Freezing pipe welding seam cracking prevention mechanism and freezing pipe welding seam cracking prevention method
A preventive method, technology of freezing tubes, applied in infrastructure engineering, fixed tubular conduit components, lighting and heating equipment, etc., can solve problems such as weld cracking of frozen tubes, avoid waste, improve freezing efficiency, and ensure heat exchange effect of effect
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Embodiment 1
[0030] Such as figure 1 As shown, the frozen pipe weld crack prevention mechanism includes a frozen pipe 4, a liquid supply pipe 3, a partition 6 and a liquid return pipe 5;
[0031] The dividing plate 6 divides the freezing pipe 4 into the first freezing pipe and the second freezing pipe, the first end of the liquid supply pipe 3 passes through the dividing plate 6 and stretches into the second freezing pipe through the first freezing pipe, and the liquid return pipe 5 The first end passes through the dividing plate 6 through the first freezing pipe and stretches into the second freezing pipe; the first end of the liquid supply pipe 3 and the first end of the liquid return pipe 5 are arranged in parallel in the first freezing pipe and are mutually independent. Contact; avoid heat exchange between the low temperature brine in the liquid supply pipe and the higher temperature brine in the return pipe.
[0032]The second end of the liquid supply pipe 3 is in fluid communication...
Embodiment 2
[0039] The method for preventing cracking of frozen pipe welds uses the preventing mechanism for preventing cracks of frozen pipe welds of embodiment 1 to prevent, including the following steps:
[0040] A. Decentralization of freezing pipes: According to construction requirements, the freezing pipes are lowered into the freezing holes, and the adjacent freezing pipes are connected by welding;
[0041] B. Insert the double helix structure formed by the liquid supply pipe 3 and the liquid return pipe 5 into the freezing pipe 4, and the distances between the side walls of the liquid supply pipe 3 and the liquid return pipe 5 and the inner side wall and the bottom wall of the freezing pipe 4 are greater than zero ;
[0042] C. Fill the heat transfer medium 2 into the second freezing tube, and fix the partition plate 6 in the freezing tube 4, and fill the thermal insulation material 1 into the first freezing tube; the installation position of the partition plate 6 is the freezing ...
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