Assembled phase change material packaging container capable of enhancing heat exchange and heat exchange box

Abstract

The utility model discloses an assembly type phase change material packaging container capable of enhancing heat exchange and a heat exchange box, the packaging container comprises an upper convex surface unit, a lower concave surface unit is arranged below the upper convex surface unit, and the upper convex surface unit and the lower concave surface unit are connected through a cover body; the upper convex surface unit comprises an upper convex surface, and the two side edges of the upper convex surface are connected with an upper slope surface; the lower concave surface unit comprises a lower convex surface, and the two side edges of the lower convex surface are connected with a lower slope surface; an included angle between the two upper slope surfaces is a top surface angle, and an included angle between the two lower slope surfaces is a bottom surface angle; the top face angle and the bottom face angle are in the same direction, and the angle of the top face angle is larger than that of the bottom face angle. According to the utility model, a flat plate type packaging container is changed into a tile type packaging container, so that a plurality of energy storage plates are changed into line contact from surface contact during assembly while the heat exchange area is increased, and the contact area is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage tools, in particular to an assembled phase change material packaging container and a heat exchange box capable of enhancing heat exchange. Background Art

[0002] In recent years, with the increasing maturity of renewable energy technologies, energy storage has become one of the most promising technologies of our time. It not only promotes carbon reduction in the heating and cooling sectors, but also achieves economic benefits by improving energy efficiency. Energy storage technologies primarily include sensible heat storage, latent heat storage, and photochemical heat storage. In latent heat storage, the encapsulation of phase change materials is crucial for maximizing their energy storage capacity. A suitable encapsulation structure can not only maximize the advantages of phase change materials but also compensate for their shortcomings.

[0003] Most phase change materials have poor heat transfer performance. Increasing the heat exchange area between the phase change material and the heat transfer fluid is one of the main methods to enhance the heat transfer of phase change energy storage materials. At present, the geometric shapes of the modular units of phase change materials can be spherical, cylindrical, plate-shaped, etc., which can be flexibly adjusted according to actual needs. The shape, shell material, thickness, capacity, etc. of the packaging unit will affect the energy storage density and efficiency. Due to corrosive considerations, the commonly used packaging materials are usually plastics, which are mostly thin flat plates and are assembled through the concave and convex between the upper and lower planes. However, their slow heat transfer and limited load-bearing capacity limit the industrial promotion of this technology.

[0004] The utility model takes corrosion resistance, heat transfer performance, load-bearing support performance and easy disassembly into consideration, and proposes an assembled phase change material packaging container that can enhance heat exchange, thereby promoting the industrial development of phase change energy storage technology.

[0005] Publication No. CN221354849U discloses a heat-conducting structure, a phase-change thermal storage device, and a satellite. The heat-conducting structure includes a housing with a cavity; a heat-conducting frame disposed in the cavity, and a first side surface including alternating first upper and lower convex portions; and a second side surface disposed opposite the first side surface, including alternating second upper and second lower convex portions, the second upper convex portions being disposed opposite the first lower convex portions, and the second lower convex portions being disposed opposite the first upper convex portions. The heat-conducting structure can improve the heat storage efficiency of the phase-change thermal storage device and reduce heat storage time.

[0006] However, the prior art is in the form of a flat plate, and the stacking arrangement requires auxiliary pads, which makes the stacking arrangement process cumbersome and inefficient.

[0007] Announcement No. CN220541825U discloses an integrated, combinable phase-change energy storage module, comprising a phase-change energy storage module, the phase-change energy storage module comprising an insulating shell, a plurality of phase-change energy storage material units disposed within the shell, and a plurality of polyethylene heat exchangers disposed between the phase-change energy storage material units. By placing the phase-change material within a corrosion-resistant composite packaging bag, the anti-corrosion composite packaging bag prevents leakage of the phase-change material and acts as a heat conductor. The insulating shell improves thermal insulation, thereby reducing temperature loss and improving heat exchange efficiency.

[0008] This existing technology achieves efficient heat exchange by staggering phase change energy storage material units and heat exchange tubes, but the layout process is cumbersome and the efficiency is low.

[0009] Publication number: CN115031564A, discloses a multi-stage phase-change water storage tank and system with a stepped outer groove, including a solar thermal collection system, a multi-stage phase-change water storage tank, a heating system and an auxiliary heating device. The solar thermal collection system is used to provide heat sources of different temperatures. One end of the water storage tank is connected to the solar thermal collection system, the other end of the water storage tank is connected to the heating terminal, and the auxiliary heating device is connected to the heating terminal. The water storage tank includes a tank body, an insulation layer and a stepped heat storage unit assembly with an outer groove placed in the tank body; due to the high water temperature at the inlet, a stepped multi-stage heat storage unit is proposed to increase the heat exchange area at the inlet and the overall heat exchange efficiency. The grooves added to the material heat storage unit can enhance disturbance and enhance heat exchange efficiency.

[0010] The prior art enhances heat exchange efficiency by providing grooves on the outer wall of the material heat storage unit, and the technical solution is different from that of the present invention.

[0011] In short, the technical solutions of the above-disclosed technologies, the technical problems to be solved and the beneficial effects produced are all different from those of the present utility model. Regarding the more technical features, technical problems to be solved and the beneficial effects of the present utility model, the above-disclosed technical documents do not provide any technical inspiration. Utility Model Content

[0012] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide an assembled phase change material packaging container and a heat exchange box that can enhance heat exchange.

[0013] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0014] On the one hand, the present invention provides an assembled phase change material packaging container that can enhance heat exchange, including an upper convex unit, a lower concave unit is arranged below the upper convex unit, and the upper convex unit and the lower concave unit are connected by a cover body; the upper convex unit includes an upper convex surface, and the two side edges of the upper convex surface are connected to the upper slope surface; the lower concave unit includes a lower convex surface, and the two side edges of the lower convex surface are connected to the lower slope surface; the angle between the two upper slope surfaces is the top surface angle, and the angle between the two lower slope surfaces is the bottom surface angle; the top surface angle and the bottom surface angle are in the same direction, and the top surface angle is greater than the bottom surface angle.

[0015] Furthermore, the upper convex surface and the lower convex surface are both horizontal surfaces, the upper convex surface and the lower convex surface have the same width, and the top surface angle and the bottom surface angle are both facing downward.

[0016] Furthermore, the outer contours of the upper convex unit and the lower concave unit are the same, and the cover is arranged on the outer contours of the convex unit and the lower concave unit.

[0017] Furthermore, the cover body is provided with a conical filling port;

[0018] Specifically, the large opening of the conical filling port is connected to the cover body, and the small opening of the conical filling port is provided with a sealing cover.

[0019] Furthermore, at least two upper convex surfaces are provided, the left side of each upper convex surface is connected to the left upper slope surface, the right side of each upper convex surface is connected to the right upper slope surface, and an upper convex surface is provided between adjacent left upper slope surfaces and right upper slope surfaces;

[0020] Specifically, at least two lower convex surfaces are provided, the left side of each lower convex surface is connected to the left lower slope surface, the right side of each lower convex surface is connected to the right lower slope surface, and a lower concave surface is provided between adjacent left lower slope surfaces and right lower slope surfaces.

[0021] Furthermore, the width of the upper concave surface is smaller than that of the lower concave surface.

[0022] Furthermore, the left upper slope surface on the far left and the right upper slope surface on the far right are connected to the semi-upper concave surface; the left lower slope surface on the far left and the right lower slope surface on the far right are connected to the semi-lower concave surface.

[0023] Furthermore, outer surfaces of the upper convex surface, the upper concave surface, the left upper slope surface, and the right upper slope surface of the packaging container are all provided with corrugations.

[0024] Furthermore, the wave direction of the corrugation is the corrugation direction;

[0025] The corrugation direction of the upper convex surface and the upper concave surface is consistent with the long direction of the plate;

[0026] The corrugation direction of the upper slope surface is perpendicular to the water flow direction.

[0027] In a second aspect, the present invention provides an oilfield heat exchange box, in which the assembled phase change material packaging containers capable of enhancing heat exchange as described in the first aspect are stacked.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The utility model changes the flat-plate packaging container into a tile-type one, thereby increasing the heat exchange area and improving the surface contact of multiple energy storage plates to line contact during assembly, thereby minimizing the contact area.

[0030] 2. The utility model increases the turbulence of the fluid during heat exchange by providing corrugations on the surface of the packaging container, thereby further enhancing the heat exchange effect and improving the heat exchange efficiency.

[0031] 3. This utility model is suitable for heating equipment in oil well stations, transfer stations, joint stations, and office and accommodation areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the packaging container in the utility model;

[0033] Figure 2 It is a schematic diagram of the structure of the corrugation in the utility model;

[0034] Figure 3 This is a schematic diagram of the assembly and stacking of packaging containers in the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the packaging container in the utility model.

[0036] In the figure: 1, cover body; 2, upper convex surface; 3.1, upper concave surface; 3.2, semi-upper concave surface; 4, upper slope surface; 4.1, upper left slope surface; 4.2, upper right slope surface; 5, lower convex surface; 6.1, lower concave surface; 6.2, semi-lower concave surface; 7, lower slope surface; 7.1, lower left slope surface; 7.2, lower right slope surface; 8, tapered filling port. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example 1:

[0039] See also Figures 1 to 4The utility model provides an assembled phase change material packaging container capable of enhancing heat exchange, comprising an upper convex unit and a lower concave unit; the upper convex unit is arranged above the lower concave unit, and the upper convex unit and the lower concave unit are connected by a cover body 1, the upper convex unit comprises a horizontal upper convex surface 2, and the two sides of the upper convex surface 2 are connected to the upper slope surface 4, the lower concave unit comprises a horizontal lower convex surface 5, and the two sides of the lower convex surface 5 are connected to the lower slope surface 7, the angle between the two upper slope surfaces 4 is the top angle, and the angle between the two lower slope surfaces 7 is the bottom angle, the top angle and the bottom angle are both facing downward, and the top angle is greater than the bottom angle.

[0040] Specifically, the upper convex surface 2 and the lower convex surface 5 have the same width.

[0041] Specifically, the outer contours of the upper convex unit and the lower concave unit are the same, and the cover 1 is arranged on the outer contours of the convex unit and the lower concave unit.

[0042] Preferably, the cover body 1, the upper convex surface unit and the lower concave surface unit are made of HDPE with a high thermal conductivity.

[0043] Another preferred embodiment is that the cover body 1, the upper convex unit and the lower concave unit are made of metal materials with high thermal conductivity such as copper or aluminum. The inner and outer surfaces of the cover body 1, the upper convex unit and the lower concave unit are specially treated to form microscopic fin structures or grooves to increase the contact area with the phase change material and enhance the heat exchange effect.

[0044] The lower concave unit and the upper convex unit between the two packaging containers can be stacked. Since the top surface angle is greater than the bottom surface angle, during the stacking assembly, the lower concave unit and the upper convex unit are only in line contact, so that there is a flow channel between the two packaging containers, allowing the packaging containers to fully exchange heat in the heat exchanger.

[0045] Furthermore, the cover body 1 is provided with a conical filling port 8, the large mouth of the conical filling port 8 is connected to the cover body 1, and the small mouth of the conical filling port 8 is provided with a sealing cover. The conical filling port 8 facilitates the discharge of bubbles in the packaging container by shaking during filling, fully filling it, and facilitating the pouring of the filling liquid during the later recycling process.

[0046] Furthermore, a heat exchange tube is provided from the outside of the cover 1 to the inside of the packaging container, and the inside of the heat exchange tube is connected to the outside of the cover 1. The heat exchange tube is made of metal material with good thermal conductivity, such as copper tube, to further improve the heat exchange efficiency.

[0047] Example 2:

[0048] Based on Example 1, at least two upper convex surfaces 2 are provided in this embodiment, the left side of each upper convex surface 2 is connected to the left upper slope surface 4.1, the right side of each upper convex surface 2 is connected to the right upper slope surface 4.2, and an upper convex surface 3.1 is provided between adjacent left upper slope surfaces 4.1 and right upper slope surfaces 4.2.

[0049] At least two lower convex surfaces 5 are provided, the left side of each lower convex surface 5 is connected to the left lower slope surface 7.1, the right side of each lower convex surface 5 is connected to the right lower slope surface 7.2, and a lower concave surface 6.1 is provided between adjacent left lower slope surfaces 7.1 and right lower slope surfaces 7.2.

[0050] Specifically, the width of the upper concave surface 3.1 is smaller than that of the lower concave surface 6.1.

[0051] In this embodiment, at least two upper convex surfaces 2 and the lower convex surface 5 form an arch-like structure, so that the packaging container has a stronger load-bearing capacity.

[0052] Furthermore, the left upper slope surface 4.1 on the far left and the right upper slope surface 4.2 on the far right are connected to the semi-upper concave surface 3.2; the left lower slope surface 7.1 on the far left and the right lower slope surface 7.2 on the far right are connected to the semi-lower concave surface 6.2; the semi-upper concave surface 3.2 and the semi-lower concave surface 6.2 can provide hand-holding or clamping space when stacked, which is convenient for installation.

[0053] Preferably, the outer surfaces of the upper convex surface 2, the upper concave surface 3 and the upper slope surface 4 of the packaging container are all provided as shown below. Figure 2 In the corrugations shown, the lower convex surface 5, the lower concave surface 6, and the lower slope surface 7 are all ordinary surfaces.

[0054] Specifically, the wave direction of the corrugation is the wave direction, and the wave direction of the upper convex surface 2 and the upper concave surface 3 is consistent with the long direction of the plate, which can enhance the turbulent effect of the water flow; the wave direction of the upper slope surface 4 is perpendicular to the water flow direction, which can enhance the friction between the upper and lower plates during the assembly process, making it more stable.

[0055] Example 3:

[0056] This embodiment provides an application of an assembled phase change material packaging container capable of enhancing heat exchange in an oilfield heat exchange box.

[0057] The heat exchange box has double walls, which are made of durable materials with certain protective properties, such as stainless steel. The middle of the double wall is filled with high-efficiency heat-insulating materials, such as aerogel, to effectively reduce heat loss.

[0058] Application steps:

[0059] First, if Figure 4As shown, open the conical filling port 8 and pour the phase change material through it. During the filling process, strictly control the filling speed and volume to ensure that the phase change material is evenly filled and no bubbles are generated. After filling is complete, shake the container left and right to allow bubbles to escape through the conical filling port 8. Then, continue filling at a slow speed and close the sealing cap to seal. Use a high-performance sealing material, such as a rubber sealing ring, between the sealing cap and the conical filling port 8 to ensure a good seal and prevent leakage of the phase change material.

[0060] After filling multiple packaging containers, Figure 3 The longitudinal stack shown is placed in a heat exchange box, which is filled with liquid. Under the action of thermodynamic force, the liquid moves along the gap between the shells to exchange heat. The liquid enters the heat exchange tubes of the shells to accelerate heat exchange. The packaging containers are evenly distributed inside the heat exchange box to achieve the best heat exchange effect.

[0061] After stacking the shells vertically, they can be joined side-to-side. The joints are designed with specialized connection structures, such as slots and latches. During the joining process, it's crucial to ensure a tight connection between the shells to ensure even heat transfer between the assembled packaging containers.

[0062] In practical applications, phase change materials with different phase change temperatures and phase change latent heats can be selected according to different working environments and heat exchange requirements. For example, for environments with large temperature changes, phase change materials with a wider phase change temperature range can be selected. For situations that require rapid energy storage and release, phase change materials with a larger phase change latent heat can be selected.

[0063] To ensure the reliability of the packaging container of this utility model, rigorous experimental testing is required after manufacturing. This includes thermal performance testing to measure key parameters such as heat transfer coefficient, phase change time, and energy storage efficiency; sealing performance testing to detect leakage under different pressure and temperature conditions; and mechanical performance testing to evaluate the packaging container's strength, rigidity, and seismic resistance.

[0064] In summary, the utility model is an assembled phase change material packaging container with enhanced heat exchange. Through reasonable structural design, flexible splicing methods, efficient heat exchange measures and strict quality control, it can effectively realize the packaging and heat exchange of phase change materials, providing a high-performance solution for related fields.

[0065] All components not discussed in detail in this application and the connection methods of the components in this application are well-known technologies in the technical field and can be directly applied without further explanation.

[0066] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0067] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0068] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An assembled phase change material packaging container capable of enhancing heat exchange, characterized in that: It includes an upper convex surface unit, a lower concave surface unit is arranged below the upper convex surface unit, and the upper convex surface unit and the lower concave surface unit are connected by a cover body; The upper convex surface unit includes an upper convex surface, and both sides of the upper convex surface are connected to the upper slope surface; The concave surface unit includes a convex surface, and both sides of the convex surface are connected to the downslope surface; The angle between the two upslope surfaces is the top angle, and the angle between the two downslope surfaces is the bottom angle. The top angle and the bottom angle are in the same direction, and the top angle is greater than the bottom angle.

2. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 1, characterized in that: The upper convex surface and the lower convex surface are both horizontal surfaces, the upper convex surface and the lower convex surface have the same width, and the top surface angle and the bottom surface angle are both facing downward.

3. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 1, characterized in that: The outer contours of the upper convex unit and the lower concave unit are the same, and the cover is arranged on the outer contours of the convex unit and the lower concave unit.

4. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 1, characterized in that: The cover body is provided with a conical filling port; The large opening of the conical filling port is connected to the cover body, and the small opening of the conical filling port is provided with a sealing cover.

5. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 1, characterized in that: At least two upper convex surfaces are provided, the left side of each upper convex surface is connected to the left upper slope surface, the right side of each upper convex surface is connected to the right upper slope surface, and an upper convex surface is provided between adjacent left upper slope surfaces and right upper slope surfaces; At least two lower convex surfaces are provided, the left side of each lower convex surface is connected to the left lower slope surface, the right side of each lower convex surface is connected to the right lower slope surface, and a lower concave surface is provided between adjacent left lower slope surfaces and right lower slope surfaces.

6. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 5, characterized in that: The left upper slope surface on the far left and the right upper slope surface on the far right are connected to the semi-upper concave surface; the left lower slope surface on the far left and the right lower slope surface on the far right are connected to the semi-lower concave surface.

7. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 6, characterized in that: The width of the upper concave surface is smaller than that of the lower concave surface.

8. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 6, characterized in that: The outer surfaces of the upper convex surface, the upper concave surface, the left upper slope surface and the right upper slope surface of the packaging container are all provided with corrugations.

9. The assembled phase change material packaging container capable of enhancing heat exchange according to claim 8, characterized in that: The wave direction of the corrugation is the corrugation direction; The corrugation direction of the upper convex surface and the upper concave surface is consistent with the long direction of the plate; The corrugation direction of the upper slope surface is perpendicular to the water flow direction.

10. A heat exchange box, characterized in that: The heat exchange box is stacked with an assembled phase change material packaging container capable of enhancing heat exchange according to any one of claims 1 to 9.

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