WO2020062446A1

WO2020062446A1 - Sofc battery control device

Info

Publication number: WO2020062446A1
Application number: PCT/CN2018/114036
Authority: WO
Inventors: 吴钢; 谭耀纯; 姚登杰; 杨华政
Original assignee: 佛山索弗克氢能源有限公司
Priority date: 2018-09-26
Filing date: 2018-11-06
Publication date: 2020-04-02
Also published as: CN109461950B; CN109461950A

Abstract

An SOFC battery control device, characterized by comprising a SOFC galvanic pile assembly, an air homogenizing chamber (5), a first solenoid valve (1), a first air pump (2), a second solenoid valve (3), a heat exchanger (6), a fuel device (20), a flow regulator (21), an air mixing chamber assembly, a second air pump (23), an ignition pin (7), a first thermocouple (8), a second thermocouple (9), a third thermocouple (11), an ignition device (12), a first switch (13), a control unit (16), a second switch (19), an auxiliary power supply module (25), a driving device (14), a display device (15), and a communication end (18). The SOFC galvanic pile assembly comprises a galvanic pile cavity (4), a heat exchanger (6), and a galvanic pile tube set (10). The SOFC battery control device features intuitive acquisition of working conditions of an SOFC galvanic pile assembly, so as to adjust air supply according to the working conditions of the SOFC galvanic pile assembly, thereby improving the working efficiency of the SOFC galvanic pile assembly, and effectively solving the technical difficulty of temperature regulation of SOFC galvanic pile assemblies, and features safe use and other advantages.

Description

SOFC battery control device

Technical field

The invention relates to a SOFC battery control device.

Background technique

At present, fuel cells are an efficient, clean power generation technology that directly converts the chemical energy of fuel into electrical energy without going through a combustion process. The forefront of many fuel cell technologies is the solid oxide fuel cell (SOFC). In addition to using hydrogen fuel, it can also directly use various multi-component fuels such as gas, natural gas, and biomass gas, which has wide fuel adaptability. It is easy to be compatible with the existing energy supply system. At the same time, SOFC has higher power generation efficiency. The primary power generation efficiency of SOFC is about 45% to 60%, and the total efficiency of combined heat and power is 90%. SOFC has a full solid-state structure, long operating life, and SOFC. The current service life is about 80,000 hours. There are three different technical forms of SOFC single cells: flat type, tube type and plate and tube type. These three technical forms have basically the same working principle, but their performance is different due to changes in their physical structure. The tube type can be understood as The flat plate is rolled into a tube shape, and the plate tube type can be understood as a plurality of tubes side by side. The invention is a technical innovation of the SOFC battery combination technology proposed for the tube technology form; there are several major problems with the tube technology today, among which the sealing problem, the fuel preheating problem, the heat dissipation problem and the temperature adjustment are the technical problems of the tube technology.

Summary of the Invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a SOFC battery control device, which can intuitively understand the working condition of SOFC stack components, and can adjust the gas supply amount according to the working conditions of SOFC stack components, thereby improving the The efficiency of SOFC stack components effectively solves the technical problem of temperature adjustment of SOFC stack components.

In order to achieve the above-mentioned object, the present invention is achieved in such a way that it is a SOFC battery control device, which includes: an SOFC stack assembly and a soaking chamber; the SOFC stack assembly includes a stack cavity, a heat exchanger, and a stack A tube set; a cathode working chamber and a combustion chamber are respectively provided in the reactor cavity; the electrical stack tube set is arranged in the cathode working chamber; the gas outlet of the electrical stack tube set communicates with the combustion chamber; The chamber is set in the cathode working chamber, and there is more than one micro hole in the air equalizing chamber for the gas in the air equalizing chamber to enter the cathode working chamber;

A first solenoid valve, a first air pump, a second solenoid valve, and a heat exchanger; the heat exchanger is disposed in a combustion chamber, and an air inlet of the heat exchanger is in communication with an air outlet of the second solenoid valve; The air outlet of is connected to the first air inlet of the air equalizing chamber, the second air inlet of the air equalizing chamber is connected to the air outlet of the first solenoid valve, and the air outlet of the first air pump is respectively connected to the first electromagnetic valve. The air inlet of the valve is in communication with the air inlet of the second solenoid valve;

A fuel device, a flow regulator, a mixing chamber assembly, and a second air pump; the air outlet of the fuel device communicates with the air inlet of the flow regulator, and the air outlet of the flow regulator and the air outlet of the second air pump Both are in communication with the air inlet of the mixing chamber component, and the air outlet of the mixing chamber component is in communication with the air inlet of the electric stack tube group;

An ignition pin, a first thermocouple, a second thermocouple, and a third thermocouple; the ignition pin and the first thermocouple are all arranged in a combustion chamber, and the ignition pin is located beside an air outlet of an electric stack tube group; the first The thermocouple is located next to the ignition needle; the second and third thermocouples are both located in the cathode working chamber, the second thermocouple is located near the end of the gas outlet of the stack tube, and the third thermocouple is located Beside the end of the inlet of the stack;

The ignition device, the first switch, the control unit, the second switch and the auxiliary power supply assembly; the electric power output ends of the SOFC stack assembly are electrically connected to the k terminal of the auxiliary power supply assembly and the b terminal of the control unit, respectively, and m of the auxiliary power supply assembly. The second terminal is electrically connected to the j terminal of the control unit through a second switch, and the first terminal of the auxiliary power component is electrically connected to the input terminal of the ignition device through the first switch, and the ignition pin is electrically connected to the output terminal of the ignition device. The first thermocouple is electrically connected to the e terminal of the control unit, the second thermocouple is electrically connected to the d terminal of the control unit, the third thermocouple is electrically connected to the c terminal of the control unit, and the flow regulator is connected to the control The a terminal of the unit is electrically connected; and

A driving device, a display device, and a communication terminal; the control terminal of the driving device is electrically connected to the f terminal of the control unit, and the output terminals of the driving device are respectively connected to the first air pump, the second air pump, the first solenoid valve, and the second solenoid The valve and the flow regulator are electrically connected to control the working states of the first air pump, the second air pump, the first solenoid valve, the second solenoid valve and the flow regulator. The display device is electrically connected to the g terminal of the control unit. The communication terminal is electrically connected to the i terminal of the control unit.

In this technical solution, the mixing chamber assembly includes a first mixing chamber and a second mixing chamber, and the first mixing chamber and the second mixing chamber are connected in series; the inlet of the first mixing chamber is connected in series; The air outlet is in communication with the air outlet of the flow regulator and the air outlet of the second air pump, and the air outlet of the second mixing chamber is in communication with the air inlet of the stack tube.

In this technical solution, an acoustic-optical alarm device is further included, and the acoustic-optical alarm device is electrically connected to the h terminal of the control unit.

Compared with the prior art, the present invention has the advantages of being able to intuitively understand the working condition of the SOFC stack assembly, and adjusting the gas supply amount according to the working condition of the SOFC stack assembly, thereby improving the working efficiency of the SOFC stack assembly and effectively It solves the technical problems and safety of SOFC reactor stack temperature adjustment.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic block diagram of the work of the present invention;

FIG. 2 is a schematic block diagram of the operation of the driving device in the present invention.

detailed description

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only, and should not be construed to indicate or imply relative importance.

As shown in Figures 1 and 2, it is a SOFC battery control device, including:

SOFC stack assembly and equalization chamber 5; the SOFC stack assembly includes a stack cavity 4, a heat exchanger 6, and a stack tube set 10; a cathode working chamber 41 is respectively provided in the stack cavity 4 And a combustion chamber 42, the electric stack tube group 10 is provided in the cathode working chamber 41, the gas outlet of the electric stack tube group 10 is communicated with the combustion chamber 42, and the gas equalization chamber 5 is provided in the cathode working chamber 41, The gas chamber 5 is provided with more than one micro-hole 51 to allow the gas in the gas equalization chamber 5 to enter the cathode working chamber 41;

The first solenoid valve 1, the first air pump 2, the second solenoid valve 3, and the heat exchanger 6; the heat exchanger 6 is provided in the combustion chamber 42, and the air inlet of the heat exchanger 6 and the second solenoid valve 3 The air outlet of the heat exchanger 6 is in communication with the first air inlet of the air equalization chamber 5, and the second air inlet of the air equalization chamber 5 is in communication with the air outlet of the first solenoid valve 1. The air outlet of the first air pump 2 is in communication with the air inlet of the first solenoid valve 1 and the air inlet of the second solenoid valve 3, respectively;

The fuel device 20, the flow regulator 21, the mixing chamber assembly, and the second air pump 23; the air outlet of the fuel device 20 is in communication with the air inlet of the flow regulator 21, and the air outlet of the flow regulator 21 is The air inlet of the air chamber assembly is in communication, the air outlet of the second air pump 23 is in communication with the air inlet of the mixing chamber assembly, and the air outlet of the air chamber is in communication with the air intake of the stack tube group 10 ;

The ignition pin 7, the first thermocouple 8, the second thermocouple 9, and the third thermocouple 11; the ignition pin 7 is provided in the combustion chamber 42 and is located beside the gas outlet of the electric stack tube group 10, the first thermoelectric The couple 8 is located in the combustion chamber 42 and beside the ignition needle 7 to detect whether the ignition of the ignition needle 7 is successful. The second thermocouple 9 is located in the cathode working chamber 41 and beside the end of the gas outlet of the stack tube group 10 The third thermocouple 11 is located in the cathode working chamber 41 and is located near the end of the air inlet of the stack tube group 10, the second thermocouple 9 and the third thermocouple 11 are redundant with each other, and the second thermocouple is 9 and the third thermocouple 11 are used to collect the temperature information of SOFC stack components;

Ignition device 12, first switch 13, control unit 16, second switch 19 and auxiliary power source assembly 25; the electric power output terminal 43 of the SOFC stack assembly is respectively connected to the k terminal of auxiliary power assembly 25 and the b terminal of control unit 16 Electrically connected, the power output terminal 43 of the SOFC stack module can charge the auxiliary power module 25. The m terminal of the auxiliary power module 25 is electrically connected to the j terminal of the control unit 16 through the second switch 19 to provide power to the control unit 16 and The control unit 16 monitors the power of the auxiliary power supply assembly 25. When the power of the auxiliary power supply assembly 25 is insufficient, the control unit 16 controls the power output terminal 43 to charge the auxiliary power supply assembly 25. One end of the auxiliary power supply assembly 25 is connected with the first switch 13 through The input terminal of the ignition device 12 is electrically connected, the output terminal of the ignition device 12 is electrically connected to the ignition pin 7, the first thermocouple 8 is electrically connected to the e terminal of the control unit 16 to transmit a signal to the control unit 16, The second thermocouple 9 is electrically connected to the d terminal of the control unit 16 to transmit a signal to the control unit 16, and the third thermocouple 11 is electrically connected to the c terminal of the control unit 16 to transmit a signal to the control unit. 16, the flow regulator 21 and a terminal electrically connected to the control unit 16 so that the user adjusts the operating state of the flow regulator 21; and

The driving device 14, the display device 15, and the communication terminal 18; the control terminal of the driving device 14 is electrically connected to the f terminal of the control unit 16, and the output terminals of the driving device 14 are respectively connected to the first air pump 2, the second air pump 23, The first solenoid valve 1, the second solenoid valve 3, and the flow regulator 21 are electrically connected to control the operations of the first air pump 2, the second air pump 23, the first solenoid valve 1, the second solenoid valve 3, and the flow regulator 21. State, the display device 15 is electrically connected to the g terminal of the control unit 16, and the communication terminal 18 is electrically connected to the i terminal of the control unit 16 so as to realize the data transmission of the Internet of Things and remote operation control functions.

During operation, the fuel in the fuel device 20 is fully mixed with the air through the mixing chamber assembly and enters the electric stack tube group 10. The working exhaust of the electric stack tube group 10 is discharged into the combustion chamber 42. The ignition needle 7 can ignite the combustion chamber 42 The working exhaust gas thus heats the gas in the heat exchanger 6, and the heated gas in the heat exchanger 6 is evenly diffused into the cathode working chamber 41 through the air equalizing chamber 5. When the temperature of the cathode working chamber is lower than 550 degrees, the second electromagnetic field is turned on. The valve 3 closes the first solenoid valve 1. The first air pump 2 sends air to the heat exchanger 6 through the second solenoid valve 3. The heated gas in the heat exchanger 6 enters the cathode working chamber 41 to lift the cathode. The temperature of the working chamber 41; when the temperature of the cathode working chamber 41 is higher than 550 degrees, the second solenoid valve 3 is closed, the first solenoid valve 1 is opened, and the first air pump 2 sends air to the cathode through the first solenoid valve 1 to work In the chamber 41, the temperature in the cathode working chamber 41 is reduced; the driving device 12 outputs a driving power of 0 to 12 V to the first air pump 2 and the second air pump 23, respectively, so as to adjust the temperature of the first air pump 2 and the second air pump 23. Output flow; drive device 14 outputs 0 ～ 24 to flow regulator 21 V power to adjust the fuel output flow; the driving device 14 controls the first solenoid valve 1 and the second solenoid valve 23 to open or close; the power output terminal 42 of the SOFC stack assembly performs charge control on the auxiliary power assembly 25 so that the auxiliary power assembly 25 The electric power supply ignition device 12 performs ignition.

In this embodiment, the mixing chamber assembly includes a first mixing chamber 22 and a second mixing chamber 24. The first mixing chamber 22 and the second mixing chamber 24 are connected in series; the first mixing chamber The air inlet of the air chamber 22 is in communication with the air outlet of the flow regulator 21 and the air outlet of the second air pump 23, and the air outlet of the second air mixing chamber 24 is in communication with the air inlet of the stack tube 10.

In this embodiment, an audible and visual alarm device 17 is further included. The audible and visual alarm device 17 is electrically connected to the h terminal of the control unit. During operation, the control unit 16 monitors the flow on the flow regulator 21, and when the fuel flow decreases by 10% every thirty minutes, a first-level alarm; when the fuel flow decreases by 10% every ten minutes, a special-level alarm; the control unit 16 passes the first The second thermocouple 9 and the third thermocouple 11 monitor the temperature of the cathode working chamber 41. When the temperature of the cathode working chamber 41 is greater than 720 degrees, a first-level alarm; when the temperature of the cathode working chamber 41 is greater than 750 degrees, a special alarm; control The unit 16 monitors the power of the power output terminal 42 and alarms when the ratio of the rated fuel flow to the rated power is greater than 40%.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those of ordinary skill in the art, many variations, modifications, replacements, and deformations of these embodiments without departing from the principles and purposes of the present invention still fall within the protection scope of the present invention.

Claims

A SOFC battery control device is characterized by comprising:

SOFC stack assembly and gas equalization chamber (5); the SOFC stack assembly includes a stack cavity (4), a heat exchanger (6), and a stack tube assembly (10); in the stack cavity ( 4) A cathode working chamber (41) and a combustion chamber (42) are respectively provided, and the electric stack tube group (10) is provided in the cathode working chamber (41). The chamber (42) is connected, and the gas equalizing chamber (5) is provided in the cathode working chamber (41), and more than one is provided on the gas equalizing chamber (5) to allow the gas in the gas equalizing chamber (5) to enter the cathode working chamber. Micropore (51) in (41);

A first solenoid valve (1), a first air pump (2), a second solenoid valve (3), and a heat exchanger (6); the heat exchanger (6) is provided in a combustion chamber (42) to exchange heat The air inlet of the heat exchanger (6) is in communication with the air outlet of the second solenoid valve (3), and the air outlet of the heat exchanger (6) is in communication with the first air inlet of the air equalization chamber (5). The second air inlet of (5) is in communication with the air outlet of the first solenoid valve (1), and the air outlet of the first air pump (2) is connected to the air inlet of the first solenoid valve (1) and the second The air inlet of the solenoid valve (3) is connected;

A fuel device (20), a flow regulator (21), a mixing chamber assembly, and a second air pump (23); the air outlet of the fuel device (20) is in communication with the air inlet of the flow regulator (21), so The air outlet of the flow regulator (21) and the air outlet of the second air pump (23) are both in communication with the air inlet of the mixing chamber assembly, and the air outlet of the mixing chamber assembly is connected to the stack tube assembly (10) The air inlet is connected;

Ignition pin (7), first thermocouple (8), second thermocouple (9) and third thermocouple (11); the ignition pin (7) and first thermocouple (8) are all located in the combustion chamber In (42), the ignition pin (7) is located beside the gas outlet of the electric stack tube group (10), the first thermocouple (8) is located beside the ignition pin (7); the second thermocouple (9) and The third thermocouples (11) are all located in the cathode working chamber (41), the second thermocouples (9) are located near the ends of the gas outlets of the stack tube group (10), and the third thermocouples (11) are located Beside the end of the air inlet of the electric stack tube group (10);

The ignition device (12), the first switch (13), the control unit (16), the second switch (19), and the auxiliary power supply assembly (25); the electric power output end (43) of the SOFC stack assembly and the auxiliary power supply respectively The k terminal of the component (25) and the b terminal of the control unit (16) are electrically connected, and the m terminal of the auxiliary power component (25) is electrically connected to the j terminal of the control unit (16) through a second switch (19). The l terminal of the auxiliary power assembly (25) is electrically connected to the input terminal of the ignition device (12) through a first switch (13), and the ignition pin (7) is electrically connected to the output terminal of the ignition device (12). The first thermocouple (8) is electrically connected to the e terminal of the control unit (16), the second thermocouple (9) is electrically connected to the d terminal of the control unit (16), and the third thermocouple (11) is connected to The c terminal of the control unit (16) is electrically connected, and the flow regulator (21) is electrically connected to the a terminal of the control unit (16); and

The driving device (14), the display device (15) and the communication terminal (18); the control terminal of the driving device (14) is electrically connected to the f terminal of the control unit (16), and the output terminal of the driving device (14) is respectively connected with The first air pump (2), the second air pump (23), the first solenoid valve (1), the second solenoid valve (3) and the flow regulator (21) are electrically connected to control the first air pump (2), The working state of the second air pump (23), the first solenoid valve (1), the second solenoid valve (3), and the flow regulator (21), the display device (15) and the g end of the control unit (16) The communication terminal (18) is electrically connected to the i terminal of the control unit (16).
The SOFC battery control device according to claim 1, characterized in that the mixing chamber assembly includes a first mixing chamber (22) and a second mixing chamber (24), and the first mixing chamber (22) It is connected in series with the second air mixing chamber (24); the air inlets of the first air mixing chamber (22) are respectively connected with the air outlet of the flow regulator (21) and the air outlet of the second air pump (23), The air outlet of the second gas mixing chamber (24) is in communication with the air inlet of the electric stack tube group (10).
The SOFC battery control device according to claim 1, further comprising an acousto-optic alarm device (17), the acousto-optic alarm device (17) is electrically connected to the h terminal of the control unit.