JPH0129415Y2 - - Google Patents
Info
- Publication number
- JPH0129415Y2 JPH0129415Y2 JP12571284U JP12571284U JPH0129415Y2 JP H0129415 Y2 JPH0129415 Y2 JP H0129415Y2 JP 12571284 U JP12571284 U JP 12571284U JP 12571284 U JP12571284 U JP 12571284U JP H0129415 Y2 JPH0129415 Y2 JP H0129415Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner shell
- ventilation gap
- combustion chamber
- heat
- cooling air
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000009835 boiling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Air Supply (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、家庭用又は業務用として使用され
る瞬間ガス湯沸器などの湯沸器における燃焼室の
構造に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to the structure of a combustion chamber in a water heater such as an instantaneous gas water heater used for home or commercial use.
（従来の技術）
従来の技術としては、たとえば、第２図に示し
たように熱交換器８′への給水管９′を内胴１′の
外周面に沿つて巻きつけ、給水管９′内を流過す
る冷水で内胴１′の冷却を行う構造のものが一般
に使用されているが、この構造の燃焼室にあつて
は出湯停止にともなうバーナ消火後、すぐ再点火
して出湯した場合、内胴１′の加熱残熱でその外
周面に巻回した給水管９′内の水が加熱昇温され、
いわゆる、後沸き現象を惹起する。したがつて、
出湯初期（開栓時）にこの高温熱湯が出湯される
ため誤つて火傷する危険があつた。(Prior Art) As a conventional technique, for example, as shown in FIG. Generally, combustion chambers with a structure in which the inner shell 1' is cooled by cold water flowing through the chamber are used, but in the case of a combustion chamber with this structure, after the burner extinguishes due to the stoppage of hot water supply, it is immediately re-ignited and hot water is discharged. In this case, the water in the water supply pipe 9' wound around the outer circumferential surface of the inner shell 1' is heated and heated by the residual heat from the heating of the inner shell 1'.
This causes a so-called after-boiling phenomenon. Therefore,
Because this high-temperature hot water was dispensed at the beginning of the tap (when the tap was opened), there was a risk of accidental burns.
そこで、給水管９′の内胴１′への巻回を廃し、
第３図に示したように内胴１′の周壁の内面又は
外面に断熱材A′を貼着して内胴１′の断熱効果を
高めたものが提案されている。なお、第２図及び
第３図において７′はメインバーナ、１０′は出湯
管、１１′は外殻である。 Therefore, the winding of the water supply pipe 9' around the inner shell 1' was eliminated,
As shown in FIG. 3, it has been proposed that a heat insulating material A' is attached to the inner or outer surface of the peripheral wall of the inner shell 1' to enhance the heat insulation effect of the inner shell 1'. In addition, in FIGS. 2 and 3, 7' is a main burner, 10' is a tapping pipe, and 11' is an outer shell.
（考案が解決しようとする問題点）
第３図に示した従来のものは、内胴１′自体が
熱伝導のよい金属製であるため断熱効果は半減
し、後沸きを完全に防止することは不可能であ
る。そこで、この考案は内胴自体を耐熱性と通気
性をもつ断熱材で形成し、しかも、該内胴を送風
フアンからの冷却用低温空気で効果的に冷却する
ことにより内胴の過熱を未然に防止し、前記従来
の欠点を解消した湯沸器の燃焼室の構造を提供す
るものである。(Problems to be solved by the invention) In the conventional case shown in Fig. 3, the inner shell 1' itself is made of metal with good heat conduction, so the insulation effect is halved and after-boiling can be completely prevented. is not possible. Therefore, this idea prevents overheating of the inner shell by forming the inner shell itself with a heat-resistant and breathable insulating material, and effectively cooling the inner shell with low-temperature cooling air from a blower fan. The present invention provides a structure of a combustion chamber of a water heater that prevents the above-mentioned conventional drawbacks.
（問題点を解決するための手段）
この考案は、内胴１を耐熱性と通気性をもつ断
熱材で形成し、該内胴１の周囲を外胴２により通
気間隙３を存して密閉囲繞し、該通気間隙３に送
風フアンＦからの冷却用空気を導いたことを特徴
とする湯沸器の燃焼室の構造に係るものである。(Means for solving the problem) In this invention, the inner shell 1 is formed of a heat-resistant and breathable heat insulating material, and the periphery of the inner shell 1 is sealed by the outer shell 2 with a ventilation gap 3. This relates to the structure of a combustion chamber of a water heater, which is characterized by surrounding the ventilation gap 3 and guiding cooling air from a blower fan F into the ventilation gap 3.
（作用）
しかして、内胴１自体は断熱材だけで形成さ
れ、しかも、該内胴１は送風フアンＦからの冷却
用空気で強制的に冷却されるから従来のもののよ
うに加熱残熱による後沸き現象は生ぜず、また、
その耐久性も著しく向上するものである。(Function) Therefore, the inner shell 1 itself is formed only of a heat insulating material, and since the inner shell 1 is forcibly cooled with cooling air from the blower fan F, it is not affected by residual heat from heating as in the conventional case. No after-boiling phenomenon occurs, and
Its durability is also significantly improved.
（実施例）
以下この考案による湯沸器の燃焼室の構造の一
実施例を図面に基づいて詳細に説明する。(Example) An example of the structure of a combustion chamber of a water heater according to this invention will be described in detail below based on the drawings.
第１図において、１は燃焼室を構成する内胴
で、スポンジ状のセラミツクスのような耐熱性と
通気性をもつた強靭な断熱材で形成されている。
２は外胴で、内胴１の外周部に一定の間隔を存し
て配設され、内胴１を周囲に通気間隙３を存して
密閉囲繞せしめている。Ｆは冷却用空気を通気間
隙３へ強制的に送るための送風フアンで、通気間
隙３の下部一側に設置され、その吹出口４ａを送
風ダクト４を介して通気間隙３と接続せしめ、冷
却用空気が通気間隙３内へ強制的に送り込まれる
ようになつている。５は送風ダクト４から分岐し
た燃焼用二次空気供給管で、内胴１の下部に設け
たメインバーナ室６に接続され、送風フアンＦか
らの冷却用空気の一部をメインバーナ室６に送り
メインバーナ７の燃焼用二次空気に供するように
なしている。なお、図中８は内胴１の上部に設置
した熱交換器、９は熱交換器８への給水管、１０
は熱交換器８からの出湯管、１１は外殻、１２は
排気ダクトである。 In FIG. 1, reference numeral 1 denotes an inner shell constituting a combustion chamber, which is made of a strong heat insulating material with heat resistance and air permeability, such as sponge-like ceramics.
Reference numeral 2 denotes an outer shell, which is disposed at a constant interval on the outer periphery of the inner shell 1, and hermetically surrounds the inner shell 1 with a ventilation gap 3 surrounding it. F is a blowing fan for forcibly sending cooling air to the ventilation gap 3, which is installed at one side of the lower part of the ventilation gap 3, and whose blower outlet 4a is connected to the ventilation gap 3 via the ventilation duct 4, and the cooling air is Air is forced into the ventilation gap 3. Reference numeral 5 denotes a secondary combustion air supply pipe branched from the blower duct 4, which is connected to the main burner chamber 6 provided in the lower part of the inner shell 1, and which supplies part of the cooling air from the blower fan F to the main burner chamber 6. It is designed to serve as secondary air for combustion in the feed main burner 7. In addition, in the figure, 8 is a heat exchanger installed on the upper part of the inner shell 1, 9 is a water supply pipe to the heat exchanger 8, and 10
1 is an outlet pipe from the heat exchanger 8, 11 is an outer shell, and 12 is an exhaust duct.
上記構成において、送風フアンＦからの冷却用
空気は送風ダクト４から密閉状の通気間隙３に入
り、内胴１の周壁を斜め上方に向けて透過し内胴
１内、すなわち、燃焼室内へ吐出され、燃焼排気
とともに排気ダクト１２から器外へ放出されるも
のである。しかして、内胴１が耐熱性と通気性を
もつ断熱材で形成されているから内胴１自体が著
しい断熱効果を発揮し、さらに、冷却用空気で内
胴１全体を包み、しかも、冷却用空気が内胴１の
周壁を透過して内胴１を効果的に冷却するもので
ある。 In the above configuration, the cooling air from the blower fan F enters the airtight ventilation gap 3 from the blower duct 4, passes through the peripheral wall of the inner shell 1 obliquely upward, and is discharged into the inner shell 1, that is, into the combustion chamber. The combustion exhaust gas is discharged from the exhaust duct 12 to the outside of the vessel together with the combustion exhaust gas. Since the inner shell 1 is made of a heat-resistant and breathable heat insulating material, the inner shell 1 itself exhibits a remarkable heat insulating effect.Furthermore, the inner shell 1 is entirely wrapped in cooling air, and the cooling The air permeates through the peripheral wall of the inner shell 1 to effectively cool the inner shell 1.
（考案の効果）
この考案は以上説明したように、内胴の過熱が
完全に防止されるため湯沸器の隘路となつている
後沸き現象は解消され、また、内胴自体がスポン
ジ状のセラミツクスなどのような耐熱性と通気性
をもつ断熱材で形成されているから耐久性にもす
ぐれている。(Effects of the invention) As explained above, this invention completely prevents the inner shell from overheating, eliminating the after-boiling phenomenon that is a bottleneck in water heaters. It is made of a heat-resistant and breathable insulating material such as ceramics, so it is extremely durable.
第１図はこの考案の一実施例を示した断面図、
第２図及び第３図は従来例の概略構成図である。
１…内胴、２…外胴、３…通気間隙、Ｆ…送風
フアン。
FIG. 1 is a sectional view showing an embodiment of this invention.
FIGS. 2 and 3 are schematic configuration diagrams of a conventional example. 1...Inner shell, 2...Outer shell, 3...Ventilation gap, F...Blower fan.
Claims (1)
し、該内胴１の周囲を外胴２により通気間隙３
を存して密閉囲繞し、該通気間隙３に送風フア
ンＦからの冷却用空気を導いたことを特徴とす
る湯沸器の燃焼室の構造。 内胴１をスポンジ状セラミツクスで形成した
実用新案登録請求の範囲第１項記載の湯沸器の
燃焼室の構造。[Claims for Utility Model Registration] The inner shell 1 is formed of a heat-resistant and breathable heat insulating material, and the inner shell 1 is surrounded by an outer shell 2 with a ventilation gap 3.
A structure of a combustion chamber of a water heater, characterized in that the combustion chamber is hermetically surrounded by a ventilation gap 3, and cooling air from a blower fan F is guided into the ventilation gap 3. The structure of a combustion chamber of a water heater according to claim 1, wherein the inner shell 1 is made of sponge-like ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12571284U JPS6143648U (en) | 1984-08-17 | 1984-08-17 | Structure of the combustion chamber of a water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12571284U JPS6143648U (en) | 1984-08-17 | 1984-08-17 | Structure of the combustion chamber of a water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6143648U JPS6143648U (en) | 1986-03-22 |
| JPH0129415Y2 true JPH0129415Y2 (en) | 1989-09-07 |
Family
ID=30684405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12571284U Granted JPS6143648U (en) | 1984-08-17 | 1984-08-17 | Structure of the combustion chamber of a water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6143648U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2576736B2 (en) * | 1992-02-28 | 1997-01-29 | 株式会社日立製作所 | Vehicle connection structure |
-
1984
- 1984-08-17 JP JP12571284U patent/JPS6143648U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6143648U (en) | 1986-03-22 |
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