CN109764562B

CN109764562B - Control method of energy system

Info

Publication number: CN109764562B
Application number: CN201910018821.0A
Authority: CN
Inventors: 于洋
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-09-25
Anticipated expiration: 2039-01-09
Also published as: CN109764562A

Abstract

The invention discloses a control method of an energy system, and belongs to the technical field of energy conservation. The method is used for controlling an energy system, wherein the energy system comprises two or more solar heat collectors and two or more water heaters, and terminal heat exchangers are arranged in the water heaters; the energy system further comprises two or more intermediate heat exchangers and two or more mixing units; the method comprises the following steps: controlling the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the water heater; and controlling the opening time of a heat release valve of a mixing unit connected with the water heater according to the difference value between the target temperature and the actual temperature of the water heater. By adopting the optional embodiment, the collection and scheduling of waste energy are realized, the waste energy is supplied to other equipment for use, the energy consumption and waste are reduced, and the energy conservation and emission reduction are realized.

Description

Control method of energy system

Technical Field

The invention relates to the technical field of energy conservation, in particular to a control method of an energy system.

Background

The solar water heater is a heating device for converting solar energy into heat energy, and heats water from low temperature to high temperature so as to meet the requirement of hot water in life and production of people. The solar water heater is divided into a vacuum tube type solar water heater and a flat plate type solar water heater according to the structural form, mainly uses the vacuum tube type solar water heater as a main part, and occupies 95 percent of domestic market share. The vacuum tube type domestic solar water heater is composed of heat collecting tube, water storage tank and support, and can convert solar energy into heat energy, and mainly depends on the vacuum heat collecting tube, and the vacuum heat collecting tube can utilize the principle of that hot water floats upwards and cold water sinks to make water produce microcirculation to obtain the required hot water.

However, the existing solar water heater needs to lead cold water to an outdoor vacuum heat collecting pipe for heating, so that the maintenance is inconvenient, and once a water leakage accident occurs, the daily life of the whole unit building is inconvenient.

How to convert solar energy into heat energy and then realize the distribution of the heat energy for heating water in an indoor water heater is a problem to be solved urgently at present.

Disclosure of Invention

The embodiment of the invention provides a control method of an energy system. 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, a method of controlling an energy system is provided.

In some optional embodiments, the method is used for controlling an energy system, wherein the energy system comprises two or more solar heat collectors and two or more water heaters, and terminal heat exchangers are arranged in the water heaters; the energy system also comprises two or more intermediate heat exchangers and two or more mixing units, wherein the two or more intermediate heat exchangers comprise one or more high-temperature intermediate heat exchangers and one or more low-temperature intermediate heat exchangers; the transfer heat exchanger comprises a heat absorption end and a plurality of heat release ends, the heat absorption end of the transfer heat exchanger is connected to the solar thermal collector, and the heat release ends of the transfer heat exchanger are connected to the heat absorption ends of different mixing units; the mixing unit comprises two heat absorption ends and a heat release end, one heat absorption end of the mixing unit is connected to the high-temperature transfer heat exchanger, the other heat absorption end of the mixing unit is connected to the low-temperature transfer heat exchanger, the heat release end of the mixing unit is connected to a terminal heat exchanger of a water heater corresponding to the mixing unit, two heat absorption ends of the mixing unit are respectively provided with a heat absorption valve, and the heat release end of the mixing unit is provided with a heat release valve; the method comprises the following steps: controlling the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the water heater; and controlling the opening time of a heat release valve of a mixing unit connected with the water heater according to the difference value between the target temperature and the actual temperature of the water heater.

Optionally, the step of controlling the opening times of two heat absorption valves of a mixing unit connected to the water heater according to the target temperature of the water heater comprises: obtaining the target temperature of the medium in the terminal heat exchanger according to the target temperature of the water heater; and adjusting the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the medium in the terminal heat exchanger.

Optionally, the method further comprises: acquiring the number of running water heaters; and controlling heat release valves of a mixing unit connected with the water heaters to open in a time-sharing manner according to the number of the running water heaters.

Optionally, the step of controlling a heat release valve of a mixing unit connected to the water heaters to be opened in a time-sharing manner according to the number of running water heaters includes: and when the number of the running water heaters is less than a preset value, controlling a heat release valve of a mixing unit connected with the water heaters to be opened at all times.

Optionally, the step of controlling a valve of a mixing unit connected to the water heaters to open in a time-sharing manner according to the number of running water heaters includes: and when the number of the running water heaters is larger than a preset value, controlling a heat release valve of a mixing unit connected with the water heaters to be opened in a time sharing mode.

Optionally, the step of controlling a heat release valve of a mixing unit connected to the water heater to be opened in a time-sharing manner when the number of running water heaters is greater than a preset value includes: all water heaters adopt a single-inlet and single-outlet switching mode to carry out circulating heat exchange.

Optionally, the method further comprises: and controlling the opening time of a heat release valve of a mixing unit connected with each water heater according to the number of the running water heaters and the difference value of the target temperature and the actual temperature of each water heater.

Optionally, the opening time of a heat release valve of a mixing unit connected to said water heater

Wherein K is a proportionality coefficient, Delta T_nIs the difference between the target temperature and the actual temperature of the water heater, Δ T_avIs the average value of the difference between the target temperature and the actual temperature of each water heater, t_baseIs the reference on time.

Optionally, the reference on-time t_baseAccording to the number of running water heaters.

Optionally, the Δ T_nIs the difference between the target temperature and the actual temperature when the temperature is delta T_nAnd when the temperature is less than or equal to 0, controlling a heat release valve of a mixing unit related to the water heater to be closed.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the waste energy is collected and dispatched and supplied to other equipment for use, 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 block diagram illustrating an energy system according to an exemplary embodiment;

fig. 2 is a flow diagram illustrating a method of controlling an energy system according to an exemplary embodiment;

FIG. 3a is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 3b is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 3c is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 3d is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 3e is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 3f is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 3g is a schematic diagram illustrating the structure of an energy storage station according to an exemplary embodiment;

FIG. 4a is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4b is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4c is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4d is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4e is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4f is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4g is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 4h is a schematic diagram of a relay heat exchanger according to an exemplary embodiment;

FIG. 5a is a schematic diagram illustrating the structure of a mixing unit according to an exemplary embodiment;

fig. 5b is a schematic diagram illustrating the structure of a mixing unit 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.

Fig. 1 shows an alternative embodiment of an energy system.

In this alternative embodiment, the energy system comprises two or more solar collectors and two or more water heaters, each of which is provided with a terminal heat exchanger. The energy system also includes two or more intermediate heat exchangers including one or more high temperature intermediate heat exchangers and one or more low temperature intermediate heat exchangers, and two or more mixing units. The transfer heat exchanger comprises a heat absorption end and a plurality of heat release ends, the heat absorption end of the transfer heat exchanger is connected to the solar heat collector, and the heat release ends of the transfer heat exchanger are connected to the heat absorption ends of different mixing units. The mixing unit comprises two heat absorption ends and a heat release end, one heat absorption end of the mixing unit is connected to the high-temperature transfer heat exchanger, the other heat absorption end of the mixing unit is connected to the low-temperature transfer heat exchanger, and the heat release end of the mixing unit is connected to the terminal heat exchanger of one corresponding water heater. Two heat absorption ends of the mixing unit are respectively provided with a heat absorption valve, and a heat release end of the mixing unit is provided with a heat release valve.

The solar heat collector is used for heating media in the heat collecting pipe, and then the media exchange heat with the terminal heat exchanger of the water heater through the transfer heat exchanger, so that water in the cavity of the water heater is heated.

Fig. 2 shows an alternative embodiment of the control method of the energy system described above.

In this alternative embodiment, the control method is used for controlling the energy system, and includes the following steps: step 11, controlling the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the water heater; and step 12, controlling the opening time of a heat release valve of a mixing unit connected with the water heater according to the difference value between the target temperature and the actual temperature of the water heater.

By adopting the optional embodiment, when the heat absorption valves of the mixing unit are opened, the high-temperature medium of the high-temperature transfer heat exchanger and the low-temperature medium of the low-temperature transfer heat exchanger are mixed in the mixing unit, the mixed medium is used by the terminal heat exchanger of the medium water heater and used for heating water in the cavity of the water heater, and the medium temperature in the mixing unit can be accurately adjusted by controlling the opening time of the two heat absorption valves. When the heat release valve of the mixing unit is closed, the water heater is disconnected with the mixing unit, and the water heater stops heat exchange.

Optionally, the step of controlling the opening times of two heat absorption valves of a mixing unit connected to the water heater according to a target temperature of the water heater comprises: obtaining the target temperature of the medium in the terminal heat exchanger according to the target temperature of the water heater; and adjusting the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the medium in the terminal heat exchanger.

Alternatively, the energy system is in units of homes, or in units of entire unit buildings, or in units of entire cells, or in units of a certain area.

Optionally, the target temperature is a preset temperature set by a user.

By adopting the optional embodiment, the opening time of the heat release valve of the mixing unit connected with the water heater is controlled according to the difference value between the target temperature and the actual temperature, and the opening time of the heat release valve is long if the temperature difference between the target temperature and the actual temperature is large; the temperature difference is small, and the opening time of the heat release valve is short.

For example, when the temperature difference between the target temperature and the actual temperature of one of the water heaters is large, the water heater needs more heat exchange, the opening time of two heat absorption valves of the mixing unit is controlled according to the target temperature of the water heater, the medium temperature in the mixing unit is adjusted, and then the opening time of a heat release valve of the mixing unit is controlled according to the temperature difference between the target temperature and the actual temperature of the water heater.

Optionally, the actual temperature of the water heater is obtained by a temperature sensor provided inside the water heater.

In another optional embodiment, the control method further includes: acquiring the number of running water heaters; and controlling a heat release valve of a mixing unit connected with the water heaters to open in a time-sharing way according to the number of the running water heaters.

Because the transfer heat exchanger comprises a plurality of heat release ends, the number of the solar heat collectors is less than or equal to that of the mixing units, and a large number of water heaters can exchange heat through a small number of solar heat collectors.

By adopting the optional embodiment, after the number of the running water heaters reaches a certain numerical value, the water heaters exchanging heat with the solar heat collector are controlled by adopting a time-sharing opening method, namely, the heat release valves of the mixing units connected with the water heaters are controlled to be opened in a time-sharing manner, so that the supply of media in the solar heat collector is ensured, and the water heaters can be uniformly heated or cooled.

Optionally, the step of controlling the time-sharing opening of the heat release valve of the mixing unit connected to the water heater according to the number of running water heaters comprises: when the number of the running water heaters is smaller than a preset value, controlling a heat release valve of a mixing unit connected with the water heaters to be opened at all times; and when the number of the running water heaters is larger than a preset value, controlling a heat release valve of a mixing unit connected with the water heaters to be opened in a time sharing mode.

The full-time opening of the heat release valve of the mixing unit means that the opening time of the heat release valve of the mixing unit is not limited and the heat release valve of the mixing unit is not always opened.

With this alternative embodiment, the capacity of the solar collector can be optimized to supply more water heaters with a smaller capacity or a smaller number of solar collectors. For example, the number of water heaters which can be simultaneously supplied by the solar thermal collector is 10, when the number of running water heaters is 15, the number of the water heaters which exchange heat with the solar thermal collector is controlled to be 10 in one time period, and the water heaters which are connected with the solar thermal collector are controlled by adopting a time-sharing opening method, so that uniform heat exchange of a plurality of water heaters is realized, the supply of media in the solar thermal collector is ensured, and each water heater can be uniformly heated or cooled.

Optionally, when the number of the running water heaters is greater than a preset value, a single-inlet single-outlet switching mode is adopted to control the accessed water heaters and the exited water heaters, and all the water heaters perform circulating heat exchange in the single-inlet single-outlet switching mode.

In another optional embodiment, the method further comprises: and controlling the number of the water heaters exchanging heat with the solar heat collector at the same time according to the number of the running water heaters and the difference value between the target temperature and the actual temperature of the water heaters.

By adopting the optional embodiment, the reasonable supply of media in the solar thermal collector can be ensured, and the stable operation of the system is ensured.

For example, for a water heater with a large difference between the target temperature and the actual temperature, more heat exchange with the solar heat collector is required compared with a water heater with a small difference between the target temperature and the actual temperature, and therefore, the difference between the target temperature and the actual temperature is an important basis for controlling the number of the solar heat collector connected to the water heater. For example, for a water heater with a large difference between the target temperature and the actual temperature, more heat exchange needs to be performed on a single water heater, so that the number of the solar heat collectors connected to the water heaters at the same time is controlled, and the situation of insufficient supply of system media is prevented. For another example, for a water heater with a small difference between the target temperature and the actual temperature, a single water heater needs to perform less heat exchange, and therefore, the solar heat collector can be connected to a large number of water heaters.

For another example, the solar thermal collector exchanges heat with 20 water heaters, wherein 5 water heaters with the difference between the target temperature and the actual temperature being more than 20 ℃, 10 water heaters with the difference between the target temperature and the actual temperature being less than 10 ℃, the number of the water heaters exchanging heat with the solar thermal collector is controlled to be 10, and the difference between the target temperature and the actual temperature of the 10 water heaters is less than 10 ℃; or controlling the number of the water heaters which exchange heat with the solar heat collector to be 8, wherein the number of the water heaters with the difference between the target temperature and the actual temperature being less than 10 ℃ is 6, and the number of the water heaters with the difference between the target temperature and the actual temperature being more than 20 ℃ is 2; or controlling the number of the water heaters exchanging heat with the solar heat collector to be 5, wherein the difference between the target temperature and the actual temperature of the 5 water heaters is more than 20 ℃.

In another optional embodiment, the control method further includes: and controlling the opening time of the heat release valve of the mixing unit connected with each water heater according to the number of the running water heaters and the difference value between the target temperature and the actual temperature of the water heaters.

Optionally, when the target temperature is higher than the actual temperature, controlling the opening time of a heat release valve of a mixing unit connected with the water heater; and when the target temperature is lower than the actual temperature, controlling a heat release valve of a mixing unit connected with the water heater to be closed.

By adopting the optional embodiment, the heat exchange time of each water heater and the solar heat collector is different, and the opening time of a heat release valve of a mixing unit connected with the water heater is controlled to be longer for the water heater with large temperature difference between the target temperature and the actual temperature; for a water heater with small temperature difference between the target temperature and the actual temperature, the opening time of a heat release valve for controlling a mixing unit connected with the water heater is short.

Wherein K is a proportionality coefficient, Delta T_nIs the difference between the target temperature and the actual temperature of the water heater, Δ T_avFor target and actual temperatures of running water heatersAverage value of the difference, t_baseIs the reference on time.

For water heaters, Δ T_nIs the difference between the target temperature and the actual temperature when the temperature is delta T_nAnd when the temperature is less than 0, controlling a heat release valve of a mixing unit connected with the water heater to be closed.

Alternatively, the reference on time t_baseAccording to the number of running water heaters. Alternatively, the smaller the number of water heaters in operation, the reference on-time t_baseThe longer the number of running water heaters, the more the reference on-time t_baseThe shorter.

Herein, the temperature adjusting device refers to a device which can bring about a change in temperature of itself or the environment when the device is operated, such as a refrigerator, an air conditioner, an air energy compressor, a solar heat collection and temperature adjustment device, a mobile robot heat release charger, a water heater, a heating and temperature adjustment device, a heating device, a compressor, a cold collection and temperature adjustment device, and a freezer.

An energy storage station according to an embodiment of the invention is described with reference to fig. 3a to 3 g.

The energy storage station 10, the energy absorbing end 101 of the energy storage station 10 is used for absorbing the energy of the temperature adjusting device (absorbing end temperature adjusting device 1011) capable of generating corresponding energy, and the energy releasing end 102 is used for releasing the energy to the temperature adjusting device (releasing end temperature adjusting device 1021) needing corresponding energy.

The specific form of the energy storage station 10 is not limited, and the main function is to store energy, and the energy storage station 10 is provided with an energy storage material which can store energy and ensure the heat insulation of the energy storage station 10. The energy storage station 10 may be a thermally insulated tank filled with energy storage material. Or a storage pool dug on the ground, and the inner wall of the storage pool is subjected to heat insulation treatment.

The energy storage station of the embodiment of the invention can be applied to a single family and can also be applied to a cell or a community. The application scenarios are different, the number of temperature regulating devices is different, and the storage capacity of the energy storage station 10 is different. For example, when applied in a single household setting, the number of temperature conditioning devices is limited, typically not exceeding 10. When the energy storage station is applied to a cell or even a larger community, the number of the external temperature adjustment devices is huge, and the energy storage amount of the energy storage station 10 needs to be large. The energy storage station, when having an application, may be determined only by the actual situation.

In the energy storage station 10 according to the embodiment of the present invention, the stored energy may be divided into heat and cold according to the temperature represented by the energy, and therefore, the heat and the cold are relative concepts and are divided according to a set limit (e.g., a temperature limit). Thus, in an alternative embodiment, the energy storage station 10 of an embodiment of the invention may be a heat storage device (heat storage station) 11, a cold storage device (cold storage station) 12, or comprise both a heat storage device 11 and a cold storage device 12.

The energy absorbing end 101 of the heat storage device 11 is a heat absorbing end 111 for absorbing heat of the first temperature adjusting device 1111 capable of generating heat, and the energy releasing end 102 is a heat releasing end 112 for releasing heat to the second temperature adjusting device 1121 requiring heat. For example, the first temperature adjusting device may be a refrigerator, an outdoor unit of an air conditioner during air conditioning, an air energy compressor, a solar heat collecting temperature adjusting device, a heat releasing charger of a mobile robot, and the like. The second temperature adjusting device can be a water heater, a heating air conditioner, a heating temperature adjusting device, a heating device and the like.

The energy absorbing terminal 101 of the cold storage device 12 is a cold absorbing terminal 121 (i.e., a heat releasing terminal) for absorbing cold of the third temperature adjusting apparatus 1211 capable of generating cold, and the energy releasing terminal 102 is a cold releasing terminal 122 (i.e., a heat absorbing terminal) for releasing cold to the fourth temperature adjusting apparatus 1221 requiring cold. For example, the third temperature adjusting device may be an outdoor unit of an air conditioner, a compressor, a cooling and temperature adjusting device, or the like, when the air conditioner is heating. The fourth temperature regulating device may be a refrigerator, an ice chest, a refrigerated air conditioner, or the like.

The energy storage station 10 of embodiments of the present invention may include one or more thermal storage devices 11, and one or more cold storage devices 12. As shown in fig. 3b, an energy storage station comprises a heat storage device 11 and a cold storage device 12. The specific number and types of the settings can be determined according to the set application scene.

In the embodiment of the present invention, the energy storage station 10 described below may be referred to as a heat storage device 11 or a cold storage device 12, unless otherwise specified. When the energy storage station 10 is used as the heat storage device 11, the energy absorbing terminal 101 is a heat absorbing terminal and the energy discharging terminal 102 is a heat discharging terminal. When the energy storage station 10 is used as the cold storage device 12, the energy absorbing terminal 101 is a cold absorbing terminal and the energy discharging terminal 102 is a cold discharging terminal.

In the embodiment of the present invention, the energy storage station 10 can absorb energy generated by one or more temperature control devices at the same time, and can also release energy to one or more temperature control devices at the same time, so that according to the actual situation of the external temperature control device, one or more energy absorption terminals 101 and one or more energy release terminals 102 can be provided, and the specific number is determined according to the actual situation.

In the energy storage station 10 according to the embodiment of the present invention, the energy absorption end 101 is used for absorbing energy of the temperature adjustment device 1011 (the first temperature adjustment device 1111 and the third temperature adjustment device 1211) capable of generating corresponding energy, and the absorption modes are various, for example, when a fluid medium is used as a carrier, the energy absorption end 101 is communicated with a heat exchange device at the side of the temperature adjustment device 1011 at the absorption end through a pipeline by using a heat exchange device, and a medium circulation path is formed between the energy storage station 10 and the temperature adjustment device. The fluid medium absorbs the energy generated by the temperature adjusting device side and then flows to the energy absorption end 101 of the energy storage station 10, the energy storage material in the energy storage station 10 absorbs and stores the energy of the medium at the energy absorption end 101, the fluid medium after releasing the energy flows out to the heat exchange device at the temperature adjusting device side to absorb the energy generated by the temperature adjusting device side, and the circulation is carried out, so that the energy storage of the energy storage station 10 is completed.

In an alternative embodiment, the energy absorbing terminals 101 of the energy storage station 10 are one or more, each energy absorbing terminal 101 being independently located. For example, the energy absorption side 101 of the energy storage station 10 comprises one (as shown in fig. 3 e) or more first heat exchange devices (as shown in fig. 3 d) having an inlet pipe 141 and an outlet pipe 142 (i.e. a group of communicating pipes 14) which communicate with the heat exchange device on the side of the absorption side temperature regulating device 1011 via two pipes, and energy is converted between the temperature regulating devices (the first temperature regulating device 1111 and the third temperature regulating device 1211) and the energy storage station 10 via respective medium circulation paths. For another example, as shown in fig. 3c, the energy absorption end 101 is a first heat exchange device, and the liquid inlet end of the first heat exchange device is connected to a plurality of liquid inlet pipes 141, and the liquid outlet end is connected to a plurality of liquid outlet pipes 142. One liquid inlet pipe 141 and one liquid outlet pipe 142 are used as a communicating pipe group 14 to form a plurality of independently arranged communicating pipe groups, and the communicating pipe groups are communicated with the terminal heat exchange device on the side of the external temperature regulating equipment. The energy absorption device is suitable for a scene that a plurality of external temperature adjustment devices input energy to the energy absorption end 101 at the same time. The flow control devices are arranged at the positions of the liquid inlet pipes at the liquid inlet end and the liquid outlet pipes at the liquid outlet end of the first heat exchange device, so that energy generated by one or more temperature adjusting devices can be absorbed simultaneously by controlling the flow control devices, the flow of media in a medium circulation pipeline of each temperature adjusting device is adjusted, and different heat exchange efficiencies are realized. In a further alternative embodiment, the energy absorption end 101 of the energy storage station 10 may further include a plurality of terminal heat exchangers, each terminal heat exchanger having a terminal liquid inlet pipe and a terminal liquid outlet pipe, and respectively connected to the liquid outlet pipe and the liquid inlet pipe of the first heat exchanger through two pipes. The terminal heat exchange device is arranged on the side of the temperature adjusting equipment 1011 at the absorption end and used for absorbing energy generated by the temperature adjusting equipment. The first heat exchanger and the terminal heat exchanger form a medium circulation path, and the energy generated by the temperature adjusting device is converted into the energy storage station 10 through a fluid medium. When the energy storage station 10 is the heat storage device 11, the terminal heat exchange device is arranged on the side of the first temperature regulating device 1111. When the energy storage station 10 is the cold storage device 12, the terminal heat exchanger is disposed on the third temperature control device 1211 side.

In another alternative embodiment, the energy absorbing end 101 of the energy storage station 10 is multiple, and the conduits of the multiple energy absorbing ends 101 are interconnected. The communication is performed in many ways as long as the heat exchange device on the temperature adjusting device side and the energy absorbing end 101 can form a medium circulation path. For example, as shown in fig. 3f, the energy absorption terminals 101 are connected to the liquid outlet transit line 152 through the liquid inlet transit line 151, the liquid inlet pipe 141 of each energy absorption terminal 101 is connected to the liquid inlet transit line 151, and the liquid outlet pipe 142 of each energy absorption terminal 101 is connected to the liquid outlet transit line 152. And then the liquid inlet transit pipeline 151 and the liquid outlet transit pipeline 152 are used as a group of communicating pipeline group, and are communicated with a terminal heat exchange device at the side of the temperature adjusting equipment through two pipelines, and energy conversion is carried out between the temperature adjusting equipment (the first temperature adjusting equipment and the third temperature adjusting equipment) and the energy storage station 10 through respective medium circulation passages. That is, the liquid inlets of the energy absorption ports 101 (the first heat exchange devices) are communicated, and the liquid outlets are communicated. The flow control devices are arranged at the communication ports of the inlet liquid transfer pipeline 151 and the outlet liquid transfer pipeline 152, so that the energy generated by one or more temperature adjusting devices can be absorbed simultaneously, and the energy can be transmitted to one or more energy absorption ends 101.

Similarly, the energy releasing end 102 is used for releasing energy to the temperature adjusting equipment needing corresponding energy. For example, when a fluid medium is used as a carrier, the energy releasing end 102 is connected with the heat exchange device on the equipment side through a pipeline by using a heat exchange device, and a medium circulation path is formed between the energy storage station 10 and the releasing end temperature adjusting equipment 1021 (the second temperature adjusting equipment 1121 and the fourth temperature adjusting equipment 1221). The fluid medium absorbs the energy in the energy storage material of the energy storage station 10 in the energy release end 102 and then flows to the terminal heat exchange device at the side of the temperature regulating device 1021, the temperature regulating device side absorbs the energy in the fluid medium, the fluid medium after the energy release flows back to the energy release end 102 of the energy storage station 10, and the cycle is repeated, so that the energy release of the energy storage station 10 is completed.

In an alternative embodiment, the energy release end 102 of the energy storage station 10 is one or more, and the piping of each energy release end 102 is independently arranged. For example, the energy discharging end 102 of the energy storage station 10 includes one (as shown in fig. 3 e) or a plurality of second heat exchanging devices (as shown in fig. 3 d), each of which has an inlet pipe 141 and an outlet pipe 142 (i.e., a group of communicating pipes 14), and is communicated with the terminal heat exchanging device at the temperature adjusting device 1021 side through two pipes, and energy is converted between the temperature adjusting devices (specifically, the second temperature adjusting device 1121 and the fourth temperature adjusting device 1221) and the energy storage station 10 through independent medium circulation paths. As shown in fig. 3c, the energy releasing end 102 comprises a second heat exchanging device, the liquid inlet end of the second heat exchanging device is connected to a plurality of liquid inlet pipes 141, and the liquid outlet end of the second heat exchanging device is connected to a plurality of liquid outlet pipes 142. One liquid inlet pipe 141 and one liquid outlet pipe 142 are used as a communicating pipe set 14 to form a plurality of independently arranged communicating pipe sets 14, and the independently arranged communicating pipe sets are respectively used for being communicated with a terminal heat exchange device at the side of the external release end temperature adjusting device 1021. The energy output scene of the energy release end 102 to a plurality of external temperature adjusting devices is adapted. The flow control devices are arranged at the liquid inlet pipes at the liquid inlet end and the liquid outlet pipes at the liquid outlet end of the second heat exchange device, and then the energy can be released to one or more temperature adjusting devices at the same time by controlling the flow control devices, the flow of media in a medium circulation pipeline of each temperature adjusting device is adjusted, and different heat exchange efficiencies are realized. In a further alternative embodiment, the energy discharging end 102 of the energy storage station 10 may further include a plurality of terminal heat exchanging devices, each having a terminal liquid inlet pipe and a terminal liquid outlet pipe, respectively connected to the liquid outlet pipe 142 and the liquid inlet pipe 141 of the second heat exchanging device through the two pipes. The terminal heat exchange device is arranged on the side of the temperature adjusting equipment and used for absorbing energy generated by the temperature adjusting equipment. The second heat exchange device and the terminal heat exchange device form a medium circulation path, and the energy in the energy storage station 10 is released to the temperature regulating equipment side through a fluid medium. When the energy storage station 10 is a heat storage device 11, the terminal heat exchange device is disposed at the side of the second temperature adjusting device 1121. When the energy storage station 10 is the cold storage device 12, the terminal heat exchange device is arranged on the fourth temperature adjustment device 1221 side.

In another alternative embodiment, the energy release end 102 of the energy storage station 10 is multiple, and the multiple energy release ends 102 are interconnected. The communication mode is various, as long as the medium circulation path can be formed by the heat exchange device at the temperature adjusting device side and the energy releasing end 102. For example, as shown in fig. 3f, the energy releasing ends 102 (the second heat exchange devices) are communicated with the outlet transit line 152 through the inlet transit line 151, the inlet pipe 141 of each energy releasing end 102 (each second heat exchange device) is communicated with the inlet transit line 151, and the outlet pipe 142 of each energy releasing end 102 (each second heat exchange device) is communicated with the outlet transit line 152. And then the liquid inlet transit pipeline 151 and the liquid outlet transit pipeline 152 are used as a group of communicating pipeline group, and are communicated with a heat exchange device at the side of the temperature adjusting equipment through two pipelines, and energy conversion is carried out between the temperature adjusting equipment (the first temperature adjusting equipment and the third temperature adjusting equipment) and the energy storage station 10 through respective medium circulation passages. That is, the liquid inlets of the energy release ends 102 (the second heat exchange devices) are communicated, and the liquid outlets are communicated. The flow control devices are arranged at the communication ports on the liquid inlet transfer pipeline and the liquid outlet transfer pipeline, so that energy can be released from one or more energy release ends 102 at the same time, and energy can be released to one or more temperature adjusting devices at the same time.

In the embodiment of the present invention, the heat exchange devices used for the energy absorption end 101 and the energy release end 102 of the energy storage station 10 may be plate heat exchangers, evaporators, condensers, heat exchange coils, and the like.

In the energy storage station 10 according to the embodiment of the present invention, the energy absorption end 101 and the energy release end 102 may be arranged in the same manner or in different manners.

In an alternative embodiment, the energy absorption end 101 and the energy release end 102 of the energy storage station 10 are identical in construction. Specifically, the energy storage station 10 includes the following four embodiments:

in the first energy storage station 10, as shown in fig. 3e, the energy absorbing end 101 is a first heat exchange device, and is connected to the heat exchange device on the temperature adjusting device side through a group of communicating pipes. The energy releasing end 102 is a second heat exchange device, and is communicated with the heat exchange device at the side of the temperature adjusting device through a group of communicating pipelines. That is, the pipe of the energy-absorbing end 101 and the pipe of the energy-releasing end 102 are provided independently. That is, the energy absorbing end 101 of the first energy storage station 10 is a first heat exchange device having a set of independent communicating pipe sets, and the energy discharging end 102 is a second heat exchange device having a set of independent communicating pipe sets for communicating with the heat exchange device on the side of the temperature adjusting device.

As shown in fig. 3f, in the second energy storage station 10, the energy absorption end 101 is a plurality of first heat exchange devices, and is communicated with the heat exchange device at the temperature adjusting device side through a communicating pipe set (composed of an inlet liquid transfer pipeline 151 and an outlet liquid transfer pipeline 152). The energy releasing end 102 is a plurality of second heat exchange devices, and is communicated with the heat exchange device at the side of the temperature adjusting device through a group of communicating pipeline sets (composed of a liquid inlet transit pipeline 151 and a liquid outlet transit pipeline 152). That is, the conduits of the plurality of energy absorbing ports 101 communicate with each other, and the conduits of the plurality of energy discharging ports 102 communicate with each other. That is, the energy storage station 10 of the second type has a plurality of energy absorption terminals 101, and the liquid inlet pipes and the liquid outlet pipes of the plurality of energy absorption terminals are communicated with each other and communicated with the heat exchanger on the temperature adjusting device side through a communicating pipe group. The energy release ends 102 are multiple, and liquid inlet pipes and liquid outlet pipes of the multiple energy release ends are mutually communicated and are communicated with a heat exchange device at the side of the temperature adjusting equipment through a group of communicating pipeline groups.

As shown in fig. 3a and 3c, in the third energy storage station 10, the energy absorbing end 101 is a first heat exchange device, and is communicated with the heat exchange device on the side of the temperature regulating device through a plurality of groups of communicating pipe sets. The energy releasing end 102 is a second heat exchange device and is communicated with the heat exchange device at the side of the temperature adjusting device through a plurality of communicating pipeline sets. The plurality of communicating pipe groups of one energy absorbing terminal 101 are independently provided, and the plurality of communicating pipe groups of one energy discharging terminal 102 are independently provided. That is, the third energy storage station 10 has one energy absorption end 101 having a plurality of sets of independently provided communication pipe groups, and one energy discharge end 102 having a plurality of sets of independently provided communication pipe groups.

In the fourth energy storage station 10, as shown in fig. 3d, the energy absorption end 101 is a plurality of first heat exchange devices, and the communicating pipe group 14 formed by the liquid inlet pipe 141 and the liquid outlet pipe 142 of each heat exchange device is communicated with the heat exchange device on the temperature adjusting device side. The energy releasing end 102 is a plurality of second heat exchanging devices, and is communicated with the heat exchanging device on the side of the temperature adjusting device through a communicating pipeline group 14 formed by a liquid inlet pipe 141 and a liquid outlet pipe 142 of each heat exchanging device. The communicating tube group of each energy absorption port 101 is independently provided, and the communicating tube group of each energy release port 102 is independently provided. That is, the energy absorbing terminals 101 of the fourth energy storage station are plural, and the communicating pipe groups of each energy absorbing terminal 101 are independently arranged; the energy release end 102 of the energy storage station is multiple, and the communicating pipeline group of each energy release end 102 is independently arranged.

Of course, the energy absorbing end 101 and the energy discharging end 102 of the energy storage station 10 may be arranged differently. The specific setting mode is determined by combining according to the situation, and is not described in detail herein.

In an alternative embodiment, the energy storage station 10 further comprises a plurality of flow control devices 13, the plurality of flow control devices 13 being respectively disposed in the conduits of the energy absorption end 101 and the energy release end 102 of the energy storage station 10. The flow control device has the function of adjusting the flow, including power action and throttling action. Where the power action is used to increase the flow and the throttling action is used to decrease the flow. In embodiments where energy exchange is performed by a fluid medium, the flow control device may be a power pump and solenoid valve, or an expansion valve, etc. The energy absorbing end 101 and the energy releasing end 102 of the energy storage station 10 exchange energy with external temperature adjusting devices through pipelines (liquid inlet pipe 141 and liquid outlet pipe 142), that is, one temperature adjusting device and the energy absorbing end 101 (or the energy releasing end 102) form a medium circulation pipeline, and the flow control device is arranged on the medium circulation pipeline corresponding to each temperature adjusting device. The flow rate of the medium in the medium circulation pipeline can be controlled and adjusted from zero to the maximum flow rate through the arrangement of the flow control devices, so that the storage amount or the release amount of the energy storage station 10 can be controlled and adjusted. In a specific embodiment, flow control devices are disposed at the interface of each inlet tube 141 and each outlet tube 142 of energy absorption end 101 and at the interface of each inlet tube 141 and each outlet tube 142 of energy discharge end 102, respectively.

In the embodiment of the present invention, a specific structure of the energy storage station 10 is provided, as shown in fig. 3g, which includes one or more energy storage stacks 100, each energy storage stack 100 includes an energy storage unit 110 for storing energy; an absorption end heat exchange device 101 embedded in the energy storage stack 110; a discharge side heat exchange device 102 embedded in the accumulator stack 110.

In the embodiment of the present invention, the energy storage unit 110 may use an existing energy storage material, such as molten salt, and may store heat. The molten salt is of various kinds, such as ceramic matrix molten salt. For another example, an ice bag can store cold. The shape of the energy storage unit is not limited, and the energy storage unit can be determined according to the physical properties of the energy storage material, for example, when molten salt is adopted, the energy storage unit adopts a rigid shell, the molten salt is packaged in the rigid shell, and a groove is formed in the rigid shell and used for embedding the absorption end heat exchange device and the release end heat exchange device.

Absorption side heat exchangers, i.e., energy absorption sides 101, can be provided in one or more of the energy storage stacks. The communicating pipelines of the absorption end heat exchange devices in the energy storage piles can be independently arranged and can also be communicated with each other. Reference is made to the foregoing.

The discharge end heat exchange devices, i.e., the energy discharge ends 102, may be provided with one or more discharge end heat exchange devices in each accumulator stack. The communicating pipelines of the heat exchange devices at the releasing ends in the energy storage piles can be independently arranged and can also be communicated with each other. Reference is made to the foregoing.

Of course, the energy storage station 10 further includes a heat-insulating housing for heat insulation and heat preservation, so as to prevent energy loss.

In this embodiment, the absorption end heat exchange device employs a first heat exchange coil; the heat exchange device at the releasing end adopts a second heat exchange coil. The coil pipe is adopted, so that the heat exchange area between the coil pipe and the heat storage unit is increased, and the storage or release efficiency is improved.

Further, the first heat exchange coil and the second heat exchange coil are arranged in the energy storage unit in a staggered mode.

When only one energy storage stack 100 is arranged in the energy storage station 10 of the present embodiment, the communication pipeline between the absorption side heat exchange device 101 and the release side heat exchange device 102 may be the structure of the first to fourth energy storage stations 10.

When a plurality of energy storage stacks 100 are arranged in the energy storage station 10 of the present embodiment, the communication pipeline of the absorption side heat exchange device 101 and the release side heat exchange device 102 in each energy storage stack 100 is arranged as shown in fig. 3e or fig. 3 f. And a total liquid inlet pipe and a total liquid outlet pipe are additionally arranged at the end of the absorption end heat exchange device 101, the liquid inlet pipe (141 or 151) of each absorption end heat exchange device 101 is communicated with the total liquid inlet pipe, and the liquid outlet pipe (142 or 152) of each absorption end heat exchange device 101 is communicated with the total liquid outlet pipe. Similarly, a total liquid inlet pipe and a total liquid outlet pipe are additionally arranged at the end of the release end heat exchange device 102, the liquid inlet pipe (141 or 151) of each release end heat exchange device 102 is communicated with the total liquid inlet pipe, and the liquid outlet pipe (142 or 152) of each release end heat exchange device 102 is communicated with the total liquid outlet pipe.

Referring to fig. 4a to 4f, a relay heat exchanger according to the present invention, referred to as a first relay heat exchanger 20, includes: a heat sink end 201 for communication to an energy storage station 10/temperature conditioning device (e.g., a first temperature conditioning device 1111 or a fourth temperature conditioning device 1221); and a heat release end 202 for communication to a temperature regulating device (e.g., the second temperature regulating device 1121 or the third temperature regulating device 1211)/the energy storage station 10.

The first transfer heat exchanger 20 of the embodiment of the invention is connected between the energy storage station 10 and the temperature adjusting equipment, and plays a transfer role in energy conversion between the energy storage station 10 and the plurality of temperature adjusting equipment. In practical application, the number of the temperature adjusting devices is not fixed, and the number of the temperature adjusting devices can be one, two or even more; therefore, the energy storage station 10 according to the embodiment of the present invention has one or more heat absorbing ends 201 and one or more heat releasing ends 202, so as to realize one-way to multi-way, or multi-way to multi-way conversion, and can conveniently adjust the energy storage and release between the energy storage station 10 and the temperature adjusting device (the temperature adjusting device 1011 at the absorbing end or the temperature adjusting device 1021 at the releasing end), and the passage is convenient to control, and according to actual conditions, part of the passages can be conducted to perform energy exchange. And moreover, a communication pipeline between the energy storage station and the temperature regulating equipment can be simplified, the layout of the pipeline is convenient, and the cost is reduced.

In the intermediate heat exchanger 20 according to the embodiment of the present invention, when the heat absorption end 201 is communicated to the energy storage station 10, the heat release end 202 is communicated to the temperature adjustment device, and the energy storage station 10 supplies heat to the temperature adjustment device through the intermediate heat exchanger 20, or the temperature adjustment device supplies cold to the energy storage station through the intermediate heat exchanger 20. When the heat absorption end 201 is communicated with the temperature adjusting device, the heat release end 202 is communicated with the energy storage station 10, and the temperature adjusting device supplies heat to the energy storage station 10, or the energy storage station 10 supplies cold to the temperature adjusting device.

In the embodiment of the present invention, the heat absorbing end 201 is used for absorbing heat of the energy storage station 10 (or the first temperature regulating device 1111), that is, the cold releasing end (cold releasing). The specific structure adopted is various, for example, a fluid medium is used as a carrier, the heat absorption end 201 is communicated with the heat exchange device of the heat release end 112 (or the first temperature adjusting device 1111) on the side of the heat storage station 11 by a pipeline by using a heat exchange device, the fluid medium absorbs the heat on the side of the heat storage station 11 (or the first temperature adjusting device 1111), the fluid medium flows to the heat absorption end 201, and the heat absorption end 201 exchanges heat with the medium fluid of the heat release end 202, so that the heat is converted to the heat release end 202. Or, the heat absorbing end 201 is communicated with the heat exchanging device of the cold absorbing end 121 of the cold storage station 12 (or the fourth temperature adjusting device 1221) through a pipeline by using a heat exchanging device, at this time, the heat absorbing end 201 can be understood as a cold releasing end 201, the fluid medium absorbs heat (absorbing heat, namely releasing cold) of the side of the cold storage station 12 (or the fourth temperature adjusting device 1221), the fluid medium flows to the heat absorbing end 201, and the heat absorbing end 201 exchanges heat with the medium fluid of the heat releasing end 202, so that the heat is converted to the heat releasing end 202.

Similarly, the heat releasing end 202 is used for releasing heat to the energy storage station 10 (or the second temperature adjusting device 1121), i.e., a cold absorbing end (cold absorption). The specific structure adopted is various, for example, a fluid medium is used as a carrier, the heat releasing end 202 is communicated with the heat absorbing end 111 (or the second temperature adjusting device 1121) on the side of the heat storage station 11 through a pipeline by using a heat exchanging device, the fluid medium absorbs the heat on the side of the heat storage station 11 (or the second temperature adjusting device 1121), the fluid medium flows to the heat releasing end 202, and the heat releasing end 202 exchanges heat with the medium fluid of the heat absorbing end 201, so that the heat is converted to the heat absorbing end 201. Alternatively, the heat releasing end 202 is communicated with the heat exchanging device of the cold energy releasing end 122 (or the third temperature adjusting device 1211) of the cold energy storage station 12 through a pipeline by using a heat exchanging device, the fluid medium releases heat (releases heat, i.e., absorbs cold energy) to the cold energy storage station 12 side (or the third temperature adjusting device 1211), the fluid medium flows to the heat releasing end 202, and the heat releasing end 202 exchanges heat with the medium fluid of the heat absorbing end 201, so that the heat is converted to the heat absorbing end 201.

That is, when the relay heat exchanger is applied to the cold storage device, the reverse process of the transfer of heat in the relay heat exchanger 20 is the cold transfer, that is, the heat absorption is the cold release.

In an alternative embodiment, the heat absorbing end 201 is embodied by a heat exchanging device, such as a plate heat exchanger, an evaporator, or a heat exchanging coil. The heat releasing end 202 is specifically a heat exchanging device, such as a plate heat exchanger, a condenser, or a heat exchanging coil.

In the first intermediate heat exchanger 20 according to the embodiment of the present invention, the number of the heat absorbing end 201 and the heat releasing end 202, and the arrangement of the external connection pipeline sets of the heat absorbing end 201 and the heat releasing end 202 may be determined according to the number of the connection pipeline sets (which may be referred to as the content of the energy storage device part in the following) of the heat exchange devices on the connection side (the energy storage station side and the temperature adjustment device side).

In an alternative embodiment, the heat absorbing end 201 of the first intermediate heat exchanger 20 of the embodiment of the present invention is one or more, and the piping of each heat absorbing end 201 is independently arranged. For example, the heat absorption end 201 includes one (as shown in fig. 4a, 4b and 4 f) or more (see the heat release end 202 of the intermediate heat exchanger 20 in fig. 4 d) third heat exchange devices, each of which has a liquid inlet pipe 211 and a liquid outlet pipe 212 (i.e., a group of communicating pipe sets 21), and is communicated with the heat exchange device on the side of the energy storage station 10 (or the first temperature adjusting device 1111 or the fourth temperature adjusting device 1221) through two pipes, and heat on the side of the energy storage station 10 (or the first temperature adjusting device 1111 or the fourth temperature adjusting device 1221) is transferred to the heat absorption end 201 by using a fluid medium. That is, each third heat exchanging device is independently communicated with the energy storage station 10 (or the first temperature adjusting device 1111 or the fourth temperature adjusting device 1221). As shown in fig. 4c and 4e, the heat absorption end 201 is a third heat exchange device, and the liquid inlet end of the third heat exchange device is connected to a plurality of liquid inlet pipes 211, and the liquid outlet end of the third heat exchange device is connected to a plurality of liquid outlet pipes 212. One liquid inlet pipe 211 and one liquid outlet pipe 222 are used as a communicating pipe group 21 to form a plurality of independent communicating pipe groups, and the plurality of independent communicating pipe groups are respectively communicated with a third heat exchange device at the side of the external temperature regulating equipment.

In another alternative embodiment, the heat absorbing end 201 is multiple, and the pipelines of the heat absorbing end 201 are communicated with each other. The communication may be performed in many ways as long as a plurality of heat absorbing terminals can be communicated with the energy storage station 10 (or the first temperature adjusting device 1111 or the fourth temperature adjusting device 1221). For example, as shown in fig. 4d, a plurality of heat absorbing ends 201 are communicated with the liquid outlet transit line 222 through the liquid inlet transit line 221, the liquid inlet pipe 211 of each heat absorbing end 201 is communicated with the liquid inlet transit line 221, and the liquid outlet pipe 212 of each heat absorbing end 201 is communicated with the liquid outlet transit line 222. And then the liquid inlet transit pipeline 221 and the liquid outlet transit pipeline 222 are used as a group of communicating pipeline groups and are communicated with the heat exchange device at the side of the energy storage station 10 (or the first temperature adjusting device 1111 or the fourth temperature adjusting device 1221) through two pipelines.

Similarly, when there are one or more heat releasing ends 202, the pipeline of each heat releasing end 202 is independently arranged in the same manner as the heat absorbing end 201. When there are a plurality of heat releasing ends 202, the pipelines of the heat releasing ends 202 are communicated with each other in the same manner as the heat absorbing end 201. And will not be described in detail herein.

Therefore, the first intermediate heat exchanger according to the embodiment of the present invention has the following embodiments according to the arrangement of the pipes at the heat absorbing end 201 and the heat exchanging end 202.

As shown in fig. 4a, the first intermediate heat exchanger i has one heat absorption end 201 and is provided with a communication pipeline group; the number of the heat releasing ends 202 is plural, and the communicating pipe groups of the plural heat releasing ends 202 are independently provided. That is, the pipes of the heat absorbing end 201 and the heat radiating end 202 are independently provided. One path is converted into multiple paths.

As shown in fig. 4b, the first intermediate heat exchanger ii has one heat absorption end 201 and is provided with a communication pipeline group; one heat radiating end 202 is provided, and one heat radiating end 202 has a plurality of communicating pipe groups arranged independently. That is, the pipes of the heat absorbing end 201 and the heat radiating end 202 are independently provided. One path is converted into multiple paths.

As shown in fig. 4c, in the first intermediate heat exchanger iii, there is one heat absorption end 201, and one heat absorption end 201 has a plurality of independently arranged communication pipe sets; the heat release end 202 is one and has one communicating pipe group. That is, the pipes of the heat absorbing end 201 and the heat radiating end 202 are independently provided. And (4) converting the multiple paths into one path.

As shown in fig. 4d, in the first intermediate heat exchanger v, a plurality of heat absorption ends 201 are provided, and the plurality of heat absorption 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) through a group of communication pipe sets; the number of the heat releasing ends 202 is plural, and the communicating pipe groups of the plural heat releasing ends 202 are independently provided. That is, the pipes of the plurality of heat absorbing ends 201 communicate with each other, and the pipes of the plurality of heat radiating ends 202 are independently provided. One path is converted into multiple paths.

As shown in fig. 4e, in the first intermediate heat exchanger iv, one heat absorption end 201 is provided, and one heat absorption end 201 is provided with a plurality of independently arranged communication pipeline sets; one heat radiating end 202 is provided, and one heat radiating end 202 has a plurality of communicating pipe groups arranged independently. That is, the pipes of the heat absorbing end 201 and the heat radiating end 202 are independently provided. And (4) multiplexing the multiple paths.

As shown in fig. 4f, the first intermediate heat exchanger vi has one heat absorption end 201 and is provided with a communication pipeline group; the heat release end 202 is one and has one communicating pipe group. That is, the pipes of the heat absorbing end 201 and the heat radiating end 202 are independently provided. One path is changed into another path.

Of course, the structure of the first intermediate heat exchanger according to the embodiment of the present invention is not limited to the above six, and the structures of the heat absorbing end 201 and the heat releasing end 202 may be interchanged and may be combined arbitrarily. And determining the structure of the adaptive transfer heat exchanger according to the number of the communicating pipeline groups of the heat exchange devices at the communicating sides (the energy storage station side and the temperature regulating equipment side). In addition, when the communicating pipe sets of the heat absorption end 201 (or the heat release end 202) of the first intermediate heat exchanger are multiple, the number is not limited, and the number is determined according to the number of the energy storage stations 10 or the temperature adjusting devices to be connected.

In the first intermediate heat exchanger 20 according to the embodiment of the present invention, the heat exchanging device at the heat absorbing end 201 and the heat exchanging device at the heat releasing end 202 may be separately arranged, for example, when a plate heat exchanger is used, the two heat exchanging devices are arranged oppositely (may be contacted or not contacted), so as to ensure the heat exchanging 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 heat absorption end 201 and the heat exchange device of the heat release end 202 are designed as a whole. The arrangement mode is not limited, and it is sufficient if the heat exchange device of the heat absorption end 201 and the heat exchange device of the heat release end 202 can perform heat transfer. As shown in fig. 4a to 4f, the heat absorbing end 201 and the heat releasing end 202 are all in a contactless type heat exchanging device structure which 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.

In an alternative embodiment, the intermediate heat exchanger 20 further includes a heat absorption valve 231 disposed in series on the pipeline of the heat absorption end 201; and/or, a heat release valve 232 is disposed in series on the line of the heat release end 202. The purpose of the valves is to control the opening or closing of the heat sink 201 and heat sink 202. In a specific embodiment, a heat absorption valve 231 is disposed on the liquid inlet pipe and the liquid outlet pipe of each heat absorption end 201 (each heat exchange device), and a heat release valve 232 is disposed on the liquid inlet pipe and the liquid outlet pipe of each heat release end 202 (each heat exchange device). The opening and closing of the communication pipelines of the heat releasing end 202 and the heat absorbing end 201 of the transfer heat exchanger 20 are controlled by controlling the valves, the energy transfer is adjusted, the energy release of part of the temperature adjusting equipment from the energy storage station 10 can be controlled according to the actual situation, and the energy storage of part of the temperature adjusting equipment box from the energy storage station 10 can also be controlled.

Referring to fig. 4g and 4h, in an embodiment of the present invention, there is further provided a relay heat exchanger, a second relay heat exchanger 30, including: a heat absorption end 301 for communication to an energy storage station 10/temperature conditioning device (e.g., a first temperature conditioning device 1111 or a fourth temperature conditioning device 1221); a heat release end 302 for communicating to a temperature regulating device (e.g., the second temperature regulating device 1121 or the third temperature regulating device 1211)/the energy storage station 10; and, the unidirectional heat-conducting device 31, the heat-absorbing end 301 and the heat-radiating end 302 are disposed at both ends of the unidirectional heat-conducting device 31.

According to the second transfer heat exchanger 30 provided by the embodiment of the invention, by adding the unidirectional heat conduction device 31, accurate energy can be provided for the temperature regulation equipment when the energy storage station releases energy to the temperature regulation equipment at the release end. In addition, it is also applicable when energy transmission between the energy storage station 10 and the temperature control device (the absorption-side temperature control device 1011 or the release-side temperature control device 1021) cannot be performed in a set direction. Generally, when carrying out the heat transfer, can only be from the one end that the temperature is high to the one end that the temperature is low, if this height of temperature in the heat storage station is in the medium temperature of tempering equipment output, and at this moment, the heat storage station still has the capacity of many heat supply volume storages, can't carry out heat storage according to setting for the direction to the heat storage station this moment, can cause the heat loss of heat storage station on the contrary, plays opposite effect. The same problem is encountered when the heat storage station is used for heat release. Therefore, the second intermediate heat exchanger 30 is provided in the embodiment of the present invention, and the temperature of the medium guided from the temperature control device to the heat (or cold) storage station and the temperature of the medium guided from the heat (or cold) storage station to the device are adjusted by the one-way heat conduction device 31, so that it can provide accurate energy to the temperature control device at the releasing end, or the energy storage station 10 and the temperature control device can normally perform heat transfer in a set direction.

The second intermediate heat exchanger 30 according to the embodiment of the present invention is formed by adding a unidirectional heat conducting device 31 between the heat absorbing end and the heat releasing end on the basis of the first intermediate heat exchanger 20. Therefore, the structural arrangement of the absorption end 301 and the heat release end 302 of the second intermediate heat exchanger 30 and the functions thereof are the same as those of the heat absorption end 201 and the heat release end 202 of the first intermediate heat exchanger 20, and reference is made to the foregoing description, and the description thereof will not be repeated.

Therefore, according to the structures of the first intermediate heat exchanger i to the first intermediate heat exchanger vi as shown in fig. 4a to 4f, the unidirectional heat conduction device 31 is added between the heat absorption end and the heat release end, so that the second intermediate heat exchanger i to the second intermediate heat exchanger vi with the heat absorption end and the heat release end corresponding to each other can be sequentially obtained. The second intermediate heat exchanger ii 30 shown in fig. 4g 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. 4h 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 conduction device 31 (forcibly) exchanges heat at the heat absorption end to the heat release end. Specifically, a refrigerant heat exchanger or a semiconductor temperature regulator may be used.

In an alternative embodiment, 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 circuit. The second intermediate heat exchanger 30 includes two heat-absorbing chambers 303 and heat-releasing chambers 304 which are arranged in a heat-insulating manner; the evaporator 311 is disposed opposite to the heat absorbing end 301 of the second intermediate heat exchanger 30 and is disposed in the heat absorbing chamber 303; the condenser 312 is disposed opposite to the heat releasing end 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 heat-releasing chambers 304 which are arranged in a heat-insulating manner; the first end heat exchanger is disposed opposite to the heat absorbing end 301 of the second intermediate heat exchanger 30 and is disposed in the heat absorbing chamber 303; the second end heat exchanger is disposed opposite to the heat releasing end 302 of the second intermediate heat exchanger 30 and is disposed in the heat releasing 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.

When precise energy needs to be supplied to the releasing-end temperature adjusting device, or heat transfer cannot be carried out between the energy storage station 10 and the temperature adjusting device according to a set direction, the one-way heat conduction device 31 is started, heat of the heat absorbing end 301 is forcibly exchanged to the heat releasing end 302, and then the heat is transferred to the energy storage station 10 (or the absorbing-end temperature adjusting device 1011 or the releasing-end temperature adjusting device 1021) through the heat releasing end 302.

The transfer heat exchangers are used for distributing energy released from the energy storage station, the mixing unit neutralizes the energy distributed by the transfer heat exchangers to obtain set energy, and the mixing unit outputs the set energy to the temperature regulating equipment side matched with the set energy. The matched energy can be supplied precisely to the discharge-end tempering device at the energy discharge end of the energy storage station. In particular, a medium of matching temperature may be provided.

In the embodiment of the present invention, the mixing unit 41 is configured to mix media having different energies (temperatures) to obtain a medium having a set energy (set temperature), and then output the medium to the temperature adjusting device (release-end temperature adjusting device 1021). Thus, in one embodiment, as shown in fig. 5a and 5b, mixing unit 41 has two separate chambers, one inlet chamber 411 and the other return chamber 412, inlet chamber 411 having one or more inlet feed tubes 4111 and one or more outlet feed tubes 4112; the return chamber 412 has one or more input outlets 4122 and one or more output inlets 4121. An input liquid inlet pipe 4111 and an input liquid outlet pipe 4122 form an input end communicating pipe group, and an output liquid inlet pipe 4121 and an output liquid outlet pipe 4112 form an output end communicating pipe group. One input end communicating pipeline group is communicated with one output end pipeline group of the transfer heat exchanger, and the other output end pipeline group is communicated with the terminal heat exchange device at the side of the temperature adjusting device. The input end communicating pipe groups of the mixing unit 41 are two or more and are used for communicating with the communicating pipes of the first energy output ends of the two or more transfer heat exchangers. The output end of the mixing unit 41 may be connected to one or more pipelines, and when the output end is connected to one pipeline, the output end is connected to only one terminal heat exchange device of the temperature adjusting device. During the multiunit, communicate with a plurality of thermoregulation equipment's terminal heat transfer device respectively, provide the energy for a plurality of thermoregulation equipment, moreover, at this moment, set up the ooff valve on every output communicating pipe way group, make things convenient for opening and shutting of control part intercommunication pipeline to the realization provides the energy for one or more thermoregulation equipment.

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

1. The control method of the energy system is characterized in that the energy system comprises two or more solar heat collectors and two or more water heaters, and terminal heat exchangers are arranged in the water heaters; the energy system also comprises two or more intermediate heat exchangers and two or more mixing units, wherein the two or more intermediate heat exchangers comprise one or more high-temperature intermediate heat exchangers and one or more low-temperature intermediate heat exchangers; any one of the high-temperature transfer heat exchanger or the low-temperature transfer heat exchanger comprises a heat absorption end and a plurality of heat release ends, the heat absorption end of any one of the high-temperature transfer heat exchanger or the low-temperature transfer heat exchanger is connected to the solar heat collector, and the heat release end of any one of the high-temperature transfer heat exchanger or the low-temperature transfer heat exchanger is connected to the heat absorption ends of different mixing units; the mixing unit comprises two heat absorption ends and a heat release end, one heat absorption end of the mixing unit is connected to the high-temperature transfer heat exchanger, the other heat absorption end of the mixing unit is connected to the low-temperature transfer heat exchanger, the heat release end of the mixing unit is connected to a terminal heat exchanger of a water heater corresponding to the mixing unit, two heat absorption ends of the mixing unit are respectively provided with a heat absorption valve, and the heat release end of the mixing unit is provided with a heat release valve;

the method comprises the following steps:

controlling the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the water heater;

and controlling the opening time of a heat release valve of a mixing unit connected with the water heater according to the difference value between the target temperature and the actual temperature of the water heater.

2. The method as claimed in claim 1, wherein the step of controlling the opening times of two endothermic valves of a mixing unit connected to the water heater, according to the target temperature of the water heater, comprises:

obtaining the target temperature of the medium in the terminal heat exchanger according to the target temperature of the water heater;

and adjusting the opening time of two heat absorption valves of a mixing unit connected with the water heater according to the target temperature of the medium in the terminal heat exchanger.

3. The method of claim 1, further comprising:

acquiring the number of running water heaters;

and controlling heat release valves of a mixing unit connected with the water heaters to open in a time-sharing manner according to the number of the running water heaters.

4. A method according to claim 3, wherein the step of controlling the time-sharing opening of the heat release valve of the mixing unit connected to the water heaters according to the number of water heaters in operation comprises:

and when the number of the running water heaters is less than a preset value, controlling a heat release valve of a mixing unit connected with the water heaters to be opened at all times.

5. A method according to claim 3, wherein the step of controlling the time-sharing opening of the heat release valve of the mixing unit connected to the water heaters according to the number of water heaters in operation comprises:

and when the number of the running water heaters is larger than a preset value, controlling a heat release valve of a mixing unit connected with the water heaters to be opened in a time sharing mode.

6. The method according to claim 5, characterized in that said step of controlling the opening of the branch of the exothermic valves of the mixing units connected to said water heaters when the number of water heaters in operation is greater than a preset value comprises: all water heaters adopt a single-inlet and single-outlet switching mode to carry out circulating heat exchange.

7. The method of claim 1, further comprising:

and controlling the opening time of a heat release valve of a mixing unit connected with each water heater according to the number of the running water heaters and the difference value of the target temperature and the actual temperature of each water heater.

8. Method according to claim 7, characterized in that the opening time of the exothermic valve of the mixing unit connected to the water heater

9. The method of claim 8, wherein the reference on-time t_baseAccording to the number of running water heaters.

10. The method of claim 8, wherein Δ T is_nIs the difference between the target temperature and the actual temperature when the temperature is delta T_nAnd when the temperature is less than or equal to 0, controlling a heat release valve of a mixing unit related to the water heater to be closed.