EP1956329A1 - Dispositif de refroidissement de fluides - Google Patents

Dispositif de refroidissement de fluides Download PDF

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Publication number
EP1956329A1
EP1956329A1 EP07002694A EP07002694A EP1956329A1 EP 1956329 A1 EP1956329 A1 EP 1956329A1 EP 07002694 A EP07002694 A EP 07002694A EP 07002694 A EP07002694 A EP 07002694A EP 1956329 A1 EP1956329 A1 EP 1956329A1
Authority
EP
European Patent Office
Prior art keywords
housing
heat exchange
bandage
longitudinal direction
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07002694A
Other languages
German (de)
English (en)
Other versions
EP1956329B1 (fr
Inventor
Herbert Dipl.-Ing. Hüning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oschatz GmbH
Original Assignee
Oschatz GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oschatz GmbH filed Critical Oschatz GmbH
Priority to ES07002694T priority Critical patent/ES2377991T3/es
Priority to EP20070002694 priority patent/EP1956329B1/fr
Publication of EP1956329A1 publication Critical patent/EP1956329A1/fr
Application granted granted Critical
Publication of EP1956329B1 publication Critical patent/EP1956329B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods

Definitions

  • the invention relates to a device for cooling fluids, in particular gases.
  • the cooling medium used is preferably boiling water and / or steam.
  • a device for cooling gases is known in practice in the form of a so-called flue-tube heat exchanger.
  • a plurality of linear horizontally arranged pipes is passed through a cylindrical water-filled cooling space.
  • the gas to be cooled is passed.
  • evaporation of the cooling water present in the cylindrical cooling space takes place.
  • the two ends of the cylindrical cooling space are limited by relatively thick metal plates or tube plates, which are penetrated by the pipes.
  • the pipes are welded at their ends to the metal plates, respectively.
  • thermal expansions lead to constraints or stresses that can affect the functionally reliable fixation of the pipes to the metal plates. Incidentally, there may be troublesome corrosion in the gaps between the piping and the metal plates.
  • the invention has the technical problem of providing a device of the type mentioned, with the disadvantages described above can be avoided in a simple manner and nonetheless allows a very reliable, effective and energy-efficient cooling.
  • the device according to the invention should be achieved in particular that the disadvantages occurring in connection with the above-mentioned smoke tube heat exchanger can be completely eliminated.
  • the housing of the device is at least partially cylindrical.
  • the device or the housing of the device is designed substantially cylindrical.
  • the cylindrical configuration of the heat exchanger allows an operating pressure of in particular 1 to 40 bar, preferably 1 to 25 and particularly preferably 1 to 15 bar.
  • the bottom of the cylinder in operation extends horizontally or substantially horizontally along the longitudinal axis of the cylindrical housing.
  • the longitudinal axis of the cylinder during operation of the device is oriented horizontally or substantially horizontally.
  • the longitudinal axis of the cylinder corresponds in this embodiment, the housing longitudinal direction.
  • the shape of the end faces of the housing is preferably circular, but may also assume deviating oval or polygonal shapes.
  • a spiral tube consists of two spiral-shaped segments, of which a first segment winds from the outside to the inside.
  • the U-shaped transition piece which preferably connects the first segment to a second spiral segment, which winds from the inside to the outside, expediently adjoins the winding with the smallest diameter.
  • the spiral tube deviates from a substantially planar configuration and is designed, for example, as a pyramidal spiral tube.
  • a plurality or a plurality of heat exchange elements are arranged one behind the other in the longitudinal direction of the housing.
  • a plurality of spiral tubes in the longitudinal direction of the housing is arranged one behind the other.
  • the planes of the spiral tubes are expediently arranged perpendicularly or substantially perpendicular to the housing longitudinal axis or housing longitudinal direction.
  • a parallel connection of the heat exchange elements is provided with respect to the flow through the heat exchange elements with the cooling medium.
  • the heat exchange elements or spiral tubes are recommended to flow individually through the cooling medium.
  • at least two heat exchange elements / spiral tubes can be flowed through in series by the cooling medium. Then, at least two heat exchange elements / spiral tubes are successively flowed through by the cooling medium. Both embodiments (parallel connection and series connection) can also be realized in a device according to the invention.
  • a heat exchange element / spiral tube is held by at least one bandage element in the housing.
  • a plurality of such are for a heat exchange element / spiral tube
  • Bandage elements provided which are expediently spaced from each other.
  • the bandage elements are preferably designed as bandage sheets.
  • a bandage element expediently extends linearly in the radial direction from the middle of the housing to the housing wall.
  • a bandage element may also extend only over part of the spiral tube or over part of the turns of a spiral tube in the said radial direction.
  • a bandage element has a plurality of openings, wherein the associated spiral tube or pipe sections of this spiral tube pass through these openings.
  • at least two, preferably at least three and very preferably at least four such bandage elements are associated with a spiral tube.
  • a spiral tube 6 bandage elements are assigned.
  • the bandage elements assigned to a spiral tube are distributed at equal intervals over the circumference of the spiral tube.
  • each spiral tube such bandage elements are assigned.
  • the bandage elements are not connected to one another by spiral tubes adjacent in the longitudinal direction of the housing. The bandage elements secure the position of the spiral tubes in the housing.
  • this heat exchange element / spiral tube can be easily turned off or separated from the cooling medium supply. The then taking place heating of the heat exchange element / spiral tube and the resulting thermal expansion but have no negative effects on the device or their reliability because of the free mobility of the pipe sections.
  • the openings provided in the bandage elements for a spiral tube further ensure compliance with a certain distance between the turns of the spiral tube.
  • a bandage element in the longitudinal direction of the bandage element has spacing elements or plates arranged one behind the other, which essentially prevent displacements of the tube sections or the spiral tube in the longitudinal direction of the bandage element and ensure said distances between the turns of the spiral tube.
  • a spiral tube is supported on two opposite bearing points on the inside of the housing wall.
  • two opposite bandage elements or preferably the linear wall-side extensions of these bandage elements are supported here. The support takes place here in each case with play to the inside of the housing wall.
  • the invention is based on the finding that, with the device according to the invention, it is possible to cool fluids in a simple, effective and functionally reliable manner. Of particular importance is that due to the design options according to the invention constraints due to thermal expansion can be minimized or eliminated and thus adverse effects on the device components can be excluded by thermal expansion. In comparison with the smoke tube heat exchanger known from the prior art explained in the introduction, the susceptibility to corrosion can furthermore be effectively reduced or minimized. In the apparatus according to the invention, the operator is also free in the choice of dosing agent for adjusting the pH of the cooling medium. By lying in operation arrangement of the device according to the invention can be worked very compact and the device of the invention is characterized in this respect by a relatively low height.
  • the devices according to the invention can be connected in a little complex and space-saving manner in a row.
  • the device according to the invention with relatively low cost can be realized.
  • the individual heat exchange elements - preferably spiral tubes - of the device according to the invention can be kept in their position in a simple and functionally reliable manner. In case of failure of a heat exchange element / spiral tube, the embodiment of the invention enables the targeted shutdown of this heat exchange element / spiral tube, without causing disadvantageous constraints due to thermal expansion.
  • the figures show a device according to the invention for cooling fluids.
  • the device is also referred to here as a heat exchanger.
  • the device according to the invention has a housing 1, which is preferably cylindrical in the exemplary embodiment (see Fig. 1 ).
  • the housing 1 is arranged during operation of the device with the proviso that the housing longitudinal direction or the central longitudinal axis L is oriented horizontally or substantially horizontally.
  • the central longitudinal axis L is expediently oriented parallel or substantially parallel to the ground.
  • the housing 1 is arranged as a horizontal cylinder.
  • the central longitudinal axis L thus corresponds here to the cylinder axis.
  • the housing 1 has an inlet opening 2 on one end face and an outlet opening 3 on the other opposite end face.
  • the fluid to be cooled enters the housing 1 through the inlet opening 2, flows through the housing in the longitudinal direction of the housing or in the direction of the central longitudinal axis L and exits the housing 1 again through the outlet opening 3.
  • a gas to be cooled enters the housing at a pressure of 1 to 15 bar, preferably 1.5 to 10 bar, preferably 2 to 8 bar, for example about 4 bar.
  • a plurality of heat exchange elements which are formed as spiral tubes 4 and are each traversed by a cooling medium.
  • the cooling medium may be boiling water in the exemplary embodiment.
  • each spiral tube 4 is formed from two segments.
  • the first segment winds from the inlet port 5 or from the housing wall spirally in the direction of the central longitudinal axis L of the housing 1 and the second segment of this spiral tube 4 winds in the opposite direction from the inside to the outside and ends at the outlet port 6.
  • Preferably and in the exemplary embodiment run two segments of a spiral tube 4 parallel or substantially parallel to each other and spaced from each other.
  • the first and second segments in the exemplary embodiment are connected to one another via a U-shaped transition piece 7.
  • a spiral tube 4 is preferably and in the embodiment in a plane or substantially in a plane. According to a preferred embodiment, two or more spiral tubes 4 may be arranged in such a plane. It is within the scope of the invention that the turns of the spiral tubes 4 are arranged at a distance from each other. Between the turns of a lying in a plane spiral tube 4 and between the turns of the two or more lying in a plane spiral tubes 4 are preferably not shown in the figures distance elements for maintaining the distance between the turns introduced.
  • the spacers may be, for example, cardboard elements.
  • a plurality of each lying in a plane spiral tubes 4 is arranged one behind the other.
  • the turns or pipe sections of the spiral tubes 4 in the openings 11 of the bandage elements 9, 10 in the extension direction of the pipe sections or in the direction of the longitudinal axis of the openings 11 are movable. That is in the Fig. 3 indicated by double arrows. In other words, the pipe sections of the spiral tubes 4 pass through the openings 11 of the bandage elements 9, 10 with play, so that this movement in the longitudinal direction is possible. This is also on Fig. 4 directed. In Fig. 4 It can also be seen that distancing elements 13 designed as spacer plates are provided transversely to the longitudinal direction of the linear bandage elements 9, 10 and connect an upper side 14 and a lower side 15 of a bandage element 9, 10 to one another.
  • distancing elements 13 ensure that the pipe sections or the individual windings of a spiral pipe 4 are held in position or at a distance.
  • the turns of a spiral tube 4 at equal intervals from each other or substantially equidistantly spaced from each other. Accordingly, in Fig. 4 the distancing elements 13 distributed.
  • the mobility or displacement the spiral tubes 4 in the openings 11 of the bandage elements 9, 10 has special significance in the context of the invention. In this way it is achieved that no undesired constraints occur during thermal expansion.
  • a separately operated spiral tube 4 can be switched off in the event of a fault or in the event of a defect, or can be disconnected from the cooling medium supply without resulting in any constraints.
  • the disconnected spiral tube 4 will inevitably heat up or heat and thereby heat-induced strains. Due to the displaceability of the pipe sections of the spiral tubes 4 in the openings 11, these strains are compensated or intercepted, because the spiral tube 4 can move as it were uhrfederartig heat-related.
  • a cylindrical hollow central tube 8 in the Fig. 1 and 2 it can be seen that extends along the central longitudinal axis L of the housing 1, a cylindrical hollow central tube 8 inside.
  • This central tube 8 acts primarily as a displacement body to prevent gas flow through the middle of the housing or to avoid unwanted gas bypasses.
  • the central tube 8 is, however, according to a variant also used in other ways.
  • a subset of the fluid to be cooled can be diverted into the central tube 8. This has the consequence that this subset is not or hardly cooled and exits the central tube 8 with substantially unchanged temperature in the region of the outlet opening 3.
  • FIG. 1 shows three vertical supports 16 for supporting the central tube 8.
  • the central tube 8 is only one of these vertical supports 16 - in the embodiment of the central vertical support 16 - firmly connected.
  • the Central tube 8 may, however, extend or displace relative to the two other vertical supports 16 in its longitudinal direction. Also in this way, constraints caused by thermal expansion are avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP20070002694 2007-02-08 2007-02-08 Dispositif de refroidissement de fluides Not-in-force EP1956329B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES07002694T ES2377991T3 (es) 2007-02-08 2007-02-08 Dispositivo para enfriar fluidos
EP20070002694 EP1956329B1 (fr) 2007-02-08 2007-02-08 Dispositif de refroidissement de fluides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070002694 EP1956329B1 (fr) 2007-02-08 2007-02-08 Dispositif de refroidissement de fluides

Publications (2)

Publication Number Publication Date
EP1956329A1 true EP1956329A1 (fr) 2008-08-13
EP1956329B1 EP1956329B1 (fr) 2011-11-23

Family

ID=38255853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070002694 Not-in-force EP1956329B1 (fr) 2007-02-08 2007-02-08 Dispositif de refroidissement de fluides

Country Status (2)

Country Link
EP (1) EP1956329B1 (fr)
ES (1) ES2377991T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2549197A3 (fr) * 2011-07-19 2014-03-26 Eroglu Isi Endustri Cihazlari Sanayii Ve Ticaret Anonim Sirketi Panneau utilisé dans les systèmes à circulation de fluides

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228463A (en) * 1961-06-12 1966-01-11 Sulzer Ag Heat exchanger
DE1939564A1 (de) * 1968-08-06 1970-02-12 Atomic Power Construction Ltd Aufhaengesystem fuer Vielfach-Rohranordnungen,insbesondere in Waermetauschern von Kernreaktoren
DE2433213A1 (de) * 1974-07-10 1976-01-29 Linde Ag Waermeaustauscher mit gewickelten rohrbuendeln
EP0146817A2 (fr) * 1983-12-21 1985-07-03 Laporte Industries Limited Echangeur de chaleur
EP0481842A1 (fr) * 1990-10-12 1992-04-22 Valeo Systemes D'essuyage Dispositif de chauffage d'un liquide de lave-glace, notamment pour véhicule automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228463A (en) * 1961-06-12 1966-01-11 Sulzer Ag Heat exchanger
DE1939564A1 (de) * 1968-08-06 1970-02-12 Atomic Power Construction Ltd Aufhaengesystem fuer Vielfach-Rohranordnungen,insbesondere in Waermetauschern von Kernreaktoren
DE2433213A1 (de) * 1974-07-10 1976-01-29 Linde Ag Waermeaustauscher mit gewickelten rohrbuendeln
EP0146817A2 (fr) * 1983-12-21 1985-07-03 Laporte Industries Limited Echangeur de chaleur
EP0481842A1 (fr) * 1990-10-12 1992-04-22 Valeo Systemes D'essuyage Dispositif de chauffage d'un liquide de lave-glace, notamment pour véhicule automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2549197A3 (fr) * 2011-07-19 2014-03-26 Eroglu Isi Endustri Cihazlari Sanayii Ve Ticaret Anonim Sirketi Panneau utilisé dans les systèmes à circulation de fluides

Also Published As

Publication number Publication date
EP1956329B1 (fr) 2011-11-23
ES2377991T3 (es) 2012-04-04

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