EP3329202B1 - Rotationswärmetauscher - Google Patents

Rotationswärmetauscher Download PDF

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Publication number
EP3329202B1
EP3329202B1 EP15774854.2A EP15774854A EP3329202B1 EP 3329202 B1 EP3329202 B1 EP 3329202B1 EP 15774854 A EP15774854 A EP 15774854A EP 3329202 B1 EP3329202 B1 EP 3329202B1
Authority
EP
European Patent Office
Prior art keywords
rotor
fluid stream
heat exchanger
partition
rotary heat
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.)
Active
Application number
EP15774854.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3329202A1 (de
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/de
Application granted granted Critical
Publication of EP3329202B1 publication Critical patent/EP3329202B1/de
Active 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
    • 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 according to the preamble of patent claim 1.
  • the rotor When operating such a rotary heat exchanger, the rotor, which is designed as a rotating storage mass, must be sealed against the housing or the mount of the rotary heat exchanger. Furthermore, the two fluid flows upstream and downstream of the rotary heat exchanger must also be separated or sealed from one another. Due to these sealing measures, leakage during operation of the rotary heat exchanger can be largely avoided.
  • a rotary heat exchanger is known through which a first fluid flow and a second fluid flow flow in opposite directions.
  • the rotary heat exchanger includes a rotatably mounted rotor, which has a first flow sector for the first fluid flow and a second flow sector for the second fluid flow, which it passes through when rotating.
  • the rotor is rotatably mounted within a bracket.
  • the inflow side of the first fluid stream and the outflow side of the second fluid stream can be separated from the outflow side of the first fluid stream or the inflow side of the second fluid stream by means of a sealing device.
  • the sealing device includes a first seal that seals against the upstream side of the first fluid stream of a partition and a second seal that seals against the upstream side of the second fluid stream of the same partition. Both seals each have an axial seal section that is located on the cylindrical outer surface of the rotor seated, and a radial seal portion, which is seated on the upstream side of the first and the second fluid flow arranged side of the partition.
  • the invention is based on the object of further developing the rotary heat exchanger described in such a way that its sealing device can be simplified, with reliable sealing between the inflow and outflow sides of the two fluid streams being to be automatically ensured when the rotary heat exchanger is in operation. the service life of the sealing device interacting with the partition wall is increased and any required replacement of the sealing device is facilitated.
  • a rotary heat exchanger which, in addition to the features of the preamble, also has those of the characterizing part of patent claim 1.
  • a single partition is required, which is oriented in the radial direction of the rotor and seals the rotor or the storage mass against the holder.
  • the differential pressure at the sealing device if it is designed with only one partition wall, 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 partition wall in the respective direction of the fluid flow.
  • both seals are tightly fastened with their axial sealing sections on the cylindrical outer surface of the rotor and can be brought into sliding and sealing contact with their respective assigned side of the partition wall with their radial sealing sections. Both seals extend around the entire circumference of the rotor on its cylindrical surface. Due to the rotation of the rotor or the storage mass, each peripheral section of the seals reaches both flow sectors or fluid flows and is thus exposed to opposite pressure differences.
  • the stability is increased when the rotary heat exchanger is operated with high pressure losses and correspondingly high differential pressures at the sealing device.
  • the partition wall is advantageously spaced axially from both end faces on the cylindrical outer surface of the rotor arranged and has a sector of a circle whose inner diameter slightly exceeds the outer diameter of the rotor. Accordingly, the space between the cylindrical outer lateral surface of the rotor on the one hand and the holder on the other hand can be used for installing or assembling the sealing device, with sections or components of the sealing device protruding beyond the end faces of the rotor designed as a storage mass being able to be avoided.
  • the seals of the sealing device of the rotary heat exchanger according to the invention are advantageously made from a fluid-impermeable, abrasion-resistant and flexible material, e.g. from a synthetic leather material, an extruded plastic or the like., So that the axial sealing sections of the seals can be mounted tightly on the cylindrical outer surface of the rotor and the radial sealing sections the seals can be brought into sliding and sealing contact with the respective side of the partition.
  • the rotary heat exchanger 1 according to the invention shown in a perspective representation and in a front view has two fluid streams 2, 3 flowing through it 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 stream 3.
  • the two fluid streams 2, 3 are in figure 1 represented by corresponding directional arrows.
  • the rotary heat exchanger 1 has a holder 4 that is approximately square in terms of 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 surface 6, which can consist of a suitable sheet metal, for example.
  • the rotor 5 has a first flow sector 7 which, as shown in FIG figure 1 shows, is flowed through by the outside air or supply air stream 2 .
  • the rotor 5 has a second flow sector 8 through which the exhaust air or exhaust air flow 3 flows in the opposite direction to the outside air or supply air flow 2 .
  • the rotor 5 of the rotary heat exchanger 1 is arranged to be rotatable about a bearing or a hub, which is not shown in the figures.
  • the inflow side of the outside air or supply air stream 3 is tightly separated from the outflow side of the same.
  • the outflow side of the exhaust air or exhaust air stream 3 is tightly separated from the inflow side of the same. It should be noted that in the figures 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 outflow side of the exhaust air or exhaust air flow 3 .
  • a sealing device 9 is arranged in the holder 4 of the rotary heat exchanger 1, by means of which the inflow and outflow sides of the outside air or supply air flow 2 and the exhaust air or exhaust air flow 3 are tightly separated from one another.
  • a separating device (not shown in the figures) is provided, by means of which the outside air or supply air flow 2 is separated from the exhaust air or exhaust air flow 3 upstream and downstream of the rotary heat exchanger 1.
  • the provided in the holder 4 sealing device 9 has a partition 10 whose outer dimensions correspond to the inner dimensions of the holder 4 and which is fixed there.
  • the partition wall 10 is provided with a circular sector 11 in its central area.
  • the inside diameter of the pie section 11 of the partition wall 10 essentially corresponds to the outer diameter of the rotor 5 of the rotary heat exchanger 1, but is slightly larger, so that both in the manufacture of the partition wall 10 and in the manufacture of the rotor 5 occurring manufacturing tolerances in no case lead to friction loads and the like. and resulting damage.
  • the sealing device 9 In order to separate the inflow and outflow sides tightly from one another within the rotary heat exchanger 1 by means of the partition wall 10, the sealing device 9 also has 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 arranged on the inflow side of the outside air or supply air flow 2 and correspondingly on the outflow side of the exhaust air or exhaust air flow 3 on the inner diameter of the circular section 11 of the partition wall 10. Accordingly, the second annular sealing lip 13 is arranged on the outflow side of the outside air or supply air flow 2 and the inflow side of the exhaust air or exhaust air flow 3 on the inner diameter of the circular section 10 of the partition 10, as can be seen in particular from the further explained below figure 3 results.
  • the two ring-shaped sealing lips 12, 13 extend around the entire circumference of the rotor 5 on its cylindrical outer surface 6.
  • the partition wall 10 and the two ring-shaped sealing lips 12, 13 are arranged at an axial distance from both end faces of the rotor 5 on or on its cylindrical outer surface 6.
  • the first annular sealing lip 12 has an axial sealing section 14 oriented in the axial direction of the rotor 5, which sits on the cylindrical outer lateral surface 6 of the rotor 5 and is tightly fastened or mounted there. Furthermore, the first annular sealing lip has a radial sealing section 15 oriented in the radial direction of the rotor 5, which sits on the side of the partition wall 10 arranged on the inflow side of the outside air or inlet air flow 2 and can be brought into sealing contact against this side of the partition wall 10.
  • the second annular sealing lip 13 arranged on the downstream side of the outside air or supply air stream 2 and thus the upstream side of the exhaust air or exhaust air stream 3 of the partition wall 10, as can be seen in particular figure 3 results, an axial seal section 16 oriented in the axial direction of the rotor 5, which sits on the cylindrical outer lateral surface 6 of the rotor 5 and is tightly fastened or mounted there, and a radial seal section 17 oriented in the radial direction of the rotor 5, which is located on the inflow side of the exhaust air or 3 of the partition wall 10 and can be brought into sealing contact there against this side of the partition wall 10 .
  • the two ring-shaped sealing lips 12, 13 are made of a suitable fluid-tight, abrasion-resistant and flexible material, e.g. an extruded plastic or the like.
  • the axial sealing portions 14, 16 of the two annular sealing lips 12, 13 can be mounted tightly and firmly on the outer cylindrical surface 6 of the rotor, while at the same time the radial sealing portions 15, 17 of the two annular sealing lips 12, 13 are in sliding and sealing abutment against their respective associated side of the partition 10 can be brought.
  • the sealing between the inflow and outflow sides is effected by only a single partition wall 10, the differential pressures on the annular sealing lips 12, 13 are comparatively low and, moreover, independent of the differential pressure between the outside air and or supply air flow 2 on the one hand and the exhaust air or exhaust air flow 3 on the other.
  • the differential pressure at the annular sealing lips 12, 13 is always equal to the pressure loss of the outside air or supply air flow 2 and, correspondingly, of the exhaust air or exhaust air flow 3, as it occurs on the rotor designed as a storage mass, due to the design of the sealing device 9 by means of a single partition 10 5 occurs.
  • the radial sealing section 15 of the first annular sealing lip 12 is pressed against the side of the partition wall 10 facing the inflow side of the outside air or inlet air flow 2, or the radial sealing section 17 of the second annular sealing lip 13 against that of the Inflow side of the exhaust air or exhaust air flow 3 facing side of the partition 10 realized, with the result that both in terms of the outside air or supply air flow 2 and in terms of the exhaust air or exhaust air flow 3 a reliable sealing between the upstream and downstream sides is realized.
  • FIG. 3 The schematic diagram shown of a part of the cylindrical outer surface 6 of the rotor 5, for which the partition 10 and the two annular sealing lips 12, 13 are only partially shown, shows the type of attachment of the two sealing lips 12, 13 on the cylindrical outer surface 6.
  • the interruption of the two ring-shaped sealing lips 12, 13 approximately in the middle of the illustration is only shown for reasons of clarity in order to clarify the arrangement or the structure of the cylindrical outer surface 6, the two ring-shaped sealing lips 12, 13 and the partition wall 10.
  • the partition wall 10 sits 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 lateral surface 6 of the rotor 5.
  • partition wall 10 can differ from the illustration in figure 3 also about or exactly in the middle - be arranged the rotor 5 - seen in the axial direction.

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)
EP15774854.2A 2015-07-30 2015-09-16 Rotationswärmetauscher Active EP3329202B1 (de)

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 (de) 2015-07-30 2015-09-16 Rotationswärmetauscher"

Publications (2)

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

Family

ID=54251469

Family Applications (1)

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

Country Status (7)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3579174A1 (en) 2018-06-08 2019-12-11 Hexagon Technology Center GmbH Mobile vehicles in manufacturing

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
US5285842A (en) * 1989-08-17 1994-02-15 Stirling Technology, Inc. Heat recovery ventilator
US5238052A (en) * 1989-08-17 1993-08-24 Stirling Technology, Inc. Air to air recouperator
US5069272A (en) 1989-08-17 1991-12-03 Stirling Technology, Inc. Air to air recouperator
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
EP3329202A1 (de) 2018-06-06
ES2929510T3 (es) 2022-11-29
RU2018106873A (ru) 2019-08-29
DE202015005300U1 (de) 2015-10-05
US10533806B2 (en) 2020-01-14
RU2018106873A3 (pl) 2019-08-29
WO2017016570A1 (de) 2017-02-02
PL3329202T3 (pl) 2022-12-27
US20180187976A1 (en) 2018-07-05

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