CN214276020U - Active flexible adjustment energy system suitable for low-energy-consumption building - Google Patents
Active flexible adjustment energy system suitable for low-energy-consumption building Download PDFInfo
- Publication number
- CN214276020U CN214276020U CN202120372739.0U CN202120372739U CN214276020U CN 214276020 U CN214276020 U CN 214276020U CN 202120372739 U CN202120372739 U CN 202120372739U CN 214276020 U CN214276020 U CN 214276020U
- Authority
- CN
- China
- Prior art keywords
- energy
- pump unit
- heat pump
- energy system
- building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The embodiment of the application provides an active flexible energy system who adjusts suitable for low energy consumption building, this energy system includes: a heat pump unit; the ground radiation device is connected with the heat pump unit; the surface cooler is connected with the heat pump unit and used for dehumidifying air under the condition that the heat pump unit is used for refrigerating; the phase-change energy storage device is arranged adjacent to or at intervals with the ground radiation device and used for storing energy in the electricity utilization valley period and releasing energy in the electricity utilization peak period. By means of the technical scheme, the embodiment of the application can meet the requirements of low-energy-consumption buildings.
Description
Technical Field
The application relates to the technical field of building energy conservation, in particular to an active flexible adjustment energy system suitable for a low-energy-consumption building.
Background
With the development of economy, the world faces huge energy and environmental crisis, and due to the characteristics of cleanness and flexibility, distributed renewable energy sources are increased in scale in China. The generating capacity of renewable energy in China is gradually increased by more than 50% in 2040 years, and reaches about 67% in 2050 years, so that an energy consumption system taking electricity as a center is formed in China.
Building energy consumption is the main body of energy consumption in China all the time. Under the large background of energy conservation and emission reduction, building energy in China is gradually developed towards low energy consumption, and finally approaches to zero or even realizes zero consumption, and the cold and heat loads of the building have the characteristics of greatly reduced peak value and accumulated value and more uneven space-time distribution. Under the vigorous development of low-energy-consumption buildings and the formation of energy consumption systems with electricity as the center in China, a building energy system capable of reducing building energy consumption is a future development trend.
However, the existing building energy systems and optimization are mainly aimed at the existing high-energy-consumption buildings, and most of the buildings adopt high-grade cold and heat sources (such as coal) to supply cold and heat, so that the building energy systems and optimization are not completely suitable for low-energy-consumption buildings developed in the future.
Therefore, under an energy consumption system taking electricity as a center, an active flexible adjustment energy system aiming at a low-energy-consumption building is urgently needed at present, the low-energy-consumption energy supply requirement of the building is met, and meanwhile, the peak regulation of a power grid is realized through an active flexible adjustment mode.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the present application is to provide an energy system suitable for active flexible adjustment of a low energy consumption building, so as to provide an energy system suitable for a low energy consumption building.
The embodiment of the application provides an active flexible energy system who adjusts suitable for low energy consumption building, this energy system includes: a heat pump unit; the ground radiation device is connected with the heat pump unit; the surface cooler is connected with the heat pump unit and used for dehumidifying air under the condition that the heat pump unit is used for refrigerating; the phase-change energy storage device is arranged adjacent to or at intervals with the ground radiation device and used for storing energy in the electricity utilization valley period and releasing energy in the electricity utilization peak period.
Therefore, by means of the characteristic of low building load with low energy consumption, the heat pump unit and the phase change energy storage device are combined, so that the temperature of the heating water in winter of the energy system can be reduced, the temperature of the cooling water in summer of the energy system can be increased, the working point of the traditional heat pump unit is changed, the operating efficiency of the system is increased under the condition that indoor comfort is guaranteed, and the requirement of a low-energy-consumption building can be met.
The energy system in the embodiment of the application adopts a flexible adjustment technology, stores energy in the electricity consumption valley period through the phase-change energy storage device, releases energy in the electricity consumption peak period, and decouples the refrigeration or heating capacity provided by the phase-change energy storage device and the time of the building load to realize load matching between the energy system and the building load characteristic, so that the power grid can be effectively balanced, accurate consumption of renewable energy can be realized, and the problems of higher unbalance rate of the power grid and lower utilization rate of the renewable energy existing in the existing building energy system are solved. In addition, because this application embodiment carries out the storage of energy at power consumption low ebb time through phase change energy storage device to release energy at power consumption peak time, thereby can reduce the difference between power consumption peak time and power consumption low ebb time, and then realized the peak regulation of electric wire netting.
And, this application embodiment still can improve indoor comfort level, reduce indoor mechanical parts, noise reduction through combining ground radiation device and surface formula cooler. In winter, the adoption of the ground radiation device reduces the demand grade, promotes the energy consumption of the system, improves the working interval of the equipment, divides the indoor sensible heat load and latent heat load into quality treatment in summer, and improves the comprehensive energy efficiency of the system while ensuring the comfort level. And the tail end of the sensible heat load has larger thermal inertia, and is further strengthened after being combined with the phase change energy storage device, so that the heat-storage heat.
In one possible embodiment, the heat pump unit comprises an evaporator, wherein the evaporator comprises a first supercooling section and a first non-supercooling section; the surface cooler is connected with the first supercooling section, and the ground radiation device is connected with the first non-supercooling section.
In one possible embodiment, the energy system further comprises: the water dividing and collecting device is respectively connected with the first non-supercooling section and the ground radiation device.
In one possible embodiment, the energy system further comprises: the solar heat collector is connected with the water collecting and distributing device.
In one possible embodiment, the energy system further comprises: a grid device; the photovoltaic module is connected with the heat pump unit, the surface cooler and the power grid device through the inverter respectively, and the photovoltaic module is used for supplying power to the heat pump unit and the surface cooler and conveying the residual electric quantity to the power grid device.
In one possible embodiment, the energy system further comprises: the ammeter is respectively connected with the inverter, the heat pump unit, the surface cooler and the power grid device.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic diagram illustrating an active flexible adjustment energy system suitable for a low energy consumption building according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an interior of a heat pump unit under a cooling condition according to an embodiment of the present disclosure;
fig. 3 shows an internal schematic diagram of a heat pump unit under a heating condition according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
At present, the existing building energy system has at least the following three problems: the construction and optimization of the existing building energy system mainly aim at the existing high-energy-consumption buildings, and the cold and heat supply of the buildings is mostly realized by adopting high-grade cold and heat sources (such as coal and the like). However, the existing building energy system is not suitable for low-energy-consumption buildings developed in the future;
and the environment control all-in-one machine (or environment control all-in-one machine) which is generally adopted by the current low-energy-consumption building solves the cold and hot requirements by taking air supply as a medium. However, this method has the disadvantages of low thermal comfort, high indoor noise and low efficiency;
and the energy demand of buildings in China and the power generation of renewable energy sources have great inconsistency. For the existing building energy system, the building is used as a passive energy source from the power grid or other energy carriers to meet the requirement of the building, and the method is not suitable for the development of the future building energy system. That is to say, the traditional building energy system often adopts the passive regulation technology according to the energy supply condition, resulting in the disadvantages of high unbalance rate of the power grid, low utilization rate of renewable energy, and the like.
Based on the above, the embodiment of the application skillfully provides an active flexible adjustment energy system suitable for a low-energy-consumption building, and the energy system comprises a heat pump unit; the ground radiation device is connected with the heat pump unit; the surface cooler is connected with the heat pump unit and used for dehumidifying air under the condition that the heat pump unit is used for refrigerating; the phase-change energy storage device is arranged adjacent to or at intervals with the ground radiation device and used for storing energy in the electricity utilization valley period and releasing energy in the electricity utilization peak period. The energy can be cold energy or heat energy.
Therefore, by means of the characteristic of low building load with low energy consumption, the heat pump unit and the phase change energy storage device are combined, so that the temperature of the heating water in winter of the energy system can be reduced, the temperature of the cooling water in summer of the energy system can be increased, the working point of the traditional heat pump unit is changed, the operating efficiency of the system is increased under the condition that indoor comfort is guaranteed, and the requirement of a low-energy-consumption building can be met.
The energy system in the embodiment of the application adopts a flexible adjustment technology, stores energy in the electricity consumption valley period through the phase-change energy storage device, releases energy in the electricity consumption peak period, and decouples the refrigeration or heating capacity provided by the phase-change energy storage device and the time of the building load to realize load matching between the energy system and the building load characteristic, so that the power grid can be effectively balanced, accurate consumption of renewable energy can be realized, and the problems of higher unbalance rate of the power grid and lower utilization rate of the renewable energy existing in the existing building energy system are solved.
And, this application embodiment still can improve indoor comfort level, reduce indoor mechanical parts, noise reduction through combining ground radiation device and surface formula cooler. In winter, the adoption of the ground radiation device reduces the demand grade, promotes the energy consumption of the system, improves the working interval of the equipment, divides the indoor sensible heat load and latent heat load into quality treatment in summer, and improves the comprehensive energy efficiency of the system while ensuring the comfort level. And the tail end of the sensible heat load has larger thermal inertia, and is further strengthened after being combined with the phase change energy storage device, so that the heat-storage heat.
To facilitate understanding of the embodiments of the present application, some terms related to the embodiments of the present application are first explained herein as follows:
"low energy consumption building": the building comprehensively selects various energy-saving technologies in aspects of building envelopes, energy and equipment systems, illumination, intelligent control, renewable energy utilization and the like, has energy consumption level far lower than that of a building of a conventional building, and is a building which does not use or uses primary energy as little as possible and uses renewable energy.
That is, a low energy consumption building means a building with low building load and energy consumption.
"active compliance adjustment": the phase-change energy storage device for the energy system can perform active power utilization adjustment according to conditions of a power grid or a photovoltaic module and the like, so that the flexibility of the power grid is enhanced, the consumption of renewable energy is promoted, and the power grid is balanced.
Referring to fig. 1, fig. 1 shows a schematic diagram of an active flexible adjustment energy system suitable for a low energy consumption building according to an embodiment of the present application. The energy system shown in fig. 1 comprises a heat pump unit 101 for heating or cooling, a ground radiation device 102 for heating or cooling a building by radiation, a surface cooler 105 for dehumidifying air in case the heat pump unit 101 is used for cooling, and a phase change energy storage device 103 for storing energy during off-peak periods and releasing energy during peak periods. The surface cooler 105 and the ground radiation device 102 are respectively connected with the heat pump unit 101, and the phase change energy storage device 103 and the ground radiation device 102 are arranged adjacently or at intervals.
It should be understood that the specific devices of the heat pump unit 101 (for example, the model number of the heat pump unit 101, etc.), the specific device of the ground radiation device 102, the specific device of the surface cooler 105, the specific device of the phase change energy storage device 103, etc. may be set according to actual needs, and the embodiment of the present application is not limited thereto.
For example, the heat pump unit 101 may be a geothermal heat source pump, an air source pump, or the like.
As another example, the ground radiation device 102 may be a coiled pipe buried under the floor.
For another example, the phase change energy storage device 103 may be a phase change energy storage layer made of a phase change energy storage material.
It should also be understood that since the phase change energy storage device 103 stores energy from the heat pump unit 101, the phase change energy storage device 103 may also be referred to as a heat pump energy storage device.
It should also be understood that the installation location of the heat pump unit 101, the installation location of the ground radiation device 102, the installation location of the surface cooler 105, the installation location of the phase change energy storage device 103, and the like can be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, with continued reference to fig. 1, the heat pump unit 101 may be located outside of a building, the surface cooler 105 may be located on a wall within the building, and both the ground radiation device 102 and the phase change energy storage device 103 may be located below the floor within the building. Wherein, the building can also be provided with a door window 112, and the door window 112 can realize sun shading and natural lighting.
It should also be understood that the connection manner of the heat pump unit 101 and the ground radiation device 102 can be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, the heat pump unit 101 may be connected to the surface radiation device 102 via a water diversion and collection device 104. The water distributor 104 can be used to distribute hot water or cold water from the heat pump unit 101 to the coils of the ground radiation device 102 buried under the ground.
It should be noted that, although the above description is made by taking the connection manner of the heat pump unit 101 and the ground radiation device 102 as an example, it should be understood by those skilled in the art that the connection of the other two devices in the energy system in the embodiment of the present application is also similar, and will not be described one by one subsequently.
For example, the heat pump unit 101 may be directly connected to the surface cooler 105, or may be connected to the surface cooler 105 by another device.
For another example, please refer to fig. 2, and fig. 2 shows an internal schematic diagram of a heat pump unit under a refrigeration condition according to an embodiment of the present application. As shown in fig. 2, the heat pump unit includes a condenser 210, a compressor 220, an evaporator 230, and an expansion valve 240. Wherein, the condenser 210 and the evaporator 230 may be respectively connected with the compressor 220, and the condenser 210 and the evaporator 230 may also be respectively connected with the expansion valve 240. And, the evaporator 230 may include a first supercooling section 231 and a first non-supercooling section 232, and the first supercooling section 231 may be connected to the surface cooler 105 to be connected to the surface cooler 105 for dehumidification, and the first non-supercooling section 232 may be connected to the water collecting and distributing device 104 to be connected to the water collecting and distributing device 104 for cooling.
Therefore, in order to prevent the situation that the requirement of indoor humidity cannot be guaranteed due to excessively high supply water temperature in summer, the embodiment of the present application may fully utilize the low-temperature condition of the first supercooling section 231 of the evaporator 230 of the heat pump unit under the refrigeration condition in summer, and perform heat exchange between the medium (e.g., aqueous solution, etc.) in the surface cooler 105 and the low-temperature refrigerant in the first supercooling section 231 of the evaporator 230, so as to achieve the purpose of low-temperature water supply of the surface cooler 105, and further achieve the dehumidification function in the building.
For another example, please refer to fig. 3, and fig. 3 shows an internal schematic diagram of a heat pump unit under a heating condition according to an embodiment of the present application. As shown in fig. 3, the heat pump unit includes an evaporator 310, a compressor 320, a condenser 330, and an expansion valve 340. Wherein, the evaporator 310 and the condenser 330 may be connected to the compressor 320, respectively, and the evaporator 310 and the condenser 330 may also be connected to the expansion valve 340, respectively. And, the condenser 330 may include a second subcooling section 331 and a second non-subcooling section 332, and the second subcooling section 331 is connected to the surface cooler 105, and under heating conditions, since dehumidification is not required at this time, a switch on a pipe connected to the surface cooler 105 is in a closed state, and the second non-subcooling section 332 is connected to the water collector 104.
Therefore, by means of the technical scheme, the heat supply can be achieved.
It should be noted that, although fig. 2 and 3 are separately described, it should be understood by those skilled in the art that the water sub-collector 104 may be connected to the first non-subcooling section 232 and the second non-subcooling section 332, respectively, and the surface cooler 105 may be connected to the first subcooling section 231 and the second subcooling section 331, respectively, and the embodiments of the present application are not limited thereto.
For another example, the ground radiation device 102 and the phase change energy storage device 103 may be disposed adjacent to each other, in a direct-fit manner (for example, the phase change energy storage device 103 may be disposed above the ground radiation device 102, and no other layer or other device is disposed between the phase change energy storage device 103 and the ground radiation device 102; for another example, the phase change energy storage device 103 may be disposed on the left and right sides of the ground radiation device 102, and no other layer or other device is disposed between the phase change energy storage device 103 and the ground radiation device 102), or may be disposed at intervals (for example, the phase change energy storage device 103 may be disposed on the left and right sides of the ground radiation device 102, and a heat dissipation layer may be disposed between the phase change energy storage device 103 and the ground radiation device 102, so as to achieve rapid energy storage of the phase change energy storage device 103).
In order to facilitate understanding of the embodiments of the present application, the following description will be given by way of specific examples.
Specifically, during the off-peak period of the electricity consumption, the heat pump unit 101 can operate because the electricity price at this time is relatively low. And the heat pump unit 101 can supply circulating hot water or cold water to the ground radiation device 102 through a pipeline, and the phase change energy storage device 103 can store energy at the moment.
And in the peak period of power utilization, a valve on a pipeline between the heat pump unit 101 and the water collecting and distributing device 104 can be closed (or the heat pump unit 101 can also be closed), and at the moment, the heat or cold can be released through the phase change energy storage device 103. The phase change energy storage device 103 can realize low temperature heat supply at a first temperature and high temperature heat supply at a second temperature or higher.
It should be understood that the specific time period corresponding to the electricity utilization valley period and the specific time period corresponding to the electricity utilization peak period may be set according to actual needs, and the embodiments of the present application are not limited thereto.
For example, in the case where policies in different regions are different, electricity consumption valley periods in different regions or electricity consumption peak periods in different regions may be different.
It should be noted that the daily electricity utilization period may include a power utilization period in addition to the electricity utilization valley period and the electricity utilization peak period, and in the power utilization period, the specific manner of heating or the specific manner of cooling in the embodiment of the present application may be set according to the actual demand, and the embodiment of the present application is not limited thereto.
It should also be understood that the specific temperature of the first temperature and the specific temperature of the second temperature may be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, the first temperature may be 25 ℃ and the second temperature 18 ℃.
In addition, the heat pump unit 101 in the embodiment of the present application may be used for heating or cooling, and in the case where the heat pump unit 101 is used for cooling, the embodiment of the present application may also perform dehumidification through the surface cooler 105.
Therefore, in the context of low-energy-consumption buildings, the embodiment of the application provides an active flexible adjustment energy system suitable for low-energy-consumption buildings, the energy system realizes high-temperature water supply in summer and low-temperature heat supply in winter of the buildings by combining a heat pump unit 101 and a phase-change energy storage device 103, and provides a building load processing mode combining a surface cooler 105 and a ground radiation device 102 by optimizing the structure of the energy system and combining the characteristics of the low-energy-consumption buildings, and indoor sensible heat load and latent heat load are subjected to quality processing in summer, so that the comprehensive energy efficiency of the energy system is improved while the comfort level is ensured. Compared with the traditional building energy system, the energy system in the embodiment of the application can improve the utilization rate of renewable energy and reduce the operating cost of the energy system.
In addition, the energy system in the embodiment of the present application may adopt renewable energy sources such as geothermal energy, air energy, and solar energy (for example, the energy source of the heat pump unit 101 may be geothermal energy or air energy; for example, the energy source of the photovoltaic module 108 may be solar energy, and the like hereinafter) as a low-grade heat source of a building, and by using an active flexible adjustment technology (storage of cold or heat, bidirectional interaction between the grid device 107 and the energy system) of the energy system of the building, load matching between the energy system and the load characteristic of the building is realized by decoupling the cooling or heating capacity time provided by the heat pump unit 101 and the time of the load of the building, so that the operation cost of the energy system is reduced, the grid is effectively balanced, and accurate absorption of the renewable energy sources is realized.
In addition, during peak periods, the energy system conveniently feeds the power grid device 107 with electrical energy through the photovoltaic module 108, thereby reducing the need for the power grid device 107 to enable a peak shaver power plant to generate power during peak periods. At the electricity consumption low ebb period, the energy system adopts the mode cold storage or the heat-retaining of phase change energy storage device 103, increases the power consumption demand of building, releases energy at the power consumption peak period, has balanced the electric wire netting demand for the electric wire netting is more stable.
With continued reference to fig. 1, the energy system further comprises a solar collector 106 for providing heat. Wherein the solar collector 106 can be connected with the water collector 104.
It should be understood that the specific device of the solar collector 106 can be set according to actual requirements, and the embodiment of the present application is not limited thereto.
It should also be understood that the installation position of the solar collector 106 can be set according to actual requirements, and the embodiment of the present application is not limited thereto.
In addition, the energy system in the embodiment of the present application may be combined with the more general solar collector 106, and when the heat collecting temperature of the solar collector 106 exceeds the temperature threshold, the heat collecting temperature may be considered to be higher, so that the solar collector 106 may directly supply to the water collector 104. However, when the heat collecting temperature of the solar heat collector 106 is lower than the temperature threshold, the heat collecting temperature may be considered to be relatively low, so that the solar heat collector 106 may input the medium (for example, water) to be heated into the heat pump unit 101 for heating, and then heat supply to the building or energy storage may be performed.
It should be understood that the specific value of the temperature threshold may be set according to actual requirements, and the embodiment of the present application is not limited thereto.
In addition, the energy system can also realize the comprehensive utilization of various renewable energy sources such as heat energy, solar energy and the like, and greatly improves the utilization rate of the renewable energy sources of the energy system.
With continued reference to fig. 1, the energy system further includes a power grid device 107 for supplying power to the devices in the energy system and also storing the residual power of the solar power generation, and a photovoltaic module 108 for supplying power to the devices in the energy system (for example, the heat pump unit 101 or the surface cooler 105) by the solar power generation and obtaining power by the solar power generation and storing the residual power after the power supply in the power grid device 107. The photovoltaic module 108 may be connected to a device (e.g., the heat pump unit 101 or the surface cooler 105) requiring power supply in the energy system and the grid device 107 through the inverter 109.
It should be understood that the specific devices of the grid device 107 and the photovoltaic module 108, etc. may be set according to actual needs, and the embodiments of the present application are not limited thereto.
It should also be understood that the installation location of the power grid device 107 and the installation location of the photovoltaic module 108, etc. may be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, with continued reference to fig. 1, the photovoltaic module 108 may be disposed on the roof of a building.
It should also be understood that the connection manner of the inverter 109 and the grid device 107 may also be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, the inverter 109 may be directly connected to the grid device 107.
For another example, with continued reference to fig. 1, the energy system further includes an electricity meter device 110 for displaying the amount of electricity and an electrical outlet device 111 for electrically connecting devices in the energy system (e.g., the heat pump unit 101 and the surface cooler 105, etc.). The electric meter device 110 may be electrically connected to the inverter 109, the outlet device 111, and the grid device 107, respectively.
It should also be understood that the specific device of the electric meter device 110, the specific device of the socket device 111, and the like can be set according to actual requirements, and the embodiment of the present application is not limited thereto.
It should also be understood that the installation position of the electric meter device 110, the installation position of the socket device 111, and the like can be set according to actual requirements, and the embodiment of the present application is not limited thereto.
Therefore, the energy system in the embodiment of the application can reasonably set the photovoltaic module 108 to generate power according to the field conditions, the building load and the power demand, and can convert the generated direct current into the alternating current through the inverter 109, so that the converted alternating current can supply power for the devices in the energy system. And, in case the electric energy generated by the photovoltaic module 108 exceeds the electricity demand of the building, the remaining electric energy (i.e. the remaining electric energy is the total electric energy generated by the photovoltaic module 108 minus the electricity demand of the devices in the energy system) can be transmitted to the power grid device 107 by means of internet access. And, when the power generation capacity of the photovoltaic module 108 cannot meet the power demand of the low energy consumption building, the energy system can meet the power demand through the grid device 107. That is to say, the energy system in the embodiment of the present application can realize the bidirectional transmission of electric energy.
It should be noted that, although fig. 1 shows various devices of the energy system, it should be understood by those skilled in the art that the devices may be added according to actual needs, and the embodiments of the present application are not limited thereto.
For example, the energy system may include a control device that can switch between heating and cooling.
In order to facilitate understanding of the embodiments of the present application, the following description will be given by way of specific examples.
Specifically, referring to fig. 1, one side of the heat pump unit 101 is connected to the surface cooler 105, and the other side of the heat pump unit 101 is connected to one side of the water diversion and collection device 104; the solar collector 106 is connected to one side of the water collector 104, and can directly supply heat when the heat collecting temperature is high. And, when the heat pump unit 101 is a micro ground source heat pump unit, the solar thermal collector 106 can be connected with the buried pipe through the water source buffer tank and the heat pump unit 101 by switching the valve, so as to provide a low-level heat source; the other side of the water collecting and distributing device 104 is connected with a ground radiation device 102 in the building; under the refrigeration working condition, the first supercooling section of the evaporator of the heat pump unit 101 is connected with the surface cooler 105 through a high-temperature water supply and return pipeline in summer. And, the electricity-using devices such as the heat pump unit 101, the surface cooler 105, etc. are connected to the grid device 107 through the outlet device 111; the photovoltaic module 108 is connected with an electricity meter device 110 through an inverter 109; the electric meter device 110 may also be connected to the grid device 107.
In addition, the energy system that is applicable to active flexible regulation of low energy consumption building that this application embodiment provided can realize following three kinds of winter heating operation modes. Specifically, the method comprises the following steps:
utilize photovoltaic module 108 to realize that daytime multisource energy storage releases simultaneously: under the condition of sufficient illumination in the daytime, the heat pump unit 101 and the solar heat collector 106 are combined with the phase change energy storage device 103 to supply heat to the room. In the meantime, the power consumption of the heat pump unit 101, the circulating water pump and other electric equipment can be satisfied by the power generation of the photovoltaic module 108, and the redundant power generated by the photovoltaic module 108 is fed into the power grid device 107;
night energy storage is realized by using the power grid device 107: by implementing peak shifting and valley filling, the heat can be produced by the heat pump unit 101 in the power consumption valley period at night, the heat produced by the heat pump unit 101 is stored by the phase-change energy storage device 103, and the heat can be released by the phase-change energy storage device 103 to supply heat to a room in the daytime power consumption peak period;
the photovoltaic module 108 is simultaneously combined with the phase change energy storage device 103 to release energy independently: in the peak period of power utilization, the heat pump unit 101 is closed, and the phase change energy storage device 103 flexibly heats the room. During the period, the power consumption of the electric equipment such as the circulating water pump is satisfied by the electric energy generated by the photovoltaic module 108, and the surplus power can be fed into the power grid device 107.
Here, the three heating methods may be realized individually or in combination, and the embodiment of the present invention is not limited to this.
In addition, the active flexible adjustment energy system suitable for the low-energy-consumption building can realize the following three summer cooling operation modes. Specifically, the method comprises the following steps:
utilize photovoltaic module 108 to realize daytime multisource energy storage and release simultaneously: under the condition of sufficient illumination in the daytime, the heat pump unit 101 supplies cold. Where the indoor floor radiating unit 102 primarily takes on the sensible heat load in the room and the surface cooler 105 primarily takes on the latent heat load in the room. During operation, the power consumption of the heat pump unit 101, the surface cooler 105, the circulating water pump and other electric equipment is met by power generation of the photovoltaic module 108, and redundant power generated by the photovoltaic module 108 is fed into the power grid device 107;
night energy storage is realized by using the power grid device 107: by implementing peak shifting and valley filling, the heat pump unit 101 is used for refrigerating at night in the electricity consumption valley period, the phase change energy storage device 103 is used for storing cold energy prepared by the heat pump unit 101, and the phase change energy storage device 103 can release energy to supply cold to a room in the electricity consumption peak period in the daytime;
dehumidification with photovoltaic modules 108 and surface cooler 105 while phase change energy storage device 103 alone releases energy: during peak hours, the heat pump unit 101 and the surface cooler 105 take on latent heat load in the room. The phase change energy storage device 103 supplies cold to the room and takes charge of the sensible heat load in the room. In the meantime, the power consumption of the heat pump unit 101, the surface cooler 105, the circulating water pump and other electric devices is satisfied by the power generation of the photovoltaic module 108, and the surplus power generated by the photovoltaic module 108 is transmitted to the power grid device 107.
It should be noted here that the three cooling manners may be implemented separately or in combination, and the embodiment of the present application is not limited to this.
It should be noted that, although the building energy system is shown above, it should be understood by those skilled in the art that the building energy system may also be configured according to actual needs, and the embodiments of the present application are not limited thereto.
For example, the building energy system further comprises a control device, and the control device can be used for controlling the heat exchange mode and the cold supply mode.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. An active compliance regulated energy system suitable for low energy consumption buildings, comprising:
a heat pump unit;
the ground radiation device is connected with the heat pump unit;
the surface cooler is connected with the heat pump unit and used for dehumidifying air under the condition that the heat pump unit is used for refrigerating;
the phase change energy storage device and the ground radiation device are arranged adjacently or at intervals, and the phase change energy storage device is used for storing energy in the electricity utilization valley period and releasing the energy in the electricity utilization peak period.
2. The energy system of claim 1, wherein the heat pump unit comprises an evaporator comprising a first subcooling section and a first non-subcooling section;
the surface cooler is connected with the first supercooling section, and the ground radiation device is connected with the first non-supercooling section.
3. The energy system of claim 2, further comprising:
and the water dividing and collecting device is respectively connected with the first non-supercooling section and the ground radiation device.
4. The energy system of claim 3, further comprising:
and the solar heat collector is connected with the water collecting and distributing device.
5. The energy system of claim 1, further comprising:
a grid device;
the photovoltaic module is connected with the heat pump unit, the surface cooler and the power grid device through inverters respectively, and is used for supplying power to the heat pump unit and the surface cooler and conveying residual electric quantity to the power grid device.
6. The energy system of claim 5, further comprising:
and the electric meter is respectively connected with the inverter, the heat pump unit, the surface cooler and the power grid device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120372739.0U CN214276020U (en) | 2021-02-09 | 2021-02-09 | Active flexible adjustment energy system suitable for low-energy-consumption building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120372739.0U CN214276020U (en) | 2021-02-09 | 2021-02-09 | Active flexible adjustment energy system suitable for low-energy-consumption building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214276020U true CN214276020U (en) | 2021-09-24 |
Family
ID=77790310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120372739.0U Active CN214276020U (en) | 2021-02-09 | 2021-02-09 | Active flexible adjustment energy system suitable for low-energy-consumption building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214276020U (en) |
-
2021
- 2021-02-09 CN CN202120372739.0U patent/CN214276020U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100545521C (en) | Solar energy and building integrated compound energy system | |
| CN202382474U (en) | Solar-energy-and-geothermy-integrated storage, heating and refrigerating system | |
| CN203501534U (en) | Combined system of energy storage ground source heat pump and solar energy | |
| CN102252454B (en) | Combined type renewable building energy source supplying system | |
| CN101825073A (en) | Distributed solar energy cascade utilization system | |
| CN101832611A (en) | Optically, electrically and geothermally integrated air conditioning system device | |
| CN107024032B (en) | Heat and cold supply system | |
| CN110145796A (en) | A kind of micro- energy net of solar energy support | |
| CN114165831A (en) | Zero-energy-consumption BIPV/T method based on photovoltaic and photo-thermal comprehensive utilization system | |
| CN214276020U (en) | Active flexible adjustment energy system suitable for low-energy-consumption building | |
| CN115751746A (en) | Zero-carbon energy supply system of shallow layer and middle and deep layer geothermal energy coupling light storage system | |
| CN107272438B (en) | Intelligent household control system based on renewable energy and control method thereof | |
| CN112856637A (en) | Active flexible adjustment energy system suitable for low-energy-consumption building | |
| CN202101470U (en) | Composite type renewable building energy supplying system | |
| CN210267481U (en) | Solar-supported micro-energy grid | |
| CN201673399U (en) | Building energy intelligentized central control system | |
| CN106230351A (en) | Plateau type multiple renewable energy sources combines power supply, energy supplying system | |
| CN1403760A (en) | Multiple complementary energy source system | |
| CN210292426U (en) | Multi-energy complementary energy supply system | |
| CN209840338U (en) | Air conditioning system applying renewable energy | |
| US20100005730A1 (en) | Building energy storage and conversion apparatus | |
| CN111854230A (en) | Split type composite ground source heat pump heating and cooling system | |
| CN102243490A (en) | Intelligentized central control system for building energy sources | |
| CN206023660U (en) | The joint power supply of plateau type multiple renewable energy sources, energy supplying system | |
| CN110762598A (en) | Novel warm braw heating system who combines solar energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |