Energy storage and heat exchange device based on phase change material

Abstract

The utility model relates to the technical field of energy recovery and reutilization, in particular to an energy storage and heat exchange device based on a phase change material. Comprising a bottom plate and an auxiliary assembly, the auxiliary assembly comprises a supporting plate, a first fixing pipe, a second fixing pipe, a connecting pipe, a first sleeve, a second sleeve and connecting components, after the first sleeve and the second sleeve are combined and installed, a packaging cavity is formed, a composite organic phase-change material is packaged in the packaging cavity, and the connecting components are arranged on one side of the first fixing pipe and one side of the second fixing pipe correspondingly. The composite organic phase-change material is adopted as a heat exchange medium and packaged on the outer side of the connecting pipe, the heat exchanger structure is simplified, meanwhile, a large amount of heat energy can be stored under the condition that the temperature change is small, compatible use of energy storage equipment and heat exchange equipment can be achieved, and therefore the heat exchange efficiency is improved when the heat exchanger is used. The heat exchange efficiency and the practical performance of the heat exchanger can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy recovery and reuse, and in particular to an energy storage and heat exchange device based on phase change materials. Background Art

[0002] Phase change heat exchanger is an industrial waste heat exchange device that can achieve energy saving. The phase change material in the phase change heat exchanger has the ability to change its physical state within a certain temperature range, such as solid-liquid phase change. When heated to the melting temperature, a phase change from solid to liquid occurs. During the melting process, the phase change material absorbs and stores a large amount of latent heat. When the phase change material is cooled, the stored heat is dissipated into the environment within a certain temperature range, and a reverse phase change from liquid to solid is performed. In these two phase change processes, energy storage and release are achieved through phase change latent heat.

[0003] Under the existing technology, most of the time, a single organic phase change material is directly used as the phase change material of the phase change heat exchanger. However, the temperature platform of the single organic phase change material is narrow, the latent heat of the phase change is greatly limited, and the heat exchange efficiency is low. At the same time, the phase change temperature of the single organic phase change material also greatly limits the application scope of the heat exchanger, and the practicality is poor. Summary of the invention

[0004] The purpose of the utility model is to provide an energy storage heat exchange device based on phase change material, which is intended to effectively improve the heat exchange efficiency and enhance the practical performance of the heat exchanger when used.

[0005] To achieve the above-mentioned purpose, the utility model provides an energy storage and heat exchange device based on phase change material, including a bottom plate and an auxiliary component;

[0006] The auxiliary component includes a support plate, a first fixed tube, a second fixed tube, a connecting tube, a first sleeve, a second sleeve and a connecting member. The support plate is fixedly connected to the bottom plate and is located on both sides of the bottom plate. The first fixed tube is fixedly connected to the support plate and is located on the support plate. The second fixed tube is fixedly connected to the support plate and is located on a side of the support plate away from the first fixed tube. The connecting tube is detachably connected to the first fixed tube and the second fixed tube respectively and is located between the first fixed tube and the second fixed tube. The first sleeve is detachably connected to the connecting tube and is located above the connecting tube. The second sleeve is detachably connected to the connecting tube and is fixedly connected to the first sleeve and is located below the connecting tube. The connecting members are respectively arranged on one side of the first fixed tube and the second fixed tube.

[0007] The first sleeve has a first flange, which is fixedly connected to the first sleeve and located on the first sleeve.

[0008] The second sleeve is provided with a second flange, and the second flange is fixedly connected to the second sleeve and is located on the second sleeve.

[0009] Wherein, the connecting member includes a first connecting flange and a second connecting flange, the first connecting flange is rotatably connected to the first fixed pipe and is located on a side of the first fixed pipe away from the connecting pipe; the second connecting flange is rotatably connected to the second fixed pipe and is located on a side of the second fixed pipe away from the connecting pipe.

[0010] Wherein, the auxiliary component also includes a T-shaped threaded barrel and a T-shaped screw, the T-shaped threaded barrel is fixedly connected to the base plate and located at the bottom of the base plate; the T-shaped screw is threadedly connected to the T-shaped threaded barrel and located at the bottom of the T-shaped threaded barrel.

[0011] The utility model discloses a phase change material based energy storage and heat exchange device, wherein a support plate is installed on both sides of a bottom plate, a first fixed tube and a second fixed tube are respectively installed on the support plate, a connecting tube is respectively connected to the first fixed tube and the second fixed tube to form a fluid flow channel, and a first sleeve and a second sleeve are assembled and installed to form a packaging cavity, in which a composite organic phase change material is packaged, and connecting components are respectively arranged on one side of the first fixed tube and the second fixed tube for fluid input and output. The utility model adopts a composite organic phase change material as a heat exchange medium and is packaged on the outside of the connecting tube, thereby simplifying the heat exchanger structure, and can store a large amount of heat energy even when the temperature change is very small, and can also realize the compatible use of energy storage equipment and heat exchange equipment, thereby effectively improving the heat exchange efficiency and improving the practical performance of the heat exchanger when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the energy storage and heat exchange device based on phase change material according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the connecting pipe of the first embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the overall structure of the energy storage and heat exchange device based on phase change material according to the second embodiment of the utility model.

[0016] In the figure: 101-bottom plate, 102-support plate, 103-first fixed tube, 104-second fixed tube, 105-connecting tube, 106-first sleeve, 107-second sleeve, 108-first flange, 109-second flange, 110-first connecting flange, 111-second connecting flange, 201-T-shaped threaded tube, 202-T-shaped screw. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention. Embodiment 1

[0018] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the overall structure of the energy storage and heat exchange device based on phase change materials. Figure 2 It is a structural schematic diagram of the connecting pipe 105. The utility model provides a phase change material based energy storage heat exchange device: including a bottom plate 101 and an auxiliary component, the auxiliary component includes a support plate 102, a first fixed pipe 103, a second fixed pipe 104, a connecting pipe 105, a first sleeve 106, a second sleeve 107 and a connecting member, the connecting member includes a first connecting flange 110 and a second connecting flange 111. Through the above scheme, it can be achieved that when in use, the heat exchange efficiency and the practical performance of the heat exchanger can be effectively improved. It can be understood that the above scheme can effectively improve the heat exchange efficiency and the practical performance of the heat exchanger.

[0019] In this embodiment, a mounting hole is provided on the bottom plate 101 to facilitate installation and fixation.

[0020] Among them, the support plate 102 is fixedly connected to the bottom plate 101 and is located on both sides of the bottom plate 101, the first fixed tube 103 is fixedly connected to the support plate 102 and is located on the support plate 102, the second fixed tube 104 is fixedly connected to the support plate 102 and is located on the side of the support plate 102 away from the first fixed tube 103, the connecting tube 105 is detachably connected to the first fixed tube 103 and the second fixed tube 104 respectively, and is located between the first fixed tube 103 and the second fixed tube 104, the first sleeve 106 is detachably connected to the connecting tube 105 and is located above the connecting tube 105, the second sleeve 107 is detachably connected to the connecting tube 105, and is fixedly connected to the first sleeve 106 and is located below the connecting tube 105, and the connecting components are respectively arranged on one side of the first fixed tube 103 and the second fixed tube 104. The support plate 102 is mounted on the bottom plate 101 by bolts, and is installed symmetrically. The mounting plate of the first fixed tube 103 is fixed to the support plate 102 on the left side by bolts, and the second fixed tube 104 is fixed to the support plate 102 on the right side by bolts. The connecting plate of the connecting tube 105 is connected to the first fixed tube 103 by bolts on one side, and connected to the second fixed tube 104 by bolts on the other side, thereby forming a fluid flow channel. The bolts are all countersunk to facilitate the installation of the first sleeve 106 and the second sleeve 107. The first sleeve 106 and the second sleeve 107 are semi-cavity tube shells, which are assembled and installed by screws and nuts and are sleeved on the connecting tube. On the outside of the connecting pipe 105, the connecting contact surface is sealed by a sealing gasket. At the same time, the contact surfaces of the first sleeve 106 and the second sleeve 107 with the end portions of the connecting pipe 105 on both sides are sealed by O-rings. The first sleeve 106, the second sleeve 107 and the connecting pipe 105 form a cavity in which a composite organic phase change material is encapsulated, such as a phase change material mixture of 62# sliced ​​paraffin and stearic acid in a ratio of 3:7. The first sleeve 106 and the second sleeve 107 can directly replace the shells of different cavity volumes for different assembly uses. The connecting components are respectively arranged on one side of the first fixed pipe 103 and the second fixed pipe 104 for fluid input and output.

[0021] Secondly, the first sleeve 106 has a first flange 108, which is fixedly connected to the first sleeve 106 and is located on the first sleeve 106. The first flange 108 is welded to the top right side of the first sleeve 106, and is used for introducing the composite organic phase change material during packaging, and can be sealed on the outside by installing a cover plate.

[0022] Then, the second sleeve 107 has a second flange 109, which is fixedly connected to the second sleeve 107 and is located on the second sleeve 107. The second flange 109 is welded to the lower left side of the second sleeve 107, and is used for exporting the composite organic phase change material during packaging, and can be sealed at the outside by installing a cover plate.

[0023] Finally, the first connection flange 110 is rotatably connected to the first fixed pipe 103 and is located at the side of the first fixed pipe 103 away from the connection pipe 105; the second connection flange 111 is rotatably connected to the second fixed pipe 104 and is located at the side of the second fixed pipe 104 away from the connection pipe 105. The first connection flange 110 is rotatably installed in the threaded cavity on the inlet side of the first fixed pipe 103, and the second connection flange 111 is rotatably installed in the threaded cavity on the outlet side of the second fixed pipe 104.

[0024] When using the utility model to effectively improve the heat exchange efficiency of the heat exchanger and enhance the practical performance of the heat exchanger, the device is first fixed through the base plate 101, and then the inlet side of the first connecting flange 110 is connected to the input pipelines of the heat storage system and the waste heat recovery system through a T-shaped connecting pipe, and the on and off are respectively controlled by electric control valves. Similarly, the second connecting flange 111 will be connected to the output pipelines of the heat storage system and the waste heat recovery system, and the on and off are also respectively controlled by electric control valves. Under the action of the water pump of the heat storage system, hot water enters the first fixed pipe 103, the connecting pipe 105 and the second fixed pipe 104 in the heat exchanger for transportation and use. The temperature of the hot water in circulation is higher than the temperature of the composite organic phase change material in the heat exchanger. In the process of circulation and output, the hot water will exchange heat with the composite organic phase change material to store the heat in the phase. The phase change material is melted to achieve heat storage. Then, when it is recycled, the control system is switched to close the hot water delivery pipeline and switch to the cold water delivery pipeline. The cold water is transported and circulated from the first fixed pipe 103, the connecting pipe 105 and the second fixed pipe 104. When the cold water circulates, it is lower than the freezing point of the composite organic phase change material. At this time, the phase change material releases heat and begins to solidify, releasing the stored heat to the circulating cold water, heating it up, and then transporting it out for use. The utility model adopts a composite organic phase change material as a heat exchange medium and encapsulates it on the outside of the connecting pipe 105, which simplifies the heat exchanger structure. At the same time, it can store a large amount of thermal energy when the temperature change is very small, and can also realize the compatible use of energy storage equipment and heat exchange equipment, thereby effectively improving the heat exchange efficiency and improving the practical performance of the heat exchanger when in use. Embodiment 2

[0025] like Figure 3 As shown, Figure 3It is a schematic diagram of the overall structure of the energy storage and heat exchange device based on phase change material. On the basis of the first embodiment, the utility model provides an energy storage and heat exchange device based on phase change material, and the auxiliary component also includes a T-shaped threaded barrel 201 and a T-shaped screw 202.

[0026] The T-shaped threaded barrel 201 is fixedly connected to the bottom plate 101 and is located at the bottom of the bottom plate 101; the T-shaped screw 202 is threadedly connected to the T-shaped threaded barrel 201 and is located at the bottom of the T-shaped threaded barrel 201. The T-shaped threaded barrel 201 is fixed to the bottom of the bottom plate 101 by bolts, and the bottom of the T-shaped screw 202 is a support plate with a mounting hole, and the top threaded end is rotatably matched with the T-shaped threaded barrel 201, and a locking nut is provided to abut and lock.

[0027] In this embodiment, by providing the T-shaped threaded barrel 201 and the T-shaped screw 202, during installation, the locking nut can be loosened first, and then the matching position of the T-shaped screw 202 and the T-shaped threaded barrel 201 can be adjusted to adjust the installation height of the device. After the adjustment is completed and locked, the device is fixed through the mounting hole on the bottom support plate of the T-shaped screw 202, which is beneficial for the device to be matched with external delivery pipelines of different heights, thereby further improving the practical performance of the heat exchange device.

[0028] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A phase change material based energy storage and heat exchange device, comprising a bottom plate, characterized in that: Also included are auxiliary components; The auxiliary component includes a support plate, a first fixed tube, a second fixed tube, a connecting tube, a first sleeve, a second sleeve and a connecting member. The support plate is fixedly connected to the bottom plate and is located on both sides of the bottom plate. The first fixed tube is fixedly connected to the support plate and is located on the support plate. The second fixed tube is fixedly connected to the support plate and is located on a side of the support plate away from the first fixed tube. The connecting tube is detachably connected to the first fixed tube and the second fixed tube respectively and is located between the first fixed tube and the second fixed tube. The first sleeve is detachably connected to the connecting tube and is located above the connecting tube. The second sleeve is detachably connected to the connecting tube and is fixedly connected to the first sleeve and is located below the connecting tube. The connecting members are respectively arranged on one side of the first fixed tube and the second fixed tube.

2. The phase change material based energy storage and heat exchange device according to claim 1, characterized in that: The first sleeve has a first flange, which is fixedly connected to the first sleeve and located on the first sleeve.

3. The phase change material based energy storage and heat exchange device according to claim 1, characterized in that: The second sleeve is provided with a second flange, and the second flange is fixedly connected to the second sleeve and is located on the second sleeve.

4. The phase change material based energy storage and heat exchange device according to claim 1, characterized in that: The connecting member includes a first connecting flange and a second connecting flange, the first connecting flange is rotatably connected to the first fixed pipe and is located on a side of the first fixed pipe away from the connecting pipe; the second connecting flange is rotatably connected to the second fixed pipe and is located on a side of the second fixed pipe away from the connecting pipe.

5. The phase change material based energy storage and heat exchange device according to claim 1, characterized in that: The auxiliary component also includes a T-shaped threaded barrel and a T-shaped screw. The T-shaped threaded barrel is fixedly connected to the base plate and is located at the bottom of the base plate; the T-shaped screw is threadedly connected to the T-shaped threaded barrel and is located at the bottom of the T-shaped threaded barrel.

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