JP2506899B2 - Combustion device - Google Patents
Combustion deviceInfo
- Publication number
- JP2506899B2 JP2506899B2 JP63041316A JP4131688A JP2506899B2 JP 2506899 B2 JP2506899 B2 JP 2506899B2 JP 63041316 A JP63041316 A JP 63041316A JP 4131688 A JP4131688 A JP 4131688A JP 2506899 B2 JP2506899 B2 JP 2506899B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- gas
- exhaust top
- burner
- 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 - Fee Related
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は燃焼室と排気トップの間の内圧差を検出する
差圧検出装置を設けた燃焼装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion device provided with a differential pressure detecting device for detecting an internal pressure difference between a combustion chamber and an exhaust top.
従来の技術 従来この種の燃焼装置は、第４図に示すような構造に
なっている。すなわち、開成されたガス制御弁６から送
られたガスとファン５から送られた空気を混合させてバ
ーナ４から噴出させ、燃焼室３で燃焼させる。そして、
その燃焼ガスは熱交換器２、排気筒１、排気トップ８を
経由して機外に放出される。また、バーナ４の燃焼の制
御方式は第５図、第６図に示すようになっている。すな
わち、熱交換器２の出口側に設けた出湯サーミスタ13に
よる出湯温度の信号により、これを設定温度と比較し制
御部７で負荷を演算し負荷に応じたガス制御弁６の出力
を決定する。又、この決定されたガス制御弁６の出力に
応じたファン５の出力を決定し制御部７によりファン５
を制御し燃焼用空気を供給する。2. Description of the Related Art Conventionally, this type of combustion device has a structure as shown in FIG. That is, the gas sent from the opened gas control valve 6 and the air sent from the fan 5 are mixed and ejected from the burner 4 and burned in the combustion chamber 3. And
The combustion gas is discharged to the outside of the machine via the heat exchanger 2, the exhaust stack 1, and the exhaust top 8. The combustion control system of the burner 4 is as shown in FIGS. 5 and 6. That is, the output temperature of the hot water thermistor 13 provided on the outlet side of the heat exchanger 2 is compared with a set temperature, and the control unit 7 calculates the load to determine the output of the gas control valve 6 according to the load. . Further, the output of the fan 5 is determined according to the determined output of the gas control valve 6, and the control unit 7 causes the fan 5 to output.
To supply combustion air.
発明が解決しようとする課題 しかしながら上記のような構成では、排気トップ８に
風を受けた場合、そして熱交換器２がスス等でフィン詰
まりした場合など、ガス制御弁６の出力と、ファン５の
出力が常に一定の関係であると、ファン５の風量が減少
し、燃焼不良をおこすという課題を有していた。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, with the above-described configuration, when the exhaust top 8 receives wind, and when the heat exchanger 2 is clogged with fins such as soot, the output of the gas control valve 6 and the fan 5 If the output of No. 2 is always constant, the air volume of the fan 5 decreases, causing a problem of poor combustion.
本発明は上記課題に鑑み、燃焼室の圧力変動があって
も常に燃焼を安定させる燃焼装置を提供するものであ
る。In view of the above problems, the present invention provides a combustion device that always stabilizes combustion even when there is a pressure fluctuation in the combustion chamber.
課題を解決するための手段 上記課題を解決するために本発明の燃焼装置は燃焼室
と排気トップ内に連通した差圧検出装置にて内圧差を検
出し、この内圧差を負荷に応じた内圧差になるように制
御する制御部を備えたものである。Means for Solving the Problems In order to solve the above problems, the combustion device of the present invention detects an internal pressure difference by a differential pressure detection device that communicates with the combustion chamber and the exhaust top, and the internal pressure difference corresponds to the internal pressure according to the load. A control unit for controlling the difference is provided.
作用 本発明は上記構成によって、外的要因による、燃焼室
の内圧の変化を排気トップと燃焼室の差圧を差圧検出装
置で検出し、ガス制御弁の出力にあった差圧になるよう
に、ファンを制御し、燃焼に必要な空気を安定に供給す
ることになる。Effect of the Invention With the above-described configuration, the present invention detects the change in the internal pressure of the combustion chamber due to external factors by the differential pressure detection device for the differential pressure between the exhaust top and the combustion chamber, and makes the differential pressure suitable for the output of the gas control valve. In addition, the fan is controlled and the air required for combustion is stably supplied.
実施例 以下本発明の一実施例の燃焼装置について、図面を参
照しながら説明する。第１図は本発明の燃焼装置の構成
を示すものである。第１図において、開成されたガス制
御弁６から送られたガスとファン５から送られた空気を
混合し、バーナ４から噴出させ、燃焼室３で燃焼させ
る。この燃焼ガスは熱交換器２、排気筒１、排気トップ
８を経由して機外に放出される。また燃焼室３と排気ト
ップ８にそれぞれの内圧を検出する導管11と導管12を差
圧検出装置10で連結している。また、バーナ４の燃焼制
御方式は第２図、第３図に示すようになっている。すな
わち熱交換器２の出口に設けた出湯サーミスタ13の湯温
の信号により、これを設定温度と比較して制御部７で負
荷を演算し、この負荷に応じたガス制御弁６の出力（ガ
ス供給量）を決定する。一方、差圧検出装置10で検出し
た差圧が、前記決定されたガス制御弁６の出力に応じ
た、燃焼室３と排気トップ８の内圧差になるよう、ファ
ン５の出力（回転力）を制御部７で決定し、この制御部
７からの信号でファン５を回転させ、燃焼用空気を供給
する。Embodiment Hereinafter, a combustion apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the structure of the combustion apparatus of the present invention. In FIG. 1, the gas sent from the opened gas control valve 6 and the air sent from the fan 5 are mixed, ejected from the burner 4 and burned in the combustion chamber 3. This combustion gas is discharged to the outside of the machine via the heat exchanger 2, the exhaust stack 1, and the exhaust top 8. Further, a conduit 11 and a conduit 12 for detecting respective internal pressures are connected to the combustion chamber 3 and the exhaust top 8 by a differential pressure detecting device 10. The combustion control system of the burner 4 is as shown in FIGS. 2 and 3. That is, the controller 7 calculates a load by comparing the hot water temperature signal of the hot water discharge thermistor 13 provided at the outlet of the heat exchanger 2 with a set temperature, and outputs the gas (the gas control valve 6 according to the load). Supply amount). On the other hand, the output (rotational force) of the fan 5 is set so that the differential pressure detected by the differential pressure detection device 10 becomes the internal pressure difference between the combustion chamber 3 and the exhaust top 8 according to the determined output of the gas control valve 6. Is determined by the control unit 7, the fan 5 is rotated by a signal from the control unit 7, and the combustion air is supplied.
このように本実施例によれば、排気トップ８などに風
を受けた場合、または熱交換器２がスス等でフィン詰ま
りした場合など、熱交換器２を連通する燃焼ガスの抵抗
が増し、燃焼不良が発生する。この様な場合に、本実施
例では、燃焼室３と排気トップ８の差圧を差圧検出装置
10により検出し負荷に応じた差圧に保つようファン５を
制御することにより、燃焼を安定させることができる。As described above, according to the present embodiment, when the exhaust top 8 or the like receives wind, or when the heat exchanger 2 is clogged with soot or the like, the resistance of the combustion gas communicating with the heat exchanger 2 increases. Poor combustion occurs. In such a case, in the present embodiment, the differential pressure detecting device detects the differential pressure between the combustion chamber 3 and the exhaust top 8.
Combustion can be stabilized by controlling the fan 5 so as to maintain the pressure difference detected by 10 and according to the load.
また、給気口９がホコリの堆積や風で吹き飛んできた
紙切れ等で塞がれた、いわゆる給気異常がある場合など
は、ファン５の吸い込みのための負圧が増え、従ってバ
ーナに吐出する正圧がそれだけ減少する。このため排気
トップとの圧力差が大きくなって制御部７が給気異常を
検出できる。In addition, when there is a so-called air supply abnormality, such as when the air supply port 9 is blocked by accumulation of dust or blown away by a piece of paper blown off by the wind, the negative pressure for suction of the fan 5 increases, and therefore discharge to the burner. The positive pressure is reduced by that amount. Therefore, the pressure difference with the exhaust top becomes large, and the control unit 7 can detect the supply abnormality.
発明の効果 以上のように本発明は、燃焼室と排気トップ間の圧力
差を検出する差圧検出装置を設けることにより、この検
出する圧力差を制御部が熱交換器の負荷に応じた、つま
りガス制御弁の出力に応じた圧力差になるように保ち、
燃焼の安定をはかることができる。また、給気口が塞が
れる等の給気異常のときには検出する圧力差が正常時よ
り大きくなるから、制御部が給気異常も検出できる。Effects of the Invention As described above, the present invention provides the differential pressure detection device for detecting the pressure difference between the combustion chamber and the exhaust top, and the control unit controls the detected pressure difference according to the load of the heat exchanger, In other words, keep the pressure difference according to the output of the gas control valve,
Combustion can be stabilized. Further, in the case of an air supply abnormality such as the air supply port being blocked, the pressure difference detected is larger than that in the normal time, so that the control unit can also detect the air supply abnormality.
第１図は本発明の一実施例における燃焼装置の構成図、
第２図、第３図は本実施例における燃焼装置の制御方式
図、第４図は従来の燃焼装置を示す構成図、第５図、第
６図は従来例における燃焼装置の制御方式図である。 ３……燃焼室、４……バーナ、５……ファン、６……ガ
ス制御弁、８……排気トップ、10……差圧検出焼置。FIG. 1 is a configuration diagram of a combustion device in one embodiment of the present invention,
2 and 3 are control system diagrams of the combustion device in this embodiment, FIG. 4 is a configuration diagram showing a conventional combustion device, and FIGS. 5 and 6 are control system diagrams of the combustion device in the conventional example. is there. 3 ... Combustion chamber, 4 ... Burner, 5 ... Fan, 6 ... Gas control valve, 8 ... Exhaust top, 10 ... Differential pressure detection baking.
Claims (1)
と、前記バーナの燃焼排気ガスを外部に排出する排気ト
ップと、この排気トップ以外で器具外部と通気する給気
口と、前記燃焼室に生じた燃焼ガスにより加熱され、前
記燃焼室と前記排気トップに介設した熱交換器と、前記
バーナ内に燃焼用空気を送るファンと、前記バーナにガ
スを供給するガス制御弁と、前記燃焼室と前記排気トッ
プの圧力差を検出する差圧検出装置と、この差圧検出装
置の検出した圧力差を、前記ガス制御弁の出力に応じた
圧力差になるよう前記ファンの出力を制御する制御部と
を備えた燃焼装置。1. A burner for burning gas, a combustion chamber thereof, an exhaust top for discharging combustion exhaust gas of the burner to the outside, an air supply port for ventilating outside of the equipment other than the exhaust top, and the combustion chamber. A heat exchanger that is heated by the generated combustion gas and is provided in the combustion chamber and the exhaust top, a fan that sends combustion air into the burner, a gas control valve that supplies gas to the burner, and the combustion A differential pressure detecting device for detecting a pressure difference between the chamber and the exhaust top, and controlling the output of the fan so that the pressure difference detected by the differential pressure detecting device becomes a pressure difference according to the output of the gas control valve. A combustion device including a control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63041316A JP2506899B2 (en) | 1988-02-24 | 1988-02-24 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63041316A JP2506899B2 (en) | 1988-02-24 | 1988-02-24 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01217122A JPH01217122A (en) | 1989-08-30 |
| JP2506899B2 true JP2506899B2 (en) | 1996-06-12 |
Family
ID=12605106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63041316A Expired - Fee Related JP2506899B2 (en) | 1988-02-24 | 1988-02-24 | Combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506899B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100686009B1 (en) * | 2004-10-12 | 2007-02-23 | 엘지전자 주식회사 | Device for controlling air volume based on system load and method for controlling air volume in gas burner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044727A (en) * | 1983-08-22 | 1985-03-09 | Matsushita Electric Ind Co Ltd | Suction/exhaust type combustion device |
-
1988
- 1988-02-24 JP JP63041316A patent/JP2506899B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01217122A (en) | 1989-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |