Circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and manufacturing process thereof
A technology of pressure-bearing heat exchangers, which is applied in the fields of kneading welding pressure-bearing water heaters, stainless steel water storage or instant heating round pipes to achieve the effects of reducing use costs, high thermal efficiency, and reducing difficulty
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[0052] Such as figure 1 , Figure 5 As shown, in the present invention, the two D-shaped headers of the original patent are updated into 4 arc plates, and the two arc plates are punched at the center of the arc and stretched 2 to 2.5 mm inwards, and the edges of the arc plates face outwards. Flanging 1~1.5mm, tap water connecting pipe according to the drawing hole diameter and drawing height of the circular arc plate, the end faces of the two ends are cut at R angle, inserted into the drawing hole of the circular arc plate, consistent and connected, pinched edge self-fluxing flat welding The heating pipe is inserted into the tap water connecting pipe, the two ends of the heating pipe are punched on one side at a distance of 8mm from the end, and the other end is punched below the corresponding surface, and the two corresponding holes are stretched inward by 1.5-2mm to connect the heat The straight pipe is cut according to the drawing hole diameter and drawing height of the he...
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