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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