A rotary phase change energy storage fresh air handling unit energy storage device based on time-of-use electricity price response

Abstract

The present application relates to the technical fields of fresh air ventilation and energy-saving and energy-storing equipment, and discloses a rotating phase-change energy-storing fresh air unit energy-storing device based on response to time-of-use electricity price. The device comprises a box body and a rotating main shaft connected to the box body, the main shaft is driven by an external rotating driving mechanism, a partitioning plate is fixed to the outer wall of the main shaft to divide the space into upper and lower energy-storing cavities, corresponding air flow interfaces are formed on the two sides of the box body to communicate with the upper and lower cavities, phase-change energy-storing pipe bundle units are fixedly installed in the upper and lower energy-storing cavities, the pipe bundles are filled with phase-change materials and wrapped with electric heating wires, and the end portions of the pipe bundles are provided with electric heating wire terminals, and an intelligent control box is electrically connected to the driving mechanism and the wire terminals. The device realizes continuous operation of air return heat storage and fresh air heat release through cavity overturning alternation, combines intelligent control response to time-of-use electricity price, uses valley electricity for electric auxiliary heat storage, effectively reduces the overall operation cost, and greatly improves the heat exchange efficiency and energy utilization rate of the system.

Description

Technical Field

[0001] This invention relates to the field of fresh air exchange and energy-saving energy storage equipment, and in particular to a rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response. Background Technology

[0002] With the increasing demands for indoor air quality in modern buildings, fresh air units have become crucial equipment for maintaining a healthy indoor environment. In frigid or winter conditions, directly introducing cold outdoor air into the building significantly increases the heating load. Therefore, heat recovery devices are commonly incorporated into fresh air systems to preheat incoming outdoor air by extracting waste heat from the exhaust air. Traditional heat exchangers often employ static cross-flow or counter-flow sensible heat exchange cores, whose heat exchange process relies entirely on the real-time temperature difference during airflow contact, making it difficult to store heat at high density.

[0003] To improve the density and efficiency of heat recovery, phase change energy storage technology has begun to be applied to the field of fresh air heat exchange. However, existing phase change energy storage heat exchange structures often adopt a fixed box design, with the airflow channels and heat exchange modules positioned relatively statically. This fixed structure makes it difficult for the heat storage (absorbing heat from the return air) and heat release (heating outdoor fresh air) processes to be carried out efficiently and continuously in the same space, easily causing fluctuations in the fresh air heating temperature and lacking the continuity of continuous heat exchange.

[0004] More importantly, in extremely low-temperature environments, simply recovering waste heat from indoor return air is often insufficient to heat fresh air to a comfortable temperature, typically requiring the activation of electric auxiliary heating equipment. However, the control logic of existing fresh air energy storage devices is relatively simple and fails to effectively integrate with the grid's time-of-use pricing policy. During peak electricity consumption periods, the equipment often passively activates electric heating based on ambient temperature demand, unable to utilize low-cost electricity during off-peak or flat-peak hours for proactive pre-heat storage. This results in high overall system energy consumption and economic costs, and fails to align with the grid's "peak shaving and valley filling" energy-saving strategy. This low energy utilization rate and high operating costs due to the fixed heat exchange structure and lack of a smart grid response mechanism have become the core technological bottleneck restricting the widespread adoption of phase change energy storage fresh air systems.

[0005] Therefore, this invention proposes a rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response to address the shortcomings of existing technologies. Summary of the Invention

[0006] To overcome the above shortcomings, this invention provides a rotary phase change energy storage device for fresh air units based on time-of-use pricing. It aims to improve the problems in the prior art where the heat exchange structure of rotary phase change energy storage devices based on time-of-use pricing is relatively fixed, resulting in a lack of continuity in the heat recovery and release process, and the failure to effectively combine the grid's time-of-use pricing policy for low-cost active auxiliary energy storage, thus leading to high overall system operating costs and low energy utilization.

[0007] To achieve the above objectives, the present invention provides a rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response, comprising: an energy storage device housing, and a rotating main shaft rotatably connected to the center of the energy storage device housing; a rotating drive mechanism disposed on the outside of the energy storage device housing, a partition plate fixed to the outer wall of the rotating main shaft, an upper energy storage chamber and a lower energy storage chamber formed by the partition plate, respectively connected to the upper airflow interface and the upper opposing airflow interface inside the upper energy storage chamber, respectively connected to the lower airflow interface and the lower opposing airflow interface inside the lower energy storage chamber, a phase change energy storage tube bundle unit fixedly installed inside the upper energy storage chamber and the lower energy storage chamber, a tube bundle electric heating terminal disposed at the end of the phase change energy storage tube bundle unit, an electric heating wire disposed inside the phase change energy storage tube bundle unit, and an intelligent control box fixedly installed on the outer wall of the energy storage device housing.

[0008] The partition plate tightly divides the internal space carried by the rotating spindle into an upper energy storage chamber and a lower energy storage chamber that operate independently of each other. The upper airflow interface and the upper opposing airflow interface are respectively opened on both sides of the upper part of the energy storage device box, and the lower airflow interface and the lower opposing airflow interface are respectively opened on both sides of the lower part of the energy storage device box. The heating wire inside the phase change energy storage tube bundle unit is electrically connected to the tube bundle heating terminal at the end.

[0009] Furthermore, the rotary drive mechanism is connected to the end of the rotary spindle to provide overall rotation power, the upper energy storage chamber and the lower energy storage chamber are both fixedly connected to the rotary spindle, and the intelligent control box is electrically connected to the rotary drive mechanism and the tube bundle electric heating terminal, thereby realizing the overall control of the alternating rotation action of the chamber and the electric auxiliary heating sequence during off-peak electricity price periods.

[0010] Preferably, the rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response further includes a tube bundle support component. The tube bundle support component is fixedly installed inside the upper energy storage chamber and the lower energy storage chamber. The phase change energy storage tube bundle unit is fixedly connected to the tube bundle support component, thereby providing a stable physical support foundation for the internal tube bundle array during the process of the chamber rotating and alternating as a whole with the main shaft.

[0011] Preferably, the bottom end of the tube bundle support member is vertically fixed to the surface of the partition plate, and multiple tube bundle support members are arranged at equal intervals along the length direction of the partition plate. This array-type support structure can evenly distribute the overall weight of the tube bundle onto the partition plate, avoiding stress concentration.

[0012] Preferably, the phase change energy storage tube bundle unit passes through the tube bundle support member and is fixedly connected to the tube bundle support member by a snap-fit. This interlocking and snap-fit ​​limiting method further enhances the overall seismic performance and deformation stiffness of the internal energy storage heat exchange structure.

[0013] Preferably, the outer wall of the phase change energy storage tube bundle unit is fixedly fitted with tube bundle fins, which greatly expand the physical contact area on the outside of the core tube bundle, thereby playing a strong heat exchange role when air flows over the surface.

[0014] Preferably, the multiple tube bundle fins are distributed at equal intervals along the axial direction of the phase change energy storage tube bundle unit. The regular and dense arrangement can effectively break the thermal resistance of the airflow boundary layer and improve the overall convective heat transfer coefficient without significantly increasing the airflow resistance.

[0015] Preferably, the phase change energy storage tube bundle unit is filled with phase change material, which tightly wraps around the outside of the heating wire. The tight internal covering structure ensures that when the heating wire is energized and generates heat, the heat energy can be quickly and evenly absorbed by the surrounding phase change material, thereby maximizing the auxiliary energy storage rate of the conversion of electrical energy into latent heat.

[0016] Preferably, the upper airflow interface and the upper opposing airflow interface are symmetrically and horizontally arranged on the upper part of the energy storage device box, and the lower airflow interface and the lower opposing airflow interface are symmetrically and horizontally arranged on the lower part of the energy storage device box. The symmetrically distributed interface position layout effectively avoids the generation of local eddies or deflection when indoor and outdoor airflow enters or exits their respective energy storage chambers, ensuring the uniformity and stability of the heat exchange flow field.

[0017] The present invention has the following beneficial effects:

[0018] 1. This invention, by setting a rotating main shaft in conjunction with partition plates to tightly divide the interior of the energy storage device into an upper energy storage chamber and a lower energy storage chamber, and by using a rotating drive mechanism to drive the rotating main shaft to rotate and interchange the two chambers as a whole, solves the problems of fixed heat exchange structure and lack of continuity in heat recovery and release processes in existing fresh air units. It achieves the technical effect of simultaneously storing indoor return air heat and releasing outdoor fresh air heat in the same device, and continuously outputting preheated fresh air by alternating the chambers, thereby greatly improving the operating efficiency of the unit.

[0019] 2. This invention solves the problem of high overall operating costs and low energy utilization caused by existing technologies failing to effectively utilize off-peak electricity prices for low-cost auxiliary energy storage, by filling the phase change energy storage tube bundle unit with phase change material and wrapping it with heating wire, and by using an intelligent control box to receive time-of-use electricity price signals from the external power grid in real time to coordinate the start and stop of the heating wire. It achieves the technical effect of automatically connecting the electric auxiliary heating to accelerate energy storage during off-peak or normal electricity periods and automatically cutting off the power to prevent overheating when the storage is full, thereby realizing peak shaving and valley filling of power load and significantly reducing the daily electricity cost of the system.

[0020] 3. This invention solves the problems of unstable connections caused by concentrated deformation of internal heat exchange components during the alternating flipping process and low heat exchange efficiency caused by insufficient airflow contact area in existing devices by using tube bundle support components to vertically connect and engage with partition plates within the energy storage cavity and by uniformly spaced tube bundle fins on the outer wall of the tube bundle. This achieves the technical effect of enhancing the overall support stiffness and anti-vibration performance of the internal energy storage tube bundle array, and using regularly arranged fins to effectively turbulently increase the physical heat exchange area by multiple times, thus significantly improving the overall heat exchange efficiency of the system. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response proposed in this invention;

[0022] Figure 2 This is a side view of the energy storage device for a rotary phase change energy storage fresh air unit based on time-of-use electricity price response proposed in this invention.

[0023] Figure 3 This is a cross-sectional schematic diagram of the rotating main shaft of a rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response proposed in this invention.

[0024] Figure 4 This is a schematic diagram of the partition plate of a rotary phase change energy storage fresh air unit based on time-of-use electricity price response proposed in this invention.

[0025] Figure 5 This is a cross-sectional schematic diagram of the energy storage device housing of a rotary phase change energy storage fresh air unit based on time-of-use electricity price response proposed in this invention.

[0026] Legend:

[0027] 1. Energy storage device housing; 2. Upper energy storage chamber; 3. Lower energy storage chamber; 4. Upper airflow interface; 5. Upper opposing airflow interface; 6. Lower airflow interface; 7. Lower opposing airflow interface; 8. Rotating spindle; 9. Partition plate; 10. Rotary drive mechanism; 11. Intelligent control box; 12. Phase change energy storage tube bundle unit; 13. Tube bundle electric heating terminal; 14. Tube bundle fins; 15. Tube bundle support component. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figures 1-5 This invention provides a rotary phase change energy storage device for fresh air handling units based on time-of-use electricity price response, aiming to solve the problem of low energy utilization rate caused by the fixed and discontinuous heat exchange structure of existing fresh air handling units and the failure to effectively utilize the time-of-use electricity price of the power grid for low-cost auxiliary energy storage.

[0030] like Figures 1 to 4 As shown, the rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response includes an energy storage device housing 1 and a rotary main shaft 8 rotatably connected to the center of the energy storage device housing 1. The energy storage device housing 1 plays the role of overall load-bearing and internal space sealing protection. The rotary main shaft 8, as the core rotary support pivot, carries the internal heat exchange structure to perform the flipping action. A rotary drive mechanism 10 is fixedly installed on the outside of the energy storage device housing 1. The rotary drive mechanism 10 is connected to the end of the rotary main shaft 8 through transmission. The rotary drive mechanism 10 receives external control signals and provides the power source required for the rotary main shaft 8 to flip.

[0031] A partition plate 9 is fixedly connected to the outer wall of the rotating spindle 8, which tightly divides the internal space of the rotating spindle 8 into an upper energy storage chamber 2 and a lower energy storage chamber 3. Both the upper energy storage chamber 2 and the lower energy storage chamber 3 are fixedly connected to the rotating spindle 8. The physical isolation of the partition plate 9 ensures that the upper energy storage chamber 2 and the lower energy storage chamber 3 form independent and non-interfering airflow channels. The upper sides of the energy storage device housing 1 are respectively provided with an upper airflow interface 4 and an upper opposing airflow interface 5 that connect to the interior of the upper energy storage chamber 2. The lower part has two sides respectively with a lower airflow interface 6 and a lower opposing airflow interface 7 that connect to the lower energy storage chamber 3. The upper airflow interface 4 and the upper opposing airflow interface 5 are symmetrically arranged horizontally. The four interfaces provide inlet and outlet channels for indoor return air and outdoor fresh air, so that there is an independent chamber corresponding to the fresh air side and the return air side in any working state, so as to realize the continuous heat recovery and release process in conjunction with the rotation action of the rotating main shaft 8.

[0032] Both the upper energy storage chamber 2 and the lower energy storage chamber 3 are fixedly installed with phase change energy storage tube bundle units 12. The end of the phase change energy storage tube bundle unit 12 is fixedly provided with a tube bundle electric heating terminal 13. The phase change energy storage tube bundle unit 12 is provided with an electric heating wire that is electrically connected to the tube bundle electric heating terminal 13. The outer wall of the energy storage device box 1 is fixedly installed with an intelligent control box 11. The intelligent control box 11 is electrically connected to the rotary drive mechanism 10 and the tube bundle electric heating terminal 13. The phase change energy storage tube bundle unit 12, as the core heat storage carrier, realizes high-density latent heat storage by utilizing the melting and solidification process of the internal phase change material and uses the electric heating wire to provide auxiliary heating during off-peak hours. The intelligent control box 11, as the central brain of the device, receives the grid time-of-use price signal in real time and coordinates the heating sequence and the alternating flipping action of the upper and lower chambers.

[0033] Both the upper energy storage chamber 2 and the lower energy storage chamber 3 are fixedly installed with tube bundle support members 15. The bottom end of the tube bundle support member 15 is vertically fixedly connected to the surface of the partition plate 9. The tube bundle support members 15 are arranged at equal intervals along the length of the partition plate 9. The phase change energy storage tube bundle unit 12 passes through the tube bundle support member 15 and is engaged and fixedly connected with the tube bundle support member 15. The tube bundle support member 15 provides a stable physical support for the phase change energy storage tube bundle unit 12 inside the energy storage chamber. The array-type through-and-connected structure ensures the high stability and structural rigidity of the phase change energy storage tube bundle unit 12 during the overall flipping and alternation process of the chamber.

[0034] The outer wall of the phase change energy storage tube bundle unit 12 is fixedly fitted with tube bundle fins 14. The tube bundle fins 14 are evenly distributed along the axial direction of the phase change energy storage tube bundle unit 12. The tube bundle fins 14 greatly expand the heat exchange area on the outside of the tube bundle and play a strong turbulence role when the air flows through, thereby significantly improving the overall heat exchange efficiency between the airflow and the phase change energy storage tube bundle unit 12. The phase change energy storage tube bundle unit 12 is filled with phase change material. The phase change material is wrapped around the outside of the heating wire, so that when the heating wire is energized, the heat can be quickly and evenly transferred to the surrounding phase change material, thereby accelerating the melting and heat storage process of the phase change material from solid to liquid.

[0035] Regarding the specific internal transmission component settings that provide power to the rotary drive mechanism 10, those skilled in the art use conventional methods such as motors and reducers to achieve this. The specific internal structure is well-known in the art and will not be described in detail here.

[0036] Based on the above embodiments, the rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity pricing response also includes the following preferred technical solutions:

[0037] As a preferred embodiment, in order to ensure that the indoor and outdoor air have a uniform and stable flow field distribution when entering and exiting the device, the upper airflow interface 4 and the upper opposing airflow interface 5 are symmetrically and horizontally arranged on both sides of the upper part of the energy storage device box 1, and the lower airflow interface 6 and the lower opposing airflow interface 7 are symmetrically and horizontally arranged on both sides of the lower part of the energy storage device box 1. The symmetrically and horizontally arranged airflow interface structure effectively avoids the generation of deflection or local eddies when the airflow enters or exits the corresponding energy storage chamber.

[0038] In a preferred embodiment, to enhance the seismic resistance and structural rigidity of the phase change energy storage tube bundle unit 12 during rotational operation, the bottom end of the tube bundle support member 15 is vertically and fixedly connected to the surface of the partition plate 9. Furthermore, the tube bundle support members 15 are arranged at equal intervals along the length of the partition plate 9. The phase change energy storage tube bundle unit 12 directly penetrates the tube bundle support member 15 and is fixedly connected to it via a snap-fit ​​mechanism. This evenly distributed array-type support structure and the snap-fit ​​limiting mechanism ensure that the overall weight of the tube bundle is evenly distributed onto the partition plate 9, thereby preventing concentrated deformation of the tube bundle when subjected to rotational forces.

[0039] In a preferred embodiment, in order to break the thermal resistance of the airflow boundary layer and further improve the convective heat transfer coefficient when air flows over the surface, the outer wall of the phase change energy storage tube bundle unit 12 is fixedly fitted with tube bundle fins 14. The tube bundle fins 14 are evenly distributed along the axial direction of the phase change energy storage tube bundle unit 12. The regularly arranged tube bundle fins 14 multiply the physical contact heat transfer area without significantly increasing the airflow resistance.

[0040] As a preferred embodiment, in order to improve the energy transfer rate when the heating wire is turned on for auxiliary heating and to prevent excessive local thermal stress, the phase change energy storage tube bundle unit 12 is filled with phase change material. The phase change material tightly wraps around the outside of the heating wire. The tight internal encapsulation structure of the heating wire and the phase change material can ensure that the heat energy is quickly and fully absorbed by the surrounding phase change material, thereby maximizing the use of low electricity price periods to convert electrical energy into latent heat storage.

[0041] Working principle: The high-temperature return air from the room enters the upper energy storage chamber 2 through the upper airflow inlets 4 on both sides of the upper part of the energy storage device box 1, or enters the lower energy storage chamber 3 through the lower airflow inlets 6 on both sides of the lower part of the energy storage device box 1. When the return air flows through the corresponding energy storage chamber where the phase change energy storage tube bundle unit 12 is fixedly installed, a temperature difference is formed between the return air temperature and the phase change temperature of the phase change material inside the phase change energy storage tube bundle unit 12. This temperature difference drives the phase change material to absorb the heat from the return air and undergo a melting phenomenon that transforms from solid to liquid. The phase change material stores heat in the form of latent heat, thereby completing the heat recovery of indoor exhaust waste heat.

[0042] During the heat storage process, the intelligent control box 11, which is fixedly installed on the outer wall of the energy storage device box 1, receives the time-of-use electricity price signal from the external power grid in real time. When it is detected that the current period is a valley or flat electricity period and the phase change material inside the phase change energy storage tube bundle unit 12 has not yet reached the full storage state, the intelligent control box 11 connects the power supply of the internal heating wire through the tube bundle electric heating terminal 13 fixedly installed at the end of the phase change energy storage tube bundle unit 12. The internal heating wire is energized and heats up to provide auxiliary heating to the phase change material wrapped on the outside to accelerate the overall heat storage process. When the phase change material reaches the fully stored state, the intelligent control box 11 automatically cuts off the power supply of the heating wire to achieve efficient utilization of low-priced electricity during the valley period and prevent overheating.

[0043] After the phase change energy storage tube bundle unit 12 inside the upper energy storage chamber 2 has completely completed heat storage, the intelligent control box 11 sends an operation control command to the rotary drive mechanism 10 fixedly installed on the outside of the energy storage device box 1. The rotary drive mechanism 10 drives the rotary main shaft 8 connected to its end to rotate. The rotary main shaft 8 drives the partition plate 9 fixedly connected to it and the upper energy storage chamber 2 and lower energy storage chamber 3 tightly separated by the partition plate 9 to rotate synchronously, so that the upper energy storage chamber 2 and lower energy storage chamber 3 complete the vertical interchange of their positions inside the energy storage device box 1. The tube bundle support member 15, which is vertically fixedly connected to the partition plate 9, provides stable support for the phase change energy storage tube bundle unit 12 and ensures the structural stability of the rotation process.

[0044] After the upper energy storage chamber 2 or lower energy storage chamber 3 is flipped and interchanged, it is connected to the upper opposite airflow interface 5 or lower opposite airflow interface 7 on the fresh air side. The outdoor low-temperature fresh air enters the corresponding chamber filled with heat through the upper opposite airflow interface 5 or lower opposite airflow interface 7. A temperature difference is formed between the low-temperature fresh air and the phase change material, which drives the phase change material to solidify and release the previously stored latent heat. The tube bundle fins 14 fixedly mounted on the outer wall of the phase change energy storage tube bundle unit 12 play a turbulence role in this process, which greatly enhances the heat exchange efficiency between the fresh air and the phase change energy storage tube bundle unit 12. The released heat fully preheats the outdoor fresh air. The preheated fresh air is sent to the room through the corresponding airflow interface. At this time, the lower energy storage chamber 3 or upper energy storage chamber 2 after the position is interchanged enters the return air side to repeat the heat recovery and heat storage action. The cyclical and coordinated action realizes continuous and efficient heat recovery and stable release.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotary phase change energy storage fresh air unit energy storage device based on time-of-use electricity price response, comprising: Energy storage device housing (1), and a rotating main shaft (8) rotatably connected to the internal center of the energy storage device housing (1); The energy storage device housing (1) is characterized in that a rotary drive mechanism (10) is fixedly installed on the outside of the housing (1), and the rotary drive mechanism (10) is connected to the end of the rotary spindle (8); a partition plate (9) is fixedly connected to the outer wall of the rotary spindle (8), and the partition plate (9) divides the internal space carried by the rotary spindle (8) into an upper energy storage chamber (2) and a lower energy storage chamber (3), and both the upper energy storage chamber (2) and the lower energy storage chamber (3) are fixedly connected to the rotary spindle (8); an upper airflow interface (4) and an upper opposing airflow interface (5) communicating with the interior of the upper energy storage chamber (2) are respectively opened on both sides of the upper part of the energy storage device housing (1), and the energy storage device housing (1) is characterized in that a rotary drive mechanism (10) is fixedly installed on the outside of the housing (1), and the rotary drive mechanism (10) is connected to the end of the rotary spindle (8); a partition plate (9) is fixedly connected to the outer wall of the rotary spindle (8), and the partition plate (9) divides the internal space carried by the rotary spindle (8) into an upper energy storage chamber (2) and a lower energy storage chamber (3), and the upper energy storage chamber (1) is fixedly connected to the rotary spindle (8); a rotary drive mechanism (10) is fixedly installed on the outer wall of the housing (1), and the partition plate (9) divides the internal space carried by the rotary spindle (8) into an upper energy storage chamber (2) and a lower energy storage chamber (3 ... The lower part has a lower airflow interface (6) and a lower opposing airflow interface (7) respectively connected to the lower energy storage chamber (3) on both sides; both the upper energy storage chamber (2) and the lower energy storage chamber (3) are fixedly installed with phase change energy storage tube bundle units (12), and the end of the phase change energy storage tube bundle unit (12) is fixedly provided with a tube bundle electric heating terminal (13). The phase change energy storage tube bundle unit (12) is provided with an electric heating wire that is electrically connected to the tube bundle electric heating terminal (13); the outer wall of the energy storage device box (1) is fixedly installed with an intelligent control box (11), and the intelligent control box (11) is electrically connected to the rotary drive mechanism (10) and the tube bundle electric heating terminal (13).

2. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 1, characterized in that, Both the upper energy storage chamber (2) and the lower energy storage chamber (3) are fixedly installed with tube bundle support members (15), and the phase change energy storage tube bundle unit (12) is fixedly connected to the tube bundle support members (15).

3. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 2, characterized in that, The bottom end of the tube bundle support member (15) is vertically fixed to the surface of the partition plate (9), and multiple tube bundle support members (15) are arranged at equal intervals along the length direction of the partition plate (9).

4. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 3, characterized in that, The phase change energy storage tube bundle unit (12) passes through the tube bundle support member (15) and is engaged and fixedly connected with the tube bundle support member (15).

5. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 1, characterized in that, The outer wall of the phase change energy storage tube bundle unit (12) is fixedly fitted with tube bundle fins (14).

6. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 5, characterized in that, Multiple tube bundle fins (14) are distributed at equal intervals along the axial direction of the phase change energy storage tube bundle unit (12).

7. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 1, characterized in that, The phase change energy storage tube bundle unit (12) is filled with phase change material, which is wrapped around the outside of the heating wire.

8. The rotary phase change energy storage fresh air unit energy storage device based on time-of-use pricing response according to claim 1, characterized in that, The upper airflow interface (4) and the upper opposing airflow interface (5) are arranged horizontally in a symmetrical manner, and the lower airflow interface (6) and the lower opposing airflow interface (7) are arranged horizontally in a symmetrical manner.

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