GB2465263A - Warm water preparation apparatus comprising a solar collector - Google Patents

Warm water preparation apparatus comprising a solar collector Download PDF

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Publication number
GB2465263A
GB2465263A GB0918845A GB0918845A GB2465263A GB 2465263 A GB2465263 A GB 2465263A GB 0918845 A GB0918845 A GB 0918845A GB 0918845 A GB0918845 A GB 0918845A GB 2465263 A GB2465263 A GB 2465263A
Authority
GB
United Kingdom
Prior art keywords
warm water
temperature
flow heater
thermostatic
mixer valve
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
GB0918845A
Other versions
GB2465263B (en
GB0918845D0 (en
Inventor
Johann Kollmannsberger
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.)
IFF KOLLMANNSBERGER KG
Original Assignee
IFF KOLLMANNSBERGER KG
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 IFF KOLLMANNSBERGER KG filed Critical IFF KOLLMANNSBERGER KG
Publication of GB0918845D0 publication Critical patent/GB0918845D0/en
Publication of GB2465263A publication Critical patent/GB2465263A/en
Application granted granted Critical
Publication of GB2465263B publication Critical patent/GB2465263B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0015—Domestic hot-water supply systems using solar energy
    • F24D17/0021—Domestic hot-water supply systems using solar energy with accumulation of the heated water
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0036—Domestic hot-water supply systems with combination of different kinds of heating means
    • F24D17/0063—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters
    • F24D17/0068—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters with accumulation of the heated water
    • 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
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses solar energy
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/14—Solar energy
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/06—Heat exchangers
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • 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
    • F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
    • F24D2240/10—Placed within or inside of
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

A warm water preparation apparatus comprises a solar collector 1, a water tank 3 for storing warm water produced by the solar collector, a flow heater 10 for producing heated water using energy other than solar energy, and first and second thermostatic mixer valves 5, 8. The first thermostatic mixer valve is provided for mixing the water removed from the water tank with cold water in such a manner that a maximum temperature, which is lower than the temperature of the heated water produced by the flow heater, is not exceeded. The second thermostatic mixer valve is provided for mixing the heated water produced by the flow heater with water coming from the outlet of the first thermostatic valve, where the mixing temperature is set at a value which is equal to or higher than the maximum temperature of the water coming from the outlet of the first thermostatic valve and lower than the temperature of the heated water produced by the flow heater. The second thermostatic valve is arranged so that it controls the rate of flow through the flow heater based on the temperature of the water coming from the outlet of the first thermostatic valve.

Description

Warm Water Preparation Apparatus
Description
The invention relates to a warm water preparation apparatus which draws its heat energy, on the one hand, from a solar collector and, on the other hand, from a flow heater.
In the case of known devices of that type, such as known from DE 29 50 886 Al or DE 195 30 000 Al, the warm water heated by means of the solar collector is fed into the flow pipe of the flow heater.
Owing to the varying temperature of the solar-heated water, it is necessary, for safety and operational reasons, to take precautions which either limit the temperature of the solar-heated water at the inlet of the flow heater or interrupt the supply of energy to the flow heater when the temperature in the inlet of the flow heater exceeds a specific value.
The object of the invention is to provide a warm water preparation apparatus of the type mentioned in the introduction, in the case of which it is possible to use a normal flow heater which is supplied with cold water at its inlet.
That object is achieved according to the invention with a warm water preparation apparatus having the features of patent claim 1.
With the structure according to the invention, the operation of the flow heater does not differ from its operation in an apparatus in which it represents the sole source of heat and in the case of which the amount of water drawn varies.
An embodiment of the invention is described hereinafter with reference to the single Figure of the appended drawing.
The Figure shows a solar collector 1 through which fluid flows arid which produces warm water by means of a heat exchanger 2 in a warm water tank 3. The warm water produced is supplied by way of a pipe 4 to a first thermostatic mixer valve 5 in which it is optionally mixed with cold water from a pipe 6 in the usual manner in order to limit the temperature, if only to protect against scalding, to a maximum temperature. Typical values for the maximum temperature are from 55 to 60°C.
From the first thermostatic mixer valve 5, the water is supplied by way of a pipe 7 to the first inlet of a second thermostatic mixer valve 8, the second inlet of which is connected to a pipe 9 which is connected to the outlet of a flow heater 10 which is operated, for example, by gas or electricity. Cold water is supplied to the inlet of the flow heater 10 by way of a pipe 11. The mixing temperature set at the second thermostatic mixer valve 8 is equal to or higher than the temperature of the warm water supplied by way of the pipe 7.
The temperature of the water at the outlet of the thermostatically controlled flow heater 10 may be higher than the mixing temperature set at the second thermostatic mixer valve 8. It is advantageous, inter alia, in order to avoid control oscillations, to set the temperature at the outlet of the flow heater 10 to be higher by 5K than the mixing temperature set at the second thermostatic mixer valve.
The second thermostatic mixer valve is so arranged that it controls the mixing temperature by means of the flow rate of the water removed from the flow heater 10.
The higher the temperature of the water arriving by way of the pipe 7, the lower that flow rate is. If that temperature is the mixing temperature set at the first thermostatic mixer valve 5, then the amount of water removed from the flow heater 10 returns to zero and the flow heater can switch off.
Therefore, with such a structure, the operation of the flow heater does not differ from a situation in which the flow heater is the sole source of warm water and different quantities are drawn. Such a structure also enables the solar collector to be flushed permanently, so that quantities of heat can be used permanently even at low temperature.
A suitable second thermostatic mixer valve is, for example, a mixer valve of the series VTA 320 manufactured by ESBE GmbH.

Claims (8)

  1. Patent Claims 1. Warm water preparation apparatus which has: a solar collector (1), a warm water tank (3) for storing warm water produced by means of the solar collector, it being possible to remove warm water from the warm water tank by way of a discharge pipe (4), a flow heater (10) for producing warm water using energy other than solar energy, the flow heater having a warm water removal pipe (9), a first thermostatic mixer valve (5), lying in the discharge pipe (4) of the warm water tank (3), for mixing the water removed from the warm water tank with cold water, the first thermostatic mixer valve (5) being so arranged that, at the outlet of the first thermostatic mixer valve (5), a maximum temperature which is lower than the temperature of the warm water produced in the flow heater (10) is not exceeded, a second thermostatic mixer valve (8) for mixing warm water produced by the flow heater and warm water coming from the outlet of the first thermostatic valve, the second thermostatic mixer valve (8) being so arranged that the mixing temperature set at the second thermostatic mixer valve (8) is equal to or higher than the maximum temperature of the warm water coming from the outlet of the first thermostatic valve and lower than the temperature of the warm water produced in the flow heater (10), the second thermostatic mixer valve (8) being so arranged that. it controls the rate of flow through the flow heater (10) on the basis of the temperature of the warm water coming from the outlet of the first thermostatic valve.
  2. 2. Warm water preparation apparatus according to claim 1, wherein the first thermostatic mixer valve (5) is so arranged that the maximum temperature at the outlet of the first thermostatic mixer valve (5) is from 55 to 60°C.
  3. 3. Warm water preparation apparatus according to claim 1 or 2, wherein the second thermostatic mixer valve (8) is so arranged that the higher the temperature of the warm water coming from the outlet of the first thermostatic mixer valve, the lower the rate of flow through the flow heater.
  4. 4. Warm water preparation apparatus according to claim 1, 2 or 3, wherein the flow heater is so set that the temperature of the warm water removed from the flow heater is higher by 5K than the mixing temperature set at the second thermostatic mixer valve (8)
  5. 5. Method for operating a warm water preparation apparatus, which method comprises: the provision of a solar collector (1), the provision of a warm water tank (3) for storing warm water produced by means of the solar collector, warm water being removed from the warm water tank by way of a discharge pipe (4), the provision of a flow heater (10) for producing warm water using energy other than solar energy, the flow heater having a warm water removal pipe (9), the provision of a first thermostatic mixer valve (5), lying in the discharge pipe (4) of the warm water tank (3), for mixing the water removed from the warm water tank with cold water in such a manner that, at the outlet of the first thermostatic mixer valve (5) , a maximum temperature which is lower than the temperature of the warm water produced in the flow heater (10) is not exceeded, the provision of a second thermostatic mixer valve (8) for mixing warm water produced with the flow heater and warm water coming from the outlet of the first thermostatic valve, the mixing temperature set at the second thermostatic mixer valve (8) being set at a value which is equal to or higher than the maximum temperature of the warm water coming from the outlet of the first thermostatic valve and lower than the temperature of the warm water produced in the flow heater (10), the second thermostatic mixer valve (8) being so arranged that it controls the rate of flow through the flow heater (10) on the basis of the temperature of the warm water coming from the outlet of the first thermostatic valve.
  6. 6. Method according to claim 5, wherein the maximum temperature at the outlet of the first thermostatic mixer valve (5) is set at from 55 to 60°C.
  7. 7. Method according to claim 5 or 6, wherein the second thermostatic mixer valve (8) is so arranged that the higher the temperature of the warm water coming from the outlet of the first thermostatic mixer valve, the lower the rate of flow through the flow heater.
  8. 8. Method according to claim 5, 6 or 7, wherein the flow heater is so set that the temperature of the warm water produced in the flow heater is higher by 5K than the mixing temperature set at the second thermostatic mixer valve (8)
GB0918845.9A 2008-10-29 2009-10-27 Warm water preparation apparatus Expired - Fee Related GB2465263B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008043291A DE102008043291B4 (en) 2008-10-29 2008-10-29 Hot water preparation system and method for operating a hot water preparation system

Publications (3)

Publication Number Publication Date
GB0918845D0 GB0918845D0 (en) 2009-12-09
GB2465263A true GB2465263A (en) 2010-05-19
GB2465263B GB2465263B (en) 2012-10-17

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ID=41426789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0918845.9A Expired - Fee Related GB2465263B (en) 2008-10-29 2009-10-27 Warm water preparation apparatus

Country Status (2)

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DE (1) DE102008043291B4 (en)
GB (1) GB2465263B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474421A (en) * 2009-09-21 2011-04-20 Nicholas Julian Jan Francis Macphail Thermostatically controlled mixing valve when connected with a high temperature source and a low temperature source
WO2014162274A1 (en) * 2013-04-02 2014-10-09 Tigi Ltd. In-line heated solar thermal storage collector
GB2620595A (en) * 2022-07-12 2024-01-17 Horne Engineering Ltd A valve arrangement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028984B3 (en) * 2008-06-18 2009-11-05 Robert Bosch Gmbh Apparatus and method for flow control of solar powered drinking water flow devices
CN101922754B (en) * 2010-08-25 2012-10-03 锦州森博特新能源技术有限公司 Solar cross-season heat-storage heating system
DE102013112952A1 (en) 2013-11-22 2015-05-28 Bernhard Löw System and method for heating drinking and heating water

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483137A (en) * 1977-12-15 1979-07-03 Matsushita Electric Ind Co Ltd Hot water supply system utilizing solar heat
JPS59119122A (en) * 1982-12-25 1984-07-10 Sharp Corp Hot water supply system
JP2003232565A (en) * 2002-02-07 2003-08-22 Kyocera Corp Hot water supply apparatus using solar energy
DE10212072A1 (en) * 2002-03-19 2003-10-16 Bosch Gmbh Robert A method for controlling the user temperature of a solar heating hot water system has a four way valve and through flow heater switched to heat or cool the water output.
DE202007008024U1 (en) * 2007-06-08 2008-10-23 Robert Bosch Gmbh Mixing device for setting the hot water temperature

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950886A1 (en) * 1979-12-18 1981-07-02 Fa. Peter Wolters, 2370 Rendsburg Non-contact sensor for control of flow rate - has float position in test section that is detected by non-contact sensors used to control flow valve
DE19530000C2 (en) * 1994-09-09 2000-02-10 Stiebel Eltron Gmbh & Co Kg Water heating system
JP4222215B2 (en) * 2004-01-27 2009-02-12 株式会社デンソー Hot water storage water heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483137A (en) * 1977-12-15 1979-07-03 Matsushita Electric Ind Co Ltd Hot water supply system utilizing solar heat
JPS59119122A (en) * 1982-12-25 1984-07-10 Sharp Corp Hot water supply system
JP2003232565A (en) * 2002-02-07 2003-08-22 Kyocera Corp Hot water supply apparatus using solar energy
DE10212072A1 (en) * 2002-03-19 2003-10-16 Bosch Gmbh Robert A method for controlling the user temperature of a solar heating hot water system has a four way valve and through flow heater switched to heat or cool the water output.
DE202007008024U1 (en) * 2007-06-08 2008-10-23 Robert Bosch Gmbh Mixing device for setting the hot water temperature

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474421A (en) * 2009-09-21 2011-04-20 Nicholas Julian Jan Francis Macphail Thermostatically controlled mixing valve when connected with a high temperature source and a low temperature source
WO2014162274A1 (en) * 2013-04-02 2014-10-09 Tigi Ltd. In-line heated solar thermal storage collector
AU2014246775B2 (en) * 2013-04-02 2017-02-16 Tigi Ltd. In-line heated solar thermal storage collector
RU2668861C2 (en) * 2013-04-02 2018-10-03 Тиги Лтд. In-line heated solar thermal storage collector
US10253991B2 (en) 2013-04-02 2019-04-09 Tigi Ltd. In-line heated solar thermal storage collector
GB2620595A (en) * 2022-07-12 2024-01-17 Horne Engineering Ltd A valve arrangement

Also Published As

Publication number Publication date
DE102008043291A1 (en) 2010-05-06
DE102008043291B4 (en) 2012-09-13
GB2465263B (en) 2012-10-17
GB0918845D0 (en) 2009-12-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20151027