JPH08327263A - Heat storage type heat exchanger and heat resistant sliding body employed said heat exchanger and the like - Google Patents
Heat storage type heat exchanger and heat resistant sliding body employed said heat exchanger and the likeInfo
- Publication number
- JPH08327263A JPH08327263A JP7328172A JP32817295A JPH08327263A JP H08327263 A JPH08327263 A JP H08327263A JP 7328172 A JP7328172 A JP 7328172A JP 32817295 A JP32817295 A JP 32817295A JP H08327263 A JPH08327263 A JP H08327263A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat storage
- sliding
- heat exchanger
- temperature
- 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.)
- Granted
Links
- 238000005338 heat storage Methods 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000007787 solid Substances 0.000 claims abstract description 38
- 239000000314 lubricant Substances 0.000 claims abstract description 33
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 22
- 229910000428 cobalt oxide Inorganic materials 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 11
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 9
- 239000011147 inorganic material Substances 0.000 claims abstract description 9
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910002113 barium titanate Inorganic materials 0.000 claims abstract description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims abstract description 4
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims abstract description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract 2
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract 2
- 239000011248 coating agent Substances 0.000 claims description 26
- 238000000576 coating method Methods 0.000 claims description 26
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000007750 plasma spraying Methods 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000012784 inorganic fiber Substances 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000007767 slide coating Methods 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 13
- 238000011049 filling Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lubricants (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Sealing Devices (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガスタービン等に
使用される蓄熱式熱交換器のベアリングや空気シール
部、高温に曝される摺動部や合せ部、又は熱交換器本体
として機能する回転コアのシール部に使用される耐熱摺
動体、その製造方法及び該耐熱摺動体を組込んだ蓄熱式
熱交換器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention functions as a bearing, an air seal part, a sliding part and a mating part exposed to a high temperature, or a heat exchanger body of a heat storage type heat exchanger used in a gas turbine or the like. The present invention relates to a heat resistant slide used for a seal portion of a rotary core, a method for manufacturing the heat resistant slide, and a heat storage heat exchanger incorporating the heat resistant slide.
【０００２】[0002]
【従来の技術】例えばガスタービンや各種熱回収プラン
ト等においては、装置の熱効率を向上せしめる手段の１
つとして蓄熱式熱交換器が用いられている。この蓄熱式
熱交換器は、高温ガスによって加熱された回転可能な固
体（コア）を熱交換体として利用するものであって固体
を一定時間高温ガス中にさらして熱を吸収させて蓄熱し
た後に回転させて蓄熱面を移動し、次の一定時間蓄熱面
を低温ガスに接触せしめて固体に蓄えられた熱を低温ガ
ス中に放熱させることにより熱エネルギーを回収するも
のである。2. Description of the Related Art For example, in a gas turbine or various heat recovery plants, it is one of the means for improving the thermal efficiency of the apparatus.
As one of them, a heat storage type heat exchanger is used. This heat storage type heat exchanger uses a rotatable solid (core) heated by a high temperature gas as a heat exchanger, and after exposing the solid to the high temperature gas for a certain period of time to absorb the heat and store the heat. The heat energy is recovered by rotating and moving the heat storage surface, bringing the heat storage surface into contact with the low temperature gas for the next fixed time, and radiating the heat stored in the solid into the low temperature gas.
【０００３】前記蓄熱式熱交換器には、その代表的なも
のとして、ヒーティングエレメント側が回転するユング
ストローム型とケーシング側が回転するローテミューレ
型とがある。図１に、前記ローテミューレ型蓄熱式熱交
換器の構造の概要を示す。Typical examples of the heat storage type heat exchanger include a Jungstrom type in which the heating element side rotates and a low temule type in which the casing side rotates. FIG. 1 shows an outline of the structure of the rotemule heat storage type heat exchanger.
【０００４】図１において、１は多数の細孔がハニカム
状に形成されたドーナツ型のヒーティングエレメントで
あり、該ヒーティングエレメント１はハウジング１１に
固定されている。２はコンプレッサ（図示せず）からの
高圧低温空気が流過するＤ形断面形状の高圧低温空気ケ
ーシング、３は燃焼器（図示せず）への高圧高温空気が
流過するＤ形断面形状の高圧高温ケーシング、４はター
ビン（図示せず）からの低圧高温ガスが流過する低圧高
温ガス通路、８はコンプレッサ（図示せず）からの高圧
低温空気が流過する高圧低温空気通路である。In FIG. 1, reference numeral 1 denotes a donut type heating element having a large number of pores formed in a honeycomb shape, and the heating element 1 is fixed to a housing 11. 2 is a high-pressure low-temperature air casing having a D-shaped cross-section through which high-pressure low-temperature air from a compressor (not shown) flows, and 3 is a D-shaped cross-sectional shape through which high-pressure high-temperature air flows to a combustor (not shown) A high-pressure high-temperature casing, 4 is a low-pressure high-temperature gas passage through which low-pressure high-temperature gas from a turbine (not shown) flows, and 8 is a high-pressure low-temperature air passage through which high-pressure low-temperature air from a compressor (not shown) flows.
【０００５】そして高圧高温ケーシング３を流過する高
圧高温空気と、低圧高温ガス通路４を流過する低圧高温
ガスとは、ヒーティングエレメント１と高圧高温ケーシ
ング３との間で高温シール（耐熱摺動体）５によりシー
ルされ、また前記エレメント１と高圧低温ケーシング２
との間は低温シール（耐熱摺動体）６によりシールされ
ている。前記高圧低温ケーシング２は、これの外周に固
着されたリングギヤ２ａを電動モータ１２に直結された
ピニオン１３に噛合せしめることにより回転駆動され
る。The high-pressure high-temperature air flowing through the high-pressure high-temperature casing 3 and the low-pressure high-temperature gas flowing through the low-pressure high-temperature gas passage 4 have a high-temperature seal (heat-resistant slide) between the heating element 1 and the high-pressure high-temperature casing 3. And a high pressure low temperature casing 2
A low-temperature seal (heat-resistant sliding body) 6 is provided between and. The high-pressure low-temperature casing 2 is rotationally driven by engaging a ring gear 2a fixed to the outer periphery thereof with a pinion 13 directly connected to an electric motor 12.
【０００６】１４はトルク伝達シャフトであり、その一
端部（下端）が前記高圧低温ケーシング２の内周面に固
定され、他端部（上端）が高圧高温ケーシング３に固定
されている。これにより、高圧低温ケーシング２と高圧
高温ケーシング３とは前記トルク伝達シャフト１４を介
して同位相で回転せしめられる。更に前記トルク伝達シ
ャフト１４はヒーティングエレメント１の内周に形成さ
れた支持孔１ａ内を貫通せしめられ、上下のガイドベア
リング７を介してヒーティングエレメント１に支持され
ている。Reference numeral 14 denotes a torque transmission shaft, one end (lower end) of which is fixed to the inner peripheral surface of the high-pressure low-temperature casing 2 and the other end (upper end) of which is fixed to the high-pressure high-temperature casing 3. As a result, the high-pressure low-temperature casing 2 and the high-pressure high-temperature casing 3 are rotated in the same phase via the torque transmission shaft 14. Further, the torque transmission shaft 14 penetrates through a support hole 1a formed in the inner circumference of the heating element 1 and is supported by the heating element 1 via upper and lower guide bearings 7.
【０００７】尚、１６は排気通路、１７は燃焼器（図示
せず）に接続される高温空気通路である。Reference numeral 16 is an exhaust passage, and 17 is a high temperature air passage connected to a combustor (not shown).
【０００８】図２にヒーティングエレメント側が回転す
るユングストローム型蓄熱式熱交換器の概要を示す。図
において２１は多数のハニカム状細路が形成されたセラ
ミックス製ハニカム状エレメントを備えた円柱状の蓄熱
コアであり、該コア２１はこれの外周に固着されたリン
グギヤ２９を介して駆動源（ガスタービンのロータ軸
等）により回転軸Ｚ廻りに回転駆動せしめられる。FIG. 2 shows an outline of a Jungstrom type heat storage type heat exchanger in which the heating element side rotates. In the figure, reference numeral 21 denotes a cylindrical heat storage core provided with a ceramic honeycomb element in which a large number of honeycomb narrow paths are formed. The core 21 is driven by a drive source (gas It is driven to rotate about the rotation axis Z by a rotor shaft of the turbine or the like).
【０００９】２６は燃焼器（図示せず）への高圧低温の
空気が流通する高圧低温空気通路、２５はタービン（図
示せず）からの低圧高温のガスが流通する低圧高温ガス
通路であり、該高圧低温空気通路２６と低圧高温ガス通
路２５とはコア２１の上端面２１１ｂにおいてアウタシ
ール２３により、コア２１の下端面２１１ａにおいてイ
ンナシール２２により夫々シールされている。即ち前記
アウタシール２３の下面（摺動面）とコア２１の上端面
２１１ｂとが、インナシール２２の上面（摺動面）とコ
ア２１の下端面２１１ａとが夫々摺接されて両通路２
５，２６をシールされた状態でコア２１が回転せしめら
れる。Reference numeral 26 is a high-pressure low-temperature air passage through which high-pressure low-temperature air flows to a combustor (not shown), and 25 is a low-pressure high-temperature gas passage through which low-pressure high-temperature gas from a turbine (not shown) flows. The high-pressure low-temperature air passage 26 and the low-pressure high-temperature gas passage 25 are sealed by an outer seal 23 on the upper end surface 211b of the core 21 and an inner seal 22 on the lower end surface 211a of the core 21. That is, the lower surface (sliding surface) of the outer seal 23 and the upper end surface 211b of the core 21 are in slidable contact with each other, and the upper surface (sliding surface) of the inner seal 22 and the lower end surface 211a of the core 21 are in slidable contact with each other.
The core 21 is rotated with the seals 5 and 26.
【００１０】さて前記いずれの技術においても、高温シ
ール５、低温シール６、及びガイドベアリング７のブッ
シュ等の部位はいずれも１０００℃以上の高温に曝され
た中でエレメント１と摺接するので、高い耐熱性と耐摩
耗性を兼備した材料を用いることが要求されることか
ら、これに応える材料として、Ｎｉ（ニッケル）系耐熱
合金や希土類粒子分散強化耐熱金属の表面にＮｉＯ等の
酸化物を被覆したものが提供され、該被覆材料にて摺動
面を構成している。In any of the above techniques, the high temperature seal 5, the low temperature seal 6, and the bushing of the guide bearing 7 are all in contact with the element 1 while being exposed to a high temperature of 1000 ° C. or higher, which is high. Since it is required to use a material having both heat resistance and wear resistance, as a material that meets this requirement, Ni (nickel) -based heat-resistant alloy or rare earth particle dispersion-strengthened heat-resistant metal is coated with an oxide such as NiO. The coating material is used to form the sliding surface.
【００１１】[0011]
【発明が解決しようとする課題】さて前記前者の蓄熱式
熱交換器においては、高温シール５、低温シール６、等
のシール部材及びガイドベリング等の軸受部材は、前記
のように、１０００℃以上の高温雰囲気中で回転するケ
ーシング２、３またはシャフト１４に組み付けられ、ヒ
ーティングエレメント１の上下面１ｂ、１ｃと摺接する
ため、又後者の蓄熱式熱交換器においても、高圧低温空
気通路２６と低圧高温ガス通路２５とはコア２１の上端
面２１１ｂにおいてアウタシール２３により、コア２１
の下端面２１１ａにおいてインナシール２２により夫々
シールされているために、アウタシール２３及びインナ
シール２２の○印で示す高温のコア２１と摺接する部位
では、いずれも通常の耐熱摺動体に較べ格段に高い耐熱
性と耐摩耗性及び高温潤滑機能を併せ具えることが要求
される。In the former heat storage type heat exchanger, the sealing members such as the high temperature seal 5 and the low temperature seal 6 and the bearing members such as the guide belling are 1000 ° C. or higher as described above. Of the heating element 1 is slidably contacted with the upper and lower surfaces 1b and 1c of the heating element 1, and also in the latter heat storage type heat exchanger, the high pressure and low temperature air passage 26 is provided. The low-pressure high-temperature gas passage 25 is connected to the core 21 by the outer seal 23 on the upper end surface 211b of the core 21.
Since the inner seal 22 is sealed at the lower end surface 211a of each of them, the outer seal 23 and the inner seal 22 are much higher than the ordinary heat-resistant slide body at the portions in sliding contact with the high-temperature core 21 indicated by the circles. It is required to combine heat resistance, wear resistance, and high temperature lubrication function.
【００１２】しかしながら、従来使用されているＺｒＯ
2 等の耐熱材料からなるシール部材は、高温潤滑性が充
分でないため、ヒーティングエレメント１の摺動表面が
摩滅せしめられ、熱交換性能の低下を招く。また、従来
使用されている固体潤滑剤埋め込み型軸受（オイルレス
＃５００）材料は３００℃以上で酸化することから、摺
動面の焼付きが発生し易く、これによりケーシング２、
３の駆動が不可能になる。等の問題点を抱えている。However, the conventionally used ZrO
Since the seal member made of a heat-resistant material such as 2 does not have sufficient high temperature lubricity, the sliding surface of the heating element 1 is worn away, resulting in deterioration of heat exchange performance. In addition, since the conventional solid lubricant embedded bearing (oilless # 500) material is oxidized at 300 ° C. or higher, seizure of the sliding surface is likely to occur, which causes the casing 2,
3 becomes impossible to drive. There are problems such as.
【００１３】本発明の目的は、かかる技術的課題に鑑
み、１０００℃以上の高温下でも又常温でも高い強度を
有するとともに、相対運動する運動部材との摺接面にお
いて高い潤滑性と耐摩耗性と相手部材（運動部材）との
良好ななじみ性を備えた耐熱摺動体を提供することであ
る。In view of the above technical problems, an object of the present invention is to have high strength at a high temperature of 1000 ° C. or more and at a room temperature, and to have high lubricity and wear resistance on a sliding contact surface with a moving member that makes relative movement. The object is to provide a heat resistant slide having good compatibility with the mating member (moving member).
【００１４】[0014]
【課題を解決するための手段】本発明は、前記の課題、
特に常温下でも１０００℃程度の高温下でもいずれの温
度域でも固体潤滑機能を発揮することにより相手の運動
部材との間の摩擦係数を低下せしめることを主眼として
なされたものであって、次の特徴を具えている。The present invention provides the above-mentioned object,
In particular, the main purpose is to reduce the coefficient of friction between the moving member of the other party by exerting a solid lubrication function in any temperature range, either at room temperature or at a high temperature of about 1000 ° C. It has features.
【００１５】即ち、金属母材の表面に耐熱摺動被覆層が
形成された耐熱摺動体において、金属母材の表面に、Ｎ
ｉＯ若しくはＺｒＯ2（酸化ニッケル）中にＢａＴｉＯ3
（チタン酸バリウム）、ＣｏＯ（酸化コバルト）、Ｃａ
Ｆ2等の固体潤滑剤を選択して一又は複数含有させた材
料からなる被膜を形成した耐熱摺動体を提案する。That is, in a heat-resistant slide body having a heat-resistant sliding coating layer formed on the surface of a metal base material, N is formed on the surface of the metal base material.
BaTiO 3 in iO or ZrO 2 (nickel oxide)
(Barium titanate), CoO (Cobalt oxide), Ca
We propose a heat-resistant slide body in which a coating made of a material containing one or more solid lubricants such as F 2 is selected.
【００１６】この場合、耐摩耗性、耐剥離性、生産性の
面より前記固体潤滑剤の含有量が３〜２０％程度で好ま
しくは、前記被膜の厚さが０．１〜２．０ｍｍに形成す
るのがよい。そして耐熱摺動体は、好適には、ＮｉＯ若
しくはＺｒＯ2中にＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の
固体潤滑剤を含有させて粉末体を生成し、該粉末体をプ
ラズマ溶射、焼結等により母材の表面に接着せしめて被
膜を形成して構成されるものである。In this case, the content of the solid lubricant is preferably about 3 to 20% from the viewpoints of wear resistance, peeling resistance and productivity, and the thickness of the coating is preferably 0.1 to 2.0 mm. It is good to form. The heat-resistant slide body is preferably prepared by incorporating a solid lubricant such as BaTiO 3 , CoO, or CaF 2 into NiO or ZrO 2 to form a powder body, and subjecting the powder body to plasma spraying, sintering, or the like. It is constructed by adhering to the surface of a material to form a film.
【００１７】このような耐熱摺動体は、ガイドベアリン
グ及び高圧空気シール部に、ＮｉＯ若しくはＺｒＯ2中
にＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の固体潤滑剤を選
択して一又は複数含有させた材料からなる被膜を有する
摺動材を備えた蓄熱式熱交換器として適用するのが有効
であり、又一般に摺接面に、ＮｉＯ若しくはＺｒＯ2中
にＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の固体潤滑剤を選
択して一又は複数含有させた材料からなる被膜を形成し
た高温摺動部に適用する事も有効である。Such a heat-resistant sliding body is made of a material in which one or more solid lubricants such as BaTiO 3 , CoO, and CaF 2 are selected and contained in NiO or ZrO 2 for the guide bearing and the high-pressure air seal portion. It is effective to apply it as a heat storage heat exchanger equipped with a sliding material having the following coating. Generally, a solid lubricant such as BaTiO 3 , CoO or CaF 2 is added to NiO or ZrO 2 on the sliding contact surface. It is also effective to apply it to a high temperature sliding portion on which a coating film made of a material selected and contained one or more is formed.
【００１８】そしてさらに前記した高温摺動部の固体潤
滑剤はヒーティングエレメント側に設けるのが良く、こ
の場合、前記ユングストローム型蓄熱式熱交換器におい
ては高温ガスが熱伝播する蓄熱コア端面２１１ａのシー
ル摺動部材２２が摺接する部位に位置する、ハニカム状
細路内に無機材料、セメント、及び固体潤滑剤を混合し
てなる充填剤を充填するのが良い。Further, the solid lubricant of the high temperature sliding portion is preferably provided on the heating element side. In this case, in the Jungstrom type heat storage type heat exchanger, the heat storage core end surface 211a through which the high temperature gas propagates heat. It is preferable to fill the honeycomb narrow path, which is located at the position where the seal sliding member 22 is in sliding contact, with a filler formed by mixing an inorganic material, cement, and a solid lubricant.
【００１９】[0019]
【発明の実施の形態】本発明に係る耐熱摺動体の被膜を
形成するには、ＮｉＯ若しくはＺｒＯ2中にＢａＴｉＯ3
又は／及びＣｏＯ、ＣａＦ2等の固体潤滑剤を含浸せし
めた粉末体を生成する。この粉末体をプラズマ溶射等に
より、耐熱金属より成る摺動体の母材の表面に溶射し、
厚さ０．１〜２．０ｍｍ程度の被膜を形成する。このよ
うにして形成された被膜は、高い耐熱性を有するうえ
に、固体潤滑剤の含浸により摩擦係数が低下し、相手部
材とのなじみ性が良好で潤滑性に優れた表面硬化層とな
り、また、母材からの剥離の発生も無い。BEST MODE FOR CARRYING OUT THE INVENTION In order to form a film of a heat resistant slide according to the present invention, BaTiO 3 is added to NiO or ZrO 2.
Or / and a powder body impregnated with a solid lubricant such as CoO or CaF 2 is produced. This powder is sprayed onto the surface of the base material of the sliding body made of a heat resistant metal by plasma spraying or the like,
A film having a thickness of about 0.1 to 2.0 mm is formed. The coating film thus formed has high heat resistance, the friction coefficient is reduced by impregnation of the solid lubricant, and the surface hardened layer has good compatibility with the counterpart member and excellent lubricity. Also, there is no peeling from the base material.
【００２０】この場合、従来使用されているグラファイ
ト系摺動材では耐熱性が充分でなく、高温用摺動材とし
て適用されている。ＣａＦ2 系でも１０００℃以上の耐
熱性はない。ＺｒＯ2 等の耐熱材料からなる摺動材を適
用している例もあるが、潤滑性能が充分でなく、摺動材
自身の摩耗が多く、相手材を摩耗せしむる例も多い。本
発明は常温でも１０００℃以上の高温でも、潤滑特性が
優れ、耐熱性が高く、溶射又は、焼結体を接合した摺動
面が剥離することもない。尚、後記実施例ではＮｉＯ若
しくはＺｒＯ2中にＢａＴｉＯ3の固体潤滑剤を含浸せし
めたものでその効果を確認しているが、ＣｏＯもＢａＴ
ｉＯ3と類似特性を有するために同様な効果が得られる
ものと思慮する。In this case, the conventional graphite-based sliding material has insufficient heat resistance and is used as a high-temperature sliding material. Even CaF 2 system does not have heat resistance above 1000 ° C. In some cases, a sliding material made of a heat-resistant material such as ZrO 2 is used, but the lubricating performance is not sufficient, and the sliding material itself wears a lot, often causing the mating material to wear out. The present invention has excellent lubricating properties, high heat resistance, and neither thermal spraying nor peeling of the sliding surface to which the sintered body is bonded, either at room temperature or at a high temperature of 1000 ° C. or higher. In the examples described later, the effect was confirmed by impregnating NiO or ZrO 2 with a solid lubricant of BaTiO 3 , but CoO also has
It is considered that a similar effect can be obtained because it has similar characteristics to iO 3 .
【００２１】さて図２に示す回転蓄熱式熱交換器におい
ては、ハニカム状細路を有する円柱形蓄熱コア２１が回
転し、高温ガスと低温ガスの流れる流路を形成（仕切
る）するシール摺動部材とコア２１端面間の摩擦係数、
面圧の高さが駆動トルクに影響する。この為前記シール
摺動部材の、少なくとも高温側の蓄熱コア２１と摺接す
る高温摺動面側に前記した被膜を設けているが、蓄熱コ
ア２１はハニカム構造をしているために、受圧面積が小
さく面圧が大きい。In the rotary heat storage type heat exchanger shown in FIG. 2, a cylindrical heat storage core 21 having honeycomb narrow passages rotates to form a seal slide for forming (partitioning) a flow path through which a high temperature gas and a low temperature gas flow. Coefficient of friction between the member and the end surface of the core 21,
The height of the surface pressure affects the driving torque. For this reason, the above-mentioned coating is provided on at least the high temperature sliding surface side of the seal sliding member that is in sliding contact with the high temperature side heat storage core 21, but since the heat storage core 21 has a honeycomb structure, the pressure receiving area is Small and large surface pressure.
【００２２】そこで請求項７記載の発明においては、前
記蓄熱コア２１のシール摺動部材２２が摺接する、少な
くとも高温側コア２１摺動面部位２１ａに位置するハニ
カム状細路内に無機材料、セメント及び固体潤滑剤を混
合してなる充填剤３０を充填する。この結果前記のシー
ル摺動部材２２が摺接する蓄熱コア２１のハニカム状細
路内が充填面として機能している為に、摩擦係数と共に
面圧が低下し、駆動トルクの減少が図れる。又前記蓄熱
コア２１の充填面は、高圧ガス若しくは低圧ガスの流路
から外れた域に位置している為に、通過流路面積を何等
阻害する事はない。Therefore, in the invention as set forth in claim 7, the inorganic material and the cement are provided in the honeycomb narrow passages located at least at the high temperature side core 21 sliding surface portion 21a with which the seal sliding member 22 of the heat storage core 21 slides. And a filler 30 formed by mixing a solid lubricant. As a result, since the inside of the honeycomb-shaped narrow path of the heat storage core 21 with which the seal sliding member 22 is in sliding contact functions as a filling surface, the surface pressure decreases together with the friction coefficient, and the driving torque can be reduced. Further, since the filling surface of the heat storage core 21 is located outside the flow path of the high pressure gas or the low pressure gas, it does not hinder the passage area.
【００２３】この場合前記充填剤３０は、前記無機材料
が、蓄熱コア２１と同種のセラミック材料であり、固体
潤滑剤がＮｉＯ若しくはＺｒＯ2中にＢａＴｉＯ3 、Ｃ
ｏＯ、ＣａＦ2等の固体潤滑剤を選択して一又は複数含
有させた材料であり、又セメントが無機ファイバと無機
バインダを混合して形成したセメントであるのが好まし
い。即ち、無機材料に蓄熱コア２１と同種のセラミック
材料を用いることにより１０００℃以上の高温に加熱し
た場合の熱膨張率の差異に起因する蓄熱コア２１の破開
を防止でき、又無機ファイバと無機バインダを混合して
形成したセメントを用いることにより、１０００℃以上
の高温耐性を有する。In this case, in the filler 30, the inorganic material is the same ceramic material as the heat storage core 21, and the solid lubricant is BaTiO 3 , C in NiO or ZrO 2.
A material in which one or more solid lubricants such as oO and CaF 2 are selected and contained, and the cement is preferably a cement formed by mixing an inorganic fiber and an inorganic binder. That is, by using a ceramic material of the same kind as the heat storage core 21 for the inorganic material, it is possible to prevent the heat storage core 21 from rupturing due to the difference in the coefficient of thermal expansion when heated to a high temperature of 1000 ° C. or more, and to use the inorganic fiber and the inorganic fiber. By using the cement formed by mixing the binder, it has a high temperature resistance of 1000 ° C. or higher.
【００２４】[0024]
【実施例】以下、図１〜図４を参照して本発明の実施例
につき詳しく説明する。但し、この実施例に記載されて
いる構成部品の寸法、材質、形状、その相対位置などは
特に特定的な記載がない限りは、この発明の範囲をそれ
のみに限定する趣旨ではなく単なる説明例に過ぎない。
図３は図１に示すローテミューレ型熱交換器に使用され
る高温シール５（及び低温シール６）の断面図であり、
図において、５１はステンレス系耐熱鋼等の耐熱金属か
らなる母材であり、該母材５１はその背面を高圧高温ケ
ーシング３に強固に接着される。前記母材５１のヒーテ
ィングエレメント１への摺接面５２ａ側には本発明の要
旨である被膜５２が形成され、該被膜５２の表面が前記
エレメント１との摺接面５２ａとなっている。Embodiments of the present invention will be described in detail below with reference to FIGS. However, the dimensions, materials, shapes, relative positions, etc., of the components described in this embodiment are not intended to limit the scope of the present invention thereto, unless there is a specific description, and are merely illustrative examples. Nothing more than.
FIG. 3 is a cross-sectional view of the high-temperature seal 5 (and the low-temperature seal 6) used in the rotemuhle type heat exchanger shown in FIG.
In the figure, 51 is a base material made of a heat-resistant metal such as stainless heat-resistant steel, and the back surface of the base material 51 is firmly bonded to the high-pressure high-temperature casing 3. A coating 52, which is the gist of the present invention, is formed on the sliding contact surface 52a side of the base material 51 with respect to the heating element 1, and the surface of the coating 52 serves as the sliding contact surface 52a with the element 1.
【００２５】次に前記被膜５２の構成及び形成方法につ
いて説明する。 （１）ＮｉＯ若しくはＺｒＯ2（酸化ニッケル）に固体
潤滑剤であるＢａＴｉＯ3を好ましくは重量比で５〜２
０％含浸せしめて潤滑性が向上した粉末を生成する。 （２）前記ＢａＴｉＯ3 含浸ＮｉＯを公知のプラズマ溶
射により、母材５１上に吹き付け、母材５１の表面に被
膜５２を形成する。該被膜５２の厚さは０．５ｍｍ〜２
ｍｍが適切である。 尚、プラズマ溶射は、ノズル中に内包した電極と母材間
にプラズマアーク電圧を印加した状態で、前記ノズルよ
り高融点の金属やセラミック粉末を噴射する事により、
前記粉末がプラズマアークに溶融しながら母材表面に被
覆固着するものである。Next, the structure and method of forming the coating film 52 will be described. (1) NiTiO or ZrO 2 (nickel oxide) and BaTiO 3 as a solid lubricant, preferably in a weight ratio of 5 to 2
Impregnation with 0% produces a powder with improved lubricity. (2) The BaTiO 3 -impregnated NiO is sprayed onto the base material 51 by known plasma spraying to form a coating film 52 on the surface of the base material 51. The thickness of the coating 52 is 0.5 mm to 2
mm is suitable. Plasma spraying is performed by injecting a metal or ceramic powder having a high melting point from the nozzle in a state where a plasma arc voltage is applied between the electrode contained in the nozzle and the base material,
The powder adheres to the surface of the base material while being melted in the plasma arc.
【００２６】これにより、図４に示されるような、Ｎｉ
Ｏ素地の中に固体潤滑剤であるＢａＴｉＯ3 が含浸され
た被膜５２が形成される。この被膜５２は、１０００℃
〜１１００℃程度の高温における強度及び硬度が大きな
酸化ニッケル（ＮｉＯ）中に３〜２０％程度のＢａＴｉ
Ｏ3 が均等に分布せしめられたことにより、１１００℃
の高温中における摩擦係数が従来のものよりも大幅に低
減される。また溶射により被覆させた被膜５２は、剥離
を起こすことなく、強固に母材５１に固着される。尚、
前記固体潤滑剤としてＣｏＯ（酸化コバルト）を用いて
もよい。As a result, as shown in FIG.
A coating 52 impregnated with BaTiO 3 which is a solid lubricant is formed in the O matrix. This coating 52 is 1000 ° C.
BaTi of about 3 to 20% in nickel oxide (NiO) having high strength and hardness at a high temperature of about 1100 ° C
O 3 was evenly distributed, resulting in 1100 ° C
The friction coefficient at high temperature is significantly reduced compared to the conventional one. Further, the coating film 52 coated by thermal spraying is firmly fixed to the base material 51 without peeling. still,
CoO (cobalt oxide) may be used as the solid lubricant.
【００２７】図５に、摺動材として適用した場合の耐熱
性と潤滑性の評価結果を示す。本図に示す通り、耐熱性
と潤滑性のいずれも本材料が従来材に比して格段に優れ
た効果を有することがわかる。FIG. 5 shows the evaluation results of heat resistance and lubricity when applied as a sliding material. As shown in this figure, it can be seen that the present material has remarkably excellent effects in both heat resistance and lubricity as compared with the conventional material.
【００２８】図６乃至図７は、前記図２の○印部分に請
求項６乃至８記載の発明を組込んだ実施例を示す。前記
したアウタシール２３若しくはインナシール２２は、Ｎ
ｉ（ニッケル）系耐熱合金や希土類粒子分散強化耐熱金
属で形成され、該シール２２、２３の蓄熱コア端面２１
１との摺動面上に、前記したＢａＴｉＯ3 含浸ＮｉＯを
公知のプラズマ溶射により吹き付け、シール２２、２３
表面に被膜５２を形成する。該被膜５２の厚さは前記と
同様に０．５ｍｍ〜２ｍｍが適切である。FIGS. 6 to 7 show an embodiment in which the inventions of claims 6 to 8 are incorporated in the circles in FIG. The outer seal 23 or the inner seal 22 described above is N
The heat storage core end face 21 of the seals 22 and 23 is made of an i (nickel) -based heat-resistant alloy or a rare-earth particle dispersion strengthened heat-resistant metal.
The above-mentioned BaTiO 3 -impregnated NiO was sprayed on the sliding surface with 1 by the known plasma spraying, and the seals 22, 23 were formed.
A coating 52 is formed on the surface. The thickness of the coating film 52 is preferably 0.5 mm to 2 mm as described above.
【００２９】一方図７に示すように、前記被膜５２と摺
接する、少なくとも高温側コア摺動面部位２１ａに位置
する、蓄熱コア端面２１１ａ側のハニカム状細路２１ｃ
内に無機材料、セメント及び固体潤滑剤を混合してなる
充填剤３０をリング帯状に充填する。この場合、前記固
体潤滑剤には、前記実施例と同様にＺｒＯ2中にＢａＴ
ｉＯ3を含有させたもの、又ＮｉＯ中にＢａＴｉＯ3、Ｃ
ｏＯ、ＣａＦ2等の固体潤滑剤を選択して一又は複数含
有させたものを用いる。又セメントには線径が２〜４μ
ｍ、長さが平均５０μｍの「Ａｌ2Ｏ3 ＋ＳｉＯ2」から
なる無機ファイバとＳｉＯ2系の無機バインダを用い
る。又無機材料には蓄熱コア２１の材料と同種のセラミ
ック材料を用いる。On the other hand, as shown in FIG. 7, the honeycomb narrow passage 21c on the side of the heat storage core end surface 211a, which is in sliding contact with the coating film 52 and is located at least on the high temperature side core sliding surface portion 21a.
A filler 30 made by mixing an inorganic material, cement and a solid lubricant is filled in a ring shape. In this case, the solid lubricant contained in the ZrO 2 was BaT in the same manner as in the above embodiment.
Those containing iO 3 , or BaTiO 3 , C in NiO
A solid lubricant such as oO or CaF 2 is selected and contained in one or more. Also, the wire diameter is 2 to 4μ for cement.
An inorganic fiber made of “Al 2 O 3 + SiO 2 ” having an average length of 50 μm and a SiO 2 inorganic binder is used. As the inorganic material, the same ceramic material as that of the heat storage core 21 is used.
【００３０】そして前記３種の材料を数〜数十μｍ程度
の粒度に粉状化した後、適宜の配合比で水と共に混練化
して充填剤３０を形成する。Then, the above three materials are pulverized to a particle size of several to several tens of μm and then kneaded with water at an appropriate mixing ratio to form a filler 30.
【００３１】そして前記コア端面２１１側の充填剤３０
の充填は、蓄熱コア２１の充填不要部分にテープを張っ
て充填深さが１０ｍｍ程度になるように、ハニカム状細
路２１ｃ内に圧入充填を行う。そして圧入充填後、充填
剤３０の完全乾燥温度まで加熱し、その後亀裂が生じな
い温度で徐冷を行う。前記乾燥温度はセメントの種類に
よって決る。The filler 30 on the core end surface 211 side
The filling is performed by press-fitting and filling the honeycomb-shaped narrow passages 21c so that a filling depth is about 10 mm by wrapping a tape on a portion of the heat storage core 21 which does not need to be filled. Then, after press-fitting and filling, the filler 30 is heated to a complete drying temperature, and then gradually cooled at a temperature at which no crack is generated. The drying temperature depends on the type of cement.
【００３２】尚、面圧低下を図る為に、低温側の蓄圧コ
ア２１の摺動面部位に位置する、蓄熱コア端面２１１ｂ
側のハニカム状細路２１ｃ内にも充填剤３０をリング帯
状に充填するのが良く、この場合、セメント、無機材料
は前記と同様であるが、前記固体潤滑剤には、Ｃｕ2中
にＣ、ＮａＦ、ＷＳ2等の固体潤滑剤を選択して一又は
複数含有させたものを用いるのがよい。In order to reduce the surface pressure, the heat storage core end surface 211b located at the sliding surface portion of the low temperature side pressure storage core 21.
It is preferable that the honeycomb-shaped narrow passage 21c on the side is also filled with the filler 30 in the form of a ring band. In this case, the cement and the inorganic material are the same as those described above, but the solid lubricant is C 2 in Cu 2. It is preferable to use a solid lubricant such as Na, NaF or WS 2 selected and contained in one or more.
【００３３】前記実施例により図２に示す回転蓄圧式熱
交換器を運転した所、動摩擦係数の大幅低減に起因して
駆動トルクの低減が図られると共に、漏れ防止にもつな
がった。When the rotary pressure-accumulation heat exchanger shown in FIG. 2 was operated by the above-mentioned embodiment, the driving torque was reduced due to the large reduction of the dynamic friction coefficient and the leakage was prevented.
【００３４】[0034]
【発明の効果】以上記載の如く本発明によれば、高温強
度及び高温下における耐摩耗性の大なるＮｉＯ若しくは
ＺｒＯ2中にＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の固体潤
滑剤を含浸してなる被膜を形成したので、蓄熱式熱交換
器等の当該部相手部材との間の摺動摩擦係数が低減せし
められて、従来のものに較べ潤滑性能が大幅に向上した
耐熱摺動体を得ることができる。As described above, according to the present invention, a solid lubricant such as BaTiO 3 , CoO or CaF 2 is impregnated into NiO or ZrO 2 which has high strength at high temperature and high wear resistance at high temperature. Since the coating is formed, the coefficient of sliding friction between the heat storage type heat exchanger and the corresponding member of the relevant part is reduced, and a heat-resistant sliding body having significantly improved lubrication performance compared to the conventional one can be obtained. .
【００３５】これにより、従来のもののような被膜層と
摺接する相手部材との間の摩擦係数の過大によるコーテ
ィング層の剥離の発生及びこれにつながる機器の破損の
発生が防止され、高温下における耐久性が大で信頼性の
大なる耐熱摺動体を得ることができる。As a result, it is possible to prevent the coating layer from being peeled off due to an excessive friction coefficient between the coating layer and the counterpart member which is in sliding contact with the other member, and to prevent the equipment from being damaged due to the friction coefficient. It is possible to obtain a heat-resistant sliding body that is highly reliable and highly reliable.
【００３６】特に請求項７から８記載の発明によれば前
記効果に加えて前記のシール摺動部材が摺接する蓄熱コ
ア２１のハニカム状細路内が充填面として機能している
為に、摩擦係数と共に面圧が低下し、駆動トルクの減少
が図れる。In particular, according to the invention described in claims 7 to 8, in addition to the above effect, the inside of the honeycomb-shaped narrow passage of the heat storage core 21 with which the seal sliding member is in sliding contact functions as a filling surface, so that friction is caused. The surface pressure decreases with the coefficient, and the driving torque can be reduced.
【図１】本発明の第１実施例に係る耐熱摺動体を使用し
たローテミューレ型熱交換器の概略断面図。FIG. 1 is a schematic cross-sectional view of a low temule heat exchanger using a heat resistant slide according to a first embodiment of the present invention.
【図２】ガスタービン用回転蓄熱式熱交換器の概略構造
図。FIG. 2 is a schematic structural diagram of a rotary heat storage type heat exchanger for a gas turbine.
【図３】図１の熱交換器の高温シール取付部近傍の断面
図。3 is a cross-sectional view of the vicinity of a high temperature seal mounting portion of the heat exchanger of FIG.
【図４】本発明の実施例に係る耐熱摺動体の被膜部分の
断面図。FIG. 4 is a sectional view of a coating portion of a heat resistant slide according to an embodiment of the present invention.
【図５】耐熱性と潤滑性の評価結果を示すグラフ図であ
る。FIG. 5 is a graph showing evaluation results of heat resistance and lubricity.
【図６】図２の○印部分に請求項６乃至８記載の発明を
組込んだ実施例を示す拡大図である。FIG. 6 is an enlarged view showing an embodiment in which the invention described in claims 6 to 8 is incorporated in the portion marked with ◯ in FIG.
【図７】図６のＡ−Ａ’線視矢図である。FIG. 7 is an arrow view taken along the line A-A ′ in FIG. 6.
１ ヒーティングエレメント ２ 高圧低温ケーシング ３ 高圧高温ケーシング ５ 高温シール ６ 低温シール ７ ガイドベアリング ５１ 高温シールの母材 ５２ 被膜 ５２ａ 摺接面 ２１ 蓄熱コア ２１ａ コア摺動面部位 ２１ｃ ハニカム状細路 ３０ 充填剤 ２２、２３ シール摺動部材（アウタシール２３及びイ
ンナシール２２）DESCRIPTION OF SYMBOLS 1 Heating element 2 High-pressure low-temperature casing 3 High-pressure high-temperature casing 5 High-temperature seal 6 Low-temperature seal 7 Guide bearing 51 High-temperature seal base material 52 Coating 52a Sliding contact surface 21 Heat storage core 21a Core sliding surface part 21c Honeycomb narrow path 30 Filler 22, 23 Seal sliding member (outer seal 23 and inner seal 22)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ２３Ｃ 30/00 Ｃ２３Ｃ 30/00 Ｃ // Ｃ１０Ｎ 10:04 10:08 10:16 30:08 40:02 50:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location C23C 30/00 C23C 30/00 C // C10N 10:04 10:08 10:16 30:08 40 : 02 50:00
Claims (8)
された耐熱摺動体において、 金属母材の表面に、ＮｉＯ（酸化ニッケル）若しくはＺ
ｒＯ2（酸化ジルコニア）中にＢａＴｉＯ3 （チタン酸
バリウム）、 ＣｏＯ（酸化コバルト）、 ＣａＦ2（フ
ッ化カルシュウム）等の固体潤滑剤を選択して一又は複
数含有させた材料からなる被膜を形成したことを特徴と
する耐熱摺動体。1. A heat resistant slide body having a heat resistant sliding coating layer formed on the surface of a metal base material, wherein NiO (nickel oxide) or Z is formed on the surface of the metal base material.
Form a coating film made of a material containing one or more solid lubricants such as BaTiO 3 (barium titanate), CoO (cobalt oxide), and CaF 2 (calcium fluoride) in rO 2 (zirconia oxide). A heat-resistant slide body characterized in that
度に設定された請求項１記載の耐熱摺動体。2. The heat resistant slide according to claim 1, wherein the content of the solid lubricant is set to about 3 to 20%.
形成された請求項１記載の耐熱摺動体。3. The heat resistant slide according to claim 1, wherein the coating film is formed to have a thickness of 0.1 to 2.0 mm.
された耐熱摺動体においてＮｉＯ若しくはＺｒＯ2中に
ＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の固体潤滑剤を含有
させて粉末体を生成し、該粉末体をプラズマ溶射、焼結
等により母材の表面に接着せしめて被膜を形成してなる
ことを特徴とする耐熱摺動体。4. A heat-resistant slide body having a heat-resistant slide coating layer formed on the surface of a metal base material, wherein a solid lubricant such as BaTiO 3 , CoO or CaF 2 is contained in NiO or ZrO 2 to produce a powder body. Then, the heat resistant slide body is characterized in that the powder body is adhered to the surface of the base material by plasma spraying, sintering or the like to form a coating film.
ｉＯ 若しくはＺｒＯ2中にＢａＴｉＯ3 、ＣｏＯ、Ｃａ
Ｆ2等の固体潤滑剤を選択して一又は複数含有させた材
料からなる被膜を有する摺動材を設けたことを特徴とす
る蓄熱式熱交換器。5. The air seal part having a high temperature sliding part is provided with N.
BaTiO 3 , CoO, Ca in io or ZrO 2
A heat storage heat exchanger characterized in that a sliding material having a coating film made of a material containing one or more solid lubricants such as F 2 is selected.
で回転し、軸方向にハニカム状細路を有する円柱形蓄熱
コアを具え、この蓄熱コアの端面に前記流路を形成する
シール摺動部材が摺接してなる回転蓄熱式熱交換器にお
いて、 前記シール摺動部材の内、高温ガスが熱伝播する蓄熱コ
ア端面と摺接する高温摺動面側に、ＮｉＯ若しくはＺｒ
Ｏ2中にＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の固体潤滑剤
を選択して一又は複数含有させた材料からなる被膜を設
けたことを特徴とする蓄熱式熱交換器。6. A seal slide comprising a cylindrical heat storage core that rotates facing a flow path of a hot gas and a low temperature gas and has a honeycomb narrow path in an axial direction, and that forms the flow path on an end face of the heat storage core. A rotary heat storage heat exchanger in which a moving member is in sliding contact with NiO or Zr on the high temperature sliding surface side in sliding contact with the end surface of the heat storage core through which high temperature gas propagates heat in the seal sliding member.
A heat storage heat exchanger characterized in that a coating film made of a material containing one or a plurality of solid lubricants such as BaTiO 3 , CoO, and CaF 2 selected in O 2 is provided.
で回転し、軸方向にハニカム状細路を有する円柱形蓄熱
コアを具え、この蓄熱コアの端面に前記流路を形成する
シール摺動部材が摺接してなる回転蓄熱式熱交換器にお
いて、 高温ガスが熱伝播する蓄熱コア端面のシール摺動部材が
摺接する部位に位置する、ハニカム状細路内に、無機材
料、セメント、及び固体潤滑剤を混合してなる充填剤を
充填してなることを特徴とする蓄熱式熱交換器。7. A seal slide comprising a cylindrical heat storage core that rotates facing a flow path of high-temperature gas and low-temperature gas and has honeycomb narrow passages in the axial direction, and forms the flow path on the end face of the heat storage core. In the heat storage type heat exchanger in which the moving members are in sliding contact with each other, the inorganic sliding material, cement, and A heat storage heat exchanger characterized by being filled with a filler made by mixing a solid lubricant.
ミック材料であり、固体潤滑剤がＮｉＯ若しくはＺｒＯ
2中にＢａＴｉＯ3 、ＣｏＯ、ＣａＦ2等の固体潤滑剤を
選択して一又は複数含有させた材料であり、又セメント
が無機ファイバと無機バインダを混合して形成したセメ
ントであることを特徴とする請求項７記載の蓄熱式熱交
換器。8. The inorganic material is a ceramic material of the same kind as the heat storage core, and the solid lubricant is NiO or ZrO.
2 is a material in which one or more solid lubricants such as BaTiO 3 , CoO, and CaF 2 are selected and contained, and the cement is a cement formed by mixing an inorganic fiber and an inorganic binder. The regenerative heat exchanger according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32817295A JP3303642B2 (en) | 1995-03-30 | 1995-11-22 | Heat storage type heat exchanger, heat-resistant sliding body used for the heat exchanger, etc. |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589895 | 1995-03-30 | ||
| JP7-95898 | 1995-03-30 | ||
| JP32817295A JP3303642B2 (en) | 1995-03-30 | 1995-11-22 | Heat storage type heat exchanger, heat-resistant sliding body used for the heat exchanger, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08327263A true JPH08327263A (en) | 1996-12-13 |
| JP3303642B2 JP3303642B2 (en) | 2002-07-22 |
Family
ID=26437063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32817295A Expired - Fee Related JP3303642B2 (en) | 1995-03-30 | 1995-11-22 | Heat storage type heat exchanger, heat-resistant sliding body used for the heat exchanger, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3303642B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107678A (en) * | 2001-02-28 | 2004-04-08 | Nippon Piston Ring Co Ltd | Wear-resistant sliding member |
| WO2004029329A1 (en) * | 2002-09-24 | 2004-04-08 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for coating sliding surface of high temperature member, and high temperature member and electrode for electric discharge surface treatment |
| JP2008095106A (en) * | 2006-10-16 | 2008-04-24 | General Electric Co <Ge> | High-temperature seal, and high-temperature sealing system |
| US7537809B2 (en) | 2002-10-09 | 2009-05-26 | Ihi Corporation | Rotating member and method for coating the same |
| CN104962110A (en) * | 2015-07-02 | 2015-10-07 | 齐鲁工业大学 | Nickel-boron-coating calcium fluoride composite powder, preparation and application thereof and self-lubricating ceramic cutter |
| US9284647B2 (en) | 2002-09-24 | 2016-03-15 | Mitsubishi Denki Kabushiki Kaisha | Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment |
| EP2825831B1 (en) | 2013-01-02 | 2016-10-12 | Bisson, Massimiliano | Support device for radiant tubes |
-
1995
- 1995-11-22 JP JP32817295A patent/JP3303642B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107678A (en) * | 2001-02-28 | 2004-04-08 | Nippon Piston Ring Co Ltd | Wear-resistant sliding member |
| WO2004029329A1 (en) * | 2002-09-24 | 2004-04-08 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for coating sliding surface of high temperature member, and high temperature member and electrode for electric discharge surface treatment |
| CN100360712C (en) * | 2002-09-24 | 2008-01-09 | 石川岛播磨重工业株式会社 | Method for coating sliding surface of high temperature member, and high temperature member and electrode for electric discharge surface treatment |
| US9187831B2 (en) | 2002-09-24 | 2015-11-17 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment |
| US9284647B2 (en) | 2002-09-24 | 2016-03-15 | Mitsubishi Denki Kabushiki Kaisha | Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment |
| US7537809B2 (en) | 2002-10-09 | 2009-05-26 | Ihi Corporation | Rotating member and method for coating the same |
| US7918460B2 (en) | 2002-10-09 | 2011-04-05 | Ihi Corporation | Rotating member and method for coating the same |
| JP2008095106A (en) * | 2006-10-16 | 2008-04-24 | General Electric Co <Ge> | High-temperature seal, and high-temperature sealing system |
| EP2825831B1 (en) | 2013-01-02 | 2016-10-12 | Bisson, Massimiliano | Support device for radiant tubes |
| EP2825831B2 (en) † | 2013-01-02 | 2023-03-08 | Bisson, Massimiliano | Support device for radiant tubes |
| CN104962110A (en) * | 2015-07-02 | 2015-10-07 | 齐鲁工业大学 | Nickel-boron-coating calcium fluoride composite powder, preparation and application thereof and self-lubricating ceramic cutter |
| CN104962110B (en) * | 2015-07-02 | 2017-05-03 | 齐鲁工业大学 | Nickel-boron-coating calcium fluoride composite powder, preparation and application thereof and self-lubricating ceramic cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3303642B2 (en) | 2002-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5356545A (en) | Curable dry film lubricant for titanium alloys | |
| EP2437906B1 (en) | Methods of forming solid lubricant coatings on substrates | |
| WO2007004770A1 (en) | Coating material having heat and abrasion resistance and low friction characteristics and coating method thereof | |
| JPH08327263A (en) | Heat storage type heat exchanger and heat resistant sliding body employed said heat exchanger and the like | |
| US20190195280A1 (en) | Method for coating a turbomachine part with a self-lubricating coating and part coated by said method | |
| US8047825B2 (en) | Fluoropolymer-containing films for use with positive-displacement fluid pumps | |
| EP0166940A2 (en) | Running-in coating for a turbomachine | |
| JP3571623B2 (en) | Sliding material | |
| JP2009058016A (en) | Sleeve for fluid bearing device, fluid bearing device equipped therewith, spindle motor, information record regeneration processing device, and manufacturing method of sleeve therefor | |
| JPH08121361A (en) | Screw rotor and screw type compressor and manufacture thereof | |
| Dellacorte | Tribological composition optimization of chromium-carbide-based solid lubricant coatings for foil gas bearings at temperatures to 650 C | |
| US4110512A (en) | Iron oxide material and members for dry lubricated systems including the method of preparation therefor | |
| JP2007205254A (en) | Scroll compressor and manufacturing method of shaft support part in scroll compressor | |
| JP2022522642A (en) | Honeycomb structure containing abradable material | |
| WO2001044533A1 (en) | Abradable coatings | |
| DE10221114C1 (en) | Seal maintaining gap dimensions under varying thermal stresses in turbo-machine, comprises joined assembly of hollow spheres | |
| JP2016065638A (en) | Sliding member and method of manufacturing the same | |
| JPH085275A (en) | Heat-resistant slider and manufacture thereof | |
| JPS6352081B2 (en) | ||
| JP4349719B2 (en) | Aluminum bronze sintered bearing material and manufacturing method thereof | |
| JP3567128B2 (en) | Lubricant for rotary kiln and lubrication method thereof | |
| JP3725942B2 (en) | Resin composition for sliding member and sliding member | |
| Sliney | A commentary on solid lubricants and wear resistant solids for use in extreme environments | |
| JP2000192960A (en) | Bearing device | |
| CN112746271B (en) | Laser cladding wide-temperature-range self-lubricating gear and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20020402 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080510 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090510 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100510 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |