JPH0225074Y2 - - Google Patents
Info
- Publication number
- JPH0225074Y2 JPH0225074Y2 JP10783784U JP10783784U JPH0225074Y2 JP H0225074 Y2 JPH0225074 Y2 JP H0225074Y2 JP 10783784 U JP10783784 U JP 10783784U JP 10783784 U JP10783784 U JP 10783784U JP H0225074 Y2 JPH0225074 Y2 JP H0225074Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner shell
- pleats
- ventilation
- combustion chamber
- water heater
- 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 20
- 238000009423 ventilation Methods 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、瞬間ガス湯沸器等の湯沸器におけ
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.
従来の湯沸器における燃焼室の構造としては、
第4図に示したように熱交換器11′への給水管
12′を内胴1′の外周面に沿つて巻きつけ、給水
管12′内を流過する水で内胴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
燃焼室にあつては湯沸し消火後に直ぐ再点火した
場合内胴の加熱残熱で巻回した給水管12′内の
水が昇温し、いわゆる、後沸き現象を惹起する。
したがつて、開栓時にこの高温湯が出湯されるの
で誤つて火傷するおそれがあつた。そこで、給水
管12′の内胴外周への巻回を廃し、第5図に示
したように内胴1′の周壁内面又は外面に断熱材
14′を貼着したものが提案されているが、耐久
性に問題があり、かつ、後沸き現象の防止に対し
ても十分ではない。なお、第4図及び第5図にお
いて4′はケーシング、10′はメインバーナ、1
3′は出湯管である。
The structure of the combustion chamber in a conventional water heater is as follows:
As shown in FIG. 4, the water supply pipe 12' to the heat exchanger 11' is wrapped around the outer peripheral surface of the inner shell 1', and the water flowing through the water supply pipe 12' cools the inner shell 1'. However, in the case of a combustion chamber with this structure, if the fire is re-ignited immediately after being extinguished by boiling water, the water in the wound water supply pipe 12' will rise in temperature due to the residual heat from heating in the inner shell. This causes the so-called after-boiling phenomenon.
Therefore, when the tap is opened, this high-temperature water is discharged and there is a risk of accidental burns. Therefore, it has been proposed to eliminate the winding of the water supply pipe 12' around the outer circumference of the inner shell, and to attach a heat insulating material 14' to the inner or outer surface of the peripheral wall of the inner shell 1', as shown in FIG. However, there is a problem in durability, and it is not sufficient to prevent the after-boiling phenomenon. In addition, in Figures 4 and 5, 4' is the casing, 10' is the main burner, and 1
3' is a hot water outlet pipe.
この考案は、内胴を強制フアンからの冷却用空
気により効率よく常時冷却することで後沸き現象
を効果的に防ぐなど、前記従来の諸欠点を解消し
た湯沸器の燃焼室の構造を提供するものである。
This invention provides a combustion chamber structure for a water heater that eliminates the above-mentioned conventional drawbacks, such as effectively preventing the after-boiling phenomenon by constantly and efficiently cooling the inner shell with cooling air from a forced fan. It is something to do.
その構成は、内胴1の周壁に複数条の段状ひだ
2を形成し、該ひだ2に強制フアンFからの冷却
用空気を導入する通気孔3を穿設するとともに、
内胴の周囲をメインバーナへの連通孔8を備えた
通気間隙5で密閉囲繞して強制フアンFからの冷
却用空気で内胴1を常に冷却するようにしたこと
を特徴とする湯沸器の燃焼室の構造の考案に係る
ものである。
Its structure is such that a plurality of stepped pleats 2 are formed on the peripheral wall of the inner shell 1, and ventilation holes 3 are bored in the pleats 2 to introduce cooling air from a forced fan F.
A water heater characterized in that the inner shell is hermetically surrounded by a ventilation gap 5 having a communication hole 8 to the main burner, so that the inner shell 1 is always cooled with cooling air from a forced fan F. This invention concerns the design of the structure of the combustion chamber.
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き説明すると、第1図ないし
第3図において1は内胴で、その周壁に複数条の
段状ひだ2を所定の間隔を存して水平状に形成
し、該ひだ2の段部2aに強制フアンFからの冷
却用空気を導入する多数の通気孔3を穿設してい
る。上記内胴1はその外面をケーシング4で覆
い、内胴1とケーシング4間に通気間隙5を形成
せしめ、該通気間隙5の上部一側に強制フアンF
からの送風ダクト6を接続し、かつ、下部のメイ
ンバーナ室7との間には連通孔8を穿つた仕切板
9を設けて内胴1の外周面を通気間隙5を存して
密閉し、強制フアンFからの冷却用空気が送風ダ
クト6及び通気間隙5を介して各々のひだ2の段
部2aに穿つた多数の通気孔3から内胴1内に上
向きに噴入して内胴1の各部を該冷却用空気で均
等に冷却するとともに、内胴1の下部に設置した
メインバーナ10にも通気間隙5に供給された燃
焼用空気を仕切板9の連通孔8を介して供するも
のである。これによつて、メインバーナ10に必
要な空気は該連通孔8から供給され、又内胴1を
冷却するに必要な空気はひだ2の通気孔3から供
給される。ひだ2の通気孔3からの通気量は内胴
冷却に必要な最低量であり、通過後は内胴の保有
熱で昇温されて燃焼排気と混合するので、相殺し
て効率には影響はほとんどない。
An embodiment of the structure of the combustion chamber of a water heater according to this invention will be explained below based on the drawings. In Figs. 1 to 3, reference numeral 1 denotes an inner shell, and a plurality of stepped folds 2 are formed on the peripheral wall of the inner shell. A large number of ventilation holes 3 are formed horizontally at intervals, and the stepped portions 2a of the pleats 2 are provided with a large number of ventilation holes 3 through which cooling air from the forced fan F is introduced. The outer surface of the inner shell 1 is covered with a casing 4, a ventilation gap 5 is formed between the inner shell 1 and the casing 4, and a forced fan F is installed at one side of the upper part of the ventilation gap 5.
A partition plate 9 with a communication hole 8 is provided between the main burner chamber 7 and the lower main burner chamber 7 to seal the outer peripheral surface of the inner shell 1 with a ventilation gap 5. , the cooling air from the forced fan F is injected upward into the inner shell 1 through the ventilation duct 6 and the ventilation gap 5 into the inner shell 1 from a large number of ventilation holes 3 bored in the step portion 2a of each pleat 2. 1 are uniformly cooled with the cooling air, and the combustion air supplied to the ventilation gap 5 is also supplied to the main burner 10 installed at the lower part of the inner shell 1 via the communication hole 8 of the partition plate 9. It is something. As a result, the air necessary for the main burner 10 is supplied from the communication hole 8, and the air necessary for cooling the inner shell 1 is supplied from the ventilation holes 3 of the pleats 2. The amount of ventilation from the ventilation holes 3 of the pleats 2 is the minimum amount necessary for cooling the inner shell, and after passing through, the temperature is raised by the heat held in the inner shell and mixes with the combustion exhaust, so there is no effect on efficiency. rare.
なお、第1図及び第2図の実施例ではひだ2の
形状を外上り段状に形成しているが、第3図の実
施例のよに外下り段状のひだ2とすると、通気孔
3からの噴入空気が内胴1の内面に効率よく接触
するから小量の通気量で目的が達成でき実施上有
益である。更に又、ひだ2を螺旋状に形成するこ
とも勿論可能である。図中、11は内胴1の上部
に備えた熱交換器、12は給水管、13は出湯管
である。 In the embodiments shown in FIGS. 1 and 2, the shape of the folds 2 is stepped outwardly, but if the folds 2 are shaped like descending steps as in the embodiment shown in FIG. Since the air injected from 3 efficiently contacts the inner surface of the inner shell 1, the purpose can be achieved with a small amount of ventilation, which is useful in practice. Furthermore, it is of course possible to form the pleats 2 in a spiral shape. In the figure, 11 is a heat exchanger provided in the upper part of the inner shell 1, 12 is a water supply pipe, and 13 is a hot water outlet pipe.
この考案は、以上説明したように、内胴の周壁
に形成した複数条のひだに強制フアンからの冷却
用空気を導入する通気孔を穿つたという簡単な構
造で、内胴を冷却用空気により常に効率よく冷却
するから後沸き現象の防止は勿論、内胴が高温に
加熱されることがないから内胴を肉薄の鋼板等で
作出でき、したがつて、その軽量化及びコストの
低減が実現できる。また、複数条のひだによつて
内胴の剛性も増しその耐久性の向上が図りうるな
ど、従来にないすぐれた効果を奏するものであ
る。
As explained above, this device has a simple structure in which ventilation holes are bored through multiple folds formed on the peripheral wall of the inner shell to introduce cooling air from a forced fan. Because it is always efficiently cooled, it not only prevents the after-boiling phenomenon, but also because the inner shell is not heated to high temperatures, the inner shell can be made of thin steel plate, etc., which reduces its weight and cost. can. In addition, the plurality of folds increases the rigidity of the inner shell and improves its durability, which provides excellent effects never seen before.
第1図はこの考案による湯沸器の燃焼室の構造
の一実施例を示した縦断正面図、第2図は内胴だ
けの横断平面図、第3図はひだの形状を異にする
一部断面図、第4図及び第5図は従来例の構成図
である。
1……内胴、2……ひだ、3……通気孔、4…
…ケーシング、F……強制フアン。
Figure 1 is a longitudinal sectional front view showing one embodiment of the structure of the combustion chamber of a water heater according to this invention, Figure 2 is a cross-sectional plan view of only the inner shell, and Figure 3 is a cross-sectional view of one embodiment of the structure of the combustion chamber of a water heater according to this invention. The partial sectional view, FIG. 4, and FIG. 5 are configuration diagrams of a conventional example. 1...Inner body, 2...Folds, 3...Vent holes, 4...
...Casing, F...Forced fan.
Claims (1)
該ひだ2に強制フアンFからの冷却用空気を導入
する通気孔3を穿設するとともに、内胴1の周囲
をメインバーナへの連通孔8を備えた通気間隙5
で密閉囲繞して成ることを特徴とする湯沸器の燃
焼室の構造。 A plurality of stepped pleats 2 are formed on the peripheral wall of the inner shell 1,
A ventilation hole 3 for introducing cooling air from a forced fan F is bored in the pleats 2, and a ventilation gap 5 is provided around the inner shell 1 with a communication hole 8 to the main burner.
A structure of a combustion chamber of a water heater characterized by being enclosed in a hermetically sealed chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10783784U JPS6123656U (en) | 1984-07-17 | 1984-07-17 | Structure of the combustion chamber of a water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10783784U JPS6123656U (en) | 1984-07-17 | 1984-07-17 | Structure of the combustion chamber of a water heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6123656U JPS6123656U (en) | 1986-02-12 |
JPH0225074Y2 true JPH0225074Y2 (en) | 1990-07-10 |
Family
ID=30667061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10783784U Granted JPS6123656U (en) | 1984-07-17 | 1984-07-17 | Structure of the combustion chamber of a water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6123656U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63130438A (en) * | 1986-11-20 | 1988-06-02 | Kubota Ltd | Working truck |
JPH0261413A (en) * | 1988-08-25 | 1990-03-01 | Rinnai Corp | Forced blast type burner |
-
1984
- 1984-07-17 JP JP10783784U patent/JPS6123656U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6123656U (en) | 1986-02-12 |
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