Fixed power supply power generation system

Abstract

The utility model discloses a fixed power supply power generation system, which comprises a fuel cell power generation module, a power battery energy storage and discharge module, a DC / DC power supply conversion module, a DC / AC power supply conversion module, a system heat dissipation module and a main body frame, the main body frame is divided into an upper layer, a middle layer and a lower layer, and a 24V battery pack and a power battery module are arranged on the lower layer of the main body frame; an electric pile, a fuel cell system control unit FCU, a heater, an air compressor assembly and an intercooling humidifier are fixed on the middle layer of the main body frame, a DC / DC power supply conversion module, a DC / AC power supply conversion module, an expansion water tank and a hydrogen concentration sensor are mounted on the top layer of the main body frame, and the expansion water tank and the hydrogen concentration sensor belong to component parts of the fuel cell power generation module. All the parts are designed in a modularized mode, arrangement of different parts can be effectively adapted, the structural layout is reasonable, the structure is compact, and the size is greatly reduced.

Description

Technical field:

[0001] The utility model relates to a fixed power supply power generation system. Background technology:

[0002] The fixed power generation system consists of a fuel cell power generation device and a power battery pack to store energy or supply power to the outside. The fuel cell power generation system has the advantages of high energy conversion efficiency, no pollution, long battery life, low noise, and wide adaptability, and can be widely used in residential, communication base stations, outdoor and other scenarios.

[0003] The fuel cell power generation device is mainly composed of a fuel cell stack and supporting BOP core components, wherein the supporting BOP includes an ejector, an air compressor, a water pump, a supporting controller and other components. External hydrogen is drained into the anode of the fuel cell stack through the ejector, and air enters the cathode of the stack through the air compressor through the intercooler humidifier. Hydrogen is decomposed into hydrogen atoms and releases electrons under the action of the anode catalyst, and the electrons reach the cathode through the external circuit. At the same time, hydrogen ions reach the cathode through the proton exchange membrane and the external circuit to react with electrons to produce water molecules. As a result, the hydrogen and air in the stack undergo an oxidation-reduction reaction to generate electrical energy, which is stored in the battery pack or output to the electrical equipment. The patent number is: 52222776705.5, and the patent name is: Utility model patent for field emergency power supply system based on fuel cells. In this patent, hydrogen cylinders, power batteries, and fuel cell power generation devices are concentrated together, but the structural layout is unreasonable, and there is a large volume and safety needs to be improved. Summary of the invention:

[0004] The utility model aims to provide a fixed power generation system, which can solve the technical problem of large volume caused by unreasonable layout of fixed power generation system in the prior art.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A fixed power generation system, comprising a fuel cell power generation module, a power battery energy storage and discharge module, a DC / DC power conversion module, a DC / AC power conversion module, a system heat dissipation module and a main frame, wherein the fuel cell power generation module generates electrical energy through a chemical reaction between hydrogen and oxygen in the fuel cell stack, and after being stepped down by the DC / DC power conversion module, one path is output to the power battery energy storage and discharge module for energy storage, and the other path is output to the DC / AC power conversion module to convert into alternating current for powering external devices; characterized in that:

[0007] The main frame is divided into three layers: upper, middle, and lower. The power battery energy storage and discharge module includes a 24V battery pack and a power battery module. The power battery module is installed in the middle position of the lower layer of the main frame to effectively reduce the center of gravity of the whole machine. The 24V battery pack is installed on the lower layer of the main frame and on one side of the power battery module. An air filtration component is also installed on the lower layer of the main frame, and the air filtration component belongs to the components of the fuel cell power generation module.

[0008] The stack, fuel cell system control unit FCU, heater, air compressor assembly, and intercooler humidifier are fixed in the middle layer of the main frame. The stack, fuel cell system control unit FCU, heater, air compressor assembly, and intercooler humidifier belong to the components of the fuel cell power generation module.

[0009] The DC / DC power conversion module, DC / AC power conversion module, expansion tank, and hydrogen concentration sensor are installed on the top layer of the main frame. The expansion tank and hydrogen concentration sensor belong to the components of the fuel cell power generation module.

[0010] The above-mentioned system heat dissipation module includes a heat dissipation water tank and a heat dissipation fan, and the system heat dissipation module is installed at the rear of the main frame.

[0011] The bottom of the above-mentioned main frame is welded with a support plate, and detachable front door panels, rear door panels, left door panels, right door panels, and top plates are arranged on the periphery of the main frame.

[0012] An observation port and a filling port for the expansion tank are arranged at the position of the above-mentioned top plate; a multi-functional display screen, an emergency stop switch, a start-stop switch, a main power switch, an operation indicator light, and a stop indicator light are arranged on the front door panel.

[0013] The bottom of the above-mentioned main frame is installed with moving rollers.

[0014] The high-voltage distribution box contained in the above-mentioned fuel cell power generation module is arranged in left and right, and the bottom outputs are electrically connected to isolate the positive and negative poles and enhance the safety of electrical components.

[0015] The hydrogen inlet of the above-mentioned fuel cell power generation module is led out from the main frame, and the hydrogen cylinder for storing hydrogen is located outside the main frame.

[0016] The above-mentioned main frame is built with square steel.

[0017] The above-mentioned air filter, deionized filter, and pipeline filter are arranged on the left side for easy maintenance; the air filter, deionized filter, and pipeline filter belong to the components of the fuel cell power generation module.

[0018] Compared with the prior art, the present utility model has the following effects:

[0019] Effect 1: The main frame of the present utility model is divided into upper, middle and lower layers. The power battery energy storage and discharge module includes a 24V battery pack and a power battery module. The power battery module is installed at the middle position of the lower layer of the main frame, effectively reducing the center of gravity of the whole machine. The 24V battery pack is installed on the lower layer of the main frame and on one side of the power battery module. An air filtration component is also installed on the lower layer of the main frame, and the air filtration component belongs to the components of the fuel cell power generation module. The stack, fuel cell system control unit FCU, heater, air compressor assembly and intercooled humidifier are fixed on the middle layer of the main frame, and the stack, fuel cell system control unit FCU, heater, air compressor assembly and intercooled humidifier belong to the components of the fuel cell power generation module. The DC / DC power conversion module, DC / AC power conversion module, expansion tank and hydrogen concentration sensor are installed on the top layer of the main frame, and the expansion tank and hydrogen concentration sensor belong to the components of the fuel cell power generation module. Each component adopts a modular design, which can effectively adapt to different component layouts, with a reasonable structural layout, a compact structure, and a significant reduction in volume.

[0020] Effect 2: The fuel cell power generation module adopts an integrated design, which is convenient for the assembly of the whole machine; the power battery module is installed at the middle position of the lower layer of the main frame, effectively reducing the center of gravity of the whole machine.

[0021] Effect 3: The expansion tank is arranged on the top layer, which can effectively reduce bubbles.

[0022] Effect 4: The system heat dissipation module is installed at the rear of the main frame, exhausting heat and diluting the exhaust gas, with a reasonable layout, which can further compress the volume.

[0023] Effect 5: The high-voltage distribution box is arranged on the left and right, and the bottom outputs are electrically connected, isolating the positive and negative poles and enhancing the safety of electrical components.

[0024] Effect 6: The air filter, deionized filter and pipeline filter are arranged on the left side of the main frame, which is convenient for maintenance.

[0025] Effect 7: The hydrogen inlet of the fuel cell power generation module is led out from the main frame, and the hydrogen cylinder for storing hydrogen is located outside the main frame, reducing the pipeline interfaces, reducing the risk of hydrogen leakage and improving safety.

[0026] Effect 8: Mobile rollers are installed at the bottom of the main frame, which is convenient for moving and handling. Description of the Drawings:

[0027] Figure 1 is the three-dimensional view of the fixed power generation system of the present utility model;

[0028] Figure 2 is the schematic diagram of the internal layout of the fixed power generation system of the present utility model;

[0029] Figure 3It is a schematic diagram of the structural decomposition of the main frame of the present utility model;

[0030] Figure 4 It is a schematic diagram of the fuel cell power generation module of the present utility model;

[0031] Figure 5 It is a schematic diagram of the power battery module of the present utility model. Specific embodiments:

[0032] The present utility model will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] As Figures 1 to 5 shown, a fixed power generation system provided in this embodiment includes a fuel cell power generation module 19, a power battery energy storage and discharge module, a DC / DC power conversion module 8, a DC / AC power conversion module 9, a system heat dissipation module 12, and a main frame 13. Among them, the fuel cell power generation module 19 generates electric energy through a chemical reaction of hydrogen and oxygen inside the fuel cell stack. After being stepped down by the DC / DC power conversion module 8, one path is output to the power battery energy storage and discharge module for energy storage, and the other path is output to the DC / AC power conversion module 9 to be converted into alternating current to supply power to external devices; it is characterized in that:

[0035] The main frame 13 is divided into upper, middle, and lower layers. The power battery energy storage and discharge module includes a 24V battery pack 4 and a power battery module 5. The power battery module 5 is installed in the middle position of the lower layer of the main frame 13 to effectively reduce the center of gravity of the whole machine. The 24V battery pack 4 is installed in the lower layer of the main frame 13 and on one side of the power battery module 5. An air filter assembly 6 is also installed in the lower layer of the main frame 13. The air filter assembly 6 belongs to the components of the fuel cell power generation module 19;

[0036] The fuel cell stack, fuel cell system control unit FCU, heater, air compressor assembly, and intermediate cooler and humidifier fixed in the middle layer of the main frame 13 belong to the components of the fuel cell power generation module 19;

[0037] The DC / DC power conversion module 8, DC / AC power conversion module 9, expansion tank 10, and hydrogen concentration sensor 11 are installed on the top layer of the main frame 13. The expansion tank 10 and hydrogen concentration sensor 11 belong to the components of the fuel cell power generation module 19.

[0038] Each component adopts a modular design, which can effectively adapt to different component layouts, with a reasonable structural layout, a compact structure, and a significantly reduced volume.

[0039] The above-mentioned system heat dissipation module 12 includes a heat dissipation water tank and a heat dissipation fan, and the system heat dissipation module is installed at the rear of the main body frame 13.

[0040] A support plate 131 is welded to the bottom of the above-mentioned main body frame 13, and detachable front door panels 16, rear door panels 17, left door panels 14, right door panels 15 and top plates 18 are arranged on the periphery of the main body frame 13, which is convenient for disassembly, maintenance and installation.

[0041] An observation port and a filling port for the expansion water tank are arranged at the position of the above-mentioned top plate 18; a multifunctional display screen 1, an emergency stop switch 2, a start-stop switch 3, a main power switch 7, an operation indicator light and a stop indicator light (not shown in the drawing) are arranged on the front door panel 16. The fixed power supply can operate the power battery and the fuel cell through the start button on the front door panel, which has the advantages of simple operation, etc.; the display screen 1 can display the working states of different components, power generation and other relevant information in real time, which is more intuitive.

[0042] Moving rollers 21 are installed at the bottom of the above-mentioned main body frame 13, which is convenient for moving in different scenarios.

[0043] The high-voltage distribution boxes contained in the above-mentioned fuel cell power generation module 19 are arranged separately on the left and right, and the bottom outputs are electrically connected to isolate the positive and negative poles, enhancing the safety of electrical components.

[0044] The hydrogen inlet of the above-mentioned fuel cell power generation module 19 is led out from the main body frame 13, and the hydrogen cylinder for storing hydrogen is located outside the main body frame 13, avoiding hydrogen leakage and improving safety.

[0045] The above-mentioned main body frame 13 is built with square steel, with a simple structure and easy access to materials.

[0046] The above-mentioned air filter, deionized filter and pipeline filter are arranged on the left side of the main body frame 13, which is convenient for maintenance; the air filter, deionized filter and pipeline filter belong to the components of the fuel cell power generation module 19.

[0047] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A fixed power generation system, comprising a fuel cell power generation module (19), a power battery energy storage and discharge module, a DC / DC power conversion module (8), a DC / AC power conversion module (9), a system heat dissipation module (12) and a main frame (13). The fuel cell power generation module (19) generates electric energy through a chemical reaction of hydrogen and oxygen inside the stack. After being stepped down by the DC / DC power conversion module (8), one path is output to the power battery energy storage and discharge module for energy storage, and the other path is output to the DC / AC power conversion module (9) to be converted into alternating current to supply power to external devices. It is characterized in that: The main frame (13) is divided into upper, middle and lower layers. The power battery energy storage and discharge module includes a 24V battery pack (4) and a power battery module (5). The power battery module (5) is installed at the middle position of the lower layer of the main frame (13) to effectively reduce the center of gravity of the whole machine. The 24V battery pack (4) is installed on the lower layer of the main frame (13) and on one side of the power battery module (5). An air filter assembly (6) is also installed on the lower layer of the main frame (13). The air filter assembly (6) belongs to the components of the fuel cell power generation module (19). The stack, fuel cell system control unit FCU, heater, air compressor assembly and intercooler humidifier are fixed on the middle layer of the main frame (13). The stack, fuel cell system control unit FCU, heater, air compressor assembly and intercooler humidifier belong to the components of the fuel cell power generation module (19). The DC / DC power conversion module (8), DC / AC power conversion module (9), expansion tank (10) and hydrogen concentration sensor (11) are installed on the top layer of the main frame (13). The expansion tank (10) and hydrogen concentration sensor (11) belong to the components of the fuel cell power generation module (19).

2. The fixed power generation system according to claim 1, wherein: The system heat dissipation module (12) includes a radiator water tank and a cooling fan. The system heat dissipation module is installed at the rear of the main frame (13).

3. The fixed power generation system according to claim 1 or 2, characterized in that: A support plate (131) is welded at the bottom of the main frame (13). Removable front door panel (16), rear door panel (17), left door panel (14), right door panel (15) and top plate (18) are arranged on the periphery of the main frame (13).

4. The fixed power generation system according to claim 3, characterized in that: An observation port and a filling port for the expansion tank are arranged at the position of the top plate (18); A multi-functional display screen (1), an emergency stop switch (2), a start-stop switch (3), a main power switch (7), an operation indicator light and a stop indicator light are arranged on the front door panel (16).

5. A fixed power generation system according to claim 4, characterized in that: Moving rollers (21) are installed at the bottom of the main frame (13).

6. A fixed power generation system according to claim 5, characterized in that: The high-voltage distribution box contained in the fuel cell power generation module (19) is arranged separately on the left and right and is electrically connected at the bottom output to isolate the positive and negative poles and enhance the safety of electrical components.

7. A fixed power generation system according to claim 6, characterized in that: The hydrogen inlet of the fuel cell power generation module (19) is led out from the main frame (13), and the hydrogen cylinder for storing hydrogen is located outside the main frame (13).

8. A fixed power generation system according to claim 7, characterized in that: The main frame (13) is built with square steel.

9. A fixed power generation system according to claim 5, characterized in that: The air filter, deionized water filter and pipeline filter are arranged on the left side of the main frame (13) for easy maintenance; The air filter, deionized water filter and pipeline filter belong to the components of the fuel cell power generation module (19).

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