EP3098553A1 - Systeme d'echangeur thermique a plaques - Google Patents

Systeme d'echangeur thermique a plaques Download PDF

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Publication number
EP3098553A1
EP3098553A1 EP16170441.6A EP16170441A EP3098553A1 EP 3098553 A1 EP3098553 A1 EP 3098553A1 EP 16170441 A EP16170441 A EP 16170441A EP 3098553 A1 EP3098553 A1 EP 3098553A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate heat
plate
secondary circuit
housing
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
EP16170441.6A
Other languages
German (de)
English (en)
Other versions
EP3098553B1 (fr
Inventor
Roland Blumenthal
Tobias Theile
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.)
Gebr Kemper GmbH and Co KG
Original Assignee
Gebr Kemper GmbH and Co KG
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Filing date
Publication date
Application filed by Gebr Kemper GmbH and Co KG filed Critical Gebr Kemper GmbH and Co KG
Publication of EP3098553A1 publication Critical patent/EP3098553A1/fr
Application granted granted Critical
Publication of EP3098553B1 publication Critical patent/EP3098553B1/fr
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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0092—Devices for preventing or removing corrosion, slime or scale
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts

Definitions

  • the present invention relates to a plate heat exchanger system with a plate heat exchanger having an inlet and an outlet of a primary circuit, an inlet and an outlet of a secondary circuit and at least one plate which separates the two circuits within a housing of the plate heat exchanger. Furthermore, the plate heat exchanger system comprises a pipeline which connects the primary circuit to a heating device.
  • the aim of such a plate heat exchanger is the fluidic separation between the fluid of the secondary circuit to be heated and the fluid of the primary circuit which introduces this heat.
  • This can be, for example, a fluid adapted for heat transfer and convective passage, to which, for example, corrosion inhibitors or the like are added.
  • the fluid from the secondary circuit is consumed regularly. Occasionally, special demands are placed on the quality of this fluid, especially when the fluid is to be removed as drinking or service water from the secondary circuit.
  • the plate heat exchangers in such a plate heat exchanger system are usually designed as countercurrent heat exchangers.
  • a plate heat exchanger which is basically vertical, to counteract the aforementioned problem of decalcification.
  • the plate heat exchanger is aligned so that a surface normal to the plates of the heat exchanger is perpendicular to the gravitational field of the earth.
  • the housing of the plate heat exchanger is pivoted about this surface normal, so that the housing is inclined.
  • the inlet of the primary circuit and the outlet of the secondary circuit are provided in the region of the bottom of the heat exchanger. Due to the inclination is that amount of cold water that remains after the purchase of hot water in the housing of the heat exchanger, below the outlet of the secondary circuit in the case. With the next reference of hot water on the secondary side, therefore, not the cold amount of water is first issued.
  • a plate heat exchanger which is based on an orientation of the plates as they are made of DE 20 2008 003 349 U1 is known, builds. So is also in the DE 10 2010 018 086 A1 a surface normal to the plates of the heat exchanger perpendicular to the gravitational field of the earth, however, differs from that of the DE 20 2008 003 349 U1 known orientation in that the longitudinal axis of the plates includes a larger angle with the gravitational field vector.
  • the warm end of the plate heat exchanger ie the inlet for the warmer medium
  • the cold end ie the inlet for the colder medium
  • the two solutions after the DE 20 2008 003 349 U1 and the DE 10 2010 018 086 A1 are also characterized by the fact that the channels of the plate heat exchanger are arranged vertically relative to the gravitational direction.
  • the present invention seeks to provide a plate heat exchange system which more effectively addresses the problem of calcification and avoids it in the best possible way.
  • the present invention proposes a plate heat exchange system having the features of claim 1.
  • This system differs from the prior art in that the plate heat exchanger is arranged in the direction of gravity so that the plane in which the plate is inclined relative to the gravity vector and the horizontal.
  • plates of a plate heat exchanger have corrugated or otherwise deformed sections so that such plate does not form a completely flat surface.
  • the plane in which the plate lies the plane in the space to be understood that includes the surface portions of the plate which were not deformed in the provision process of the plate.
  • the proportion of the surface sections the plate, which has not been deformed and therefore lying in one plane at least 10%, preferably at least 50% and more preferably at least 85% of the total area of the plate. If the plate is deformed over its entire surface, then two directions L and B (usually also referred to as length and width) can be determined, in which the plate has its greatest extent.
  • a surface normal to the plane in which the plate is located is accordingly provided obliquely to the gravitational field of the earth, ie at an angle greater than 0 ° and less than 90 °.
  • the plate heat exchanger of the plate heat exchanger system according to the invention usually has a plurality of such plates, which are provided lying in parallel planes and stacked one above the other and fluidly decouple the primary circuit of the secondary circuit and divide inside the housing alternately compartments for the primary circuit and the secondary circuit. If, after drawing warm water from the secondary circuit, the flow is stopped here, there is still some fluid still to be heated and some already heated fluid in the heat exchanger.
  • the fluid is hot water, which flows through the heat exchanger on the primary side on the primary side in the gravitational field of the earth from bottom to top.
  • This hot water is thus the fluid of the primary circuit.
  • the water of the secondary circuit is conducted in countercurrent thereto, i. flows in the gravitational field of the earth from top to bottom. If this reference is stopped after a supply of warm water from the secondary circuit, relatively cold water is present in the input area of the secondary circuit (ie usually in the gravitational field of the earth above), whereas the water on the outlet side (ie usually in the gravity field) Earth below) is relatively warm.
  • the cold water displaces the warm water with a lower density in the Earth's gravity field due to the higher density. Due to the inclination of the heat exchanger, the water meets relatively soon in the Gefach on a the corresponding Gefach the Heat exchanger delimiting wall formed by a plate. This plate can also be formed by an outer housing wall of the heat exchanger housing. This stops the downward movement of the cold water. The cold water now slides down the sloping surface. This results in a microcirculation in the region of the respective Gefaches. Countercurrent to the cold water, due to the continuity of the medium in the same or an adjacent compartment, relatively warm water flows upwardly. For the flow in a compartment, some mixing takes place due to circulations at the interface between the falling and the rising water.
  • the plate heat exchanger is a heat exchanger with a plurality of parallel plates and a plurality of alternating compartments on the one hand for the primary and on the other for the secondary circuit - the fluid of the secondary circuit also slightly through in the underlying Gefach the primary circuit befindliches warmer fluid heated.
  • an effectiveplundimeung the temperature of the first in the Gefach when stopping the circulation of existing fluid of different temperature is achieved. If water has been used as fluid above, this merely takes into account the circumstance that this fluid is usually conducted at least in the secondary circuit. However, the invention is not limited to this fluid.
  • the plate heat exchanger in the direction of gravity is arranged so that a surface normal to the plane in which the plate is inclined by an angle of 9 to 50 ° to the gravity vector, particularly preferably with an angle of between 10 ° or 30 ° as the lower limit and 50 ° or 60 ° as the upper limit, and more preferably at the angle between 15 ° and 35 °.
  • the optimum would be given for a plate heat exchanger whose surface normal to the plane in which the plate is inclined by an angle of 25 ° ⁇ 5 ° to the gravity vector.
  • the plate heat exchanger is usually incorporated in a heat exchanger system, which has at least one removal for drinking or service water.
  • a corresponding line that is part of the secondary circuit and leads to a withdrawal point for drinking or service water.
  • the fluid of the primary heating circuit in the heat exchanger preferably flows uphill so against gravity and the fluid of the secondary circuit flows in the heat exchanger opposite.
  • the heat exchanger is thus a countercurrent heat exchanger. If the supply of water is stopped, the cold water of the secondary circuit flows accordingly first downwards until it encounters the oblique boundary surface, which bounds the corresponding compartment below.
  • This boundary surface may be formed by a plate in the interior of the housing or just by the housing of the heat exchanger. If the circulation of the circulating in the primary circuit fluid is stopped, this also falls in the same way and approaches that area of the compartment in which relatively warmer fluid is provided.
  • a relatively uniform temperature is rapidly set in both compartments, as long as the flow in the heat exchanger comes to a standstill.
  • the primary circuit is preferably in the housing above the secondary circuit.
  • a heat exchanger with only one Gefach for each of the circuits is thus ensured that the relatively colder fluid in the primary circuit in the direction of the even colder fluid in the secondary circuit initially drops and thus a certain convective heat transfer at the boundary layer between the two circuits and through the plate separating the two circuits.
  • a plurality of compartments are arranged one above the other, which are regularly associated alternately with the primary and secondary circuit. The previously discussed development requires that the top Gefach a compartment of the primary circuit is provided and at the bottom of a compartment of the secondary circuit.
  • the housing of the plate heat exchanger is inclined.
  • the inclination of the plate heat exchanger housing usually corresponds to the inclination of the individual plates of the housing. Accordingly, the plates of the housing are aligned parallel to the longitudinal extent of the heat exchanger housing.
  • the housing has a primary circuit bleed valve and a secondary circuit bleed valve. It goes without saying that these vent valves are provided at the upper edge of the housing in the vertical direction.
  • a simplified connection of pipelines of the primary and secondary circuit according to the present invention is improved in that the housing of the plate heat exchanger at the bottom has corresponding connections for the primary circuit and / or the secondary circuit.
  • all connections for the primary and the secondary circuit are provided on the underside of the plate heat exchanger housing. All installation work to connect the piping systems must therefore be done only from the bottom.
  • the heat exchanger with its housing can be mounted at a suitable location to further simplify this connection work.
  • the present invention provides the ability to improve the cooling time within the heat exchanger, i. to shorten the time that is necessary to provide him to the two circuits within the heat exchanger housing in each case substantially constant temperature conditions over the entire volume extension to the respective circuits.
  • This counteracts the problem of increased calcification of the compartments in the heat exchanger and thus of the heat exchanger as a whole.
  • the inclination of the at least one plate ultimately leads to a kind of circular convection flow within the compartment to one of the circuits, which causes the best possiblepluthing conductedung the temperature in that Gefach.
  • a uniform mixing temperature is achieved, which represents the temperature of the fluid in the Gefach respectively in the entire heat exchanger, which adjusts after mixing the different temperature fluid fractions in one of the circuits within the heat exchanger.
  • Fig. 1 illustrates a perspective side view of an embodiment of a plate heat exchanger 10 having an inlet 11 and an outlet 12 of a primary circuit 13, an inlet 14 and an outlet 15 of a secondary circuit 16 and a direction indicated by a dashed line plate 17, which separates the two circuits 13, 16 from each other ,
  • the plate 17 separates the interior of a marked with reference numeral 18 housing the plate heat exchanger 10 in two compartments 19, 20.
  • the Gefach 19 is the flow area for the flowing fluid in the primary circuit.
  • the fluid of the secondary circuit 16 flows through the housing 18.
  • the inlet 11 of the primary circuit and the outlet 15 of the secondary circuit located at the bottom of the housing 18 near an edge which is defined by a front end of the housing 18.
  • the outlet 12 of the primary circuit and the inlet 14 of the secondary circuit are located at the opposite end of a bottom of the housing 18. This bottom is defined by a side wall 21 of the housing 18.
  • the Gefach 19 for the primary circuit 13 is the upper side bounded by an upper side wall 22 of the housing.
  • This upper side wall 22 of the housing is provided at its upper end near the end face by two vent valves 23, 24. It is understood that a plurality of compartments of the type described above in the plate heat exchanger one above the other and alternately arranged. Only one Gefach was shown enlarged, in order to express the essence of the invention more clearly. The respective compartments communicate at the end with the inlets 11, 14 and outlets 12, 15.
  • FIG. 1 the horizontal is marked by a line H.
  • the inclination of the housing, that is, the parallel walls 21, 22 relative to this horizontal H is marked with the angle ⁇ .
  • ⁇ 35 °.
  • the plate 17 With a corresponding angle and the plate 17 is inclined relative to the horizontal H.
  • G indicates the gravitational field of the earth.
  • the partition plate 17 has a surface normal N which is at the same angle ⁇ to the vector G of the earth's gravity field.
  • FIG. 2 shows the installation situation of the in Fig. 1 illustrated embodiment with the connecting lines connected to corresponding hot water (DHW) lines, for cold drinking water, which is provided via the house connection (TWK HA), for heating water (Hzg.), where VL indicates the flow and RL the return are.
  • the heating pipes with the further index Whg. are connected to the apartment and are flow and return for the residential unit.
  • the corresponding line strands are numbered by the reference numerals 1 to 7.
  • a wiring harness 8 connects the inlet 14 of the secondary circuit for drinking water of the plate heat exchanger 10 with a branch to which the lines 2 and 3 are connected.
  • the outlet of the secondary circuit 15 is connected to the line 1.
  • the inlet of the primary circuit 11 is connected via a tee with the line 4 for the heating flow.
  • the outlet 12 of the primary circuit communicates via the line 9 and a three-way valve with the line 5 for the heating return, which can also be connected via the three-way valve with the coming out of the apartment return line 7 of the heater.
  • the lines 5 and 4 lead the heating water via a boiler, not shown, in which the heating water is heated.
  • FIG. 1 Plotted flow arrows show the circulation due to free convection after switching off any flow due to forced convection, which leads to a rapid temperature compensation within the heat exchanger, due to the inclined orientation of the individual compartments 19, 20 bounding walls.
  • the relatively high upright very cold fluid of the primary circuit 13 has a higher density than the underlying, slightly warmer fluid of the same circuit 13.
  • FIG. 2 is entered at the height of the plate 17 whose length is L and whose width is B in the form of direction vectors.
  • the direction vector L indicates the direction of the greatest extension, that is to say the longitudinal extent of the plate 17, and the vector B the direction of the extent of the plate in the second largest direction, that is to say the width direction.
  • the vectors L and B span a plane E to which the surface normal N is oriented orthogonally. In this case, the present flat plate 17 is completely within this plane E and defines this plane E itself.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP16170441.6A 2015-05-22 2016-05-19 Systeme d'echangeur thermique a plaques Active EP3098553B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015003756.9U DE202015003756U1 (de) 2015-05-22 2015-05-22 Plattenwärmetauschersystem

Publications (2)

Publication Number Publication Date
EP3098553A1 true EP3098553A1 (fr) 2016-11-30
EP3098553B1 EP3098553B1 (fr) 2017-09-13

Family

ID=56024198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16170441.6A Active EP3098553B1 (fr) 2015-05-22 2016-05-19 Systeme d'echangeur thermique a plaques

Country Status (6)

Country Link
US (1) US11098956B2 (fr)
EP (1) EP3098553B1 (fr)
CA (1) CA2930609C (fr)
DE (1) DE202015003756U1 (fr)
DK (1) DK3098553T3 (fr)
NO (1) NO2751710T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10890338B2 (en) 2016-11-11 2021-01-12 Gebr. Kemper Gmbh + Co. Kg Metallwerke Water system with a continuous flow heater and a flushing station

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017101345U1 (de) 2017-03-09 2018-06-12 Gebr. Kemper Gmbh + Co. Kg Metallwerke Thermische Kopplung von Kaltwasserleitungen an massive Bauteile
DE102019120719B3 (de) * 2019-07-31 2020-09-24 Faiveley Transport Leipzig Gmbh & Co. Kg Klimaanlage für ein Schienenfahrzeug mit einer Kälte-Speichereinheit und Verfahren zum Betrieb einer derartigen Klimaanlage
GB202210655D0 (en) * 2022-07-21 2022-09-07 Rasheed Muhammad Hama Ali Heat exchanger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008003349U1 (de) 2008-03-07 2008-09-11 Varmeco Gmbh & Co. Kg Abkühlarmer Brauchwasserwärmer
DE102010018086A1 (de) 2010-04-23 2011-10-27 Frank Triesch Wärmeübertragungseinrichtung
EP2469193A2 (fr) * 2010-06-09 2012-06-27 Thomas Geck Système de réglage, échangeur thermique de régulateur, procédé de préparation d'un support secondaire et procédé de rééquipement d'un appartement

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GB1216306A (en) * 1967-03-31 1970-12-16 Marston Excelsior Limiited Plate-type heat exchangers
US4235679A (en) * 1979-01-15 1980-11-25 The United States Of America As Represented By The Secretary Of The Navy High performance solar still
US5897850A (en) * 1993-11-30 1999-04-27 Comprimo B.V. Process for removing elemental sulfur from a gas stream
US6449970B1 (en) * 1999-11-10 2002-09-17 Shurflo Pump Manufacturing Company, Inc. Refrigeration apparatus and method for a fluid dispensing device
US6598417B1 (en) * 2000-12-22 2003-07-29 Oscar Wilkes Multi-channel local beverage cooler
DE102008054104A1 (de) * 2008-10-31 2010-05-06 Herbert Kannegiesser Gmbh Verfahren und Vorrichtung zum Aufbereiten der Abluft von beheizten Wäschereimaschinen
DE202016106313U1 (de) * 2016-11-11 2018-02-14 Gebr. Kemper Gmbh + Co. Kg Metallwerke Wassersystem mit einem Durchflusserwärmer und einer Spülstation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008003349U1 (de) 2008-03-07 2008-09-11 Varmeco Gmbh & Co. Kg Abkühlarmer Brauchwasserwärmer
DE102010018086A1 (de) 2010-04-23 2011-10-27 Frank Triesch Wärmeübertragungseinrichtung
EP2469193A2 (fr) * 2010-06-09 2012-06-27 Thomas Geck Système de réglage, échangeur thermique de régulateur, procédé de préparation d'un support secondaire et procédé de rééquipement d'un appartement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10890338B2 (en) 2016-11-11 2021-01-12 Gebr. Kemper Gmbh + Co. Kg Metallwerke Water system with a continuous flow heater and a flushing station

Also Published As

Publication number Publication date
US20160341485A1 (en) 2016-11-24
DK3098553T3 (en) 2017-12-11
US11098956B2 (en) 2021-08-24
DE202015003756U1 (de) 2016-08-23
CA2930609C (fr) 2018-02-20
CA2930609A1 (fr) 2016-11-22
NO2751710T3 (fr) 2017-12-30
EP3098553B1 (fr) 2017-09-13

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