CN207611823U - A kind of solid oxide fuel cell high-temperature gas heat exchanger - Google Patents
A kind of solid oxide fuel cell high-temperature gas heat exchanger Download PDFInfo
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- CN207611823U CN207611823U CN201721746993.2U CN201721746993U CN207611823U CN 207611823 U CN207611823 U CN 207611823U CN 201721746993 U CN201721746993 U CN 201721746993U CN 207611823 U CN207611823 U CN 207611823U
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- heat exchanger
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- fuel gas
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- 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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of solid oxide fuel cell high-temperature gas heat exchangers, including heat smoke entry/exit pipeline, cold air/fuel gas entry/exit pipeline, flue gas shunting plate, cold air/fuel gas flow distribution plate, gas partitions plate, sealing strip, heat exchanger can be split as structural unit one by one by the utility model, each structural unit is split as the widgets of regular shape again, ensure that each face of weld is plane, the reliability of welding is improved while reduction connects difficulty, and is easy to check welding quality.Solid oxide fuel cell high-temperature gas heat exchanger provided by the utility model, each component ensures the air-tightness of each faying face using high temperature brazing or laser welding, each repetitive unit can be processed individually, overall processing is carried out again, the heat exchange efficiency of gas can be fully improved by adjusting the shape and gas demarcation strip thickness of flow distribution plate, assembly is simple, reliable and stable.
Description
Technical field
The utility model is related to technical field of heat exchange, and in particular to a kind of solid oxide fuel cell high-temperature gas changes
Hot device.
Background technology
Solid oxide fuel cell (SOFC) is that a kind of chemical energy by hydrocarbon fuel is direct by electrochemical reaction
It is converted into the device of electric energy, has the advantages that transformation efficiency is high, pollution-free, fuel selectivity is low etc..SOFC stand alone generating system packets
Pile and peripheral system (BOP) are included, the course of work is as follows：Air is preheated through air blower input heat exchanger, the air after preheating
Into sofc cathode；Hydrocarbon fuel gas after hydrogen or other reformations enters SOFC anodes after heat exchanger preheats；In cathode
The fuel gas completed with anode end reaction of air enter combustion chamber and fully burn, the heat smoke after burning enters heat exchanger to cold
Air and fuel gas are preheated；The high-temperature flue gas flowed out from heat exchanger still has certain utility value, can be used for
Flat machine carries out secondary electricity generation；Heat smoke after the above process can also meet the needs of Home Heating and hot water heat.
The current operating temperatures of SOFC are concentrated mainly on high temperature (600-800 DEG C), therefore it is required that heat exchanger highest work temperature
Degree is higher than 800 DEG C, and since cold air/fuel gas enters temperature near room temperature before heat exchanger, therefore heat exchanger need to be resistant to larger temperature
Spend gradient, therefore, moulding material of the high temperature heat-resisting frequently as heat exchanger.Due to heat exchanger structure complexity, it is impossible to directly
It is prepared by being machined, needs to be separately formed after splitting its structure, then spliced；Due to heat smoke, cold airflow
Road and external environment need absolutely separation, therefore need to ensure that splicing interface is absolutely sealed.To ensure heat exchange efficiency, heat exchanger isolation board
Steel plate used is relatively thin, and different components can only be welded by high temperature brazing.Important component of the heat exchanger as BOP needs
Ensure heat exchanger effectiveness as high as possible.Since its is complicated, working environment is severe, cause its difficulty of processing very big, state
The interior also rarely seen high-temperature heat-exchanging product for solid oxide fuel cell applications.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of solid oxide fuel cell high-temperature gas heat exchanger,
The heat exchanger is used for the preheating of cold air and fuel gas, has the advantages that processing is simple, reliability is high, structure is easily adjusted.
In order to solve the above-mentioned technical problem, the utility model provides a kind of solid oxide fuel cell high-temperature gas and changes
Hot device, including：
Heat smoke entry/exit pipeline is used for heat smoke inlet and outlet heat exchanger；
Cold air/fuel gas entry/exit pipeline is used for cold air/fuel gas inlet and outlet heat exchanger；
Flue gas shunting plate is uniformly distributed for gas in heat smoke circulation road；
Cold air/fuel gas flow distribution plate is uniformly distributed for gas in cold air/fuel gas flow channel；
Gas partitions plate, for completely cutting off heat smoke and cold air/fuel gas；
Sealing strip, the external environment for completely cutting off heat smoke circulation road and cold air/fuel gas flow channel and heat exchanger；
The flue gas shunting plate, gas partitions plate and sealing strip form heat smoke circulation road；The cold air/fuel qi leel
Flowing plate, gas partitions plate and sealing strip form cold air/fuel gas flow channel；
The heat smoke circulation road and cold air/fuel gas flow channel form a structural unit, by the structural unit
Neat stack constitutes heat exchanger successively in the up-down direction, and the heat smoke circulation road and cold air/fuel gas flow channel are upper
Lower section is alternately distributed upwards, is used for heat exchange.
Preferably, the heat smoke entry/exit pipeline, cold air/fuel gas entry/exit pipeline, gas partitions plate, sealing strip it
Between connected by high temperature brazing or laser welding, the air-tightness for ensureing each interface.
Wherein, the heat smoke entry/exit pipeline, cold air/fuel gas entry/exit pipeline, flue gas shunting plate, cold air/combustion
Material qi leel flowing plate, gas partitions plate, sealing strip are prepared by high temperature heat-resisting.
In the preferred embodiment in the utility model, the cold air/fuel gas flow distribution plate is divided into two parts, respectively cold air
Entrance guiding plate and the main flow distribution plate of cold air, the cold air inlet deflector is for ensureing gas even into the main shunting of the cold air
Plate.
In the preferred embodiment in the utility model, the thickness of the flue gas shunting plate and cold air/fuel gas flow distribution plate omits
Less than the sealing strip thickness, can be inserted in the heat smoke circulation road and cold air/fuel gas flow channel for ensureing.
Preferably, the flue gas shunting plate and cold air/fuel gas flow distribution plate can be processed by rolling or punch forming
Different shape improves heat exchange efficiency for increasing gas flow path.
In the preferred embodiment in the utility model, the sealing strip is divided into heat smoke sealing strip and cold air sealing strip, welding
It between adjacent gas partitions plate, and distributes alternately, for being the heat smoke circulation road and cold air/fuel gas flow channel
Independent air flow chamber is provided.
Heat exchanger can be split as structural unit one by one by the utility model, and each structural unit is split as regular shape again
Widgets, ensure that each face of weld is plane, improve the reliability of welding reducing the while of connecing difficulty, and be easy to
Check welding quality.The utility model can require easily to change the size and flow distribution plate of various components according to various heat exchange device
Shape is to meet the requirement of various heat exchange gas flow and fluid resistance.Solid oxide fuel cell provided by the utility model is high
Warm gas heat exchanger, each component ensure the air-tightness of each faying face, each repetitive unit using high temperature brazing or laser welding
It can individually process, then carry out overall processing, gas can be fully improved by adjusting the shape and gas demarcation strip thickness of flow distribution plate
The heat exchange efficiency of body, assembly is simple, reliable and stable.
Description of the drawings
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the overall structure for the solid oxide fuel cell high-temperature gas heat exchanger that the utility model embodiment provides
Schematic diagram；
Fig. 2 is the structural unit for the solid oxide fuel cell high-temperature gas heat exchanger that the utility model embodiment provides
Broken away view；
Fig. 3 is the structural unit for the solid oxide fuel cell high-temperature gas heat exchanger that the utility model embodiment provides
Figure；
Fig. 4 is that the whole of the solid oxide fuel cell high-temperature gas heat exchanger that the utility model embodiment provides is split
Figure.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
- Fig. 4 is please referred to Fig.1, Fig. 1 is the solid oxide fuel cell gas heat exchanger that the utility model embodiment provides
Overall schematic；Fig. 2 is the structure list for the solid oxide fuel cell gas heat exchanger that the utility model embodiment provides
First broken away view；Fig. 3 is the structural unit figure for the solid oxide fuel cell gas heat exchanger that the utility model embodiment provides；
Fig. 4 is the whole broken away view for the solid oxide fuel cell gas heat exchanger that the utility model embodiment provides.
Specifically, as shown in Figure 1, the solid oxide fuel cell high-temperature gas heat exchanger of the utility model includes gas
Demarcation strip 1, cold air inlet deflector 2, the main flow distribution plate 3 of cold air, flue gas shunting plate 4, heat smoke sealing strip 5, cold air sealing strip 10,
The cold air inlet deflector 2 and the main flow distribution plate 3 of cold air constitute cold air/fuel gas flow distribution plate, heat smoke sealing strip 5 and cold air
Sealing strip 10 constitutes sealing strip.Cold air inlet deflector 2, the main flow distribution plate 3 of cold air and flue gas shunting plate 4 are first passed through spot welding and fixed
In the corresponding position of gas partitions plate 1, as shown in Figure 2 by gas partitions plate 1, heat smoke sealing strip 5 and cold air sealing strip 10
Position places, and Ni base solders are added between heat smoke sealing strip 5 and cold air sealing strip 10 and gas demarcation strip 1, are passed through a little
Solid welding is brazed at high temperature behind body position, then places flue gas shunting plate 4 and cold air/fuel gas respectively in corresponding position
Flow distribution plate is respectively formed heat smoke circulation road and cold air/fuel gas flow channel, to prepare structural unit shown in Fig. 3, each
Structural unit includes a heat smoke circulation road and a cold air/fuel gas flow channel.Structural unit is neatly stacked successively,
And one layer of gas partitions plate 1 is added in the top, Ni base solders are added in each interface, carry out high temperature under an increased pressure
Soldering, produces the heat exchanger main body of the utility model.Heat smoke into pipeline 6, heat smoke go out pipeline 7, cold air/fuel gas into
Pipeline 8, cold air/fuel gas go out pipeline 9 and are connected as overall structure one completely admittedly by high temperature brazing and heat exchanger main body
Oxide body fuel cell gas heat exchanger, as shown in Fig. 1,4.In addition to high temperature brazing, laser welding also can be used as the one of welding
A means.
Heat exchanger can be split as structural unit one by one by the utility model, and each structural unit is split as regular shape again
Widgets, ensure that each face of weld is plane, improve the reliability of welding reducing the while of connecing difficulty, and be easy to
Check welding quality.The utility model can require easily to change the size and flow distribution plate of various components according to various heat exchange device
Shape is to meet the requirement of various heat exchange gas flow and fluid resistance.Solid oxide fuel cell provided by the utility model is high
Warm gas heat exchanger, each component ensure the air-tightness of each faying face, each repetitive unit using high temperature brazing or laser welding
It can individually process, then carry out overall processing, gas can be fully improved by adjusting the shape and gas demarcation strip thickness of flow distribution plate
The heat exchange efficiency of body, assembly is simple, reliable and stable.
Above disclosed is only several preferred embodiments of the utility model, cannot limit this reality with this certainly
With novel interest field, therefore equivalent variations made according to the claim of the utility model, still belong to the utility model and is covered
Range.
Claims (6)
1. a kind of solid oxide fuel cell high-temperature gas heat exchanger, which is characterized in that including：
Heat smoke entry/exit pipeline is used for heat smoke inlet and outlet heat exchanger；
Cold air/fuel gas entry/exit pipeline is used for cold air/fuel gas inlet and outlet heat exchanger；
Flue gas shunting plate is uniformly distributed for gas in heat smoke circulation road；
Cold air/fuel gas flow distribution plate is uniformly distributed for gas in cold air/fuel gas flow channel；
Gas partitions plate, for completely cutting off heat smoke and cold air/fuel gas；
Sealing strip, the external environment for completely cutting off heat smoke circulation road and cold air/fuel gas flow channel and heat exchanger；
The flue gas shunting plate, gas partitions plate and sealing strip form heat smoke circulation road；The cold air/fuel gas shunting
Plate, gas partitions plate and sealing strip form cold air/fuel gas flow channel；
The heat smoke circulation road and cold air/fuel gas flow channel form a structural unit, by the structural unit upper
Neat stack constitutes heat exchanger successively upwards for lower section, and the heat smoke circulation road and cold air/fuel gas flow channel are in upper and lower
It is alternately distributed upwards, is used for heat exchange.
2. solid oxide fuel cell high-temperature gas heat exchanger according to claim 1, it is characterised in that：The hot cigarette
By high temperature brazing or Laser Welding between gas entry/exit pipeline, cold air/fuel gas entry/exit pipeline, gas partitions plate, sealing strip
It connects in succession, the air-tightness for ensureing each interface.
3. solid oxide fuel cell high-temperature gas heat exchanger according to claim 1, it is characterised in that：The cold sky
Gas/fuel gas flow distribution plate is divided into two parts, respectively cold air inlet deflector and the main flow distribution plate of cold air, the cold air inlet water conservancy diversion
Plate is for ensureing gas even into the main flow distribution plate of the cold air.
4. solid oxide fuel cell high-temperature gas heat exchanger according to claim 1, it is characterised in that：The flue gas
The thickness of flow distribution plate and cold air/fuel gas flow distribution plate is slightly less than the sealing strip thickness, and the heat can be inserted for ensureing
In flue gas circulation road and cold air/fuel gas flow channel.
5. solid oxide fuel cell high-temperature gas heat exchanger according to claim 1, it is characterised in that：The flue gas
Flow distribution plate and cold air/fuel gas flow distribution plate can be processed into different shape by rolling or punch forming, for increasing gas stream
Dynamic distance, improves heat exchange efficiency.
6. solid oxide fuel cell high-temperature gas heat exchanger according to claim 1, it is characterised in that：The sealing
Item is divided into heat smoke sealing strip and cold air sealing strip, is welded between adjacent gas partitions plate, and distribute alternately, and is used for as institute
It states heat smoke circulation road and cold air/fuel gas flow channel provides independent air flow chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721746993.2U CN207611823U (en) | 2017-12-14 | 2017-12-14 | A kind of solid oxide fuel cell high-temperature gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721746993.2U CN207611823U (en) | 2017-12-14 | 2017-12-14 | A kind of solid oxide fuel cell high-temperature gas heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN207611823U true CN207611823U (en) | 2018-07-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946612A (en) * | 2017-12-14 | 2018-04-20 | 武汉华科福赛新能源有限责任公司 | A kind of solid oxide fuel cell high-temperature gas heat exchanger |
| CN114122443A (en) * | 2020-08-28 | 2022-03-01 | 未势能源科技有限公司 | Fuel cell and method for improving fuel cell |
-
2017
- 2017-12-14 CN CN201721746993.2U patent/CN207611823U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946612A (en) * | 2017-12-14 | 2018-04-20 | 武汉华科福赛新能源有限责任公司 | A kind of solid oxide fuel cell high-temperature gas heat exchanger |
| CN107946612B (en) * | 2017-12-14 | 2023-11-03 | 武汉华科福赛新能源有限责任公司 | High-temperature gas heat exchanger of solid oxide fuel cell |
| CN114122443A (en) * | 2020-08-28 | 2022-03-01 | 未势能源科技有限公司 | Fuel cell and method for improving fuel cell |
| CN114122443B (en) * | 2020-08-28 | 2024-03-22 | 未势能源科技有限公司 | Fuel cell and improved method for fuel cell |
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