JPH0455614A - Forced combustion device - Google Patents
Forced combustion deviceInfo
- Publication number
- JPH0455614A JPH0455614A JP2167535A JP16753590A JPH0455614A JP H0455614 A JPH0455614 A JP H0455614A JP 2167535 A JP2167535 A JP 2167535A JP 16753590 A JP16753590 A JP 16753590A JP H0455614 A JPH0455614 A JP H0455614A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- ignition
- gas
- burner
- rotation speed
- 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 76
- 230000003247 decreasing effect Effects 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 33
- 230000000694 effects Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/02—Starting or ignition cycles
-
- 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
- F23N2233/08—Ventilators at the air intake with variable speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- 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、バーナーに燃焼用空気を供給する送風機を備
えた強制燃焼装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a forced combustion device equipped with a blower that supplies combustion air to a burner.
［従来の技術］
例えば、強制燃焼式ガス機器では、一般に火移りが悪く
、また排気路が長い場合では、燃焼室内の内圧が高くな
って爆発着火が起こり易い。[Prior Art] For example, in forced combustion type gas appliances, flame transfer is generally poor, and if the exhaust path is long, the internal pressure in the combustion chamber becomes high and explosive ignition is likely to occur.
そのため、ガスバーナーへのガス供給路に比例弁を介在
させたものでは、点火動作時、送風機を一定の回転数で
回転させ、比例弁のみを制御してガス供給量を徐々に増
していくことにより緩点火を行う強制燃焼式ガス機器が
知られている。Therefore, when a proportional valve is interposed in the gas supply path to the gas burner, during ignition operation, the blower is rotated at a constant rotation speed, and only the proportional valve is controlled to gradually increase the gas supply amount. Forced combustion gas appliances that perform slow ignition are known.
また、ガス供給路に切替弁を備えたバイパス通路を設け
、切替弁でガス供給量を少なくするとともに、送風機の
回転数を下げて低インプットで点火を行うことにより緩
点火を行う強制燃焼式ガス機器等も知られている。In addition, a bypass passage equipped with a switching valve is installed in the gas supply path, and the switching valve reduces the gas supply amount, and the forced combustion type gas that performs slow ignition by lowering the rotation speed of the blower and igniting with low input. Equipment etc. are also known.
［発明が解決しようとする課題］
しかし、強制燃焼装置は、排気路の排気口が屋外に設置
されるので排気口がら風が入り込むことがあり、その場
合、上記の技術を採用したものでは、点火動作時に送風
機は比較的低い回転数で作動しているので少し強い風が
吹くだけで排気口が閉塞状態となり、その結果、点火動
作時に爆発着火が起き易いという不具合かある。[Problems to be Solved by the Invention] However, in forced combustion devices, the exhaust port of the exhaust path is installed outdoors, so wind may enter through the exhaust port. Since the blower operates at a relatively low rotation speed during the ignition operation, even a slightly strong blow of wind can cause the exhaust port to become blocked, resulting in a problem where explosions and ignition are likely to occur during the ignition operation.
本発明の目的は、排気路の排気口から入り込む風の影響
を受けることが少なく、しかも著しいコストの増大を伴
わず容易に緩点火を行うことができる強制燃焼装置の提
供にある。An object of the present invention is to provide a forced combustion device that is less affected by the wind that enters from the exhaust port of the exhaust path and that can easily perform slow ignition without significantly increasing costs.
［課題を解決するための手段］
上記目的を達成するため、本発明は、燃焼室内に配され
燃焼を行うバーナーと、バーナー燃焼時、燃焼量に応じ
た燃焼回転数で回転し、前記燃焼室にバーナーの燃焼用
空気を供給する送風機と、前記バーナーへの燃料供給、
バーナーの点火、前記送風機の制御を司る燃焼制御装置
とを備える強制燃焼装置において、前記燃焼制御装置は
、点火動作の時、前記送風機の回転数を高回転数から低
回転数へ漸減させ、バーナー着火時点で前記燃焼回転数
にする構成を採用した。[Means for Solving the Problems] In order to achieve the above object, the present invention includes a burner disposed within a combustion chamber to perform combustion, and a burner that rotates at a combustion rotation speed corresponding to the combustion amount during burner combustion, and a blower for supplying combustion air to the burner; and a fuel supply to the burner;
In a forced combustion device comprising a combustion control device that controls ignition of a burner and control of the blower, the combustion control device gradually reduces the rotation speed of the blower from a high rotation speed to a low rotation speed during an ignition operation, and controls the burner. A configuration was adopted in which the combustion rotation speed is set to the above-mentioned combustion speed at the time of ignition.
［作用および発明の効果］
（作用）
燃焼制御装置は、点火動作の時、送風機の回転数を高回
転数から低回転数へ漸減させ、エアーリ・ソチの状態か
らガスリッチの状態に徐々に変化させているので爆発着
火することなく穏やかに火移りする。[Operation and effects of the invention] (Operation) During ignition operation, the combustion control device gradually reduces the rotation speed of the blower from high rotation speed to low rotation speed, and gradually changes from an air-rich state to a gas-rich state. Because of this, the fire spreads gently without causing an explosion or ignition.
（効果）
石炭、石油系のガスを使用しても爆発着火が起こらず、
緩点火を行うことができる。(Effect) No explosion or ignition occurs even when using coal or petroleum-based gas.
Can perform slow ignition.
排気路が長い場合でも、安全に点火できる。Even if the exhaust path is long, it can be safely ignited.
点火動作の時、送風機の回転数を高回転数から低回転数
へ漸減させており、排気口に強い風が吹いている場合は
高回転数時に点火火移りし、弱い風、風が吹かない場合
は低回転数で火移りする。During ignition operation, the rotation speed of the blower is gradually reduced from high rotation speed to low rotation speed, and if there is strong wind blowing at the exhaust port, the ignition will ignite at high rotation speed, and if there is a weak wind or no wind blows. If so, the flame will transfer at low rotation speed.
このなめ、はとんど風の影響を受けずに点火できる。This type of fire can be ignited without being affected by wind.
更に、バイパス通路、切替弁等が不要であるので低コス
トである。Furthermore, since bypass passages, switching valves, etc. are not required, the cost is low.
［実施例］ 本発明の一実施例を第１図〜第３図に基づき説明する。[Example] An embodiment of the present invention will be described based on FIGS. 1 to 3.
第３図に示すごとく、強制燃焼装置としての、ガス強制
燃焼式風呂装置Ａは、燃焼ハウジング１内に燃焼を行う
ガスバーナー２を配し、燃焼用ファン３で燃焼ハウジン
グ１にガスバーナー２の燃焼用空気３０を供給している
。また、このカス強制燃焼式風呂装置Ａは、ガスバーナ
ー２への定量のガス供給、ガスバーナー２の点火、燃焼
用ファン３の制御を司る燃焼制御装置４とを備える。As shown in FIG. 3, the gas forced combustion bath device A, which serves as a forced combustion device, has a gas burner 2 that performs combustion arranged in a combustion housing 1, and a combustion fan 3 that moves the gas burner 2 into the combustion housing 1. Combustion air 30 is supplied. The scum forced combustion bath device A also includes a combustion control device 4 that controls the supply of a fixed amount of gas to the gas burner 2, the ignition of the gas burner 2, and the control of the combustion fan 3.
燃焼ハウジング１は、下方に燃焼用空気３０の導入口１
１を、上方に燃焼排ガスを外部に排出する排気口１２を
それぞれ設けている。また、燃焼ハウジング１内のガス
バーナー２の上方には熱交換器１３が配設されている。The combustion housing 1 has an inlet 1 for combustion air 30 at the bottom.
1 and an exhaust port 12 for discharging combustion exhaust gas to the outside. Further, a heat exchanger 13 is disposed above the gas burner 2 within the combustion housing 1.
ガスバーナー２は、炎を形成するバーナー群２１と、バ
ーナー群２１の下方に位置し噴出口２２を有するノズル
管２３とからなる。また、このガスバーナー２にはガス
供給管２０を通して１３Ａガスｇが供給される。The gas burner 2 includes a burner group 21 that forms a flame, and a nozzle pipe 23 that is located below the burner group 21 and has a spout 22 . Further, 13A gas g is supplied to this gas burner 2 through a gas supply pipe 20.
燃焼用ファン３はターボ型の羽根を備える。The combustion fan 3 includes turbo-type blades.
燃焼制御装置４は、水流スイッチ４１、サーミスター４
２、元電磁弁４３、ガバナ４４（ガスの定量供給用）、
主電磁弁４５、点火器４６、フレームロッド４７、ポン
プ４８と、これらを開削する電子ユニット４９とからな
る。The combustion control device 4 includes a water flow switch 41 and a thermistor 4.
2. Original solenoid valve 43, governor 44 (for quantitative gas supply),
It consists of a main solenoid valve 45, an igniter 46, a frame rod 47, a pump 48, and an electronic unit 49 for excavating these.
つぎに、燃焼制御装置４の電子ユニット４つの作動を第
１図、第２図とともに説明する。Next, the operations of the four electronic units of the combustion control device 4 will be explained with reference to FIGS. 1 and 2.
（１）追焚運転スイッチ（図示せず）を投入する。(1) Turn on the additional firing operation switch (not shown).
（２）ポンプ４８が回り、浴槽（図示せず）内の湯５１
は吸引される。(2) The pump 48 rotates and the hot water 51 in the bathtub (not shown)
is attracted.
（３）水流スイッチ４１が閉成し、燃焼用ファン３が燃
焼回転数に相当する高回転数（３０００回転／分）で回
転する（位置３１）。(3) The water flow switch 41 is closed, and the combustion fan 3 rotates at a high rotation speed (3000 rpm) corresponding to the combustion rotation speed (position 31).
なお、６Ｃガスの場合は高回転数（２８００回転／回転
位置３４）。In addition, in the case of 6C gas, the rotation speed is high (2800 rotations/rotation position 34).
（４）点火器４６をスパークさせ、元電磁弁４３、主電
磁弁４５を開く。(4) Spark the igniter 46 and open the original solenoid valve 43 and main solenoid valve 45.
（５）３秒後に、燃焼用ファン３が低回転数（２０００
回転／分）程度になる様に、燃焼用ファン３の回転数を
漸減させる（位１３２）。(5) After 3 seconds, the combustion fan 3 will rotate at a low rotation speed (2000
The rotation speed of the combustion fan 3 is gradually decreased so that the combustion fan 3 becomes approximately (rotations/minute) (position 132).
なお、６Ｃガスの場合は、３秒後に、燃焼用ファン３が
燃焼回転数に相当する低回転数（２５０Ｏ回転／分）に
なる様に、燃焼用ファン３の回転数を漸減させる（位置
３５）。In addition, in the case of 6C gas, the rotation speed of the combustion fan 3 is gradually decreased so that after 3 seconds the combustion fan 3 reaches a low rotation speed (250 rotations/min) corresponding to the combustion rotation speed (position 35). ).
（６）炎検知が成されると、点火器４６のスパークを停
止し、燃焼用ファン３を燃焼回転数（３０００回転／分
）に戻す（位置３３）。(6) When a flame is detected, the spark of the igniter 46 is stopped and the combustion fan 3 is returned to the combustion rotation speed (3000 rotations/minute) (position 33).
なお、６Ｃガスの場合は、炎検知が成されると、点火器
４６のスパークを停止し、燃焼用ファン３を燃焼回転数
（２５００回転／分）に落とす（位置３６）。In the case of 6C gas, when a flame is detected, the spark of the igniter 46 is stopped and the combustion fan 3 is lowered to the combustion rotation speed (2500 rotations/minute) (position 36).
ガス強制燃焼式風呂装置Ａの効果を述べる。The effects of gas forced combustion bath device A will be described.
（ア）点火時に、燃焼用ファン３の回転数を漸減させる
ことにより、ソフト点火と同様な点火作動が実現でき、
点火不良や爆発点火が防止でき、また、排気口から多少
の風が入り込んでも爆発点火しない。(a) By gradually reducing the rotation speed of the combustion fan 3 during ignition, an ignition operation similar to soft ignition can be achieved;
It can prevent ignition failure and explosive ignition, and even if some wind enters from the exhaust port, explosive ignition will not occur.
（イ）電子ユニット４９による燃焼用ファン３の回転数
制御のみの変更で済むので、ガス強制燃焼式風呂装置Ａ
の製造コストが著しく増大しない。(B) Gas forced combustion bath device A only needs to be changed to control the rotation speed of the combustion fan 3 by the electronic unit 49.
does not significantly increase manufacturing costs.
なお、上記実施例では、ガスバーナー２へ定量のガスを
供給するものを示したが、燃焼時、ガス量を可変させる
比例弁を設けたものでも良い。In the above embodiment, a fixed amount of gas is supplied to the gas burner 2, but a proportional valve may be provided to vary the amount of gas during combustion.
さらに、上記実施例では、ガスを燃料とするものを示し
たが、灯油等を燃料とするものでも良い。Further, in the above embodiments, the fuel is gas-based, but it may be fueled with kerosene or the like.
第１図は本発明の一実施例を示すガス強制燃焼式風呂装
置において、ガスが１３Ａの場合の、時間と風呂送風機
回転数との関傷を示すグラフ、第２図は同様にガスが６
Ｃの場合のグラフである。
第３図はその風呂装！の構造説明図である。FIG. 1 is a graph showing the relationship between time and bath blower rotation speed when the gas is 13 A in a gas forced combustion bath device showing an embodiment of the present invention, and FIG.
This is a graph for case C. Figure 3 is the bath outfit! FIG.
Claims (1)
燃焼時、燃焼量に応じた燃焼回転数で回転し、前記燃焼
室にバーナーの燃焼用空気を供給する送風機と、 前記バーナーへの燃料供給、バーナーの点火、前記送風
機の制御を司る燃焼制御装置と を備える強制燃焼装置において、 前記燃焼制御装置は、点火動作の時、前記送風機の回転
数を高回転数から低回転数へ漸減させ、バーナー着火時
点で前記燃焼回転数にすることを特徴とする強制燃焼装
置。[Scope of Claims] 1) A burner arranged in a combustion chamber to perform combustion, and a blower that rotates at a combustion rotation speed corresponding to the amount of combustion during burner combustion and supplies combustion air for the burner to the combustion chamber; In a forced combustion device comprising a combustion control device that controls fuel supply to the burner, ignition of the burner, and control of the blower, the combustion control device changes the rotation speed of the blower from a high rotation speed to a low rotation speed during an ignition operation. A forced combustion device characterized in that the rotational speed is gradually decreased to the combustion rotational speed at the time of ignition of the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2167535A JPH0455614A (en) | 1990-06-26 | 1990-06-26 | Forced combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2167535A JPH0455614A (en) | 1990-06-26 | 1990-06-26 | Forced combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0455614A true JPH0455614A (en) | 1992-02-24 |
Family
ID=15851499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2167535A Pending JPH0455614A (en) | 1990-06-26 | 1990-06-26 | Forced combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0455614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014081133A (en) * | 2012-10-16 | 2014-05-08 | Rinnai Corp | Heating cooker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557736U (en) * | 1978-06-28 | 1980-01-18 | ||
| JPS6062509A (en) * | 1983-09-16 | 1985-04-10 | Ebara Corp | Method of ignition for burner |
| JPS6484020A (en) * | 1987-09-26 | 1989-03-29 | Noritz Corp | Combustion control device |
| JPH0252920A (en) * | 1988-08-18 | 1990-02-22 | Toto Ltd | Exhaust fan rotating speed controller for hot water supply apparatus |
-
1990
- 1990-06-26 JP JP2167535A patent/JPH0455614A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557736U (en) * | 1978-06-28 | 1980-01-18 | ||
| JPS6062509A (en) * | 1983-09-16 | 1985-04-10 | Ebara Corp | Method of ignition for burner |
| JPS6484020A (en) * | 1987-09-26 | 1989-03-29 | Noritz Corp | Combustion control device |
| JPH0252920A (en) * | 1988-08-18 | 1990-02-22 | Toto Ltd | Exhaust fan rotating speed controller for hot water supply apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014081133A (en) * | 2012-10-16 | 2014-05-08 | Rinnai Corp | Heating cooker |
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