Portable power supply device based on solid oxide fuel cell

Abstract

The utility model provides a portable power supply device based on a solid oxide fuel cell, which comprises a shell, a solid oxide fuel cell (SOFC) electric pile, a combustion chamber and a lithium battery are arranged in the shell, a reforming chamber is fixedly connected in the combustion chamber, a plurality of steel pipes are arranged in one end of the reforming chamber, electric heating wires are arranged in the steel pipes, and the electric heating wires are connected with the lithium battery. A crystallized magnesium oxide layer is filled between the steel pipe and the electric heating wire; the SOFC electric pile is connected with the combustion chamber through a communicating pipe, a wavy heat transfer plate is mounted on the surface of the reforming chamber, and a plurality of spherical combustion catalysts are mounted on the inner side wall of the combustion chamber; the portable power supply device based on the solid oxide fuel cell has the advantages of being free of pollution, low in noise and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of solid oxide fuel cells, in particular to a portable power supply device based on solid oxide fuel cells. Background Art

[0002] Solid oxide fuel cell belongs to the third generation of fuel cells, referred to as SOFC, is an all-solid-state chemical power generation device that directly converts the chemical energy stored in fuel and oxidant into electrical energy in an efficient and environmentally friendly manner at medium and high temperatures.

[0003] With the improvement of the quality of life, more and more people like to camp outdoors. Electricity consumption in the wild is a big problem. People often bring their own power generation equipment or energy storage equipment to supply power. Existing commonly used power generation equipment such as gasoline generators and diesel generators are often bulky, difficult to carry, noisy and have heavy exhaust odor. Energy storage equipment such as batteries has problems such as small capacity and short continuous power supply time, which is not convenient for people to use in the wild.

[0004] Therefore, it is necessary to provide a new portable power supply device based on solid oxide fuel cells to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a portable power supply device based on a solid oxide fuel cell which is pollution-free, has low noise and is easy to carry.

[0006] In order to solve the above technical problems, the utility model provides a portable power supply device based on solid oxide fuel cells, comprising: a shell, a SOFC stack, a combustion chamber and a lithium battery are installed inside the shell, the interior of the combustion chamber is fixedly connected to a reforming chamber, a plurality of steel pipes are installed inside one end of the reforming chamber, a heating wire is installed inside the steel pipe, and a crystalline magnesium oxide layer is filled between the steel pipe and the heating wire; the SOFC stack and the combustion chamber are connected by a connecting pipe, a wavy heat transfer plate is installed on the surface of the reforming chamber, and a plurality of spherical combustion catalysts are installed on the inner wall of the combustion chamber.

[0007] Preferably, a plurality of charging sockets are installed on the surface of the shell, an AC-DC converter is installed inside the shell, and the AC-DC converter is electrically connected to the charging sockets and the lithium battery.

[0008] Preferably, a junction box is mounted on the surface of the housing, and the junction box is electrically connected to the lithium battery and the heating wire.

[0009] Preferably, an air intake pipe is symmetrically mounted on the side wall of the shell, and the air intake pipe is connected to one end of the reforming chamber.

[0010] Preferably, a connecting pipe is installed at the other end of the reforming chamber, and the connecting pipe is connected to the interior of the SOFC stack.

[0011] Preferably, air outlet pipes are symmetrically mounted on the side walls of the shell, and the air outlet pipes are connected to the interior of the combustion chamber.

[0012] Preferably, an igniter is installed on the side wall of the reforming chamber, and the igniter is aligned with the top end of the connecting pipe.

[0013] Compared with the related art, the portable power supply device based on solid oxide fuel cell provided by the utility model has the following beneficial effects:

[0014] The utility model provides a portable power supply device based on solid oxide fuel cells. Inside the shell, the combustion chamber and the reforming chamber are combined together, so that the device space is saved. During the starting process, the gas is heated by a heating wire, so the starting time of the SOFC stack is shortened. The lithium battery is used in conjunction with the fuel cell. The lithium battery first increases the electric energy for the heating wire operation. The electric energy generated after the SOFC stack operation is transmitted to the lithium battery for storage. The lithium battery then outputs it to the electrical appliance, and the voltage is stable. Compared with conventional gasoline generators, diesel generators, etc., which are often bulky and difficult to carry, have high operating noise and heavy exhaust odor, the present device is small in size, light in weight, noiseless and easy to carry. Compared with the problems of small capacity and short continuous power supply time of lithium batteries, the present device can generate electricity indefinitely as long as there is fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a portable power supply device based on a solid oxide fuel cell provided by the utility model;

[0016] Figure 2 for Figure 1 The schematic diagram of the internal structure of the shell shown;

[0017] Figure 3 for Figure 2 A side view of the internal structure of the combustion chamber is shown;

[0018] Figure 4 for Figure 3 The schematic diagram of the internal structure of the reforming chamber shown;

[0019] Figure 5 for Figure 2 Schematic diagram of the internal structure of the combustion chamber shown.

[0020] Numbers in the figure: 1. shell, 2. charging socket, 3. junction box, 4. air inlet pipe, 5. air outlet pipe, 6. connecting pipe, 7. partition, 8. SOFC stack, 9. combustion chamber, 10. lithium battery, 11. AC-DC converter, 12. heat transfer plate, 13. ceramic insulation board, 14. heating wire, 15. crystalline magnesium oxide layer, 16. steel pipe, 17. combustion catalyst, 18. connecting pipe, 19. igniter, 20. reforming chamber, 21. partition. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] See also Figure 1 to Figure 5 , Figure 1 A schematic structural diagram of a preferred embodiment of a portable power supply device based on a solid oxide fuel cell provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the internal structure of the shell shown; Figure 3 for Figure 2 A side view of the internal structure of the combustion chamber is shown; Figure 4 for Figure 3 The schematic diagram of the internal structure of the reforming chamber shown; Figure 5 for Figure 2The schematic diagram of the internal structure of the combustion chamber is shown. The portable power supply device based on solid oxide fuel cells includes: a housing 1, a SOFC stack 8, a combustion chamber 9 and a lithium battery 10 are installed inside the housing 1, the interior of the combustion chamber 9 is fixedly connected to the reforming chamber 20, a ceramic insulation board 13 is installed inside one end of the reforming chamber 20, and a plurality of steel pipes 16 are arranged on the side wall of the ceramic insulation board 13, and the ceramic insulation board 13 maintains the temperature inside the combustion chamber 9 to prevent the temperature inside the combustion chamber 9 from dissipating too quickly; a heating wire 14 is installed inside the steel pipe 16; when the SOFC stack 8 is started, the lithium battery 10 is turned on to supply power to the heating wire 14, and the heating wire 14 generates heat inside the steel pipe 16. A crystalline magnesium oxide layer 15 is filled between the steel pipe 16 and the heating wire 14. The crystalline magnesium oxide layer 15 has good thermal conductivity and insulation, so that the heat emitted by the heating wire 14 can be dissipated into the interior of the reforming chamber 20. When the reforming chamber 20 is heated to 750°C, the reforming gas begins to enter the interior of the reforming chamber 20 for high-temperature reforming. A partition 21 is installed inside the reforming chamber 20. The partition 21 divides the interior of the reforming chamber 20 into two spaces, so that oxygen and fuel can be reformed at high temperatures in the reforming chamber 20 respectively; the reformed gas enters the SOFC stack 8 for power generation, the fuel enters the anode inside the SOFC stack 8, and the oxygen enters the cathode inside the SOFC stack 8; the SOFC stack 8 directly converts the chemical energy stored in the fuel and the oxidant into electrical energy in an efficient and environmentally friendly manner at medium and high temperatures, the SOFC stack 8 is electrically connected to the lithium battery 10, and the electrical energy generated by the SOFC stack 8 is stored in the lithium battery 10.

[0023] The SOFC stack 8 is connected to the combustion chamber 9 via a connecting pipe 6, a wavy heat transfer plate 12 is installed on the surface of the reforming chamber 20, and a plurality of spherical combustion catalysts 17 are installed on the inner wall of the combustion chamber 9; the relatively high temperature exhaust gas generated by the SOFC stack 8 enters the interior of the combustion chamber 9 through the connecting pipe 6, and the residual fuel in the exhaust gas contacts the combustion catalyst 17 after being ignited. The combustion catalyst 17 is spherical, which increases the contact area between the combustion catalyst 17 and the fuel, thereby accelerating the combustion of the fuel. The heat dissipated by the burned fuel is dissipated into the interior of the reforming chamber 9 through the heat transfer plate 12, maintaining the internal high temperature and performing high-temperature reforming on the reformed gas. The surface of the heat transfer plate 12 is wavy, which increases the contact area of ​​the gas, thereby more effectively maintaining the temperature inside the reforming chamber 20 and facilitating the heating of the reformed gas.

[0024] A plurality of charging sockets 2 are installed on the surface of the shell 1, and an AC-DC converter 11 is installed inside the shell 1, and the AC-DC converter 11 is electrically connected to the charging socket 2 and the lithium battery 10. The charging socket 2 is divided into a DC socket and an AC socket. The current inside the lithium battery 10 changes the direction of the circuit through the AC-DC converter 11 and is converted into AC or DC, and DC or AC is obtained through the DC socket and the AC socket respectively.

[0025] The housing 1 is provided with a junction box 3, which is electrically connected to the lithium battery 10 and the heating wire 14. In order to connect the heating wire 14 to the lithium battery 10 through the junction box 3,

[0026] An air intake pipe 4 is symmetrically installed on the side wall of the housing 1 , and the air intake pipe 4 is connected to one end of the reforming chamber 20 , so as to facilitate the reforming gas to be transported into the interior of the reforming chamber 20 through the air intake pipe 4 .

[0027] A connecting pipe 18 is installed at the other end of the reforming chamber 20 , and the connecting pipe 18 is connected to the interior of the SOFC stack 8 , so that the gas after high-temperature reforming in the reforming chamber 20 can be transported into the interior of the SOFC stack 8 through the connecting pipe 18 .

[0028] An exhaust pipe 5 is symmetrically mounted on the side wall of the housing 1 , and the exhaust pipe 5 is connected to the interior of the combustion chamber 9 , so that the exhaust gas generated after combustion in the combustion chamber 9 can be discharged from the interior of the combustion chamber 9 through the exhaust pipe 5 .

[0029] The igniter 19 is installed on the side wall of the reforming chamber 20, and the igniter 19 is aligned with the top of the connecting pipe 6, so that the gas transported into the reforming chamber 20 through the connecting pipe 6 can contact the igniter 19, and the igniter 19 ignites the exhaust gas.

[0030] The working principle of the portable power supply device based on solid oxide fuel cell provided by the utility model is as follows: gas storage bottles of hydrocarbons such as methane and propane and oxygen cylinders in the storage chamber are respectively connected to the intake pipe 4; the lithium battery 10 is turned on to power the heating wire 14, and the heating wire 14 generates heat inside the steel pipe 16. A crystalline magnesium oxide layer 15 is filled between the steel pipe 16 and the heating wire 14. The crystalline magnesium oxide layer 15 has good thermal conductivity and insulation, so that the heat emitted by the heating wire 14 can be dissipated into the interior of the reforming chamber 20. When the reforming chamber 20 is heated to 750°C, the gas storage bottle is opened to allow the gas to begin to enter the interior of the reforming chamber 20 for high-temperature reforming. A partition 21 is installed inside the reforming chamber 20. The partition 21 divides the interior of the reforming chamber 20 into two spaces, so that oxygen and fuel can be reformed at high temperatures in the reforming chamber 20 respectively; the reformed gas enters the SOFC stack 8 through the connecting pipe 18 to generate electricity, the fuel enters the anode inside the SOFC stack 8, and the oxygen enters the cathode inside the SOFC stack 8; the SOFC stack 8 directly converts the chemical energy stored in the fuel and the oxidant into electrical energy in an efficient and environmentally friendly manner at medium and high temperatures, the SOFC stack 8 is electrically connected to the lithium battery 10, and the electrical energy generated by the SOFC stack 8 is stored in the The interior of the lithium battery 10; the high temperature exhaust gas generated by the power generation of the SOFC stack 8 enters the interior of the combustion chamber 9 through the connecting pipe 6, and the residual fuel in the exhaust gas is ignited by the igniter 19 and contacts the combustion catalyst 17. The combustion catalyst 17 is spherical, which increases the contact area between the combustion catalyst 17 and the fuel, thereby accelerating the combustion of the fuel. The heat emitted by the burned fuel is dissipated into the interior of the reforming chamber 9 through the heat transfer plate 12, maintaining the internal high temperature and performing high-temperature reforming on the reforming gas. After the SOFC stack 8 is operated, the heating wire 14 is turned off; and the surface of the heat transfer plate 12 is wavy, which increases the contact area of ​​the gas, thereby more effectively maintaining the temperature inside the reforming chamber 20 and facilitating the heating of the reforming gas; when electric energy is needed, the charging socket 2 is divided into a DC socket and an AC socket, and the current inside the lithium battery 10 is converted into AC or DC by changing the direction of the circuit through the AC-DC converter 11, and DC or AC is obtained through the DC socket and the AC socket respectively.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A portable power supply device based on a solid oxide fuel cell, characterized in that: include: A shell (1), wherein a SOFC stack (8), a combustion chamber (9) and a lithium battery (10) are installed inside the shell (1), the interior of the combustion chamber (9) is fixedly connected to a reforming chamber (20), a ceramic insulation board (13) is installed inside one end of the reforming chamber (20), a partition board (21) is installed inside the reforming chamber (20), a plurality of steel pipes (16) are provided on the side wall of the ceramic insulation board (13), a heating wire (14) is installed inside the steel pipe (16), and a crystalline magnesium oxide layer (15) is filled between the steel pipe (16) and the heating wire (14); The SOFC stack (8) is connected to the combustion chamber (9) via a connecting pipe (6); a corrugated heat transfer plate (12) is installed on the surface of the reforming chamber (20); and a plurality of spherical combustion catalysts (17) are installed on the inner wall of the combustion chamber (9).

2. The portable power source device based on solid oxide fuel cell according to claim 1, characterized in that: A plurality of charging sockets (2) are installed on the surface of the housing (1), an AC-DC converter (11) is installed inside the housing (1), and the AC-DC converter (11) is electrically connected to the charging sockets (2) and the lithium battery (10).

3. The portable power source device based on solid oxide fuel cell according to claim 1, characterized in that: A junction box (3) is mounted on the surface of the housing (1), and the junction box (3) is electrically connected to the lithium battery (10) and the heating wire (14).

4. The portable power source device for solid oxide fuel cells according to claim 1, characterized in that: An air intake pipe (4) is symmetrically mounted on the side wall of the housing (1), and the air intake pipe (4) is connected to one end of the reforming chamber (20).

5. The portable power source device for solid oxide fuel cells according to claim 4, characterized in that: A connecting pipe (18) is installed at the other end of the reforming chamber (20), and the connecting pipe (18) is in communication with the interior of the SOFC stack (8).

6. The portable power source device for solid oxide fuel cells according to claim 1, characterized in that: An air outlet pipe (5) is symmetrically mounted on the side wall of the outer shell (1), and the air outlet pipe (5) is connected to the interior of the combustion chamber (9).

7. The portable power source device for solid oxide fuel cells according to claim 1, characterized in that: An igniter (19) is installed on the side wall of the reforming chamber (20), and the igniter (19) is aligned with the top end of the connecting pipe (6).

Images