JPS6253907B2 - - Google Patents
Info
- Publication number
- JPS6253907B2 JPS6253907B2 JP57120216A JP12021682A JPS6253907B2 JP S6253907 B2 JPS6253907 B2 JP S6253907B2 JP 57120216 A JP57120216 A JP 57120216A JP 12021682 A JP12021682 A JP 12021682A JP S6253907 B2 JPS6253907 B2 JP S6253907B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- flow rate
- air
- temperature
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 claims description 97
- 238000000034 method Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Description
【発明の詳細な説明】
本発明は、燃料電池供給ガス温度制御方法及び
装置、すなわち、燃料電池本体へ供給される空気
及び燃料等供給ガスの温度制御方法とその装置と
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for controlling the temperature of gas supplied to a fuel cell, ie, a method and apparatus for controlling the temperature of gas supplied to a fuel cell, such as air and fuel.
従来、この種の装置としては添付図面第１図に
示すようなものがあつた。すなわち、図において
符号１，３は各々燃料及び空気の流量を検出する
燃料及び空気流量検出装置例えば流量計、２，４
は、上記流量計１，３の検出値に基づいて演算し
調節される燃料及び空気の流量調節装置例えば流
量調節弁、５，７は燃料電池に入る燃料及び空気
の温度を検出する温度検出装置例えば温度セン
サ、６，８は温度センサ５，７の検出値に基づい
て燃料及び空気の温度を制御するためにスチーム
の流量を調節するスチーム流量調節装置例えばス
チーム流量調節弁、９，１０はスチームと燃料及
び空気との熱交換を行なう燃料及び空気熱交換
器、１１は燃料電池本体であつてその内部に燃料
極１１ａと空気極１１ｂとを備えている。 Conventionally, there has been a device of this type as shown in FIG. 1 of the accompanying drawings. That is, in the figure, reference numerals 1 and 3 indicate fuel and air flow rate detection devices for detecting the flow rates of fuel and air, respectively, such as flowmeters, 2 and 4.
1 is a fuel and air flow regulating device, such as a flow regulating valve, which is calculated and regulated based on the detected values of the flowmeters 1 and 3; 5 and 7 are temperature detecting devices that detect the temperature of the fuel and air entering the fuel cell; For example, a temperature sensor, 6 and 8 are steam flow rate control devices that adjust the flow rate of steam to control the temperature of fuel and air based on the detected values of temperature sensors 5 and 7, for example, steam flow rate control valves, and 9 and 10 are steam flow rate control valves; A fuel/air heat exchanger 11 for exchanging heat between the fuel and the air is a fuel cell main body, and the inside thereof is provided with a fuel electrode 11a and an air electrode 11b.
なお、燃料流量検出装置１と燃料流量調節装置
２とその間を結ぶ演算回路とによつて燃料流量制
御装置１２が構成され、また、空気流量検出装置
３と空気流量調節装置４とその間を結ぶ演算回路
とによつて、空気流量制御装置１３が構成されて
いる。 The fuel flow rate control device 12 is composed of the fuel flow rate detection device 1, the fuel flow rate adjustment device 2, and a calculation circuit connecting them, and the air flow rate detection device 3, the air flow rate adjustment device 4, and a calculation circuit connecting them. The air flow control device 13 is configured by the circuit.
従来装置はこのように構成されているが、次に
その作用を説明する。 The conventional device is constructed as described above, and its operation will be explained next.
まず、燃料は、燃料制御装置１２の燃料流量計
１によつてその流量を検出され、この検出値に基
づいて燃料流量調節弁２の開度を調節することに
より、燃料の流量を制御する。次いで、流量制御
された燃料は、温度センサ５によつて、燃料電池
１１直前の温度が検出され、この温度センサ５の
出力信号によつて、スチーム流量調節弁６の開度
を制御して、熱交換器９に流入するスチーム量を
調節している。このようにして供給されたスチー
ムは、熱交換器９を介して燃料と熱交換し、その
結果、燃料の温度を所定温度に上昇させる。燃料
は、上記のようなループによつて、温度制御され
た後、燃料電池本体１１の燃料極１１ａに供給さ
れる。 First, the flow rate of the fuel is detected by the fuel flow meter 1 of the fuel control device 12, and the flow rate of the fuel is controlled by adjusting the opening degree of the fuel flow control valve 2 based on this detected value. Next, the temperature of the fuel whose flow rate is controlled is detected by the temperature sensor 5 immediately before the fuel cell 11, and the opening degree of the steam flow rate control valve 6 is controlled based on the output signal of the temperature sensor 5. The amount of steam flowing into the heat exchanger 9 is regulated. The steam thus supplied exchanges heat with the fuel via the heat exchanger 9, thereby increasing the temperature of the fuel to a predetermined temperature. The temperature of the fuel is controlled by the loop as described above, and then the fuel is supplied to the fuel electrode 11a of the fuel cell main body 11.
一方、空気に関しても、燃料と同様の過程によ
つて、流量制御及び温度制御された後、燃料電池
本体１１の空気極１１ｂに供給される。 On the other hand, air is also supplied to the air electrode 11b of the fuel cell main body 11 after its flow rate and temperature are controlled in the same process as for fuel.
このように、従来の燃料及び空気の温度制御方
法は、燃料及び空気と熱交換するスチームを途中
において分割して燃料温度制御系と空気温度制御
系とに分けて送り、これによつて、燃料及び空気
の温度制御をそれぞれ別個に行なう方法を採つて
いた。 In this way, the conventional fuel and air temperature control method splits the steam that exchanges heat with the fuel and air and sends it separately to the fuel temperature control system and the air temperature control system. A method was adopted in which the temperature of the air and the air were controlled separately.
このように、従来のガス供給方法及び装置は構
成されているために、燃料及び空気を別個に温度
制御しなければならず、その制御手順も、また、
制御装置も複雑にならざるを得ないという欠点が
あつた。 As described above, conventional gas supply methods and devices are configured such that the temperature of fuel and air must be controlled separately, and the control procedure also requires
The drawback was that the control device had to be complicated.
本発明は、上記のような従来方法及び装置にお
ける欠点を除去して、簡単容易な制御手順によ
り、所定の動作温度条件を満足するような燃料電
池供給ガス温度制御方法及び装置を提供すること
を、その目的とするものである。 It is an object of the present invention to provide a fuel cell supply gas temperature control method and device that eliminates the drawbacks of the conventional methods and devices as described above and satisfies predetermined operating temperature conditions using simple and easy control procedures. , that is its purpose.
本発明は、この目的を達成するために、温度制
御方法としては、スチーム流量を制御することに
より、空気及び燃料の内いずれか一方を上記スチ
ームと熱交換して一次所定温度にする一次温度制
御工程と、上記一次温度制御工程で一次所定温度
にされた空気及び燃料の内上記いずれか一方とそ
の他方とを熱交換させることにより、燃料及び空
気をそれぞれ所定温度に制御する終期温度制御工
程とから成ることを特徴とし、また、この方法を
実現するための温度制御装置としては、空気及び
燃料流量検出装置と上記流量検出装置による検出
値に基づいて作動する空気及び燃料流量調節装置
とをそれぞれ有する空気流量制御装置及び燃料流
量制御装置、空気及び燃料の内いずれか一方の燃
料電池流入直前の温度を検出する温度検出装置と
これによつて検出された温度に基づいてスチーム
流量を調節するスチーム流量調節装置とを有する
スチーム流量制御装置、上記スチーム流量制御装
置により流量調節されたスチームと空気及び燃料
の内上記いずれか一方とを熱交換させて一次所定
温度にする一次熱交換器、並びに、上記一次熱交
換器により一次所定温度にされた空気及び燃料の
内上記いずれか一方とその他方とを熱交換させる
終期熱交換器を備えていることを特徴とするもの
である。 In order to achieve this object, the present invention provides a temperature control method that includes primary temperature control to bring either air or fuel to a predetermined temperature by exchanging heat with the steam by controlling the steam flow rate. and a final temperature control step of controlling the fuel and air to respective predetermined temperatures by exchanging heat between one of the air and fuel that has been brought to the primary predetermined temperature in the primary temperature control step and the other. The temperature control device for realizing this method includes an air and fuel flow rate detection device and an air and fuel flow rate adjustment device that operate based on the detected value by the flow rate detection device, respectively. An air flow rate control device and a fuel flow rate control device having an air flow rate control device, a temperature detection device that detects the temperature of either the air or the fuel just before it enters the fuel cell, and a steam rate that adjusts the steam flow rate based on the temperature detected by the temperature detection device. a steam flow rate control device having a flow rate adjustment device; a primary heat exchanger that exchanges heat between the steam whose flow rate is regulated by the steam flow rate control device and any one of air and fuel to a predetermined primary temperature; The present invention is characterized by comprising a final heat exchanger for exchanging heat between one of the air and fuel brought to a predetermined primary temperature by the primary heat exchanger and the other.
以下、本発明方法及び装置を、本発明方法実施
のための本発明装置の一実施例を示す添付図面第
２図に基づいて説明する。 Hereinafter, the method and apparatus of the present invention will be explained based on the accompanying drawing, FIG. 2, which shows an embodiment of the apparatus of the present invention for carrying out the method of the present invention.
図において、燃料及び空気流量検出装置例えば
流量計１，３、流量計１，３により開度が調節さ
れる燃料及び空気の流量調節装置例えば流量調節
弁２，４並びに、燃料極１１ａ、空気極１１ｂを
内蔵する燃料電池本体１１は、従来装置における
ものと同様のものである。 In the figure, a fuel and air flow rate detection device such as flowmeters 1 and 3, a fuel and air flow rate control device whose opening degree is adjusted by the flowmeters 1 and 3, such as flow rate control valves 2 and 4, a fuel electrode 11a, and an air electrode are shown. The fuel cell main body 11 containing the fuel cell 11b is the same as that in the conventional device.
また、符号２１は燃料電池本体１１に流入直前
の燃料及び空気の内いずれか一方、例えば、空気
の温度を検出する温度検出装置例えば温度セン
サ、２２は温度センサ２１によつて検出された検
出値に基づいて演算回路２３により、演算された
開度に制御されてスチーム流量を所望値に制御し
ているスチーム流量調節装置例えばスチーム流量
調節弁であつて温度センサ２１、スチーム流量調
節弁２２及び演算回路２３によりスチーム流量制
御装置２４を構成している。また、符号２５はス
チーム流量調節弁２２によつて調節された流量を
有するスチームと空気流量制御装置１３により流
量制御された空気とを熱交換させて空気の温度を
一次所定温度に上昇させる一次熱交換器、２６は
一次所定温度になされた空気と燃料流量制御装置
１２により流量制御された燃料とを熱交換させる
ことにより、空気及び燃料の温度を所望値すなわ
ち燃料電池本体１１に供給する際の適温に熱放出
及び熱吸収させるための終期熱交換器である。 Further, reference numeral 21 indicates a temperature detection device, such as a temperature sensor, which detects the temperature of one of the fuel and air immediately before flowing into the fuel cell main body 11, for example, air; and 22 indicates a detection value detected by the temperature sensor 21. A steam flow rate regulating device, such as a steam flow rate regulating valve, which controls the steam flow rate to a desired value by controlling the opening degree calculated by the computing circuit 23 based on the temperature sensor 21, the steam flow rate regulating valve 22, and the computation The circuit 23 constitutes a steam flow rate control device 24 . Further, reference numeral 25 denotes primary heat that causes heat exchange between steam having a flow rate adjusted by the steam flow rate control valve 22 and air whose flow rate is controlled by the air flow rate control device 13 to raise the temperature of the air to a primary predetermined temperature. The exchanger 26 exchanges heat between the air that has been brought to a primary predetermined temperature and the fuel whose flow rate is controlled by the fuel flow rate control device 12, thereby adjusting the temperature of the air and fuel to a desired value, that is, when supplying the fuel cell main body 11. This is a final heat exchanger for releasing and absorbing heat at an appropriate temperature.
本発明装置は上記のように構成されるが、次に
その作用について述べることにより本発明方法を
説明する。 The device of the present invention is constructed as described above, and the method of the present invention will be explained next by describing its operation.
空気はまず空気流量計３と空気流量調節弁４と
から成る空気流量制御装置１３によつて流量制御
される。また、空気は、燃料電池１１に流入直前
において、温度センサ２１により温度検出され、
この温度センサ２１による出力信号に基づいて、
一次及び終期熱交換器２５，２６における熱交換
を考慮して演算された開度にスチーム流量調節弁
２２を制御し、スチーム流量を調節する。このよ
うに流量調節されたスチームは、一次熱交換器２
５に導かれて、空気流量制御装置１３によつて流
量制御された空気と熱交換することにより、空気
の温度を、所定の最終温度より高い一次所定温度
にする。このように一次所定温度になつた空気は
終期熱交換器２６に導かれ、燃料流量制御装置１
２によつて流量制御された燃料と熱交換されるこ
とによつて、空気は熱放出し、また、燃料は熱吸
収して、空気、燃料共に所定の温度、すなわち、
燃料電池本体１１に供給するのに適当な温度にな
る。従つて、終期熱交換器２６より出た空気及び
燃料はそれぞれ燃料電池本体１１の空気極１１ｂ
及び燃料極１１ａに供給される。 First, the flow rate of the air is controlled by an air flow control device 13 comprising an air flow meter 3 and an air flow control valve 4. Further, the temperature of the air is detected by the temperature sensor 21 immediately before it flows into the fuel cell 11,
Based on the output signal from this temperature sensor 21,
The steam flow rate control valve 22 is controlled to an opening calculated in consideration of heat exchange in the primary and final heat exchangers 25 and 26, and the steam flow rate is adjusted. The steam whose flow rate is adjusted in this way is transferred to the primary heat exchanger 2.
5, the temperature of the air is brought to a primary predetermined temperature higher than the predetermined final temperature by exchanging heat with the air whose flow rate is controlled by the air flow rate control device 13. The air that has reached the primary predetermined temperature in this way is led to the final heat exchanger 26, and is then transferred to the fuel flow control device 1.
By exchanging heat with the fuel whose flow rate is controlled by 2, the air releases heat, and the fuel absorbs heat, so that both the air and the fuel reach a predetermined temperature, that is,
The temperature becomes suitable for supplying the fuel to the fuel cell main body 11. Therefore, the air and fuel coming out of the final stage heat exchanger 26 are respectively connected to the air electrode 11b of the fuel cell main body 11.
and is supplied to the fuel electrode 11a.
このように、本発明方法は、スチーム流量を、
燃料電池本体へ流入直前の空気温度を温度センサ
によつて検出し、これを演算回路によつてスチー
ム流量調節弁の開度を演算制御して所望流量と
し、これを所定流量を有する空気に熱交換して空
気温度を一次所定温度とする一次温度制御工程
と、この一次所定温度の空気と所定流量の燃料と
を熱交換して空気及び燃料を適正な所定温度にそ
れぞれする終期温度制御工程とから構成されてい
る。 In this way, the method of the present invention allows the steam flow rate to be
A temperature sensor detects the temperature of the air just before it flows into the fuel cell main body, and an arithmetic circuit calculates and controls the opening of the steam flow rate control valve to obtain a desired flow rate. A primary temperature control step in which the air at the primary predetermined temperature is exchanged with a predetermined flow rate of fuel, and a final temperature control step in which the air at the primary predetermined temperature and the fuel at a predetermined flow rate are exchanged to bring the air and fuel to appropriate predetermined temperatures, respectively. It consists of
なお、上記実施例では、一次温度制御工程にお
いて空気をスチームと熱交換させることにより、
空気を一次所定温度としたが、これに限るもので
はなく、燃料側をスチームと熱交換させて、燃料
を一次所定温度としてもよい。 In addition, in the above example, by exchanging heat with air and steam in the primary temperature control step,
Although the air is set to the primary predetermined temperature, the present invention is not limited to this, and the fuel may be brought to the primary predetermined temperature by exchanging heat with steam on the fuel side.
このように、従来方法及び装置では燃料及び空
気の両方を同時に温度制御することが必要であつ
たが、本発明方法及び装置によれば、空気及び燃
料の内いずれか一方のみを温度制御すればよく、
従つて、制御も簡単容易な手順によつてなし得る
という効果を有している。 As described above, in the conventional method and apparatus, it was necessary to control the temperature of both fuel and air at the same time, but according to the method and apparatus of the present invention, it is possible to control the temperature of only one of the air and fuel. often,
Therefore, it has the effect that control can be performed by simple and easy procedures.
第１図は従来の燃料電池供給ガス温度制御装置
の一例のブロツク系統図、第２図は本発明装置の
一実施例のブロツク系統図である。
図において、１，３…燃料及び空気流量検出装
置（燃料及び空気流量計）、２，４…燃料及び空
気流量調節装置（燃料及び空気流量調節弁）、
５，７，２１…温度検出装置（温度センサ）、
６，８，２２…スチーム流量調節装置（スチーム
流量調節弁）、１１…燃料電池本体、１２…燃料
流量制御装置、１３…空気流量制御装置、２４…
スチーム流量制御装置、２５…一次熱交換器、２
６…終期熱交換器。なお、各図中、同一符号は同
一又は相当部分を示す。
FIG. 1 is a block diagram of an example of a conventional fuel cell supply gas temperature control device, and FIG. 2 is a block diagram of an embodiment of the device of the present invention. In the figure, 1, 3... fuel and air flow rate detection device (fuel and air flow meter), 2, 4... fuel and air flow rate adjustment device (fuel and air flow rate control valve),
5, 7, 21...Temperature detection device (temperature sensor),
6, 8, 22... Steam flow control device (steam flow control valve), 11... Fuel cell main body, 12... Fuel flow control device, 13... Air flow control device, 24...
Steam flow control device, 25...primary heat exchanger, 2
6...Terminal heat exchanger. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
スチーム流量を制御することにより、空気及び燃
料の内いずれか一方を上記スチームと熱交換して
一次所定温度にする一次温度制御工程と、上記一
次温度制御工程で一次所定温度にされた空気及び
燃料の内上記いずれか一方とその他方とを熱交換
させることにより、燃料及び空気をそれぞれ所定
温度に制御する終期温度制御工程とから成ること
を特徴とする燃料電池供給ガス温度制御方法。 ２ 燃料電池供給ガスの温度制御装置において、
空気及び燃料流量検出装置と上記流量検出装置に
よる検出値に基づいて作動する空気及び燃料流量
調節装置とをそれぞれ有する空気流量制御装置及
び燃料流量制御装置、空気及び燃料の内いずれか
一方の燃料電池流入直前の温度を検出する温度検
出装置とこれによつて検出された温度に基づいて
スチーム流量を調節するスチーム流量調節装置と
を有するスチーム流量制御装置、上記スチーム流
量制御装置により流量調節されたスチームと空気
及び燃料の内上記いずれか一方とを熱交換させて
一次所定温度にする一次熱交換器、並びに、上記
一次熱交換器により一次所定温度にされた空気及
び燃料の内上記いずれか一方とその他方とを熱交
換させる終期熱交換器を備えていることを特徴と
する燃料電池供給ガス温度制御装置。 ３ スチーム流量制御装置において温度検出装置
により温度を検出する空気及び燃料の内いずれか
一方が、空気である特許請求の範囲第２項記載の
燃料電池供給ガス温度制御装置。[Claims] 1. In a method for controlling the temperature of fuel cell supply gas,
A primary temperature control step in which one of the air and fuel is brought to a predetermined primary temperature by exchanging heat with the steam by controlling the steam flow rate; and the air and fuel brought to the primary predetermined temperature in the primary temperature control step. A fuel cell supply gas temperature control method comprising: a final temperature control step of controlling the fuel and air to predetermined temperatures by exchanging heat between one of the above and the other. 2. In the temperature control device for fuel cell supply gas,
An air flow rate control device and a fuel flow rate control device each having an air and fuel flow rate detection device and an air and fuel flow rate adjustment device that operate based on the values detected by the flow rate detection device, and a fuel cell for either air or fuel. A steam flow rate control device having a temperature detection device that detects the temperature immediately before inflow and a steam flow rate adjustment device that adjusts the steam flow rate based on the temperature detected by the temperature detection device, and a steam flow rate adjusted by the steam flow rate control device. a primary heat exchanger that exchanges heat with either the air or the fuel to bring it to a predetermined primary temperature; A fuel cell supply gas temperature control device comprising a final heat exchanger for exchanging heat with the other device. 3. The fuel cell supply gas temperature control device according to claim 2, wherein either one of the air and the fuel whose temperature is detected by the temperature detection device in the steam flow rate control device is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57120216A JPS5912573A (en) | 1982-07-09 | 1982-07-09 | Supply gas temperature control method of fuel cell and its apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57120216A JPS5912573A (en) | 1982-07-09 | 1982-07-09 | Supply gas temperature control method of fuel cell and its apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5912573A JPS5912573A (en) | 1984-01-23 |
| JPS6253907B2 true JPS6253907B2 (en) | 1987-11-12 |
Family
ID=14780760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57120216A Granted JPS5912573A (en) | 1982-07-09 | 1982-07-09 | Supply gas temperature control method of fuel cell and its apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5912573A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5518705A (en) * | 1994-08-22 | 1996-05-21 | Ballard Power Systems Inc. | Method and apparatus for the two-stage selective oxidation of carbon monoxide in a hydrogen-containing gas mixture |
-
1982
- 1982-07-09 JP JP57120216A patent/JPS5912573A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5912573A (en) | 1984-01-23 |
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