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WO2006001780A1 - Modular heat exchanger - Google Patents

Modular heat exchanger Download PDF

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Publication number
WO2006001780A1
WO2006001780A1 PCT/SK2005/000010 SK2005000010W WO2006001780A1 WO 2006001780 A1 WO2006001780 A1 WO 2006001780A1 SK 2005000010 W SK2005000010 W SK 2005000010W WO 2006001780 A1 WO2006001780 A1 WO 2006001780A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
water
heat
chamber
modular
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.)
Ceased
Application number
PCT/SK2005/000010
Other languages
French (fr)
Other versions
WO2006001780B1 (en
Inventor
Ladislav Babej
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2006001780A1 publication Critical patent/WO2006001780A1/en
Publication of WO2006001780B1 publication Critical patent/WO2006001780B1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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

Definitions

  • the invention concerns a modular heat exchanger for heating of a liquid, particularly water.
  • a liquid particularly water.
  • Solar radiation heats a liquid in solar collectors, which in turn, through a heat exchanger or directly, heats up water, which is subsequently used. Since solar radiation is varying, thermal storage tanks are used to store water to have the water hot at the time of consumption.
  • the first method consists in placement of heat exchangers within the thermal storage tank.
  • the thermal storage tank In the thermal storage tank, there are one or more heat exchangers of typically a tubular shape.
  • Another method consists in placement of the heat exchanger or heat exchangers outside of the thermal storage tank. In such case, plate exchangers prevail. Their mutual combinations are also possible.
  • interest is being focused on thermal layering of water in thermal storage tanks since based on present knowledge, the layered ones have higher efficiency in storage of thermal energy than the non- layered ones.
  • Thermal layering occurs when heated water is fed into the thermal storage tank at the place of approximately the same temperature and the hot water is withdrawn from the topmost place of the thermal storage tank and the inlet of cold water is at the lowest point of the thermal storage tank. In such a situation, mixing of water layers does not occur. Thermal layering is influenced, in particular, by withdrawal of hot water and supply of fresh cold water.
  • heat exchangers have recently been combined with a mechanical distribution system in the shape of a tube with openings, through which heated water is withdrawn from the exchanger and fed into the thermal storage tank into the appropriate temperature layer.
  • the objective of the present invention is to create such a modular heat exchanger, which prevents mixing of heated water with incoming cold water, and to ensure thereby, compared to prior-art methods of water heating, that a greater amount of water is heated to a higher temperature.
  • a modular heat exchanger for heating of a liquid, particularly water according to the present invention, the essence of which consists in the fact that the modular heat exchanger consists of independent heat sources, which are placed in a common chamber, and/or of independent heat sources, which are placed in separate chambers.
  • the independent heat sources are connected in flow-through manner so that the heated water can freely rise through individual modules up to the hot water reservoir.
  • the cold water inlet is placed in the lowest part of the common chamber or in the lowest part of the separate chamber of the lowest placed heat source and the outlet of the heated water is placed in the top part of the common chamber or in the top part of the separate chamber of the highest placed heat source.
  • the coldest water from the thermal storage tank or from its outer jacket exchanger or from another source of water is fed to the bottom part of the modular heat exchanger. Heated water exits the modular heat exchanger in the top part of the modular heat exchanger, which is connected to the thermal storage tank.
  • the most advantageous arrangement of independent sources of heat is arrangement one on top of the other, even if they can be placed also side by side or in a combination of the two arrangements.
  • the common chamber and the separate chambers of individual independent heat sources are thermally insulated.
  • the source of energy to heat the water in individual independent heat sources may be a variable source of thermal energy, e.g., solar energy, and/or a constant heat source, e.g., electric power, central heating.
  • One common chamber may contain several independent heat sources placed one on top of the other.
  • the heat source may be, e.g., an electric spiral commonly used in heating of water in thermal storage tanks, or a heat exchanger, etc.
  • Advantages of the modular heat exchanger according to the present invention consist particularly in the fact that individual independent heat sources are arranged and connected so that the incoming cold water is gradually heated up and mixing of heated and cold water does not occur, or heated water mixes with cold water in only a limited extent and heated water rises to the thermal storage tank or to a jacket heat exchanger of the thermal storage tank. Transport of the heated water to the storage tank does not require additional equipment such as a pump.
  • Fig. 1 shows a modular heat exchanger with a common chamber of individual independent heat sources.
  • Fig. 2 shows a modular heat exchanger with independent heat sources with separate chambers. Examples
  • a modular heat exchanger was made according to Fig. 1 for heating of water according to the present invention, which consists of two independent heat exchangers 1 arranged one on top of the other. They have a common chamber 2.
  • a modular heat exchanger was made according to Fig. 2 for heating of water according to the present invention, which consists of two independent heat exchangers 1 arranged one on top of the other as individual independent heat exchangers 1 mutually connected in a flow-through arrangement and connected to a jacket heat exchanger of a thermal storage tank.
  • Cold water from the jacket heat exchanger enters the bottom independent heat exchanger 1 through opening 3.
  • Heated water exits through opening 4 in the top independent heat exchanger 1 to the jacket exchanger.
  • the industrial utility of the modular heat exchanger according to the present invention is apparent.
  • the modular heat exchanger is designated for heating of liquids, particularly water.

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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

Modular heat exchanger for heating of liquids, consisting of independent heat sources (1), which are placed in a common chamber (2) and/or of independent heat sources (1), which are placed in separate chambers (2). The independent heat sources (1) being connected in a flow-through arrangement so that the opening (3) for supplying of cold water is placed in the lowest part of the common chamber (2) or in the lowest part of the separate chamber (2) of the lowest placed heat source (1) and the opening (4) for withdrawal of heated water is placed in the top part of the common chamber (2) or in the top part of the separate chamber (2) of the highest placed heat source (1).

Description

MODULAR HEAT EXCHANGER
Field of the invention
The invention concerns a modular heat exchanger for heating of a liquid, particularly water. Utilisation of solar energy and other renewable energy sources is becoming ever more widespread nowadays. Solar radiation heats a liquid in solar collectors, which in turn, through a heat exchanger or directly, heats up water, which is subsequently used. Since solar radiation is varying, thermal storage tanks are used to store water to have the water hot at the time of consumption.
Also in case of other sources of energy, e.g. electricity, gas, biomass, this method of obtaining and keeping hot water in thermal storage tanks following its heating up is very widespread.
Background of the invention
Presently there are two main methods of placement of heat exchangers and their various combinations in water heating. The first method consists in placement of heat exchangers within the thermal storage tank. In the thermal storage tank, there are one or more heat exchangers of typically a tubular shape. Another method consists in placement of the heat exchanger or heat exchangers outside of the thermal storage tank. In such case, plate exchangers prevail. Their mutual combinations are also possible. Recently, interest is being focused on thermal layering of water in thermal storage tanks since based on present knowledge, the layered ones have higher efficiency in storage of thermal energy than the non- layered ones.
Thermal layering occurs when heated water is fed into the thermal storage tank at the place of approximately the same temperature and the hot water is withdrawn from the topmost place of the thermal storage tank and the inlet of cold water is at the lowest point of the thermal storage tank. In such a situation, mixing of water layers does not occur. Thermal layering is influenced, in particular, by withdrawal of hot water and supply of fresh cold water.
That is why heat exchangers have recently been combined with a mechanical distribution system in the shape of a tube with openings, through which heated water is withdrawn from the exchanger and fed into the thermal storage tank into the appropriate temperature layer.
The objective of the present invention is to create such a modular heat exchanger, which prevents mixing of heated water with incoming cold water, and to ensure thereby, compared to prior-art methods of water heating, that a greater amount of water is heated to a higher temperature.
Description of the invention
The above-mentioned task is solved through a modular heat exchanger for heating of a liquid, particularly water, according to the present invention, the essence of which consists in the fact that the modular heat exchanger consists of independent heat sources, which are placed in a common chamber, and/or of independent heat sources, which are placed in separate chambers. The independent heat sources are connected in flow-through manner so that the heated water can freely rise through individual modules up to the hot water reservoir. The cold water inlet is placed in the lowest part of the common chamber or in the lowest part of the separate chamber of the lowest placed heat source and the outlet of the heated water is placed in the top part of the common chamber or in the top part of the separate chamber of the highest placed heat source.
The coldest water from the thermal storage tank or from its outer jacket exchanger or from another source of water is fed to the bottom part of the modular heat exchanger. Heated water exits the modular heat exchanger in the top part of the modular heat exchanger, which is connected to the thermal storage tank.
The most advantageous arrangement of independent sources of heat is arrangement one on top of the other, even if they can be placed also side by side or in a combination of the two arrangements. The common chamber and the separate chambers of individual independent heat sources are thermally insulated.
The source of energy to heat the water in individual independent heat sources may be a variable source of thermal energy, e.g., solar energy, and/or a constant heat source, e.g., electric power, central heating.
One common chamber may contain several independent heat sources placed one on top of the other. The heat source may be, e.g., an electric spiral commonly used in heating of water in thermal storage tanks, or a heat exchanger, etc.
Advantages of the modular heat exchanger according to the present invention consist particularly in the fact that individual independent heat sources are arranged and connected so that the incoming cold water is gradually heated up and mixing of heated and cold water does not occur, or heated water mixes with cold water in only a limited extent and heated water rises to the thermal storage tank or to a jacket heat exchanger of the thermal storage tank. Transport of the heated water to the storage tank does not require additional equipment such as a pump.
Advantages of the modular heat exchanger are increased in its combination with a distribution system ensuring layering of water in the thermal storage tank.
Description of drawings
Fig. 1 shows a modular heat exchanger with a common chamber of individual independent heat sources. Fig. 2 shows a modular heat exchanger with independent heat sources with separate chambers. Examples
Example 1
A modular heat exchanger was made according to Fig. 1 for heating of water according to the present invention, which consists of two independent heat exchangers 1 arranged one on top of the other. They have a common chamber 2.
In the bottom part of the common chamber 1, there is an opening 3 for incoming cold water. A variable heat source, solar collectors, functioning during the day, through the bottom heat exchanger 1, heat up the cold water fed through opening 3 in the bottom part of the common chamber 2. Heated water rises to the top heat exchanger 1, which is connected to a constant heat source - a gas boiler. In the top part of the chamber, there is an opening 4 for withdrawal of heated water.
Example 2
A modular heat exchanger was made according to Fig. 2 for heating of water according to the present invention, which consists of two independent heat exchangers 1 arranged one on top of the other as individual independent heat exchangers 1 mutually connected in a flow-through arrangement and connected to a jacket heat exchanger of a thermal storage tank. Cold water from the jacket heat exchanger enters the bottom independent heat exchanger 1 through opening 3. Heated water exits through opening 4 in the top independent heat exchanger 1 to the jacket exchanger.
Industrial utility
The industrial utility of the modular heat exchanger according to the present invention is apparent. The modular heat exchanger is designated for heating of liquids, particularly water.

Claims

C L A I M S
1. Modular heat exchanger for heating of liquids, particularly water, characterised in that it consists of independent heat sources (1), which are placed in a common chamber (2) and/or of independent heat sources (1), which are placed in separate chambers (2), the independent heat sources (1) being connected in a flow-through arrangement so that the opening (3) for supplying of cold water is placed in the lowest part of the common chamber (2) or in the lowest part of the separate chamber (2) of the lowest placed heat source (1) and the opening (4) for withdrawal of heated water is placed in the top part of the common chamber (2) or in the top part of the separate chamber (2) of the highest placed heat source (1 ).
2. Modular heat exchanger according to claim 1 characterised in that the independent heat sources (1) are arranged one on top of the other.
3. Modular heat exchanger according to claims 1 and 2 characterised in that the chamber (2) is thermally insulated.
4. Modular heat exchanger according to claims 1 to 3 characterised in that the source of energy to heat the water in the independent heat sources (1) is a variable source of thermal energy, e.g., solar energy, and/or a constant heat source, e.g., electric power, central heating.
PCT/SK2005/000010 2004-06-25 2005-06-24 Modular heat exchanger Ceased WO2006001780A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SKPP0263-2004 2004-06-25
SK263-2004A SK2632004A3 (en) 2004-06-25 2004-06-25 Modular heat exchanger

Publications (2)

Publication Number Publication Date
WO2006001780A1 true WO2006001780A1 (en) 2006-01-05
WO2006001780B1 WO2006001780B1 (en) 2006-05-18

Family

ID=35058409

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2005/000010 Ceased WO2006001780A1 (en) 2004-06-25 2005-06-24 Modular heat exchanger

Country Status (2)

Country Link
SK (1) SK2632004A3 (en)
WO (1) WO2006001780A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101782250A (en) * 2010-03-25 2010-07-21 麻庆亮 Solar water heating system in center of building
US8166710B2 (en) 2007-04-18 2012-05-01 The Invention Science Fund I, Llc High altitude structure for expelling a fluid stream through an annular space
EP2392882A3 (en) * 2010-06-01 2014-06-25 Outotec Oyj Heat exchange system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138682A2 (en) * 1983-10-07 1985-04-24 COMPAGNIE FRANCAISE DE RAFFINAGE Société anonyme dite: Apparatus for storing heat from two energy sources, and installation for using this apparatus
US4537348A (en) * 1982-01-08 1985-08-27 Goessi Hans System for efficient service water heating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537348A (en) * 1982-01-08 1985-08-27 Goessi Hans System for efficient service water heating
EP0138682A2 (en) * 1983-10-07 1985-04-24 COMPAGNIE FRANCAISE DE RAFFINAGE Société anonyme dite: Apparatus for storing heat from two energy sources, and installation for using this apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8166710B2 (en) 2007-04-18 2012-05-01 The Invention Science Fund I, Llc High altitude structure for expelling a fluid stream through an annular space
CN101782250A (en) * 2010-03-25 2010-07-21 麻庆亮 Solar water heating system in center of building
CN101782250B (en) * 2010-03-25 2012-12-12 麻庆亮 Solar water heating system in center of building
EP2392882A3 (en) * 2010-06-01 2014-06-25 Outotec Oyj Heat exchange system

Also Published As

Publication number Publication date
WO2006001780B1 (en) 2006-05-18
SK2632004A3 (en) 2006-01-05

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