CN113884192A - Temperature measuring device for high-temperature solid oxide fuel cell stack - Google Patents
Temperature measuring device for high-temperature solid oxide fuel cell stack Download PDFInfo
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- CN113884192A CN113884192A CN202111135365.1A CN202111135365A CN113884192A CN 113884192 A CN113884192 A CN 113884192A CN 202111135365 A CN202111135365 A CN 202111135365A CN 113884192 A CN113884192 A CN 113884192A
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- 239000000446 fuel Substances 0.000 title claims abstract description 57
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims description 56
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 44
- 239000010453 quartz Substances 0.000 claims description 28
- 239000000919 ceramic Substances 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 14
- 238000009529 body temperature measurement Methods 0.000 claims description 13
- 238000012805 post-processing Methods 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a temperature measuring device for a high-temperature solid oxide fuel cell stack, which comprises a fuel cell, a three-degree-of-freedom rectangular coordinate manipulator and a measuring mechanism, wherein the three-degree-of-freedom rectangular coordinate manipulator is connected with the measuring mechanism; the measuring mechanism is driven by the working end of the three-degree-of-freedom rectangular coordinate manipulator to measure the temperature inside a stack air passage of the fuel cell; the invention has simple structure and quick response, and has the performance of measuring the temperature of different positions in the gas channel of the fuel cell stack.
Description
Technical Field
The invention relates to the technical field of high-temperature solid oxide fuel cells, in particular to a temperature measuring device for a high-temperature solid oxide fuel cell stack.
Background
The energy demand is closely related to economic development, and energy conservation and emission reduction are urgent no matter from the perspective of economic sustainable development need or human living environment; in the implementation scheme of energy conservation and emission reduction, the method for improving the energy utilization efficiency is the most effective method; the fuel cell is a power generation device which directly converts the chemical energy of fuel into electric energy through electrochemical reaction, wherein the high-temperature solid oxide fuel cell is a fuel cell which uses ceramic membrane, the working temperature is generally above 700 ℃, hydrogen can be used as fuel, and carbon-based fuel such as natural gas, coal-made synthesis gas and the like can also be used; because the fuel cell does not need to be subjected to a combustion process during working, the efficiency is not limited by Carnot cycle, the power generation efficiency is improved, and meanwhile, the pollution is greatly reduced, so that the fuel cell is a new-generation fuel cell technology; the performance and service life of solid oxide fuel cells are affected by operating temperatures, excessive thermal gradients can cause mechanical damage to the fuel cell, and internal defects can also cause local overheating.
The current research is mainly to obtain the temperature distribution condition of the fuel cell by modeling and simulating the solid oxide fuel cell, and the models are simplified to different degrees, almost all thermocouple measurement methods are adopted when the temperature of the fuel cell is actually measured, although the thermocouple temperature measurement is accurate, the temperature of only a few special measurement points can be obtained, and the requirement of measuring the temperature of the fuel cell is difficult to meet.
Therefore, how to provide a device that has a simple structure and a fast response and can measure different positions of the fuel cell according to the requirement is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a device for measuring stack temperature of a high temperature solid oxide fuel cell, which aims to solve the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high temperature solid oxide fuel cell stack temperature measurement device, comprising:
a fuel cell;
a three-degree-of-freedom rectangular coordinate manipulator; the three-degree-of-freedom rectangular coordinate manipulator is arranged on one side of a stack air passage of the fuel cell;
a measuring mechanism; the measuring mechanism is installed at the working end of the three-degree-of-freedom rectangular coordinate manipulator, can be inserted into the galvanic pile air channel and is used for measuring the temperature of the galvanic pile air channel.
Through the technical scheme, the temperature measuring device for the high-temperature solid oxide fuel cell comprises the fuel cell, a three-degree-of-freedom rectangular coordinate manipulator and a measuring mechanism; the measuring mechanism is driven by the working end of the three-degree-of-freedom rectangular coordinate manipulator to measure the temperature inside a stack air passage of the fuel cell; the fuel cell temperature measuring device is simple in structure and quick in response, and can measure the temperature of different positions of the fuel cell according to requirements.
Preferably, in the above device for measuring the temperature of the high-temperature solid oxide fuel cell stack, the measuring mechanism includes an optical fiber fixing device and an optical fiber array; the optical fiber fixing device is fixedly arranged on the working end; the optical fiber array is composed of a plurality of quartz optical fibers; one end of the quartz optical fiber is connected with the optical fiber fixing device, and the other end of the quartz optical fiber points to the galvanic pile air channel. The structure is simple and stable, the quartz fiber can bear extremely high temperature, the diameter of the optical fiber is small, the structure of the air passage of the fuel cell pile can not be changed, and the optical fiber can directly extend into the air outlet passage of the pile.
Preferably, in the above device for measuring temperature of a high temperature solid oxide fuel cell stack, a post-processing module is connected to the silica fiber, and the thermal radiation power measured by the silica fiber is transmitted to the signal processing mechanism through the post-processing module. The structure is simple and stable.
Preferably, in the device for measuring the temperature of the high-temperature solid oxide fuel cell stack, the post-processing module comprises a ceramic black body cavity and an optical fiber sensing wire; the ceramic black body cavity is fixed in the middle of the quartz optical fiber; the optical fiber sensing line is attached to the quartz optical fiber and is positioned between the ceramic black body cavity and the signal processing mechanism. The structure is simple and stable.
Preferably, in the device for measuring the temperature of the high-temperature solid oxide fuel cell stack, the signal processing mechanism comprises a photoelectric detector, a signal processing unit and an upper computer; the photoelectric detector receives thermal radiation data converted by the quartz optical fiber through the ceramic black body cavity and the optical fiber sensing line; the signal processing unit receives the signal of the photoelectric detector and converts the signal into a voltage value corresponding to the temperature; and the upper computer stores the data converted by the signal processing unit and realizes the temperature measurement and monitoring of the air passage of the galvanic pile. The structure is simple and stable.
Preferably, in the temperature measuring device for the high-temperature solid oxide fuel cell stack, a ceramic tube is sleeved outside the quartz optical fiber, and the ceramic tube wraps the ceramic black body cavity and the optical fiber sensing line. Simple structure is stable, and the fracture of quartz fiber can effectively be prevented in the setting of ceramic pipe.
Preferably, in the above high temperature solid oxide fuel cell stack temperature measuring device, the number of the silica optical fibers is at least 2. The optical fiber array composed of the plurality of quartz optical fibers is clamped by the working end to move, so that the temperature of different positions in the air flue of the galvanic pile can be measured, and the temperature measurement efficiency is improved.
Preferably, in the above device for measuring the temperature of the high-temperature solid oxide fuel cell stack, a grating ruler is mounted on the three-degree-of-freedom rectangular coordinate manipulator. The temperature distribution of the air flue of the galvanic pile can be obtained by acquiring the position information of the three-degree-of-freedom rectangular coordinate manipulator measured by the grating ruler through the high-speed counter.
Compared with the prior art, the invention discloses and provides the temperature measuring device for the high-temperature solid oxide fuel cell stack, which has the following beneficial effects:
1. simple structure and quick response.
2. The temperature of different positions in the air flue of the electric pile can be measured according to requirements, and the temperature measurement efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a high-temperature solid oxide fuel cell stack temperature measuring device according to the present invention;
FIG. 2 is a schematic structural diagram of a measuring mechanism provided by the present invention;
FIG. 3 is a block diagram of a quartz fiber temperature measurement system according to the present invention.
Wherein:
1-a fuel cell;
11-a stack gas passage;
2-three-degree-of-freedom rectangular coordinate mechanical arm;
21-a working end;
3-a measuring mechanism;
31-an optical fiber fixing device; an array of 32 optical fibers; 321-a silica fiber;
4-post processing module;
41-ceramic blackbody cavity; 42-optical fiber sensing line;
5-a signal processing mechanism;
51-a photodetector; 52-a signal processing unit; 53-an upper computer;
6-ceramic tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to fig. 3, an embodiment of the invention discloses a temperature measuring device for a high-temperature solid oxide fuel cell stack, including:
a fuel cell 1;
a three-degree-of-freedom rectangular coordinate manipulator 2; the three-degree-of-freedom rectangular coordinate manipulator 2 is arranged on one side of a stack air channel 11 of the fuel cell 1;
a measuring mechanism 3; the measuring mechanism 3 is installed at the working end 21 of the three-degree-of-freedom rectangular coordinate manipulator 2, can be inserted into the stack air passage 11, and is used for measuring the temperature of the stack air passage 11.
In order to further optimize the above technical solution, the measuring mechanism 3 includes an optical fiber fixing device 31 and an optical fiber array 32; the optical fiber fixing device 31 is fixedly arranged on the working end 21; the optical fiber array 32 is composed of a plurality of silica optical fibers 321; one end of the quartz optical fiber 321 is connected with the optical fiber fixing device 31, and the other end points to the stack gas channel 11.
In order to further optimize the above technical solution, the post-processing module 4 is connected to the silica fiber 321, and the thermal radiation power measured by the silica fiber 321 is transmitted to the signal processing mechanism 5 through the post-processing module 4.
In order to further optimize the above technical solution, the post-processing module 4 includes a ceramic black body cavity 41 and an optical fiber sensing line 42; the ceramic blackbody cavity 41 is fixed in the middle of the quartz optical fiber 321; the optical fiber sensing wire 42 is bonded to the quartz optical fiber 321 and is located between the ceramic black body cavity 41 and the signal processing means 5.
In order to further optimize the above technical solution, the signal processing mechanism 5 includes a photodetector 51, a signal processing unit 52 and an upper computer 53; the photoelectric detector 51 receives the thermal radiation data converted by the quartz optical fiber 321 through the ceramic blackbody cavity 41 and the optical fiber sensing line 42; the signal processing unit 52 receives the signal of the photodetector 51 and converts the signal into a voltage value corresponding to the temperature; the upper computer 53 stores the data converted by the signal processing unit 52, and realizes temperature measurement and monitoring of the stack air passage 11.
In order to further optimize the technical scheme, the ceramic tube 6 is sleeved outside the quartz optical fiber 321, and the ceramic tube 6 wraps the ceramic black body cavity 41 and the optical fiber sensing wire 42.
In order to further optimize the above solution, the number of the silica optical fibers 321 is at least 2.
In order to further optimize the technical scheme, a grating ruler is installed on the three-degree-of-freedom rectangular coordinate manipulator 2.
The specific implementation mode of the invention is as follows:
when measuring the temperature of the stack air flue 11, through the motion of many quartz fiber 321 of 2 work ends 21 centre gripping of three degree of freedom rectangular coordinate manipulator, measure the inside temperature of stack air flue 11, quartz fiber 321 passes through the thermal radiation data of ceramic blackbody chamber 41 and the conversion of optic fibre sensing line 42, transmit to photoelectric detector 51, signal processor 52 receives photoelectric detector 51's signal, and convert the voltage value that corresponds the temperature, the data of converting are preserved by host computer 53, and simultaneously, the manipulator positional information that the grating chi was surveyed is gathered by high-speed counter, finally can carry out the temperature measurement and obtain the temperature distribution of stack air flue 11 to the position that the stack air flue 11 is different, thereby improve temperature measurement efficiency.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended 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 (8)
1. A high temperature solid oxide fuel cell stack temperature measurement device, comprising:
a fuel cell (1);
a three-degree-of-freedom rectangular coordinate manipulator (2); the three-degree-of-freedom rectangular coordinate manipulator (2) is arranged on one side of a stack air channel (11) of the fuel cell (1);
a measuring mechanism (3); the measuring mechanism (3) is installed at a working end (21) of the three-degree-of-freedom rectangular coordinate manipulator (2), can be inserted into the galvanic pile air channel (11), and is used for measuring the temperature of the galvanic pile air channel (11).
2. A high temperature solid oxide fuel cell stack temperature measurement device according to claim 1, wherein the measurement mechanism (3) comprises a fiber holder (31) and a fiber array (32); the optical fiber fixing device (31) is fixedly arranged on the working end (21); the optical fiber array (32) is composed of a plurality of quartz optical fibers (321); one end of the quartz optical fiber (321) is connected with the optical fiber fixing device (31), and the other end of the quartz optical fiber points to the galvanic pile air channel (11).
3. The device for measuring the temperature of the high-temperature solid oxide fuel cell stack according to claim 2, wherein a post-processing module (4) is connected to the quartz optical fiber (321), and the thermal radiation power measured by the quartz optical fiber (321) is transmitted to the signal processing mechanism (5) through the post-processing module (4).
4. A high temperature solid oxide fuel cell stack temperature measurement device according to claim 3, wherein the post-processing module (4) comprises a ceramic black body cavity (41) and a fiber optic sensing wire (42); the ceramic black body cavity (41) is fixed in the middle of the quartz optical fiber (321); the optical fiber sensing wire (42) is attached to the quartz optical fiber (321) and is positioned between the ceramic black body cavity (41) and the signal processing mechanism (5).
5. A high temperature solid oxide fuel cell stack temperature measuring device according to claim 4, characterized in that the signal processing mechanism (5) comprises a photodetector (51), a signal processing unit (52) and an upper computer (53); the photoelectric detector (51) receives thermal radiation data converted by the quartz optical fiber (321) through the ceramic black body cavity (41) and the optical fiber sensing wire (42); the signal processing unit (52) receives the signal of the photoelectric detector (51) and converts the signal into a voltage value corresponding to the temperature; the upper computer (53) stores the data converted by the signal processing unit (52) to realize temperature measurement and monitoring of the galvanic pile air channel (11).
6. The device for measuring the temperature of the high-temperature solid oxide fuel cell stack according to claim 4, wherein a ceramic tube (6) is sleeved outside the quartz optical fiber (321), and the ceramic tube (6) wraps the ceramic black body cavity (41) and the optical fiber sensing wire (42).
7. The device for measuring the temperature of the high-temperature solid oxide fuel cell stack according to claim 5, wherein the number of the quartz optical fibers (321) is at least 2.
8. The device for measuring the temperature of the high-temperature solid oxide fuel cell stack according to claim 1, wherein a grating ruler is installed on the three-degree-of-freedom rectangular coordinate manipulator (2).
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| CN202111135365.1A CN113884192B (en) | 2021-09-27 | 2021-09-27 | Temperature measuring device for high-temperature solid oxide fuel cell stack |
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| CN202111135365.1A CN113884192B (en) | 2021-09-27 | 2021-09-27 | Temperature measuring device for high-temperature solid oxide fuel cell stack |
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| CN113884192B CN113884192B (en) | 2022-06-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115483416A (en) * | 2022-06-30 | 2022-12-16 | 华北电力大学 | System and method for testing external temperature field of SOFC (solid oxide Fuel cell) stack |
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| CN113884192B (en) | 2022-06-21 |
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