FR2669717A1 - Sanitary water heating by recovery from waste water - Google Patents

Sanitary water heating by recovery from waste water Download PDF

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Publication number
FR2669717A1
FR2669717A1 FR9014720A FR9014720A FR2669717A1 FR 2669717 A1 FR2669717 A1 FR 2669717A1 FR 9014720 A FR9014720 A FR 9014720A FR 9014720 A FR9014720 A FR 9014720A FR 2669717 A1 FR2669717 A1 FR 2669717A1
Authority
FR
France
Prior art keywords
water
evaporator
heating
waste water
installation according
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Withdrawn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
FR9014720A
Other languages
French (fr)
Inventor
Barrault Jean-Luc
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.)
SOFATH
Original Assignee
SOFATH
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 SOFATH filed Critical SOFATH
Priority to FR9014720A priority Critical patent/FR2669717A1/en
Publication of FR2669717A1 publication Critical patent/FR2669717A1/en
Withdrawn legal-status Critical Current

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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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • 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
    • F24D17/02—Domestic hot-water supply systems using heat pumps
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • 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]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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]
    • Y02B30/56—Heat recovery units

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  • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a device which makes possible heating of sanitary water by recovery from waste water with the aid of a refrigerating circuit. The invention is constituted by a waste water reservoir 18 which is passed through by an evaporator 17 which recovers the energy and then transfers it to the sanitary water reservoir 15 constituted by a tank, on which the condenser 13 is wound, laid against the outside, the refrigerating compressor 11 carrying out the energy transfer. The device according to the invention is intended in particular for the production of hot sanitary water and for heating all premises.

Description

La présente invention concerne essentiellement un dispositif thermodynamique permettant le chauffage de l'eau chaude sanitaire par récupération de l'énergie contenue dans les eaux usées. The present invention essentially relates to a thermodynamic device for heating domestic hot water by recovering the energy contained in the wastewater.

On connait deja des pompes à chaleur produisant l'eau chaude sanitaire caractérisées en ce que l'évaporateur prélève de l'énergie sur l'air ambiant, sur l'air extrait ou sur le sol extérieur. Heat pumps producing domestic hot water are already known, characterized in that the evaporator takes energy from the ambient air, from the extracted air or from the outside ground.

On connait déja des échangeurs récupérant une partie de l'énergie contenue dans les eaux usées. We already know exchangers recovering part of the energy contained in wastewater.

Dans les systémes de production d'eau chaude sanitaire actuels, le coefficient de performance est limité en raison de la faible température du milieu sur lequel on prélève l'énergie. In current domestic hot water production systems, the coefficient of performance is limited due to the low temperature of the medium from which the energy is taken.

D'autre part cette source d'énergie n' est pas toujours disponible et le besoin de chauffage de l'eau n'est pas synchronisé avec la disponibilité de cette source. On the other hand this source of energy is not always available and the need for heating water is not synchronized with the availability of this source.

C'est d'une manière générale un but de l'invention de fournir une installation qui ne présente pas les inconvénients des installations connues et rappelées ci-dessus. It is generally an object of the invention to provide an installation which does not have the drawbacks of the installations known and recalled above.

C'est en particulier un but de l'invention de fournir une installation de chauffage de l'eau, par pompe- à chaleur, dont la captation d'énergie s'effectue directement dans les eaux usées chaudes. It is in particular an object of the invention to provide a water heating installation, using a heat pump, the energy capture of which takes place directly in the hot waste water.

C'est aussi un but de l'invention de fournir une installation de production d'eau chaude sanitaire par circuit frigorifique, dont le transfert d'énergie à la source chaude s'effectue de manière directe à travers un matériau sans que le matériau de l'échangeur frigorifique soit en contact direct avec l'eau sanitaire et élimine ainsi toute possibilité de corrosion.  It is also an object of the invention to provide an installation for producing domestic hot water by refrigeration circuit, the transfer of energy of which to the hot source takes place directly through a material without the material of the refrigeration heat exchanger is in direct contact with sanitary water and thus eliminates any possibility of corrosion.

C'est aussi un but de l'invention de fournir une installation de chauffage de l'eau sanitaire dont le seul organe en mouvement est le compresseur frigorifique. It is also an object of the invention to provide an installation for heating domestic water, the only moving member of which is the refrigeration compressor.

C'est encore un but de l'invention de fournir une disposition qui permet d'élever sensiblement le coefficient de performance de l'installation. It is another object of the invention to provide an arrangement which makes it possible to significantly increase the performance coefficient of the installation.

Une installation de chauffage de l'eau sanitaire selon l'invention est caractérisée en ce que l'évaporateur est constitué d'un ensemble de tuyauteries immergées dans un tube servant à l'évacuation des eaux usées et faisant salement office de réserve d'eau. A sanitary water heating installation according to the invention is characterized in that the evaporator consists of a set of pipes immersed in a tube used for the evacuation of waste water and acting dirty as a water reserve .

Selon une autre caractéristique de l'invention, le condenseur du circuit frigorifique est constitué d'un ensemble de tuyauteries plaquées contre une cuve métallique contenant l'eau à chauffer, le contact intime entre tube et cuve étant assuré par une matière bonne conductrice de la chaleur. According to another characteristic of the invention, the condenser of the refrigeration circuit consists of a set of pipes pressed against a metal tank containing the water to be heated, the intimate contact between tube and tank being ensured by a material which is good conductor of the heat.

Les dessins annexés illustrent l'invention
- La figure 1 représente un shéma de l'installation selon
l'invention.The accompanying drawings illustrate the invention
- Figure 1 shows a diagram of the installation according to
the invention.

- La figure 2 représente le montage de l'évaporateur dans le
tube d'évacuation des eaux usees. - Figure 2 shows the mounting of the evaporator in the
waste water evacuation tube.

- La figure 3 représente le montage du condenseur sur la cuve
contenant l'eau à chauffer.- Figure 3 shows the mounting of the condenser on the tank
containing the water to be heated.

- La figure 4 représente le schéma de l'appareillage électrique
nécessaire pour obtenir suffisament d'eau chaude quelle que
soit la température de l'eau usée.- Figure 4 shows the diagram of the electrical equipment
necessary to obtain sufficient hot water whatever
or the temperature of the wastewater.

- La figure 5 représente une forme de réalisation de la
canalisation d'eaux usees. - Figure 5 shows an embodiment of the
waste water pipeline.

Une installation de chauffage selon l'invention, figure 1, comprend un compresseur frigorifique 11 refoulant par une tuyauterie 12 vers le condenseur 13 enroulé autour de la cuve 14 contenant l'eau à chauffer. Le fluide frigorigéne chaud se condense au contact de la cuve 14, descend dans les différentes spires du condenseur 13. I1 traverse ensuite le déshydrateur 15 puis le détendeur 16. Le fluide frigorigéne est admis dans l'évaporateur 17 qui est immergé dans la réserve d'eaux usées 18. La tuyauterie de liaison 19 ferme la boucle et permet un cycle continu. L'évaporateur 17 peut également être réalisé avec un tube plaqué à l'extérieur de la réserve d'eaux usées 18. La tubulure d'alimentation 20 permet l'apport d'eaux usées provenant du réseau.Le coude à 180 référence 21 et la tubulure remontante 22 permettent le remplissage permanent du réservoir d'eaux usées 18. A heating installation according to the invention, FIG. 1, comprises a refrigeration compressor 11 delivering through a pipe 12 to the condenser 13 wound around the tank 14 containing the water to be heated. The hot refrigerant condenses on contact with the tank 14, descends into the various turns of the condenser 13. I1 then passes through the dehydrator 15 then the regulator 16. The refrigerant is admitted into the evaporator 17 which is immersed in the reserve d waste water 18. The connecting pipe 19 closes the loop and allows a continuous cycle. The evaporator 17 can also be produced with a tube placed outside the waste water reserve 18. The supply pipe 20 allows the supply of waste water coming from the network. The bend at 180 reference 21 and the rising pipe 22 allows the permanent filling of the waste water tank 18.

La figure 2 représente le montage de l'évaporateur dans le réservoir d'eaux usées 18. Cet évaporateur est constitué d'une tubulure 30 en acier inoxydable, en acier ou en cuivre. Gainé de matière plastique, enroulé en spirale et plaqué contre la paroi intérieure du tube d'évacuation d'eaux usées, afin d'éviter le freinage et l'évacuation de matières solides. Le réservoir 18 est fermé aux deux extrémités par un bouchon réduit 31 si le diamètre du réservoir est supérieur à celui de la canalisation d'alimentation. La sortie de l'évaporateur 17 à travers le fond 31 est réalisé par un presse-étoupe 32. FIG. 2 shows the mounting of the evaporator in the waste water tank 18. This evaporator consists of a tube 30 made of stainless steel, steel or copper. Sheathed in plastic material, wound in a spiral and pressed against the inside wall of the waste water evacuation tube, in order to avoid braking and evacuation of solids. The reservoir 18 is closed at both ends by a reduced plug 31 if the diameter of the reservoir is greater than that of the supply line. The outlet of the evaporator 17 through the bottom 31 is produced by a cable gland 32.

La figure 3 représente le montage du condenseur sur la cuve contenant l'eau à chauffer. Le tube 40 est enroulé, plaqué sur la cuve 42, l'écartemment et la longueur des tubes étant déterminés par la puissance à fournir à la cuve 42.  Figure 3 shows the mounting of the condenser on the tank containing the water to be heated. The tube 40 is wound, pressed against the tank 42, the spacing and the length of the tubes being determined by the power to be supplied to the tank 42.

Entre les différentes spires du tube 40, une matière bonne conductrice de la chaleur 41 est insérée de manière à éliminer les espaces d'air. Une isolation 43 permet de conserver l'énergie reçue par l'eau et évite la déperdition du condenseur vers l'ambiance.Between the different turns of the tube 40, a material which conducts heat well 41 is inserted so as to eliminate the air spaces. An insulation 43 makes it possible to conserve the energy received by the water and avoids the loss of the condenser towards the environment.

La figure 4 représente l'emplacement des différents matériels alimentés électriquement et nécessaires au bon fonctionnement du systéme. Le compresseur 51 fonctionne si, simultanément le thermostat antigel 50 et le thermostat d'eau sanitaire 53 sont fermés. FIG. 4 represents the location of the various materials supplied electrically and necessary for the proper functioning of the system. The compressor 51 operates if the antifreeze thermostat 50 and the domestic water thermostat 53 are simultaneously closed.

Lorsque le thermostat 50 s'ouvre pour éviter le gel du réservoir d'eaux usées, le compresseur 51 s'arrête. Si l'eau n'est pas assez chaude, la résistance électrique 52 se met en service mais seulement après un temps suffisament long après chaque arrêt par l'antigel.When the thermostat 50 opens to avoid freezing of the waste water tank, the compressor 51 stops. If the water is not hot enough, the electric resistance 52 starts up but only after a sufficiently long time after each stop by the antifreeze.

Ce temps est controlé par une horloge ou par une temporisation type anti court cycle.This time is controlled by a clock or by an anti short cycle time delay.

La figure 6 représente la réserve d'eaux usées réalisée par deux demi-piéces 71 en plastique thermoformée ou injectée. FIG. 6 represents the reserve of waste water produced by two half-pieces 71 of thermoformed or injected plastic.

Le dispositif selon l'invention est destiné au chauffage de l'eau chaude sanitaire et au chauffage des locaux.  The device according to the invention is intended for heating domestic hot water and for heating premises.

Claims (5)

REVENDICATIONS 1) Installation de chauffage d'eau sanitaire par circuit frigorifique, caractérisée en ce que l'évaporateur 17 est immergé dans un tube 18 d'écoulement des eau usées 21 et que le condenseur 1; est enroulé à l'extérieur de la cuve 15 contenant 1eau sanitaire. 1) Sanitary water heating installation by refrigeration circuit, characterized in that the evaporator 17 is immersed in a waste water flow tube 18 21 and that the condenser 1; is wound outside the tank 15 containing the sanitary water. 2) Installation selon la revendication i caractérisée n ce ou l'évaporateur 17 est réalisé en tube métallique gainé de matière plastique. 2) Installation according to claim i characterized n that or the evaporator 17 is made of metal tube sheathed with plastic. 3i Installation selon la revendication i caractérisée en ce que l'évaporateur 30 est enroulé en serpentin à 1' intrieur d'une évacuation 18 des eaux usees réalisée en matière plastique. 3i Installation according to claim i characterized in that the evaporator 30 is wound in a coil 1 inside a discharge 18 of wastewater made of plastic. 4) Installation selon la revendication 1 caractérisée en ce que le condenseur 40 est enroulé en serpentin autour d'une cuve 42 en ac@er revêtue d'une matière 41 conduisant bien la chaleur et dune couche de matériau isolant 43. 4) Installation according to claim 1 characterized in that the condenser 40 is wound in a serpentine around a tank 42 in ac @ er coated with a material 41 conducting heat well and a layer of insulating material 43. 5) Installation selon la revendication 1 caracterisée en ce oue un dispositif électrique 52 permet l'appoint d'énergie si la guantité de chaleur contenue dans les eaux usées est insuffisante pour le chauffage de l'eau.  5) Installation according to claim 1 characterized in that an electric device 52 allows the energy to be added if the amount of heat contained in the wastewater is insufficient for heating the water. 6) Installation selon le revendication 1 caractérisée en ce que le tube d'écoulement des eau usees constitue une réserve d'eau par assemblage de deux demi-coquilles 71 en matière plastique injectée ou thermoformée.  6) Installation according to claim 1 characterized in that the used water flow tube constitutes a water reserve by assembling two half-shells 71 of injected or thermoformed plastic.
FR9014720A 1990-11-22 1990-11-22 Sanitary water heating by recovery from waste water Withdrawn FR2669717A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9014720A FR2669717A1 (en) 1990-11-22 1990-11-22 Sanitary water heating by recovery from waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9014720A FR2669717A1 (en) 1990-11-22 1990-11-22 Sanitary water heating by recovery from waste water

Publications (1)

Publication Number Publication Date
FR2669717A1 true FR2669717A1 (en) 1992-05-29

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FR9014720A Withdrawn FR2669717A1 (en) 1990-11-22 1990-11-22 Sanitary water heating by recovery from waste water

Country Status (1)

Country Link
FR (1) FR2669717A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004051148A1 (en) * 2002-11-27 2004-06-17 Janssen Terrance E Heat exchange apparatus, system, and methods regarding same
WO2004085927A1 (en) * 2003-03-28 2004-10-07 Siddons Stevens Developments Pty Ltd Water heater/cooler
CN100430665C (en) * 2003-03-28 2008-11-05 西登斯史蒂文斯发展控股有限公司 Water heater/cooler
GB2483228A (en) * 2010-08-31 2012-03-07 Warmflow Engineering Company Ltd Hot water storage cylinder
GB2504913A (en) * 2011-07-01 2014-02-19 Charles Madondo Heat recovery system
CN105571136A (en) * 2016-02-01 2016-05-11 无锡普力达智能科技有限公司 Waste water heat energy recovery device with automatic cleaning function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312735A1 (en) * 1975-05-30 1976-12-24 Munich Bernard Hot water system for domestic use - has heat pump between waste water reservoir and incoming fresh water
US4304292A (en) * 1979-07-16 1981-12-08 Cardone Jeremiah V Shower
EP0114583A2 (en) * 1982-12-24 1984-08-01 INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA S.p.A. Device for recovering heat from domestic waste water
JPS6080095A (en) * 1983-10-07 1985-05-07 Nippon Furnace Kogyo Kaisha Ltd Shell tube heat exchanger
EP0336751A2 (en) * 1988-04-08 1989-10-11 Siddons Ramset Limited Water heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312735A1 (en) * 1975-05-30 1976-12-24 Munich Bernard Hot water system for domestic use - has heat pump between waste water reservoir and incoming fresh water
US4304292A (en) * 1979-07-16 1981-12-08 Cardone Jeremiah V Shower
EP0114583A2 (en) * 1982-12-24 1984-08-01 INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA S.p.A. Device for recovering heat from domestic waste water
JPS6080095A (en) * 1983-10-07 1985-05-07 Nippon Furnace Kogyo Kaisha Ltd Shell tube heat exchanger
EP0336751A2 (en) * 1988-04-08 1989-10-11 Siddons Ramset Limited Water heater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN no. 9223 (M-411)10 Septembre 1985 & JP-A-60 080 095 (NIPPON FURNACE KOGYO KK ) 7 Mai 1985 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004051148A1 (en) * 2002-11-27 2004-06-17 Janssen Terrance E Heat exchange apparatus, system, and methods regarding same
WO2004085927A1 (en) * 2003-03-28 2004-10-07 Siddons Stevens Developments Pty Ltd Water heater/cooler
CN100430665C (en) * 2003-03-28 2008-11-05 西登斯史蒂文斯发展控股有限公司 Water heater/cooler
GB2483228A (en) * 2010-08-31 2012-03-07 Warmflow Engineering Company Ltd Hot water storage cylinder
GB2483228B (en) * 2010-08-31 2016-02-10 Warmflow Engineering Company Ltd Hot water storage cylinder
GB2504913A (en) * 2011-07-01 2014-02-19 Charles Madondo Heat recovery system
CN105571136A (en) * 2016-02-01 2016-05-11 无锡普力达智能科技有限公司 Waste water heat energy recovery device with automatic cleaning function

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