JPH0375233A - Ceramic heat exchanger - Google Patents
Ceramic heat exchangerInfo
- Publication number
- JPH0375233A JPH0375233A JP17011089A JP17011089A JPH0375233A JP H0375233 A JPH0375233 A JP H0375233A JP 17011089 A JP17011089 A JP 17011089A JP 17011089 A JP17011089 A JP 17011089A JP H0375233 A JPH0375233 A JP H0375233A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- plate fins
- ceramics
- titanium pipes
- titanium
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 39
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000010936 titanium Substances 0.000 claims abstract description 38
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 38
- 238000005219 brazing Methods 0.000 claims abstract description 23
- 230000037431 insertion Effects 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 5
- 229910000679 solder Inorganic materials 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
- C03B37/0206—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices by contacting of the fibres with liquid or mist
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
- C03B37/0209—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices by means of a solid heat sink, e.g. cooling fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、セラミックス熱交換器に関し、特には、安価
で耐食性に優れたセラミックス熱交換器に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ceramic heat exchanger, and particularly to a ceramic heat exchanger that is inexpensive and has excellent corrosion resistance.
（従来の技術）
従来、セラミックス製のプレートフィンと金属管とを備
えたプレートフィン・チューブ型の風管とのろう付けを
確保するため、金！！Ｘ管の素材として耐食性が優れ、
セラミックスの熱膨張係数に近い熱膨張係数を有するも
のを採苗１シ六′金属管とセラミックス製のプレートフ
ィンとのろう付けはチタンを含有した銀ろうを用いなけ
ればならなかった。(Prior Art) Conventionally, gold! ! Excellent corrosion resistance as an X-tube material,
The seedlings had a thermal expansion coefficient close to that of ceramics, and silver solder containing titanium had to be used for brazing the metal tube and the ceramic plate fin.
（発明が解決しようとする課題）
しかし、上記従来技術において、金属管とセラミックス
で熱膨張係数が近似していても、金属管の耐力が大きい
場合には、ろう付け加熱時や冷却時にセラミックス製の
フィン及び金属管に働く応力は、金属管が塑性変形しに
くい為に緩和されず、フィンに割れが生じていた。それ
故、この場合、金属管の素材がいくら耐食性に優れたも
のであってもそれを使えないという問題を有していた。(Problem to be Solved by the Invention) However, in the above-mentioned conventional technology, even if the thermal expansion coefficients of the metal tube and ceramics are similar, if the metal tube has a large yield strength, it is difficult to use the ceramics during brazing heating or cooling. The stress acting on the fins and metal tubes could not be alleviated because the metal tubes are difficult to plastically deform, resulting in cracks in the fins. Therefore, in this case, there is a problem in that no matter how good the material of the metal tube is in corrosion resistance, it cannot be used.
また、チタン含有の銀ろうは非常に高価であるため、コ
スト的に不利であった。Further, since titanium-containing silver solder is very expensive, it is disadvantageous in terms of cost.
本発明は、上記の事情を考慮してなされたものであり、
安価でしかも耐食性に優れ、なおかつろう付け加熱時及
び冷却時にセラミックス製のフィンが破損することのな
いセラミックス熱交換器を提供することを目的とする。The present invention has been made in consideration of the above circumstances,
To provide a ceramic heat exchanger which is inexpensive and has excellent corrosion resistance, and whose ceramic fins are not damaged during brazing heating and cooling.
（課題を解決するための手段）
本発明は、上記の目的を達成するために、セラミックス
製のプレートフィンとチタン管とを備えたものにおいて
、チタン管と上記プレートフィンの挿入孔とのクリアラ
ンスを、ろう付け加熱時にチタン管が上記挿入孔に応力
を与えず密着するように設けると共に、上記プレートフ
ィンの厚さに対して充分に薄肉のチタン管とこのプレー
トフィンとをろう付けにより接合した構成としている。(Means for Solving the Problems) In order to achieve the above object, the present invention is provided with a plate fin made of ceramics and a titanium tube, in which the clearance between the titanium tube and the insertion hole of the plate fin is increased. , the titanium tube is provided so as to be in close contact with the insertion hole without applying stress during brazing heating, and the plate fin is joined to a titanium tube having a sufficiently thin wall relative to the thickness of the plate fin by brazing. It is said that
（実施例） 以下、本発明を園側に基づき具体的に説明する。(Example) Hereinafter, the present invention will be specifically explained based on the nursery school.
第１図は本発明の一実施例に係るセラミックス熱交換器
の要部の斜視図であり、第２図はその断面図である。こ
れらの図において、（１）は厚さ１朋のセラミックス製
のプレートフィンであり、以下セラミックスフィンと云
う。セラミックスフィンとしては例えばｓｉｅフィンが
ある。FIG. 1 is a perspective view of the main parts of a ceramic heat exchanger according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. In these figures, (1) is a ceramic plate fin having a thickness of 1 mm, and is hereinafter referred to as a ceramic fin. Examples of ceramic fins include sie fins.
（２）は厚さ０．４朋のチタン管である。チタン管（２
）゛の熱膨張係数はセラミックスに近い。チタン管（２
）とセラミックスフィン（１）の挿入孔とのクリアラン
スは、チタン管（２）がろう付け加熱されるときに膨張
してセラミックスフィン（１）の挿入孔（４）に応力を
加えることなく密着するように定めている。これはろう
付け加熱時のセラミックスフィン（１）の破損を防ぐた
めである。（３）は普通の銀ろう材である。チタン管の
ろう付けを行なうのであるから、銀ろう材中に必ずしも
チタンを含有する必要はない。(2) is a titanium tube with a thickness of 0.4 mm. Titanium tube (2
)'s thermal expansion coefficient is close to that of ceramics. Titanium tube (2
) and the insertion hole of the ceramic fin (1) is such that when the titanium tube (2) is brazed and heated, it expands and comes into close contact with the insertion hole (4) of the ceramic fin (1) without applying stress. It is defined as follows. This is to prevent damage to the ceramic fin (1) during brazing heating. (3) is ordinary silver brazing material. Since titanium tubes are brazed, it is not necessary to include titanium in the silver brazing material.
上記の構成において、チタン管（２）はセラミックスフ
ィンのフィン挿入孔に挿通され、ろう付け加熱時にフィ
ン挿入孔の内面に密着するように熱変形され、この密着
した状態で予め置きろうしたろう材（３）がセラミック
スフィン（１）とチタン管（２）の間に流れ込む。そし
て、冷却時にはチタン管（２）がろう材（３）から引つ
張りの熱変形力を受けて塑性変形するので、セラミック
スフィン（１）の破損が防止される。チタン管（２）を
セラミックスフィン（１）よりも薄肉としているのはチ
タ・ン管（２）の耐力を小さくして塑性変形し易くする
ためである。チタン管（２）の厚さは耐食性に支障のな
い程度でセラミックスフィンに対して充分に薄肉にする
ことが望ましい。また、チタン管（２）を使用すること
により、オールセラミックス製と同様の耐食性を得るこ
とができた。In the above configuration, the titanium tube (2) is inserted into the fin insertion hole of the ceramic fin, and is thermally deformed so as to come into close contact with the inner surface of the fin insertion hole during brazing heating. (3) flows between the ceramic fin (1) and the titanium tube (2). During cooling, the titanium tube (2) receives tensile thermal deformation force from the brazing filler metal (3) and undergoes plastic deformation, thereby preventing damage to the ceramic fin (1). The reason why the titanium tube (2) is made thinner than the ceramic fin (1) is to reduce the yield strength of the titanium tube (2) and make it easier to plastically deform. It is desirable that the thickness of the titanium tube (2) is sufficiently thin relative to the ceramic fins without affecting corrosion resistance. Moreover, by using the titanium tube (2), it was possible to obtain the same corrosion resistance as that made of all-ceramics.
（発明の効果）
以上のように、本発明によれば、銀ろうを介してセラミ
ックスと接合されるチタン管がセラミックス製のプレー
トフィンの厚さに対して充分に薄肉にすることにより、
ろう付け後の冷却時にろう材によってチタン管が引っ張
られて塑性変形し、セラミックス製のプレートフィンが
破損することを防止できる。また、チタン管とセラミッ
クス製のプレートフィンの挿入孔とのクリアランスを、
ろう付け加熱時にチタン管が上記挿入孔に応力を与えず
密着するように設けているからセラミックス製のプレー
トフィンの破損は防止できる。また、チタン管を使用す
ることにより、オールセラミックスと同様の優れた耐食
性を得る事ができ、漏水に対する信頼性を高めることが
できる。また、チタン管を使用することにより、ろう付
けを普通の銀ろうで行なうことができる。(Effects of the Invention) As described above, according to the present invention, by making the titanium tube that is joined to ceramics via silver solder sufficiently thinner than the thickness of the ceramic plate fin,
This prevents the titanium tube from being stretched and plastically deformed by the brazing material during cooling after brazing, thereby preventing damage to the ceramic plate fins. In addition, the clearance between the titanium tube and the insertion hole of the ceramic plate fin was
Since the titanium tube is provided so as to fit tightly into the insertion hole without applying stress during brazing heating, damage to the ceramic plate fin can be prevented. Furthermore, by using a titanium tube, it is possible to obtain excellent corrosion resistance similar to that of all-ceramics, and it is possible to improve reliability against water leakage. Furthermore, by using a titanium tube, brazing can be performed using ordinary silver solder.
第１ｒ！！ｆＩは本発明の一実施例に係るセラミックス
熱交換器の要部の斜視図であり、第２図はその断面図で
ある。
１・・・セラミックスフィン
２ ・
・チタン管
・ロウ材
・挿入孔1st r! ! fI is a perspective view of a main part of a ceramic heat exchanger according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. 1...Ceramic fin 2...Titanium tube, brazing material, insertion hole
Claims (1)
ものにおいて、チタン管と上記プレートフィンの挿入孔
とのクリアランスを、ろう付け加熱時にチタン管が上記
挿入孔に応力を与えず密着するように設けると共に、上
記プレートフィンの厚さに対して充分に薄肉のチタン管
とこのプレートフィンとをろう付けにより接合したこと
を特徴とするセラミックス熱交換器。In a device equipped with a ceramic plate fin and a titanium tube, a clearance is provided between the titanium tube and the insertion hole of the plate fin so that the titanium tube closely contacts the insertion hole without applying stress during brazing heating. , a ceramic heat exchanger characterized in that a titanium tube having a sufficiently thin wall relative to the thickness of the plate fin is joined to the plate fin by brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17011089A JPH0375233A (en) | 1989-06-30 | 1989-06-30 | Ceramic heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17011089A JPH0375233A (en) | 1989-06-30 | 1989-06-30 | Ceramic heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0375233A true JPH0375233A (en) | 1991-03-29 |
Family
ID=15898827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17011089A Pending JPH0375233A (en) | 1989-06-30 | 1989-06-30 | Ceramic heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0375233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10533769B2 (en) * | 2017-07-28 | 2020-01-14 | Viessmann Werke Gmbh & Co Kg | Heating device |
-
1989
- 1989-06-30 JP JP17011089A patent/JPH0375233A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10533769B2 (en) * | 2017-07-28 | 2020-01-14 | Viessmann Werke Gmbh & Co Kg | Heating device |
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