Mixing tube heat exchanger system for heating / cooling flowable materials
The mixing inner tube with reciprocal mix elements and guide-deflection element in the outer space addresses inefficiencies in conventional heat exchangers, enhancing energy transfer for high-viscosity and low-thermal-conductivity materials.
Patent Information
- Application Number
- DE202025000670
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-07-03
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Conventional round-tube heat exchangers are inefficient for high-viscosity and low-thermal-conductivity materials, lacking an effective mechanism for enhancing energy transfer.
A mixing inner tube with reciprocal mix elements and a guide-deflection element in the outer space, optimizing flow patterns and energy transfer by altering the flow direction and medium distribution.
Enhances energy transfer efficiency for flowable substances with high viscosity and low thermal conductivity, improving heat exchange performance.
Smart Images
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Abstract
Description
TECHNICAL FIELD
[0001] The invention relates to a round tube heat exchanger with mixing / mixing inner tubes Fig. 1 for heating or cooling flowable materials. Flowable materials can also be those with low to high viscosity and lumpy components.
[0002] The areas of application for such heat exchangers include the chemical, pharmaceutical, biogas production, and food production and processing industries. Regarding the classification and differentiation of the new heat exchanger, which has no precedent in the state of the art with regard to its mixed tube configuration arranged in the interior and the internal components installed in the exterior. STATE OF THE ART
[0003] Round-tube heat exchangers for flowable materials with or without lumpy particles or with such admixtures (e.g., fibers) are currently designed with smooth or swirl inner tubes. The materials to be treated are conveyed within the inner tubes of the heat exchanger. The media for heating or cooling are conveyed outside the inner tubes.
[0004] In connection with the present invention, the focus is on optimizing efficiency compared to conventional heat exchangers, especially for high-viscosity and low-thermal-conductivity materials. MIXED TUBE HEAT EXCHANGER SYSTEM
[0005] The invention is based on a state-of-the-art round tube heat exchanger. However, with an innovation of the inner tube, as a mixed / mix inner tube Fig. 1, which, with its mixing function, ensures a significantly better energy transfer when heating or cooling the flowable substances (P).
[0006] Another essential feature of the invention, which has an independent inventive idea, is a guide element in the outer space of the heat exchanger. MIX / MIX INNER PIPE
[0007] The main invention concerns the mixing / mixing inner tube ( Fig. 1), which is characterized by its reciprocal mix elements ( Fig. 2+ Fig. 2a)which are arranged in the longitudinal direction of the pipe axis, is inventively new.
[0008] The mix elements (ME) consist of a point-like deformation along the longitudinal axis of the inner tube, extending from the outer side to the center of the inner tube. The mix elements are variable in depth (MET), with all shapes of the mix elements (ME) being rounded.
[0009] The arrangement and number of mixing elements (ME) in the round pipe is determined according to the flowable materials to be treated.
[0010] The Mix Elements (ME) can be installed in smooth or twisted pipes. The Mix Elements (ME) design can be used on all common pipe sizes. Description of the Mix function
[0011] The flow area (P) of the flowable substances is determined by the mix element (ME+MEL) see ( Fig. 2+ Fig. 2a) is directed from the edge area to the center of the pipe and thus a displacement of the inner flow area to the edge area of the pipe takes place.
[0012] This flow change is further enhanced by the alternating arrangement of the mixing elements (ME), seen from the pipe cross-section ( Fig. 2a) from the 0°---90°---180°---270° axis, then continuously repeat to 0°---90°, etc. The spacing (MEA) of the mixing elements (ME) can vary depending on the pipe size. HEAT EXCHANGER OUTDOOR SPACE
[0013] The invention further relates to the guide-deflection element (5), which is mounted on the inside of the outer tube in the exterior space of the heat exchanger. It consists of a ring-shaped or spiral-shaped wire that rests directly against the outer tube (3) at a fixed distance along the axial length. This optimizes the flow of the heating or cooling medium (HKM) around the inner tubes by slowing the flow (HKMS) along the outer tube (3) and thus directing it more strongly toward the inner tubes. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] A more detailed description of the invention will become apparent from the following description and the accompanying drawing figures as well as from the claims. While the invention is realized in a variety of embodiments, preferred embodiments of a mixing tube heat exchanger system (100, 200) according to the invention with an inner tube according to the invention with mixing elements ( Fig. 1)- and -outside space with guide deflection element (5) shown.
[0015] It shows Fig. 1 a perspective view of the mixing / mixing inner tube Fig. 2 a meridian section through the mixing / mixing inner tube ( Fig. 1) In the area of a mix element (ME) Fig. 2a a view A from the radial side of the mixing / mixing inner tube ( Fig. 1) with the arrangement of the mix elements (ME) Fig. 3 a representation of a multi-tube heat exchanger with mixing / mixing inner tubes ( Fig. 1) and guide deflection element (5). Fig. 3a a meridian section through the multi-tube heat exchanger ( Fig. 3) Fig. 4 a meridian cross-section through a multi-tube heat exchanger ( Fig. 3) Fig. 4a a meridian longitudinal section through a multi-tube heat exchanger according to ( Fig. 3) according to a value in ( Fig. 4) Cutting arrangement marked “AA”. Fig. 5 a meridian cross-section through a mono-tube heat exchanger Fig. 5a a meridian longitudinal section through a mono-tube heat exchanger according to ( Fig. 5) according to a value specified in ( Fig. 5) Cutting arrangement marked “BB”. LIST OF REFERENCE SYMBOLS OF THE ABBREVIATIONS USED 100 multi-tube heat exchangers (multiple inner tubes) 200 mono-tube heat exchangers (one inner tube) 2 Mix / Mix inner tube 3 heat exchanger outside / jacket pipe 4 heat exchanger tube sheet flange 5 Guide deflection spiral P flowable material PR fluid material transfer chamber (heat exchanger interior) PRS flowable material flow path HKM heating / cooling medium HKMR heating / cooling medium transfer chamber (heat exchanger exterior) HKMS heating / cooling medium flow pattern ME Mix Element MET mix element depth (variable) MEL Mix Element - Length (variable) MEA Mix Element - Distance between elements (variable)
Claims
[1] Mixing tube heat exchanger (100, 200) for heating / cooling flowable materials (P), characterized by , the inner tube (2) carrying the product is designed with several recesses (ME) running in the longitudinal direction of the tube axis. [2] With regard to claim 1 characterized by , the recess (ME) is designed in an elongated rounded shape, towards the axis center of the tube (2). [3] With regard to claim 2 characterized by , All transitions of the recess (ME) to the tube (2) are rounded. [4] With regard to claim 2 characterized by , the distance of the recess (ME) to the pipe axis (2) is determined according to the respective application. [5] With regard to claim 1 characterized by , which the recess (ME), on the entire length of the tube (2), in radial view, occupies a continuously, repeatedly changing position (ME1-4). [6] With regard to claim 5 characterized by, the distances or number of recesses (ME), in the longitudinal direction of the pipe (2), are determined according to the respective applications. [7] The tube heat exchangers (100,200) are designed in conjunction with a spiral-shaped guide / deflection element (5) on the inner outer wall (3).