JPS6170302A - Dust sensible-heat recovery device - Google Patents
Dust sensible-heat recovery deviceInfo
- Publication number
- JPS6170302A JPS6170302A JP18980284A JP18980284A JPS6170302A JP S6170302 A JPS6170302 A JP S6170302A JP 18980284 A JP18980284 A JP 18980284A JP 18980284 A JP18980284 A JP 18980284A JP S6170302 A JPS6170302 A JP S6170302A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- fluidized bed
- air
- pipe
- recovery device
- 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
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、流動床ボイラ、殊に流動床ボイラから排出さ
れるダストの顕熱を回収する装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fluidized bed boiler, in particular to a device for recovering sensible heat from dust discharged from a fluidized bed boiler.
従来の技術
従来、このようなダスト顕熱回収装置を備える流動床ボ
イラは全く存在していない。BACKGROUND OF THE INVENTION Hitherto, no fluidized bed boiler equipped with such a dust sensible heat recovery device exists.
発明の目的
本発明は、流動床ボイラではそのダスト量も多く、温度
の高いダストは冷却水で冷却する場合もあり、非常に不
経済であることに鑑み、そのダスト顕熱を効率よく回収
する事を考え、空気によりダストで流動床を形成させる
ようにするものである。Purpose of the Invention The present invention aims to efficiently recover the sensible heat of the dust in view of the fact that in a fluidized bed boiler, there is a large amount of dust, and the high temperature dust may be cooled with cooling water, which is extremely uneconomical. With this in mind, air is used to form a fluidized bed of dust.
目的を達成するための手段
本発明によるダスト顕熱回収装置は、流動床ボイラから
のダストを流動層下部に導入するダスト導入管と、流動
層上部からダストを抜出すダスト排出管とが接続され、
流動層へ空気を供給する空気分散板の下部風室に流動床
ボイラ用空気管が接続されなくとも、流動層上方の空間
と流動床ボイラ風室とを連通ずる空気管が接続されてい
る構成となっている。Means for Achieving the Object The dust sensible heat recovery device according to the present invention has a dust introduction pipe for introducing dust from a fluidized bed boiler into the lower part of the fluidized bed, and a dust discharge pipe for extracting dust from the upper part of the fluidized bed. ,
A configuration in which an air pipe communicating the space above the fluidized bed and the fluidized bed boiler air pipe is connected to the lower air chamber of the air distribution plate that supplies air to the fluidized bed, even if the air pipe for the fluidized bed boiler is not connected. It becomes.
実施例
以下図面を参照して本発明の一実施例について詳述する
。EXAMPLE Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
図面において〃、参照符号１は本発明によるダスト顕熱
回収装置を総括的に示し、この装置１は流動層２を包含
する。そして、この流動層の下部には管３を通して図示
しない流動床ボイラからのダストが導入され、一方その
上部からはダストが排出管４を通して抜出されるように
なっている。In the drawings, reference numeral 1 generally designates a dust sensible heat recovery device according to the invention, which device 1 includes a fluidized bed 2 . Dust from a fluidized bed boiler (not shown) is introduced into the lower part of the fluidized bed through a pipe 3, while dust is extracted from the upper part through a discharge pipe 4.
流動層２には流動床ボイラ用空気管５、風室６及び空気
分散板７を通して送風機（図示せず）からの空気８が送
り込まれ、この空気は流動層２を流動化するとともにそ
の内部のダストに直接に接触して予熱され、その後流動
層上方の空間９及び空気管１０を通して流動床ボイラ風
室（図示せず）Ｋ供給されるようになっている。この空
気管１゜の途中にサイクロンを介装することもできる。Air 8 from a blower (not shown) is fed into the fluidized bed 2 through an air pipe 5 for the fluidized bed boiler, a wind chamber 6, and an air distribution plate 7, and this air fluidizes the fluidized bed 2 and dissipates the inside of the bed. It is preheated by direct contact with the dust, and then supplied to a fluidized bed boiler wind chamber (not shown) K through a space 9 above the fluidized bed and an air pipe 10. A cyclone can also be inserted in the middle of this air pipe 1°.
また、流動層２の中には伝熱管１１が設置され、流動層
２内の高い熱伝達率を利用して効率よくボイラの給水を
予熱するようになっている。Further, a heat transfer tube 11 is installed in the fluidized bed 2, and the high heat transfer coefficient in the fluidized bed 2 is used to efficiently preheat the boiler feed water.
発明の効果
以上詳述したように、本発明によれば、流動床ボイラか
ら排出されるダクトにより流動床ボイラ風室に供給され
る空気を予熱するので、ダストの顕熱を有効に回収でき
るとともに、ボイラ効率を向上させることができ、しか
もダストを低い温度で排出できる。Effects of the Invention As detailed above, according to the present invention, since the air supplied to the fluidized bed boiler air chamber is preheated by the duct discharged from the fluidized bed boiler, the sensible heat of the dust can be effectively recovered. , boiler efficiency can be improved, and dust can be discharged at a lower temperature.
また、実施例に示した如く、流動層２内に伝熱管１１を
設置しておけば、ボイラの給水を同時に予熱できるので
、ボイラ率を一層向上させることができる。Further, as shown in the embodiment, if the heat exchanger tubes 11 are installed in the fluidized bed 2, the water supplied to the boiler can be preheated at the same time, so that the boiler efficiency can be further improved.
図面は、本発明によるダスト顕熱回収装置の一例を示す
図である。
１・・ダスト顕熱回収装置、２・・流動層、３・・ダス
ト導入管、４・・ダクト排出管、５・・流動床ボイラ用
空気管、６・・風室、７・・空気分散板、８・・空気、
９・・空間、１ｏ・・空気管Ｏ
（ほか７名）The drawing is a diagram showing an example of a dust sensible heat recovery device according to the present invention. 1. Dust sensible heat recovery device, 2. Fluidized bed, 3. Dust introduction pipe, 4. Duct discharge pipe, 5. Air pipe for fluidized bed boiler, 6. Wind chamber, 7. Air dispersion. Board, 8...Air,
9. Space, 1o. Air pipe O (7 others)
Claims (1)
ト導入管と、流動層上部からダストを抜出すダスト排出
管とが接続され、流動層へ空気を供給する空気分散板の
下部風室に流動床ボイラ用空気管が接続されるとともに
、流動層上方の空間と流動床ボイラ風室とを連通する空
気管が接続されていることを特徴とするダスト顕熱回収
装置。A dust introduction pipe that introduces dust from the fluidized bed boiler into the lower part of the fluidized bed is connected to a dust discharge pipe that extracts dust from the upper part of the fluidized bed, and the dust flows to the lower air chamber of the air distribution plate that supplies air to the fluidized bed. A dust sensible heat recovery device characterized in that an air pipe for a bed boiler is connected to the air pipe, and an air pipe that communicates a space above the fluidized bed with an air chamber of the fluidized bed boiler is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18980284A JPS6170302A (en) | 1984-09-12 | 1984-09-12 | Dust sensible-heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18980284A JPS6170302A (en) | 1984-09-12 | 1984-09-12 | Dust sensible-heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6170302A true JPS6170302A (en) | 1986-04-11 |
Family
ID=16247450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18980284A Pending JPS6170302A (en) | 1984-09-12 | 1984-09-12 | Dust sensible-heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6170302A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55165492A (en) * | 1979-06-09 | 1980-12-23 | Ebara Corp | Fluidized layer apparatus |
| JPS5885310A (en) * | 1981-11-13 | 1983-05-21 | ストラザ−ズ・ウエルズ・コ−ポレイシヨン | Combination cycle generating set with circulation type fluid bed heat transmission device |
-
1984
- 1984-09-12 JP JP18980284A patent/JPS6170302A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55165492A (en) * | 1979-06-09 | 1980-12-23 | Ebara Corp | Fluidized layer apparatus |
| JPS5885310A (en) * | 1981-11-13 | 1983-05-21 | ストラザ−ズ・ウエルズ・コ−ポレイシヨン | Combination cycle generating set with circulation type fluid bed heat transmission device |
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