JPH0619231B2 - Instant water heater - Google Patents
Instant water heaterInfo
- Publication number
- JPH0619231B2 JPH0619231B2 JP59039219A JP3921984A JPH0619231B2 JP H0619231 B2 JPH0619231 B2 JP H0619231B2 JP 59039219 A JP59039219 A JP 59039219A JP 3921984 A JP3921984 A JP 3921984A JP H0619231 B2 JPH0619231 B2 JP H0619231B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- water heater
- exhaust
- pressure
- fan
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/112—Preventing or detecting blocked flues
- F24H15/116—Disabling the heating means in response thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は瞬間湯沸器に関するものである。TECHNICAL FIELD OF THE INVENTION The present invention relates to an instant water heater.
従来例の構成とその問題点 従来の例えば第１図に示す瞬間湯沸器において水入口１
より流入した水はフロースイッチ２を作動させ熱交換器
３にてバーナー４によって加熱され、湯出口５へ流出す
る。バーナー４の燃焼はガスコントローラー６によって
制御される。一方熱交換器３を経た排気ガスはファン７
により排気トップ８より器外へ排出される。ファン７に
は回転数検出部９が装着されており、常にファン７の回
転の有無を検出し、異常時は燃焼を停止させる。Configuration of Conventional Example and Problems Thereof In the conventional instantaneous water heater shown in FIG.
The inflowing water is operated by the flow switch 2 to be heated by the burner 4 in the heat exchanger 3 and flows out to the hot water outlet 5. The combustion of the burner 4 is controlled by the gas controller 6. On the other hand, the exhaust gas that has passed through the heat exchanger 3 is the fan 7
Is discharged from the exhaust top 8 to the outside of the device. A rotation speed detector 9 is attached to the fan 7, and always detects whether the fan 7 is rotating or not, and stops combustion when an abnormality occurs.
ファンにより強制的に排気ガスを排出する燃焼器は従来
の自然ドラフトによる燃焼器に比べて安全性、耐風性、
燃焼の安定性等非常に高い。しかし瞬間湯沸器のように
熱交換部にフイン形状のものを使用すると長期間の使用
のうちにフィン部が詰り、結果として熱交換器が閉塞さ
れていき、ファンにより強制的に排気をしても排ガス量
が減少し、不完全燃焼の原因となる。第２図は熱交換器
閉塞時のデーターの一例で、横軸に熱交換器閉塞率、縦
軸にCO/CO２をとると、約５０％の熱交換器の閉塞で燃
焼性を表わすCO/CO２の値がＪＩＳ基準の０．０２程度
となることがわかる。The combustor that forcibly discharges exhaust gas with a fan is safer, windproof, and safer than the conventional natural draft combustor.
Combustion stability is very high. However, if you use a fin-shaped heat exchange part like an instantaneous water heater, the fin part will be clogged during long-term use, and as a result the heat exchanger will be blocked, and the fan will forcefully exhaust the air. Even so, the amount of exhaust gas decreases, causing incomplete combustion. Fig. 2 shows an example of data when the heat exchanger is blocked. If the horizontal axis is the heat exchanger blockage rate and the vertical axis is CO / CO 2 , about 50% of the heat exchanger blockage represents the combustibility. It can be seen that the value of / CO 2 is about 0.02 of JIS standard.
従って強制的にファンにより排気ガスを排出する燃焼器
においてもフィン部等の詰りにより排気ガス量の減少に
より不完全燃焼が生じる可能性があるわけである。Therefore, even in a combustor in which exhaust gas is forcibly discharged by a fan, incomplete combustion may occur due to a decrease in the amount of exhaust gas due to clogging of fins and the like.
発明の目的 本発明は上記従来の欠点を解消するもので、熱交換器の
フィン部等が閉塞して行き排気ガス量が減少した場合、
不完全燃焼が生じる前に燃焼を停止させるべく安全性の
高い瞬間湯沸器を目的とする。An object of the present invention is to eliminate the above-mentioned conventional drawbacks. When the fin portion of the heat exchanger is closed and the exhaust gas amount decreases,
The purpose is to provide a highly safe instant water heater to stop combustion before incomplete combustion occurs.
発明の構成 上記目的を達成するために、本発明の瞬間湯沸器は熱交
換器と、この熱交換器の下流側に設けられた排気ファン
と、熱交換器と排気ファンとの間に設けられた圧力セン
サーと、この圧力センサーに接続され排気圧力が所定の
圧力以下になった場合に、燃焼を停止させる手段とを備
えたものである。To achieve the above object, the instant water heater of the present invention is provided with a heat exchanger, an exhaust fan provided on the downstream side of the heat exchanger, and an exhaust fan provided between the heat exchanger and the exhaust fan. And a means which is connected to the pressure sensor and which stops combustion when the exhaust pressure becomes equal to or lower than a predetermined pressure.
実施例の説明 以下、本発明の一実施例について、図面に基づいて説明
する。Description of Embodiments An embodiment of the present invention will be described below with reference to the drawings.
第３図において熱交換器３とファン７の間に圧力検出部
１０を設け圧力検出部１０に圧力センサー１１を接続す
る。圧力検出部１０の圧力は第４図に一データー例を示
すと、横軸に熱交換器閉塞率、縦軸にファン吸込み圧力
（圧力検出部１０圧力）をとると、熱交換器閉塞率４５
％で約−１０ｍｍＨ２Ｏ、５０％で−２０ｍｍＨ２Ｏと
なる。これは熱交換器３の閉塞にともないファン７の吸
込側が負圧になるためである。つまり第２図に示すCO/C
O２の特性と良く似ている。ここで圧力センサー１１の
設定圧力を−１０ｍｍＨ２Ｏとすると熱交換器３の閉塞
率は４５％で圧力センサー１１が作動し、燃焼は停止さ
れる。閉塞率４５％は第２図によればCO/CO２はＪＩＳ
基準の０．０２以下である。ここに熱交換器３のフィン
部の詰りによる不完全燃焼は防止される。In FIG. 3, a pressure detector 10 is provided between the heat exchanger 3 and the fan 7, and a pressure sensor 11 is connected to the pressure detector 10. As for the pressure of the pressure detection unit 10, when one data example is shown in FIG.
% Is about −10 mmH 2 O, and 50% is −20 mmH 2 O. This is because the suction side of the fan 7 becomes negative pressure as the heat exchanger 3 is closed. In other words, CO / C shown in Fig. 2
It is very similar to the characteristics of O 2 . Here the pressure sensor 11 is operated at 45% blockage rate when the set pressure of the pressure sensor 11 and -10mmH 2 O heat exchanger 3, the combustion is stopped. The blockage rate of 45% is CO / CO 2 according to JIS according to Fig. 2.
It is 0.02 or less of the standard. Here, incomplete combustion due to clogging of the fin portion of the heat exchanger 3 is prevented.
このように本実施例によれば熱交換器のフィン部の詰り
による排気ガス量の減少に共う不完全燃焼が未然に防止
出来、きわめて安全性の高い効果を有する。As described above, according to the present embodiment, incomplete combustion due to the decrease in the amount of exhaust gas due to the clogging of the fin portion of the heat exchanger can be prevented in advance, and there is an extremely safe effect.
発明の効果 以上のように本発明によれば次の効果を得ることができ
る。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.
熱交換器と排気ファン間の排気圧力を圧力センサーによ
って検出し、熱交換器フィン部の詰りやバーナ部等の吸
排気路の詰りの程度に応じて任意の所定圧力を設定で
き、燃焼初期の立上り時は勿論のこと、燃焼中における
吸排気路の排気条件の急変も検出できる。By detecting the exhaust pressure between the heat exchanger and the exhaust fan with a pressure sensor, you can set an arbitrary predetermined pressure according to the degree of clogging of the heat exchanger fins or the intake and exhaust passages of the burner, etc. Not only at the start-up, but also sudden changes in the exhaust conditions of the intake and exhaust paths during combustion can be detected.
第１図は従来の燃焼器の構成図、第２図は熱交換器の閉
塞と燃焼性の特性図、第３図は本発明の一実施例の要部
構成図、第４図は熱交換器の閉塞に対するファン吸込部
の圧力特性図である。 ３……熱交換器、７……ファン、１０……圧力検出部、
１１……圧力センサー、FIG. 1 is a configuration diagram of a conventional combustor, FIG. 2 is a characteristic diagram of blockage and combustibility of a heat exchanger, FIG. 3 is a configuration diagram of essential parts of an embodiment of the present invention, and FIG. 4 is heat exchange. It is a pressure characteristic view of the fan suction part with respect to the blockage of the container. 3 ... Heat exchanger, 7 ... Fan, 10 ... Pressure detector,
11 ... pressure sensor,
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮崎 清隆 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 特開 昭58−174145（ＪＰ，Ａ) 実開 昭49−133838（ＪＰ，Ｕ) 実開 昭58−133064（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kiyotaka Miyazaki 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP 58-174145 (JP, A) (JP, U) Actually opened 58-133064 (JP, U)
Claims (1)
られた排気ファンと、前記熱交換器と前記排気ファンと
の間に設けられた圧力センサーと、この圧力センサーに
接続され排気圧力が所定の圧力以下になった場合、燃焼
を停止させる手段とを備えた瞬間湯沸器。1. A heat exchanger, an exhaust fan provided downstream of the heat exchanger, a pressure sensor provided between the heat exchanger and the exhaust fan, and connected to the pressure sensor. An instantaneous water heater provided with means for stopping combustion when the exhaust pressure falls below a predetermined pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59039219A JPH0619231B2 (en) | 1984-02-29 | 1984-02-29 | Instant water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59039219A JPH0619231B2 (en) | 1984-02-29 | 1984-02-29 | Instant water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60185051A JPS60185051A (en) | 1985-09-20 |
| JPH0619231B2 true JPH0619231B2 (en) | 1994-03-16 |
Family
ID=12547025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59039219A Expired - Lifetime JPH0619231B2 (en) | 1984-02-29 | 1984-02-29 | Instant water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619231B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016057044A (en) * | 2014-09-12 | 2016-04-21 | 株式会社ノーリツ | Burner |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100406813B1 (en) * | 2001-04-02 | 2003-11-21 | 주식회사 동아특수건설 | Method and apparatus for mounting lock bolt and lock anchor |
| CN204478519U (en) * | 2015-01-26 | 2015-07-15 | 艾欧史密斯(中国)热水器有限公司 | Gas heater or wall-hung boiler combustion control system |
| CN109357392A (en) * | 2018-09-10 | 2019-02-19 | 广东万家乐燃气具有限公司 | A kind of perseverance negative pressure gas heater |
| CN114963495B (en) * | 2021-06-23 | 2023-07-14 | 青岛经济技术开发区海尔热水器有限公司 | Upward-pumping type direct-current fan gas water heater and control method thereof |
| CN114963569B (en) * | 2022-05-30 | 2024-04-09 | 广东万和热能科技有限公司 | Control method of gas water heater and gas water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49133838U (en) * | 1973-03-13 | 1974-11-18 |
-
1984
- 1984-02-29 JP JP59039219A patent/JPH0619231B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016057044A (en) * | 2014-09-12 | 2016-04-21 | 株式会社ノーリツ | Burner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60185051A (en) | 1985-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |