Energy storage and heat management integrated system

Abstract

The invention provides an energy storage and heat management integrated system. The energy storage and heat management integrated system comprises a circulating pump, a heat radiator, a connecting pipeline, a fuel cell system and an energy supplementing storage battery pack, the circulating pump is used for driving cooling water to flow in the connecting pipeline; the cooling water is used for flowing through the high-power equipment to take away heat of the high-power equipment; the heat radiator is used for reducing the temperature of the cooling water; the fuel cell system is used for generating hydrogen and oxygen through electrolysis by taking the cooling water as a raw material, and the hydrogen and the oxygen are used for preparing electric energy; and the energy supplementing storage battery pack is used for storing the electric energy and providing the electric energy for the high-power equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aircraft thermal management, and particularly relates to an energy storage and thermal management integrated system. BACKGROUND

[0002] Spacecraft, satellites and other devices face the demand for high-power heat dissipation and power supply during on-orbit operation. The traditional solution separates heat dissipation and power supply, uses a radiator, fluid pipeline or refrigerator to dissipate the heat generated in the system, and uses a solar panel to obtain solar energy to generate power for the device. Heat dissipation and power supply are each a closed-loop system, which is not conducive to energy coordination and utilization of the whole device and scheme optimization. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, provide an energy storage and thermal management integrated system, which can realize on-device energy storage and device thermal control management collaborative work, so as to ensure that the temperature of the aircraft structure and the device meets the index requirements.

[0004] The present application provides an energy storage and thermal management integrated system, comprising:

[0005] a circulating pump, a heat dissipator, a connecting pipeline, a fuel cell system and a power supply battery pack;

[0006] The circulating pump is used to drive the cooling water to flow in the connecting pipeline;

[0007] The heat dissipator is used to reduce the temperature of the cooling water;

[0008] The cooling water is used to flow through a high-power device to take away the heat of the high-power device;

[0009] The fuel cell system is used to produce hydrogen and oxygen by electrolysis with the cooling water as raw material, and the hydrogen and oxygen are used to prepare electric energy;

[0010] The power supply battery pack is used to store the electric energy and provide electric energy for the high-power device.

[0011] Further, the fuel cell system comprises an electrolytic cell, an oxygen treatment pipeline, a hydrogen treatment pipeline and a fuel cell;

[0012] The oxygen treatment pipeline and the hydrogen treatment pipeline are connected with the electrolytic cell and the fuel cell respectively;

[0013] The electrolytic cell is used to produce oxygen and hydrogen by electrolysis;

[0014] The oxygen treatment pipeline and the hydrogen treatment pipeline are respectively used to transport, store and purify oxygen and hydrogen;

[0015] The fuel cell is used for chemical reaction of hydrogen and oxygen to generate electric energy.

[0016] Further, the oxygen treatment pipeline comprises an oxygen compression pump, an oxygen road cut-off valve, an oxygen tank and an oxygen road gas pre-treater connected in series.

[0017] The hydrogen treatment pipeline comprises a hydrogen road cut-off valve, a hydrogen tank, a hydrogen road gas pre-treater and a hydrogen compression pump connected in series.

[0018] The oxygen compression pump and the hydrogen compression pump respectively compress the oxygen and the hydrogen generated by electrolysis and are respectively stored in the oxygen tank and the hydrogen tank, and the oxygen road gas pre-treater and the hydrogen road gas pre-treater are respectively used for purifying the oxygen and the hydrogen; the oxygen road cut-off valve and the hydrogen road cut-off valve are respectively used for controlling the flow of the oxygen and the hydrogen in the pipeline.

[0019] Further, the energy storage and heat management integrated system further comprises a flow regulating valve arranged at the outlet of the heat radiator and used for adjusting the flow of the cooling water flowing into the fuel cell system and flowing through the high-power equipment.

[0020] Further, the energy storage and heat management integrated system further comprises a compensator arranged on the connecting pipeline and used for supplementing the cooling water in the connecting pipeline when the amount of the cooling water in the connecting pipeline is insufficient or storing the cooling water as a container when the amount of the cooling water in the connecting pipeline is relatively large.

[0021] Further, the fuel cell is connected to the connecting pipeline and used for recycling the water generated by the fuel cell.

[0022] The beneficial effects of the present application are as follows:

[0023] (1) The pump-driven fluid circuit is used as a heat bus scheme, and the heat generated by the equipment is carried to the heat radiator by the fluid water working medium, and the heat is dissipated to the external system or the environment through radiation or convection heat exchange;

[0024] (2) The working medium flow in the circuit is dynamically distributed to the main road and the bypass according to the heat dissipation demand, wherein the bypass can electrolyze water into hydrogen and oxygen and store them as storage medium;

[0025] (3) When the power demand of the working equipment is large, the energy storage battery pack is used for electric energy supply; the energy of the energy storage battery pack is derived from the chemical reaction of hydrogen and oxygen, and the chemical products can participate in the main circulating loop for equipment heat dissipation.

[0026] (4) The present invention uses a fluid loop as a thermal bus, integrates a power supply subsystem and a high-power equipment heat dissipation subsystem, and controls the dynamic adjustment of the working fluid flow through the flow regulating valve in the control subsystem to achieve dynamic matching of the needs of the power supply subsystem and the heat dissipation subsystem.

[0027] (5) This invention connects the on-device energy replenishment subsystem and the heat dissipation subsystem in series through a fluid loop. By increasing or decreasing one of the working fluids, it achieves coordinated and comprehensive utilization of electrical energy replenishment and high-power heat dissipation, thus providing a useful reference for the optimization of on-device energy storage and thermal control schemes. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0029] Figure 1 This is a schematic diagram of the composition of an integrated energy storage and thermal management system according to an embodiment of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0031] Example 1

[0032] This embodiment provides an integrated energy storage and thermal management system, the schematic diagram of which is shown below. Figure 1 As shown, it includes:

[0033] Circulation pump 1, heat exhauster 2, connecting pipeline, fuel cell system and replenishment battery pack 16;

[0034] The circulating pump 1 is used to drive the cooling water to flow in the connecting pipeline;

[0035] The heat vent 2 is used to reduce the temperature of the cooling water;

[0036] The cooling water is used to flow through high-power equipment and remove the heat from the high-power equipment.

[0037] The fuel cell system is used to generate hydrogen and oxygen through electrolysis using the cooling water as raw material, and the hydrogen and oxygen are used to generate electrical energy.

[0038] The rechargeable battery pack 16 is used to store electrical energy and provide power to the high-power equipment.

[0039] The fuel cell system includes: an electrolyzer 4, an oxygen processing pipeline, a hydrogen processing pipeline, and a fuel cell 9;

[0040] The oxygen treatment pipeline and the hydrogen treatment pipeline are respectively connected to the electrolyzer 4 and the fuel cell 9;

[0041] The electrolytic cell 4 is used to electrolyze and produce oxygen and hydrogen.

[0042] The oxygen processing pipeline and the hydrogen processing pipeline are used for transmitting, storing, and purifying oxygen and hydrogen, respectively.

[0043] The fuel cell 9 is used to generate electricity by chemically reacting hydrogen and oxygen.

[0044] The oxygen treatment pipeline includes an oxygen compressor pump 13, an oxygen circuit shut-off valve 11, an oxygen storage tank 12, and an oxygen circuit gas preprocessor 10 connected in series.

[0045] The hydrogen processing pipeline includes a hydrogen circuit shut-off valve 6, a hydrogen storage tank 7, a hydrogen circuit gas pre-processor 8, and a hydrogen compression pump 5 connected in series.

[0046] The oxygen compressor pump 13 and the hydrogen compressor pump 5 compress the oxygen and hydrogen generated by electrolysis, respectively, and store them in the oxygen storage tank 12 and the hydrogen storage tank 7, respectively. The oxygen path gas preprocessor 10 and the hydrogen path gas preprocessor 8 are used to purify the oxygen and hydrogen, respectively. The oxygen path shut-off valve 11 and the hydrogen path shut-off valve 6 are used to control the flow of oxygen and hydrogen in the pipeline, respectively.

[0047] The integrated energy storage and thermal management system also includes a flow regulating valve 3, which is located at the outlet of the heat exhauster 2, and is used to adjust the flow rate of the cooling water into the fuel cell system and through the high-power equipment.

[0048] The integrated energy storage and thermal management system also includes a compensator 14, which is installed on the connecting pipeline to supplement the cooling water in the connecting pipeline when the cooling water volume in the connecting pipeline is insufficient, or to store the cooling water as a container when the water volume in the connecting pipeline is excessive.

[0049] The fuel cell 9 is connected to the connecting pipeline for reusing the water produced by the fuel cell 9.

[0050] Example 2

[0051] As attached Figure 1As shown, this invention provides an integrated energy storage and thermal management system comprising a circulating pump 1, a heat exhauster 2, a flow regulating valve 3, an electrolyzer 4, a hydrogen compressor pump 5, a hydrogen path shut-off valve 6, a hydrogen storage tank 7, a hydrogen path gas pre-processor 8, a fuel cell 9, an oxygen path gas pre-processor 10, an oxygen path shut-off valve 11, an oxygen storage tank 12, an oxygen compressor pump 13, a compensator 14, a one-way shut-off valve 15, a supplementary battery pack 16, a high-power device 17, and connecting pipelines between the various devices and valves. The electrolyzer 4, hydrogen compressor pump 5, hydrogen path shut-off valve 6, hydrogen storage tank 7, hydrogen path gas pre-processor 8, fuel cell 9, oxygen path gas pre-processor 10, oxygen path shut-off valve 11, oxygen storage tank 12, and oxygen compressor pump 13 constitute the fuel cell system.

[0052] Circulation pump 1: Used to drive the liquid-water flow in a closed loop, draw fluid at the inlet, and increase its flow rate through the action of circulation pump 1, thus having the ability to overcome the flow resistance of the loop.

[0053] Heat vent 2: The inlet of heat vent 2 is connected to the outlet of circulating pump 1, and the outlet is connected to flow regulating valve 3. The function of heat vent 2 is to dissipate the heat collected by the fluid in the circuit. It can be a single-channel type (such as heat dissipation through external air cooling) or a dual-channel type (such as heat dissipation through another fluid).

[0054] Flow regulating valve 3: A three-way valve that regulates the flow distribution in the circuit. It can dynamically distribute the water flow in the main line to branch line 1 and branch line 2. The water in branch line 1 will enter the fuel cell system and participate in water electrolysis; the water in branch line 2 will flow through the radiator of the high-power equipment in the circuit, carrying heat to the heat exhauster 2. The valve opening of the flow regulating valve will be dynamically adjusted by the system's control system.

[0055] The fuel cell system includes an electrolyzer 4, a hydrogen compressor pump 5, a hydrogen circuit shut-off valve 6, a hydrogen storage tank 7, a hydrogen circuit gas pre-processor 8, a fuel cell 9, an oxygen circuit gas pre-processor 10, an oxygen circuit shut-off valve 11, an oxygen storage tank 12, and an oxygen compressor pump 13. Its function is to use the water medium in branch 1 to electrolyze and produce hydrogen and oxygen, storing the products in gas cylinders; according to the system's power demand, a portion of the hydrogen and oxygen participates in the reaction to generate electricity, supplementing the system's power shortage.

[0056] Electrolytic cell 4: Water from branch 1 enters the electrolytic cell and produces hydrogen and oxygen through electrolysis. The produced gases flow out to the gas storage cylinder through different pipelines.

[0057] Storage tanks: including hydrogen storage tank 7 and oxygen storage tank 12. The gas produced by the electrolysis cell is compressed into hydrogen storage tank 7 and oxygen storage tank 12 by hydrogen compression pump 5 and oxygen compression pump 13 respectively, and stored in high-pressure gaseous form.

[0058] Gas preprocessors: including hydrogen preprocessor 8 and oxygen preprocessor 10, are components that purify and regulate fuel gases to ensure that the hydrogen and oxygen entering the fuel reactor meet the reaction requirements, thereby improving the fuel cell reaction efficiency, lifespan and stability.

[0059] Fuel cell: This is the site where hydrogen and oxygen undergo a chemical reaction to produce electricity and water. The fuel sources are hydrogen in hydrogen storage tank 7 and oxygen in oxygen storage tank 12. The generated electricity is stored in the supplementary battery pack 16, and the generated water enters the circuit to participate in heat dissipation of the heating equipment.

[0060] Rechargeable battery pack 16: Temporarily stores the electrical energy generated by the fuel cell. When the power demand of high-power equipment in the system is insufficient, the electrical energy stored in the battery pack is released to the high-power equipment.

[0061] Compensator 14: Stores a certain amount of water in the circuit to replenish the water in the circuit when the water level is insufficient, or to store a certain amount of water as a container when the water level in the circuit is excessive.

[0062] The specific implementation scheme of this invention is as follows.

[0063] The water medium in the drive circuit of the circulating pump 1 is Figure 1 The water flows in the closed-loop pipeline shown. The heat generated by the high-power equipment will cause the water temperature to rise. The water with higher temperature will discharge the heat to the external environment in the form of convection or radiation in the heat vent 2, thereby reducing the temperature of the water itself.

[0064] The flow regulating valve 3, driven by the system controller, will dynamically adjust the flow distribution of water in branch 1 and branch 2, thereby achieving the purpose of generating electricity or exchanging heat as needed.

[0065] The fuel cell system uses water from branch 1 as feedstock, producing hydrogen and oxygen through electrolysis. The gases are then stored in high-pressure form in hydrogen and oxygen storage tanks by compression pumps in two gas pipelines for later use. The fuel in the storage tanks is processed by gas preprocessors 8 and 10 before entering the fuel cell generator 9 to produce electricity and water. The electricity is then sent to the rechargeable battery pack 16 for storage, while the water enters the circuit to participate in the equipment's heat dissipation cycle.

[0066] The water in branch 2 will circulate in a closed loop, absorbing heat from the heating equipment and dissipating it in the heat exhauster.

[0067] When the high-power device 17 has a high heat dissipation demand, the entire system operates at a high temperature. The control subsystem will adjust the angle of the flow regulating valve 3 to increase the water flow rate into the radiator of the high-power device, thereby meeting the system's heat dissipation requirements. When the overall heat dissipation demand of the system is low, the system operates at a low temperature. The control subsystem will adjust the angle of the flow regulating valve 3 to increase the water flow rate into the fuel cell subsystem, thereby generating more electrical energy to be stored in the replenishment battery pack 16. When the system is under the above high-temperature or low-temperature conditions, the water volume in the closed-loop pipeline will increase or decrease. The compensator 14 is used to store or replenish water in the loop to maintain the working fluid pressure and flow rate within a reasonable range.

[0068] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated energy storage and thermal management system, characterized in that, include: Circulation pump, heat ventilator, connecting pipelines, fuel cell system and rechargeable battery pack; The circulating pump is used to drive the cooling water to flow in the connecting pipeline; The cooling water is used to flow through high-power equipment and remove the heat from the high-power equipment. The heat vent is used to reduce the temperature of the cooling water; The fuel cell system is used to generate hydrogen and oxygen through electrolysis using the cooling water as raw material, and the hydrogen and oxygen are used to generate electrical energy. The rechargeable battery pack is used to store electrical energy and provide power to the high-power equipment.

2. The integrated energy storage and thermal management system according to claim 1, characterized in that, The fuel cell system includes: an electrolyzer, an oxygen processing pipeline, a hydrogen processing pipeline, and a fuel cell; The oxygen treatment pipeline and the hydrogen treatment pipeline are respectively connected to the electrolyzer and the fuel cell; The electrolytic cell is used to electrolyze and produce oxygen and hydrogen. The oxygen processing pipeline and the hydrogen processing pipeline are used for transmitting, storing, and purifying oxygen and hydrogen, respectively. The fuel cell is used to generate electricity by chemically reacting hydrogen and oxygen.

3. The integrated energy storage and thermal management system according to claim 1, characterized in that, The oxygen treatment pipeline includes an oxygen compressor pump, an oxygen shut-off valve, an oxygen storage tank, and an oxygen gas preprocessor connected in series. The hydrogen processing pipeline includes a hydrogen circuit shut-off valve, a hydrogen storage tank, a hydrogen circuit gas preprocessor, and a hydrogen compression pump connected in series. The oxygen compressor pump and hydrogen compressor pump compress the oxygen and hydrogen produced by electrolysis, respectively, and store them in the oxygen storage tank and hydrogen storage tank, respectively. The oxygen path gas preprocessor and hydrogen path gas preprocessor are used to purify the oxygen and hydrogen, respectively. The oxygen path shut-off valve and hydrogen path shut-off valve are used to control the flow of oxygen and hydrogen in the pipeline, respectively.

4. The integrated energy storage and thermal management system according to claim 1, characterized in that, The integrated energy storage and thermal management system also includes a flow regulating valve, which is located at the outlet of the heat exhauster, for adjusting the flow rate of the cooling water into the fuel cell system and through the high-power equipment.

5. The integrated energy storage and thermal management system according to claim 1, characterized in that, The integrated energy storage and thermal management system also includes a compensator installed on the connecting pipeline to supplement the cooling water in the connecting pipeline when the cooling water volume in the connecting pipeline is insufficient, or to store the cooling water as a container when the water volume in the connecting pipeline is excessive.

6. The integrated energy storage and thermal management system according to claim 1, characterized in that, The fuel cell is connected to the connecting pipeline for reusing the water produced by the fuel cell.

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