JP2814745B2 - Water heater - Google Patents
Water heaterInfo
- Publication number
- JP2814745B2 JP2814745B2 JP2338212A JP33821290A JP2814745B2 JP 2814745 B2 JP2814745 B2 JP 2814745B2 JP 2338212 A JP2338212 A JP 2338212A JP 33821290 A JP33821290 A JP 33821290A JP 2814745 B2 JP2814745 B2 JP 2814745B2
- Authority
- JP
- Japan
- Prior art keywords
- outer case
- combustion air
- fan
- heat exchanger
- top plate
- 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 - Lifetime
Links
Landscapes
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は加熱バーナを用いた給湯機に関する。Description: TECHNICAL FIELD The present invention relates to a water heater using a heating burner.
従来の技術 従来のこの種の給湯機は、例えば実開昭60−113446号
公報に示されているように、第２図のような構造になっ
ていた。すなわち１は加熱バーナであり、ファン２によ
り送られた燃焼用空気と燃料とを用いて燃焼させる。こ
の燃焼熱により熱交換器３で水を加熱して給湯し、熱交
換後の排気ガスは排気通路４を通って機外に放出され
る。そしてこの給湯機は吸気口５が設けられた外装ケー
ス６で覆われており、燃焼用空気は吸気口５より外装ケ
ース６内に入りファン２に向かって流れる。2. Description of the Related Art A conventional water heater of this type has a structure as shown in FIG. That is, reference numeral 1 denotes a heating burner, which burns using the combustion air and fuel sent by the fan 2. This heat of combustion heats the water in the heat exchanger 3 to supply hot water, and the exhaust gas after the heat exchange is discharged to the outside through the exhaust passage 4. The water heater is covered with an outer case 6 provided with an air inlet 5, and combustion air flows into the outer case 6 from the air inlet 5 and flows toward the fan 2.
発明が解決しようとする課題 しかし、このような構成のものでは、外装ケース６内
を流れる燃焼用空気は、ファン２に近い場合、抵抗の少
ない場所に集中し、Ａ部などは空気滞留場所となる。万
一このような場所で排気通路や熱交換器の壁が熱歪み等
によって破れた場合には高温の排気ガスが滞留して外装
ケース６を異常加熱し、火災等の危険を有するという問
題点があった。However, in such a configuration, when the combustion air flowing in the outer case 6 is close to the fan 2, the combustion air concentrates on a place with low resistance, and the part A and the like are located at the air stagnation place. Become. In the event that the exhaust passage or the wall of the heat exchanger is broken due to thermal distortion or the like in such a place, the high-temperature exhaust gas stays and abnormally heats the outer case 6, thereby causing a risk of fire or the like. was there.
本発明はこのような従来の問題点を解決し、空気滞留
場所のない安全性の高い給湯機の提供を目的とする。An object of the present invention is to solve such a conventional problem and to provide a highly safe water heater having no air stagnation place.
課題を解決するための手段 上記の目的を達成するために、本願発明の給湯機は、
吸込口を有し燃焼用空気を供給するファンと、燃料を燃
焼させる加熱バーナと、水を加熱する熱交換器と、排気
口を有する排気通路とを前記ファンを最下部として外装
ケース内に収納し、排気口の位置する前記外装ケースの
縦面と反対側の外装ケースの縦面の上部に前記ファンに
より吸込まれる燃焼用空気の吸気口を設け、前記吸気口
の下流の外装ケース内に燃焼用空気を外装ケースの天板
に衝突させる吸気案内板を設け、該吸気案内板と前記外
装ケースの縦面で形成する燃焼用空気通路の開口部を前
記外装ケースの天板に対向するように配して、吸気口よ
り吸い込まれた燃焼用空気が外装ケースの天板に衝突し
た後、排気通路、熱交換器、加熱バーナに沿って下降
し、外装ケース内の最下部に設けたファンの吸込口より
吸入され、前記加熱バーナに供給されるようにしたもの
である。Means for Solving the Problems In order to achieve the above object, a water heater of the present invention is
A fan having an inlet for supplying combustion air, a heating burner for burning fuel, a heat exchanger for heating water, and an exhaust passage having an exhaust port are housed in the outer case with the fan at the bottom. An intake port for combustion air to be sucked by the fan is provided at an upper portion of a vertical surface of the outer case opposite to the vertical surface of the outer case where the exhaust port is located, and inside the outer case downstream of the intake port. An intake guide plate for causing combustion air to collide with a top plate of the outer case is provided, and an opening of a combustion air passage formed by the intake guide plate and a vertical surface of the outer case is opposed to the top plate of the outer case. After the combustion air sucked from the intake port collides with the top plate of the outer case, it descends along the exhaust passage, the heat exchanger, and the heating burner, and is provided at the lowest part in the outer case. From the suction port of the It is obtained so as to be supplied to the over Na.
作用 本発明は上記構成により、燃焼用空気が外装ケースの
上面内側に衝突し外装ケース内全域を流れることになり
空気滞留場所がなくなり、万一排気通路や熱交換器の壁
が熱歪み等によって破れて高温の排気ガス漏れが発生し
ても燃焼用空気に希釈されながら流れることになる。Effect of the Invention With the above configuration, the present invention allows combustion air to collide with the inside of the upper surface of the outer case and flow through the entire outer case, eliminating the air stagnation area. Even if it breaks and a high-temperature exhaust gas leak occurs, it flows while being diluted with combustion air.
実施例 以下、本発明の一実施例を図面にもとづいて説明す
る。第１図において１は加熱バーナであり、その加熱バ
ーナ１の上流には燃焼用空気を送るファン２及び燃料を
送るポンプ７を取りつけている。８はファン２の吸込
口、３は水管やフィン（図示せず）を持った熱交換器、
４は排気通路、９は排気通路４に対して設けた排気口で
ある。６はこれらの部品を覆う外装ケースであり、５は
吸気口、矢印10は空気流である。このようにファン２と
加熱バーナ１と、熱交換器３と、排気通路４とをファン
２を最下部として順次接続して外装ケース６内に収納し
ている。外装ケース６の縦面の上部に設けられた吸気口
５に対向する位置に吸気案内板11を設け、空間12を形成
している。この空間12は上部のみ開口しており、この開
口部13は外装ケース６の天板14の近傍に位置している。
また吸気案内板11により形成した開口部13は排気通路４
と対応する位置に設けており、その幅は排気通路４と天
板14の間隔とほぼ同一幅としている。15は熱交換器３に
取り付けた遮熱板であり左右のみ開口している。16は温
度検出器であり遮熱板15に取り付けている。Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a heating burner, and a fan 2 for sending combustion air and a pump 7 for sending fuel are mounted upstream of the heating burner 1. 8 is a suction port of the fan 2, 3 is a heat exchanger having a water pipe and fins (not shown),
Reference numeral 4 denotes an exhaust passage, and 9 denotes an exhaust port provided for the exhaust passage 4. 6 is an exterior case covering these parts, 5 is an air inlet, and arrow 10 is an air flow. In this manner, the fan 2, the heating burner 1, the heat exchanger 3, and the exhaust passage 4 are sequentially connected to each other with the fan 2 as the lowermost part and housed in the outer case 6. An intake guide plate 11 is provided at a position facing the intake port 5 provided at the upper part of the vertical surface of the outer case 6 to form a space 12. This space 12 is open only at the upper part, and this opening 13 is located near the top plate 14 of the outer case 6.
The opening 13 formed by the intake guide plate 11 is
And the width thereof is substantially the same as the interval between the exhaust passage 4 and the top plate 14. Reference numeral 15 denotes a heat shield attached to the heat exchanger 3, which is open only on the left and right. Reference numeral 16 denotes a temperature detector which is attached to the heat shield plate 15.
次に、この一実施例の構成における動作を説明する。
ポンプ７で燃料を、ファン２で燃焼用空気を加熱バーナ
１に送り燃焼させる。燃焼排気ガスは熱交換器３に入り
ここで水を加熱し、給湯に供する。熱交換後の排気ガス
は排気通路４を通って排気口９より機外に放出される。
ファン２によって吸引される空気は吸気口５より外装ケ
ース６内に入るが吸気案内板11により上方に偏向し開口
部13より吐出し、天板14の内面に衝突する。そして天板
14の内面に添って拡散し、外装ケース６内の空間前面に
わたってファン２の吸込口８に向かって流れ、空気滞留
場所が生じない。この結果、正常時に於ける冷却効果は
もちろんのこと、排気通路や熱交換器が熱歪み等によっ
てどの場所で破れても、吐出する高温の排気ガスは希釈
されながら燃焼用空気とともに流れて滞留しないため、
外装ケースを異常に加熱し火災等の危険を有するという
不具合は生じない。また遮熱板15は熱交換器から吐出す
る排気ガスを左右に分散し希釈を促進させる。Next, the operation of the configuration of the embodiment will be described.
The pump 7 sends fuel and the fan 2 sends combustion air to the heating burner 1 for combustion. The combustion exhaust gas enters the heat exchanger 3 where it heats the water and supplies it to hot water. The exhaust gas after the heat exchange passes through the exhaust passage 4 and is discharged from the exhaust port 9 to the outside of the machine.
The air sucked by the fan 2 enters the exterior case 6 through the intake port 5, but is deflected upward by the intake guide plate 11, discharged from the opening 13, and collides with the inner surface of the top plate 14. And the top plate
The air diffuses along the inner surface of the outer case 14 and flows toward the suction port 8 of the fan 2 over the front surface of the space in the outer case 6, so that no air stagnation area is generated. As a result, even if the exhaust passage or the heat exchanger is broken at any place due to thermal distortion, as well as the normal cooling effect, the discharged high-temperature exhaust gas flows together with the combustion air while being diluted and does not stay there. For,
There is no problem that the outer case is abnormally heated and there is a danger such as a fire. Further, the heat shield plate 15 disperses the exhaust gas discharged from the heat exchanger to the left and right to promote dilution.
発明の効果 以上のように本発明は、吸気口より吸い込まれた燃焼
用空気が外装ケースの天板に衝突した後、排気通路、熱
交換器、加熱バーナに沿って下降し、外装ケース内の最
下部に設けたファンの吸込口に向かって流れることによ
って、万一排気通路や熱交換器の壁が熱歪み等によって
破れ高温の排気ガスが吐出しても異常加熱しない安全性
の高い給湯機を提供することができものである。Effect of the Invention As described above, the present invention provides that after the combustion air sucked from the intake port collides with the top plate of the outer case, it descends along the exhaust passage, the heat exchanger, and the heating burner, and Highly safe water heater that does not abnormally heat even if the exhaust passage or the wall of the heat exchanger breaks due to thermal distortion or the like and discharges high-temperature exhaust gas by flowing toward the suction port of the fan provided at the bottom. That can be provided.
第１図は本発明の一実施例における給湯機の縦断面図、
第２図は従来例の給湯機における縦断面図である。 １……加熱バーナ、２……ファン、３……熱交換器、４
……排気通路、５……吸気口、６……外装ケース、８…
…吸込口、９……排気口、11……吸気案内板。FIG. 1 is a longitudinal sectional view of a water heater according to one embodiment of the present invention,
FIG. 2 is a longitudinal sectional view of a conventional water heater. 1 ... heating burner, 2 ... fan, 3 ... heat exchanger, 4
... exhaust passage, 5 ... intake port, 6 ... outer case, 8 ...
... Suction port, 9 ... Exhaust port, 11 ... Intake guide plate.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 籔内 勝博 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 上田 哲也 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 藤本 竜男 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 実開 昭57−33942（ＪＰ，Ｕ) 実開 昭60−111451（ＪＰ，Ｕ) 実開 昭56−168755（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F24H 9/02 302──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsuhiro Yabuuchi 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Tatsuo Fujimoto 1006 Kadoma, Kazuma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (56) References Shokai Sho 57-33942 (JP, U) Shokai Sho 60-111451 (JP, U) 56-168755 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) F24H 9/02 302
Claims (1)
と、燃料を燃焼させる加熱バーナと、水を加熱する熱交
換器と、排気口を有する排気通路とを前記ファンを最下
部として外装ケース内に収納し、排気口の位置する前記
外装ケースの縦面と反対側の外装ケースの縦面の上部に
前記ファンにより吸い込まれる燃焼用空気の吸気口を設
け、前記吸気口の下流の外装ケース内に燃焼用空気を外
装ケースの天板に衝突させる吸気案内板を設け、該吸気
案内板と前記外装ケースの縦面で形成する燃焼用空気通
路の開口部を前記外装ケースの天板に対向するように配
して、吸気口より吸い込まれた燃焼用空気が外装ケース
の天板に衝突した後、排気通路、熱交換器、加熱バーナ
に沿って下降し、外装ケース内の最下部に設けたファン
の吸込口より吸入され、前記加熱バーナに供給されるよ
うにした給湯機。1. A fan having an intake port for supplying combustion air, a heating burner for burning fuel, a heat exchanger for heating water, and an exhaust passage having an exhaust port, wherein the fan is located at the bottom. It is housed in an outer case, and an intake port for combustion air sucked by the fan is provided at an upper portion of a vertical surface of the outer case opposite to the vertical surface of the outer case where the exhaust port is located, and a downstream side of the intake port is provided. An intake guide plate for causing combustion air to collide with a top plate of the outer case is provided in the outer case, and an opening of a combustion air passage formed by the intake guide plate and a vertical surface of the outer case is provided with a top plate of the outer case. After the combustion air sucked in from the intake port collides with the top plate of the outer case, it descends along the exhaust passage, heat exchanger, and heating burner, and the lowermost part in the outer case Suction from the fan inlet provided at It is, water heater and to be supplied to the heating burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2338212A JP2814745B2 (en) | 1990-11-30 | 1990-11-30 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2338212A JP2814745B2 (en) | 1990-11-30 | 1990-11-30 | Water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04208357A JPH04208357A (en) | 1992-07-30 |
| JP2814745B2 true JP2814745B2 (en) | 1998-10-27 |
Family
ID=18315982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2338212A Expired - Lifetime JP2814745B2 (en) | 1990-11-30 | 1990-11-30 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2814745B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111451U (en) * | 1983-12-29 | 1985-07-29 | 三菱電機株式会社 | heating boiler |
-
1990
- 1990-11-30 JP JP2338212A patent/JP2814745B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04208357A (en) | 1992-07-30 |
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