CN113654139A - Cold and hot source heat pump integrated system and method and device for controlling same - Google Patents

Cold and hot source heat pump integrated system and method and device for controlling same Download PDF

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Publication number
CN113654139A
CN113654139A CN202110886600.2A CN202110886600A CN113654139A CN 113654139 A CN113654139 A CN 113654139A CN 202110886600 A CN202110886600 A CN 202110886600A CN 113654139 A CN113654139 A CN 113654139A
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China
Prior art keywords
heat
cold
heat exchanger
demand
integrated system
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CN202110886600.2A
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Chinese (zh)
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CN113654139B (en
Inventor
李鹏辉
李海军
王彩平
赵国胜
贾香慧
周洪进
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202110886600.2A priority Critical patent/CN113654139B/en
Publication of CN113654139A publication Critical patent/CN113654139A/en
Priority to PCT/CN2022/094929 priority patent/WO2023010956A1/en
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Publication of CN113654139B publication Critical patent/CN113654139B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0003Exclusively-fluid systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/40Fluid line arrangements

Abstract

The application relates to wisdom family technical field discloses a cold and heat source heat pump integrated system, includes: a refrigeration cycle unit including a first heat exchanger and a second heat exchanger; the heat exchange end of the heat output unit realizes heat exchange with the first heat exchanger, and the plurality of heat output interfaces are externally connected with a heat exchange device of a heat-requiring terminal; the cold energy exchange end of the cold energy output unit realizes heat exchange with the second heat exchanger, and a plurality of cold output interfaces are externally connected with a cold-requiring terminal heat exchanger; the outdoor heat exchanger is connected in parallel into the refrigeration cycle unit by conducting the first pipeline group or the second pipeline group. The energy-requiring equipment is intensively and uniformly distributed by the refrigeration cycle unit in cooperation with the heat output unit and the cold output unit, heat and cold generated on the two heat exchangers are effectively utilized, heating equipment and refrigerating equipment in a specific environment space are unified, waste heat is recycled, and cost is greatly saved. The application also discloses a method and a device for controlling the same.

Description

Cold and hot source heat pump integrated system and method and device for controlling same
Technical Field
The present application relates to the field of smart home technologies, and for example, to an integrated system of a cold-heat source heat pump, and a method and an apparatus for controlling the same.
Background
At present, a set of refrigeration cycle units is respectively arranged on a refrigeration device and a heating device to meet the refrigeration/heating requirements of the refrigeration device and the heating device, and the generated waste energy is randomly discharged to cause energy waste. And the respective manufacturing costs of the respective refrigerating devices and heating devices are high.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the product forms of the existing refrigeration equipment and heating equipment cause great energy waste, and no effective and simple way for utilizing waste energy exists.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a cold and heat source heat pump integrated system, and a method and a device for controlling the same, and provides a new cold and heat unified allocation mode, so that each heat demand device and each cold demand device do not need to be provided with a heat pump compressor independently, and heat and cold are effectively utilized.
In some embodiments, the cold-heat source heat pump integrated system includes: a refrigeration cycle unit including a first heat exchanger and a second heat exchanger; the heat output unit comprises a heat exchange end and a plurality of heat output interfaces, the heat exchange end realizes heat exchange with the first heat exchanger, and the plurality of heat output interfaces are used for being communicated with the heat exchange device of the heat-requiring terminal; the cold output unit comprises a cold exchange end and a plurality of cold output interfaces, the cold exchange end realizes heat exchange with the second heat exchanger, and the plurality of cold output interfaces are used for being communicated with the terminal heat exchanger needing cold; the outdoor heat exchanger is connected with the first heat exchanger in parallel through a first pipeline group and connected with the second heat exchanger in parallel through a second pipeline group; and the outdoor heat exchanger is connected into the refrigeration cycle unit in parallel by switching on the first pipeline group or the second pipeline group.
In some embodiments, the method comprises: acquiring total heat demand according to the heat demand of each heat demand terminal;
acquiring total cold demand according to the cold demand of each cold demand terminal;
controlling the first pipeline set to be conducted under the condition that the total cooling demand is greater than the total heat demand, and connecting the outdoor heat exchanger into the refrigeration cycle unit and connecting the outdoor heat exchanger with the first heat exchanger in parallel;
controlling the second pipeline set to be conducted under the condition that the total cooling demand is smaller than the total heat demand, and connecting the outdoor heat exchanger into the refrigeration cycle unit and connecting the outdoor heat exchanger with the second heat exchanger in parallel;
under the condition that the total cooling demand is equal to the total heat demand, keeping the first pipeline group and the second pipeline group closed, and controlling the refrigeration cycle unit to operate;
and controlling the refrigeration cycle unit to start and operate according to the total heat demand or the total cold demand with large demand.
In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned method for control of a cold-heat source heat pump integrated system when executing the program instructions.
In some embodiments, the cold-heat source heat pump integrated system includes: the device for controlling the cold and heat source heat pump integrated system comprises the device for controlling the cold and heat source heat pump integrated system.
The cold and hot source heat pump integrated system, the method and the device for controlling the same provided by the embodiment of the disclosure can realize the following technical effects:
the cold and heat source heat pump integrated system of the embodiment of the disclosure provides a new cold and heat unified allocation mode, so that each heat demand device and each cold demand device do not need to be provided with a heat pump compressor independently, and a refrigeration cycle unit is matched with a heat output unit and a cold output unit to be allocated uniformly, so that heat and cold generated on two heat exchangers of the refrigeration cycle unit are effectively utilized, the current situation that each existing refrigeration device or heating device is provided with an independent heat pump compressor is changed, the heating device and the refrigeration device in a specific environment space are unified, waste heat is effectively recycled, and cost is greatly saved. Moreover, the energy consumption and the noise are reduced.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic view of a cold-heat source heat pump integrated system provided in an embodiment of the present disclosure;
fig. 2 is a schematic view of another heat pump integrated system for heat sources of cold and heat sources provided in an embodiment of the present disclosure;
fig. 3 is a schematic view of another heat pump integrated system for heat sources and cold sources provided in the embodiment of the present disclosure;
fig. 4 is a schematic view of another heat pump integrated system for heat sources of cold and heat sources provided by the embodiment of the disclosure;
fig. 5 is a schematic diagram of a method for controlling a heat pump integrated system of a cold and heat source according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of an apparatus for controlling a heat pump integrated system of a cold and heat source according to an embodiment of the present disclosure.
Reference numerals:
10. a refrigeration cycle unit; 11. a first heat exchanger; 12. a second heat exchanger; 13. a compressor; 14. a throttling device; 20. a heat output unit; 21. a heat exchange end; 22. a heat output interface; 23. a heat circulation line; 24. a heat circulation pump; 30. a cold output unit; 31. a cold energy exchange end; 32. a cold output interface; 33. a cold energy circulation pipeline; 34. a cold circulation pump; 40. an outdoor heat exchanger; 411. a heat pipeline I; 412. a heat pipeline II; 413. a thermal control valve I; 414. a thermal control valve II; 421. a cold energy pipeline I; 422. a cold energy pipeline II; 423. a cold control valve I; 424. a cold control valve II; 50. a forced cooling output unit; 51. a forced cooling output interface; 52. a first communicating pipe; 53. a second communication line; 60. a fluid supply device; 71. a terminal requiring heat; 72. a terminal needing cooling; 73. a forced cooling terminal is required.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
With reference to fig. 1 to 4, the embodiment of the present disclosure provides a cold and heat source heat pump integrated system, including a refrigeration cycle unit 10, a heat output unit 20, a cold output unit 30, and an outdoor heat exchanger 40, where the refrigeration cycle unit 10 includes a first heat exchanger 11 and a second heat exchanger 12; the heat output unit 20 comprises a heat exchange end 21 and a plurality of heat output interfaces 22, the heat exchange end 21 realizes heat exchange with the first heat exchanger 11, and the plurality of heat output interfaces 22 are used for being communicated with a heat exchange device of the heat-requiring terminal 71; the cold output unit 30 comprises a cold exchange end 31 and a plurality of cold output interfaces 32, the cold exchange end 31 and the second heat exchanger 12 realize heat exchange, and the plurality of cold output interfaces 32 are used for being communicated with the heat exchanger of the cold terminal 72; the outdoor heat exchanger 40 is arranged in parallel with the first heat exchanger 11 through a first pipeline group and is arranged in parallel with the second heat exchanger 12 through a second pipeline group; the outdoor heat exchanger 40 is connected in parallel to the refrigeration cycle unit 10 by switching the conduction of the first pipe group or the second pipe group.
The cold and heat source heat pump integrated system of the embodiment of the present disclosure is suitable for a scene having both a cold terminal 72 and a hot terminal 71 in a specific environment space, such as a home environment, a community, and even a community. The refrigeration cycle units 10 of the heat demand terminals 71 and the cold demand terminals 72 in the specific environmental space are separated and integrated into one refrigeration cycle unit 10, and the heat and the cold are respectively output to the heat exchangers of the cold demand terminals 72 and the heat exchangers of the cold demand terminals 72 corresponding to the heat output units 20 and the cold output units 30. Meanwhile, in practical application, by combining the situation that the heat demand quantity and the cold demand quantity in the specific environment space cannot be completely matched, the outdoor heat exchanger 40 is additionally arranged, and the first heat exchanger 11 can be connected in parallel with the first heat exchanger 11 and connected into the refrigeration cycle unit 10 or the second heat exchanger 12 can be connected in parallel with the refrigeration cycle unit 10 by switching the conduction of the first pipeline group and the second pipeline group, so that redundant heat or cold quantity is consumed, cold and heat matching of the cold and heat source heat pump integrated system is realized, and the heat demand terminal 71 and the cold demand terminal 72 are ensured to obtain the heat and cold quantity matched with each other.
The cold and heat source heat pump integrated system of the embodiment of the disclosure provides a new cold and heat unified allocation mode, so that each heat demand device and each cold demand device do not need to be separately configured with a heat pump compressor, and one refrigeration cycle unit 10 is intensively matched with the heat output unit 20 and the cold output unit 30 for unified allocation, so that heat and cold generated on two heat exchangers of the refrigeration cycle unit 10 are effectively utilized, the current situation that each existing refrigeration device or heating device is configured with a separate heat pump compressor is changed, the heating device and the refrigeration device in a specific environment space are unified, waste heat is effectively recycled, and cost is greatly saved. Moreover, the energy consumption and the noise are reduced.
The refrigeration cycle unit 10 further comprises a compressor 13, a throttling device 14 and other structural members, and the compressor 13, the second heat exchanger 12, the throttling device 14 and the first heat exchanger 11 are sequentially communicated end to form a complete refrigeration cycle system.
In the embodiment of the present disclosure, the heat-requiring terminal 71 and the cold-requiring terminal 72 only need to arrange a heat exchanger in the corresponding heat-requiring space/cold-requiring space, and the heat exchanger is communicated with the heat output interface 22 of the heat output unit 20 or the cold output interface 32 of the cold output unit 30. It is to be understood that the hot terminal 71 and the cold terminal 72 are not meant to be complete heating and cooling devices, at least the heat pump compressor and a heat exchanger are eliminated from the refrigeration cycle. Of course, when constructing the cold and heat source heat pump integrated system according to the embodiment of the present disclosure, the heat demand terminal 71 and the cold demand terminal 72 may also be existing heating equipment and cooling equipment, and only the heat exchangers that provide heat/cold energy to the space requiring heat/space requiring cold are connected to the corresponding heat output interfaces 22 or cold output interfaces 32.
In the embodiment of the present disclosure, in the heat output unit 20, the number of the plurality of heat output interfaces 22 is not limited, and is determined according to the number of heat exchanging devices of the heat demand terminal 71 that are actually connected and pre-connected. The terminal 71 may include any one or more of a heating device, a water heating device, a floor heating device, and a fan. The heat-exchanging device of the heat-requiring terminal 71 is a component used for exchanging heat in each heat-requiring terminal 71, for example, a terminal radiator in a heating device, a heat-exchanging coil/heat exchanger in a hot water device, a floor heating pipeline of a floor heating device, a fan disc in a fan, an indoor unit pipe of an air conditioner in a heating mode, and the like. For example, as shown in fig. 1, the heat output interfaces 22 include four heat output interfaces 22, which can be respectively communicated with any four of a fan coil, a radiator, a heat exchange coil/heat exchanger inside the hot water device, a floor heating pipeline, and a heat exchanger of an indoor unit of an air conditioner. Of course, without being limited to the four listed, it is also possible to include air conditioning and classification as being both hot and cold requiring terminals, which may also communicate with the cold output interface.
In the embodiment of the present disclosure, in the refrigeration output unit 30, the number of the plurality of refrigeration output interfaces 32 is not limited, and is determined according to the number of the heat exchanging devices of the cold demand terminal 72 that are actually connected and pre-connected. Wherein the terminal 72 includes any one or more of a refrigerator, a freezer, a wine chest, and a blower. The heat exchanging device of the cold demand terminal 72 is a component for exchanging heat in each cold demand terminal 72, such as a heat exchanger/heat exchanging coil in a refrigerator, freezer, and wine chest, a fan coil in a fan, and the like. For example, as shown in fig. 1, the cold output interface 32 includes three cold output interfaces 32 that can be in communication with a fan coil, a heat exchanger of a refrigerated cabinet, and a wine cabinet heat exchange coil, respectively. Of course, the heat exchanger of the indoor unit of the air conditioner is not limited to the three listed types, and the terminal which needs both heat and cold can be included.
In the embodiment of the present disclosure, the hot terminal 71 and the cold terminal 72 include home terminal devices that can be applied to a home environment, a cell, or even a community, and are not limited to the home terminal devices.
In the disclosed embodiment, the hot output interface 22 and the cold output interface 32 each have two ports, one being an inlet port and the other being an outlet port.
Optionally, a flow control device is disposed on each of the two ports of the heat output interface 22. Controlling the amount of heat output from the heat output interface 22. Such as an electrically controlled valve.
Optionally, flow control devices are provided on both ports of the cold output interface 32. The cold output quantity of the cold output interface 32 is controlled. Such as an electrically controlled valve.
The structural forms of the heat output unit 20 and the cold output unit 30 are not limited as long as the energy delivery function is realized. Alternatively, the heat output unit 20 comprises a fluid medium circulation output unit, and/or the coldness output unit 30 comprises a fluid medium circulation output unit. The fluid medium circulation output unit comprises an energy exchange end, a circulation pipeline and an energy output interface. According to the heat exchange energy, the energy exchange end is a heat exchange end 21 or a cold exchange end 31, the energy output interface is a heat output interface 22 or a cold output interface 32, the circulating pipeline is a heat circulating pipeline 23 or a cold circulating pipeline 33, and the circulating pipeline is further provided with a corresponding circulating pump to realize fluid circulation. Such as a hot circulation pump 24 and a cold circulation pump 34.
The structural form of the energy exchange end (the heat exchange end 21 or the cold exchange end 31) of the fluid medium circulation output unit is determined according to the structural form of the first heat exchanger 11 or the second heat exchanger 12 for performing heat exchange. The first heat exchanger 11 will be described as an example. When the first heat exchanger 11 is of a wind-fluid type heat exchange structure, the fluid flow path is connected to the refrigeration cycle unit 10, and the heat exchange end 21 of the fluid medium circulation output unit is disposed on the surface of the first heat exchanger 11, for example, wound. When the first heat exchanger 11 is of a fluid-fluid heat exchange structure, that is, when two fluid flow paths are provided, one fluid flow path is connected to the refrigeration cycle unit 10, and the heat exchange end 21 of the fluid medium circulation output unit is connected to the other fluid flow path.
Alternatively, the first heat exchanger 11 and the second heat exchanger 12 employ a fluid-fluid heat exchange structure.
In the fluid medium circulation output unit, the fluid medium is not limited, and fluid capable of carrying energy, such as water, is sufficient.
The energy output interface (the hot output interface 22 or the cold output interface 32) of the fluid medium circulation output unit is multiple, so that different terminals can be accessed. The energy output interfaces are arranged in parallel, and control valves are arranged on the energy inflow interfaces and the energy outflow interfaces of the energy output interfaces to adjust the fluid flow of each interface and further adjust the energy output quantity.
In some embodiments, the heat source-cold heat pump integrated system further includes a fluid supply device 60 for supplying the fluid medium to the heat output unit 20 and the cold output unit 30. Alternatively, the heat output unit 20 and the cold output unit 30 are water circulation output units, and the fluid supply device 60 supplies water to the heat output unit 20 and the cold output unit 30. Alternatively, fluid supply 60 is a water pump.
In the embodiment of the present disclosure, it can be understood that the first pipeline group and the second pipeline group are in a normally closed state, and only when necessary, the first pipeline group or the second pipeline group is conducted.
In some embodiments, the first pipe set includes two heat pipes and two heat control valves, the two heat pipes connect two ports of the outdoor heat exchanger 40 to two pipes of two ports of the first heat exchanger 11 respectively; the two heat control valves are respectively connected into the corresponding heat pipelines; the outdoor heat exchanger 40 is controlled to be communicated with or disconnected from the first heat exchanger 11 in parallel by controlling the opening or closing of the two heat control valves in a linkage manner. As shown in fig. 1, the two heat pipelines are respectively denoted as a heat pipeline i 411 and a heat pipeline ii 412, the two heat control valves are respectively denoted as a heat control valve i 413 and a heat control valve ii 414, the heat pipeline i 411 communicates the first port of the outdoor heat exchanger 40 with the first port of the first heat exchanger 11, and the heat control valve i 413 is connected to the heat pipeline i 411; the heat pipeline II 412 is communicated with the second port of the outdoor heat exchanger 40 and the second port of the first heat exchanger 11, and the heat control valve II 414 is connected to the heat pipeline II 412.
In some embodiments, the second group of pipes includes two refrigeration pipelines and two cold control valves, the two refrigeration pipelines connect two ports of the outdoor heat exchanger 40 to two pipes of two ports of the second heat exchanger 12 respectively; the two cold control valves are respectively connected into the cold quantity pipelines respectively corresponding to the two cold control valves; the outdoor heat exchanger 40 is controlled to be communicated with or disconnected from the second heat exchanger 12 in parallel by controlling the opening or closing of the two cold control valves in a linkage mode. As shown in fig. 1, two cold energy pipelines are respectively marked as a cold energy pipeline i 421 and a cold energy pipeline ii 422, two cold control valves are respectively marked as a cold control valve i 423 and a cold control valve ii 424, the cold energy pipeline i 421 communicates a first port of the outdoor heat exchanger 40 with a first port of the second heat exchanger 12, and the cold control valve i 423 is connected to the cold energy pipeline i 421; the cold quantity pipeline II 422 is communicated with the second port of the outdoor heat exchanger 40 and the second port of the second heat exchanger 12, and the cold control valve II 424 is connected to the cold quantity pipeline II 422.
In some embodiments, the heat pump integrated system further includes a strong cold output unit, including a strong cold output interface 51, where the strong cold output interface 51 is connected to the refrigeration cycle unit 10 in parallel with the second heat exchanger 12, and is used for communicating with the terminal 73 heat exchanger device requiring strong cold. In this embodiment, the forced cooling terminal 73 needs to be below zero for the temperature of the refrigerated space, for example, the forced cooling terminal 73 includes a refrigerator, an ice chest, or other refrigeration equipment that needs a freezing function.
In this embodiment, the strong cooling output interface 51 includes a strong cooling inflow port and a strong cooling outflow port, which are respectively connected to the pipelines at two ends of the second heat exchanger 12 through the communication pipelines. As shown in fig. 1, the forced cooling inflow port is connected to the pipe line of the first end of the second heat exchanger 12 through a first communication pipe line 52, and the forced cooling outflow port is connected to the pipe line of the second end of the second heat exchanger 12 through a second communication pipe line 53.
In the embodiments of the present disclosure, the term "interface" refers to a device that includes two ports, one being an inflow port and the other being an outflow port.
With reference to fig. 5, an embodiment of the present disclosure provides a method for controlling a heat pump integrated system with a cold source and a heat source, including:
s110, acquiring total heat demand according to the heat demand of each heat demand terminal 71; and acquiring the total cooling capacity according to the cooling capacity of each cooling capacity terminal 72.
The amount of heat required by each heat-requiring terminal 71 is obtained from the operating parameters set by the user for each heat-requiring terminal 71, and the amount of heat required by each cold-requiring terminal 72 is obtained from the operating parameters set by the user for each cold-requiring terminal 72.
And S120, controlling the first pipeline group to be conducted under the condition that the total cooling demand is greater than the total heat demand, and connecting the outdoor heat exchanger 40 into the refrigeration cycle unit 10 and connecting the outdoor heat exchanger and the first heat exchanger in parallel. Here, the outdoor heat exchanger 40 operates in parallel with the first heat exchanger 11, and discharges the surplus heat. The operation line of the heat pump integrated system in this case is as shown in fig. 3, and the heat pump integrated system in this case is defined as a main cooling operation mode.
And under the condition that the total cooling demand is less than the total heat demand, controlling the conduction of the second pipeline group, and connecting the outdoor heat exchanger 40 into the refrigeration cycle unit 10 and connecting the outdoor heat exchanger in parallel with the second heat exchange. Here, the outdoor heat exchanger 40 is operated in parallel with the second heat exchanger 12, and discharges excessive cooling energy. The operation of the heat pump integrated system in this case is as shown in fig. 2, and the heat pump integrated system in this case is defined as the main heat operation mode.
And under the condition that the total cooling demand is equal to the total heat demand, keeping the first pipeline group and the second pipeline group closed, and controlling the refrigeration cycle unit 10 to operate. Here, in the case where the total cooling demand is balanced with the total heat demand, the additional outdoor heat exchanger 40 is not required, and only the first heat exchanger 11 and the second heat exchanger 12 of the refrigeration cycle unit 10 can satisfy the cold-heat balance. The operation line of the heat pump integrated system in this case is shown in fig. 4.
And S130, controlling the refrigeration cycle unit 10 to start and operate according to the total heat demand or the total cold demand with large demand. The refrigeration cycle unit 10 requires a large total amount of heat or cold as the energy. Of course, in the case that the total cooling demand is equal to the total heat demand, the total heat demand or the total cooling demand can be used as the functional demand.
In the embodiment of the present disclosure, whether the outdoor heat exchanger 40 is introduced and the parallel connection mode thereof are determined by determining the total heat demand and the total cooling demand, so as to realize the cold-heat balance of the heat pump integrated system.
In some embodiments, the method for integrated cold heat source heat pump system control further comprises: according to the heat demand of each heat demand terminal 71, adjusting the heat exchange amount of the heat output interface 22 corresponding to each heat output unit 20; the heat exchange amount of the cold output interface 32 corresponding to each cold output terminal 30 is adjusted according to the heat demand amount of each cold demand terminal 72. In particular, the adjustment of the heat exchange amount can be realized by control valves provided on the respective interfaces.
In some embodiments, the cold output interface 32 is in communication with an air conditioning heat exchanger and the hot output interface 22 is in communication with an air conditioning heat exchanger; when the air conditioner operates in the cooling mode, the heat output interface 22 is controlled to be opened according to the indoor humidity. Here, when the air conditioner is in cooling operation, the cold output interface 32 is communicated with the air conditioner heat exchanger, so as to ensure the cooling requirement. Meanwhile, according to the judgment of the indoor humidity, the heat output interface 22 is properly opened, so that the heating effect on the air is achieved, and the dehumidification function is enhanced.
In this embodiment, the indoor unit of the air conditioner includes two heat exchangers, and the two heat exchangers are respectively communicated with the cold output interface 32 and the heat output interface 22. When the control method is realized, the heat output interface 22 of the heat exchanger close to the air inlet side is controlled to be opened. Therefore, the air entering the heat exchanger close to the air outlet side is pre-dried, and the dehumidification function is enhanced.
As shown in fig. 6, an apparatus for controlling a heat pump integrated system with a cold source and a heat source according to an embodiment of the present disclosure includes a processor (processor)80 and a memory (memory) 81. Optionally, the apparatus may also include a Communication Interface 82 and a bus 83. The processor 80, the communication interface 82 and the memory 81 can communicate with each other through the bus 83. Communication interface 82 may be used for information transfer. The processor 80 may call the logic instructions in the memory 81 to execute the method for controlling the heat pump integrated system of the cold and heat source according to the above embodiment.
In addition, the logic instructions in the memory 81 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 81 is a computer readable storage medium, and can be used for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 80 executes functional applications and data processing by executing program instructions/modules stored in the memory 81, namely, implements the method for controlling the cold and hot source heat pump integrated system in the above embodiment.
The memory 81 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 81 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the present disclosure provides a cold-heat source heat pump integrated system, which includes the above-mentioned device for controlling the cold-heat source heat pump integrated system.
The cold and heat source heat pump integrated system of the embodiment of the present disclosure further includes the cold and heat source heat pump integrated system of any one of the foregoing embodiments.
The embodiment of the disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the method for controlling a heat pump integrated system of a cold and heat source.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described method for cold-heat source heat pump integrated system control.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A cold-heat source heat pump integrated system, comprising:
a refrigeration cycle unit including a first heat exchanger and a second heat exchanger;
the heat output unit comprises a heat exchange end and a plurality of heat output interfaces, the heat exchange end realizes heat exchange with the first heat exchanger, and the plurality of heat output interfaces are used for being communicated with the heat exchange device of the heat-requiring terminal;
the cold output unit comprises a cold exchange end and a plurality of cold output interfaces, the cold exchange end realizes heat exchange with the second heat exchanger, and the plurality of cold output interfaces are used for being communicated with the terminal heat exchanger needing cold;
the outdoor heat exchanger is connected with the first heat exchanger in parallel through a first pipeline group and connected with the second heat exchanger in parallel through a second pipeline group; and the outdoor heat exchanger is connected into the refrigeration cycle unit in parallel by switching on the first pipeline group or the second pipeline group.
2. The cold-heat source heat pump integrated system according to claim 1,
the first pipe group includes:
the two heat pipelines are used for respectively communicating two ports of the outdoor heat exchanger to pipelines of two ports of the first heat exchanger;
two heat control valves respectively connected to the corresponding heat pipelines;
and the outdoor heat exchanger and the first heat exchanger are controlled to be communicated or cut off in parallel by controlling the opening or closing of the two heat control valves in a linkage manner.
3. The cold-heat source heat pump integrated system according to claim 1, wherein the second piping group comprises:
the two cold energy pipelines are used for respectively communicating the two interfaces of the outdoor heat exchanger to the pipelines of the two ports of the second heat exchanger;
the two cold control valves are respectively connected into the corresponding cold quantity pipelines;
and the cold control valves are controlled to be opened or closed in a linkage manner, so that the outdoor heat exchanger and the second heat exchanger are controlled to be communicated in parallel or cut off.
4. The cold-heat source heat pump integrated system according to claim 1, 2 or 3, further comprising:
and the strong cold output unit comprises a strong cold output interface, and the strong cold output interface is connected into the refrigeration cycle unit in a parallel connection mode with the second heat exchanger and is used for being communicated with a terminal heat exchange device needing strong cold.
5. The cold-heat source heat pump integrated system according to claim 1, 2 or 3,
the heat output unit comprises a fluid medium circulation output unit; and/or the cold output unit comprises a fluid medium circulation output unit.
6. The cold-heat source heat pump integrated system according to claim 5, further comprising:
and the fluid replenishing device is used for replenishing a fluid medium for the heat output unit and/or the cold output unit.
7. A method for the control of the cold-heat source heat pump integrated system as claimed in any one of claims 1 to 6, comprising:
acquiring total heat demand according to the heat demand of each heat demand terminal;
acquiring total cold demand according to the cold demand of each cold demand terminal;
controlling the first pipeline set to be conducted under the condition that the total cooling demand is greater than the total heat demand, and connecting the outdoor heat exchanger into the refrigeration cycle unit and connecting the outdoor heat exchanger with the first heat exchanger in parallel;
controlling the second pipeline set to be conducted under the condition that the total cooling demand is smaller than the total heat demand, and connecting the outdoor heat exchanger into the refrigeration cycle unit and connecting the outdoor heat exchanger with the second heat exchanger in parallel;
under the condition that the total cooling demand is equal to the total heat demand, keeping the first pipeline group and the second pipeline group closed, and controlling the refrigeration cycle unit to operate;
and controlling the refrigeration cycle unit to start and operate according to the total heat demand or the total cold demand with large demand.
8. The method for cold-heat source heat pump integrated system control of claim 7, further comprising:
adjusting the heat exchange quantity of the corresponding heat output interfaces in the heat output unit according to the heat demand quantity of each heat demand terminal;
and adjusting the heat exchange quantity of the cold output interfaces corresponding to the cold output units according to the heat quantity required by each cold terminal.
9. An apparatus for cold-heat source heat pump integrated system control, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the method for cold-heat source heat pump integrated system control of claim 7 or 8 when executing the program instructions.
10. A cold-heat source heat pump integrated system, characterized by comprising the device for controlling a cold-heat source heat pump integrated system according to claim 9.
CN202110886600.2A 2021-08-03 2021-08-03 Cold and heat source heat pump integrated system and method and device for controlling same Active CN113654139B (en)

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