JPS5920925B2 - Ventilation system for boiler capable of single-lung operation - Google Patents
Ventilation system for boiler capable of single-lung operationInfo
- Publication number
- JPS5920925B2 JPS5920925B2 JP50086320A JP8632075A JPS5920925B2 JP S5920925 B2 JPS5920925 B2 JP S5920925B2 JP 50086320 A JP50086320 A JP 50086320A JP 8632075 A JP8632075 A JP 8632075A JP S5920925 B2 JPS5920925 B2 JP S5920925B2
- Authority
- JP
- Japan
- Prior art keywords
- duct
- air
- seal
- gas
- exhaust gas
- 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
Links
Classifications
-
- 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
- Incineration Of Waste (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Air Supply (AREA)
Description
【発明の詳細な説明】
本発明は、片肌運転可能なボイラの通風系統に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation system for a boiler that can be operated on one side.
一般に、５００を以上の水の蒸発量を有する加圧式ボイ
ラは、２系統の通風系を持つている。Generally, a pressurized boiler having an evaporation rate of water of 500 or more has two ventilation systems.
す。なわち、第１図に示すように、ボイラ１は、その両
側にそれぞれ２および３で指示する送風管路を持つ。そ
れぞれの送風管路２、３には、送風機４、５および空気
加圧器６、Ｔを有する。一方、一対の排ガスダクト８、
９がボイラ１に連結されている。vinegar. That is, as shown in FIG. 1, the boiler 1 has air ducts designated by 2 and 3 on both sides thereof, respectively. Each of the air ducts 2, 3 has a blower 4, 5 and an air pressurizer 6, T. On the other hand, a pair of exhaust gas ducts 8,
9 is connected to the boiler 1.
また、前記送風管路２、３の間はコモンダクト１０によ
つて連結されている。各排ガスダクト８、９は、図示省
略の電気集塵器等へ連結されている。このように構成さ
れた２つの通風系統は同時に併合運転されるが、例えば
送風管路３側の送風機５或いは空気加熱器□が故障した
場合には、この管路３に設けられた、２重ダンパ１１お
よびダンパ１２を閉じる。Further, the air ducts 2 and 3 are connected by a common duct 10. Each of the exhaust gas ducts 8 and 9 is connected to an electric precipitator or the like (not shown). The two ventilation systems configured in this way are operated simultaneously, but if, for example, the blower 5 or air heater □ on the side of the ventilation pipe 3 breaks down, the double Damper 11 and damper 12 are closed.
と同時にコモンダクト１０から管路３側へ空気を送つて
ボイラ１から故障系統へ逆流する高温ガスをエアーシー
ルすることが行なわれる。しかし、シール空気が十分で
ないのが普通であシ、また高温に耐えるダンパがいまだ
開発されていないため、高温ガスの逆流を十分に阻止し
得ない。これがために故障系統の送風機５、空気加熱器
□および電気集塵機等を損傷、悪化させるなどの欠点が
ある。結局、通風系の片肺運転が出来ないという実情に
なつている。本発明は、以上のような従来の欠点を除去
したものである。At the same time, air is sent from the common duct 10 to the pipe line 3 side to air-seal the high-temperature gas flowing back from the boiler 1 to the failed system. However, because there is usually not enough sealing air and dampers that can withstand high temperatures have not yet been developed, backflow of hot gas cannot be sufficiently prevented. This has the disadvantage of damaging or deteriorating the blower 5, air heater □, electrostatic precipitator, etc. in the failed system. In the end, the reality is that it is no longer possible to operate a ventilation system with one lung. The present invention eliminates the above-mentioned conventional drawbacks.
以下に図面に示す実施例とともに本発明の詳細を説明す
る。第２図は、本発明の一実廁滑リを説明するものであ
る。The details of the present invention will be explained below along with examples shown in the drawings. FIG. 2 explains the practical implementation of the present invention.
図中第１図と同−部分は同一符号をもつて示し、その説
明は省略する。図において１３は送風管路２、３間を連
結するコモンダクトである。In the figure, the same parts as in FIG. 1 are designated by the same reference numerals, and the explanation thereof will be omitted. In the figure, 13 is a common duct that connects the air ducts 2 and 3.
このコモンダクト１３は、排ガスダクト８、９を連絡す
るシールガスダクト１４とシールガスダクト１５によつ
て連結されている。シールガスダクト１４は、空気加熱
器６、Ｔよりもボイラ１番ヤに位置する。排ガスダクト
８、９には、それぞれ空気加熱器６、７をはさんで二重
ダンパ１６、１７が取付けられている。まプこ、前記シ
ールダクト１４には、シールダクト１５との連結部をは
さんでダンパ１８、１９が取付けられている。以上のよ
うな構成のもとに、例えば送風管路３側の送風機５或い
は空気加熱器７が故障した場合を想定しよう。This common duct 13 is connected by a seal gas duct 14 and a seal gas duct 15 that communicate the exhaust gas ducts 8 and 9. The seal gas duct 14 is located closer to the boiler than the air heater 6, T. Double dampers 16 and 17 are attached to the exhaust gas ducts 8 and 9, respectively, with air heaters 6 and 7 sandwiched therebetween. Dampers 18 and 19 are attached to the seal duct 14 across the connecting portion with the seal duct 15. Let us assume, for example, that the blower 5 or the air heater 7 on the side of the blower duct 3 breaks down based on the above configuration.
故障した系に卦ける空気加熱器７の空気側、すなわち、
管路３側には、故障と同時に送風機５の出口側に接続さ
れたコモンダクト１３よシ空気が送られ、加熱空気の逆
流を防止する。なお、この故障時には図中下側の系統の
ダンパ１１，１２，１６，１７は閉じている。一方、空
気加熱器７のガス側、すなわち排ガスダクト９側は、２
重ダンパ１６，１７を閉じることによつて、ガスリーク
が最小とされる。The air side of the air heater 7 in the failed system, i.e.
Air is sent to the pipe line 3 side through a common duct 13 connected to the outlet side of the blower 5 at the same time as the failure occurs, thereby preventing backflow of heated air. In addition, at the time of this failure, the dampers 11, 12, 16, and 17 of the lower system in the figure are closed. On the other hand, the gas side of the air heater 7, that is, the exhaust gas duct 9 side,
By closing the heavy dampers 16, 17, gas leaks are minimized.
このとき、コモンダクト１３よシ空気加熱器７のガス側
入口にもシールダクト１５，１４を介して空気を送Ｖ１
ガスリークを制限し、或いはリークガスをこのシールガ
スによつて希釈して故障側系統の空気加熱器７の排ガス
リークの温度を低く保つている。従つて、故障側の通風
系統が停止しても、例えば１系統の負荷が５０％ずつで
あつた場合、残りの１系統で５０％の片肺運転が十分に
可能となる。以上の説明から明らかなように、本発明に
よれば、２系統の通風系統を有するボイラにおいて、両
系統の送風管路間を空気加熱器の入口側において連結す
るコモンダクトと、両系統の排ガスダクトを空気加熱器
のガス側入口において連結しているシールダクトとの間
をもう一本のシールダクトで連結し、各系統の空気加熱
器のガス側の出入口に二重ダンパを設けてあるため、一
方の系統が故障した場合には、ダンパを閉じて加熱ガス
を遮断するとともに、シールガスダクトよりシール空気
を送つてリークガスを希釈し温度を下げることが出来る
。At this time, air is sent from the common duct 13 to the gas side inlet of the air heater 7 via the seal ducts 15 and 14.
The temperature of the exhaust gas leak from the air heater 7 of the failed system is kept low by limiting gas leaks or diluting the leak gas with this sealing gas. Therefore, even if the ventilation system on the faulty side stops, for example, if each system has a load of 50%, the remaining system can fully operate at 50% with one lung. As is clear from the above description, according to the present invention, in a boiler having two ventilation systems, a common duct connecting the ventilation pipes of both systems on the inlet side of the air heater, and an exhaust gas of both systems. The duct is connected to the seal duct connected at the gas side inlet of the air heater by another seal duct, and a double damper is installed at the gas side inlet and exit of the air heater of each system. If one system fails, the damper is closed to cut off the heating gas, and sealing air is sent through the sealing gas duct to dilute the leaked gas and lower the temperature.
従つて、従来のように空気加熱器や送風機、電気集塵機
などを損傷することなく片肺運転が可能となり、ボイラ
運転の安定性、永続性、およびメンテナンスの自由が得
られる。Therefore, single-lung operation is possible without damaging the air heater, blower, electrostatic precipitator, etc. as in the conventional case, and stability and permanence of boiler operation and freedom of maintenance can be obtained.
第１図は従来の通風系統の説明図、第２図は本発明の一
実施例の通風系統の説明図である。
１・・・ボイラ、２，３・・・送風管路、４，５・・・
送風機、６，７・・・空気加熱器、８，９・・・排ガス
ダクト、１０，１３・・・コモンダクト、１１，１２，
１６，１７・・・二重ダンパ、１４，１５・・・シール
ダクト、１８，１９・・・ダンパ。FIG. 1 is an explanatory diagram of a conventional ventilation system, and FIG. 2 is an explanatory diagram of a ventilation system according to an embodiment of the present invention. 1... Boiler, 2, 3... Air duct, 4, 5...
Blower, 6, 7... Air heater, 8, 9... Exhaust gas duct, 10, 13... Common duct, 11, 12,
16, 17... double damper, 14, 15... seal duct, 18, 19... damper.
Claims (1)
有する加圧式ボイラにおいて、各系統の空気管路を送風
機出口側において連結するコモンダクトと、各系統の排
ガスダクトを空気加熱器のガス側入口において連結する
シールダクトと、前記コモンダクトとこのシールダクト
間を連結するもう一本のシールダクトと、前記各系統の
排ガスダクトにおいて空気加熱器のガス側出口および入
口に設けられた二重ダンパを備えた構成を特徴とする片
肺運転可能なボイラの通風系統。1 In a pressurized boiler that has two ventilation systems consisting of a blower pipe and an exhaust gas duct, a common duct connects the air pipes of each system at the blower outlet side, and a common duct connects the exhaust gas duct of each system to the gas side inlet of the air heater. a seal duct connecting the common duct to the seal duct, another seal duct connecting the common duct to the seal duct, and a double damper provided at the gas side outlet and inlet of the air heater in the exhaust gas duct of each system. A ventilation system for a boiler capable of single-lung operation, characterized by its configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50086320A JPS5920925B2 (en) | 1975-07-15 | 1975-07-15 | Ventilation system for boiler capable of single-lung operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50086320A JPS5920925B2 (en) | 1975-07-15 | 1975-07-15 | Ventilation system for boiler capable of single-lung operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5210922A JPS5210922A (en) | 1977-01-27 |
| JPS5920925B2 true JPS5920925B2 (en) | 1984-05-16 |
Family
ID=13883532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50086320A Expired JPS5920925B2 (en) | 1975-07-15 | 1975-07-15 | Ventilation system for boiler capable of single-lung operation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5920925B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5976585B2 (en) * | 2013-03-28 | 2016-08-23 | 株式会社神戸製鋼所 | Heating furnace and heating furnace control method |
| JP6400559B2 (en) * | 2015-11-20 | 2018-10-03 | 株式会社マツダ | Regenerative combustion furnace |
-
1975
- 1975-07-15 JP JP50086320A patent/JPS5920925B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5210922A (en) | 1977-01-27 |
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