EP1371908A1 - Chauffe-eau avec échangeur de chaleur à haute performance - Google Patents

Chauffe-eau avec échangeur de chaleur à haute performance Download PDF

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Publication number
EP1371908A1
EP1371908A1 EP02380124A EP02380124A EP1371908A1 EP 1371908 A1 EP1371908 A1 EP 1371908A1 EP 02380124 A EP02380124 A EP 02380124A EP 02380124 A EP02380124 A EP 02380124A EP 1371908 A1 EP1371908 A1 EP 1371908A1
Authority
EP
European Patent Office
Prior art keywords
tank
pipe coil
domestic
primary circuit
water
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Withdrawn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
EP02380124A
Other languages
German (de)
English (en)
Inventor
Justo Comadira Gonzalez
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
Priority to EP02380124A priority Critical patent/EP1371908A1/fr
Publication of EP1371908A1 publication Critical patent/EP1371908A1/fr
Withdrawn legal-status Critical Current

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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/082—Hot water storage tanks specially adapted therefor
    • 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
    • F24D3/087—Tap water heat exchangers specially adapted therefore

Definitions

  • the present invention refers to a high performance calorifier-heat exchanger constituted by means of a tank having adiabatic walls that makes use of a double coaxial pipe coil that increases the flow of heat and allows the storage and production of domestic hot water.
  • These heat exchangers employ of two circuits, the primary one through which the hot water circulates and another secondary one through which the water to be heated circulates.
  • a type of exchanger widely used to heat domestic water makes use of a pipe coil mounted internally in a tank with heat-lagged walls.
  • the efficiency of heat transfer depends on the exchange area, directly proportional to the length of the pipe coil and the diameter of the pipe as well as to the conductivity of the material; and on the other hand, on the thermal gradients that are established in the fluid particles adjacent to the exchange surface.
  • the tank Since the tank has a large capacity, the appearance of hot areas and others that are cold favour internal movements of flotation that generate transport phenomena by advection that favour the mixing phenomena.
  • the present invention proposes a special configuration of the pipe coil that resolves the previous problems.
  • the present invention relates to a calorifier-heat exchanger to heat domestic water in production and storage conditions.
  • the present calorifier-exchanger consists of a tank having adiabatic walls, mounted vertically or horizontally which includes a double coaxial pipe coil in its interior.
  • This double coaxial pipe coil is constituted mainly by two tubes, one internal and another external.
  • the external tube is that which corresponds to the primary hot water circuit serving to transfer its thermal energy to the water for domestic use.
  • This circuit enters through one of the walls of the adiabatic tank and connects with the hot water supply source.
  • This source of hot water can come from any external generator (e.g. boilers, solar panels, etc.) or it can even make use of a heating circuit with over-dimensioned means of heating.
  • a second tube corresponding to the secondary or domestic water circuit penetrates inside the tube of the primary circuit which is of larger diameter, after which point both are coaxial there being between the two an annular section.
  • the domestic water is heated by the primary circuit.
  • the internal tube When arriving at the end of the pipe coil, the internal tube again traverses the external tube to become independent once more and ends in a free vertical length on the lower part of the adiabatic tank.
  • the circulation in the pipe coil is in counter-current so that the final temperature of the domestic water when arriving at the end of the pipe coil is close to the temperature of the incoming hot water of the primary circuit.
  • This final length has a plurality of perforations that favour a gradual loss of head, in turn diffusing the heated water.
  • the pipe coil transfers heat through its external face, since the external annular section corresponds to the primary circuit assuring the temperature of the tank at all times with respect to possible heat loss or because the appropriate temperature has not been reached.
  • the annular geometry of the primary circuit favours a greater loss of head which is dissipated as heat in the interior of the tank.
  • the primary circuit transfers all its heat radially toward the tank through the external wall since the little retained water remaining in the secondary circuit is quickly heated and offers hardly no thermal inertia.
  • the primary circuit is opened when a drop is detected in the internal temperature of the tank.
  • the other eventuality that opens the primary circuit is when domestic hot water is consumed.
  • the ingress of cold water to the pipe coil is detected by a sensor that opens the primary circuit.
  • Figure 1 is a schematic representation of the calorifier-heat exchanger object of the invention.
  • the present invention consists of a calorifier/heat exchanger for production and storage of domestic hot water.
  • Figure 1 shows a schematic of an embodiment of the invention in which a tank (1) having adiabatic walls is shown, with inlets for two circuits: a primary circuit (2) for ingress of hot water, and a secondary circuit (3) for domestic water.
  • the primary water circuit (2) is that which serves to contribute the thermal energy to the domestic water that circulates through the secondary circuit (3).
  • the ends of the external tube (4.2) of the pipe coil (4) connect with the inlet and outlet of the primary circuit (2) feeding hot water into the annular space of the pipe coil (4) existing between the external tube (4.2) and the internal (4.1).
  • the internal tube (4.1) is connected to the secondary circuit (3) constituting the internal length to the exchanger.
  • the cold water enters and after travelling the whole pipe coil (4) wherein the exchange of heat takes place it egresses to the interior of the tank (1), on its lower part, through a diffuser (4.1.1) constituted by means of perforations implemented in the final length.
  • the interior of the tank (1) has a heat sensor (5) that opens the primary circuit (2) by means of a valve (2.1) when the temperature is below a certain preset value.
  • the hot water that enters the primary circuit (2) transfers heat to the interior of the tank since the water stored inside the internal tube (4.1) has a very reduced thermal inertia.
  • the circulation with respect to the primary circuit (2) is in counter-current so that the temperature of the domestic water at the end of the pipe coil (4) is close to the ingress temperature of the hot water of the primary circuit (2).
  • the loss of head in the primary circuit (2) due to the greater resistance that is offered by the annular section is transformed into heat delivered to the interior of the tank (1) and has to be made up by the circulation pump (6).
  • This same embodiment includes various manual valves that allow each of the lengths of the different circuits to be closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (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)
EP02380124A 2002-06-12 2002-06-12 Chauffe-eau avec échangeur de chaleur à haute performance Withdrawn EP1371908A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02380124A EP1371908A1 (fr) 2002-06-12 2002-06-12 Chauffe-eau avec échangeur de chaleur à haute performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02380124A EP1371908A1 (fr) 2002-06-12 2002-06-12 Chauffe-eau avec échangeur de chaleur à haute performance

Publications (1)

Publication Number Publication Date
EP1371908A1 true EP1371908A1 (fr) 2003-12-17

Family

ID=29558455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02380124A Withdrawn EP1371908A1 (fr) 2002-06-12 2002-06-12 Chauffe-eau avec échangeur de chaleur à haute performance

Country Status (1)

Country Link
EP (1) EP1371908A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006036121A1 (fr) * 2004-09-29 2006-04-06 Thermia Värme Ab Echangeur thermique
KR100644931B1 (ko) 2004-09-23 2006-11-15 전석영 보일러의 열 교환기
AT501916B1 (de) * 2005-05-19 2006-12-15 Fernwaerme Wien Ges M B H Einrichtung zum erwärmen eines flüssigen mediums
EP3163208A1 (fr) * 2015-10-29 2017-05-03 Paul Ivars Systeme de chauffage et dispositif de production d'eau chaude sanitaire et de chauffage incorporant ledit systeme de chauffage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921708A (en) * 1970-10-07 1975-11-25 Ygnis Sa Heat exchanger and method of operation thereof
AT368271B (de) * 1979-09-06 1982-09-27 Austria Email Ag Waermetauscher
EP0870993A1 (fr) * 1997-04-10 1998-10-14 Metaal Vries B.V. Accumulateur d'eau chaude
EP1103775A2 (fr) * 1999-11-23 2001-05-30 Heatex B.V. Echangeur de chaleur et système de production d'eau chaude utilisant celui-ci

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921708A (en) * 1970-10-07 1975-11-25 Ygnis Sa Heat exchanger and method of operation thereof
AT368271B (de) * 1979-09-06 1982-09-27 Austria Email Ag Waermetauscher
EP0870993A1 (fr) * 1997-04-10 1998-10-14 Metaal Vries B.V. Accumulateur d'eau chaude
EP1103775A2 (fr) * 1999-11-23 2001-05-30 Heatex B.V. Echangeur de chaleur et système de production d'eau chaude utilisant celui-ci

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100644931B1 (ko) 2004-09-23 2006-11-15 전석영 보일러의 열 교환기
WO2006036121A1 (fr) * 2004-09-29 2006-04-06 Thermia Värme Ab Echangeur thermique
EP1983286A1 (fr) * 2004-09-29 2008-10-22 Thermia Värme AB Agencement d'échangeur de chaleur
AT501916B1 (de) * 2005-05-19 2006-12-15 Fernwaerme Wien Ges M B H Einrichtung zum erwärmen eines flüssigen mediums
EP3163208A1 (fr) * 2015-10-29 2017-05-03 Paul Ivars Systeme de chauffage et dispositif de production d'eau chaude sanitaire et de chauffage incorporant ledit systeme de chauffage
FR3043174A1 (fr) * 2015-10-29 2017-05-05 Paul Emile Ivars Systeme de chauffage et dispositif de production d'eau chaude sanitaire et de chauffage incorporant ledit systeme de chauffage

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