CN113983526B - Electric heater heating system and method based on phase change energy storage enclosure structure heat insulation - Google Patents
Electric heater heating system and method based on phase change energy storage enclosure structure heat insulation Download PDFInfo
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- CN113983526B CN113983526B CN202111373648.XA CN202111373648A CN113983526B CN 113983526 B CN113983526 B CN 113983526B CN 202111373648 A CN202111373648 A CN 202111373648A CN 113983526 B CN113983526 B CN 113983526B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7675—Insulating linings for the interior face of exterior walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B2001/7691—Heat reflecting layers or coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Abstract
The embodiment of the invention provides an electric heater heating system and method based on phase change energy storage envelope heat insulation. The system comprises an energy storage type electric heater, a controller, a collector, a server and an enclosing structure, wherein the controller is connected with the energy storage type electric heater and the collector respectively, the collector is in communication connection with the server, the enclosing structure comprises a light-transmitting heat-insulating layer and a wall heat-insulating layer, the light-transmitting heat-insulating layer is arranged on the inner layer of the light-transmitting structure of the building, and the wall heat-insulating layer is coated on the inner wall of the wall. The embodiment of the application utilizes the phase change to store energy when the valley electricity, and makes full use of the valley electricity, thereby not only reducing the heating cost, but also reducing the capacity demand on the power grid. The building envelope structure arranged on the building realizes near-infrared transmission and far-infrared reflection, fully utilizes solar energy for heat supply, prevents indoor heat energy from being dissipated, and effectively reduces the consumption of heat supply energy. The heating power is adjusted by controlling the size of the heating air door of the energy storage electric heater, so that the indoor temperature is constant, and comfortable heating is realized.
Description
Technical Field
The invention relates to the field of electric heating control, in particular to a phase change energy storage envelope heat insulation-based electric heater heating system and method.
Background
In the heat supply transformation of old and old residential areas, the electric heater is favored by vast users because of convenient installation. However, because of the limitation of installation space, the general electric heater does not have an energy storage function, so that in use, the low-cost valley electricity can not be fully utilized to save heating cost, and the electric heater can not carry out power peak shifting, thereby reducing the impact on a power grid during heating power utilization. It has been found that in building heating energy consumption, the heat energy lost through the external window accounts for about 23% of the heating energy consumption. The general electric heater heats through its surface heat radiation during its heat supply, and uncontrollable heating output during the heating leads to heating overheated or heating uneven scheduling phenomenon during the use easily.
It should be noted that the above background is only used for assisting understanding of the technical logic of the technical solution, and is not taken as a basis for judging the prior art of the present application.
Disclosure of Invention
The invention aims to provide an electric heater heating system and method based on phase change energy storage envelope heat insulation so as to improve the energy storage and energy saving effects of an electric heater and the heat preservation effect of a building.
In order to achieve the above object, an embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the invention provides an electric heater heating system based on phase change energy storage envelope heat insulation, which comprises an energy storage electric heater, a controller, a collector, a server and an envelope, wherein the controller is respectively connected with the energy storage electric heater and the collector, the collector is in communication connection with the server, the envelope comprises a light-transmitting heat-insulating layer and a wall heat-insulating layer, the light-transmitting heat-insulating layer is arranged on the inner layer of the light-transmitting structure of a building and used for transmitting visible light and near infrared light radiated by the sun into the building and reflecting far infrared light radiated by the energy storage electric heater into the building, and the wall is coated on the inner wall of the wall heat-insulating layer and used for blocking heat energy from being conducted outwards through the wall and reflecting far infrared light radiated by the energy storage electric heater into the building;
the controller is used for acquiring the energy storage of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of the building and sending the indoor temperature to the collector;
the collector is used for sending the energy storage of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of the building to the server;
the server is according to the stored energy of energy storage formula electric heater, the heating air door opening power of energy storage formula electric heater and the indoor temperature of building, calculate the indoor heat dissipation power of building and the indoor surplus heating time of building, and according to predetermined valley electric period and peak electricity period, but combine the indoor surplus heating time of building, it is long and the distribution heating period to confirm the heating of energy storage formula electric heater, it sends to the controller to pass through the collector with length of heating time with confirming, so that the controller is according to the heating period, combine current indoor temperature and set for heating temperature, control the heating of energy storage formula electric heater.
Furthermore, the light-transmitting heat-insulating layer of the building enclosure comprises a reflecting film, the reflecting film is a high-permeability polyester film, and the surface of the high-permeability polyester film is plated with a nano coating, so that the infrared band larger than 4um is reflected, and the infrared band smaller than or equal to 4um can transmit.
Further, the wall heat-insulating layer comprises a primer and a finish, the primer comprises hollow ceramic microparticles, the finish comprises a high infrared reflection material, and the finish is coated on the outer surface of the primer.
Further, the energy storage type electric heater comprises a phase change memory and a measuring system, the phase change memory stores a phase change material, the measuring system comprises an infrared transmitting module, an infrared transmitter, an infrared receiver, a voltage conversion module, a digital signal module, a temperature sensor and a microprocessor, the infrared transmitting module is connected with the infrared transmitter, the infrared transmitter and the infrared receiver are installed in the phase change material, the infrared transmitter and the infrared receiver are located on the same horizontal plane, the infrared receiver is connected with the voltage conversion module, the voltage conversion module is connected with the digital signal module, the microprocessor is respectively connected with the infrared transmitting module and the digital signal module, a temperature sensing end of the temperature sensor is arranged in the phase change material, and the temperature sensor is connected with the digital signal module;
the microprocessor is used for controlling the infrared sending module to generate an infrared signal with preset intensity according to a preset period;
the infrared transmitter is used for transmitting an infrared signal with preset intensity;
the infrared receiver is used for receiving an infrared signal which is sent by the infrared transmitter and penetrates through the phase change material, converting the infrared signal into an output voltage, and outputting the output voltage to the digital signal module through the voltage conversion module;
the digital signal module is used for converting the output voltage into a first digital signal and sending the first digital signal to the microprocessor;
the temperature sensor is used for sensing the temperature of the phase-change material, converting the temperature into a voltage value and outputting the voltage value to the digital signal module, and the digital signal module is also used for converting the voltage value into a second digital signal and sending the second digital signal to the microprocessor;
the microprocessor is used for acquiring the intensity of an infrared signal according to the received first digital signal, acquiring the currently remaining latent heat energy of the phase change material according to a preset relation table between the intensity of the infrared signal and the phase change latent heat energy storage, and acquiring the currently remaining sensible heat energy of the phase change material according to the second digital signal;
the controller is connected with microprocessor, and the controller acquires the stored energy of energy storage formula electric heater and includes: the method comprises the steps of obtaining the current residual latent heat energy of the phase-change material and the current residual sensible heat energy of the phase-change material, and using the sum of the current residual latent heat energy of the phase-change material and the current residual sensible heat energy of the phase-change material as the energy storage energy of the energy storage type electric heater.
Furthermore, the phase change memory also comprises a plurality of metal mesh structures, the metal mesh structures are uniformly distributed in the phase change memory, and two ends of each metal mesh structure are embedded in the side wall of the phase change memory.
Further, the phase change material is an inorganic hydrated salt.
Further, the server combines the indoor surplus heating time of building according to predetermined valley electricity time period and peak electricity time period, confirms the heating duration and the distribution heating time period of energy storage formula electric heater, includes:
when the remaining heating time is in a first time interval, judging whether the current time is a valley power time interval, if so, calculating a first heating time length when the heat of the energy storage type electric heater is full of the energy storage type electric heater, if the first critical time length of the current time from the next peak power time interval is greater than the first heating time length, determining that the heating time interval of the energy storage type electric heater is the current valley power time interval, wherein the heating time length is the first heating time length, if the first critical time length of the current time from the next peak power time interval is less than the first heating time length, determining that the heating time interval of the energy storage type electric heater is the current valley power time interval, wherein the heating time length is the heating time length when the energy storage type electric heater is full of the energy storage type electric heater during the next heating.
Further, when the remaining heating time is in the second time interval, judging whether the current time is the valley electricity time interval;
if the current time is the valley power time period, calculating a second heating time period required by the full heat of the energy storage type electric heater, if the second critical time period of the current time from the next peak power time period is greater than the second heating time period, determining that the heating time period of the energy storage type electric heater is the current valley power time period, and the heating time period is the second heating time period, and if the second critical time period of the current time from the next peak power time period is less than the second heating time period, determining that the heating time period of the energy storage type electric heater is the current valley power time period, and the heating time period is the second critical time period;
if the current time is the peak power period, calculating whether a third critical time period of the current time from the next valley power period is less than the time period of the remaining heatable time, if the third critical duration of the current time from the next valley power period is less than the duration of the remaining heatable time, determining the heating time period of the energy storage type electric heater as the next valley power time period, wherein the heating time period is the heating time period required by the energy storage type electric heater when the energy storage type electric heater is heated next time, if the third critical time length of the current time and the next valley power time interval is longer than the time length of the residual heating time, determining the heating time interval of the energy storage type electric heater as the current peak power time interval and the next valley power time interval, the heating time in the current peak power time period is the time required for prolonging the residual heating time of the energy storage type electric heater to the minimum value of the first time interval, the heating time of the next valley power time period is the heating time of the energy storage type electric heater which is full of the requirement when the next heating is carried out.
Further, when the remaining heating time is within the third time interval, the heating time interval is determined to be the current time interval, and the heating time duration is at least the time duration required for prolonging the remaining heating time of the energy storage type electric heater to the minimum value of the first time interval.
In a second aspect, an embodiment of the invention provides a heat supply method of an electric heater based on phase change energy storage enclosure structure heat insulation, which is applied to a server, the server is in communication connection with a collector, the collector is connected with a controller arranged in a building, the controller is connected with an energy storage electric heater arranged in the building, the building is provided with the enclosure structure, the enclosure structure comprises a light-transmitting heat-insulating layer and a wall heat-insulating layer, the light-transmitting heat-insulating layer is arranged on an inner layer of the light-transmitting structure of the building and used for transmitting visible light and near infrared light radiated by the sun into the building and reflecting far infrared light radiated by the energy storage electric heater in the building, and the wall heat-insulating layer is coated on an inner wall of the wall and used for blocking heat energy from being transmitted outwards through the wall and reflecting far infrared light radiated by the energy storage electric heater in the building. The method comprises the following steps:
receiving the energy storage of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of a building, wherein the energy storage of the energy storage type electric heater, the opening power of the heating air door of the energy storage type electric heater and the indoor temperature of the building are acquired by a controller and are sent to a collector;
calculating heat dissipation power in the building room and remaining heating time in the building room;
determining the heating time of the energy storage type electric heater and distributing the heating time according to the preset valley power time period and peak power time period and the residual heating time in the building room;
the determined heating time period and the heating time period are sent to the controller through the collector, so that the controller can control the energy storage type electric heater to heat according to the heating time period by combining the current indoor temperature and the set heating temperature.
The electric heater heating system and the method based on the phase change energy storage enclosure structure heat insulation provided by the embodiment of the invention store energy by utilizing phase change during off-peak electricity, and fully utilize off-peak electricity, thereby not only reducing the heating cost, but also reducing the capacity demand on a power grid. The building envelope structure arranged on the building realizes near-infrared transmission and far-infrared reflection, fully utilizes solar energy for heat supply, prevents indoor heat energy from dissipating and effectively reduces the consumption of heat supply energy. The heating power is adjusted by controlling the size of the heating air door of the energy storage electric heater, so that the indoor temperature is constant, and comfortable heating is realized.
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 invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a system architecture of a heating system of an electric heater based on phase change energy storage envelope heat insulation provided by an embodiment of the present invention.
Fig. 2 is a schematic view of the wave bands of solar radiation and energy storage type electric heater radiation.
Fig. 3 is a schematic diagram of the heat insulation process of the light-transmitting heat insulation layer of the building envelope according to the embodiment of the invention.
Fig. 4 is a schematic structural view of a wall insulation layer of the envelope structure provided by the embodiment of the invention.
Fig. 5 is a schematic structural diagram of a phase change memory and a measuring system of the energy storage electric heater according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of temperature change of a phase change material in an energy storage electric heater according to an embodiment of the present invention.
Fig. 7 is a schematic architecture diagram of a server according to an embodiment of the present invention.
Fig. 8 is a flowchart of a heat supply method of an electric heater based on phase change energy storage envelope heat insulation according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
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.
Referring to fig. 1, which is a schematic diagram of a system architecture of a valley power application control system for carbon fiber electric heating according to an embodiment of the present invention, the electric heater heating system is applied to a building 150, and the system includes an energy storage electric heater 110, a controller 120, a collector 130, a server 140, and an enclosure, wherein the controller 120 is connected to the energy storage electric heater 110 and the collector 130, respectively. The collector 130 is communicatively coupled to a server 140, such as via a 4G network base station 180.
The building envelope is used for insulating buildings and comprises a light-transmitting heat-insulating layer 160 and a wall heat-insulating layer 170, wherein the light-transmitting heat-insulating layer 160 prevents heat energy from being dissipated outwards from a light-transmitting structure of the building, such as a window, a skylight and other structures, and the wall heat-insulating layer 170 prevents heat energy from being dissipated outwards from a wall. The light-transmitting and heat-insulating layer 160 is disposed on an inner layer of a light-transmitting structure of a building, and is used for transmitting near infrared light radiated by visible light and sun into the building, reflecting far infrared light radiated by the energy storage electric heater 110 into the building, and coating the wall heat-insulating layer 170 on an inner wall of the wall to block heat energy from being conducted outwards through the wall and reflecting the far infrared light radiated by the energy storage electric heater 110 into the building.
The solar radiation on the ground mainly comprises ultraviolet rays, visible light and infrared rays, the wave band of the solar radiation mainly comprises 0.15 um-2.5 um, the radiation energy of the wave band accounts for about 99 percent of the total radiation energy of the sun, wherein 0.76 um-2.5 um is the solar infrared radiation wave band and is generally called near infrared. The radiation wave band when energy storage formula electric heater 110 radiant heating is 8um ~ 15um, and this wave band belongs to the far infrared. The radiation wave bands of the solar radiation and the energy storage type electric heater are shown in figure 2. In this embodiment, the light-transmitting and heat-insulating layer 110 of the enclosure includes a reflective film, the reflective film is a high-permeability polyester film, and a surface of the high-permeability polyester film is plated with a nano-coating, so that the infrared band greater than 4um is reflected, and the infrared band less than or equal to 4um can be transmitted. The process is shown in fig. 3, and the outdoor solar visible light and near infrared radiation can penetrate through the transparent heat insulation layer (window heat insulation layer 303) to reach the indoor space, so that brightness and heat can be provided for the indoor space. The far infrared that indoor energy storage formula electric heater heat supply radiated can be reflected indoor by window insulating layer 303, avoids the loss of energy.
Referring to fig. 4, the wall insulation layer provided by the embodiment of the present application includes a primer and a finish, the primer includes hollow ceramic microparticles, the finish includes a high infrared reflective material, and the finish is coated on an outer surface of the primer. The heat-insulating coating is coated on the wall of a building, a wall heat-insulating layer is formed on the wall, the primer adopts hollow ceramic microparticles, and the hollow heat-insulating layer 402 is formed after the primer is coated on the wall and is used for preventing heat energy from being conducted and lost to the outside. The finish paint is made of a high infrared reflection material and is coated outside the hollow heat insulation layer 402 to form a compact reflection layer 401, so that heat energy is prevented from being radiated outwards and lost.
Referring to fig. 5, the energy storage electric heater 110 provided in the embodiment of the present application uses a phase change material 115 to store energy, a phase change memory 111 containing the phase change material 115 is disposed inside the phase change memory 110, a plurality of metal mesh structures are designed inside the phase change memory 111, and are uniformly distributed in a container of the phase change material 115, and two ends of each metal mesh structure are embedded in a side wall of the phase change memory 111. The metal mesh structure is embedded in the phase change memory 111 on both sides, so that the metal mesh structure is in good contact with the wall of the container, the temperature in the whole container is uniform in the heating and heat releasing process, and the phase change material 115 can fully and uniformly change phase in the using process.
In the heat storage process of the phase change material 115, heat energy is stored in the form of sensible heat and latent heat, the sensible heat storage is realized by the temperature rise of the phase change material 115, the latent heat storage is realized by the phase change process, and the temperature change is not large before and after the phase change. The exothermic process temperature profile is opposite to the regenerative temperature profile. As shown in fig. 6, the heat storage temperature curve is a temperature change of the phase change material when the phase change material is heated with a fixed power, and the heat release temperature curve is a temperature change of the phase change material when the phase change material releases heat with a fixed dissipation power. In view of this temperature change during the phase change material heat storage and release, the present system measures the sensible energy storage of the phase change material 115 via the temperature sensor 119.
As one embodiment, the storage electric heater 110 further includes a measuring system, which includes an infrared transmitting module 112, an infrared transmitter 113, an infrared receiver 114, a voltage converting module 116, a digital signal module 117, a temperature sensor 119, and a microprocessor 118. The infrared transmitting module 112 is connected with the infrared transmitter 113, the infrared transmitter 113 and the infrared receiver 114 are installed in the phase change material 115, the infrared transmitter 113 and the infrared receiver 114 are located on the same horizontal plane, the infrared receiver 114 is connected with the voltage conversion module 116, the voltage conversion module 116 is connected with the digital signal module 117, the microprocessor 118 is respectively connected with the infrared transmitting module 112 and the digital signal module 117, the temperature sensing end of the temperature sensor 119 is arranged in the phase change material 115, and the temperature sensor 119 is connected with the digital signal module 117.
When measuring the stored energy of the phase change material 115, latent heat and sensible heat need to be measured simultaneously, for the latent heat measurement, the microprocessor 118 controls the infrared sending module 1112 to generate an infrared signal with a preset intensity according to a preset period, the infrared transmitter 113 sends the infrared signal with the preset intensity, the infrared signal passes through the phase change material 115 and reaches the infrared receiver 114, the infrared signal passing through the phase change material changes in intensity according to the difference in degree of crystallization of the phase change material 115, the infrared receiver 114 receives the infrared signal passing through the phase change material and converts the infrared signal into an output voltage, the output voltage is output to the digital signal module 117 through the voltage conversion module 116, then the digital signal module 117 converts the output voltage into a first digital signal and sends the first digital signal to the microprocessor 118, a relation table between the infrared signal intensity and the latent heat of phase change energy is preset and established, and the microprocessor 118, according to the received first digital signal, the intensity of the infrared signal can be obtained, and then the current remaining latent heat energy of the phase change material 115 can be obtained according to the relation table between the intensity of the infrared signal and the phase change latent heat energy storage.
For the measurement of the sensible heat of the phase change material 115, firstly, the temperature sensor 119 senses the temperature of the phase change material 115 and converts the temperature into a voltage value, the voltage value is output to the digital signal module 117, the digital signal module 117 converts the voltage value into a second digital signal, and sends the second digital signal to the microprocessor 118, and the microprocessor 118 obtains the currently remaining sensible heat energy of the phase change material 115 according to the second digital signal.
Adding the latent heat energy and the sensible heat energy currently remaining in the phase-change material 115 to obtain the current energy storage of the energy storage electric heater 110.
The controller 120 is connected to the microprocessor 118, and the controller 120 is configured to obtain the energy storage amount of the energy storage electric heater 110, the opening power of the heating damper of the energy storage electric heater, and the indoor temperature of the building, and send the obtained power to the collector 130. It is easy to understand that the heating damper opening power of energy storage electric heater 110 can be directly known from energy storage electric heater 110, and the indoor temperature of building 150 can be sensed by the temperature sensor disposed on energy storage electric heater 110 or the temperature sensor disposed on controller 120, which is not limited in this embodiment.
The collector 130 is configured to transmit the stored energy of the energy-storing electric heater 110, the heating damper opening power of the energy-storing electric heater 110, and the indoor temperature of the building 150 to the server 140.
Referring to fig. 7, an architecture diagram of a server 140 is shown, where the server 140 includes a heating control device 141, a memory 142, a processor 143, and a communication unit 144. The memory 142, processor 143 and communication unit 144 are in direct or indirect electrical communication with each other to enable the transmission or interaction of data. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The heating control device 141 includes at least one software function module which may be stored in the memory 142 in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the cluster server 10. The processor 143 is configured to execute executable modules stored in the memory 142, such as software functional modules and computer programs included in the heating control device 141.
The Memory 142 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Read Only Memory (EPROM), an electrically Erasable Read Only Memory (EEPROM), and the like. The memory 142 is used for storing a program, and the processor 13 executes the program after receiving the execution instruction. The communication unit 144 is used for establishing a communication connection between the server 140 and the collector 130 through a network, and for transceiving data through the network.
The processor 143 may be an integrated circuit chip having signal processing capabilities. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP)), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The heat dissipation power inside the building 150 can be calculated using known techniques, for example, using the following notations:
Pn＝(Sn1×Kn1+Sn2×Kn2+Sn3×Kn3+Sn4×Kn4)×(T-TQ)；
Qn＝∫Pndt；
where Pn and Qn represent the dissipated power of the building, Sn1Represents the area of the top surface of the building, Sn2Denotes the area of the floor of the building, Sn3Denotes the external wall area of the building's facade, Sn4Representing the external wall area, Kn, of the building's shade1Representing the dissipated power of the top surface of the building, Kn2Representing the dissipated power, Kn, of the floor of the building3Representing the dissipated power, Kn, of the building's sunny side exterior wall4Represents the external wall power dissipation of the building shadow, T represents the indoor temperature, TQIndicating the outdoor temperature.
The remaining heatable time in the room of building 150 may be calculated according to the energy storage of electric storage heater 110 and the current opening power of heating damper, for example, t ═ W/(Q-Qn), where t is the remaining heatable time and Q is the current opening power of heating damper of electric storage heater 110.
The server 140 is further configured to determine a heating duration of the energy storage electric heater and allocate a heating time period according to a preset valley power time period and a preset peak power time period and by combining with a remaining heating time in the building 150, and send the determined heating time period to the controller 120 through the collector 130, so that the controller 120 controls the energy storage electric heater to heat according to the heating time period, the current indoor temperature and the set heating temperature.
As an embodiment, the server 140 determines the heating time of the energy storage electric heater and allocates the heating time according to the preset valley power time period and peak power time period and the remaining heating time in the building, which may be as follows:
and when the residual heating time is in the first time interval, judging whether the current time is the valley electricity time interval. In the embodiment of the present application, the first time interval is a longer time, which indicates that the storage electric heater 110 can continue to supply heat for a longer time, for example, 8-12 hours. If the current time is the valley power time period, calculating a first heating time period required by the heat of the energy storage type electric heater 110 when the heat is full, and if the first critical time period of the current time from the next peak power time period is longer than the first heating time period, determining that the heating time period of the energy storage type electric heater is the current valley power time period, and the heating time period is the first heating time period. The first critical time length refers to a time difference between the current time and the next peak power period, for example, currently 8: 00am, next peak power period 10: 00am, the first critical duration is 2 h. If the first critical duration of the current time from the next peak power period is less than the first heating duration, the heating duration of the energy storage type electric heater 110 is determined as the current valley power period, and the heating duration is the first critical duration. For example, if the first heating time period is 3h, the first critical time period is 2h, and the heating time period is 2 h. If the current time is not the valley power time period, the heating time period of the energy storage type electric heater is determined to be the next valley power time period, and the heating time period is the heating time period when the energy storage type electric heater is full of the required heating time period when the energy storage type electric heater is heated next time. For example, the first heating time period required for energy storage electric heater 110 to be filled currently is 3h, the next off-peak time period is temporary, the heating time period required for energy storage electric heater 110 to be filled becomes 5h, and then the heating time period is 5h when the next off-peak time period is temporary. Because the remaining heating time is in the first time interval, the energy of energy-storing warmer 110 is sufficient, in order to save cost, the policy of peak load shifting is responded, and when energy-storing warmer 110 can normally provide heat energy, the heat accumulation in the peak electricity time interval is avoided as much as possible.
As another embodiment, when the remaining heatable time is in the second time interval, it is determined whether the current time is the valley power period. In the embodiment of the present application, the second time interval is a general time length, which indicates that the time for which the energy storage type electric heater 110 can continuously supply heat is at a medium level, for example, 4 to 8 hours. Under the situation, if the current time is the valley power time period, calculating a second heating time period required by the full heat of the energy storage type electric heater, if the second critical time period of the current time from the next peak power time period is greater than the second heating time period, determining that the heating time period of the energy storage type electric heater is the current valley power time period, and the heating time period is the second heating time period, and if the second critical time period of the current time from the next peak power time period is less than the second heating time period, determining that the heating time period of the energy storage type electric heater is the current valley power time period, and the heating time period is the second critical time period. If the current time is the peak power period, calculating whether a third critical time period of the current time from the next valley power period is less than the time period of the remaining heatable time, if the third critical duration of the current time from the next valley power period is less than the duration of the remaining heatable time, determining the heating time period of the energy storage type electric heater as the next valley power time period, the heating time period is the heating time period required by the energy storage type electric heater when heating next time, if the third critical time length of the current time and the next valley power time interval is longer than the time length of the residual heating time, determining the heating time interval of the energy storage type electric heater as the current peak power time interval and the next valley power time interval, the heating time in the current peak power time period is the time required for prolonging the residual heating time of the energy storage type electric heater to the minimum value of the first time interval, the heating time of the next valley electricity time interval is the heating time of the energy storage type electric heater which is full of the requirement when the next heating is carried out.
As another embodiment, when the remaining heatable time is in the third time interval, it indicates that the remaining heat of the energy storage electric heater 110 is insufficient, and heat needs to be stored immediately to ensure heat supply, at this time, no matter the current time is in the peak power time period or the valley power time period, heat needs to be stored, the heating time period is determined to be the current time period, and in order to save cost, the valley power advantage is utilized, and the heating duration is at least the duration required when the remaining heatable time of the energy storage electric heater is extended to the minimum value of the first time interval.
In addition, an embodiment of the present application further provides an electric heater heat supply method based on phase change energy storage envelope heat insulation, which is applied to a server, please refer to fig. 8, and the method includes the following steps:
and step S1, receiving the energy storage of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of the building, wherein the energy storage of the energy storage type electric heater, the opening power of the heating air door of the energy storage type electric heater and the indoor temperature of the building are acquired by the controller and sent to the collector.
In step S2, the heat dissipation power in the building interior and the remaining heatable time in the building interior are calculated.
And step S3, determining the heating time of the energy storage type electric heater and distributing the heating time according to the preset valley power time period and peak power time period and the residual heating time in the building.
And step S4, sending the determined heating time interval to the controller through the collector, so that the controller controls the energy storage type electric heater to heat according to the heating time interval by combining the current indoor temperature and the set heating temperature.
Since the principles and processes involved in the steps of the method have been described in the foregoing, they will not be described in detail here.
In summary, the embodiment of the invention provides an electric heater heating system and method based on phase change energy storage enclosure heat insulation, energy storage is performed during off-peak electricity by utilizing phase change, off-peak electricity is fully utilized, heating cost is reduced, and capacity requirements on a power grid are reduced. The building envelope structure arranged on the building realizes near-infrared transmission and far-infrared reflection, fully utilizes solar energy for heat supply, prevents indoor heat energy from being dissipated, and effectively reduces the consumption of heat supply energy. The heating power is adjusted by controlling the size of the heating air door of the energy storage electric heater, so that the indoor temperature is constant, and comfortable heating is realized.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative and, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, 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 necessarily 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, article, 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, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be understood that, for technical terms that are not noun explanations to the above-mentioned contents, a person skilled in the art can deduce and unambiguously determine the meaning of the present invention according to the above-mentioned disclosure, for example, for some values, coefficients, weights and other terms, a person skilled in the art can deduce and determine according to the logical relationship before and after, the value range of these values can be selected according to the actual situation, for example, 0 to 1, for example, 1 to 10, for example, 50 to 100, but not limited thereto, and a person skilled in the art can unambiguously determine some preset, reference, predetermined, set and target technical features/technical terms according to the above-mentioned disclosure. For some technical characteristic terms which are not explained, the technical solution can be clearly and completely implemented by those skilled in the art by reasonably and unambiguously deriving the technical solution based on the logical relations in the previous and following paragraphs. The foregoing will therefore be clear and complete to those skilled in the art. It should be understood that the process of deriving and analyzing technical terms, which are not explained, by those skilled in the art based on the above disclosure is based on the contents described in the present application, and thus the above contents are not an inventive judgment of the overall scheme.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. 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.
Claims (5)
1. The utility model provides an electric heater heating system based on phase change energy storage envelope is thermal-insulated, is applied to the building, its characterized in that, the system includes energy storage formula electric heater, controller, collector, server and envelope, wherein, the controller respectively with energy storage formula electric heater with the collector is connected, collector and server communication connection, envelope includes printing opacity insulating layer and wall body heat preservation, printing opacity insulating layer sets up in the printing opacity structure inlayer of building for near infrared light transmission to the building in with visible light and sun radiation, and with the far infrared reflection of energy storage formula electric heater radiation in the building, printing opacity insulating layer includes the reflectance coating, the reflectance coating is high permeability polyester film, the nano-coating has been plated on the surface of high permeability polyester film for the infrared band that is greater than 4um is reflected, the infrared wave band smaller than or equal to 4 microns can be transmitted, the wall heat-insulating layer is coated on the inner wall of the wall and used for preventing heat energy from being conducted outwards through the wall and reflecting far infrared light radiated by the energy storage type electric heater in the building, the wall heat-insulating layer comprises primer and finish, the primer comprises hollow ceramic microparticles, the finish comprises a high-infrared-reflection material, and the finish is coated on the outer surface of the primer;
the controller is used for acquiring the stored energy of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of the building and sending the stored energy, the opening power of the heating air door of the energy storage type electric heater and the indoor temperature of the building to the collector;
the collector is used for sending the energy storage of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of the building to the server;
the server calculates the indoor heat dissipation power of the building and the indoor residual heating time of the building according to the energy storage amount of the energy storage type electric heater, the opening power of a heating air door of the energy storage type electric heater and the indoor temperature of the building, determines the heating time of the energy storage type electric heater and distributes the heating time according to the preset valley power time period and peak power time period and combines the indoor residual heating time of the building, and sends the determined heating time period and the determined heating time period to the controller through the collector so that the controller controls the energy storage type electric heater to heat according to the heating time period, the current indoor temperature and the set heating temperature, wherein the heating time period of the energy storage type electric heater is determined and distributes the heating time period according to the preset valley power time period and peak power time period and combines the residual heating time in the building, the method comprises the following steps:
when the remaining heating time is in the first time interval, judging whether the current time is the valley electricity time interval, if the time is in the valley power period, calculating a first heating time length required by the full heat of the energy storage type electric heater, if the first critical time length of the current time and the next peak power period is greater than the first heating time length, determining the heating time period of the energy storage type electric heater as the current valley power time period, the heating time period is the first heating time period, if the first critical time period of the current time and the next peak power time period is less than the first heating time period, determining the heating time period of the energy storage type electric heater as the current valley power time period, the heating time period is the first critical time period, if the current time is not the valley power time period, determining that the heating time period of the energy storage type electric heater is the next valley power time period, wherein the heating time period is the heating time period required by the energy storage type electric heater when the energy storage type electric heater is fully heated next time;
when the remaining heating time is in a second time interval, judging whether the current time is a valley power time interval, if the current time is the valley power time interval, calculating a second heating time length required for the energy storage type electric heater to be fully filled with heat, if the second critical time length of the current time from the next peak power time interval is greater than the second heating time length, determining that the heating time interval of the energy storage type electric heater is the current valley power time interval, and the heating time length is the second heating time length, if the second critical time length of the current time from the next peak power time interval is less than the second heating time length, determining that the heating time interval of the energy storage type electric heater is the current valley power time interval, and the heating time length is the second critical time length, if the current time is the peak power time interval, calculating whether the third critical time length of the current time from the next valley power time interval is less than the remaining heating time length, if the third critical time of the current time from the next valley power time period is less than the time of the remaining heating time, determining that the heating time period of the energy storage type electric heater is the next valley power time period, and the heating time period is the heating time period required by the energy storage type electric heater during the next heating, if the third critical time of the current time from the next valley power time period is greater than the time of the remaining heating time, determining that the heating time period of the energy storage type electric heater is the current peak power time period and the next valley power time period, wherein the heating time period of the current peak power time period is the time period required for prolonging the remaining heating time of the energy storage type electric heater to the minimum value of the first time period, and the heating time period of the next valley power time period is the heating time period required for fully filling the energy storage type electric heater during the next heating;
when the remaining heating time is within the third time interval, determining that the heating time interval is the current time interval, wherein the heating time interval is at least the time interval needed when the remaining heating time of the energy storage type electric heater is prolonged to the minimum value of the first time interval.
2. The electric heater heating system according to claim 1, wherein the energy storage electric heater includes a phase change memory and a measuring system, the phase change memory stores a phase change material, the measuring system includes an infrared transmitting module, an infrared transmitter, an infrared receiver, a voltage conversion module, a digital signal module, a temperature sensor and a microprocessor, the infrared transmitting module is connected to the infrared transmitter, the infrared transmitter and the infrared receiver are installed in the phase change material, the infrared transmitter and the infrared receiver are located on the same horizontal plane, the infrared receiver is connected to the voltage conversion module, the voltage conversion module is connected to the digital signal module, the microprocessor is respectively connected to the infrared transmitting module and the digital signal module, a temperature sensing end of the temperature sensor is disposed in the phase change material, the temperature sensor is connected with the digital signal module;
the microprocessor is used for controlling the infrared sending module to generate an infrared signal with preset intensity according to a preset period;
the infrared transmitter is used for transmitting the infrared signal with the preset intensity;
the infrared receiver is used for receiving the infrared signal which is sent by the infrared transmitter and penetrates through the phase change material, converting the infrared signal into output voltage and outputting the output voltage to the digital signal module through the voltage conversion module;
the digital signal module is used for converting the output voltage into a first digital signal and sending the first digital signal to the microprocessor;
the temperature sensor is used for sensing the temperature of the phase-change material, converting the temperature into a voltage value and outputting the voltage value to the digital signal module, and the digital signal module is also used for converting the voltage value into a second digital signal and sending the second digital signal to the microprocessor;
the microprocessor is used for acquiring the intensity of the infrared signal according to the received first digital signal, acquiring the currently remaining latent heat energy of the phase change material according to a preset relation table between the intensity of the infrared signal and the phase change latent heat energy storage, and acquiring the currently remaining sensible heat energy of the phase change material according to the second digital signal;
the controller with microprocessor connects, the controller acquires the stored energy of energy storage formula electric heater includes: and acquiring the current residual latent heat energy of the phase change material and the current residual sensible heat energy of the phase change material, and taking the sum of the current residual latent heat energy of the phase change material and the current residual sensible heat energy of the phase change material as the energy storage energy of the energy storage type electric heater.
3. The electric heater heating system according to claim 2, wherein the phase change memory further comprises a plurality of metal mesh structures, the metal mesh structures are uniformly distributed in the phase change memory, and two ends of each metal mesh structure are embedded in the side wall of the phase change memory.
4. The electric heater heating system according to claim 3, wherein the phase change material is an inorganic hydrated salt.
5. A heat supply method of an electric heater based on phase change energy storage enclosure heat insulation is applied to a server and is characterized in that the server is in communication connection with a collector, the collector is connected with a controller arranged in a building, the controller is connected with an energy storage type electric heater arranged in the building, the building is provided with the enclosure, the enclosure comprises a light-transmitting heat-insulating layer and a wall heat-insulating layer, the light-transmitting heat-insulating layer is arranged in a light-transmitting structure inner layer of the building and used for transmitting near infrared light radiated by visible light and sun into the building and reflecting far infrared light radiated by the energy storage type electric heater into the building, the light-transmitting heat-insulating layer comprises a reflecting film, the reflecting film is a high-permeability polyester film, the surface of the high-permeability polyester film is plated with a nano coating, so that an infrared waveband larger than 4um is reflected, less than or equal to 4 um's infrared band can transmit, wall body heat preservation coat in the interior wall of wall body for hinder heat energy and pass through the wall and outwards conduct, and will the far-infrared light reflection of energy storage formula electric heater radiation is in the building, wall body heat preservation includes priming paint and finish paint, the priming paint includes cavity ceramic microparticle, the finish paint includes high infrared reflective material, coat in the surface of priming paint, the method includes:
receiving the energy storage of the energy storage type electric heater, the opening power of a heat supply air door of the energy storage type electric heater and the indoor temperature of the building, wherein the energy storage of the energy storage type electric heater, the opening power of the heat supply air door of the energy storage type electric heater and the indoor temperature of the building are acquired by the controller and are sent to the collector;
calculating the heat dissipation power in the building room and the remaining heating time in the building room;
according to the preset valley power time period and peak power time period, the heating time of the energy storage type electric heater is determined and the heating time period is distributed by combining the residual heating time in the building room, and the method comprises the following steps: when the remaining heating time is in the first time interval, judging whether the current time is the valley electricity time interval, if the time interval is the valley power time interval, calculating a first heating time interval required by the full heat of the energy storage type electric heater, if a first critical time interval between the current time and the next peak power time interval is longer than the first heating time interval, determining the heating time period of the energy storage type electric heater as the current valley power time period, the heating time period as the first heating time period, if the first critical time period of the current time from the next peak power time period is less than the first heating time period, determining the heating time period of the energy storage electric heater as the current valley power time period, the heating time period is the first critical time period, if the current time is not the valley power time period, determining that the heating time period of the energy storage type electric heater is the next valley power time period, and the heating time period is the heating time period required by the energy storage type electric heater when the energy storage type electric heater is fully heated next time;
when the remaining heating time is in a second time interval, judging whether the current time is in a valley power time interval, if the current time is in the valley power time interval, calculating a second heating time length required by the full heat of the energy storage type electric heater, if the second critical time length of the current time from the next peak power time interval is longer than the second heating time length, determining that the heating time interval of the energy storage type electric heater is in the current valley power time interval, the heating time length is the second heating time length, if the second critical time length of the current time from the next peak power time interval is shorter than the second heating time length, determining that the heating time interval of the energy storage type electric heater is in the current valley power time interval, the heating time length is the second critical time length, and if the current time is in the peak power time interval, calculating whether a third critical time length of the current time from the next valley power time interval is shorter than the remaining heating time interval or not, if the third critical time of the current time from the next valley power time period is less than the time of the remaining heating time, determining that the heating time period of the energy storage type electric heater is the next valley power time period, and the heating time period is the heating time period required by the energy storage type electric heater during the next heating, if the third critical time of the current time from the next valley power time period is greater than the time of the remaining heating time, determining that the heating time period of the energy storage type electric heater is the current peak power time period and the next valley power time period, wherein the heating time period of the current peak power time period is the time period required for prolonging the remaining heating time of the energy storage type electric heater to the minimum value of the first time period, and the heating time period of the next valley power time period is the heating time period required for fully filling the energy storage type electric heater during the next heating;
when the remaining heating time is in a third time interval, determining that the heating time interval is a current time interval, wherein the heating time interval is at least a time interval required for prolonging the remaining heating time of the energy storage type electric heater to the minimum value of the first time interval;
and the determined heating time period are sent to the controller through the collector, so that the controller controls the energy storage type electric heater to heat according to the heating time period and by combining the current indoor temperature and the set heating temperature.
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| CN113374118A (en) * | 2021-07-01 | 2021-09-10 | 中国人民解放军军事科学院国防工程研究院 | Novel phase-change energy-saving wall based on active and passive adjustment technology |
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