JP3422520B2 - Regenerative heat exchanger - Google Patents
Regenerative heat exchangerInfo
- Publication number
- JP3422520B2 JP3422520B2 JP13911293A JP13911293A JP3422520B2 JP 3422520 B2 JP3422520 B2 JP 3422520B2 JP 13911293 A JP13911293 A JP 13911293A JP 13911293 A JP13911293 A JP 13911293A JP 3422520 B2 JP3422520 B2 JP 3422520B2
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer element
- heat exchanger
- heat
- regenerative heat
- 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 - Fee Related
Links
- 230000001172 regenerating effect Effects 0.000 title claims description 15
- 239000000919 ceramic Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 4
- 238000005338 heat storage Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 29
- 239000010410 layer Substances 0.000 description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 230000035939 shock Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 102220008421 rs193922681 Human genes 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052644 β-spodumene Inorganic materials 0.000 description 1
Classifications
-
- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Air Supply (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、ボイラ用空気予熱器、
排煙脱流用ガスヒータ等として用いられる再生式熱交換
器に係る。BACKGROUND OF THE INVENTION The present invention relates to an air preheater for a boiler,
The present invention relates to a regenerative heat exchanger used as a flue gas degassing gas heater or the like.
【０００２】[0002]
【従来の技術】再生式熱交換器は、伝熱エレメントを蓄
熱体とし、該伝熱エレメントを一定時間毎に高温気体及
び低温気体と交互に接触させ、高温気体の熱によって低
温気体を加熱する装置である。2. Description of the Related Art In a regenerative heat exchanger, a heat transfer element is used as a heat storage element, and the heat transfer element is alternately contacted with a high temperature gas and a low temperature gas at regular intervals to heat the low temperature gas by the heat of the high temperature gas. It is a device.
【０００３】この様な再生式熱交換器の１例としてはボ
イラ用空気予熱器があり、その構造を図５を用いて簡単
に説明する。なお、図６は従来の伝熱エレメント集積バ
スケットを示す。An example of such a regenerative heat exchanger is a boiler air preheater, the structure of which will be briefly described with reference to FIG. Incidentally, FIG. 6 shows a conventional heat transfer element collecting basket.
【０００４】図５において、円筒状のロータ５は、蓄熱
体である伝熱エレメントの集積体を通常複数層（この例
では３層６ａ、６ｂ、６ｃ）内包しており、集合体は多
数の伝熱エレメント板62が集合してバスケット61内に収
容された構造を有する（図６）。このような伝熱エレメ
ント集積体は、軸受装置（図示されていない）により回
転可能に保持され、駆動装置（図示されていない）によ
り回転される。In FIG. 5, a cylindrical rotor 5 usually includes a plurality of layers (three layers 6a, 6b, 6c in this example) of an integrated body of heat transfer elements which are heat storage bodies, and a large number of aggregates. The heat transfer element plates 62 are assembled and housed in the basket 61 (FIG. 6). Such a heat transfer element assembly is rotatably held by a bearing device (not shown) and rotated by a drive device (not shown).
【０００５】伝熱エレメント集積体は、図５に示す例で
は、高温気体７の流れ方向に順に高温側伝熱エレメント
集積体層６ａ、中温側伝熱エレメント集積体層６ｂ及び
低温側伝熱エレメント集積体層６ｃと称される。In the example shown in FIG. 5, the heat transfer element integrated body has a high temperature side heat transfer element integrated layer 6a, an intermediate temperature side heat transfer element integrated layer 6b and a low temperature side heat transfer element in this order in the flow direction of the high temperature gas 7. It is called an integrated layer 6c.
【０００６】加熱気体である高温気体（たとえばボイラ
排ガス）７及び被加熱気体である低温気体（たとえば空
気）８は接続ダクト（図示されていない）により各々別
流路を形成しており、これら両気体はシール機構（図示
されていない）によって混合しないように流通される。A high temperature gas (for example, boiler exhaust gas) 7 that is a heating gas and a low temperature gas (for example, air) 8 that is a gas to be heated form separate flow paths by connection ducts (not shown). The gas is circulated by a sealing mechanism (not shown) so as not to mix.
【０００７】ロータ内の伝熱エレメントが高温気体７に
さらされると、該伝熱エレメントは高温気体により加熱
され、ついでロータの回転に伴い、低温気体８中に移動
し、ここで低温気体に対して熱を放出して低温気体８を
加熱する。その後、再びロータの回転に伴い、高温気体
７中に移動する。この操作を連続してくり返すことによ
り、高温気体７を冷却すると共に、低温気体８を加熱す
る。When the heat transfer element in the rotor is exposed to the high temperature gas 7, the heat transfer element is heated by the high temperature gas and then moves into the low temperature gas 8 as the rotor rotates. To release heat to heat the low temperature gas 8. Then, as the rotor rotates again, it moves into the high temperature gas 7. By repeating this operation continuously, the high temperature gas 7 is cooled and the low temperature gas 8 is heated.
【０００８】各伝熱エレメント集積体を構成し、バスケ
ット61に収容される伝熱エレメント板62は、通常高温側
用は軟鋼、低温側用は耐触鋼で形成される。又、まれに
低温側用としてエナメル被覆鋼が使用されることもあ
る。The heat transfer element plate 62, which constitutes each heat transfer element assembly and is housed in the basket 61, is usually formed of mild steel for the high temperature side and touch resistant steel for the low temperature side. In some rare cases, enamel coated steel is used for low temperature side.
【０００９】[0009]
【発明が解決しようとする課題】前記再生式熱交換器の
伝熱エレメントの材質として、軟鋼、耐触鋼を使用する
場合、特に低温側では酸による腐食環境下にあるため寿
命の問題が生じ、高温側では高温気体上流の燃焼設備
（たとえばボイラ等）の燃焼不良によって発生する未燃
物が伝熱エレメント上に付着することにより発生する火
災の問題が生じる。When mild steel or anti-corrosion steel is used as the material of the heat transfer element of the regenerative heat exchanger, there is a problem of life due to the corrosive environment due to acid, especially on the low temperature side. On the high temperature side, a problem of fire occurs due to unburned substances generated due to poor combustion of a combustion facility (for example, a boiler) upstream of the high temperature gas adheres to the heat transfer element.
【００１０】さらに、エナメル被覆鋼では、スーツブロ
ア等の機械的衝撃によりエナメル被覆層が損傷を受ける
ことによる寿命低下の問題と共に、上記火災の問題も生
ずる。Further, in the enamel-coated steel, there is a problem that the enamel coating layer is damaged by mechanical impact of a suit blower or the like to shorten the life, and the above-mentioned fire problem occurs.
【００１１】これらの課題を解決するために伝熱エレメ
ントの材質としてセラミックを採用することがある。こ
の場合、熱交換器の構造上生ずる周期的な温度振幅、あ
るいはスーツブロアによる熱衝撃に耐える必要があるこ
とから、コージェライト、βスポジュメン等の低熱膨張
セラミックを使用した例があるが、これらのセラミック
は結晶中のアルカリ成分が硫酸におかされ、損傷すると
いう欠点を有する。In order to solve these problems, ceramic is sometimes used as the material of the heat transfer element. In this case, since it is necessary to withstand the periodic temperature amplitude generated due to the structure of the heat exchanger or the thermal shock due to the suit blower, there are examples of using low thermal expansion ceramics such as cordierite and β-spodumene. Ceramics have the drawback that the alkaline components in the crystals are damaged by sulfuric acid.
【００１２】従って、耐酸性が良く、実用的な耐熱衝撃
性を有するセラミック材の開発及び伝熱エレメントの形
状の開発が必要である。Therefore, it is necessary to develop a ceramic material having a good acid resistance and a practical thermal shock resistance and a shape of a heat transfer element.
【００１３】[0013]
【課題を解決するための手段】本発明に係る再生式熱交
換器は、蓄熱体である伝熱エレメントが高温気体及び低
温気体と交互に熱交換する再生式熱交換器であり、伝熱
エレメントの集積体が気体流れ方向に対し２以上の層を
形成してなり、これら伝熱エレメントの集積体の２以上
の層の内、少なくとも１つの層の伝熱エレメントが、主
成分として重量百分率でSiO2 65〜85％、Al2O3 10〜30
％及びK2O及びNa2O計１〜５％を含有すると共に、結晶
相の主組成が石英又はクリストバライトであるセラミッ
クで構成されていることを特徴とする。A regenerative heat exchanger according to the present invention is a regenerative heat exchanger in which a heat transfer element that is a heat storage body exchanges heat with a high temperature gas and a low temperature gas alternately. Of two or more layers in the direction of gas flow, and at least one layer of the two or more layers of the stack of heat transfer elements has a weight percentage as a main component. SiO 2 65-85%, Al 2 O 3 10-30
% And K 2 O and Na 2 O in a total amount of 1 to 5%, and the main composition of the crystal phase is quartz or cristobalite ceramic.
【００１４】前記伝熱エレメント集積体は四角形又は台
形断面の多数のハニカムブロックで構成されており、前
記セラミック製伝熱エレメントは少なくとも100℃毎秒
の温度落差に耐える。The heat transfer element assembly is composed of a large number of honeycomb blocks having a square or trapezoidal cross section, and the ceramic heat transfer element withstands a temperature drop of at least 100 ° C./sec.
【００１５】[0015]
【作用】本発明において、セラミック製伝熱エレメント
は硫酸に強いSiO2を主成分とし、石英又はクリストバラ
イトを主結晶相とするため、耐食性が向上すると共に、
耐熱性も向上し、もって低温部では寿命延長に寄与し、
高温部では火災の危険性を消滅させる。In the present invention, since the ceramic heat transfer element has SiO 2 which is strong against sulfuric acid as a main component and quartz or cristobalite as a main crystal phase, the corrosion resistance is improved and
The heat resistance is also improved, which contributes to the extension of life in low temperature parts.
Extinguish fire hazards in hot areas.
【００１６】また、四角形の台形断面のハニカムブロッ
クで伝熱エレメント集積体が構成されているため、実用
的な伝熱効率を有しながら、製造・組立が容易な構造を
提供しうる。Further, since the heat transfer element assembly is composed of a honeycomb block having a quadrangular trapezoidal cross section, it is possible to provide a structure which has practical heat transfer efficiency and is easy to manufacture and assemble.
【００１７】さらに、実用的な耐熱衝撃性を有するため
スーツブロアを使用でき、付着灰による閉塞の危険性を
低下させる。Furthermore, since it has a practical thermal shock resistance, a suit blower can be used, and the risk of blockage due to adhered ash is reduced.
【００１８】従って、運転上あるいは防災上極めて安全
でかつ経済的な熱交換器を提供できる。Therefore, it is possible to provide an extremely safe and economical heat exchanger in terms of operation or disaster prevention.
【００１９】[0019]
【実施例】次に、本発明を実施例によってさらに説明す
る。EXAMPLES The present invention will be further described with reference to examples.
【００２０】図１は本発明に係る回転再生式熱交換器の
回転体部分を示している。なお、支持軸受装置、駆動装
置、接続ダクト、シール装置は図示されていない。FIG. 1 shows a rotor part of a rotary regeneration heat exchanger according to the present invention. The supporting bearing device, the drive device, the connecting duct, and the sealing device are not shown.
【００２１】回転体は円筒状のロータ１で構成されてお
り、このロータは複数層の伝熱エレメント集積体を内包
している。伝熱エレメント集積体は通常２〜４層で構成
されるが、この例では３層（２ａ、２ｂ、２ｃ）で構成
されている。このロータ１にはボイラからの排ガス３及
び加熱される空気４が互いに対向流状で流れ込んでお
り、この両者間をロータが回転することにより熱交換が
行われる。このため、図の上側は下側に比べ温度が高
く、上から高温層２ａ、中温層２ｂ、低温層２ｃと呼ば
れる。The rotating body is composed of a cylindrical rotor 1 which contains a plurality of layers of heat transfer element aggregates. The heat transfer element assembly is usually composed of 2 to 4 layers, but in this example, it is composed of 3 layers (2a, 2b, 2c). Exhaust gas 3 from the boiler and heated air 4 flow into the rotor 1 in counterflow with each other, and heat is exchanged by rotating the rotor between them. For this reason, the upper side of the figure has a higher temperature than the lower side, and is called the high temperature layer 2a, the intermediate temperature layer 2b, and the low temperature layer 2c from the top.
【００２２】図２は、本発明の１具体例に係るセラミッ
ク製伝熱エレメント集積バスケットを示しており、これ
を複数個並べることにより伝熱エレメント集積体層２
ａ、２ｂ、２ｃが形成される。本発明の１具体例によれ
ば、これら伝熱エレメント集積体層２ａ、２ｂ、２ｃ
は、いずれもセラミック製伝熱エレメント集積バスケッ
トにより構成される。セラミック製伝熱エレメント集積
バスケットは、バスケット21及びセラミック製伝熱エレ
メントブロック22ａ、22ｂにより構成されている。FIG. 2 shows a ceramic heat transfer element integrated basket according to one embodiment of the present invention.
a, 2b, 2c are formed. According to one embodiment of the invention, these heat transfer element integrated layers 2a, 2b, 2c.
Are all composed of a ceramic heat transfer element accumulating basket. The ceramic heat transfer element integrated basket is composed of a basket 21 and ceramic heat transfer element blocks 22a and 22b.
【００２３】図３は四角形断面のセラミック製伝熱エレ
メントブロック22ｂの拡大図であり、図４は台形断面の
セラミック製伝熱エレメントブロック22ａの拡大図であ
る。これら形状の伝熱エレメントブロックを適宜組み合
せて伝熱エレメント集積バスケットを形成する。FIG. 3 is an enlarged view of the ceramic heat transfer element block 22b having a square cross section, and FIG. 4 is an enlarged view of the ceramic heat transfer element block 22a having a trapezoidal cross section. The heat transfer element accumulation basket is formed by appropriately combining the heat transfer element blocks having these shapes.
【００２４】本発明によるセラミック製伝熱エレメント
ブロックは、石英、アルミナ、ムライト、長石、陶石、
粘度等を所定の割合に配合した原料に水を加えてハニカ
ム形状に押出し成形し、乾燥、焼成過程を経て製造され
る。The ceramic heat transfer element block according to the present invention includes quartz, alumina, mullite, feldspar, porcelain stone,
Water is added to a raw material having a viscosity and the like blended in a predetermined ratio, and the mixture is extruded into a honeycomb shape, dried, and fired to be manufactured.
【００２５】下記表１に示す化学組成を有する４種（セ
ラミック１−４）のセラミック製伝熱エレメントを調製
し、60％硫酸煮沸液中での96時間浸漬試験後に重量減量
率を測定した。その結果を表１に併せて示す。Four types of ceramic heat transfer elements (ceramics 1-4) having the chemical compositions shown in Table 1 below were prepared, and the weight loss rate was measured after a 96-hour immersion test in a 60% sulfuric acid boiling liquid. The results are also shown in Table 1.
【００２６】いずれのセラミックも良好な耐硫酸性を示
しているが、Al2O3の含有量が減少すれば重量減量率が
増加する傾向を示している。また、セラミック４は耐硫
酸性では良好な値を示すが、焼結性が悪く、難がある。Although all the ceramics have good sulfuric acid resistance, the weight loss rate tends to increase as the Al 2 O 3 content decreases. Further, although the ceramic 4 has a good sulfuric acid resistance value, it has a difficulty in sinterability.
【００２７】[0027]
【表１】
次に、上記セラミック製伝熱エレメントに加わる温度落
差を検討した。検討例では、排ガス入口温度390℃、空
気出口温度330℃、高温側の平均温度360℃、排ガス出口
温度180℃、空気入口温度80℃、低温側の平均温度130℃
である。ロータは回転数４rpm程度と非常にゆっくりと
回転するため、定常運転での温度落差は問題にならな
い。[Table 1] Next, the temperature drop applied to the ceramic heat transfer element was examined. In the study example, exhaust gas inlet temperature 390 ° C, air outlet temperature 330 ° C, high temperature side average temperature 360 ° C, exhaust gas outlet temperature 180 ° C, air inlet temperature 80 ° C, low temperature side average temperature 130 ° C
Is. Since the rotor rotates very slowly at a rotation speed of about 4 rpm, the temperature drop during steady operation does not matter.
【００２８】一方、スーツブロア（図示されていない）
が低温側に設置される場合、このスーツブロアによる温
度落差が問題となる。スーツブロア噴射媒体は空気又は
蒸気であるが、空気噴射の方がより厳しく、噴流による
伝熱エレメントの冷却速度を検討すると60℃／秒とな
る。しかしながら、本発明によるセラミック製伝熱エレ
メントは100℃／秒の冷却速度にも耐え、実用的な耐熱
衝撃性を有する。On the other hand, a suit blower (not shown)
When installed on the low temperature side, the temperature drop due to this suit blower becomes a problem. The soot blower injection medium is air or steam, but air injection is more severe, and when the cooling rate of the heat transfer element by the jet flow is considered, it becomes 60 ° C / sec. However, the ceramic heat transfer element according to the present invention can withstand a cooling rate of 100 ° C./sec and has practical thermal shock resistance.
【００２９】[0029]
【発明の効果】本発明により、充分な耐酸性及び耐熱性
を有し、実用的な耐熱衝撃性を有する伝熱エレメントが
得られるため、耐食性・耐久性に秀れ、火災が発生しに
くい再生式熱交換器が得られる。Industrial Applicability According to the present invention, a heat transfer element having sufficient acid resistance and heat resistance and practical thermal shock resistance can be obtained, so that it has excellent corrosion resistance and durability, and is a fire resistant fire regeneration. A heat exchanger is obtained.
【００３０】なお、本発明は、各種炉用の再生式熱交換
器、ガスタービン用再生式熱交換器にも適用される。The present invention is also applicable to regenerative heat exchangers for various furnaces and regenerative heat exchangers for gas turbines.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の再生式熱交換器回転体の好適な１具体
例の断面図である。FIG. 1 is a sectional view of a preferred example of a regenerative heat exchanger rotating body according to the present invention.
【図２】本発明に係る伝熱エレメント集積バスケットの
斜視図である。FIG. 2 is a perspective view of a heat transfer element accumulating basket according to the present invention.
【図３】本発明に係る四角形断面の伝熱エレメントブロ
ックの斜視図である。FIG. 3 is a perspective view of a heat transfer element block having a rectangular cross section according to the present invention.
【図４】本発明に係る台形断面の伝熱エレメントブロッ
クの斜視図である。FIG. 4 is a perspective view of a heat transfer element block having a trapezoidal cross section according to the present invention.
【図５】従来の再生式熱交換器回転体を示す断面図であ
る。FIG. 5 is a cross-sectional view showing a conventional regenerative heat exchanger rotating body.
【図６】従来の伝熱エレメント集積バスケットを示す斜
視図である。FIG. 6 is a perspective view showing a conventional heat transfer element collecting basket.
１、５ ロータ ２ａ、６ｂ 高温側伝熱エレメント集積体層 ２ｂ、６ｂ 中温側伝熱エレメント集積体層 ２ｃ、６ｃ 低温側伝熱エレメント集積体層 ３、７ 高温気体 ４、８ 低温気体 ２１、６１ バスケット ２２ａ、２２ｂ 伝熱エレメントブロック ６２ 伝熱エレメント板 One and five rotors 2a, 6b High temperature side heat transfer element integrated layer 2b, 6b Medium temperature side heat transfer element integrated layer 2c, 6c Low temperature side heat transfer element integrated layer 3,7 High temperature gas 4, 8 low temperature gas 21, 61 baskets 22a, 22b Heat transfer element block 62 Heat transfer element plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 角田 英雄 長崎県長崎市深堀町５丁目717番１号 三菱重工業株式会社 長崎研究所内 (72)発明者 深川 雅幸 長崎県長崎市深堀町５丁目717番１号 三菱重工業株式会社 長崎研究所内 (72)発明者 中村 利治 佐賀県西松浦郡有田町1288番地 岩尾磁 器工業株式会社内 (58)調査した分野(Int.Cl.7，ＤＢ名) F28D 19/04 C04B 35/18 C04B 35/14 F23L 15/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Tsunoda 5-717-1, Fukahori-cho, Nagasaki-shi, Nagasaki Nagasaki Research Laboratories, Mitsubishi Heavy Industries, Ltd. (72) Inventor Masayuki Fukagawa 5-717, Fukahori-cho, Nagasaki-shi, Nagasaki Prefecture No. 1 Mitsubishi Heavy Industries Ltd. Nagasaki Research Institute (72) Inventor Toshiharu Nakamura 1288 Arita-cho, Nishimatsuura-gun, Saga Iwao Porcelain Industry Co., Ltd. (58) Fields investigated (Int.Cl. 7 , DB name) F28D 19 / 04 C04B 35/18 C04B 35/14 F23L 15/02
Claims (2)
び低温気体と交互に熱交換する再生式熱交換器であっ
て、前記伝熱エレメントの集積体を気体流れ方向に対し
２以上の層を形成するよう設置してなる再生式熱交換器
において、前記２以上の層の少なくとも１つの層の伝熱
エレメントを、重量百分率でSiO2 65〜85％、Al2O3 10
〜30％及びK2O及びNa2O計１〜５％を含有すると共に、
結晶相の主組成が石英又はクリストバライトであるセラ
ミックで構成したことを特徴とする、再生式熱交換器。1. A regenerative heat exchanger in which a heat transfer element, which is a heat storage element, exchanges heat with a high temperature gas and a low temperature gas alternately. In the regenerative heat exchanger, the heat transfer elements of at least one layer of the two or more layers are SiO 2 65 to 85% by weight percentage, Al 2 O 3 10
Together contain 2 O in total 1-5% to 30% and K 2 O and Na,
A regenerative heat exchanger, characterized in that the main composition of the crystal phase is made of quartz or ceramics of cristobalite.
ック製の伝熱エレメント集積体が、四角形又は台形断面
の多数のハニカムブロックで構成されたものであること
を特徴とする、再生式熱交換器。2. The regenerative heat exchange system according to claim 1, wherein the ceramic heat transfer element assembly is composed of a large number of honeycomb blocks each having a rectangular or trapezoidal cross section. vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13911293A JP3422520B2 (en) | 1993-05-17 | 1993-05-17 | Regenerative heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13911293A JP3422520B2 (en) | 1993-05-17 | 1993-05-17 | Regenerative heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06323771A JPH06323771A (en) | 1994-11-25 |
| JP3422520B2 true JP3422520B2 (en) | 2003-06-30 |
Family
ID=15237773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13911293A Expired - Fee Related JP3422520B2 (en) | 1993-05-17 | 1993-05-17 | Regenerative heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3422520B2 (en) |
-
1993
- 1993-05-17 JP JP13911293A patent/JP3422520B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06323771A (en) | 1994-11-25 |
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