EP3329202A1 - Échangeur de chaleur rotatif - Google Patents

Échangeur de chaleur rotatif

Info

Publication number
EP3329202A1
EP3329202A1 EP15774854.2A EP15774854A EP3329202A1 EP 3329202 A1 EP3329202 A1 EP 3329202A1 EP 15774854 A EP15774854 A EP 15774854A EP 3329202 A1 EP3329202 A1 EP 3329202A1
Authority
EP
European Patent Office
Prior art keywords
rotor
heat exchanger
rotary heat
flow
fluid flow
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
EP15774854.2A
Other languages
German (de)
English (en)
Other versions
EP3329202B1 (fr
Inventor
Kai Klingenburg
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.)
Klingenburg GmbH
Original Assignee
Klingenburg 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 Klingenburg GmbH filed Critical Klingenburg GmbH
Publication of EP3329202A1 publication Critical patent/EP3329202A1/fr
Application granted granted Critical
Publication of EP3329202B1 publication Critical patent/EP3329202B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • 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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/047—Sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/104—Heat exchanger wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1096—Rotary wheel comprising sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2230/00—Sealing means

Definitions

  • the invention relates to a rotary heat exchanger, the first of a fluid flow, such as an outside air or supply air flow, and a second fluid flow, eg a Abluft fashion. Exhaust air flow, can be flowed through in countercurrent, with a rotatably mounted rotor having a first flow sector for the first fluid flow and a second flow sector for the second fluid flow, which it passes during rotation, a holder in which the rotor is rotatably supported , And a sealing device, by means of which the inflow side of the first fluid flow and the outflow side of the second fluid flow from the downstream side of the first fluid flow and the inflow side of the second fluid flow is separable.
  • the rotor formed as a rotating storage mass must be sealed against the housing or the holder of the rotary heat exchanger. Furthermore, the two fluid streams upstream and downstream of the rotary heat exchanger must also be separated from each other or sealed. Due to these sealing measures, leakage during operation of the rotary heat exchanger can be largely avoided.
  • leakage prevention is required because otherwise, for example, the supply air quality is reduced because Abluftan ⁇ parts enter the supply air stream; Furthermore, leaks result, for example, from the outside air into the exhaust air in higher-installed benefits of a fan for the outside air or supply air, as larger amounts of air must be promoted than actually required to achieve the desired supply air volume; Also, there are impairments in the recovery performance of the rotary heat exchanger because bypass flows bypassing the rotor or storage mass reduce the overall performance of the rotary heat exchanger.
  • the present invention seeks to further develop the initially described rotary heat exchanger so that its sealing device can be simplified, with a reliable seal between the inflow and outflow sides of the two fluid streams during operation of the rotary heat exchanger should be automatically guaranteed ,
  • This object is achieved according to the invention in that the sealing device has a first seal which seals against the side of a dividing wall arranged on the inflow side of the first fluid flow, and a second seal which seals against the side of the same dividing wall arranged upstream of the second fluid flow.
  • the differential pressures at the seals are lower and independent of the differential pressure between the two fluid streams.
  • the differential pressure at the sealing device if it is designed with only one partition, is always equal to the pressure loss of the respective fluid flow in the rotor designed as a storage mass; Accordingly, this differential pressure always causes the seal to be pressed against the dividing wall in the respective direction of the fluid flow.
  • the partition wall is arranged axially spaced from both end faces on the cylindrical outer circumferential surface of the rotor and has a circular cutout whose inner diameter slightly exceeds the outer diameter of the rotor.
  • the space between the cylindrical outer circumferential surface of the rotor on the one hand and the holder on the other hand can be used for installation or assembly of the sealing device, over the end faces of the rotor formed as a storage mass projecting portions or components of the sealing device can be avoided.
  • the rotary heat exchanger according to the invention whose first seal is formed as an annular sealing lip, with a Axialdichtungs- section, on the cylindrical outer surface of the
  • Rotor sits, and a radial sealing portion which sits on the upstream side of the first fluid flow disposed side of the partition.
  • a correspondingly advantageous embodiment with regard to the second seal is achieved, if this is likewise designed as an annular sealing lip, with an axial sealing section which is seated on the cylindrical outer circumferential surface of the rotor, and a radial sealing section which is disposed on the side of the dividing wall arranged upstream of the second fluid flow sitting.
  • both seals with their Axialdich- tungsabitesen on the cylindrical outer surface of the rotor tightly fastened and with their Radialdichtungsabschnit- th in sliding and sealing abutment against each of them associated side of the partition can be brought.
  • both seals extend around the entire circumference of the rotor on the cylindrical surface, since due to the rotation of the rotor or the storage mass of each peripheral portion of the seals in both flow sectors or fluid flows and thus reaches opposite pressure differences is exposed.
  • the stability during operation of the rotary heat exchanger with high
  • the seals of the sealing device of the rotary heat exchanger according to the invention are made of a fluid-impermeable, abrasion-resistant and flexible material, e.g. formed of an artificial leather material, an extruded plastic or the like., So that the Axialdichtungsabitese of the seals can be mounted tightly on the cylindrical outer surface of the rotor and the radial sealing portions of the seals in sliding and sealing contact with the respective side of the partition can be brought.
  • both seals with their Axialdich- processing sections in sliding and sealing contact against the cylindrical outer surface of the rotor and brought with their radial sealing sections on their respective side of the Design partition tightly fastened.
  • the seal can then be provided exclusively on the respective inflow side of the flow sectors of the dividing wall, since there is always a higher pressure on the inflow side than on the outflow side.
  • the first seal is attached to the partition and slidably disposed on the cylindrical outer surface of the rotor and extends only over a peripheral portion of the circular section of the partition wall associated with the flow sector of the first fluid flow.
  • the second seal is also secured to the bulkhead and slidably disposed on the cylindrical outer surface of the rotor, wherein the second seal extends only over a peripheral portion of the circular section of the partition associated with the flow sector of the second fluid flow.
  • Figure 1 is a perspective schematic representation of a
  • Figure 2 is a front view of the embodiment of the rotary heat exchanger according to the invention shown in Figure 1;
  • Figure 3 is a perspective schematic representation of the
  • a rotary heat exchanger 1 according to the invention shown in FIGS. 1 and 2 in a perspective view and in a front view is flowed through by two fluid streams 2, 3 in countercurrent.
  • the first fluid stream 2 is an outside air or supply air stream 2
  • the second fluid stream 3 is an exhaust air or exhaust air flow 3.
  • the two fluid streams 2, 3 are shown in FIG. 1 by means of corresponding directional arrows.
  • the rotary heat exchanger 1 has an approximately square holder 4 in the illustrated embodiment with respect to its outer contour. This holder 4 surrounds a rotor 5 of the rotary heat exchanger 1 on the circumference of the rotor.
  • the rotor 5 has a cylindrical outer circumferential surface 6, which may for example consist of a suitable sheet. Furthermore, the rotor 5 has a first flow sector 7, which, as is apparent from Figure 1, from the outside air or to ⁇ air flow 2 is flowed through. Accordingly, the rotor 5 has a second flow sector 8, which is flowed through in the opposite direction to the outside air or supply air stream 2 from the exhaust air or exhaust air stream 3.
  • the rotor 5 of the rotary heat exchanger 1 is rotatably arranged around a bearing or a hub not shown in the figures.
  • the inflow side of the outside air or supply air stream 3 is tightly separated from the outflow side thereof. Accordingly, in the rotary heat exchanger 1, the downstream side of the exhaust air or exhaust air stream 3 is separated from the latter on the upstream side thereof. It should be noted that, in FIGS. 1 and 2, the rotary heat exchanger 1 is shown from the inflow side of the outside air or supply air flow 2 and the downstream side of the exhaust air or exhaust air flow 3.
  • a sealing device 9 is arranged, by means of which the arrival and outflow side of the outside air or supply air stream 2 and the exhaust air or exhaust air stream 3 are tightly separated from each other.
  • a Separiervorraum not shown in the figures is provided, by means of the outside air or supply air stream 2 upstream and downstream of the rotary heat exchanger 1 separated from the exhaust air or exhaust air stream 3 is.
  • the provided in the holder 4 sealing device 9 has a partition wall 10, the outer dimensions of which correspond to the inner dimensions of the holder 4 and which is fixed there. In its central region, the partition wall 10 with a
  • the sealing device 9 further comprises a first seal in the form of a first annular sealing lip 12 and a second seal in the form of a second annular sealing lip 13.
  • the first annular sealing lip 12 is in the illustrated embodiment of the rotary heat exchanger 1 on the upstream side of the outside air or supply air stream 2 and corresponding to the downstream side of the exhaust air or exhaust air stream 3 at the inner diameter of the circular section 11 of the partition 10.
  • the second annular sealing lip 13 is arranged on the outflow side of the outside air or supply air flow 2 and the upstream side of the exhaust air or exhaust air flow 3 at the inner diameter of the circular section 10 of the partition 10, as can be seen in particular from FIG results.
  • the two annular sealing lips 12, 13 extend around the entire circumference of the rotor 5 on its cylindrical outer circumferential surface 6.
  • the partition wall 10 and the two annular sealing lips 12, 13 are arranged at an axial distance to both end faces of the rotor 5 on or on the cylindrical outer circumferential surface 6.
  • the first annular sealing lip 12 has an axial sealing portion oriented in the axial direction of the rotor 5
  • the first annular sealing lip has a radial sealing portion oriented in the radial direction of the rotor 5
  • the second annular sealing lip 13 arranged on the outflow side of the outside air or supply air flow 2 and thus the inflow side of the exhaust air or exhaust air flow 3 of the partition 10, as shown in FIG. 3, has an axial sealing section 16 oriented in the axial direction of the rotor 5 , which is seated on the cylindrical outer circumferential surface 6 of the rotor 5 and there tightly mounted or mounted, and oriented in the radial direction of the rotor 5 radial sealing portion 17 which sits on the upstream side of the exhaust air or exhaust air stream 3 of the partition 10 and there against this side of the partition 10 can be brought into sealing contact.
  • the two annular sealing lips 12, 13 are made of a suitable fluid impermeable, abrasion resistant and flexible material, e.g. from an artificial leather material, an extruded plastic or the like. Accordingly, the Axialdichtungsabitese 14, 16 of the two annular sealing lips 12, 13 can be mounted tightly and tightly on the cylindrical outer mantle surface 6 of the rotor, at the same time the radial sealing portions 15, 17 of the two annular sealing lips 12, 13 in sliding and sealing engagement with the each associated side of the partition 10 can be brought.
  • the seal between the inflow and outflow is accomplished by only a single partition 10, the differential pressures at the annular sealing lips 12, 13 are comparatively low and, moreover, independent of the differential pressure between the Outside air or supply air 2 on the one hand and the exhaust air or exhaust air 3 on the other.
  • the differential pressure at the annular sealing lips 12, 13 is due to the design of the sealing device 9 by means of a single partition 10 always equal to the pressure loss of the outside air or supply air stream 2 and corresponding to the exhaust air or exhaust air stream 3, as it formed on the memory mass as a rotor 5 occurs.
  • the partition wall 10 is seated between the two radial sections 15, 17 of the two annular sealing lips 12, 13 and, like the two sealing lips 12, 13, extends around the entire circumference of the cylindrical outer circumferential surface 6 of the rotor 5.
  • partition wall 10 in deviation from the illustration in Figure 3 also approximately or exactly in the middle - seen in the axial direction - the rotor 5 may be arranged.

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)

Abstract

L'invention concerne un échangeur de chaleur rotatif qui peut être traversé à contre-courant par un premier flux de fluide, par exemple un flux d'air extérieur ou d'air entrant, et par un second flux de fluide, par exemple un flux d'air sortant ou un flux d'air rejeté, et qui est muni d'un rotor (5) monté rotatif qui présente un premier secteur d'écoulement pour le premier flux de fluide et un second secteur d'écoulement pour le second flux de fluide qu'il traverse lors de sa rotation, d'un support dans lequel le rotor (5) est monté rotatif, et d'un dispositif d'étanchéité (9) qui permet de séparer le côté écoulement d'entrée du premier flux de fluide et le côté écoulement de sortie du second flux de fluide du côté écoulement de sortie du premier flux de fluide ou du côté écoulement d'entrée du second flux de fluide. L'invention vise à simplifier le dispositif d'étanchéité tout en assurant automatiquement une étanchéité fiable entre les côtés écoulement d'entrée et de sortie des deux flux de fluide lorsque l'échangeur de chaleur rotatif fonctionne. À cet effet, le dispositif d'étanchéité (9) présente un premier joint d'étanchéité (12) qui assure l'étanchéité par rapport à la face d'une paroi de séparation (10) agencée côté écoulement d'entrée du premier flux de fluide, et un second joint d'étanchéité (13) qui assure l'étanchéité par rapport à la face de la même paroi de séparation (10) agencée côté écoulement d'entrée du second flux de fluide.
EP15774854.2A 2015-07-30 2015-09-16 Échangeur de chaleur rotatif Active EP3329202B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015005300.9U DE202015005300U1 (de) 2015-07-30 2015-07-30 Rotationswärmetauscher
PCT/EP2015/001848 WO2017016570A1 (fr) 2015-07-30 2015-09-16 Échangeur de chaleur rotatif

Publications (2)

Publication Number Publication Date
EP3329202A1 true EP3329202A1 (fr) 2018-06-06
EP3329202B1 EP3329202B1 (fr) 2022-08-24

Family

ID=54251469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15774854.2A Active EP3329202B1 (fr) 2015-07-30 2015-09-16 Échangeur de chaleur rotatif

Country Status (7)

Country Link
US (1) US10533806B2 (fr)
EP (1) EP3329202B1 (fr)
DE (1) DE202015005300U1 (fr)
ES (1) ES2929510T3 (fr)
PL (1) PL3329202T3 (fr)
RU (1) RU2018106873A (fr)
WO (1) WO2017016570A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3579174A1 (fr) 2018-06-08 2019-12-11 Hexagon Technology Center GmbH Véhicules mobiles dans la fabrication

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002116A (en) * 1983-08-15 1991-03-26 Airxchange, Inc. Rotary heat regenerator
SE456694B (sv) * 1987-04-16 1988-10-24 Flaekt Ab Roterande vaermevaexlare infattad i en utdragbar tvaervaegg
US5069272A (en) 1989-08-17 1991-12-03 Stirling Technology, Inc. Air to air recouperator
US5238052A (en) * 1989-08-17 1993-08-24 Stirling Technology, Inc. Air to air recouperator
US5285842A (en) * 1989-08-17 1994-02-15 Stirling Technology, Inc. Heat recovery ventilator
US5183098A (en) * 1989-08-17 1993-02-02 Stirling Technology, Inc. Air to air heat recovery ventilator
US5577551A (en) * 1992-09-09 1996-11-26 Apparatebau Rothemuhle Brandt & Kritzler Gmbh Regenerative heat exchanger and method of operating the same
US5655594A (en) * 1995-09-15 1997-08-12 Abb Air Preheater, Inc. Rotary regenerative heat exchanger
DE10327078A1 (de) 2003-06-13 2004-12-30 Klingenburg Gmbh Rotationswärmeaustauscher und Verfahren zur Abdichtung eines solchen

Also Published As

Publication number Publication date
EP3329202B1 (fr) 2022-08-24
PL3329202T3 (pl) 2022-12-27
US10533806B2 (en) 2020-01-14
DE202015005300U1 (de) 2015-10-05
ES2929510T3 (es) 2022-11-29
WO2017016570A1 (fr) 2017-02-02
RU2018106873A (ru) 2019-08-29
US20180187976A1 (en) 2018-07-05
RU2018106873A3 (fr) 2019-08-29

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