Heat exchange assembly with energy storage function

Abstract

The heat exchange assembly with the energy storage function comprises a shell capable of conducting heat, an energy storage medium and a heat exchanger, the energy storage medium is arranged in the shell, the heat exchanger is arranged outside the shell, and the heat exchanger is connected with an external heat exchange unit. The cold energy or the heat energy converted from the air energy can be stored by utilizing the electric energy in the valley electricity period, and the stored cold energy or heat energy is released in the peak electricity period in a radiation refrigeration mode, so that good economic benefits are achieved.

Description

Technical Field

[0001] The present application relates to a heat exchange component, and in particular to a heat exchange component with an energy storage function. Background Art

[0002] Currently, peak-valley time-of-use electricity pricing is implemented. Based on the load fluctuations of the power grid, the 24-hour day is divided into multiple periods, such as peak, flat, and valley. Different electricity prices are set for each period to encourage users to rationally arrange their electricity usage, shifting peak loads to fill valley loads, and improving the efficiency of power resources. Therefore, utilizing valley power periods to store energy and then releasing it during peak power periods has positive significance.

[0003] In the construction sector, chemical energy storage in batteries is the most common method. Buildings also typically use air to convert electrical energy into cooling or heat. However, air has a relatively small heat capacity, making energy storage difficult. Therefore, finding an efficient energy storage method is a pressing technical challenge in existing technologies. Utility Model Content

[0004] This application proposes a heat exchange component with energy storage function. Through an air source heat exchange system, the cold energy or heat energy converted from air energy is stored by utilizing the electricity during off-peak hours, and the stored cold energy or heat energy is released during peak hours through radiative cooling, thereby achieving good economic benefits.

[0005] The present application relates to a heat exchange component with an energy storage function, comprising a heat-conducting shell, an energy storage medium and a heat exchanger, wherein the energy storage medium is arranged inside the shell, the heat exchanger is arranged outside the shell, and the heat exchanger is connected to an external heat exchange unit.

[0006] wherein the heat exchanger comprises a pipeline, an inlet pipe, an outlet pipe and a metal film, the two ends of the pipeline being connected to the inlet pipe and the outlet pipe respectively, and the pipeline being arranged on the metal film; a plurality of storage bins are provided at intervals on the shell; the storage bins are provided with at least one of a groove for facilitating coiling, a through hole for fixing and a fixing hole provided on the periphery of the shell; the periphery of the shell is also provided with a raised structure and a recessed structure for splicing; at least one of an embedding groove and a card groove is provided on the contact surface between the shell and the heat exchanger, the pipeline of the heat exchanger is embedded in the embedding groove, and at least one of the inlet pipe and the outlet pipe of the heat exchanger is provided in the card groove; the metal film is provided with a small hole, the shell is provided with a through hole for fixing, and the small hole and the through hole are provided correspondingly; the shell is provided with an inlet for injecting the energy storage medium; the heat exchange component is provided in or on an isolator between the internal environment and the external environment, the isolator being the wall of a building or the cabinet of a refrigeration equipment; the outside of the heat exchange component is provided with an insulation layer.

[0007] The present application provides a heat exchange assembly with energy storage function, which can be buried in the isolation wall or partition wall of an enclosed space. It can not only realize the energy supply required in the enclosed space, but also realize energy storage. Based on the above energy storage, it is possible to store energy during off-peak hours and release energy during peak hours, reduce or stop power supply during peak hours, and use energy storage during off-peak hours to ensure energy demand during peak hours, thereby achieving good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram showing a heat exchange component with energy storage function of the present application.

[0009] Figure 2 A diagram showing the usage status of a heat exchange component with energy storage function of the present application.

[0010] Figure 3 A shell side view showing the heat exchange assembly of the present application.

[0011] Figure 4 Showing a shell plan view of the heat exchange assembly of the present application.

[0012] Figure 5 A diagram showing the storage state of the heat exchange component of this application.

[0013] Figure 6 A diagram showing the combined use status of multiple heat exchange components of the present application.

[0014] Figure 7 A schematic diagram showing the structure of the heat exchanger in the heat exchange assembly of the present application.

[0015] Figure 8 A diagram showing an arrangement of heat exchangers in the heat exchange assembly of the present application.

[0016] Figure 9 Another arrangement diagram of the heat exchanger in the heat exchange assembly of the present application is shown. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of this application more clearly understood, the following detailed description of the embodiments of this application is provided in conjunction with the accompanying drawings. It should be noted that the embodiments and features of the embodiments in this application may be combined arbitrarily, unless they conflict. While this application uses a building environment as an example, the technology of this application is also applicable to other refrigeration appliances, such as refrigerators, freezers, or large commercial cold storage facilities.

[0018] This application proposes a heat exchange component with energy storage function, which uses the electric energy during off-peak hours to store the cold energy or heat energy converted from air energy through an air source heat exchange system, and releases the stored cold energy or heat energy during peak hours through radiative cooling. According to the present application, a heat exchange component with energy storage function includes a shell 1 that can conduct heat, an energy storage medium 2 and a heat exchanger 3. The energy storage medium 2 is arranged in the shell 1, and the heat exchanger 3 is attached to the outside of the shell 1. Figure 1 As shown. The energy storage medium 2 of this application can be a highly thermally conductive phase-change fluid material. When the energy storage medium 2 is in a liquid state, the energy storage medium 2 is filled into the housing 1 through the inlet on the housing 1, and the inlet is sealed, thereby sealing the energy storage medium within the housing. The latent heat released by the energy storage medium 2 is much greater than the sensible heat, so phase-change materials are preferred as energy storage media.

[0019] The heat exchange assembly of the present application can be installed in the wall 41 of the building 4, or buried in the ceiling of the building 4, or a combination of different embedding methods. Figure 2 As shown, a heat exchanger unit 5 outside the building 4 is connected to the heat exchanger 3 via a pipeline, and the refrigerant in the heat exchanger unit 5 circulates with the heat exchanger 3. To prevent energy from being transferred outside the building, an insulation layer 6 can be added to the outside of the heat exchange component when it is installed in the wall 41.

[0020] When cooling is required inside building 4, heat exchanger 5 draws cold energy from outside building 4 and transfers it to heat exchanger 3 embedded in wall 41. Heat exchanger 3 exchanges heat with the air inside building 4 via natural convection through the concrete finish of wall 41, lowering the air temperature inside building 4 and achieving cooling. Heat exchanger 3 also transfers cold energy to energy storage medium 2 within housing 1, which stores cold energy in the form of sensible heat or latent heat from phase change. When energy storage medium 2 within housing 1 accumulates sufficient cold energy, this stored cold energy can be utilized during off-peak hours. That is, during peak hours, heat exchanger 5 enters a shutdown state, consuming no electricity. Instead, it exchanges the sensible or latent heat of energy storage medium 2 in housing 1 with the air inside the building via natural convection through the concrete finish. During off-peak hours, the heat exchanger unit 5 enters operation, consuming electrical energy to convert air energy into cold energy, which is then transferred to the heat exchanger 3. The heat exchanger 3 cools the building 4 on the one hand, and transfers the cold energy to the energy storage medium 2 on the other hand.

[0021] When heating is needed inside building 4, heat exchanger unit 5 draws heat from outside building 4 and transfers it to heat exchanger 3 embedded in wall 41. Heat exchanger 3 exchanges heat with the air inside building 4 via natural convection through the concrete finish of wall 41, raising the air temperature inside building 4 and achieving heating. Heat exchanger 3 also transfers heat to energy storage medium 2 within housing 1, which stores heat in the form of sensible heat or latent heat from phase change. When energy storage medium 2 within housing 1 accumulates sufficient heat, this stored heat can be utilized during off-peak hours. That is, during peak hours, heat exchanger unit 5 enters a shutdown state, consuming no electricity. Instead, it transfers the sensible or latent heat of energy storage medium 2 in housing 1 through the concrete finish to the air inside building 4 via natural convection. During off-peak hours, the heat exchanger unit 5 enters operation, consuming electrical energy to convert air energy into heat, which is then transferred to the heat exchanger 3. The heat exchanger 3 provides heating to the building 4 on the one hand, and transfers the heat to the energy storage medium 2 on the other hand to store the heat.

[0022] like Figure 3-4 As shown, the shell 1 may be provided with a plurality of storage bins for storing energy storage media at intervals. The shell 1 has a groove 12, through which the shell can be rolled into a shape as shown in FIG. Figure 5 The polygon shown in the figure is convenient for packaging, storage and transportation. The shell 1 can also be provided with through holes 13, which are spaced between the storage bins and are used to pass fasteners to fix the shell in a designated position. The shell 1 is also provided with fixing holes 16 around the periphery for positioning and fixing. The shell 1 is also provided with a raised structure 17 and a recessed structure 18 around the periphery. When the two shells are spliced ​​together, the raised structure 17 can be embedded in the recessed structure 18, thereby forming an overall structure with a larger area, as shown in FIG. Figure 6 shown.

[0023] The contact surface between the housing 1 and the heat exchanger 3 can be coated or electroplated with a metal film to enhance the heat exchange between the heat exchanger 3 and the energy storage medium 2. This contact surface is also provided with an embedding groove 14, which allows the piping of the heat exchanger 3 to be embedded in the shell wall 11 of the housing 1, forming a fixed structure and increasing the heat exchange area. This contact surface can also be provided with a clamping groove 15 to secure the heat exchanger header.

[0024] The heat exchanger 3 of the present application is preferably a heat exchanger type that is easy to apply. Figure 7 As shown in FIG. 7 , in one embodiment, the heat exchanger 3 may include a pipeline 31, an inlet pipe 32, an outlet pipe 33, and a metal film. The two ends of the pipeline 31 are connected to the inlet pipe 32 and the outlet pipe 33, respectively. The pipeline 31 is disposed on the metal film. The metal film may be laid on one side or, as shown in FIG. 7 , on both sides, including a first metal film 34 and a second metal film 35.

[0025] The pipeline 31 can be one or more pipes, and its two ends are sealedly connected to the inlet pipe 32 and the outlet pipe 33 respectively. Figure 8 The curved shape shown can also be Figure 9 The straight line shape shown. Taking into account the convenience of packaging, storage, transportation and installation of the technical products of this application, pipes with an outer diameter of less than 10 mm can be used as materials for pipeline 31, and preferably pipes with an outer diameter of less than 4 mm can be used. The metal film has good thermal conductivity, can form a uniform temperature field and increase the heat exchange area, so as to convert the linear heat transfer effect of the pipeline 31 into a surface heat transfer effect. There may be small holes 36 on the metal film, and this small hole 36 corresponds to the through hole 13 on the shell 1 to avoid the iron nails used for fixing from piercing or interrupting the pipeline 31 during installation. This application takes into account the convenience of the product in packaging, storage, transportation and installation, and considers the flexibility requirements in structural design and material selection, so that the product can be coiled to reduce the external size.

[0026] Although the embodiments disclosed in this application are as described above, the contents described are merely embodiments adopted to facilitate understanding of this application and are not intended to limit this application. Any person skilled in the art of the art to which this application belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application. However, the scope of patent protection of this application shall still be based on the scope defined by the attached claims.

Claims

1. A heat exchange component with energy storage function, characterized in that: The heat exchanger comprises a heat-conducting shell, an energy storage medium and a heat exchanger. The energy storage medium is arranged in the shell, the heat exchanger is arranged outside the shell, and the heat exchanger is connected to an external heat exchange unit.

2. The heat exchange assembly according to claim 1, characterized in that: The heat exchanger includes a pipeline, an inlet pipe, an outlet pipe and a metal film. Both ends of the pipeline are respectively connected to the inlet pipe and the outlet pipe. The pipeline is arranged on the metal film.

3. The heat exchange assembly according to claim 1 or 2, characterized in that: A plurality of storage bins are arranged at intervals on the shell.

4. The heat exchange assembly according to claim 3, characterized in that: The storage bin is provided with at least one of a groove for facilitating coiling, a through hole for fixing, and a fixing hole provided on the periphery of the shell.

5. The heat exchange assembly according to claim 1, 2 or 4, characterized in that: The periphery of the shell is also provided with a convex structure and a concave structure for splicing.

6. The heat exchange assembly according to claim 2, characterized in that: At least one of an embedding groove and a clamping groove is provided on the contact surface between the shell and the heat exchanger, the pipeline of the heat exchanger is embedded in the embedding groove, and at least one of the inlet pipe and the outlet pipe of the heat exchanger is provided in the clamping groove.

7. The heat exchange assembly according to claim 2 or 6, characterized in that: The metal film is provided with a small hole, and the shell is provided with a through hole for fixing, and the small hole and the through hole are correspondingly arranged.

8. The heat exchange assembly according to claim 1, 2, 4 or 6, characterized in that: The shell is provided with a filling port for filling the energy storage medium.

9. The heat exchange assembly according to claim 1, 2, 4 or 6, characterized in that: The heat exchange component is arranged in or on an isolating body separating the internal environment and the external environment. The isolating body is a wall of a building or a cabinet of a refrigeration device.

10. The heat exchange assembly according to claim 1, 2, 4 or 6, characterized in that: A heat insulation layer is provided on the outside of the heat exchange component.

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