EP1957889B1 - Heat pump for heating swimming pool water - Google Patents

Heat pump for heating swimming pool water Download PDF

Info

Publication number
EP1957889B1
EP1957889B1 EP06841814A EP06841814A EP1957889B1 EP 1957889 B1 EP1957889 B1 EP 1957889B1 EP 06841814 A EP06841814 A EP 06841814A EP 06841814 A EP06841814 A EP 06841814A EP 1957889 B1 EP1957889 B1 EP 1957889B1
Authority
EP
European Patent Office
Prior art keywords
heat pump
water
condenser
heat
heat exchange
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.)
Active
Application number
EP06841814A
Other languages
German (de)
French (fr)
Other versions
EP1957889A1 (en
Inventor
Julien Corroy
Joël QUEIREL
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.)
Financiere Piscine Equipement
Original Assignee
Financiere Piscine Equipement
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 Financiere Piscine Equipement filed Critical Financiere Piscine Equipement
Publication of EP1957889A1 publication Critical patent/EP1957889A1/en
Application granted granted Critical
Publication of EP1957889B1 publication Critical patent/EP1957889B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures

Definitions

  • the present invention relates to a heat pump for the heating of swimming pool water, and a method of heating swimming pool water.
  • Heat pumps are thermodynamic systems which comprise a primary refrigerant circuit which comprises a compressor which supplies a condenser which constitutes a heat exchanger between the refrigerant and a heat source, an expander and an evaporator which constitutes a heat exchanger. heat.
  • the heat exchangers exchange heat with a cold source and a hot source, one of which is an external environment, for example atmospheric air or a stream.
  • the document U.S. 5,272,885 describes a heat pump system used for room air conditioning. It comprises on the one hand a heat pump assembly and on the other hand various user circuits.
  • the external medium is constituted by a water supply unit.
  • the unit in this document cools the water in the water supply unit, and in the air cooling mode, the unit removes heat from the air of internal air conditioning units and heats the water of the water supply unit.
  • the apparatus is highly complex because it includes many control systems: an internal controller with each conditioning unit, a distribution controller, and an external controller. All these controllers control all-or-nothing or progressive regulation (opening control of flow control valves, variable capacity compressor, progressive regulator adjustment, additional opening control of flow control valve, etc.). Many sensors are incorporated in the pump and each conditioning unit. Two valves can switch on complementary heat exchangers.
  • This device has been described because it shows that simple air conditioning of premises by use of a heat pump can be very complex, that is to say may require many devices with sensing, control, control, and other functions. and which are sensitive to breakdowns, so that specialized personnel is required for the implementation of such a heat pump.
  • the system should be adapted to allow water heating, instead of air conditioning.
  • heat pumps for heating swimming pool water.
  • These heat pumps comprise a primary refrigerant circuit which comprises, as indicated on the figure 1 a compressor 10 which supplies a condenser 12 (which constitutes a heat exchanger) between the refrigerant and the swimming pool water to be heated, an expander 14 and an evaporator 16 (which constitutes a heat exchanger) between the external medium, for example, outside air, and refrigerant.
  • a compressor 10 which supplies a condenser 12 (which constitutes a heat exchanger) between the refrigerant and the swimming pool water to be heated
  • an expander 14 and an evaporator 16 which constitutes a heat exchanger
  • the characteristics of the exchangers, in particular their dimensions, and the adjustment of the expander and the compressor are optimized for a determined operating speed.
  • the condenser is intended to allow the heat pump to give its maximum power while maintaining an optimal operating regime from the point of view of the refrigerant circuit (pressure and temperature of the refrigerant).
  • the cooling fluid is cooled by very important way so that the pressure of the refrigerant in the condenser is very low.
  • the efficiency of the heat pump generally defined by its coefficient of performance, is reduced and it may even happen that the heat pump has a malfunction and is even damaged.
  • the heat exchange in the condenser is reduced, because the flow of water is low or because the temperature of the pool water is high, the refrigerant is heated significantly and causes an increase of pressure in the condenser.
  • the efficiency of the heat pump is also reduced, the operation can be disrupted and the heat pump can even be damaged. In particular, beyond a certain pressure, the machine is stopped by a safety pressure switch.
  • pool heat pumps generally include a hydraulic bypass located upstream of the heat pump and to adjust the flow of water flowing in the secondary circuit of the condenser (exchanger) of the pump. to heat, so that the heat exchange remains optimal and that the operation of the heat pump is satisfactory.
  • the installation must therefore include a regulating device intended to vary the flow of water circulating in the condenser. Given the treated water flow rates, such a control device has a relatively delicate operation and is expensive. Very often, it is simply replaced by a simple manual device that no longer gives regulation function.
  • the object of the invention is to solve the problems raised, or at least to reduce their acuity, by a simplification of the pool water heating heat pumps, which notably allows a reduction of cost and sensitivity to breakdowns.
  • the heat exchange surface of the primary circuit of the condenser is automatically reduced.
  • the same heating power can be practically transmitted to the secondary circuit of the condenser, and the primary circuit of the heat pump can operate with an optimum operating rate of pressure-temperature of the refrigerant.
  • the primary refrigerant circuit always comprises at least one heat exchange circuit, and at least one other heat exchange circuit can be switched on by at least one switching element, under the control of a controller which is connected to a sensor of a parameter of operation, such as the refrigerant vapor pressure between the compressor and the expander.
  • the primary circuit of the expander is increased by switching on additional heat exchange circuits, and the operation is reversed when the measured pressure decreases.
  • the invention relates to a heat pump for heating the water of a swimming pool, of the type which comprises, in a primary circuit of refrigerant, a compressor, a condenser constituting a heat exchanger between the refrigerant and the swimming pool water flowing in a secondary circuit, an expander, and an evaporator constituting a heat exchanger between the external medium and the refrigerant;
  • the condenser comprises at least two heat exchange circuits
  • the heat pump comprises a sensor of a parameter of the operation of the heat pump, at least one switching element for the circulation of the refrigerant between a state of circulation in only one of the heat exchange circuits and a state of circulation in at least two of the heat exchange circuits, and a control member of the switching member at least as a function of the value of the sensor signal.
  • At least one switching member comprises at least one electromagnetic valve.
  • the sensor of an operating parameter of the heat pump detects the pressure of the refrigerant on the high-pressure part of the refrigerant circuit, for example between the compressor and the condenser.
  • the heat pump comprises at least two heat exchange circuits which are arranged in series in the condenser. It can then further comprise a branch with respect to one of the heat exchange circuits.
  • the heat pump comprises at least two heat exchange circuits arranged in parallel in the condenser.
  • the invention also relates to a method of heating swimming pool water using a heat pump according to the preceding paragraphs, which comprises the measurement of a parameter of the operation of the heat pump, the comparison of the value measured parameter to a threshold and, when the parameter exceeds a threshold, the control of the switching of the circulation of the refrigerant in a heat exchange circuit.
  • the comparison to a threshold comprises the use of two different thresholds depending on whether the parameter increases or decreases, so that the control is provided with a hysteresis effect.
  • the compressor 10 carries the refrigerant, in the vapor state, at a high pressure, this pressure being advantageously measured by a sensor 18.
  • the refrigerant in the vapor state enters the condenser 12 and circulates in a part primary circuit 20.
  • the primary circuit portion 20 of the condenser 12 may comprise, according to the invention, at least two heat exchange circuits 22, connected in series and one of which may have a bypass 24 which is switched on or off by a electromagnetic valve 26.
  • this valve 26 When this valve 26 is open, the refrigerant circulates in series in the two heat exchange circuits 22, for example two coils, while when the valve 26 feeds the bypass 24, only the second circuit 22 is supplied.
  • the figure 3 represents a variant in which heat exchange circuits 22 are connected in parallel and each heat exchange circuit, beyond the first, is switched on or off by control of an associated electromagnetic valve 28.
  • the series circuit of the figure 2 like the parallel circuit of the figure 3 may have a higher number of heat exchange circuits, i.e., coils, as suggested by the dashed lines.
  • the important characteristic of the invention is that, thanks to the electromagnetic valves 26, 28, the heat exchange capacity of the primary circuit 20 of the condenser 12 can be modulated to several values so that the heat pump is always in its conditions optimal operation.
  • the figure 4 represents an example of condenser 12 according to the invention.
  • the water enters through an inlet 30 to near the opposite end of the condenser 12 where it meets the bottom 31 of a deflector 32 which forces water to return to the side of its inlet, before be deflected again by the end of the outer body 34 to an outlet 36 of water.
  • the water flows to the surface of a coil 38 forming a first heat exchange circuit 22.
  • the water flows to the surface of another coil 40 constituting a second heat exchange circuit 22 of the primary circuit.
  • the figure 5 represents a practical embodiment of the condenser shown in the figure 4 , with the same numerical references as on this one.
  • the modulation of the heat exchange surface of the condenser is ensured by measuring the pressure at the outlet of the condenser, it is possible to measure other parameters.
  • the measured parameter can therefore be any combination of parameters commonly used for this purpose in heat pump technology.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Conditioning Control Device (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The pump has a primary circuit (20) including a compressor (10), an expander (14), and a condenser (12) comprising two heat exchange circuits. A heat pump comprises a pressure sensor (18), and a unit e.g. solenoid valve, switching the circulation of a refrigerating fluid between states in which it is circulated in one or two of the heat exchange circuits. A unit controls the switching unit according to the value of the signal from the pressure sensor. An independent claim is also included for a method of heating swimming pool water using a heat pump.

Description

La présente invention concerne une pompe à chaleur destinée au chauffage d'eau de piscine, et un procédé de chauffage d'eau de piscine.The present invention relates to a heat pump for the heating of swimming pool water, and a method of heating swimming pool water.

Les pompes à chaleur sont des systèmes thermodynamiques qui comprennent un circuit primaire de fluide frigorifique qui comprend un compresseur qui alimente un condenseur qui constitue un échangeur de chaleur entre le fluide frigorifique et une source de chaleur, un détendeur et un évaporateur qui constitue un échangeur de chaleur. Les échangeurs de chaleur échangent de la chaleur avec une source froide et une source chaude dont l'une est un milieu extérieur, par exemple l'air atmosphérique ou un cours d'eau.Heat pumps are thermodynamic systems which comprise a primary refrigerant circuit which comprises a compressor which supplies a condenser which constitutes a heat exchanger between the refrigerant and a heat source, an expander and an evaporator which constitutes a heat exchanger. heat. The heat exchangers exchange heat with a cold source and a hot source, one of which is an external environment, for example atmospheric air or a stream.

Le document US-5 272 885 décrit un système de pompe à chaleur utilisé pour le conditionnement d'air de locaux. Il comporte d'une part un ensemble formant pompe à chaleur et d'autre part divers circuits utilisateurs. Dans cette utilisation, le milieu extérieur est constitué par une unité d'alimentation en eau. Dans le mode de chauffage d'air, l'appareil de ce document refroidit l'eau de l'unité d'alimentation en eau, et dans le mode de refroidissement d'air, l'appareil retire de la chaleur de l'air d'unités internes de conditionnement d'air et chauffe l'eau de l'unité d'alimentation en eau.The document U.S. 5,272,885 describes a heat pump system used for room air conditioning. It comprises on the one hand a heat pump assembly and on the other hand various user circuits. In this use, the external medium is constituted by a water supply unit. In the air heating mode, the unit in this document cools the water in the water supply unit, and in the air cooling mode, the unit removes heat from the air of internal air conditioning units and heats the water of the water supply unit.

L'appareil a une grande complexité, car il comprend de nombreux systèmes de contrôle : un contrôleur interne avec chaque unité de conditionnement, un contrôleur de distribution, et un contrôleur externe. Tous ces contrôleurs commandent des régulations par tout ou rien ou progressives (régulation d'ouverture de vannes de réglage de débit, compresseur à capacité variable, réglage progressif de détendeur, commande d'ouverture complémentaire de vanne de réglage de débit, etc.). De nombreux capteurs sont incorporés à la pompe et à chaque unité de conditionnement. Deux vannes peuvent mettre en circuit des échangeurs de chaleur complémentaires.The apparatus is highly complex because it includes many control systems: an internal controller with each conditioning unit, a distribution controller, and an external controller. All these controllers control all-or-nothing or progressive regulation (opening control of flow control valves, variable capacity compressor, progressive regulator adjustment, additional opening control of flow control valve, etc.). Many sensors are incorporated in the pump and each conditioning unit. Two valves can switch on complementary heat exchangers.

On a décrit cet appareil car il montre que le simple conditionnement d'air de locaux par utilisation d'une pompe à chaleur peut présenter une grande complexité, c'est-à-dire peut nécessiter de nombreux dispositifs ayant des fonctions de détection, de régulation, de commande, etc. et qui sont sensibles aux pannes, de sorte qu'un personnel spécialisé est nécessaire pour la mise en oeuvre d'une telle pompe à chaleur. Le système devrait être adapté pour permettre le chauffage d'eau, à la place d'un conditionnement d'air.This device has been described because it shows that simple air conditioning of premises by use of a heat pump can be very complex, that is to say may require many devices with sensing, control, control, and other functions. and which are sensitive to breakdowns, so that specialized personnel is required for the implementation of such a heat pump. The system should be adapted to allow water heating, instead of air conditioning.

Les documents GB-2 015 139 et 406 137 décrivent la commutation de dispositifs d'échange de chaleur entre des états donnant des surfaces différentes d'échange de chaleur.The documents GB-2,015,139 and 406,137 describe the switching of heat exchange devices between states giving different heat exchange surfaces.

On sait déjà utiliser des pompes à chaleur pour le chauffage de l'eau des piscines. Ces pompes à chaleur comprennent un circuit primaire de fluide frigorifique qui comprend, comme indiqué sur la figure 1, un compresseur 10 qui alimente un condenseur 12 (qui constitue un échangeur de chaleur) entre le fluide frigorifique et l'eau de piscine à chauffer, un détendeur 14 et un évaporateur 16 (qui constitue un échangeur de chaleur) entre le milieu extérieur, par exemple l'air extérieur, et le fluide frigorifique.It is already known to use heat pumps for heating swimming pool water. These heat pumps comprise a primary refrigerant circuit which comprises, as indicated on the figure 1 a compressor 10 which supplies a condenser 12 (which constitutes a heat exchanger) between the refrigerant and the swimming pool water to be heated, an expander 14 and an evaporator 16 (which constitutes a heat exchanger) between the external medium, for example, outside air, and refrigerant.

Les caractéristiques des échangeurs, notamment leurs dimensions, et le réglage du détendeur et du compresseur sont optimisés pour un régime de fonctionnement déterminé. En particulier, le condenseur est destiné à permettre à la pompe à chaleur de donner sa puissance maximale tout en gardant un régime de fonctionnement optimal au point de vue du circuit frigorifique (pression et température du fluide frigorifique).The characteristics of the exchangers, in particular their dimensions, and the adjustment of the expander and the compressor are optimized for a determined operating speed. In particular, the condenser is intended to allow the heat pump to give its maximum power while maintaining an optimal operating regime from the point of view of the refrigerant circuit (pressure and temperature of the refrigerant).

Lorsqu'une telle pompe à chaleur est utilisée pour le chauffage d'eau de piscine, certains paramètres de fonctionnement ont des valeurs déterminées. Ainsi, même si l'eau de la piscine est très froide, à peine supérieure à 0 °C, l'utilisateur souhaite obtenir une température en général comprise entre 15 et 32 °C. En outre, le débit de circulation d'eau de la piscine est habituellement de l'ordre de 5 à 15 m3/h.When such a heat pump is used for heating swimming pool water, certain operating parameters have specific values. Thus, even if the pool water is very cold, just above 0 ° C, the user wishes to obtain a temperature in general of between 15 and 32 ° C. In addition, the water circulation rate of the pool is usually of the order of 5 to 15 m 3 / h.

On conçoit donc que, lorsque l'échange thermique est très important parce que le débit d'eau circulant dans le condenseur est très élevé et/ou parce que la température de l'eau est très basse, le fluide frigorifique est refroidi de façon très importante de sorte que la pression du fluide frigorifique dans le condenseur est très basse. Le rendement de la pompe à chaleur, défini en général par son coefficient de performance, est alors réduit et il peut même arriver que la pompe à chaleur présente un défaut de fonctionnement et qu'elle soit même endommagée.It is therefore conceivable that, when the heat exchange is very important because the flow rate of water circulating in the condenser is very high and / or because the water temperature is very low, the cooling fluid is cooled by very important way so that the pressure of the refrigerant in the condenser is very low. The efficiency of the heat pump, generally defined by its coefficient of performance, is reduced and it may even happen that the heat pump has a malfunction and is even damaged.

Par contre, si l'échange thermique dans le condenseur est réduit, parce que le débit d'eau est faible ou parce que la température de l'eau de piscine est élevée, le fluide frigorifique est échauffé de façon importante et provoque une augmentation de pression dans le condenseur. Le rendement de la pompe à chaleur est alors aussi réduit, le bon fonctionnement peut être perturbé et la pompe à chaleur peut même être endommagée. En particulier, au-delà d'une certaine pression, la machine est arrêtée par un pressostat de sécurité.On the other hand, if the heat exchange in the condenser is reduced, because the flow of water is low or because the temperature of the pool water is high, the refrigerant is heated significantly and causes an increase of pressure in the condenser. The efficiency of the heat pump is also reduced, the operation can be disrupted and the heat pump can even be damaged. In particular, beyond a certain pressure, the machine is stopped by a safety pressure switch.

Pour tenir compte de cette situation pratique, les pompes à chaleur de piscine comportent en général une dérivation hydraulique placée en amont de la pompe à chaleur et permettant de régler le débit d'eau circulant dans le circuit secondaire du condenseur (échangeur) de la pompe à chaleur, afin que l'échange thermique reste optimal et que le fonctionnement de la pompe à chaleur soit satisfaisant. L'installation doit donc comporter un dispositif de régulation destiné à faire varier le débit d'eau circulant dans le condenseur. Compte tenu des débits d'eau traités, un tel dispositif de régulation a un fonctionnement relativement délicat et est coûteux. Très souvent, il est simplement remplacé par un simple dispositif manuel qui ne donne plus de fonction de régulation.To take account of this practical situation, pool heat pumps generally include a hydraulic bypass located upstream of the heat pump and to adjust the flow of water flowing in the secondary circuit of the condenser (exchanger) of the pump. to heat, so that the heat exchange remains optimal and that the operation of the heat pump is satisfactory. The installation must therefore include a regulating device intended to vary the flow of water circulating in the condenser. Given the treated water flow rates, such a control device has a relatively delicate operation and is expensive. Very often, it is simply replaced by a simple manual device that no longer gives regulation function.

Ainsi, ces pompes à chaleur connues posent des problèmes liés au moins en partie aux défauts de complexité, de coût et de sensibilité aux pannes indiqués précédemment en référence au document US-5 272 885 . Ces problèmes présentent une gêne sérieuse dans la cas des piscines dont les propriétaires n'ont pas de connaissances techniques sur le fonctionnement des pompes à chaleur en général.Thus, these known heat pumps pose problems related at least in part to the defects of complexity, cost and sensitivity to failures indicated above with reference to the document U.S. 5,272,885 . These problems present a serious inconvenience in the case of pools whose owners have no technical knowledge of the operation of heat pumps in general.

L'invention a pour objet de résoudre les problèmes posés, ou au moins d'en réduire l'acuité, par une simplification des pompes à chaleur de chauffage d'eau de piscine qui permet notamment une réduction de coût et de sensibilité aux pannes.The object of the invention is to solve the problems raised, or at least to reduce their acuity, by a simplification of the pool water heating heat pumps, which notably allows a reduction of cost and sensitivity to breakdowns.

Selon l'invention, le problème posé est résolu par une pompe à chaleur ayant les caractéristiques de la revendication 1.According to the invention, the problem is solved by a heat pump having the features of claim 1.

Plus précisément, selon l'invention, lorsque le débit d'eau est élevé et la température de l'eau est basse à l'entrée du circuit secondaire du condenseur, c'est-à-dire lorsque le circuit secondaire du condenseur a une grande aptitude à absorber les calories, la surface d'échange de chaleur du circuit primaire du condenseur est automatiquement réduite.More specifically, according to the invention, when the water flow is high and the water temperature is low at the inlet of the secondary circuit of the condenser, that is to say when the secondary circuit of the condenser has a great ability to absorb calories, the heat exchange surface of the primary circuit of the condenser is automatically reduced.

Inversement, lorsque le débit d'eau est réduit et l'eau a une température élevée à l'entrée du condenseur, et a donc une faible aptitude à absorber les calories, la surface d'échange de chaleur du circuit primaire de fluide frigorifique du condenseur est automatiquement augmentée.Conversely, when the flow of water is reduced and the water has a high temperature at the inlet of the condenser, and therefore has a low ability to absorb calories, the heat exchange surface of the primary circuit of the refrigerant of the condenser is automatically increased.

De cette manière, une même puissance calorifique pratiquement peut être transmise au circuit secondaire du condenseur, et le circuit primaire de la pompe à chaleur peut fonctionner avec un régime optimal de fonctionnement pression-température du fluide frigorifique.In this way, the same heating power can be practically transmitted to the secondary circuit of the condenser, and the primary circuit of the heat pump can operate with an optimum operating rate of pressure-temperature of the refrigerant.

Ce résultat est obtenu en pratique par utilisation d'un condenseur dont le circuit primaire comporte plusieurs circuits d'échange de chaleur qui sont mis en circuit au nombre d'un seul ou de plusieurs. Dans le condenseur, le circuit primaire de fluide frigorifique comporte toujours au moins un circuit d'échange de chaleur, et au moins un autre circuit d'échange de chaleur peut être mis en circuit par au moins un organe de commutation, sous la commande d'un organe de commande qui est relié à un capteur d'un paramètre de fonctionnement, tel que la pression de vapeur de fluide frigorifique entre le compresseur et le détendeur.This result is obtained in practice by using a condenser whose primary circuit comprises several heat exchange circuits which are switched into the number of one or more. In the condenser, the primary refrigerant circuit always comprises at least one heat exchange circuit, and at least one other heat exchange circuit can be switched on by at least one switching element, under the control of a controller which is connected to a sensor of a parameter of operation, such as the refrigerant vapor pressure between the compressor and the expander.

Ainsi, lorsque la pression mesurée augmente, le circuit primaire du détendeur est augmenté par mise en circuit de circuits d'échange de chaleur supplémentaires, et le fonctionnement est inverse lorsque la pression mesurée diminue.Thus, when the measured pressure increases, the primary circuit of the expander is increased by switching on additional heat exchange circuits, and the operation is reversed when the measured pressure decreases.

Plus précisément, l'invention concerne une pompe à chaleur destinée au chauffage de l'eau d'une piscine, du type qui comprend, dans un circuit primaire de fluide frigorifique, un compresseur, un condenseur constituant un échangeur de chaleur entre le fluide frigorifique et l'eau de piscine circulant dans un circuit secondaire, un détendeur, et un évaporateur constituant un échangeur de chaleur entre le milieu extérieur et le fluide frigorifique ; selon l'invention, le condenseur comporte au moins deux circuits d'échange de chaleur, et la pompe à chaleur comporte un capteur d'un paramètre du fonctionnement de la pompe à chaleur, au moins un organe de commutation de la circulation du fluide frigorifique entre un état de circulation dans un seul des circuits d'échange de chaleur et un état de circulation dans au moins deux des circuits d'échange de chaleur, et un organe de commande de l'organe de commutation au moins en fonction de la valeur du signal du capteur.More specifically, the invention relates to a heat pump for heating the water of a swimming pool, of the type which comprises, in a primary circuit of refrigerant, a compressor, a condenser constituting a heat exchanger between the refrigerant and the swimming pool water flowing in a secondary circuit, an expander, and an evaporator constituting a heat exchanger between the external medium and the refrigerant; according to the invention, the condenser comprises at least two heat exchange circuits, and the heat pump comprises a sensor of a parameter of the operation of the heat pump, at least one switching element for the circulation of the refrigerant between a state of circulation in only one of the heat exchange circuits and a state of circulation in at least two of the heat exchange circuits, and a control member of the switching member at least as a function of the value of the sensor signal.

De préférence, un organe de commutation au moins comporte au moins une vanne électromagnétique.Preferably, at least one switching member comprises at least one electromagnetic valve.

De préférence, le capteur d'un paramètre de fonctionnement de la pompe à chaleur détecte la pression du fluide frigorifique sur la partie à haute pression du circuit frigorifique, par exemple entre le compresseur et le condenseur.Preferably, the sensor of an operating parameter of the heat pump detects the pressure of the refrigerant on the high-pressure part of the refrigerant circuit, for example between the compressor and the condenser.

Dans un mode de réalisation, la pompe à chaleur comporte au moins deux circuits d'échange de chaleur qui sont disposés en série dans le condenseur. Elle peut alors comporter en outre une dérivation par rapport à l'un des circuits d'échange de chaleur.In one embodiment, the heat pump comprises at least two heat exchange circuits which are arranged in series in the condenser. It can then further comprise a branch with respect to one of the heat exchange circuits.

Dans un autre mode de réalisation, la pompe à chaleur comporte au moins deux circuits d'échange de chaleur disposés en parallèle dans le condenseur.In another embodiment, the heat pump comprises at least two heat exchange circuits arranged in parallel in the condenser.

L'invention concerne aussi un procédé de chauffage d'eau de piscine à l'aide d'une pompe à chaleur selon les paragraphes précédents, qui comprend la mesure d'un paramètre du fonctionnement de la pompe à chaleur, la comparaison de la valeur mesurée du paramètre à un seuil et, lorsque le paramètre dépasse un seuil, la commande de la commutation de la circulation du fluide frigorifique dans un circuit d'échange de chaleur.The invention also relates to a method of heating swimming pool water using a heat pump according to the preceding paragraphs, which comprises the measurement of a parameter of the operation of the heat pump, the comparison of the value measured parameter to a threshold and, when the parameter exceeds a threshold, the control of the switching of the circulation of the refrigerant in a heat exchange circuit.

De préférence, la comparaison à un seuil comprend l'utilisation de deux seuils différents selon que le paramètre croît ou décroît, afin que la commande soit assurée avec un effet d'hystérésis.Preferably, the comparison to a threshold comprises the use of two different thresholds depending on whether the parameter increases or decreases, so that the control is provided with a hysteresis effect.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'un exemple de réalisation, faite en référence aux dessins annexés sur lesquels :

  • la figure 1, déjà décrite, représente un schéma de pompe à chaleur utilisée pour le chauffage d'eau de piscine ;
  • les figures 2 et 3 représentent deux exemples de montage de circuits d'échange de chaleur du circuit primaire du condenseur de la pompe à chaleur ;
  • la figure 4 est un schéma d'un condenseur de pompe à chaleur selon l'invention ; et
  • la figure 5 est une vue en perspective avec des parties arrachées d'un exemple du condenseur schématiquement représenté sur la figure 4.
Other features and advantages of the invention will be better understood on reading the following description of an exemplary embodiment, with reference to the appended drawings in which:
  • the figure 1 , already described, represents a heat pump scheme used for heating swimming pool water;
  • the Figures 2 and 3 represent two examples of heat exchange circuitry assembly of the primary circuit of the condenser of the heat pump;
  • the figure 4 is a diagram of a heat pump condenser according to the invention; and
  • the figure 5 is a perspective view with torn parts of an example of the condenser schematically shown on the figure 4 .

Comme l'indique la figure 1, le compresseur 10 porte le fluide frigorifique, à l'état de vapeur, à une pression élevée, cette pression étant avantageusement mesurée par un capteur 18. Le fluide frigorifique à l'état de vapeur pénètre dans le condenseur 12 et circule dans une partie de circuit primaire 20.As the figure 1 , the compressor 10 carries the refrigerant, in the vapor state, at a high pressure, this pressure being advantageously measured by a sensor 18. The refrigerant in the vapor state enters the condenser 12 and circulates in a part primary circuit 20.

La partie de circuit primaire 20 du condenseur 12 peut comporter, selon l'invention, au moins deux circuits d'échange de chaleur 22, montés en série et dont l'un peut avoir une dérivation 24 qui est mise en circuit ou non par une vanne électromagnétique 26. Lorsque cette vanne 26 est ouverte, le fluide frigorifique circule en série dans les deux circuits d'échange de chaleur 22, par exemple deux serpentins, alors que, lorsque la vanne 26 alimente la dérivation 24, seul le second circuit 22 est alimenté.The primary circuit portion 20 of the condenser 12 may comprise, according to the invention, at least two heat exchange circuits 22, connected in series and one of which may have a bypass 24 which is switched on or off by a electromagnetic valve 26. When this valve 26 is open, the refrigerant circulates in series in the two heat exchange circuits 22, for example two coils, while when the valve 26 feeds the bypass 24, only the second circuit 22 is supplied.

La figure 3 représente une variante dans laquelle des circuits d'échange de chaleur 22 sont montés en parallèle et chaque circuit d'échange de chaleur, au-delà du premier, est mis en circuit ou non par commande d'une vanne électromagnétique associée 28.The figure 3 represents a variant in which heat exchange circuits 22 are connected in parallel and each heat exchange circuit, beyond the first, is switched on or off by control of an associated electromagnetic valve 28.

Bien entendu, le circuit en série de la figure 2, comme le circuit en parallèle de la figure 3, peuvent comporter un nombre plus élevé de circuits d'échange de chaleur, c'est-à-dire de serpentins, comme suggéré par les traits interrompus.Of course, the series circuit of the figure 2 , like the parallel circuit of the figure 3 may have a higher number of heat exchange circuits, i.e., coils, as suggested by the dashed lines.

En outre, il est possible de combiner des dispositifs en série et en parallèle tels qu'illustrés sur les figures 2 et 3.In addition, it is possible to combine serial and parallel devices as illustrated in the Figures 2 and 3 .

La caractéristique importante de l'invention est que, grâce aux vannes électromagnétiques 26, 28, la capacité d'échange de chaleur du circuit primaire 20 du condenseur 12 peut être modulée à plusieurs valeurs afin que la pompe à chaleur se trouve toujours dans ses conditions optimales de fonctionnement.The important characteristic of the invention is that, thanks to the electromagnetic valves 26, 28, the heat exchange capacity of the primary circuit 20 of the condenser 12 can be modulated to several values so that the heat pump is always in its conditions optimal operation.

La figure 4 représente un exemple de condenseur 12 selon l'invention. Dans cet exemple, l'eau pénètre par une entrée 30 jusqu'à proximité de l'extrémité opposée du condenseur 12 où elle rencontre le fond 31 d'un déflecteur 32 qui oblige l'eau à revenir du côté de son entrée, avant d'être déviée à nouveau par l'extrémité du corps extérieur 34 vers une sortie 36 d'eau.The figure 4 represents an example of condenser 12 according to the invention. In this example, the water enters through an inlet 30 to near the opposite end of the condenser 12 where it meets the bottom 31 of a deflector 32 which forces water to return to the side of its inlet, before be deflected again by the end of the outer body 34 to an outlet 36 of water.

Lorsqu'elle circule entre le conduit central et le déflecteur 32, l'eau s'écoule à la surface d'un serpentin 38 formant un premier circuit d'échange de chaleur 22. Lorsqu'elle circule entre le déflecteur 32 et la paroi externe du corps 34, l'eau s'écoule à la surface d'un autre serpentin 40 constituant un second circuit 22 d'échange de chaleur du circuit primaire.When it flows between the central duct and the deflector 32, the water flows to the surface of a coil 38 forming a first heat exchange circuit 22. When it flows between the deflector 32 and the outer wall of the body 34, the water flows to the surface of another coil 40 constituting a second heat exchange circuit 22 of the primary circuit.

Sur la figure 4, on n'a pas représenté les raccordements de conduits ni la vanne électromagnétique permettant le montage en série ou en parallèle des deux serpentins 38 et 40.On the figure 4 the duct connections and the solenoid valve for the series or parallel connection of the two coils 38 and 40 have not been shown.

La figure 5 représente une réalisation pratique du condenseur représenté sur la figure 4, avec les mêmes références numériques que sur celle-ci.The figure 5 represents a practical embodiment of the condenser shown in the figure 4 , with the same numerical references as on this one.

Bien qu'on ait indiqué que la modulation de la surface d'échange de chaleur du condenseur était assurée par mesure de la pression à la sortie du condenseur, il est possible de mesurer d'autres paramètres. En fait, il est en général souhaitable de surveiller d'une part la pression et d'autre part la température du fluide frigorifique, au moins à un emplacement du circuit primaire. Ce sont en effet ces deux paramètres qui sont les plus importants pour l'obtention du meilleur coefficient de performances de la pompe à chaleur. Le paramètre mesuré peut donc être toute combinaison de paramètres couramment utilisée à cet effet dans la technologie des pompes à chaleur.Although it has been indicated that the modulation of the heat exchange surface of the condenser is ensured by measuring the pressure at the outlet of the condenser, it is possible to measure other parameters. In fact, it is generally desirable to monitor on the one hand the pressure and on the other hand the temperature of the refrigerant, at least at a location of the primary circuit. It is indeed these two parameters that are the most important for obtaining the best coefficient of performance of the heat pump. The measured parameter can therefore be any combination of parameters commonly used for this purpose in heat pump technology.

Claims (8)

  1. A heat pump which is intended to heat the water of a swimming pool, of the type which comprises, in a primary circuit of refrigerating fluid:
    - a compressor (10),
    - a condenser (12) which constitutes a heat exchanger between the refrigerating fluid and the swimming pool water circulating in a secondary circuit,
    - a pressure reduction valve (14) and
    - an evaporator (16) which constitutes a heat exchanger between the external environment and the refrigerating fluid,
    the condenser (12) comprises at least two heat exchange circuits (22) and the heat pump comprises
    a sensor (18) for sensing a parameter of the operation of the heat pump,
    at least one member (26, 28) for commutating the circulation of the refrigerating fluid between a circulation state in only one of the heat exchange circuits (22) and a circulation state in at least two of the heat exchange circuits (22), and
    a member for controlling the commutation member at least in accordance with the value of the signal of the sensor (18),
    characterised in that the condenser (12) comprises
    a central conduit and a deflector (32), the water being introduced via an inlet (30) of the central conduit as far as a location near the opposite end of the condenser (12), where it strikes the bottom (31) of the deflector (32) which causes the water to return in the direction towards its inlet (30) and
    an external member (34), the water which is redirected by the deflector (32) again being redirected by an end of the external member (34) towards a water outlet (36),
    the two heat exchange circuits being formed by
    a first serpentine member (38) which is positioned between the central conduit and the external wall of the deflector (32) and a second serpentine member (40) which is positioned between the deflector (32) and the external wall of the external member (34), respectively, in such a manner that, when the water circulates between the central conduit and the deflector (32), the water circulates at the surface of the first serpentine member (38) and, when the water circulates between the deflector (32) and the external wall of the member (34), the water flows at the surface of the second serpentine member (40).
  2. Heat pump according to claim 1, characterised in that the commutation member at least comprises at least one electromagnetic valve (26, 28).
  3. Heat pump according to either claim 1 or claim 2, characterised in that the sensor (18) for sensing an operating parameter of the heat pump detects the pressure of the refrigerating fluid at the high-pressure portion of the refrigerating circuit.
  4. Heat pump according to any one of claims 1 to 3, characterised in that it comprises at least two heat exchange circuits (22) which are arranged in series in the condenser (12).
  5. Heat pump according to claim 4, characterised in that it further comprises a branch (24) in relation to one of the heat exchange circuits (22).
  6. Heat pump according to any one of claims 1 to 3, characterised in that it comprises at least two heat exchange circuits (22) which are arranged in parallel in the condenser (12).
  7. Method for heating swimming pool water by means of a heat pump according to any one of the preceding claims, characterised in that it comprises:
    measuring a parameter of the operation of the heat pump,
    comparing the measured value of the parameter with a threshold and,
    when the parameter exceeds a threshold, controlling the commutation of the circulation of the refrigerating fluid in a heat exchange circuit (22).
  8. Method according to claim 7, characterised in that the comparison with a threshold comprises the use of two different thresholds depending on whether the parameter increases or decreases so that control is ensured with a hysteresis effect.
EP06841814A 2005-11-28 2006-11-28 Heat pump for heating swimming pool water Active EP1957889B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0512028A FR2894017B1 (en) 2005-11-28 2005-11-28 HEAT PUMP FOR HEATING POOL WATER
PCT/FR2006/002601 WO2007060343A1 (en) 2005-11-28 2006-11-28 Heat pump for heating swimming pool water

Publications (2)

Publication Number Publication Date
EP1957889A1 EP1957889A1 (en) 2008-08-20
EP1957889B1 true EP1957889B1 (en) 2010-07-14

Family

ID=36123284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06841814A Active EP1957889B1 (en) 2005-11-28 2006-11-28 Heat pump for heating swimming pool water

Country Status (8)

Country Link
US (1) US20080296396A1 (en)
EP (1) EP1957889B1 (en)
CN (1) CN101371084B (en)
AT (1) ATE474194T1 (en)
DE (1) DE602006015515D1 (en)
ES (1) ES2351707T3 (en)
FR (1) FR2894017B1 (en)
WO (1) WO2007060343A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839547B (en) * 2009-12-26 2012-04-18 艾欧史密斯(中国)热水器有限公司 Heat pump water heater
US20130161404A1 (en) * 2010-08-09 2013-06-27 Zvi Shtilerman Apparatus and method for heating water
TWI500893B (en) * 2012-11-16 2015-09-21 Ind Tech Res Inst Heat pump air condition system and control method thereof
US9016074B2 (en) 2013-03-15 2015-04-28 Energy Recovery Systems Inc. Energy exchange system and method
US10260775B2 (en) 2013-03-15 2019-04-16 Green Matters Technologies Inc. Retrofit hot water system and method
US20140260380A1 (en) * 2013-03-15 2014-09-18 Energy Recovery Systems Inc. Compressor control for heat transfer system
US9234686B2 (en) 2013-03-15 2016-01-12 Energy Recovery Systems Inc. User control interface for heat transfer system
US10119738B2 (en) 2014-09-26 2018-11-06 Waterfurnace International Inc. Air conditioning system with vapor injection compressor
US9739392B2 (en) * 2014-10-07 2017-08-22 Haier Us Appliance Solutions, Inc. Damper valve and a heat pump water heater appliance
US10871314B2 (en) 2016-07-08 2020-12-22 Climate Master, Inc. Heat pump and water heater
US10866002B2 (en) 2016-11-09 2020-12-15 Climate Master, Inc. Hybrid heat pump with improved dehumidification
US10935260B2 (en) 2017-12-12 2021-03-02 Climate Master, Inc. Heat pump with dehumidification
CN108444074B (en) * 2018-03-05 2021-02-12 重庆美的通用制冷设备有限公司 Heating control method, device and system for heat recoverer in air conditioner
US11592215B2 (en) 2018-08-29 2023-02-28 Waterfurnace International, Inc. Integrated demand water heating using a capacity modulated heat pump with desuperheater
CA3081986A1 (en) 2019-07-15 2021-01-15 Climate Master, Inc. Air conditioning system with capacity control and controlled hot water generation
CN112378133B (en) * 2020-11-06 2022-03-15 佛山市顺德区一拓电气有限公司 Temperature control method of swimming pool and swimming pool equipment
CN115560374B (en) * 2022-12-05 2023-02-28 北京煦联得节能科技股份有限公司 Heating control method and system based on heat pump unit state data processing

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498072A (en) * 1968-08-09 1970-03-03 Rudy C Stiefel Air conditioning method
DE2161495A1 (en) * 1971-12-10 1973-06-20 Rhein Westfael Elect Werk Ag HEAT RECOVERY PLANT
US3926008A (en) * 1974-08-15 1975-12-16 Robert C Webber Building cooling and pool heating system
CH584388A5 (en) * 1974-10-16 1977-01-31 Escher Wyss Gmbh
DE7805394U1 (en) * 1978-02-23 1978-07-06 Costan Kuehlmoebel Gmbh, 5040 Bruehl CAPACITOR BATTERY
DE3034965C2 (en) * 1980-09-17 1983-05-05 Wieland-Werke Ag, 7900 Ulm Heat transfer device for heat pumps
JP3322684B2 (en) * 1992-03-16 2002-09-09 東芝キヤリア株式会社 Air conditioner
JP3140333B2 (en) * 1995-07-14 2001-03-05 株式会社クボタ Heat pump equipment
US5802864A (en) * 1997-04-01 1998-09-08 Peregrine Industries, Inc. Heat transfer system
US6327871B1 (en) * 2000-04-14 2001-12-11 Alexander P. Rafalovich Refrigerator with thermal storage
JP3737381B2 (en) * 2000-06-05 2006-01-18 株式会社デンソー Water heater
JP4180786B2 (en) * 2000-08-11 2008-11-12 株式会社鷺宮製作所 Electric switching valve and refrigeration cycle apparatus for refrigeration / refrigerator
US6418735B1 (en) * 2000-11-15 2002-07-16 Carrier Corporation High pressure regulation in transcritical vapor compression cycles
US6536221B2 (en) * 2001-01-16 2003-03-25 Norbert L. James Air conditioning heat recovery arrangement
CN2674364Y (en) * 2003-10-13 2005-01-26 仵崇哲 Air conditioner refrigerating system
US8312734B2 (en) * 2008-09-26 2012-11-20 Lewis Donald C Cascading air-source heat pump

Also Published As

Publication number Publication date
EP1957889A1 (en) 2008-08-20
CN101371084B (en) 2010-06-23
FR2894017A1 (en) 2007-06-01
ATE474194T1 (en) 2010-07-15
CN101371084A (en) 2009-02-18
US20080296396A1 (en) 2008-12-04
DE602006015515D1 (en) 2010-08-26
FR2894017B1 (en) 2008-02-15
ES2351707T3 (en) 2011-02-09
WO2007060343A1 (en) 2007-05-31

Similar Documents

Publication Publication Date Title
EP1957889B1 (en) Heat pump for heating swimming pool water
EP2021247B1 (en) Air conditioning unit and method
EP2933586B1 (en) A thermal conditioning device of a space
FR2785964A1 (en) RELAXATION MEMBER FOR AIR CONDITIONING SYSTEM, AND VALVE UNIT USED FOR THIS PURPOSE
FR2707374A3 (en) Air-conditioner with water cooling
EP3746316B1 (en) Method for controlling a system for heat treatment of a component of an electric traction chain of a vehicle
EP2720890A1 (en) Refrigerant circuit and method of controlling such a circuit
EP2444748B1 (en) Facility for producing domestic hot water for an apartment block including a common air-extractor fan
FR2876323A1 (en) Temperature regulation device for passenger compartment of motor vehicle, has loop including heat exchanger unit with two heat exchangers that are mounted in parallel and have valves mounted in anti-parallel manner to supply heat exchangers
EP2126308A1 (en) System and method for cooling the propulsion unit of an automobile
EP3658832B1 (en) Method for managing an air conditioning circuit of a motor vehicle
FR2957851A1 (en) Heating, ventilating and/or air-conditioning device for motor vehicle, has switching unit in position in which refrigerant is flown from compressor toward internal exchanger, accumulator, evaporator, external exchanger and compressor
FR2966563A1 (en) System for producing domestic hot water in apartment building, has air extraction network common to individual housings, in which individual air extraction networks open, where common network is provided with common air exhaust fan
EP1493979A1 (en) Car air-conditioner with a supercritical cycle
WO2012065972A1 (en) Air-conditioning loop provided with a solenoid valve and operating as a heat pump
FR2935781A1 (en) Coolant i.e. water, flow heating device controlling method for home, involves determining operating mode for coolant flow heating device based on comparison result of instantaneous heating power with power threshold
WO2001081109A1 (en) Device for regulating an air stream rate flowing under a motor vehicle hood
WO2009125090A1 (en) System and method for heating the hydraulic fluid of an aircraft
FR2913755A1 (en) Ventilation device for heat regulation system of e.g. dwelling, has turbine mounted in cylindrical case and comprising rotation shaft integrated to ventilation unit, where turbine is rotated by circulation of heat transfer fluid in case
FR3040739B1 (en) COOLING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR A MOTOR VEHICLE
FR2940410A1 (en) Refrigerating installation for cooling cold zone i.e. fresh product display, has control unit controlling passage of fluid through external or recovery condenser, and variable speed transmission mounted with compressor of negative circuit
EP3722703A1 (en) Thermodynamic machine such as a thermorefrigerating pump and operating method
FR2775339A1 (en) Compression type refrigerating system.
FR3012587A1 (en) THERMAL CONDITIONING CIRCUIT OF A COCKPIT
FR2913757A1 (en) DEVICE FOR COUPLING A HEAT PUMP HEATING SYSTEM TO A COOLING DEVICE

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

17P Request for examination filed

Effective date: 20080528

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20081107

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602006015515

Country of ref document: DE

Date of ref document: 20100826

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100714

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100714

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Effective date: 20110128

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101014

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101114

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101115

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

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101015

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

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

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

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

26N No opposition filed

Effective date: 20110415

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

Ref country code: MC

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

Effective date: 20101130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20101128

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602006015515

Country of ref document: DE

Effective date: 20110415

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

Ref country code: CH

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

Effective date: 20101130

Ref country code: LI

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

Effective date: 20101130

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

Ref country code: GB

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

Effective date: 20101128

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110115

Ref country code: LU

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

Effective date: 20101128

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100714

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20161129

Year of fee payment: 11

Ref country code: DE

Payment date: 20161128

Year of fee payment: 11

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

Ref country code: BE

Payment date: 20161128

Year of fee payment: 11

Ref country code: ES

Payment date: 20161128

Year of fee payment: 11

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

Effective date: 20161128

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

Effective date: 20161128

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

Ref country code: IT

Payment date: 20161125

Year of fee payment: 11

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20180206

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602006015515

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180731

Ref country code: BE

Ref legal event code: MM

Effective date: 20171130

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

Ref country code: DE

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

Effective date: 20180602

Ref country code: IT

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

Effective date: 20171128

Ref country code: FR

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

Effective date: 20171130

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20180206

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

Ref country code: BE

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

Effective date: 20171130

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: 20171129