EP1906111A1 - Pompe à chaleur fluide-eau réversible - Google Patents

Pompe à chaleur fluide-eau réversible Download PDF

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Publication number
EP1906111A1
EP1906111A1 EP07462007A EP07462007A EP1906111A1 EP 1906111 A1 EP1906111 A1 EP 1906111A1 EP 07462007 A EP07462007 A EP 07462007A EP 07462007 A EP07462007 A EP 07462007A EP 1906111 A1 EP1906111 A1 EP 1906111A1
Authority
EP
European Patent Office
Prior art keywords
cycle
fluid
valve
coolant
heat pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07462007A
Other languages
German (de)
English (en)
Inventor
Zoltàn Fodor
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.)
Geowatt Ipari-Szolgaltato Es Kereskedelmi Kft
Original Assignee
Geowatt Ipari-Szolgaltato Es Kereskedelmi Kft
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 Geowatt Ipari-Szolgaltato Es Kereskedelmi Kft filed Critical Geowatt Ipari-Szolgaltato Es Kereskedelmi Kft
Publication of EP1906111A1 publication Critical patent/EP1906111A1/fr
Withdrawn legal-status Critical Current

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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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers

Definitions

  • the present invention relates to a reversible fluid-water heat pump, the cycle of which contains an evaporator, a compressor, an accumulator, a condenser and a fluid collector.
  • geothermal power utilizes the decay heat of the radioactive elements, a renewable source under the Earth's crust;.
  • the geothermal power of the Earth is fiftythousand larger than the present fossil energy sources.
  • the geothermal power can be used for heating, agricultural production and - to an increasing degree - for the utilization of heat pumps.
  • US 2005086969 A and US 2005086970 describe reversible heat pumps (so called split climate systems). To make the cooling cycle reversible two economizer and two expansion valves or a four-channel-valve are used by these - mainly used overseas - setups
  • the object of the present invention is to elaborate a geothermal heat pump that - with special regard to the Hungarian geothermal environment- has higher COP value and cooling temperature (60 °C).
  • the cycle of the reversible fluid-water heat pump according to the invention contains an evaporator, a compressor, an accumulator, a condenser, a fluid collector, and - according to the invention - a tabular steam generator heat exchanger which is connected to the cycle by an expansion valve, a magnetic valve and non-return valves,.
  • the expansion valve is a practically modulated electronic expansion valve. Two of the non-return valves is inserted into the steam cycle and the other two into the fluid cycle of the main cycle.
  • the heat pump is a reversible cycled, optimized setup especially built up with the use of a special steam injection compressor and designed for geothermal utilization,.
  • the setup can be used both in heating and active cooling mode, and it is more efficient than the previous models due to its compressor, and the inner reversible steam cycle developed thereof.
  • the power improvement is generated by increasing the enthalpy of the system, first of all contrary to the power improvement by increasing the mass flow.
  • the apparatus shown in Fig. 1. contains a compressor 1, a condenser 2, an evaporator 3, a DHW (domestic hot water) heat exchanger 5, a reverse valve 6, an accumulator 7 and a fluid collector holder 8.
  • a compressor 1 a condenser 2, an evaporator 3, a DHW (domestic hot water) heat exchanger 5, a reverse valve 6, an accumulator 7 and a fluid collector holder 8.
  • a compressor 1 contains a compressor 1, a condenser 2, an evaporator 3, a DHW (domestic hot water) heat exchanger 5, a reverse valve 6, an accumulator 7 and a fluid collector holder 8.
  • DHW domestic hot water
  • the gas coolant coming out of the compressor 1 with high enthalpy passes through the DHW heat exchanger 5, where it takes off the overheating heat that is transported by the circulation pump to the DHW holder 19, that is not shown in the figure.
  • the coolant having condensation temperature gets into the condenser through the four-channel reverse valve 6. There the heat is transmitted to the heating medium, therefore the phase of the coolant transforms to fluid, but its temperature remains on condensation level.
  • the coolant gets to a thermostatic expansion valve 9 through the non-return valve of the coolant, the fluid storage tank 8 and a filter 21.
  • the expansion valve 9 indicates such a great pressure loss (the drop of the temperature) so that is enables the evaporator 3 to uptake heat from the heat gaining side.
  • the fluid coolant flows through the non-return valve and the thermostatic expansion valve 9 to the evaporator.
  • the block pattern in Fig. 2. shows the heat pump of the invention.
  • the heat pump is made of similar elements as the traditional solution shown in Fig. 1., but here the compressor 1 is made with a connection capable for steam injection and the setup is expanded by an intermediary cooling cycle consisting of a steam cycle A and a fluid cycle B, which contains a four steam generating condenser.
  • the gas-phase coolant gets into the DHW heat exchanger 5.
  • the DHW heat exchanger 5 is dimensioned to use overheating heat of the cycle, so it distracts as much heat from the gas-phase coolant as to gain the planned condensation temperature after the heat exchanger.
  • the distracted heat gets into the DHW tank with the help of DHW circulation pump 19.
  • the gas-phase coolant having increased enthalpy gets into the four-channel reverse valve 6.
  • the state of the reverse valve 6 is adjusted by the built-in automatic regulator. If the reverse valve 6 is in heating state, the gas-phase coolant having increased enthalpy gets into the condenser 2. In the condenser 2 the coolant gives the heat to the heating water, while its phase transforms into fluid, but its temperature remains on condensation level.
  • the expansion valve 10 is a modulated electronic valve, which helps to keep the overheating rate in a lower value compared to the traditional thermostatic expansion valves, because their deflection is raised by the time dependent vaporization temperature of the heat pumps and causes significant efficiency drop.
  • the modulated electronic expansion valve 10 is adjusted by a microprocessor controlled automation system 20.
  • the reduced pressured and temperatured coolant takes heat from the higher pressured and temeperatured coolant of the primer side and. meanwhile it transforms into steam phase.
  • the expansion valve 10 assures an overheating of 5 °C so as to inhibit the fluid to get into the compressor 1.
  • the steam-phase coolant having increased enthalpy gets into the compressor 1 through the manufactured steam wad.
  • the coolant passing the steam generator's 4 primer side is post-chilled.
  • the post-chilled fluid-phase coolant goes through the filter 21, the glass eyehole 22, a modulated electronic expansion valve 9 and a non-return valve 15 and finally gets into the evaporator 3.
  • the high pressure of the non-return valve's 16 on the closing side ensures that the gas can only go to the direction of the evaporator.
  • the 9 modulated electronic expansion valve ensures that the coolant gets to lower temperature compared to the primer (heat gaining) side of the evaporator 3.
  • the low pressured and temperatured fluid-phase coolant on the secondary side of the evaporator 3 gains heat from the primer side and transforms into gas phase in the meantime.
  • the modulated electronic expansion valve 9 also ensures an overheating of 5 °C as an assurance that the whole coolant that leaves the evaporator 3 is in steam phase.
  • the gas-phase coolant having increased enthalpy by the compressor 1 gets into the DHW heat exchanger (desuperheater) 5.
  • the distracted heat gets into the DHW tank with the help of the DHW circulation valve 19.
  • the gas-phase coolant having increased enthalpy gets into the condenser 2. In there the coolant gives its heat to the heating water. In the meantime it transforms into fluid phase keeping its temperature at the condensation temperature level.
  • the steam-phase coolant having increased enthalpy gets into the compressor 1 through the steam wad.
  • the post-chilling of the coolant occurs.
  • the post-chilled fluid-phase coolant gets through the filter 21, the glass eyehole 22, the modulated electronic expansion valve 9 and the non-return valve 15 and gets to the evaporator 2.
  • the high pressure on the closing side of the non-return valve 16 ensures that the gas can only flow to the direction of the evaporator.
  • the basic advantage of the heat pump described in the invention is the better power compared to the already known solutions which can be primarily achieved by increasing the enthalpy in the system without increasing the piston displacement. Also the value of the COP of the system also increases, due to the fact that the increase of the transmitted power is higher than the increase of the power gained by the compressor.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
EP07462007A 2006-09-20 2007-09-14 Pompe à chaleur fluide-eau réversible Withdrawn EP1906111A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU20060600213U HU3281U (en) 2006-09-20 2006-09-20 Reversible fluid-water heat pump

Publications (1)

Publication Number Publication Date
EP1906111A1 true EP1906111A1 (fr) 2008-04-02

Family

ID=37441140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07462007A Withdrawn EP1906111A1 (fr) 2006-09-20 2007-09-14 Pompe à chaleur fluide-eau réversible

Country Status (2)

Country Link
EP (1) EP1906111A1 (fr)
HU (1) HU3281U (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871706A (zh) * 2010-06-02 2010-10-27 广东长菱空调冷气机制造有限公司 相变蓄能热泵热水器
CN102798214A (zh) * 2012-07-27 2012-11-28 太原理工大学 一种相变蓄热空气源热泵热水机组
EP3184936A1 (fr) * 2015-12-23 2017-06-28 EKOMATIC Spolka Cywilna Système de pompe à chaleur géothermique doté d'une fonction de refroidissement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716393A1 (de) * 1986-05-15 1987-11-19 Copeland Corp Kaelteanlage
DE4220919A1 (de) * 1991-06-27 1993-01-07 Carrier Corp Kuehlanlage fuer den guetertransport
DE4127754A1 (de) * 1991-08-22 1993-02-25 Bitzer Kuehlmaschinenbau Gmbh Zwischenkuehlung
EP0710807A2 (fr) * 1994-11-07 1996-05-08 SEP GESELLSCHAFT FÜR TECHNISCHE STUDIEN ENTWICKLUNG PLANUNG mbH Machine frigorifique à compresseur
DE19702097A1 (de) * 1996-01-23 1997-07-24 Nippon Soken Kühlsystem
US20050086970A1 (en) * 2003-10-24 2005-04-28 Alexander Lifson Combined expansion device and four-way reversing valve in economized heat pumps
US20050086969A1 (en) * 2003-10-24 2005-04-28 Alexander Lifson Dual economizer heat exchangers for heat pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716393A1 (de) * 1986-05-15 1987-11-19 Copeland Corp Kaelteanlage
DE4220919A1 (de) * 1991-06-27 1993-01-07 Carrier Corp Kuehlanlage fuer den guetertransport
DE4127754A1 (de) * 1991-08-22 1993-02-25 Bitzer Kuehlmaschinenbau Gmbh Zwischenkuehlung
EP0710807A2 (fr) * 1994-11-07 1996-05-08 SEP GESELLSCHAFT FÜR TECHNISCHE STUDIEN ENTWICKLUNG PLANUNG mbH Machine frigorifique à compresseur
DE19702097A1 (de) * 1996-01-23 1997-07-24 Nippon Soken Kühlsystem
US20050086970A1 (en) * 2003-10-24 2005-04-28 Alexander Lifson Combined expansion device and four-way reversing valve in economized heat pumps
US20050086969A1 (en) * 2003-10-24 2005-04-28 Alexander Lifson Dual economizer heat exchangers for heat pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871706A (zh) * 2010-06-02 2010-10-27 广东长菱空调冷气机制造有限公司 相变蓄能热泵热水器
CN102798214A (zh) * 2012-07-27 2012-11-28 太原理工大学 一种相变蓄热空气源热泵热水机组
CN102798214B (zh) * 2012-07-27 2015-04-08 太原理工大学 一种相变蓄热空气源热泵热水机组
EP3184936A1 (fr) * 2015-12-23 2017-06-28 EKOMATIC Spolka Cywilna Système de pompe à chaleur géothermique doté d'une fonction de refroidissement

Also Published As

Publication number Publication date
HU3281U (en) 2007-05-29
HU0600213V0 (en) 2006-11-28

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