CN109764515B - Energy system, control method thereof and storage medium - Google Patents
Energy system, control method thereof and storage medium Download PDFInfo
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- CN109764515B CN109764515B CN201910019223.5A CN201910019223A CN109764515B CN 109764515 B CN109764515 B CN 109764515B CN 201910019223 A CN201910019223 A CN 201910019223A CN 109764515 B CN109764515 B CN 109764515B
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 74
- 238000004891 communication Methods 0.000 claims description 45
- 230000003750 conditioning effect Effects 0.000 claims description 16
- 230000001276 controlling effect Effects 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
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- 238000010438 heat treatment Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
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- 238000010521 absorption reaction Methods 0.000 description 3
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- 230000008014 freezing Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses an energy system, a control method thereof and a storage medium, and belongs to the field of energy. The method comprises the following steps: a first thermal regulating device and a second thermal regulating device; a first evaporator of the first heat regulating equipment is communicated with a second evaporator of the second heat regulating equipment in a heat exchange mode through a first intermediate heat exchanger; and the first condenser of the first heat regulating device is communicated with the second condenser of the second heat regulating device in a heat exchange mode through the second intermediate heat exchanger. According to the energy system provided by the embodiment of the invention, waste energy among different heat regulating devices is comprehensively utilized, so that the energy consumption and waste are reduced, and the energy conservation and emission reduction are realized.
Description
Technical Field
The present invention relates to the field of energy technologies, and in particular, to an energy system, a control method thereof, and a storage medium.
Background
In a general home environment, there are a plurality of home appliances, and the plurality of types of home appliances often have different functions and are all related to heat conversion. For example, when an indoor unit of an air conditioner is refrigerating, the outdoor unit can dissipate heat at the same time, and similarly, a water heater also needs to consume electric energy or dissipate heat when refrigerating, and on the other hand, the water heater needs to heat hot water and also consumes electric energy; in winter, the air conditioner needs to heat and can release part of cold energy. Some need heat, some give off heat, some need refrigeration, some give off cold volume, consequently, caused very big energy waste.
In the heating mode air conditioner, the condenser outputs heat for heating the indoor environment, and the evaporator outputs cold as waste cold to be dissipated through air. The evaporator of the refrigerator outputs cold for freezing or refrigerating food, and the condenser of the refrigerator outputs heat as waste heat to be dissipated through air. How to realize energy allocation between an air conditioner and a refrigerator, reduce energy consumption and waste and realize energy conservation and emission reduction is a problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention provides an energy system, a control method thereof and a storage medium. 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 and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided an energy source system comprising a first heat regulating device and a second heat regulating device;
the first evaporator of the first heat regulating device is communicated with the second evaporator of the second heat regulating device in a heat exchange mode through a first intermediate heat exchanger;
and the first condenser of the first heat regulating device is communicated with the second condenser of the second heat regulating device in a heat exchange mode through a second intermediate heat exchanger.
In some optional embodiments, the first intermediate heat exchanger is arranged in series on a communication path for heat exchange between the first evaporator of the first heat conditioning unit and the second evaporator of the second heat conditioning unit; the second intermediate heat exchanger is arranged on a communication passage for heat exchange between the first condenser of the first heat regulating device and the second condenser of the second heat regulating device in series. The method comprises the following steps:
in some optional embodiments, the first intermediate heat exchanger and the second intermediate heat exchanger, denoted as a first intermediate heat exchanger, include:
the energy input end is communicated with a second condenser of the second heat regulating device or a first evaporator of the first heat regulating device;
the energy output end is communicated with the first condenser of the first heat regulating device or the second evaporator of the second heat regulating device;
and the conduction valves are arranged on the passage of the energy input end and the passage of the energy output end.
In some optional embodiments, the first intermediate heat exchanger and the second intermediate heat exchanger, which are referred to as a second intermediate heat exchanger, further include:
the input end and the output end are arranged at two ends of the unidirectional heat conduction device.
In some optional embodiments, the communication path of the heat exchange between the first evaporator of the first heat regulating device and the second evaporator of the second heat regulating device is connected in series with the first intermediate heat exchanger and in parallel with the second intermediate heat exchanger; and/or the presence of a gas in the gas,
and a communication passage for heat exchange between the first condenser of the first heat regulating device and the second condenser of the second heat regulating device is connected with the first transfer heat exchanger in series and connected with the second transfer heat exchanger in parallel.
In some optional embodiments, the system further comprises a switching device, wherein the switching device is arranged at a connecting interface of the second type of intermediate heat exchanger connected in parallel and is used for switching a communication passage between the first evaporator and the second evaporator;
the switching device is arranged at a connecting interface of the second transfer heat exchanger in parallel connection and is used for switching a communication passage between the first condenser and the second condenser.
In some optional embodiments, the system further comprises a control device, configured to control the heat exchange amount of the first intermediate heat exchanger according to the temperature of the first evaporator of the first heat regulating device and the temperature of the second evaporator of the second heat regulating device; and the heat exchange quantity of the second transfer heat exchanger is controlled according to the temperature of the first condenser of the first heat regulating device and the temperature of the second condenser of the second heat regulating device.
According to a second aspect of the embodiments of the present invention, there is provided a control method of an energy system, including:
controlling the opening degree of a conducting valve of the first intermediate transfer heat exchanger according to the temperature of a first evaporator of the first heat regulating device and the temperature of a second evaporator of the second heat regulating device;
and controlling the opening degree of a conducting valve of the second intermediate heat exchanger according to the temperature of the first condenser of the first heat regulating device and the temperature of the second condenser of the second heat regulating device.
In some optional embodiments, the control method further includes:
when the first evaporator and the second evaporator can not exchange heat in a set direction, the first evaporator and the second evaporator are switched to be communicated through a second transfer heat exchanger;
when the first condenser and the second condenser can not exchange heat in a set direction, the first condenser and the second condenser are switched to be communicated through a second transfer heat exchanger.
According to a third aspect of embodiments of the present invention, there is provided a storage medium having stored thereon a computer program which, when executed by a processor, implements the aforementioned control method of an energy system.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the energy system provided by the embodiment of the invention, waste energy among different heat regulating devices is comprehensively utilized, so that the energy consumption and waste are reduced, and the energy conservation and emission reduction are realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of an energy system according to an exemplary embodiment;
FIG. 2 is a schematic diagram of an energy system according to an exemplary embodiment;
FIG. 3 is a schematic diagram of an energy system according to an exemplary embodiment;
FIG. 4 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 5 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 6 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 7 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 8 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 9 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 10 is a schematic diagram of a construction of a relay heat exchanger according to an exemplary embodiment;
FIG. 11 is a schematic diagram of a relay heat exchanger according to an exemplary embodiment
Fig. 12 is a block flow diagram illustrating a method of controlling an energy system in accordance with an exemplary embodiment;
fig. 13 is a block flow diagram illustrating a method of controlling an energy system according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention 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. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. 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. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
Referring to fig. 1 to 3, illustrating a first aspect of an embodiment of the present invention, an energy system includes a first heat regulating device 40 and a second heat regulating device 50;
the first evaporator 41 of the first heat quantity adjusting device 40 and the second evaporator 51 of the second heat quantity adjusting device 50 are in heat exchange communication through a first relay heat exchanger (a first relay heat exchanger 20 or a second relay heat exchanger 30 described below);
the first condenser 42 of the first heat conditioning device 40 is in heat exchange communication with the second condenser 52 of the second heat conditioning device 50 through a second intermediate heat exchanger (the first intermediate heat exchanger 20 or the second intermediate heat exchanger 30 described below).
Wherein the first intermediate heat exchanger is used to transfer heat to and from each other between the first evaporator 41 and the second evaporator 51, and the second intermediate heat exchanger is used to transfer heat to and from each other between the first condenser 42 and the second condenser 52.
According to the energy system provided by the embodiment of the invention, waste energy among different heat regulating devices is comprehensively utilized, so that the energy consumption and waste are reduced, and the energy conservation and emission reduction are realized. And heat exchange from the first heat regulating device to the second heat regulating device is realized.
Alternatively, as shown in fig. 1 and 2, the first heat regulating device 40 is an air conditioner in a heating mode, and the second heat regulating device 50 is a refrigerator. The cold energy output by the first evaporator 41 of the air conditioner 40 exchanges heat with the second evaporator 51 of the refrigerator 50 through the first intermediate heat exchanger, and is used for freezing or refrigerating food stored in the refrigerator. The heat output from the second condenser 52 of the refrigerator 50 exchanges heat with the first condenser 42 of the air conditioner 40 through the second intermediate heat exchanger, for heating the indoor air. The air conditioner can be a household air conditioner, or a central air conditioning system of a building, or a central air conditioning system of a whole community, or other forms of air conditioners. The refrigerator may be a refrigerator product, a freezer, or other form of food freezing or refrigeration system. Of course, the first heat quantity adjusting apparatus 40 may be a refrigerator, and the second heat quantity adjusting apparatus 50 may be an air conditioner in a heating mode.
In the embodiment of the present invention, as shown in fig. 1 and fig. 2, the heat exchange (cooling capacity exchange) between the evaporators and the heat exchange (heat exchange) between the condensers are realized by using the relay heat exchangers (collectively called a first relay heat exchanger and a second relay heat exchanger). In an alternative embodiment, a first intermediate heat exchanger is provided in series on the communication path of heat exchange between the first evaporator 41 of the first heat conditioning device 40 and the second evaporator 51 of the second heat conditioning device 50; the second intermediate heat exchanger is disposed in series on a communication path of heat exchange between the first condenser 42 of the first heat conditioning device 40 and the second condenser 52 of the second heat conditioning device 50.
In an alternative embodiment, taking the air conditioner in the heating mode of the first heat regulating device 40 and the second heat regulating device 50 as a refrigerator as an example, the first cooling heat exchanging device is disposed on the first evaporator 41 side of the air conditioner, and the second cooling heat exchanging device is disposed on the second condenser 52 side of the refrigerator. The communication pipeline at the input end of the first transfer heat exchanger is communicated with the communication pipeline of the first cold energy heat exchange device, and the communication pipeline at the output end is communicated with the second evaporator 51 of the refrigerator. In this case, the second evaporator 51 of the refrigerator may be an evaporator in the refrigerator, which is in communication with the compressor of the refrigerator, or may be an additional evaporator (which is provided in the cooling chamber of the refrigerator and may not be in communication with the compressor). And the communicating pipeline of the input end of the second transfer heat exchanger and the communicating pipeline of the second heat exchange device at the refrigerator side are communicated, and the communicating pipeline of the output end is communicated with the first condenser 42 of the air conditioner. In this case, the first condenser 42 of the air conditioner may be a condenser in the air conditioner that communicates with the compressor, or may be an additional condenser (provided in the air duct of the air conditioner and not communicating with the compressor).
A first relay heat exchanger and a second relay heat exchanger, collectively referred to as a relay heat exchanger, according to an embodiment of the present invention will be described below with reference to fig. 4 to 11. Both are identical in structure and function, and are defined as a first intermediate heat exchanger and a second intermediate heat exchanger only for the sake of distinction. The intermediate heat exchanger is divided into a first intermediate heat exchanger 20 and a second intermediate heat exchanger 30 according to whether the intermediate heat exchanger is provided with the unidirectional heat conduction device 31.
As shown in fig. 4 to 9, the first intermediate heat exchanger 20 includes,
an energy input end 201 for communicating a heat storage device or a cold storage device/a heat regulating device;
an energy output end 202 for communicating with a thermal regulation device/thermal storage device or a cold storage device; and
and the conducting valves are arranged on the path of the energy input end 201 and the path of the energy output end 202.
In an alternative embodiment, the conducting valves include an input conducting valve 231 and an output conducting valve 232, the input conducting valve 231 is serially connected to the pipeline of the energy input 201, and the output conducting valve 232 is serially connected to the pipeline of the energy output 202. The purpose of the on-state valves is to control the opening or closing of the energy input 201 and the energy output 202. In a specific embodiment, an input end and input end conduction valve 231 is disposed on the liquid inlet pipe and the liquid outlet pipe of each energy input end 201 (each heat exchange device), and an output end conduction valve 232 is disposed on the liquid inlet pipe and the liquid outlet pipe of each energy output end 202 (each heat exchange device). The opening and closing control, the flow control and the energy transfer regulation of the communication pipelines of the energy input end 201 and the energy output end 202 of the first intermediate heat exchanger 20 are respectively realized through the control of the respective conduction valves, and the heat exchange between the first heat regulating device 40 and the second heat regulating device 50 can be controlled according to the actual situation.
An energy input terminal 201 for inputting the cold (or heat) at the side of the first evaporator 41 (or the second condenser 52). The specific structure adopted is various, for example, a fluid medium is used as a carrier, the energy input end 201 is communicated with the heat exchange device on the side of the first evaporator 41 (or the second condenser 52) through a pipeline by using a heat exchange device, the fluid medium absorbs cold (or heat) on the side of the first evaporator 41 (or the second condenser 52), the fluid medium flows to the energy input end 201, and the energy input end 201 exchanges heat with the medium fluid of the energy output end 202, so that the energy is converted to the energy output end 202.
In an alternative embodiment, the energy input end 201 is embodied by a heat exchange device, such as a plate heat exchanger, an evaporator, or a heat exchange coil. The energy output end 202 is specifically a heat exchange device, such as a plate heat exchanger, a condenser, or a heat exchange coil.
In the relay heat exchanger according to the embodiment of the present invention, the number of the energy input ends 201 and the energy output ends 202, and the arrangement of the external connection pipeline sets of the energy input ends 201 and the energy output ends 202 may be determined according to the number of the evaporators and the condensers on the connection side, and other factors.
In an alternative embodiment, the energy input ends 201 of the first intermediate heat exchanger 20 in the embodiment of the present invention are one or more, and the pipeline of each energy input end 201 is independently arranged. For example, the energy input end 201 includes one (as shown in fig. 4, 5 and 9) or more (see the energy output end 202 of the relay heat exchanger 20 in fig. 7) third heat exchange devices, each of which has an inlet pipe 211 and an outlet pipe 212 (i.e., a group of communicating pipe groups 21), and is communicated with the first evaporator 41 through two pipes, specifically, with the first cold heat exchange device on the side of the first evaporator 41, or is communicated with the second condenser 52 through two pipes, specifically, with the second heat exchange device on the side of the second condenser 52. The cold on the side of the first evaporator 41 or the heat on the side of the second condenser 52 is transferred to the energy input 201 by means of a fluid medium. That is, each third heat exchange means is independently communicated with each first evaporator 41 (or each second condenser 52). For another example, as shown in fig. 6 and 8, the energy input end 201 is a third heat exchange device, and the liquid inlet end of the third heat exchange device is communicated with a plurality of liquid inlet pipes 211, and the liquid outlet end of the third heat exchange device is communicated with a plurality of liquid outlet pipes 212. One liquid inlet pipe 211 and one liquid outlet pipe 222 are formed as one communication pipe group 21 into a plurality of independent communication pipe groups, and are respectively communicated with each first evaporator 41 (or each second condenser 52) through the plurality of independent communication pipe groups.
In another alternative embodiment, the number of the energy input ends 201 is multiple, and the pipelines of the multiple energy input ends 201 are communicated with each other. The communication may be achieved in many ways, as long as a plurality of energy input terminals are all in communication with the energy discharge terminal 102 of the energy storage station 10. For example, as shown in fig. 7, the plurality of energy input ends 201 are communicated with the liquid outlet transit pipe 222 through the liquid inlet transit pipe 221, the liquid inlet pipe 211 of each energy input end 201 is communicated with the liquid inlet transit pipe 221, and the liquid outlet pipe 212 of each energy input end 201 is communicated with the liquid outlet transit pipe 222. And then the liquid inlet transit pipeline 221 and the liquid outlet transit pipeline 222 are used as a communicating pipeline group and are communicated with the first evaporator 41 (or each second condenser 52) through two pipelines.
Similarly, when there are one or more energy output ends 202, the pipeline of each energy output end 202 is independently arranged in the same manner as the energy input end 201. When there are a plurality of energy output ends 202, the pipelines of the energy output ends 202 are communicated with each other in the same way as the energy input end 201. And will not be described in detail herein.
In the first relay heat exchanger according to the embodiment of the present invention, the following specific embodiments are provided according to the arrangement of the pipelines of the energy input end 202 and the heat exchange end 202.
As shown in fig. 4, in the first relay heat exchanger i, one energy input end 201 is provided with a communicating pipe set; the number of the energy output ends 202 is plural, and the communicating pipe groups of the plural energy output ends 202 are independently arranged. That is, the conduits of the energy input 201 and the energy output 202 are independently arranged. One path is converted into multiple paths.
As shown in fig. 5, in the first intermediate heat exchanger ii, there is one energy input end 201, and there is one communicating pipe set; one energy output 202 is provided, and one energy output 202 has a plurality of independently arranged communicating pipe groups. That is, the conduits of the energy input 201 and the energy output 202 are independently arranged. One path is converted into multiple paths.
As shown in fig. 6, in the first relay heat exchanger iii, there is one energy input end 201, and one energy input end 201 has a plurality of independently arranged communicating pipe sets; the energy output 202 is one, having one communicating tube bank. That is, the conduits of the energy input 201 and the energy output 202 are independently arranged. And (4) converting the multiple paths into one path.
As shown in fig. 7, in the first intermediate heat exchanger v, a plurality of energy input ends 201 are provided, and the plurality of energy input ends 201 are communicated with each other and communicated with a heat exchange device on the side of the energy storage station 10 (or the absorption end temperature regulating device 1011) by a group of communicating pipe sets; the number of the energy output ends 202 is plural, and the communicating pipe groups of the plural energy output ends 202 are independently arranged. That is, the pipelines of the plurality of energy input terminals 201 communicate with each other, and the pipelines of the plurality of energy output terminals 202 are independently provided. One path is converted into multiple paths.
As shown in fig. 8, in the first intermediate heat exchanger iv, one energy input end 201 is provided, and one energy input end 201 has a plurality of independently arranged communicating pipe sets; one energy output 202 is provided, and one energy output 202 has a plurality of independently arranged communicating pipe groups. That is, the conduits of the energy input 201 and the energy output 202 are independently arranged. And (4) multiplexing the multiple paths.
As shown in fig. 9, in the first intermediate heat exchanger vi, there is one energy input end 201, and there is one communicating pipe set; the energy output 202 is one, having one communicating tube bank. That is, the conduits of the energy input 201 and the energy output 202 are independently arranged. One path is changed into another path.
Of course, the structures of the first intermediate heat exchanger 20 according to the embodiment of the present invention are not limited to the above six structures, and the structures of the energy input end 201 and the energy output end 202 may be interchanged and may be combined arbitrarily. In practical application, the structure of the adaptive intermediate heat exchanger is selected. In addition, when the communication pipe groups of the energy input end 201 (or the energy output end 202) of the first intermediate heat exchanger 20 are plural, the number is not limited, and may be determined according to the number of the first evaporators 41 (or each second condenser 52) to be connected.
In the first relay heat exchanger 20 according to the embodiment of the present invention, the heat exchange device of the energy input end 201 and the heat exchange device of the energy output end 202 may be separately arranged, for example, when a plate heat exchanger is adopted, the two heat exchange devices are oppositely arranged (may be contacted or not contacted), so as to ensure the heat exchange area to be maximized; when the heat exchange coil is adopted, the coil parts of the heat exchange coil and the heat exchange coil are arranged in a staggered mode (can be contacted or not contacted), and effective heat exchange is guaranteed. Alternatively, the heat exchange device of the energy input end 201 and the heat exchange device of the energy output end 202 are designed into a whole. The arrangement mode is not limited, and it is only required to realize that the heat exchange device of the energy input end 201 and the heat exchange device of the energy output end 202 can perform heat transfer. As shown in fig. 4 to 9, the energy input end 201 and the energy output end 202 are all in a contactless type heat exchange device structure that is oppositely arranged, although the first intermediate heat exchanger according to the embodiment of the present invention is not limited to the structure shown in the drawings.
The energy input end 201 and the energy output end 202 of the first relay heat exchanger 20 according to the embodiment of the present invention have the same structure when the heat exchange manner is the same, and the two structures can be used interchangeably, which is only convenient for distinguishing and defining.
As shown in fig. 10 and 11, the second intermediate heat exchanger 30 includes:
the energy input end I301 is communicated to a second condenser of the second heat regulating device or a first evaporator of the first heat regulating device;
an energy output end I302 which is communicated to a first condenser of the first heat regulating device or a second evaporator of the second heat regulating device;
the conduction valves are arranged on a passage of the energy input end I301 and a passage of the energy output end I302; and the combination of (a) and (b),
the unidirectional heat conduction device 31, the energy input end I301 and the energy output end I302 are arranged at two ends of the unidirectional heat conduction device 31.
In the second intermediate heat exchanger 30 according to the embodiment of the present invention, by adding the unidirectional heat conducting device 31, when the first evaporator 41 exchanges cooling capacity with the second evaporator 51, more accurate cooling capacity transfer can be provided to the second evaporator 51 according to the target parameter (e.g., the target temperature) of the second evaporator 51. In addition, the present invention is also applicable to a case where energy transmission in a predetermined direction is not possible between the first evaporator 41 and the second evaporator 51 (or between the second condenser 52 and the first condenser 42). In general, heat transfer is performed only from the higher temperature end to the lower temperature end, for example, if the heat exchange direction between the second condenser 52 and the first condenser 42 is set such that the second condenser 52 exchanges heat with the first condenser 42, and if the medium temperature itself on the second condenser 52 side is lower than the medium temperature itself on the first condenser 42 side, the heat exchange cannot be performed in the set direction, but rather, heat loss on the first condenser 42 side occurs, and the opposite effect is achieved. The same problem is encountered when cold is exchanged between evaporators. Therefore, the embodiment of the present invention provides the second intermediate heat exchanger 30, which utilizes the unidirectional heat conduction device 31 to adjust the medium temperature guided to the equipment from the heat (cold) storage station, so that it can provide accurate energy transfer; alternatively, the energy exchange can be performed normally in the set direction by the cold energy transfer between the first evaporator 41 and the second evaporator 51 and the heat energy transfer between the first condenser 42 and the second condenser 52.
The second intermediate heat exchanger 30 of the embodiment of the present invention is based on the first intermediate heat exchanger 20, and a unidirectional heat conducting device 31 is added between the energy input end and the energy output end. Therefore, the energy input terminal i 301 and the energy output terminal i 302 of the second intermediate heat exchanger 30 are structurally configured and function the same as the energy input terminal 201 and the energy output terminal 202 of the first intermediate heat exchanger 20, and an input terminal conduction valve and an output terminal conduction valve are also respectively configured on the energy input terminal i 301 and the energy output terminal i 302, which are the same as the first intermediate heat exchanger 20. Reference is made to the foregoing for details, which are not repeated herein.
Therefore, according to the structures of the first transfer heat exchanger i to the first transfer heat exchanger vi as shown in fig. 4 to 9, the unidirectional heat conduction device 31 is added between the energy input end and the energy output end, so that the second transfer heat exchanger i to the second transfer heat exchanger vi with the energy input end and the energy output end corresponding to each other can be sequentially obtained. The second intermediate heat exchanger ii 30 shown in fig. 10 is obtained by adding the unidirectional heat transfer device 31 to the first intermediate heat exchanger ii 20, and the second intermediate heat exchanger vi 30 shown in fig. 11 is obtained by adding the unidirectional heat transfer device 31 to the first intermediate heat exchanger vi 20.
In the second intermediate heat exchanger 30 according to the embodiment of the present invention, the unidirectional heat conducting device 31 realizes (forcibly) heat exchange from the energy input end i 301 to the energy output end i 302. Specifically, a refrigerant heat exchanger or a semiconductor temperature regulator may be used.
In an alternative embodiment, as shown in fig. 10 and 11, the refrigerant heat exchanger includes an evaporator 311, a compressor (not shown), a condenser 312 and an expansion valve (not shown), which are connected to form a heat exchange loop. The second intermediate heat exchanger 30 includes two heat-absorbing chambers 303 and two heat-releasing chambers 304 which are arranged in a heat-insulating manner; the evaporator 311 is arranged opposite to the energy input end i 301 of the second intermediate heat exchanger 30 and is arranged in the heat absorption chamber 303; the condenser 312 is disposed opposite to the power output terminal i 302 of the second intermediate heat exchanger 30 and is disposed in the heat releasing chamber 304.
In another optional embodiment, the semiconductor temperature regulator comprises a semiconductor refrigeration piece, a first end heat exchanger arranged at a first end of the semiconductor refrigeration piece, a second end heat exchanger arranged at a second end of the semiconductor refrigeration piece, and a power supply device. The power supply device is used for supplying electric energy to the semiconductor refrigeration piece. By controlling the direction of the power supply current, the first end and the second end of the semiconductor refrigeration chip can be switched between two modes of heat generation and cold generation. For example, at a forward current, the first end is a cold end and the second end is a hot end; after the current direction is switched, the first end is switched to be the hot end, and the second end is switched to be the cold end. The second intermediate heat exchanger 30 includes two heat-absorbing chambers 303 and two heat-releasing chambers 304 which are arranged in a heat-insulating manner; the first end heat exchanger is arranged opposite to the energy input end I301 of the second intermediate heat exchanger 30 and is arranged in the heat absorption chamber 303; the second end heat exchanger is disposed opposite to the power output end i 302 of the second intermediate heat exchanger 30 and is disposed in the heat release chamber 304. And determining that the first end heat exchanger is a hot end (or a cold end) and the second end heat exchanger is a cold end (or a hot end) according to actual conditions.
In an alternative embodiment, as shown in fig. 3, in an energy system i, a first intermediate heat exchanger is connected in series to a communication path of heat exchange between a first evaporator 41 of a first heat conditioning device 40 and a second evaporator 51 of a second heat conditioning device 50, and is connected in parallel to a second intermediate heat exchanger; and/or, a first intermediate heat exchanger is connected in series to a communication path of heat exchange between the first condenser 42 of the first heat regulating device 40 and the second condenser 52 of the second heat regulating device 50, and a second intermediate heat exchanger is connected in parallel to the communication path of heat exchange. As shown in fig. 3, a communication pipe 401 between the first evaporator 41 and the second evaporator 51 is connected to the first intermediate heat exchanger 20 for one-to-one conversion, and a communication pipe between an input end and an output end of the first intermediate heat exchanger 20 is connected to the second intermediate heat exchanger 30 in parallel. And a switching device is arranged at the interface connected in parallel and used for switching the communication between the first evaporator 41 and the second evaporator 51 through the first intermediate heat exchanger 20 or the second intermediate heat exchanger 30. Of course, the parallel position of the second intermediate heat exchanger is not limited as long as it can be configured to be parallel to the first intermediate heat exchanger 20. Similarly, the connection modes of the first intermediate heat exchanger 20 and the second intermediate heat exchanger 30 between the first condenser 42 and the second condenser 52 are the same, and are not described again.
In a further alternative embodiment, the switching device is further included, and the structure of the switching device is not limited as long as the switching function is achieved. The switching device is arranged at a connecting interface of the second transfer heat exchanger connected in parallel and used for switching a communication passage between the first evaporator and the second evaporator; and the switching device is arranged at a connecting interface of the second transfer heat exchanger in parallel connection and is used for switching a communication passage between the first condenser and the second condenser. The communication passage between the first evaporator and the second evaporator has two states, the first state is that the first evaporator and the second evaporator are communicated in a heat exchange mode through the first intermediate heat exchanger, and the second state is that the first evaporator and the second evaporator are communicated in a heat exchange mode through the second intermediate heat exchanger. Similarly, the communication path between the first condenser and the second condenser has the above two states.
Alternatively, the switching device is a control valve group including two valves, a liquid inlet control valve 161 and a liquid return control valve 162, and switching between the communication between the first evaporator 41 and the second evaporator 51 (or between the first condenser 42 and the second condenser 52) through the first relay heat exchanger or the communication through the second relay heat exchanger is realized by switching between a first state of blocking the parallel connection pipeline of the second relay heat exchanger 30 and a second state of blocking the connection pipeline of the first relay heat exchanger 20.
In an alternative embodiment, the energy system further comprises a control device for controlling the opening degree of the conducting valve of the first intermediate heat exchanger according to the temperature of the first evaporator 41 of the first heat regulating device 40 and the temperature of the second evaporator 51 of the second heat regulating device 50; and a control unit for controlling the opening degree of the conduction valve of the second intermediate heat exchanger according to the temperature of the first condenser 42 of the first heat quantity adjusting device 40 and the temperature of the second condenser 52 of the second heat quantity adjusting device 50. The opening degree of the conducting valve of the first intermediate heat exchanger can be controlled to control the heat exchange quantity of the first intermediate heat exchanger. And a second intermediate heat exchanger comprising a one-way heat conduction device is adopted for the first intermediate heat exchanger, and the heat conduction parameters of the one-way heat conduction device and the opening degree of a conduction valve of the first intermediate heat exchanger are controlled according to the temperature of the first evaporator 41 of the first heat regulating device 40 and the temperature of the second evaporator 51 of the second heat regulating device 50. The heat exchange amount is controlled by the heat conduction parameters of the one-way heat conduction device and the opening degree of the conduction valve of the first transfer heat exchanger. When the unidirectional heat conducting device is a semiconductor temperature regulator, the heat conducting parameters comprise voltage, temperature of a heat collecting end and the like. When the unidirectional heat conduction device is a refrigerant heat exchange device, the heat conduction parameters comprise the frequency of the compressor, the temperature of the refrigerant and the like. The determination of the heat exchange amount of the second transfer heat exchanger is the same as that described above, and is not repeated.
With respect to the foregoing energy system i, the control device is further configured to control to switch the communication between the first evaporator 41 and the second evaporator 51 through the second intermediate heat exchanger 30 when it is determined that the heat exchange between the first evaporator 41 and the second evaporator 51 (or between the first condenser 42 and the second condenser 52) cannot be performed in the set direction.
Specifically, by detecting the second medium temperature on the second condenser 52 side and the first medium temperature on the first condenser 42 side, it is determined whether or not heat exchange between the first condenser 42 and the second condenser 52 in a set direction is possible by judging the relationship between the first medium temperature and the second medium temperature. For example, the heat exchange direction is set such that heat is supplied from the second condenser 52 to the first condenser 42, and this is achieved on the premise that the second medium temperature on the second condenser 52 side is higher than the first medium temperature on the first condenser 42 side. Therefore, when the second medium temperature is lower than the first medium temperature, the heat exchange between the first condenser 42 and the second condenser 52 cannot be performed in a predetermined direction, and at this time, the switching device is controlled to switch the communication between the first condenser 42 and the second condenser 52 through the second intermediate heat exchanger 30. By analogy, the control principle of the cold quantity exchange between the first evaporator 41 and the second evaporator 51 is the same and will not be described again here.
According to a second aspect of the embodiments of the present invention, there is provided a control method of an energy system (refer to the description in the foregoing control device section), including,
s100, controlling the opening degree of a conducting valve of the first intermediate transfer heat exchanger according to the temperature of the first evaporator 41 of the first heat regulating device 40 and the temperature of the second evaporator 51 of the second heat regulating device 50;
and S200, controlling the opening degree of a conducting valve of the second intermediate heat exchanger according to the temperature of the first condenser 42 of the first heat regulating device 40 and the temperature of the second condenser 52 of the second heat regulating device 50.
In the embodiment of the present invention, the first heat quantity adjusting device 40 is an air conditioner in a heating mode, and the second heat quantity adjusting device 50 is a refrigerator. The first evaporator 41 of the air conditioner is outdoors, discharging waste heat; the first condenser 42 is indoor, and heats the indoor. The second evaporator 51 of the refrigerator is in the refrigeration chamber of the refrigerator to refrigerate the food in the refrigeration chamber; the second condenser 52 is located outside the refrigerator and discharges waste heat.
Next, a control method of an embodiment of the present invention will be described by taking a first heat quantity adjusting device 40 (air conditioner in heating mode) and a second heat quantity adjusting device 50 (refrigerator) as examples.
In step S100, the temperature of the first evaporator 41 includes the ambient temperature (the temperature of the discharged waste heat) on the first evaporator 41 side, and the temperature of the second evaporator 51 includes the target temperature and the actual temperature. The target temperature of the second evaporator 51 is set artificially, for example, -4 ℃. The actual temperature is the actual temperature inside the refrigerator.
Alternatively, as shown in fig. 12, step S100 includes:
s110, acquiring the ambient temperature of the first evaporator 41 side, the target temperature and the actual temperature of the second evaporator 51, and acquiring a temperature difference value between the target temperature and the actual temperature;
s120, determining the opening degree of the conduction valve (the input end conduction valve and the input end conduction valve) of the first intermediate heat exchanger according to the temperature difference value and the ambient temperature of the first evaporator 41.
In step S120, the larger the temperature difference of the second evaporator is, the larger the opening degree of the output end conduction valve is; conversely, the smaller the temperature difference, the smaller the opening. A sufficient amount of heat exchange is ensured so that the actual temperature on the second evaporator 51 side reaches the target temperature. The first intermediate heat exchanger may be a first intermediate heat exchanger or a second intermediate heat exchanger.
In a further alternative embodiment, with respect to the foregoing energy system i, the control method includes:
s110', obtaining the ambient temperature at the side of the first evaporator 41, the target temperature and the actual temperature of the second evaporator 51, and obtaining the temperature difference value between the target temperature and the actual temperature;
s111, determining the magnitude of the ambient temperature on the first evaporator 41 side and the actual temperature of the second evaporator 51;
s112, when the ambient temperature is lower than the actual temperature (i.e. it is determined that the first evaporator 41 and the second evaporator 51 cannot exchange heat in the set direction), controlling the communication path of heat exchange between the first evaporator 41 and the second evaporator 51 to pass through a second intermediate heat exchanger;
s120', according to the temperature difference value, the ambient temperature of the first evaporator 41 and the heat conduction parameters of the one-way heat conduction device of the second transfer heat exchanger; and determining the opening degrees of the conduction valves (the input end conduction valve and the input end conduction valve) of the second intermediate heat exchanger.
The temperature of the medium at the output end after forced heat exchange by the second intermediate heat exchanger (lower than the target temperature of the second evaporator 51) can be determined according to the heat conduction parameters of the one-way heat conduction device. At this time, the opening degree of the on-valve tends to decrease as the temperature of the medium at the output end is lower. However, under the condition that the temperature of the medium at the output end is determined, the larger the temperature difference is, the larger the opening degree is; the smaller the temperature difference, the smaller the opening. A sufficient amount of heat exchange is ensured so that the actual temperature on the second evaporator 51 side reaches the target temperature.
In the control method of the embodiment of the present invention, in step S200, the temperature of the first condenser 42 includes the target temperature and the actual temperature, and the temperature of the second condenser 52 includes the ambient temperature (the temperature of the discharged waste heat) on the side of the second condenser 52. The target temperature of the first condenser 42 is set manually, for example, 24 ℃. The actual temperature is the actual temperature in the room.
Alternatively, as shown in fig. 13, step S200 includes:
s210, acquiring a target temperature and an actual temperature of the first condenser 42, and acquiring a temperature difference value between the target temperature and the actual temperature; and, the ambient temperature on the second condenser 52 side is obtained;
s220, determining the opening degree of the conduction valve (the input end conduction valve and the input end conduction valve) of the second intermediate heat exchanger according to the difference and the ambient temperature at the second condenser 52 side.
In step S220, the opening degree is increased as the temperature difference of the first condenser 42 is increased; conversely, the smaller the temperature difference, the smaller the opening. A sufficient amount of heat exchange is ensured so that the actual temperature on the first condenser 42 side reaches the target temperature.
In a further alternative embodiment, with respect to the foregoing energy system i, the control method includes:
s210', acquiring a target temperature and an actual temperature of the first condenser 42, and acquiring a temperature difference value between the target temperature and the actual temperature; and, the ambient temperature on the second condenser 52 side is acquired;
s211, determining the magnitude of the actual temperature on the first condenser 42 side and the ambient temperature of the second condenser 52;
s212, when the ambient temperature is lower than the actual temperature (namely, it is determined that the second condenser 52 cannot exchange cold energy to the second condenser 52 according to the set direction), controlling a communication passage for heat exchange between the first condenser 42 and the second condenser 52 to pass through a second intermediate heat exchanger;
s220', according to the temperature difference value, the ambient temperature of the second condenser 52 and the heat conduction parameters of the one-way heat conduction device of the second transfer heat exchanger; and determining the opening degrees of the conduction valves (the input end conduction valve and the input end conduction valve) of the second intermediate heat exchanger.
The temperature of the medium at the output end after forced heat exchange by the second intermediate heat exchanger (which is higher than the target temperature of the first condenser 42) can be determined according to the heat conduction parameters of the one-way heat conduction device. At this time, the higher the temperature of the medium at the output end is, the smaller the opening degree of the on-off valve tends to be. However, under the condition that the temperature of the medium at the output end is determined, the larger the temperature difference is, the larger the opening degree is; the smaller the temperature difference, the smaller the opening. A sufficient amount of heat exchange is ensured so that the actual temperature on the first condenser 42 side reaches the target temperature.
According to a third aspect of embodiments of the present invention, there is provided a storage medium having a computer program stored thereon, characterized in that the computer program, when executed by a processor, implements the aforementioned control method of an energy system.
The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (6)
1. An energy system comprising a first heat conditioning device and a second heat conditioning device;
the first evaporator of the first heat regulating device is communicated with the second evaporator of the second heat regulating device in a heat exchange mode through a first intermediate heat exchanger;
the first condenser of the first heat regulating device is communicated with the second condenser of the second heat regulating device in a heat exchange mode through a second intermediate heat exchanger;
the first heat regulating equipment is connected with the first intermediate heat exchanger in series and connected with the first intermediate heat exchanger' in parallel; and the combination of (a) and (b),
a second transfer heat exchanger is connected in series to a communication passage for heat exchange between a first condenser of the first heat regulating equipment and a second condenser of the second heat regulating equipment, and is connected in parallel to a second transfer heat exchanger';
the first and second relay heat exchangers include:
an energy input end for communicating to a second condenser of the second heat conditioning unit or a first evaporator of the first heat conditioning unit;
an energy output end for communicating to a first condenser of the first heat conditioning unit or a second evaporator of the second heat conditioning unit;
the conduction valves are arranged on a passage of the energy input end and a passage of the energy output end;
the first relay heat exchanger 'and the second relay heat exchanger' further include, on the basis of the first relay heat exchanger and the second relay heat exchanger:
the energy input end and the energy output end are arranged at two ends of the unidirectional heat conduction device.
2. The energy system of claim 1, further comprising, a switching device;
when a first transfer heat exchanger 'is connected to a communication passage for heat exchange between a first evaporator of the first heat regulating device and a second evaporator of the second heat regulating device in parallel, the switching device is arranged at a connection interface where the first transfer heat exchanger' is connected in parallel and used for switching the communication passage between the first evaporator and the second evaporator;
when a second transit heat exchanger 'is connected in parallel to a communication passage for heat exchange between a first condenser of the first heat regulating device and a second condenser of the second heat regulating device, the switching device is arranged at a connection interface where the second transit heat exchanger' is connected in parallel, and is used for switching the communication passage between the first condenser and the second condenser.
3. The energy system according to claim 1, further comprising a control device for controlling a heat exchange amount of the first relay heat exchanger or the first relay heat exchanger' based on a temperature of a first evaporator of the first heat regulating device and a temperature of a second evaporator of the second heat regulating device; and a controller for controlling a heat exchange amount of the second relay heat exchanger or the second relay heat exchanger' according to a temperature of the first condenser of the first heat adjusting apparatus and a temperature of the second condenser of the second heat adjusting apparatus.
4. A control method of an energy system according to any one of claims 1 to 3, comprising:
controlling an opening degree of a conduction valve of the first relay heat exchanger or the first relay heat exchanger' according to a temperature of a first evaporator of the first heat adjusting apparatus and a temperature of a second evaporator of the second heat adjusting apparatus;
and controlling the opening degree of a conducting valve of the second intermediate heat exchanger or the second intermediate heat exchanger' according to the temperature of the first condenser of the first heat regulating device and the temperature of the second condenser of the second heat regulating device.
5. The control method according to claim 4, characterized by further comprising:
when the first evaporator and the second evaporator can not exchange heat in a set direction, the communication between the first evaporator and the second evaporator is switched through the first transfer heat exchanger';
when the first condenser and the second condenser can not exchange heat according to the set direction, the communication between the first condenser and the second condenser is switched through the second intermediate heat exchanger'.
6. A storage medium on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the control method of an energy system according to claim 4 or 5.
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| JP3423652B2 (en) * | 1999-10-28 | 2003-07-07 | 三菱電機株式会社 | Thermal storage refrigeration and air conditioning system |
| CN202420015U (en) * | 2011-10-16 | 2012-09-05 | 大连三洋冷链有限公司 | Air-conditioning and refrigeration integrated unit for outdoor type convenience store |
| CN105135552A (en) * | 2015-08-17 | 2015-12-09 | 珠海格力电器股份有限公司 | Air conditioner system |
| CN106123260B (en) * | 2016-06-24 | 2018-12-28 | 青岛海信日立空调***有限公司 | A kind of cold recovery energy-saving air conditioning system and control method |
| KR101890473B1 (en) * | 2016-07-20 | 2018-08-21 | 엘지전자 주식회사 | A system for combining refrigerator and air conditioner, and control method thereof |
| CN207815571U (en) * | 2018-01-17 | 2018-09-04 | 珠海格力电器股份有限公司 | Air handling system, refrigeration equipment and air-conditioning equipment |
| CN108375150B (en) * | 2018-04-26 | 2024-04-16 | 郑州云海信息技术有限公司 | Air conditioning system |
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Effective date of registration: 20201230 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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