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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

Active Publication Date: 2012-04-18
张伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the original patent works well, it will be eliminated due to leakage defects

Method used

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  • Circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and manufacturing process thereof
  • Circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and manufacturing process thereof
  • Circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and manufacturing process thereof

Examples

Experimental program
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Effect test

Embodiment

[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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PUM

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Abstract

The invention discloses a circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and a manufacturing process thereof. The heat exchanger comprises two headers, wherein a tap water communication pipe is fixedly connected between the two headers; a hot air heat supply pipe passes through the tap water communication pipe; each header is formed by welding two arc plates; the plate edges of the arc plates are flanged outwards; the plate edges of the two arc plates are aligned with each other and are subjected to edge-pinching and self-fluxing welding to form a circular tubular header cylinder body; head blocking plates of the headers are flanged outwards and are embedded at two ports of the circular tubular headers; and the two edges are aligned with a pipe wall surface, are spliced and are subjected to the edge-pinching and the self-fluxing welding to form the headers. An installation hole is punched on each arc plate; the installation hole is stretched inward an arc to form an edge; the aperture and the height of are stretched according to the arc plates; and the end surfaces of the two ends of the tap water communication pipe are subjected to R-angle cutting according to the stretching hole diameter and the stretching height of the arc plates, and then the tap water communication pipe is inserted into the installation holes stretched from the arc plates, are matched with each other, are spliced and are subjected to edge-pinching and self-fluxing welding connection. In the heat exchanger, welding seams are spliced, the edge-pinching welding is easy to realize, and water leakage is avoided; and the heat exchanger is good in pressure-bearing performance, and low in maintenance cost.

Description

technical field [0001] The invention relates to a heating water heater installed and used on the heating pipeline of civil households, which can be used for heating and exchanging hot tap water for bathing, especially relates to a stainless steel water storage or instant heating round pipe connected and connected, pinched A welded pressure water exchange heater and its manufacturing process. Background technique [0002] The applicant's related patents: applied on June 10, 2008, authorized on June 30, 2009, the patent number is 200820024167.1, the authorized announcement number is CN201251383Y, the name of the utility model: "Header diversion heat storage countercurrent heat exchanger" . It was applied on January 7, 2011, authorized on September 14, 2011, and the announcement number is CN201974076U. The name of the utility model is: combined-phase instantaneous heating type countercurrent heat exchanger. [0003] Most of the original patents are designed for the heat excha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D19/00F28F9/18F28F21/08
Inventor 张伟张冲
Owner 张伟
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