] The means to control defects such as residual oil, odor, oxidation, and discoloration of the tube billet is to use purge during the annealing process. There are two main types of traditional purge connection devices: one is that copper pipes are used between the copper coil pipe and the air supply pipe. The method of directly inserting into the purge joint, and screwing the copper pipe on both sides; the second is to expand the pip...
Claims
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Login to View More IPC IPC(8): C21D9/08C21D1/74C22F1/08
Inventor 刘劲松陈大勇吴金虎陈晨
Owner SHENYANG LIGONG UNIV