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WO2011064564A2 - Armoire de pompe à chaleur - Google Patents

Armoire de pompe à chaleur Download PDF

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Publication number
WO2011064564A2
WO2011064564A2 PCT/GB2010/051863 GB2010051863W WO2011064564A2 WO 2011064564 A2 WO2011064564 A2 WO 2011064564A2 GB 2010051863 W GB2010051863 W GB 2010051863W WO 2011064564 A2 WO2011064564 A2 WO 2011064564A2
Authority
WO
WIPO (PCT)
Prior art keywords
heat pump
air
heat exchanger
heat
cabinet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2010/051863
Other languages
English (en)
Other versions
WO2011064564A3 (fr
Inventor
Gary Stanton Webster
Jeremy James Stanley
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.)
Smiths Environmental Products Ltd
Original Assignee
Smiths Environmental Products Ltd
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 Smiths Environmental Products Ltd filed Critical Smiths Environmental Products Ltd
Priority to EP10796107A priority Critical patent/EP2504629A2/fr
Publication of WO2011064564A2 publication Critical patent/WO2011064564A2/fr
Publication of WO2011064564A3 publication Critical patent/WO2011064564A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
    • 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
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/12—Hot-air central heating systems; Exhaust gas central heating systems using heat pumps
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/02—Hot-air central heating systems; Exhaust gas central heating systems operating with discharge of hot air into the space or area to be heated
    • F24D5/04—Hot-air central heating systems; Exhaust gas central heating systems operating with discharge of hot air into the space or area to be heated with return of the air or the air-heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/001—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H6/00—Combined water and air heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/02—System or Device comprising a heat pump as a subsystem, e.g. combined with humidification/dehumidification, heating, natural energy or with hybrid system
    • 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]
    • Y02B30/13—Hot air central heating systems using heat pumps

Definitions

  • This invention relates to a heat pump cabinet, and to a heating installation incorporating such a heat pump cabinet, for providing heating and hot water to a building.
  • the present invention seeks to address the above issues by providing an energy efficient, fossil fuel free, domestic heating system designed specifically for use in small houses or apartments, which will be well within the financial reach of the average consumer. Because the present invention has been designed specifically for use in small houses or apartments, significant cost savings can be achieved by providing an integrated system which combines the heat source and the distribution means together "in one box", avoiding the need for multiple heat emitters such as radiators or electrically operated convector heaters to be installed around the house. It is envisaged that the purchasing cost of the domestic heating system of the present invention will be recovered through the cost savings attributable to increased energy efficiency well before the end of the system's life cycle.
  • the present invention further seeks to provide a heating installation which is also capable of operating in reverse mode so as to provide a cooling function, as required, to a dwelling in which it is installed.
  • a yet further aim of the present invention is to provide an unobtrusive heating installation meeting which will be quiet to operate and which may be at least partially recessed within the structure of the building in which it is installed.
  • a heat pump cabinet comprising:
  • thermoelectric heating system located in the lower housing section, said heat pump being adapted to provide heated water to a domestic hot water system and to provide heated air to a forced-air convection heating system ;
  • - fluid connectors adapted to transfer heated water from said heat pump to a hot water coil of an indirect domestic water storage tank, and to return cooled water from said coil to the heat pump;
  • an electrically driven fan located in the upper housing section and adapted to drive or draw heated air through said plenum ;
  • one or more spigot connectors adapted to transfer heated air from the plenum to one or more ducts of a forced-air convection heating system.
  • the heat pump cabinet of the present invention thus combines the heat source, in the form of the heat pump, and the distribution means, in the form of the electrically driven fan, together in a single integrated unit. This enables significant savings to be made both in terms of cost and the space occupied by the heating system, thus making it ideal for installation in small houses and apartments.
  • a heat pump in its simplest form comprises a closed circuit around which a refrigerant fluid is circulated.
  • the circuit includes an electrically operated compressor which pressurises the fluid, in its gaseous form, thus causing the refrigerant gas to heat up.
  • the hot pressurised gas is then circulated through a condenser, within which it condenses to a liquid, though still under high pressure. This causes the condenser itself to generate heat, which may then be dissipated to its surroundings.
  • the high pressure liquid refrigerant is circulated to an expansion valve, which has the effect of lowering the pressure of the liquid refrigerant so as to promote evaporation.
  • the low pressure liquid refrigerant is then circulated to an evaporator, where it evaporates into a gas, absorbing heat from the evaporator's surroundings as it does so.
  • the gaseous refrigerant then returns to the compressor, and the cycle repeats.
  • both of these components may be termed a "heat exchanger", and this term will be used herein. It should be understood that, for heat pump systems adapted to operate interchangeably between "normal” and “reverse” modes so as to provide both heating and cooling functions, the same component may operate interchangeably as both an evaporator and a condenser.
  • the components of the integral heat pump housed within the heat pump cabinet can be taken to comprise one or more heat exchangers (whether operating as evaporators or condensers), and the expansion valve. It is intended however that the compressor should be located externally of the building in which the heat pump cabinet is installed, in order to keep the noise level generated by the heat pump to a minimum, within the building.
  • At least one heat exchanger - usually configured to operate as an evaporator in order to absorb heat from the surroundings - is also required to be located externally of the building, or at least to be in communication with ambient air from outside the building (assuming the heat pump is an air source heat pump).
  • the heat pump preferably comprises a first heat exchanger adapted to provide heated water for the domestic hot water system, and a second heat exchanger adapted to provide heated air for the forced-air convection heating system.
  • first heat exchanger will be configured always to operate as a condenser in order to supply heat to the domestic hot water system.
  • the second heat exchanger will be configured normally to operate as a condenser in order to supply heat to the forced-air convection heating system.
  • the second heat exchanger will be configured to operate interchangeably as a condenser - as described above - and in "reverse" mode as an evaporator in order to provide cool air to the forced-air convection system.
  • the first heat exchanger is preferably located in the lower housing section, with the fluid connectors being adapted to transfer heated water from said first heat exchanger to a hot water coil of an indirect domestic water storage tank, and to return cooled water from said coil to the first heat exchanger.
  • the second heat exchanger is preferably located in the upper housing section, with the electrically driven fan being arranged to drive or draw air over said second heat exchanger, thereby to heat the air.
  • the second heat exchanger is preferably located substantially within the plenum. Most preferably, the second heat exchanger is located substantially at the top of the plenum, and the electrically driven fan is located at or adjacent the base of the plenum and is arranged to drive air over the second heat exchanger, thereby to heat the air.
  • the second heat exchanger is adapted also to operate in reverse mode - i.e. as an evaporator - thereby to enable cool air to be driven or drawn through the plenum, such that the forced-air convection system can be used to supply cool air to a building in which the heat pump cabinet is installed.
  • the heat pump may be adapted such that the first heat exchanger operates as a condenser and the second heat exchanger effectively operates as an evaporator in the same refrigeration circuit, such that heat recovered from the air in the plenum is transferred to the domestic hot water system.
  • the heat pump cabinet according to the present invention preferably has a width and/or depth of less than 350mm (14 inches). This dimension is the standard spacing between upright studwork members in internal wall construction in the UK housing industry. As such, this enables the heat pump cabinet to be at least partially recessed within an internal wall of the apartment or small house in which it is installed, thus providing a further space-saving benefit.
  • the heat pump is preferably an air source heat pump.
  • the heat pump may alternatively be a ground source heat pump - which are generally more efficient at delivering recovered energy to a building - however, these tend to be more expensive than air source heat pumps and therefore do not lend themselves so well to meeting the aims of the present invention.
  • the air source heat pumps preferred for use in the present invention are designed to operate at a co-efficient of performance (COP) of approximately 3:1 . This means that for approximately every unit of energy consumed (from the mains electricity supply required to operate the heat pump), the heat pump will deliver 3 units of energy to the building in the form of heat. This level of performance can be maintained even when the ambient temperature is as low as 5°C - the temperature of an average winter's day in the UK.
  • COP co-efficient of performance
  • a heating installation comprising:
  • the compressor associated with the heat pump is located externally of the building in which the heating installation is installed. This serves to maintain noise levels within the building at a low level, enabling the heat pump cabinet to operate quietly.
  • at least one heat exchanger associated with the heat pump - normally configured to operate as an evaporator - will also necessarily be located externally of the building, or at least be in communication with ambient air from outside the building (assuming the heat pump is an air source heat pump).
  • the heating installation preferably further comprises one or more specially designed steel noggings having apertures therein adapted to receive said one or more air ducts.
  • Each nogging is adapted to fit between standard 350mm (14 inch) spaced upright studwork members in an internal stud wall.
  • Figure 1 is a front, cross-sectional view of a heat pump cabinet according to the first aspect of the present invention
  • Figure 2 is a side cross-sectional view of the upper section of the heat pump cabinet of Figure 1 ;
  • Figure 3 is an illustrative representation of a heating installation according to the second aspect of the present invention, incorporating the heat pump cabinet of Figure 1 .
  • FIG. 1 there is shown a heat pump cabinet 10, according to a first aspect of the present invention.
  • the cabinet 10 has a housing 1 1 , divided into an upper section 12 and a lower section 13.
  • the lower section 13 houses an integral air source heat pump 14 having a first heat exchanger 15 and a second heat exchanger 16 associated therewith - the second heat exchanger 16 being housed in the upper section 12 of the housing 1 1 .
  • the first and second heat exchangers 15, 16 are each normally configured to operate as condensers, so as to supply heat, respectively, to a domestic hot water system 31 and a forced-air convection system 32, as will be described in more detail below with reference to Figure 3.
  • the evaporation part of the refrigeration cycle is performed by a further heat exchanger 17 which is configured normally to operate as an evaporator.
  • the further heat exchanger 17 must be in communication with ambient air located externally of the building in which the heat pump cabinet 10 is installed, in order to recover heat therefrom, though the heat exchanger 17 itself need not necessarily be located externally of the building.
  • the further heat exchanger 17 of the preferred embodiment is provided with fluid connectors 18 either to deliver ambient air directly to the heat exchanger 17, or more practically to deliver an intermediary fluid such as water - which will be in thermal communication with the ambient air externally of the building.
  • a compressor associated with the heat pump 14 is also located externally of the building.
  • the first heat exchanger 15 is also provided with fluid connectors 19, adapted to deliver heated water from said first heat exchanger 15 to the domestic hot water system 31 of the building in which the heat pump cabinet is installed, as will again be described in more detail below with reference to Figure 3.
  • the upper section 12 of the housing 1 1 houses a plenum 21 , at the base of which is located an electrically driven fan 22, and in the upper part of which is located the second heat exchanger 16.
  • the fan 22 is adapted to draw in air from the room in which the heat pump cabinet 10 is located, and drive it into and through the plenum 21 .
  • the heated air exits the heat pump cabinet 10 via spigot connectors 23, from where it enters the forced-air convection system 32, as will be again described in more detail below with reference to Figure 3.
  • the heat pump 10 is provided with control means 24, adapted to switch the operation of the second heat exchanger 16 between "normal” and “reverse” modes - that is, to switch the operation of the second heat exchanger 16 between condenser and evaporator - depending on whether the user requires the forced-air convection system 32 to supply heated or cooled air. Operation of the control means 24 may also be regulated thermostatically.
  • the control means 24 may be adapted to configure the heat pump 14 such that the first and second heat exchangers 15, 16 operate, respectively, as condenser and evaporator in the same refrigeration circuit. This enables heat recovered by the second heat exchanger 16 from air in the plenum 21 to be supplied, via the first heat exchanger 15 to the domestic hot water system 31 .
  • the control means 24 may be adapted to configure the heat pump 14 such that the further heat exchanger 17 also operates in reverse mode - i.e. as a condenser.
  • FIG. 3 there is shown a heating installation, generally indicated 30, according to a second aspect of the present invention, and incorporating the heat pump cabinet 10 of the first aspect, as described above with reference to Figures 1 and 2.
  • the heat pump cabinet 10 is connected to a domestic hot water system, generally indicated 31 , and a forced- air convection heating and cooling system, generally indicated 32.
  • Connection to the domestic hot water system 31 is effected via the fluid connectors 19 for the first heat exchanger 15, to which are connected flow and return pipes, 33, 34 for a hot water coil 35 of an indirect domestic water storage tank 36.
  • Hot water pipes 37 then draw off hot water from the storage tank 36 for domestic hot water appliances (taps, shower, bath etc.) 38 as required.
  • the heat pump cabinet 10 is shown in Figure 3 installed in a building and partially recessed between two adjacent upright studwork members 39 of an internal stud wall. Connection to the forced-air convection system 32 is effected via the spigot connectors 23 at the top of the plenum 21 , to each of which is connected a length of flexible air duct tubing 41 , adapted to pass up between the studwork members 39 into a ceiling void 42 above a suspended ceiling 43.
  • a special steel nogging 44 is provided (also shown in plan view in Figure 3 for illustrative purposes), having apertures 45 formed therein to receive the flexible tubing 41 .
  • the nogging 44 is adapted to fit between the adjacent studwork members 39.
  • Each length of flexible tubing 41 terminates at a ceiling vent 45, and is provided with a diffuser nozzle 46, through which the heated or cooled air generated in the plenum 21 is delivered to the building, as indicated by arrows a.
  • the further heat exchanger 17 of the heat pump 14 is required to be in fluid communication with ambient air located externally of the building. As can be seen in Figure 3, this is achieved by means of a radiator unit 47 which is in fluid communication with the further heat exchanger 17 via fluid connectors 18.
  • a fan 48 is provided to drive ambient air over the water-filled pipes of the radiator unit 47 so as to transfer heat from the ambient air to the further heat exchanger 17.
  • the compressor for the heat pump 14 is also located externally of the building in order to reduce noise levels within the building, and may conveniently be housed within the radiator unit 47.

Landscapes

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

Abstract

L'invention concerne une armoire de pompe à chaleur (10) comprenant une pompe à chaleur (14) et un carter (11) divisé en une partie supérieure (12) et une partie inférieure (13). La pompe à chaleur (14) est placée dans la partie de carter inférieure (13), et est conçue pour fournir de l'eau chauffée à un système d'eau chaude domestique (31) et pour fournir de l'air chauffé à un système de chauffage par convection et air forcé (32). Des connecteurs fluidiques (1) transfèrent l'eau chauffée de la pompe à chaleur (14) vers un serpentin d'eau chaude (35) d'un réservoir indirect de stockage d'eau domestique (36) et retournent l'eau refroidie dudit serpentin (35) vers la pompe à chaleur (14). La partie de carter supérieure (12) comprend un plénum (21) et un ventilateur électrique (22) configuré pour pousser ou aspirer l'air chauffé à travers ledit plénum. Un ou plusieurs connecteurs à ergot (23) servent à transférer l'air chauffé du plénum (21) vers un ou plusieurs tuyaux (41) du système de chauffage par convection et air forcé (32).
PCT/GB2010/051863 2009-11-26 2010-11-09 Armoire de pompe à chaleur Ceased WO2011064564A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10796107A EP2504629A2 (fr) 2009-11-26 2010-11-09 Armoire de pompe à chaleur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0920673.1 2009-11-26
GB0920673A GB2475693A (en) 2009-11-26 2009-11-26 A heat pump cabinet especially for use with small domestic houses or apartments

Publications (2)

Publication Number Publication Date
WO2011064564A2 true WO2011064564A2 (fr) 2011-06-03
WO2011064564A3 WO2011064564A3 (fr) 2012-01-05

Family

ID=41572685

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/051863 Ceased WO2011064564A2 (fr) 2009-11-26 2010-11-09 Armoire de pompe à chaleur

Country Status (3)

Country Link
EP (1) EP2504629A2 (fr)
GB (1) GB2475693A (fr)
WO (1) WO2011064564A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9206995B2 (en) * 2011-07-07 2015-12-08 General Electric Company Hybrid electric water heater with external discharge ducting
ITTV20120108A1 (it) * 2012-06-05 2013-12-06 Clivet S P A Unita' per il condizionamento ambientale per uso residenziale
GB2549802A (en) * 2016-04-29 2017-11-01 Smith's Env Products Ltd Concealed plinth heater
CN108917064A (zh) * 2018-08-21 2018-11-30 山东荣安电子科技有限公司 酒店式无室外机制冷系统
IT202300000711U1 (it) * 2023-02-23 2024-08-23 Innova S R L Sistema di riscaldamento a pompa di calore per installazione interna

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751761A (en) * 1951-10-15 1956-06-26 Whirlpool Seeger Corp Combination heat pump and water heater
US4380156A (en) * 1979-06-04 1983-04-19 Atlantic Richfield Company Multiple source heat pump
US4391104A (en) * 1982-01-15 1983-07-05 The Trane Company Cascade heat pump for heating water and for cooling or heating a comfort zone
US4747273A (en) * 1987-03-05 1988-05-31 Artesian Building Systems Heating and cooling system
SE464667B (sv) * 1988-08-22 1991-05-27 Thermia Ab Vaermepumpanlaeggning foer uppvaermning eller kylning av utrymmen samt uppvaermning av tappvarmvatten
EP0676594A3 (fr) * 1994-04-08 1996-05-15 Raoul Miserez Installation de chauffage de bâtiment avec pompes à chaleur.
FI20075595A0 (fi) * 2007-06-27 2007-08-30 Enervent Oy Ab Ilmanvaihtokojeyksikkö

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
EP2504629A2 (fr) 2012-10-03
GB0920673D0 (en) 2010-01-13
GB2475693A (en) 2011-06-01
WO2011064564A3 (fr) 2012-01-05

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