Heat energy recovery device

Abstract

The utility model provides a heat energy recovery device, which comprises a phase change material container, a heat exchanger and a heat exchanger, the phase-change substance container is provided with an output interface for outputting gas out of the phase-change substance container after the phase-change substance is gasified, and an input interface for inputting liquid into the phase-change substance container after the phase-change substance is liquefied; the heat pipeline penetrates through the phase change material container, and the heat pipeline can exchange heat with the phase change material; the first end of the circulating pipeline is communicated with the gas output connector, and the second end of the circulating pipeline is communicated with the liquid input connector; the wind driven generator is arranged in the circulating pipeline so as to generate electric energy by using gas passing through the circulating pipeline; and the heat dissipation module is arranged on the circulating pipeline so that the phase change substance can be liquefied before entering the phase change substance container, the heat dissipation module is electrically connected with the wind driven generator, and the heat dissipation module utilizes the wind driven generator to supply power. On the premise that energy is saved, high heat energy recovery efficiency can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving technology, and in particular to a heat energy recovery device. Background Technology

[0002] In existing heat recovery devices, phase change materials (PCMs) are typically used for heat exchange with heat pipes. As the PCM's temperature rises, it transforms into a gas, and after cooling, it transforms back into a liquid. This cyclical phase change process recovers heat from the heat pipes. To achieve energy efficiency, some existing technologies employ pump-free operation. Pump-free systems rely primarily on the autonomous circulation of the PCM. However, the autonomous circulation efficiency of PCMs is extremely low. When the phase change coolant reaches its phase change temperature, it begins to change phase, transforming from liquid to gas. After passing through the circulation pipes, the limited heat dissipation capacity of the pipes means that the heat dissipated is negligible compared to the continuous heat provided by the heat source. The gas temperature at the end of the circulation pipes is essentially the same as the temperature at the inlet. Since the PCM needs to dissipate a significant amount of heat to transform into a liquid, only a very small portion of the gas in the circulation pipes completes the phase change. In this situation, the efficiency is extremely low, both in terms of cooling the heat source and heat recovery. Utility Model Content

[0003] The heat energy recovery device provided by this utility model can achieve a high heat energy recovery efficiency while saving energy.

[0004] This utility model provides a heat energy recovery device, comprising:

[0005] A phase change substance container for containing a phase change substance; the phase change substance container has an output port for discharging gas from the phase change substance after it has been vaporized to the outside of the phase change substance container, and an input port for discharging liquid from the phase change substance into the phase change substance container after it has been liquefied.

[0006] A heat pipe passes through the phase change material container, and the heat pipe is capable of exchanging heat with the phase change material;

[0007] A circulation pipe, wherein the first end of the circulation pipe is connected to the gas output port, and the second end of the circulation pipe is connected to the liquid input port;

[0008] A wind turbine generator is installed inside the circulation pipe to generate electricity using the gas passing through the circulation pipe.

[0009] A heat dissipation module is installed on the circulation pipe to liquefy the phase change substance before it enters the phase change substance container. The heat dissipation module is electrically connected to the wind turbine and is powered by the wind turbine.

[0010] Optionally, the device further includes:

[0011] A circulation pump is installed on the heat pipe and is electrically connected to the wind turbine to utilize the power supplied by the wind turbine.

[0012] Optionally, the device further includes:

[0013] An energy storage module is electrically connected to the wind turbine to store the electrical energy generated by the wind turbine; the energy storage module is also electrically connected to the heat dissipation module and the circulation pump to provide electrical energy to the heat dissipation module and the circulation pump.

[0014] Optionally, the energy storage module is electrically connected to the heat dissipation module or the circulation pump via a switch.

[0015] Optionally, the second end of the circulation pipe is connected to the liquid input interface via a one-way valve.

[0016] Optionally, the phase change material container also has a liquid replenishment port, which is connected to a liquid replenishment valve.

[0017] Optionally, at least part of the sidewalls of the phase change material container are made of a transparent material, and the height range of the transparent material is not less than the depth variation range of the phase change material.

[0018] Optionally, the top edge of the transparent material is flush with the top edge of the phase change material container, and the bottom edge of the transparent material is not lower than the top edge of the heat pipe.

[0019] Optionally, a pressure valve is provided on the top of the phase change material container so that the vaporized phase change material is discharged when the pressure in the phase change material container exceeds a preset pressure value.

[0020] Optionally, the heat dissipation module is located at the end of the circulation pipe.

[0021] In the technical solution provided by this utility model, the heat pipe passes through the phase change material container. Due to the heating effect of the higher temperature liquid or gas in the heat pipe, the phase change material in the container undergoes a phase change. The phase-change gas flows in the circulation pipe, driving the wind turbine connected to the circulation pipe to generate electricity. The wind turbine is electrically connected to the heat dissipation module to provide power to the heat dissipation module. Therefore, the heat dissipation module does not require an additional power supply. The heat dissipation module can improve the efficiency of the phase change material changing from a gaseous state to a liquid state, thereby realizing the efficient recovery of heat energy without the need for external energy supply. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a heat energy recovery device according to an embodiment of the present invention.

[0023] Phase change material container-1; transparent material-2; phase change material-3; heat pipe-4; liquid replenishment valve-5; pressure valve-6; circulation pipe-7; wind turbine generator-8; switch-9; energy storage module-10; circulation pump-11; one-way valve-12; heat dissipation module-13. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This utility model embodiment provides a heat energy recovery device, such as... Figure 1 Shown, including:

[0026] A phase change substance container 1 is used to contain a phase change substance 3; the phase change substance container 1 has an output port for the phase change substance 3 to output gas to the outside of the phase change substance container 1 after vaporization, and an input port for the phase change substance 3 to input liquid into the phase change substance container 1 after liquefaction.

[0027] In some embodiments, the phase change material 3 is a substance that can change from a liquid to a gaseous state after reaching a certain temperature, and then change back from a gaseous state to a liquid state after cooling. Through the phase change process of changing from a liquid to a gaseous state, the phase change material 3 can absorb a large amount of heat from the heat pipe 4, and then dissipate the absorbed heat to the outside through the phase change process of changing from a gaseous state to a liquid state, thereby realizing the recovery of thermal energy.

[0028] The heat pipe 4 passes through the phase change material container 1, and the heat pipe 4 can exchange heat with the phase change material 3;

[0029] In some embodiments, the heat pipe 4 is a pipe to be driven, and the heat pipe 4 can carry a liquid or gas at a higher temperature. In this embodiment, the heat pipe 4 carrying a liquid or gas at a higher temperature can be driven by heat energy recovery, for example, it can be used in a server liquid cooling system. Since the larger the contact area between the heat pipe 4 and the phase change material 3, the more beneficial it is to recover the heat energy of the heat pipe 4 and the more beneficial it is to cool the heat pipe 4, the heat pipe 4 is usually horizontally inserted through the phase change material container 1, so that the part of the heat pipe 4 passing through the phase change material container 1 is completely immersed in the phase change material 3.

[0030] The circulation pipe 7 has a first end connected to the gas output port and a second end connected to the liquid input port.

[0031] In some embodiments, the first end of the circulation pipe 7 is connected to the gas output port. When the phase change substance 3 changes to a gaseous state, it is output to the circulation pipe 7 through the gas output port. The second end of the circulation pipe 7 is connected to the liquid input port. When the phase change substance 3 changes to a liquid state, it is input to the phase change substance container 1 through the liquid input port.

[0032] A wind turbine 8 is installed inside the circulation pipe 7 to generate electricity using the gas passing through the circulation pipe 7.

[0033] In some embodiments, the wind turbine 8 is a device that is driven to rotate by the gas flowing through it, thereby converting wind energy into electrical energy. In this embodiment, the wind turbine 8 is installed in the circulation pipe 7. When the phase change substance 3, which has changed to a gaseous state, flows in the circulation pipe 7, it drives the wind turbine 8 to rotate, thereby generating electrical energy.

[0034] A heat dissipation module 13 is disposed on the circulation pipe 7 to liquefy the phase change substance 3 before it enters the phase change substance container 1. The heat dissipation module 13 is electrically connected to the wind turbine generator 8 and is powered by the wind turbine generator 8.

[0035] In some embodiments, the heat dissipation module 13 may be a radiator or a condenser, which reduces the temperature of the gas flowing through it, enabling it to change from a gaseous state to a liquid state and achieve a complete cycle.

[0036] In the technical solution provided by this utility model embodiment, the heat pipe 4 passes through the phase change material container 1. The phase change material 3 in the phase change material container 1 undergoes a phase change due to the heating effect of the higher temperature liquid or gas in the heat pipe 4. The phase-change gas flows in the circulation pipe 7, driving the wind turbine generator 8 connected to the circulation pipe 7 to generate electricity. The wind turbine generator 8 is electrically connected to the heat dissipation module 13 to provide power to the heat dissipation module 13. Therefore, the heat dissipation module 13 does not need an additional power supply. The heat dissipation module 13 can improve the efficiency of the phase change material changing from a gaseous state to a liquid state, thereby realizing the efficient recovery of heat energy without the need for external energy supply.

[0037] As an optional implementation, continue as follows Figure 1 As shown, the device further includes:

[0038] A circulation pump 11 is installed on the heat pipe 4 and is electrically connected to the wind turbine generator 8 to utilize the power supplied by the wind turbine generator 8.

[0039] In some embodiments, the circulating pump 11 is used to drive the heat medium in the heat pipe 4 to flow faster, so as to improve the heat exchange efficiency.

[0040] As an optional implementation, continue as follows Figure 1 As shown, the device further includes:

[0041] An energy storage module 10 is electrically connected to the wind turbine generator 8 to store the electrical energy generated by the wind turbine generator 8; the energy storage module 10 is also electrically connected to the heat dissipation module 13 and the circulation pump 11 to provide electrical energy to the heat dissipation module 13 and the circulation pump 11.

[0042] In some embodiments, the energy storage module 10 can be, for example, a battery, which stores electrical energy when the wind turbine 8 converts heat energy into electrical energy. Because the energy storage module 10 can store the electrical energy generated by the wind turbine 8, even though the wind turbine 8 cannot immediately supply power to the heat dissipation module 13 and the circulation pump 11 each time heat exchange is needed, the energy storage module 10 can provide immediate power, ensuring the immediate response of the circulation pump 11 and the heat dissipation module 13. For the energy storage module 10 itself, during initial use, an external power source can be used to charge the energy storage module 10, ensuring that the circulation pump 11 and the heat dissipation module 13 can respond immediately upon first use. Alternatively, initial use can be performed under conditions that allow for a certain degree of hysteresis, so that the energy storage module 10 can store energy during initial use, providing a foundation for subsequent use.

[0043] As an optional implementation, continue as follows Figure 1 As shown, the energy storage module 10 is electrically connected to the heat dissipation module 13 or the circulation pump 11 via the switch 9.

[0044] In some embodiments, the energy storage module 10 is electrically connected to the heat dissipation module 13 or the circulation pump 11 via a switch 9, which facilitates the control of the heat dissipation module 13 and the circulation pump 11. The heat dissipation module 13 and the circulation pump 11 can be electrically connected to the energy storage module 10 via multiple switches 9, or they can be controlled simultaneously via a single switch 9.

[0045] As an optional implementation, continue as follows Figure 1 As shown, the second end of the circulation pipe 7 is connected to the liquid input interface through a one-way valve 12.

[0046] In some embodiments, the second end of the circulation pipe 7 is connected to the liquid input interface through a one-way valve 12, which can prevent the phase change substance 3 from flowing into the circulation pipe 7 and ensure one-way circulation heat exchange.

[0047] As an optional implementation, continue as follows Figure 1 As shown, the phase change material container 1 also has a liquid replenishment interface, which is connected to a liquid replenishment valve 5.

[0048] In some embodiments, since the phase change substance 3 will inevitably be lost during the circulation process, a liquid replenishment interface and a liquid replenishment valve 5 are provided on the phase change substance container 1 in this embodiment so as to replenish the phase change substance 3 when it is lost.

[0049] As an optional implementation, continue as follows Figure 1 As shown, at least part of the sidewalls of the phase change material container 1 are made of transparent material 2, and the height range of the transparent material 2 is not less than the depth variation range of the phase change material 3.

[0050] In some embodiments, in order to observe the loss of phase change material 3 in a timely manner, it is necessary to use a transparent material 2 for part of the sidewall of the phase change material container 1, such as transparent tempered glass.

[0051] As an optional implementation, continue as follows Figure 1 As shown, the top edge of the transparent material 2 is flush with the top edge of the phase change material container 1, and the bottom edge of the transparent material 2 is not lower than the top edge of the heat pipe 4.

[0052] As an optional implementation, continue as follows Figure 1 As shown, a pressure valve 6 is provided on the top of the phase change material container 1 so that the vaporized phase change material 3 is discharged when the pressure of the phase change material container 1 exceeds a preset pressure value.

[0053] In some embodiments, pressure valve 6 is a valve that is set to a rated pressure and automatically opens to discharge gas when too much gas is generated, causing the pressure to exceed the rated pressure. In this embodiment, pressure valve 6 ensures the safety of phase change material container 1.

[0054] As an optional implementation, continue as follows Figure 1 As shown, the heat dissipation module 13 is located at the end of the circulation pipe 7.

[0055] In the technical solutions provided in the various embodiments of this utility model, the heat pipe 4 passes through the phase change material container 1. The phase change material 3 inside the phase change material container 1 undergoes a phase change due to the heating effect of the higher-temperature liquid or gas inside the heat pipe 4. The phase-change gas flows in the circulation pipe 7, driving the wind turbine generator 8 connected to the circulation pipe 7 to generate electricity. The wind turbine generator 8 is electrically connected to the heat dissipation module 13 to provide electrical energy to the heat dissipation module 13. Therefore, the heat dissipation module 13 does not require an additional power supply. The heat dissipation module 13 can improve the efficiency of the phase change material changing from a gaseous state to a liquid state, thereby achieving high-efficiency heat energy recovery without the need for external energy supply. Simultaneously, to further improve circulation efficiency, a circulation pump 11 can be installed on the circulation pipe 7 to accelerate the gas flow in the circulation pipe 7, thereby more efficiently cooling the heat pipe 4 and recovering heat energy. To improve the response speed of the heat dissipation module 13 and the circulation pump 11, an energy storage module 10 can also be installed. The energy storage module 10 can provide electrical energy to the heat dissipation module 13 and the circulation pump 11 at any time, and can also store the electrical energy generated by the wind turbine generator 8.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A heat energy recovery device, characterized in that, include: A phase change substance container for containing a phase change substance; the phase change substance container has an output port for discharging gas from the phase change substance after it has been vaporized to the outside of the phase change substance container, and an input port for discharging liquid from the phase change substance into the phase change substance container after it has been liquefied. A heat pipe passes through the phase change material container, and the heat pipe is capable of exchanging heat with the phase change material; A circulation pipe, wherein the first end of the circulation pipe is connected to the gas output port, and the second end of the circulation pipe is connected to the liquid input port; A wind turbine generator is installed inside the circulation pipe to generate electricity using the gas passing through the circulation pipe. A heat dissipation module is installed on the circulation pipe to liquefy the phase change substance before it enters the phase change substance container. The heat dissipation module is electrically connected to the wind turbine and is powered by the wind turbine.

2. The heat energy recovery device according to claim 1, characterized in that, The device further includes: A circulation pump is installed on the heat pipe and is electrically connected to the wind turbine to utilize the power supplied by the wind turbine.

3. The heat energy recovery device according to claim 2, characterized in that, The device further includes: An energy storage module is electrically connected to the wind turbine to store the electrical energy generated by the wind turbine; the energy storage module is also electrically connected to the heat dissipation module and the circulation pump to provide electrical energy to the heat dissipation module and the circulation pump.

4. The heat energy recovery device according to claim 3, characterized in that, The energy storage module is electrically connected to the heat dissipation module or the circulation pump via a switch.

5. The heat energy recovery device according to claim 1, characterized in that, The second end of the circulation pipe is connected to the liquid input interface via a one-way valve.

6. The heat energy recovery device according to claim 1, characterized in that, The phase change material container also has a liquid replenishment interface, which is connected to a liquid replenishment valve.

7. The heat energy recovery device according to claim 1, characterized in that, The phase change material container has at least a portion of its sidewalls made of a transparent material, and the height range of the transparent material is not less than the depth variation range of the phase change material.

8. The heat energy recovery device according to claim 7, characterized in that, The top edge of the transparent material is flush with the top edge of the phase change material container, and the bottom edge of the transparent material is not lower than the top edge of the heat pipe.

9. The heat energy recovery device according to claim 1, characterized in that, The top of the phase change substance container is equipped with a pressure valve so that when the pressure in the phase change substance container exceeds a preset pressure value, the vaporized phase change substance is discharged.

10. The heat energy recovery device according to claim 1, characterized in that, The heat dissipation module is located at the end of the circulation pipe.

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