Method for disassembling threaded ring of main steam valve
A threaded ring and main steam technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of laborious and time-consuming disassembly of threaded rings, increase preload force, etc., and achieve the effect of improving work efficiency
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[0019] The present invention will be further described below in conjunction with the drawings.
[0020] Such as figure 1 with figure 2 As shown, a method for removing the threaded ring of a main steam valve includes the following steps:
[0021] In the first step, a heating device is laid on the outer surface of the valve housing 1, and a number of temperature measuring elements are evenly arranged on the outer wall of the valve housing and under the heating device;
[0022] The second step is to evenly put the refrigeration articles in the inner cavity of the threaded ring 2, and evenly set a number of temperature measuring elements on the outer wall of the threaded ring;
[0023] The third step is to install the special disassembly tool 6 for the threaded ring on the disassembly opening of the side wall of the threaded ring. A booster rod 10 is fixed above the special disassembly tool, and the upper end of the booster rod is suspended on the crane sling;
[0024] Step 4. When it is d...
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