JPS63204017A - Combustion device - Google Patents
Combustion deviceInfo
- Publication number
- JPS63204017A JPS63204017A JP62038482A JP3848287A JPS63204017A JP S63204017 A JPS63204017 A JP S63204017A JP 62038482 A JP62038482 A JP 62038482A JP 3848287 A JP3848287 A JP 3848287A JP S63204017 A JPS63204017 A JP S63204017A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- combustion
- output
- pressure difference
- venturi
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 239000000567 combustion gas Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 239000004071 soot Substances 0.000 abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/04—Measuring pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/04—Measuring pressure
- F23N2225/06—Measuring pressure for determining flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/18—Measuring temperature feedwater temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、バーナとファンの間に、ベンチュリ一部を設
けた燃焼装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a combustion device having a venturi section between a burner and a fan.
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、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。2. Description of the Related Art Conventionally, this type of combustion apparatus has a structure as shown in FIG. That is, gas sent from the gas control valve 6 and air sent from the fan 5 are mixed, ejected from the burner 4, and combusted in the combustion chamber 3. The combustion gas is then discharged to the outside of the machine via the heat exchanger 2, the exhaust stack 1, and the exhaust top 8.
また、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、これと設
定温度を比較し、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。The combustion control method is shown in FIGS. 5 and 6. That is, the hot water output temperature signal from the hot water output thermistor 13 installed on the outlet side of the heat exchanger 2 is compared with the set temperature, the load is calculated in the control unit 7, and the output of the gas control valve 6 is adjusted according to this load. (gas supply amount).
また、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。Further, the output of the fan 5 is determined in accordance with the determined output of the gas control valve 6, and the control unit 7 controls the fan 5 to supply combustion air.
発明が解決しようとする問題点
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問題点を有していた。Problems to be Solved by the Invention However, with the above configuration, when the exhaust top 8 receives wind or when the heat exchanger 2 is clogged with soot or the like, the output of the gas control valve 6 and If the output of the fan 5 is always constant, there is a problem in that the air volume of the fan 5 decreases, resulting in poor combustion.
本発明は上記問題点に鑑み、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-mentioned problems, the present invention provides a combustion device that always stabilizes combustion even if there are pressure fluctuations in the combustion chamber.
問題点を解決するための手段
上記問題点を解決するために本発明の燃焼装置はバーナ
とファンとの間の燃焼用空気の供給路にベンチュリ一部
を設けるとともに前記ベンチュリ一部の差圧を検出する
差圧検出装置を設け、この差圧を、バーナへ燃料を送る
燃料制御弁の出力に応じた差圧になるように前記ファン
の出力を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-mentioned problems, the combustion apparatus of the present invention includes a part of a venturi in the combustion air supply path between the burner and the fan, and a pressure difference between the part of the venturi. A pressure difference detection device is provided to detect the pressure difference, and a control unit is provided to control the output of the fan so that the pressure difference becomes a pressure difference corresponding to the output of a fuel control valve that sends fuel to the burner.
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
内圧の変化をファンから吐出された後のベンチュリ一部
の差圧の変化に換算し、燃料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
定に供給することとなる。According to the above configuration, the present invention converts a change in the internal pressure of the combustion chamber due to an external factor into a change in the differential pressure in a part of the venturi after the fuel is discharged from the fan, and calculates the differential pressure corresponding to the output of the fuel control valve. The fan is controlled so that the air necessary 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図は本発明の第１図における燃
焼装置の構成を示すものである。EXAMPLE Hereinafter, a combustion apparatus according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of the combustion apparatus in FIG. 1 of the present invention.
第１図において、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、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とファン５を接続した燃焼用空気の供給路５
ａにベンチュリー１１を設け、このベンチュリー１１の
前後に連通し差圧を検出する差圧検出装置１０を供給路
５ａに連結している。また、燃焼の制御方式は第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１２の信２）により、こ
の信号と設定温度を比較して制御部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、ベンチュ
リー１１の差圧になるように、ファン５の出力（回転力
）を制御部で決定し、この制御部７がらの信号でファン
５を回転させ、燃焼用空気を供給する。In FIG. 1, gas sent from a gas control valve 6 and air sent from a fan 5 are mixed, ejected from a burner 4, and combusted in a combustion chamber 3, and the combustion gas is sent to a heat exchanger 2 and an exhaust stack. 1. It is released outside the aircraft via the exhaust top 8. Also, a combustion air supply path 5 connecting the burner 4 and the fan 5 is provided.
A venturi 11 is provided in a, and a differential pressure detection device 10 that communicates before and after the venturi 11 and detects a differential pressure is connected to the supply path 5a. The combustion control method is shown in Figure 2.
It is as shown in Figure 3. That is, heat exchanger 2
The control unit 7 calculates the load by comparing this signal with the set temperature by the signal 2) of the hot water tap thermistor 12 installed at the outlet of the hot water.
The output (gas supply amount) of the gas control valve 6 is determined according to this load. On the other hand, the differential pressure detected by the differential pressure detection device 10 is
The control section determines the output (rotational force) of the fan 5 so that the differential pressure of the venturi 11 corresponds to the determined output of the gas control valve 6, and the fan 5 is controlled by a signal from the control section 7. Rotate to supply combustion air.
このように本実施例によれば、排気トップなどに風を受
けた場合、そして、熱交換器がスス等でフィン詰まりし
た場合など、ファンへの負荷が増し、その結果、ファン
風量が減少し燃焼不良が発生する。この様な場合に、本
実施例では、ファンとバーナ間の燃焼用空気の供給経路
にベンチュリーを設け、このベンチュリーの差圧を差圧
検出装置にて検出し、制御部により風量を差圧として換
算し、負荷に応じた風量（差圧）に保つようファンを制
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 this embodiment, when the exhaust top receives wind, or when the heat exchanger's fins are clogged with soot, etc., the load on the fan increases, and as a result, the fan air volume decreases. Poor combustion occurs. In such a case, in this embodiment, a venturi is provided in the combustion air supply path between the fan and the burner, the differential pressure of this venturi is detected by a differential pressure detection device, and the air volume is determined by the control unit as the differential pressure. Combustion can be stabilized by controlling the fan to maintain the air volume (differential pressure) according to the load.
発明の効果
以上のように本発明は、バーナへの燃焼用空気の供給路
に設けたベンチュリーを介して差圧を、差圧検出装置に
より検出し、この差圧を、バーナへ燃料を送る燃料制御
弁の出方に応じた差圧になるように前記ファンの出力を
制御する制御部を備えているもので、風量を差圧に換算
し、負荷に応じた風量（差圧）に常に一定に保つことが
できる。Effects of the Invention As described above, the present invention detects the differential pressure with a differential pressure detection device via a venturi provided in the supply path of combustion air to the burner, and uses this differential pressure to detect the differential pressure in the fuel supply path to the burner. It is equipped with a control unit that controls the output of the fan so that the differential pressure corresponds to the direction of the control valve.The air volume is converted into a differential pressure, and the air volume (differential pressure) is always constant according to the load. can be kept.
特に、強風時などの燃焼室の圧力変化に強く、耐強風性
能の向上をはかることができる。In particular, it is resistant to pressure changes in the combustion chamber during strong winds, and can improve strong wind resistance.
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、同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、１ｏ・・
・・・・差圧検出装置、１１・・・・・・ベンチュリー
。
代理人の氏名 弁理士 中 尾 敏 男 はが１名３−
１！！、定電
４−バーナ
５−ファン
６−ガス別御弁
１０−一息圧検田４！１
１１−−ベンチエソ−
菓１図
！
↓ ２
第２図
第３図
（ガスＭｆ！１１弁の田刀）
第４図
＋ ｉｔ
第５図FIG. 1 is a configuration diagram of a combustion device in an embodiment of the present invention;
2 and 3 are control system diagrams of the combustion device in the same embodiment, FIG. 4 is a configuration diagram showing a conventional combustion device, and FIG.
FIG. 6 is a control system diagram of a conventional combustion device. 3... Combustion chamber, 4... Burner, 5...
...Fan, 6...Gas control valve, 1o...
...Differential pressure detection device, 11...Venturi. Name of agent: Patent attorney Toshio Nakao, 1 person, 3-
1! ! , constant voltage 4 - burner 5 - fan 6 - gas separate control valve 10 - breath pressure tester 4! 1 11 - Bench Eso - 1 figure! ↓ 2 Figure 2 Figure 3 (Gas Mf! 11 valves) Figure 4 + it Figure 5
Claims (1)
焼室に生じた燃焼ガスにより加熱される負荷と、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、前記ファンへの燃焼用空気を
供給する経路に設けたベンチュリーと、前記ベンチュリ
ーの差圧を検出する、差圧検出装置と、この差圧検出装
置の検出した差圧を、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。A burner that burns gas and its combustion chamber; a load that is heated by the combustion gas generated in the combustion chamber; a fan that sends combustion air into the burner; and a gas control valve that supplies gas to the burner. A venturi provided in a path for supplying combustion air to the fan, and a differential pressure detection device that detects a differential pressure between the venturi, and a differential pressure detected by the differential pressure detection device is used as an output of the gas control valve. and a control section that controls the output of the fan so that the pressure difference is in accordance with the pressure difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62038482A JPS63204017A (en) | 1987-02-20 | 1987-02-20 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62038482A JPS63204017A (en) | 1987-02-20 | 1987-02-20 | Combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63204017A true JPS63204017A (en) | 1988-08-23 |
Family
ID=12526472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62038482A Pending JPS63204017A (en) | 1987-02-20 | 1987-02-20 | Combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63204017A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161212A (en) * | 1988-12-14 | 1990-06-21 | Harman Co Ltd | Fuel-burning equipment |
| EP0381438A2 (en) * | 1989-02-01 | 1990-08-08 | Foster Wheeler Energy Corporation | Fluidized bed reactor comprising an air flow measurement device |
| JPH05106832A (en) * | 1991-10-17 | 1993-04-27 | Osaka Gas Co Ltd | Combustion device |
| WO2009047249A2 (en) * | 2007-10-08 | 2009-04-16 | Cola S.R.L. | Device for measuring and adjusting the flow-rate of air supplied to the combustion chamber of pellet-fueled devices |
| ITMI20100632A1 (en) * | 2010-04-14 | 2011-10-15 | Tecno Cover S R L | METHOD AND APPARATUS FOR COMBUSTION CONTROL IN A BOILER OR STOVE AND BOILER OR STATION INCLUDING THE EQUIPMENT |
-
1987
- 1987-02-20 JP JP62038482A patent/JPS63204017A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161212A (en) * | 1988-12-14 | 1990-06-21 | Harman Co Ltd | Fuel-burning equipment |
| JPH0557484B2 (en) * | 1988-12-14 | 1993-08-24 | Harman Co Ltd | |
| EP0381438A2 (en) * | 1989-02-01 | 1990-08-08 | Foster Wheeler Energy Corporation | Fluidized bed reactor comprising an air flow measurement device |
| JPH05106832A (en) * | 1991-10-17 | 1993-04-27 | Osaka Gas Co Ltd | Combustion device |
| WO2009047249A2 (en) * | 2007-10-08 | 2009-04-16 | Cola S.R.L. | Device for measuring and adjusting the flow-rate of air supplied to the combustion chamber of pellet-fueled devices |
| WO2009047249A3 (en) * | 2007-10-08 | 2009-09-03 | Cola S.R.L. | Device for measuring and adjusting the flow-rate of air supplied to the combustion chamber of pellet-fueled devices |
| ITMI20100632A1 (en) * | 2010-04-14 | 2011-10-15 | Tecno Cover S R L | METHOD AND APPARATUS FOR COMBUSTION CONTROL IN A BOILER OR STOVE AND BOILER OR STATION INCLUDING THE EQUIPMENT |
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