EP0346977B1 - Wasserheizer - Google Patents

Wasserheizer Download PDF

Info

Publication number
EP0346977B1
EP0346977B1 EP89201482A EP89201482A EP0346977B1 EP 0346977 B1 EP0346977 B1 EP 0346977B1 EP 89201482 A EP89201482 A EP 89201482A EP 89201482 A EP89201482 A EP 89201482A EP 0346977 B1 EP0346977 B1 EP 0346977B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
line
water
accumulator
pressure
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.)
Expired - Lifetime
Application number
EP89201482A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0346977A1 (de
Inventor
Paul Heimbach
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.)
Nv Vaillant Sa
Vaillant-Schonewelle BV
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Vaillant-Schonewelle BV
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 Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, Vaillant-Schonewelle BV filed Critical Vaillant Austria GmbH
Publication of EP0346977A1 publication Critical patent/EP0346977A1/de
Application granted granted Critical
Publication of EP0346977B1 publication Critical patent/EP0346977B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/242—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners

Definitions

  • the invention relates to a water heater with a heatable via a heat exchanger and a tap which is fed directly from this memory and / or from the heat exchanger, a controller being provided by means of a temperature sensor to monitor the temperature of the water at the outlet of the heat exchanger and to determine the path of the water throughput. which, after reaching a target temperature value, opens a bypass line that connects the outlet of the heat exchanger to the tap line and bypasses the store.
  • Such a water heater is known from DE-OS 3 714 968.
  • the disadvantage of this arrangement is that when the tap is wide open and the outlet temperature is set high, a very large amount of storage water and thus a large storage volume is required to bridge the start-up time of the water heater.
  • a large storage volume is energetically unfavorable and difficult to accommodate in terms of space in a water heater of a generally customary size, an uneven one must be present under certain initial conditions Outlet temperature at the beginning of the tap process must be accepted.
  • the object of the invention is to reduce the storage volume of such a water heater to an optimal minimum. Such a reduction in the storage volume is cost-saving, reduces the weight of the water heater and its energy consumption.
  • the water throughput of a water heater of the type mentioned in the start-up phase of each tap operation can be adjusted to an adjustable minimum value by means of a throttle, a pressure switch being arranged in a cold water supply line leading to the heat exchanger , to which a branch line leading into the inlet of the heat exchanger is connected, which contains the adjustable throttle for the cold water supply.
  • Limiting the water throughput according to the invention within the thermal start-up time leads to a reduction in the storage volume in two respects.
  • the storage volume decreases in the ratio of the reduced throughput to the nominal throughput with the same start-up time
  • the thermal useful power that decreases with the hot water throughput during the start-up phase leads to a shortening of this phase.
  • the minimum amount of storage water to be kept available is determined by using this amount to bridge the thermal start-up time of the water heater until hot water is available in the run.
  • the arrangement of the throttle has the advantage that, due to the throttled cold water supply and thus throttled hot water withdrawal, an almost complete removal of the hot water in the storage tank is possible.
  • the invention is now based on the knowledge that it is advantageous in this sense to limit the amount of hot water that can be drawn within the start-up time, regardless of how far the tap is opened, to a minimum value, in order to achieve a comparatively small amount of storage water and a small amount Storage volume to be able to bridge the start-up time.
  • the pressure switch closes the return flow of the storage to the heat exchanger when the pressure in the storage falls and releases the cold water supply via the throttle, while a pressure sensor connected to the tap via a branch line
  • the burner that heats the heat exchanger starts with a nominal load via a control line.
  • This embodiment is characterized by little design effort in that a pressure drop in the storage when opening the tap valve can be used to start the burner for reheating the storage immediately while the tap water is removed from the storage. This ensures the continued supply of hot water.
  • a branch line opening into the input of the heat exchanger is connected to the pressure switch and contains a valve controlled by the controller, which opens when the temperature setpoint occurs and serves to supply the heat exchanger with cold water.
  • This configuration makes it possible to fully release the cold water throughput to the heat exchanger in accordance with the position of the nozzle when the hot water at the outlet of the heat exchanger reaches the desired temperature.
  • the controller controlled by the temperature in the output line of the heat exchanger is connected to the valve via a control line.
  • the switching state of the valve can be controlled directly as a function of the temperature of the tap water at the outlet of the heat exchanger.
  • a pressure switch at the outlet of the heat exchanger which, when the pressure in the heat exchanger rises, blocks its hot water outlet to the storage tank and opens the bypass line leading to the tap line.
  • thermal recharging is controlled by a storage thermostat after each dispensing operation or to compensate for loss of standby heat. This ensures the constant readiness to draw hot water.
  • the only drawing figure shows the circuit diagram of a water heater according to the invention.
  • the heat exchanger 1 which is heated by a burner (not shown), is assigned a hot water tank 2, the design of which is basically arbitrary within the scope of the invention.
  • this memory can encase or flank the heat exchanger.
  • the heat exchanger 1 contains a coil 3 through which the heating water flows and which is surrounded by the water to be heated. This water is fed to the heat exchanger 1 via a hydraulic pressure switch 4 which is connected to a cold water supply line 5.
  • This pressure switch 9 is connected to the output 11 of the heat exchanger 1.
  • a throttle 13 In a branch line 12 starting from the pressure switch 4 there is a throttle 13 and in a further branch line 14 there is a cold water valve 15 which is controlled via a control line 16 by a controller 17 which in turn is connected via a control line 18 to a control of the flow temperature of the heating water stands.
  • the storage thermostat 28 with the temperature sensor 27 is connected through the control line 19 to the higher-level control unit of the water heater.
  • a pressure sensor 21 which is connected via a control line 22 to the control of the burner heating the heat exchanger 1.
  • the second hydraulic switch 9 is connected via lines 11 and 25 to the heat exchanger, via line 10 to the tap line 8 and via line 24 to the accumulator 2.
  • the control line 23 links the temperature transmitter 26 in line 11 to the temperature controller 17.
  • the heating water circuit is switched to flow to heat exchanger 1.
  • the thermal start-up phase is run through on the primary and secondary side of the system with throttled hot water throughput.
  • the hot water flowing through the heat exchanger 1 flows via the pressure switch 9 and the lines 11, 25 and 25 to the storage tank 2.
  • the controller 17 opens the cold water valve 15 via the control line 16 and releases the flow of the cold water to the coil 3 arranged in the heat exchanger 2 without throttling.
  • the associated pressure increase in the heat exchanger 1 switches the switch 9 into the operating position in which it switches the hot water outlet via the flow line 24 to Memory 2 blocks and the bypass line 10 to the tap 8 and tap 7 opens.
  • This tap 7 is now supplied by the heat exchanger 1 with hot water in the passage.
  • the burner begins to operate in cyclical operation.
  • the heating water temperature setpoint is reduced by the controller 18 connected downstream of the controller 17.
  • the controller 18 connected downstream of the controller 17.
  • the flow pressure in the pressure switches 4 and 9 drops to zero, and these pressure switches go into the rest position, releasing the circulation route via the flow 24 of the heat exchanger 1 and the return 6 for the thermal recharging of the store 2.
  • the reloading process for which the burner may have to switch on several times, is completed as soon as the temperature sensor 27 of the storage thermostat 28 detects that the target value has been reached.
  • a corresponding switching pulse is sent via the control line 19 to the higher-level control unit of the water heater.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Water Supply & Treatment (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Resistance Heating (AREA)
  • Cookers (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Thermally Insulated Containers For Foods (AREA)
EP89201482A 1988-06-14 1989-06-09 Wasserheizer Expired - Lifetime EP0346977B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1533/88 1988-06-14
AT0153388A AT390504B (de) 1988-06-14 1988-06-14 Wasserheizer

Publications (2)

Publication Number Publication Date
EP0346977A1 EP0346977A1 (de) 1989-12-20
EP0346977B1 true EP0346977B1 (de) 1992-11-11

Family

ID=3515560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89201482A Expired - Lifetime EP0346977B1 (de) 1988-06-14 1989-06-09 Wasserheizer

Country Status (5)

Country Link
EP (1) EP0346977B1 (es)
AT (2) AT390504B (es)
DE (2) DE3918733A1 (es)
ES (1) ES2037394T3 (es)
GR (1) GR3006756T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9522102D0 (en) * 1995-10-28 1996-01-03 Gledhill Water Storage Improvements relating to heating apparatus
DE10344413B4 (de) * 2003-09-25 2005-08-25 Bbt Thermotechnik Gmbh Verfahren zur Regelung der Warmwasserbereitung
CN109185950A (zh) * 2018-10-24 2019-01-11 中冶华天南京电气工程技术有限公司 一种双分流换热站
CN113074406B (zh) * 2021-04-08 2022-05-10 湖南全家富电器科技有限公司 一种基于智能语音控制的家用取暖器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1527970A (fr) * 1967-04-14 1968-06-07 Fonderie Soc Gen De Installation assurant la production d'eau chaude sanitaire
DE3714968A1 (de) * 1986-05-03 1987-11-05 Vaillant Joh Gmbh & Co Warmwasserversorgungsanlage

Also Published As

Publication number Publication date
AT390504B (de) 1990-05-25
ATE82378T1 (de) 1992-11-15
DE58902658D1 (de) 1992-12-17
GR3006756T3 (es) 1993-06-30
ATA153388A (de) 1989-10-15
ES2037394T3 (es) 1993-06-16
EP0346977A1 (de) 1989-12-20
DE3918733A1 (de) 1989-12-21

Similar Documents

Publication Publication Date Title
EP0346977B1 (de) Wasserheizer
EP0098450B1 (de) Brennstoffbeheizte Wärmequelle
DE3716798A1 (de) System zur temperaturregelung von warmwasser in wandaufgehaengten mischgas-durchlauferhitzereinheiten
DE2119622B1 (de) Anordnung bei einer Warmwasser-Umlaufheizung
EP2275748B1 (de) Verfahren zum Betrieb einer Heizungsanlage sowie Heizungsanlage
DE19617111A1 (de) Wasserheizanlage
DE3310852C2 (de) Umlaufwasserheizer
EP0556736A1 (de) Verfahren zur Steuerung eines Kessels
EP0421312B1 (de) Vorrichtung zum Steuern des Durchlaufspeicherbetriebes bei Brauchwasserzapfung.
DE4015139C2 (de) Verfahren zur Steuerung einer Wasserheizungsanlage
DE19802362C2 (de) Verfahren und Einrichtung zur Reduzierung der Wartezeit für das Zapfen von warmem Brauchwasser
EP0038964A2 (de) Wasserspeichererhitzer
AT402575B (de) Verfahren zur steuerung eines volumenstrombegrenzers
EP0544207B1 (de) Wasserversorgungssystem
DE1901199B2 (de) Elektrisch betätigtes Verteilventil zur Steuerung des Heizmittelumlaufs in einer Heizungsanlage
EP0617240B1 (de) Kombinierter Wasserheizer
DE4308941C2 (de) Anordnung zur Warmwasserbereitstellung für mit Gaswandgeräten beheizte Durchlaufspeicher
DE19636360C2 (de) Verfahren zur Brauchwasserbereitstellung in einem kombinierten System
EP1158251B1 (de) Verfahren zur Steuerung einer Wasserheizeinrichtung
DE2136518C3 (de) Vorrang-Schalteinrichtung für eine Warmwasser-Umlaufheizung
DE4011848A1 (de) Einrichtung zur warmwasserbereitstellung
DE3410316A1 (de) Mehrkessel-heizungsanlage fuer fluessige waermetraegermedien
EP0544622A1 (de) Zweistoffkesselanlage einer Zentralheizung mit einem Holz- und einem Oelkessel
DE3322612A1 (de) Brennstoffbeheizte waermequelle
DE3923030A1 (de) Steuerung eines umlaufwasserheizers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900618

17Q First examination report despatched

Effective date: 19910527

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VAILLANT GMBH

Owner name: VAILLANT-SCHONEWELLE B.V.

Owner name: VAILLANT LTD.

Owner name: VAILLANT GES.M.B.H

Owner name: VAILLANT S.A.R.L

Owner name: N.V. VAILLANT S.A.

Owner name: JOH. VAILLANT GMBH U. CO.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 82378

Country of ref document: AT

Date of ref document: 19921115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58902658

Country of ref document: DE

Date of ref document: 19921217

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19921201

ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19930315

Year of fee payment: 5

Ref country code: FR

Payment date: 19930315

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930316

Year of fee payment: 5

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930510

Year of fee payment: 5

EPTA Lu: last paid annual fee
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3006756

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19930609

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930610

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2037394

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940316

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19940630

BERE Be: lapsed

Owner name: S.A. VAILLANT N.V.

Effective date: 19940630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19941231

EUG Se: european patent has lapsed

Ref document number: 89201482.0

Effective date: 19950110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950228

EUG Se: european patent has lapsed

Ref document number: 89201482.0

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950328

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3006756

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950609

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950613

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19960630

Ref country code: CH

Effective date: 19960630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980312

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980512

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050609