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1
EP3299731B1
Publication/Patent Number: EP3299731B1
Publication date: 2019-01-30
Application number: 16799937.4
Filing date: 2016-05-20
Abstract: Provided is a temperature-adjusting fluid supply apparatus that causes a fluid for temperature adjustment to be circulated between a heat exchanger that transfers heat supplied from a refrigerant to the fluid, and an object to be adjusted for temperature that uses the heat of the fluid, the temperature-adjusting fluid supply apparatus being able to prevent the fluid from freezing. A temperature-adjusting fluid supply apparatus (100) is provided with a heat exchanger (20) that transfers heat supplied from a refrigerant to a fluid for temperature adjustment, a supply tube (32) through which the fluid flows from the heat exchanger toward an object to be adjusted for temperature, a return tube (42) through which the fluid returning from the object to be adjusted for temperature flows, a flow rate adjustable pump (50), a flow sensor (60), a flow switch (70), a temperature sensor (80), and a control part (90). The flow switch, in comparison with the flow sensor, is able to detect flow rate changes with coarser precision, and is less affected in detection accuracy by viscosity changes in the fluid. On the basis of the temperature of the fluid detected by the temperature sensor, the control part switches between pump control based on the detection results of the flow sensor and pump control based on the detection results of the flow switch. Provided is a temperature-adjusting fluid supply apparatus that causes a fluid for temperature adjustment to be circulated between a heat exchanger that transfers heat supplied from a refrigerant to the fluid, and an object to be adjusted for temperature that uses the heat of ...more ...less
2
EP2620711B1
Publication/Patent Number: EP2620711B1
Publication date: 2019-03-20
Application number: 12178766.7
Filing date: 2012-08-01
Inventor: Ushijima, Takahiro  
Abstract: A heat source unit control system prevents a heat-pump heat source from operating at a maximum outlet temperature of heated water, which is caused by an unnecessarily high temperature of circulating water. A return-water temperature sensor S(in) detects a temperature Tm(in) of circulating water which flows through a forward channel 610 in a circulation circuit 600 to return back to a heat-pump heat source 100. A tank-water temperature sensor S(t) detects a temperature Tt of water stored in a hot water storage tank 200. A controller 500 controls the operating frequency of a compressor installed in the heat-pump heat source 100 so that Tm(in) - Tt = ΔTb, where Tm(in) - Tt denotes a temperature difference between the temperature Tm(in) of the circulating water detected by the return-water temperature sensor S(in) and the temperature Tt of the water in the tank detected by the tank-water temperature sensor S(t), and ΔTb denotes a set value. A heat source unit control system prevents a heat-pump heat source from operating at a maximum outlet temperature of heated water, which is caused by an unnecessarily high temperature of circulating water. A return-water temperature sensor S(in) detects a temperature Tm(in) of ...more ...less
3
EP3064871B1
Publication/Patent Number: EP3064871B1
Publication date: 2019-04-03
Application number: 14859045.8
Filing date: 2014-09-26
Abstract: The present invention relates to a ground source heat pump integrated controller and the method of achieving the same. The ground source heat pump integrated controller of the present invention comprises a main module that has pre-integrated multiple main machines, pumps and valves according to the rated load of the main module and a number of extended modules that have pre-integrated multiple main machines, pumps and valves according to the rated load of the extended modules, said main module and extended modules both being provided with a plurality of analog contacts and digital contacts, and said extended modules being connected, via the analog and digital contacts, to the main module according to the load of the ground source heat pump system. The advantage of the present invention lies in that after system load is calculated according to floor area, multiple extended modules are connected to one main module, which increases the capacity of the main module and thus meets the requirement of system load. The ground source heat pump integrated controller directly connects the pre-integrated main module to the pre-integrated extended modules, which does not require additional programming and thus achieves better scalability and flexibility. The present invention relates to a ground source heat pump integrated controller and the method of achieving the same. The ground source heat pump integrated controller of the present invention comprises a main module that has pre-integrated multiple main machines, pumps and ...more ...less
4
EP3149244B1
Publication/Patent Number: EP3149244B1
Publication date: 2019-04-17
Application number: 15799242.1
Filing date: 2015-05-28
Inventor: SjÖlÉn, Lennart  
6
EP2956723B1
Publication/Patent Number: EP2956723B1
Publication date: 2019-06-26
Application number: 14751206.5
Filing date: 2014-02-18
7
EP3012542B1
Publication/Patent Number: EP3012542B1
Publication date: 2019-08-14
Application number: 14814377.9
Filing date: 2014-06-10
8
EP2831510B1
Publication/Patent Number: EP2831510B1
Publication date: 2019-07-10
Application number: 13712298.2
Filing date: 2013-03-27
Inventor: Van, Gysel Carl  
Assignee: VGE bvba
9
EP3115699B1
Publication/Patent Number: EP3115699B1
Publication date: 2019-05-01
Application number: 16176094.7
Filing date: 2016-06-24
10
US2019331346A1
Publication/Patent Number: US2019331346A1
Publication date: 2019-10-31
Application number: 16/310,617
Filing date: 2016-08-25
Inventor: Kawashima, Mitsuru  
Abstract: Provided is a heat pump device capable of discharging air in a heat medium circuit regardless of the height of the positions of two bodies, and capable of preventing a refrigerant from flowing out into a body not housing a liquid heat exchanger when the refrigerant enters the heat medium circuit in the liquid heat exchanger. To achieve this, the heat pump device includes: a refrigerant pipe connecting a compressor, a decompressor, an air heat exchanger, and a liquid heat exchanger circularly; a heat medium pipe connecting the liquid heat exchanger and a pump circularly; first and second air vent valves capable of discharging gas in the heat medium pipe to the outside; a first body housing the compressor, the decompressor, the air heat exchanger, the liquid heat exchanger, the refrigerant pipe, and the first air vent valve; and a second body housing the second air vent valve. The pump causes the liquid heat medium to flow in a predetermined circulatory direction in the heat medium pipe, and the liquid heat exchanger, the first air vent valve, and the second air vent valve are arranged in this order along the circulatory direction. Provided is a heat pump device capable of discharging air in a heat medium circuit regardless of the height of the positions of two bodies, and capable of preventing a refrigerant from flowing out into a body not housing a liquid heat exchanger when the refrigerant enters the ...more ...less
11
EP3488152A1
Publication/Patent Number: EP3488152A1
Publication date: 2019-05-29
Application number: 17749140.4
Filing date: 2017-07-20
Inventor: Gebhardt, Peter  
12
EP3438557A1
Publication/Patent Number: EP3438557A1
Publication date: 2019-02-06
Application number: 18185626.1
Filing date: 2018-07-25
Abstract: A heat pump hot-water heater according to the present disclosure includes a refrigerant circuit configured by connecting a compressor, a water-cooling medium heat exchanger, a pressure-reducing device, and an evaporator; a heating medium circulating circuit in which a heating medium heated by the water-cooling medium heat exchanger circulates; and a circulation pump that is arranged in the heating medium circulating circuit and conveys the heating medium. The refrigerant circuit and the heating medium circulating circuit are arranged in one exterior casing. The heating medium circulating circuit is provided with a filter that collects impurities. A heat pump hot-water heater according to the present disclosure includes a refrigerant circuit configured by connecting a compressor, a water-cooling medium heat exchanger, a pressure-reducing device, and an evaporator; a heating medium circulating circuit in which a heating ...more ...less
13
EP3480534A1
Publication/Patent Number: EP3480534A1
Publication date: 2019-05-08
Application number: 18203983.4
Filing date: 2018-11-01
Abstract: Die vorliegende Erfindung betrifft ein Verfahren (100) zum Betreiben einer Heizungsanlage (1), insbesondere einer Luft/Wasser-Wärmepumpe, mit einem Kältemittelkreis (10) und einem Heizungskreis (20), und eine entsprechende Heizungsanlage (1). Das Verfahren (100) umfasst die Schritte: Erfassen (110) eines Wertes eines Parameters, der proportional zu einem Vereisungsgrad eines Kältemittelverdampfers (30) ist; Steuern (130) eines Volumenstroms durch den Heizungskreis (20), insbesondere Erhöhen des Volumenstroms durch den Heizungskreis, wenn der Wert des Parameters einem Vereisungsgrad entspricht, der einen ersten Schwellwert übersteigt; Einleiten (150) eines Abtauvorgangs des Kältemittelverdampfers (30), insbesondere durch Umkehrung des Kältemittelkreises (10), wenn der Wert des Parameters einem Vereisungsgrad entspricht, der einen zweiten Schwellwert übersteigt, wobei der erste Schwellwert einem geringeren Vereisungsgrad als der zweite Schwellwert entspricht. Die vorliegende Erfindung betrifft ein Verfahren (100) zum Betreiben einer Heizungsanlage (1), insbesondere einer Luft/Wasser-Wärmepumpe, mit einem Kältemittelkreis (10) und einem Heizungskreis (20), und eine entsprechende Heizungsanlage (1). Das Verfahren (100) umfasst die S ...more ...less
14
EP2402686B1
Publication/Patent Number: EP2402686B1
Publication date: 2019-05-01
Application number: 10745948.9
Filing date: 2010-02-22
Inventor: Honda, Masahiro  
15
EP2088388B1
Publication/Patent Number: EP2088388B1
Publication date: 2019-10-02
Application number: 08151132.1
Filing date: 2008-02-06
16
EP3163176B1
Publication/Patent Number: EP3163176B1
Publication date: 2019-09-11
Application number: 14896872.0
Filing date: 2014-06-30
17
EP2893264B1
Publication/Patent Number: EP2893264B1
Publication date: 2019-11-06
Application number: 13760008.6
Filing date: 2013-09-05
18
US10208433B2
Publication/Patent Number: US10208433B2
Publication date: 2019-02-19
Application number: 15/361,506
Filing date: 2016-11-28
Inventor: Sjölén, Lennart  
Abstract: A heating device (1) comprising: an energy well (2), a heat pump (3) which is adapted to take up and transfer heat from the energy well (2) by the aid of a line from the energy well to the heat pump (3) for transport of anti-freeze liquid, a heat extraction device (4) connected to a heat pump (3) which selectively can be brought into a connected and a disconnected position, thaw coils (5) for thawing ground surrounding the thaw coils (5), in which the anti-freeze liquid is transportable, which thaw coils (5) selectively can be connected and disconnected to the line from the energy well to the heat pump (3), a heat exchanger (7) connected to the heat extraction device (4) adapted to selectively transfer heat to the thaw coils (5) by the aid of the heat extraction device (4), a control system (6) which is adapted for controlling the heating device (1) whereby low temperature heat from the energy well (2) alternatively high temperature heat from the heat pump (3) and the heat extraction device (4) selectively can be used for pre-heating, thawing, or maintenance heating ground surrounding the thaw coils (5). A heating device (1) comprising: an energy well (2), a heat pump (3) which is adapted to take up and transfer heat from the energy well (2) by the aid of a line from the energy well to the heat pump (3) for transport of anti-freeze liquid, a heat extraction device (4) connected ...more ...less
19
US10260760B2
Publication/Patent Number: US10260760B2
Publication date: 2019-04-16
Application number: 15/542,772
Filing date: 2016-10-31
Assignee: J&G
Abstract: Disclosed is a two-stage heating geothermal system using geothermal energy. The two-stage heating geothermal system includes a geothermal heat exchanger, a geothermal heat pump, a booster heat pump, a bypass line, and a bypass line opening and closing valve. The operating efficiency of the two-stage heating geothermal system using geothermal energy is significantly improved. Hot water supply, auxiliary heating, and the like are controlled to be completely independent of main heating. Disclosed is a two-stage heating geothermal system using geothermal energy. The two-stage heating geothermal system includes a geothermal heat exchanger, a geothermal heat pump, a booster heat pump, a bypass line, and a bypass line opening and closing valve. The operating ...more ...less
20
US2019312510A1
Publication/Patent Number: US2019312510A1
Publication date: 2019-10-10
Application number: 16/339,049
Filing date: 2016-12-28
Abstract: A converter device includes a rectifier circuit to rectify an AC voltage output from an AC power supply, a booster circuit including a plurality of reactors, a plurality of switching elements, and a plurality of backflow prevention elements to boost an output voltage of the rectifier circuit, a smoothing capacitor to smooth an output voltage of the booster circuit, a bus-current detection circuit to detect a value of a current that flows between the rectifier circuit and the booster circuit, a first filter circuit having a first filter time constant, a second filter circuit having a second filter time constant shorter than the first filter time constant, and a control unit to control an operation of the switching elements as a current value detected by the bus-current detection circuit is input to the control unit via the first filter circuit and the second filter circuit. A converter device includes a rectifier circuit to rectify an AC voltage output from an AC power supply, a booster circuit including a plurality of reactors, a plurality of switching elements, and a plurality of backflow prevention elements to boost an output voltage of the ...more ...less