TUBE BUNDLE HEAT EXCHANGER
MX434797BActive Publication Date: 2026-06-12WIELAND WERKE AG
Patent Information
- Authority / Receiving Office
- MX · MX
- Patent Type
- Patents
- Current Assignee / Owner
- WIELAND WERKE AG
- Filing Date
- 2023-05-08
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
Existing methods for connecting tubes of a tube bundle heat exchanger to a tube sheet are inefficient, costly, and do not ensure high-quality, gas-tight and pressure-resistant connections.
Method used
The tubes are connected to the tube sheet using a material joint, such as laser welding, with outer fins on the tubes acting as barriers to control the flow of joining material, ensuring a defined and complete seal at the joint, while allowing for efficient heat transfer.
Benefits of technology
This method achieves reliable, high-quality connections with reduced effort, resulting in a more compact and efficient heat exchanger design with lower operating costs and improved mechanical stability.
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Smart Images
Figure MX434797B0
Abstract
The invention of interest relates to a tube bundle heat exchanger (1) having a tube sheet (3), which together define an interior (4) of the tube bundle heat exchanger (1). The tube bundle heat exchanger comprises a tube bundle having a plurality of heat exchanger tubes (5) located in the interior (4) and through which a first fluid flows, the tubes being optionally supported by additional support plates (6). The heat exchanger tubes (5) have integral circumferential helical ribs (51) formed on the outside of the tube, said ribs having a rib foot, rib flanks, and a rib tip, and a channel having a channel bottom is formed between the ribs (51). The tube sheet (3) has recesses as passage points, each recess having an inner surface.The outer ribs (51) of the heat exchanger tubes (5) protrude at least into the cavities of the tubesheet (3), forming a joining groove in each case between the inner surface of the cavity and the outer rib (51) of a heat exchanger tube (5) located within the recess. The heat exchanger tubes (5) are integrally bonded to the tubesheet (3) by means of bonding material, and considering the outer rib (51), whose integral bond is formed only in a first portion of the recess extending from the front face of a heat exchanger tube (5) in the axial direction, this first part of the joining gap being filled with bonding material, so that a second part of the recess at the joining intersection is not filled with bonding material, the heat exchanger tube (5) further has an outer rib (51) on the outside of the tube in the region of the second part.
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