Heat pump system with auxiliary heat exchanger
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-030/02
F25B-049/02
F25B-013/00
F24D-005/12
F24D-012/02
F24D-019/10
출원번호
US-0743140
(2013-01-16)
등록번호
US-9534818
(2017-01-03)
발명자
/ 주소
Bois, David G.
출원인 / 주소
SI2 Industries, LLC
대리인 / 주소
Fredrikson & Byron, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
36
초록▼
Disclosed are embodiments of heat pump systems and methods for operating such systems in the heating mode while a heat pump operating parameter reaches or is equal to a predetermined operating value at which it is not advisable to use conventional heat pump systems for heating an enclosed structure.
Disclosed are embodiments of heat pump systems and methods for operating such systems in the heating mode while a heat pump operating parameter reaches or is equal to a predetermined operating value at which it is not advisable to use conventional heat pump systems for heating an enclosed structure. In addition to ancillary components, the heat pump systems includes indoor, outdoor and auxiliary heat exchangers, reversing and flow diverting valves, compressors, refrigerant superheat controllers, and auxiliary energy sources. During the heating mode of operation, while the heat pump operating parameter reaches or is equal to the predetermined operating value, the flow of liquid refrigerant through the outdoor heat exchangers is inhibited and is diverted to flow through the auxiliary heat exchangers. Thermal energy from the auxiliary energy source is used for evaporating the liquid refrigerant flowing through the auxiliary heat exchangers.
대표청구항▼
1. A method of operating a heat pump system in a heating mode of operation, the heat pump system comprising: one or more indoor heat exchangers;one or more compressors;one or more refrigerant superheat controllers;one or more reversing valves;one or more outdoor heat exchangers, each paired with an
1. A method of operating a heat pump system in a heating mode of operation, the heat pump system comprising: one or more indoor heat exchangers;one or more compressors;one or more refrigerant superheat controllers;one or more reversing valves;one or more outdoor heat exchangers, each paired with an auxiliary heat exchanger that is located outdoors so as to be exposed to an outdoor environment, each auxiliary heat exchanger located adjacent a corresponding one of said one or more outdoor heat exchangers;one or more auxiliary energy sources, the one or more auxiliary energy sources comprising a water heater including a water loop for supplying heated water along a water flow path to at least one of the one or more auxiliary heat exchangers; andfirst and second flow diverting valves, or four flow valves, operable to selectively define a refrigerant flow path through either a corresponding outdoor heat exchanger or a corresponding auxiliary heat exchanger, such that when the refrigerant flow path is defined through the corresponding outdoor heat exchanger the corresponding auxiliary heat exchanger is isolated, and when the refrigerant flow path is defined through the corresponding auxiliary heat exchanger the corresponding outdoor heat exchanger is isolated,the method comprising: determining a heat pump operating parameter;once the heat pump operating parameter has reached a predetermined operating value and an outdoor temperature is 32 degrees Fahrenheit or less: inhibiting a flow of refrigerant to each outdoor heat exchanger that is configured for the heating mode of operation;enabling said flow of refrigerant to pass through each corresponding paired auxiliary heat exchanger; andactivating the one or more auxiliary energy sources when said flow of refrigerant through any one or more auxiliary heat exchangers is enabled, thereby exchanging thermal energy between the activated auxiliary energy source(s) and refrigerant flowing through one or more auxiliary heat exchangers, the method comprising regulating the activated auxiliary energy source(s) so as to substantially maintain a desired temperature for water supplied by the water heater, for one or more auxiliary heat exchangers, and/or for refrigerant flowing through one or more auxiliary heat exchangers. 2. The method of claim 1, comprising inhibiting defrost operation for each outdoor heat exchanger through which said flow of refrigerant has been inhibited. 3. The method of claim 1, comprising changing the desired temperature from a default setting of 60 degrees Fahrenheit (15.6 degrees Celsius). 4. The method of claim 1, wherein the heat pump operating parameter is selected from the group consisting of outdoor air dry-bulb temperature, outdoor air wet-bulb temperature, outdoor air dew-point temperature, outdoor air relative humidity, outdoor air humidity ratio, outdoor air enthalpy, heat pump coefficient of performance, heat pump energy efficiency ratio, operating speed of each compressor, and any combination thereof. 5. The method of claim 1, comprising: determining an outdoor air temperature;using the outdoor air temperature as the heat pump operating parameter; andsetting the predetermined operating value equal to a minimum outdoor air temperature. 6. The method of claim 5, comprising changing the minimum outdoor air temperature from a default setting of 5 degrees Fahrenheit (−15 degrees Celsius). 7. The method of claim 1, comprising changing the predetermined operating value from a default value. 8. The method of claim 1, wherein the heat pump system comprises the first and second flow diverting valves, the first flow diverting valve is located between an inlet to a corresponding outdoor heat exchanger and an inlet to a corresponding auxiliary heat exchanger, and the second flow diverting valve is located between an outlet from the corresponding outdoor heat exchanger and an outlet from the corresponding auxiliary heat exchanger. 9. The method of claim 8, wherein the first and second flow diverting valves are two-position valves each having a first, second, and third port. 10. The method of claim 1, comprising varying a volume of refrigerant flowing through the heat pump system while operating. 11. The method of claim 1, comprising varying a heating capacity and a cooling capacity of the heat pump system while operating. 12. A method of operating a heat pump system in a heating mode of operation, the heat pump system comprising: one or more indoor heat exchangers;one or more compressors;one or more refrigerant superheat controllers;one or more reversing valves;one or more outdoor heat exchangers; andan auxiliary system comprising: one or more auxiliary energy sources comprising a water heater;one or more first flow diverting valves;one or more second flow diverting valves; andone or more auxiliary heat exchangers located outdoors, each auxiliary heat exchanger paired with a set of the first and second flow diverting valves and with a corresponding one of the outdoor heat exchangers, each auxiliary heat exchanger located adjacent a corresponding outdoor heat exchanger,the water heater including a water loop for supplying heated water along a water flow path to at least one of the one or more auxiliary heat exchangers;the set of first and second flow diverting valves operable to selectively define a refrigerant flow path through either a corresponding auxiliary heat exchanger or a corresponding outdoor heat exchanger, such that when the refrigerant flow path is defined through the corresponding auxiliary heat exchanger the corresponding outdoor heat exchanger is isolated, and when the refrigerant flow path is defined through the corresponding outdoor heat exchanger the corresponding auxiliary heat exchanger is isolated;the method comprising: determining a heat pump operating parameter;once the heat pump operating parameter has reached a predetermined operating value and an outdoor temperature is 32 degrees Fahrenheit or less:inhibiting a flow of refrigerant to each outdoor heat exchanger that is configured for the heating mode of operation; andenabling said flow of refrigerant to pass through each corresponding paired auxiliary heat exchanger; andoperating the one or more auxiliary energy sources when said flow of refrigerant through any one or more auxiliary heat exchangers is enabled, thereby exchanging thermal energy between the activated auxiliary energy source(s) and refrigerant flowing through one or more auxiliary heat exchangers, the auxiliary energy source(s) operated so as to substantially maintain a desired temperature for water supplied by the water heater, for one or more auxiliary heat exchangers, and/or for refrigerant flowing through one or more auxiliary heat exchangers. 13. The method of claim 12, comprising inhibiting defrost operation for each outdoor heat exchanger through which said flow of refrigerant has been inhibited. 14. The method of claim 12, comprising changing the desired temperature from a default setting of 60 degrees Fahrenheit (15.6 degrees Celsius). 15. The method of claim 12, wherein the heat pump operating parameter is selected from the group consisting of outdoor air dry-bulb temperature, outdoor air wet-bulb temperature, outdoor air dew-point temperature, outdoor air relative humidity, outdoor air humidity ratio, outdoor air enthalpy, heat pump coefficient of performance, heat pump energy efficiency ratio, operating speed of each compressor, and any combination thereof. 16. The method of claim 12, comprising: determining an outdoor air temperature;using the outdoor air temperature as the heat pump operating parameter; andsetting the predetermined operating value equal to a minimum outdoor air temperature. 17. The method of claim 16, comprising changing the minimum outdoor air temperature from a default setting of 5 degrees Fahrenheit (−15 degrees Celsius). 18. The method of claim 12, comprising changing the predetermined operating value from a default value. 19. The method of claim 12, wherein a first of the one or more flow diverting valves is located between an inlet to a corresponding outdoor heat exchanger and an inlet to a corresponding auxiliary heat exchanger, and a second of the one or more flow diverting valves is located between an outlet from the corresponding outdoor heat exchanger and an outlet from the corresponding auxiliary heat exchanger. 20. The method of claim 19, wherein the first and second of the one or more flow diverting valves are two-position valves each having a first, second, and third port. 21. The method of claim 12, comprising varying a volume of refrigerant flowing through the heat pump system while operating. 22. The method of claim 12, comprising varying a heating capacity and a cooling capacity of the heat pump system while operating. 23. A heat pump system comprising: one or more indoor heat exchangers;one or more compressors;one or more refrigerant superheat controllers;one or more reversing valves;one or more outdoor heat exchangers, each paired with an auxiliary heat exchanger that is located outdoors, each auxiliary heat exchanger located adjacent a corresponding one of said one or more outdoor heat exchangers;one or more auxiliary energy sources comprising a boiler;first and second flow diverting valves, or four flow valves, operable to selectively define a refrigerant flow path either through one of the one or more outdoor heat exchangers or through a corresponding auxiliary heat exchanger, such that when the refrigerant flow path is defined through the corresponding auxiliary heat exchanger the corresponding outdoor heat exchanger is isolated, and when the through flow path is defined through an outdoor heat exchanger the corresponding auxiliary heat exchanger is isolated;the heat pump system operable to: inhibit a flow of refrigerant to each outdoor heat exchanger that is configured for a heating mode of operation, and enable said flow of refrigerant to pass through each corresponding paired auxiliary heat exchanger once the heat pump operating parameter has reached a predetermined operating value; andactivate the one or more auxiliary energy sources when said flow of refrigerant through any one or more auxiliary heat exchangers is enabled, thereby exchanging thermal energy between the activated auxiliary energy source(s) and refrigerant flowing through one or more auxiliary heat exchangers, so as to substantially maintain a desired temperature for water supplied by the boiler, for one or more auxiliary heat exchangers, and/or for refrigerant flowing through one or more auxiliary heat exchangers. 24. The heat pump system of claim 23, wherein the system is operable to inhibit defrost operation for each outdoor heat exchanger through which said flow of refrigerant has been inhibited. 25. The heat pump system of claim 23, wherein the desired temperature is changeable from a default setting of 60 degrees Fahrenheit (15.6 degrees Celsius). 26. The heat pump system of claim 23, Wherein the heat pump operating parameter is selected from the group consisting of outdoor air dry-bulb temperature, outdoor air wet-bulb temperature, outdoor air dew-point temperature, outdoor air relative humidity, outdoor air humidity ratio, outdoor air enthalpy, heat pump coefficient of performance, heat pump energy efficiency ratio, operating speed of each compressor, and any combination thereof. 27. The heat pump system of claim 23, wherein the heat pump operating parameter is an outdoor air temperature; andthe predetermined operating value is a minimum outdoor air temperature at which said flow of refrigerant is inhibited through each outdoor heat exchanger and enabled through each corresponding paired auxiliary heat exchanger. 28. The heat pump system of claim 27, wherein the minimum outdoor air temperature is changeable from a default setting of 5 degrees Fahrenheit (−15 degrees Celsius). 29. The heat pump system of claim 23, wherein the predetermined operating value is changeable from a default value. 30. The heat pump system of claim 23, wherein the heat pump system comprises the first and second flow diverting valves, the first flow diverting valve is located between an inlet to a corresponding outdoor heat exchanger and an inlet to a corresponding auxiliary heat exchanger, and the second flow diverting valve is located between an outlet from the corresponding outdoor heat exchanger and an outlet from the corresponding auxiliary heat exchanger. 31. The heat pump system of claim 30, wherein the first and second flow diverting valves are two-position valves each having a first, second, and third port. 32. The heat pump system of claim 23, wherein each outdoor heat exchanger is in the heating, mode of operation if each reversing valve in fluid communication therewith is positioned for the heating mode of operation. 33. The heat pump system of claim 23, comprising a variable refrigerant volume heat pump. 34. The heat pump system of claim 23, comprising a variable heating and cooling capacity heat pump. 35. The heat pump system of claim 23, comprising a variable refrigerant flow heat pump.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (36)
Han Geun P. (Suwon-City KRX) Sung Ho Y. (Suwon-City KRX), Air conditioner.
Copeland,Larry; Gaylord,Robert; Haught,Mark; Mahderekal,Isaac; Sondeno,Dudley J.; Young,Tommis E., Gas engine driven heat pump system with integrated heat recovery and energy saving subsystems.
Kasagi, Tsukasa; Kunita, Hiraku; Morishima, Ryuji; Yamagishi, Kazuo, Gas heat pump type air conditioning device, engine-coolant-water heating device, and operating method for gas heat pump type air conditioning device.
Misawa Makoto,JPX ; Takiguchi Yukiyoshi,JPX ; Sugita Ryosuke,JPX, Heat pump system with balanced total heating-emitting and absorbing capacities and method for stable heat pumping operat.
Sommers Hans (Essen DEX) Jannemann Theo (Dorsten DEX), Heating system incorporating an absorption-type heat pump and methods for the operation thereof.
Kaneko Teruji (Chayamachi JPX) Kawabe Toshihiko (Chayamachi JPX) Awasaka Moriyoshi (Chayamachi JPX), Outdoor unit of an air conditioner of an engine heat pump type.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.