DE3245285A1 - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
DE3245285A1
DE3245285A1 DE19823245285 DE3245285A DE3245285A1 DE 3245285 A1 DE3245285 A1 DE 3245285A1 DE 19823245285 DE19823245285 DE 19823245285 DE 3245285 A DE3245285 A DE 3245285A DE 3245285 A1 DE3245285 A1 DE 3245285A1
Authority
DE
Germany
Prior art keywords
heat exchanger
thermostat
heating water
water
heating
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.)
Withdrawn
Application number
DE19823245285
Other languages
German (de)
Inventor
Des Erfinders Auf Nennung Verzicht
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.)
AUSTRIA EMAIL EHT AG
Original Assignee
AUSTRIA EMAIL EHT AG
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 AUSTRIA EMAIL EHT AG filed Critical AUSTRIA EMAIL EHT AG
Publication of DE3245285A1 publication Critical patent/DE3245285A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • F28D7/10—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 arranged one within the other, e.g. concentrically
    • F28D7/14—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 arranged one within the other, e.g. concentrically both tubes being bent
    • 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
    • F24D10/00—District heating systems
    • F24D10/003—Domestic delivery stations having a heat exchanger
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Landscapes

  • 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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

Heat exchanger which is arranged in a hot-water accumulator filled with sanitary water and consists of a double pipe, the inner pipe (3) of which is flowed through by heating water which arrives from a distant heating station, while heating water circulates in the space between the two pipes (3 and 4 respectively). Circulation of the heating water is carried out by a circulating pump which is controlled by a thermostat (21) which is arranged either in the space to be heated or in the sanitary water. <IMAGE>

Description

WärmetauscherHeat exchanger

Wärmetauscher Die Erfindung betrifft einen Wärmetauscher nach dem Oberbegriff des Patentanspruches 1. Heat exchanger The invention relates to a heat exchanger according to the Preamble of claim 1.

Die Verwendung von Doppelrohren bei Wärmetauschern ist bekannt. So wird beispielsweise in der DE-OS 2 951 549 ein Wärmetauscher mit einer Mehrzahl von Doppelrohren beschrieben, bei welchem das zu erwärmende Wasser im Raum zwischen innerem und äußerem Rohr strömt, während Dampf durch das innere Rohr geleitet wird und gleiohzeitigdas äußere Rohr umspült. Die Doppelrohre werden innerhalb des Wärmetausohergehäuses von mehreren Rohrplatten getragen. Wegen des Dampfdrucks müssen sämtliche Konstruktionsteile sehr massiv ausgefuhrt sein, sodaß diese Art von Wärmetauscher nur in Fällen einsetzbar ist, wo Gewicht und Volumen von nebensächlicher Bedeutung sind Ein Wärmetauscher gleioher Bauart ist durch die DE-AS 2 730 399 bekannt geworden. Bei diesem Wärmetausoher strömt ein heißes Medium durch das innere Rohr , während das äußere Rohr von Kühlwasser umspült wird. Im Raum zwischen äußerem und innerem Rohr befindet sich ein ZwisoheXo medium, welches jedoch nicht zirkuliert, sondern nur zur Feststellung von Leckstellen dient, indem der Druck des Zwischenmediurns ständig überwacht wirde Das Zwischen medium dient demnach nicht für Heizzweoke, doho es ist nur ein Primär- und ein Sekundärkreislauf vorhandene Aufgabe der Erfindung ist die optimale WärmsüberXragung von einem primären Heizkreis des Wärmetauschers, auf zwei voneinander getrennte sekundäre Kreise im W4rmeo tauscher.The use of double tubes in heat exchangers is known. So For example, in DE-OS 2 951 549 a heat exchanger with a plurality described by double pipes, in which the water to be heated in the space between inner and outer tube flows while steam is passed through the inner tube and at the same time washes around the outer tube. The double pipes are inside the heat exchanger housing supported by several tube plates. Because of the steam pressure, all structural parts be made very massive, so that this type of heat exchanger can only be used in cases is, where weight and volume are of secondary importance a Heat exchanger of the same type is known from DE-AS 2,730,399. at With this heat, a hot medium flows through the inner tube, while the outer pipe is washed around by cooling water. In the space between the outer and inner pipe there is a ZwisoheXo medium, which does not circulate, but only is used to detect leaks by constantly increasing the pressure of the intermediate medium The intermediate medium is therefore not used for heating purposes, it does is only a primary and a secondary circuit is present object of the invention the optimal heat transfer from a primary heating circuit of the heat exchanger two separate secondary circuits in the W4rmeo exchanger.

Diese Aufgabe wird bei einem Wärmetauscher der eingangs genannten Art durch die Merkmale des kennzeichnenden Teiles des Patentanspruches 1 gelöst.In the case of a heat exchanger, this task becomes the one mentioned at the beginning Kind by the features of the characterizing part of claim 1 solved.

Weitere vorteilhafte Ausgestaltungen der Erfindung argeben sich durch die Merkmale der Unteransprüoheß Die Erfindung wird nachfolgend anhand der Zeichnungen beschrieben. Es zeigen Figur 1 eine schematisohe Darstellung des erfindungsgemäßen Wärmetauschere mit den dazu funktionsmäßig eine Einheit bildenden Elementen, und Figur 2 ein Detail des erfindungsgemäßen Wärmetauschers0 In Figur 1 bezeichnet 1 einen Warmwasserspeicher, in welchem eine doppelwandige Rohrschlange 2 mit einem inneren Rohr 3 und einem äußeren Rohr 4 angeordnet ist (siehe Figur 2). Im inneren Rohr 3 zirkuliert das vom Fernheizwerk ankommende Heizwasser 5, während im äußeren Rohr 4 das Heizungswasser 6 für eine Heizung 7 zirkuliert. Das im Warmwasserspeicher 1 befindliche Brauohwasser 8 umgibt die Rohrschlange 2. Das Heizwasser wird deckelseitig über eine ZuleitungAzugefuhrt und bodenseitig über eihe Ableitung 10 rückgeleitet. Das Brauchwasser wird über eihe Zuleitung 11 bodenseitig zugeführt und deckelseitig über eine Ableitung 12 entnommen. Das Heizungswasser 6 wird über eine Zuleitung 13 bodenseitig zugeführt und deckelseitig über eine Ableitung 14 abgegeben. In der Ableitung 14 ist ein Ausdehnungsgefäß 15 vorgesehen. Des weiteren ist zwischen der Heizung 7 und der Ableitung 14 ein steuerbares Vorrangventil 16 angeordnet, über welches in einer ersten Stellung das Heizungswasser zur Heizung 7 fließt, während es in der zweiten Stellung über eine Leitung 18 direkt mit der Rückleitung 19 der Heizung 7 zu einer Umwälzpumpe 20 fließt, und von dieser über die Zuleitung 13 in das äußere Rohr 4 gepumpt wird.Further advantageous refinements of the invention are evident The invention is explained below with reference to the drawings described. FIG. 1 shows a schematic representation of the invention Heat exchangers with the elements that functionally form a unit, and FIG. 2 shows a detail of the heat exchanger according to the invention. In FIG. 1, 1 denotes a hot water tank in which a double-walled pipe coil 2 is arranged with an inner tube 3 and an outer tube 4 (see Figure 2). In the inner pipe 3, the incoming heating water 5 circulates from the district heating plant, while The heating water 6 for a heater 7 circulates in the outer pipe 4. That in the hot water tank 1 located brewing water 8 surrounds the pipe coil 2. The heating water is on the cover side Supplied via a supply line and returned at the bottom via a discharge line 10. The service water is fed in via a supply line 11 on the bottom side and on the cover side Taken via a derivation 12. The heating water 6 is via a supply line 13 fed in on the bottom side and discharged on the cover side via a discharge line 14. In the An expansion vessel 15 is provided for discharge line 14. Furthermore, between the Heater 7 and the discharge line 14, a controllable priority valve 16 is arranged over which in a first position the heating water flows to the heater 7 while it in the second position via a line 18 directly to the return line 19 of the Heater 7 flows to a circulation pump 20, and from this via the supply line 13 in the outer tube 4 is pumped.

Ein Thermostat 21 ist etwa mittig im Warmwasserspeicher 1 angeordnet und stellt die Temperatur des Brauchwassers 8 in diesem Bereioh fest. Unterschreitet die Temperatur des Brauchwassers einen vorbestimmten Wert, so schaltet der Thermostat die Umwälzpumpe 20 ein, und wird gleichzeitig das Vorrangventil 16 in die zweite Stellung umgeschaltet, sodaß das Heizungswasser über die eitung 18 fließt. Die Umwälzpumpe kann auch durch einen Raumthermostaten 21 eingeschaltet werden, welcher im Bereiche der Heizung 7 angeordnet ist.A thermostat 21 is arranged approximately in the middle of the hot water tank 1 and determines the temperature of the hot water 8 in this area. Falls below the temperature of the hot water reaches a predetermined value, so the thermostat switches the circulation pump 20, and at the same time the priority valve 16 in the second The position is switched so that the heating water flows through the line 18. The circulation pump can also be switched on by a room thermostat 21, which is in the area the heater 7 is arranged.

Durch diese Umschaltung des Vorrangventils 16 wird dem Brauchwasserbedarf der Vorrang eingeräumt, wobei erfindungsgemäß das Heizungswasser 6 über die Leitung 18 in "Kurzschluß" zirkuliert, woduroh sich die Wärmeabgabe vom Heizwasser 5 über das Heizungswasser 6 an das Brauohwasser 8 erhöht.By switching the priority valve 16, the hot water requirement given priority, according to the invention the heating water 6 via the line 18 in "short circuit" circulates, whaturoh the heat dissipation from the heating water 5 over the heating water 6 to the brewing water 8 increased.

LeerseiteBlank page

Claims (6)

Wärmetauscher Patentanspruche. Heat exchanger claims. Wärmetauscher, bestehend aus einem Behälter, in welchem zumindest ein Doppelrohr angeordnet ist, wobei im inneren Rohr, im Raum zwischen innerem und äußerem Rohr, sowie im Raum zwischen äußerem Rohr und Behälter jeweils ein wärmetauschendes Medium vorhanden ist, dadurch gekennzeichnet, daß in einem der beiden Räume des Doppelrohres ein von einem Fernheizwerk einlangendes Heizwasser (5) im anderen Raum Heizungswasser (6) zirkuliert, und daß Brauchwasser (8) das äußere Rohr (4) umgibt, wobei der Behälter als Warmwasserspeicher (1) ausgebildet ist. Heat exchanger consisting of a container in which at least a double tube is arranged, wherein in the inner tube, in the space between the inner and outer tube, as well as in the space between the outer tube and the container each a heat-exchanging one Medium is present, characterized in that in one of the two rooms of the Double pipe a heating water (5) arriving from a district heating plant in the other room Heating water (6) circulates, and that domestic water (8) surrounds the outer pipe (4), wherein the container is designed as a hot water tank (1). 2. Wärmetausoher nach Anspruch 1, dadurch gekennzeichnet, daß das Doppelrohr als Rohrsohlange (2) ausgebildet ist. 2. Heat exchanger according to claim 1, characterized in that the Double pipe is designed as a pipe sole length (2). 3. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß zur Zirkulation des Heizungswassers eine Umwälzpumpe (20) im Heizungswasserkreislauf vorgesehen ist, welche von einem Thermostaten gesteuert ist. 3. Heat exchanger according to claim 1, characterized in that for Circulation of the heating water a circulation pump (20) in the heating water circuit is provided, which is controlled by a thermostat. 4. Wärmetausoher nach Anspruch 3, dadurch gekennzeichnet, daß der Thermostat als Raumthermostat (21) im Bereiche der Heizung (7) angeordnet ist.- 4. Heat exchanger according to claim 3, characterized in that the Thermostat is arranged as a room thermostat (21) in the area of the heater (7). 5. Wärmetauscher nach Anspruch 3, dadurch gekennzeichnet, daß die Umwälzpumpe von einem, die Brauchwassertemperatur im Wasserspeicher (1) messenden Thermostaten (21) gesteuert ist, wobei der Thermostat (21) gleiohzeitig ein Vorrangventil (16) ansteuert, welches beim Ansprechen des Thermostaten (21) die zur Heizung (7) führende Leitung (14) direkt mit der Umwälzpumpe (20) verbindet.5. Heat exchanger according to claim 3, characterized in that the circulation pump is the hot water temperature in the water tank (1) measuring thermostat (21) controlled is, wherein the thermostat (21) simultaneously controls a priority valve (16), which when the thermostat (21) responds, the line (14) leading to the heater (7) connects directly to the circulation pump (20). 6. Wärmetauscher nach Anspruch 1, dadurch gekenndas/ zeichnet, daß rom einem Pernheizwerk einlangende Heizwasser im inneren und das Heizungswasser im Raum zwischen innerem und äußerem Rohr (3 bzw. 4) zirkuliert. 6. Heat exchanger according to claim 1, characterized in that Heating water coming in from a Pernheizwerk inside and the heating water circulates in the space between the inner and outer pipe (3 or 4).
DE19823245285 1981-12-09 1982-12-07 Heat exchanger Withdrawn DE3245285A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0526481A AT371924B (en) 1981-12-09 1981-12-09 HEAT EXCHANGER

Publications (1)

Publication Number Publication Date
DE3245285A1 true DE3245285A1 (en) 1983-07-21

Family

ID=3573821

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823245285 Withdrawn DE3245285A1 (en) 1981-12-09 1982-12-07 Heat exchanger

Country Status (3)

Country Link
AT (1) AT371924B (en)
CH (1) CH661789A5 (en)
DE (1) DE3245285A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400486B (en) * 1991-07-22 1996-01-25 Vaillant Gmbh HOT WATER HEATER
AT405454B (en) * 1994-08-03 1999-08-25 Vaillant Gmbh HOT WATER HEATING
DE202005017583U1 (en) * 2005-11-10 2007-03-22 Dietz, Erwin Hot water boiler surrenders heat from hot water to cold water via two coaxial interfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400486B (en) * 1991-07-22 1996-01-25 Vaillant Gmbh HOT WATER HEATER
AT405454B (en) * 1994-08-03 1999-08-25 Vaillant Gmbh HOT WATER HEATING
DE202005017583U1 (en) * 2005-11-10 2007-03-22 Dietz, Erwin Hot water boiler surrenders heat from hot water to cold water via two coaxial interfaces

Also Published As

Publication number Publication date
ATA526481A (en) 1982-12-15
AT371924B (en) 1983-08-10
CH661789A5 (en) 1987-08-14

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Legal Events

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