JPH0448101A - Combination type boiler - Google Patents
Combination type boilerInfo
- Publication number
- JPH0448101A JPH0448101A JP15847290A JP15847290A JPH0448101A JP H0448101 A JPH0448101 A JP H0448101A JP 15847290 A JP15847290 A JP 15847290A JP 15847290 A JP15847290 A JP 15847290A JP H0448101 A JPH0448101 A JP H0448101A
- Authority
- JP
- Japan
- Prior art keywords
- boiler
- waste heat
- water
- steam
- heat boiler
- 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
- 239000002918 waste heat Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims description 18
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000003303 reheating Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は各種の炉、原動機等より排出される排熱を回収
する廃熱ボイラにおいて、発生した蒸気の分離及び廃熱
ボイラへ供給される循環水を貯留するドラムとして、燃
焼器を有する炉筒煙管式ボイラの胴を共用してなる廃熱
ボイラと炉筒煙管式ボイラとを組合せた組合せ型ボイラ
に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a waste heat boiler that recovers waste heat discharged from various furnaces, prime movers, etc., and the generated steam is separated and supplied to the waste heat boiler. The present invention relates to a combination boiler that combines a waste heat boiler and a fire-and-fire-tube boiler that share the barrel of a fire-and-fire-tube boiler with a combustor as a drum for storing circulating water.
近年各種原動機より排出される排熱を回収して蒸気を発
生させ、一方においてタービ／を回転せしめて発電機よ
り電気を得るという熱電併Ｍ装置、いわゆるコーゼネレ
ーションシステム（Ｃｏｇｅｎｅｒａｔｉｏｎ ｇ７ｓ
ｔｅｍ ）の普及にはめざましいものがある。In recent years, the so-called cogeneration system (Cogeneration G7S) is a combined heat and power system that recovers waste heat from various types of prime movers to generate steam, while rotating a turbine and generating electricity from a generator.
The spread of tem) is remarkable.
従来から蒸気負荷の要求のあるユーザーにおいては、排
熱回収装置として廃熱ボイラにょシ得られる蒸気をプロ
セスに使用することによって省エネルギーの効果が達成
されていた。Traditionally, users who require a steam load have achieved energy savings by using the steam obtained from a waste heat boiler as an exhaust heat recovery device in the process.
シカし乍ら、廃熱ボイラによりて回収される量には限度
があや、不足分の蒸気を補うためには廃熱ボイラとは別
に燃焼器を有するボイラを別設したり、ガスタービンの
排ガスの場合には、排ガス中の残存Ｏ３量が高いため、
排ガスダクト中にバーナを取付けて追い焚きすることに
よって後段に設置された廃熱ボイラよりの熱回収量をふ
やして対応するなどの方法がとられていた。However, there is a limit to the amount of steam that can be recovered by a waste heat boiler. In this case, because the amount of residual O3 in the exhaust gas is high,
Measures have been taken to counter this by installing a burner in the exhaust gas duct to provide additional heat, thereby increasing the amount of heat recovered from the waste heat boiler installed in the latter stage.
〔発明が解決しようとする！ｌｌ［
従来の廃熱ボイラにおける廃熱利用Ｋ１１ｌては、
イ 廃熱ボイラと燃焼器を有するボイラとを個々に使用
されるが故に両ボイ２の据付はスペースが必要であるこ
とと、ボイラの制御関係がそれぞれのボイラに相当する
だけの数を備え付ける必要があり、複雑となると共に、
経済的ではない。[Invention tries to solve! ll[ Waste heat utilization in conventional waste heat boilers It is necessary to install the same number of control relations as each boiler, which makes it complicated and
It's not economical.
（ロ）追い焚き付きの場合は、バーナに使用される素材
の材質の関係から追い焚き後の燃焼ガスの温度は１００
０〜１１００℃が限度であジ、発生する蒸気量にはたと
え追い焚きバーナをつけても限界があり、それ以上の要
求がある場合には別のボイラの設置が必要となった。(b) In the case of reheating, the temperature of the combustion gas after reheating is 100% due to the material used for the burner.
The limit is 0 to 1100°C, and even if a reheating burner is installed, there is a limit to the amount of steam that can be generated, and if more is required, it is necessary to install another boiler.
（ハ）追い焚きバーナの価格が高く、大型容量のものに
ついては利点があるが、小容量のものについてはイニシ
ャルコストが高くなり経済性に欠ける点がある。(c) Reheating burners are expensive, and while large-capacity burners have advantages, small-capacity burners have a high initial cost and are uneconomical.
に）廃熱ボイラ側からみると、追い焚きバーナをつけて
ガス温度を上けて、ボイラ入口部に拡大伝熱面を構成さ
せると熱負荷が上昇し、循環不良となるなどの理由から
、設備が大きくなったり、ベアー管もしくはベアー管と
拡大伝熱管との組合せなどを考えねどならず、全体とし
て大型となる。(b) From the perspective of the waste heat boiler, if a reheating burner is attached to raise the gas temperature and an enlarged heat transfer surface is formed at the boiler inlet, the heat load will increase and poor circulation will occur. The equipment becomes larger, and it is not necessary to consider the combination of bare tubes or bare tubes and enlarged heat transfer tubes, and the overall size becomes large.
（ホ）上記（イ）〜に）は新設ボイラに関するものであ
るが、例えは既設の燃焼器を有するボイラなどがあれば
廃熱ボイラを別設した場合、複数（へ）燃焼器を有する
ボイラとしては種々のものがあるが、水管ボイラの場合
水管群以外に気水分離ドラムを別に必要とし、またその
大きさに余裕がなく容易に気水分離に対して対応すると
いうことが困難である。特に既設ボイラとの組合せは不
可能といってよい。(e) The above (a) to) relate to a new boiler, but for example, if there is a boiler with an existing combustor, if a waste heat boiler is installed separately, or (e) a boiler with multiple combustors. There are various types of water tube boilers, but in the case of water tube boilers, a separate steam and water separation drum is required in addition to the water tube group, and there is not enough room in the size of the drum, making it difficult to easily accommodate steam and water separation. . In particular, it can be said that combination with existing boilers is impossible.
などの種々な問題点が数多くあった。There were many problems such as:
本発明は、上記従来のボイラのこれら問題点を解決する
ことを目的とするものである。The present invention aims to solve these problems of the conventional boiler mentioned above.
本発明は、上記の目的を達成するために燃焼器を有する
炉筒煙管式ボイラと各種排熱の回収をする廃熱ボイラと
を組合せて組合せ型ボイラとなし、廃熱ボイラにて発生
して蒸気を気水分離するドラムとして該燃焼器を有する
炉筒煙管式ボイラの胴本体に廃熱ボイラの罐水側及び蒸
ｆｉｌｌをそれぞれ連結し、廃熱ボイラ用の気水ドラム
を無くして、該廃熱ボイラの罐水及び循環水を該炉筒煙
管式ボイラの胴及び廃熱ボイラに循環せしめるようにな
し、廃熱ボイラから回収される蒸気量以上の負荷要求に
対しては、該炉筒煙管式ボイラに備えられ大燃焼器を稼
動せしめて、要求量を確保する組合せ型ボイラに関する
ものである。In order to achieve the above object, the present invention combines a fire-and-tube boiler with a combustor and a waste heat boiler that recovers various types of waste heat to form a combination boiler. The can water side and the steam fill of the waste heat boiler are respectively connected to the body of the furnace-and-fire-tube boiler which has the combustor as a drum for separating steam from water and water, and the air-water drum for the waste heat boiler is eliminated. The canned water and circulating water of the waste heat boiler are circulated to the shell of the furnace tube boiler and the waste heat boiler, and when the load request exceeds the amount of steam recovered from the waste heat boiler, the furnace tube This invention relates to a combination boiler that operates a large combustor installed in a smoke tube boiler to ensure the required amount.
本発明に使用のボイラは標準化されたバーナを装備した
炉筒煙管式ボイ２である。これは使用機器が標準化され
ているため市場性に富み安価にできると共に、急を要す
る場合、その品物の入手が容易である。また炉筒煙管式
ボイラであるため胴が大きく且つ外胴には殆んど何も付
着しておらず、罐水側堰シ出し、へ蒸気側の接続が容易
である一方、廃熱ボイラはシンプルに構成された伝熱管
及びケーシングから構成されたものであり、該炉筒煙管
式ボイラの循環により目的とする蒸気を得ることが可能
となる。The boiler used in the present invention is a fire and smoke tube type boiler 2 equipped with a standardized burner. Since the equipment used is standardized, it is highly marketable and inexpensive, and if it is urgently needed, it is easy to obtain the item. In addition, since it is a furnace and smoke tube boiler, the shell is large and there is almost nothing attached to the outer shell, making it easy to take out the canal water side weir and connect the steam side to the waste heat boiler. It is composed of a simply constructed heat exchanger tube and a casing, and it is possible to obtain the desired steam by circulating the furnace and smoke tube boiler.
廃熱ボイラと燃焼器を有する炉筒煙管式ボイラとの循環
の関係は、自然循環型（第２図）、又は強制循環型（第
１図）の何れでもよい。その設置スペース又は回収シス
テムによっては使い分けることができる。The circulation relationship between the waste heat boiler and the fire-tube boiler having a combustor may be either a natural circulation type (FIG. 2) or a forced circulation type (FIG. 1). It can be used depending on the installation space or collection system.
次に図面によって本発明を説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の組合せ型ボイラの一実施例の概略断面
図、第２図は自然循環型組合せ型ボイラの他の一実施例
の概略断面図を示す。FIG. 1 is a schematic sectional view of one embodiment of the combination boiler of the present invention, and FIG. 2 is a schematic sectional view of another embodiment of the natural circulation combination boiler.
（１） 排ガス （２） 廃熱ボイラ （３）エ
コノマイザ−（４） 燃焼器を有する炉筒煙管式ボイ
ラ （ｉ） バーナ（６） 煙管（７）循環ボン
デ 問 降水連絡管（９） 給水管 叫 気水連絡
管 （Ｕ） 蒸気管である。(1) Exhaust gas (2) Waste heat boiler (3) Economizer (4) Furnace and smoke tube boiler with combustor (i) Burner (6) Smoke tube (7) Circulation bonder Question: Downfall connecting pipe (9) Water supply pipe Steam/water communication pipe (U) This is a steam pipe.
第１図において、排ガスよりの熱量を廃熱ボイラ（２）
によって吸収して廃熱ボイラ（２）から炉筒煙管式ボイ
ラ（４）の胴と接続した気水連終管＠）を介して炉筒煙
管式ボイラへ気水混合物が送られる。In Figure 1, the amount of heat from the exhaust gas is transferred to the waste heat boiler (2).
The steam and water mixture is absorbed from the waste heat boiler (2) and sent to the furnace and smoke tube boiler via a steam and water connection pipe connected to the shell of the furnace and smoke tube boiler (4).
一方循環水は炉筒煙管式ボイラから取シ出された降水連
絡管（８）から循環ポンプ（７）によって強制的に廃熱
ボイラ（２）へ供給され、炉筒煙管式ボイラと廃熱ボイ
ラとの間で循環を行うことになる。On the other hand, the circulating water is forcibly supplied to the waste heat boiler (2) by the circulation pump (7) from the downfall connecting pipe (8) taken out from the furnace and smoke tube boiler, and There will be a cycle between
この場合、廃熱ボイラよシの熱量が不足する場合、バー
ナ（Ｋ＋によって燃料を燃焼せしめて炉筒煙管式ボイラ
からも蒸気を発生、廃熱ボイラよシの蒸気と合わせて蒸
気管（１１）より取り出すようにする。In this case, if the amount of heat in the waste heat boiler is insufficient, the burner (K+) combusts the fuel and generates steam from the furnace and smoke tube boiler. Try to take it out more.
第２図は循環ポンプを備えていない本発明の組合せ型の
システムで、炉筒煙管式ボイラ内罐水が、廃熱ボイラと
のヘッド差で降水連絡管（８）を介して自然循環する場
合を示すものである。Figure 2 shows a combination type system of the present invention that is not equipped with a circulation pump, where the can water in the furnace and smoke tube boiler is naturally circulated through the downfall connecting pipe (8) due to the head difference with the waste heat boiler. This shows that.
本発明の効果をまとめると下記の通りである。 The effects of the present invention are summarized as follows.
（イ）廃熱ボイラの気水分離として、燃焼器を有する炉
筒煙管式ボイラの胴を利用することによって廃熱ボイラ
の熱量だけでは不足する場合、炉筒煙管式ボイラのバー
ナよシの燃料を燃焼せしめてこの不足分を補い、蒸気負
荷の要求のあるプロセスにスムースに蒸気をＰＩ＆する
ことができる。(b) When the heat capacity of the waste heat boiler alone is insufficient by using the shell of a fire-and-fire-tube boiler with a combustor for steam-water separation in the waste-heat boiler, the burner of the fire-and-fire-tube boiler is used as fuel. This deficiency can be compensated for by burning the steam, allowing steam to be smoothly transferred to processes that require a steam load.
（ロ））廃熱ボイラには気水分離器としてのドラムを有
せず、炉筒煙管式ボイラの胴と共用する管理が著しく容
易である。(b)) The waste heat boiler does not have a drum as a steam/water separator, and it is extremely easy to manage as it is shared with the shell of the furnace and smoke tube boiler.
ｒ−＋ 燃焼器を有する炉筒煙管式ボイラ用の燃料は
、＃５原動機等に使用されている燃料は勿論、それ以外
の燃料でも対后が可能である。The fuel for the fire-and-fire tube boiler having an r-+ combustor can be not only the fuel used in the #5 prime mover, but also other fuels.
に）廃熱ボイラは単なる熱交換器となシ、普通のボイラ
のような付属設備は炉筒煙管式ボイラ側に付設されれば
足シ、廃熱ボイラとしての価格が安くなり経済的である
。2) The waste heat boiler is not just a heat exchanger, but if the attached equipment like a normal boiler is attached to the furnace and smoke tube boiler side, the price of the waste heat boiler will be lower and it will be more economical. .
（ホ） 炉筒煙管式ボイラを採用しているが故にその特
徴をフルに発揮できる。(E) Because it uses a smoke tube boiler, its features can be fully demonstrated.
（へ）廃熱ボイラにトラブルが生じても縁を切ることに
よｐ、多少要求負荷量よりは落ちるが、炉筒煙管式ボイ
ラとしての機能は発揮することができ、生産に及ぼす影
響が少なくてすむ。(f) Even if trouble occurs with the waste heat boiler, by cutting off the connection, the load will be slightly lower than the required load, but it will be able to perform its function as a furnace and smoke tube boiler, and there will be less impact on production. I'll try it.
第１図は、本発明の組合せ型ボイラの一実施例の概略断
面図、第２図は自然循環型の組合せ型ボイラの他の一実
施例の概略断面図を示す。FIG. 1 is a schematic sectional view of one embodiment of the combination boiler of the present invention, and FIG. 2 is a schematic sectional view of another embodiment of the natural circulation combination boiler.
Claims (1)
をする廃熱ボイラとを組合せて組合せ型ボイラとなし、
廃熱ボイラにて発生した蒸気を気水分離するドラムとし
て該燃焼器を有する炉筒煙管式ボイラの胴本体に廃熱ボ
イラの■水側及び蒸気側をそれぞれ連結し、廃熱ボイラ
用の気水ドラムを無くして、該廃熱ボイラの■水及び循
環水を該炉筒煙管式ボイラの胴及び廃熱ボイラに循環せ
しめるようにしたことを特徴とする組合せ型ボイラ。 ２、廃熱ボイラから回収される蒸気量以上の負荷要求に
対して、該炉筒煙管式ボイラに備えられた燃焼器を稼動
せしめることを特徴とする請求項１記載の組合せ型ボイ
ラ。[Claims] 1. A combination boiler is created by combining a fire-and-tube boiler with a combustor and a waste heat boiler that recovers various types of waste heat;
■The water side and the steam side of the waste heat boiler are connected to the body of the furnace and smoke tube boiler that has the combustor as a drum that separates the steam generated in the waste heat boiler into steam and water. 1. A combination boiler characterized in that a water drum is eliminated and water and circulating water of the waste heat boiler are circulated through the body of the furnace and smoke tube boiler and the waste heat boiler. 2. The combination boiler according to claim 1, wherein the combustor provided in the furnace and smoke tube boiler is operated in response to a load request greater than the amount of steam recovered from the waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15847290A JPH0448101A (en) | 1990-06-15 | 1990-06-15 | Combination type boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15847290A JPH0448101A (en) | 1990-06-15 | 1990-06-15 | Combination type boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0448101A true JPH0448101A (en) | 1992-02-18 |
Family
ID=15672494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15847290A Pending JPH0448101A (en) | 1990-06-15 | 1990-06-15 | Combination type boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763303A (en) * | 1993-08-27 | 1995-03-07 | Yoshiharu Tachibana | System for utilizing combustion exhaust gas of boiler |
| CN103063048A (en) * | 2013-01-29 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Horizontal evaporative cooling flue for steelmaking electric furnace |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6323504B2 (en) * | 1980-01-30 | 1988-05-17 | Hitachi Seisakusho Kk |
-
1990
- 1990-06-15 JP JP15847290A patent/JPH0448101A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6323504B2 (en) * | 1980-01-30 | 1988-05-17 | Hitachi Seisakusho Kk |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763303A (en) * | 1993-08-27 | 1995-03-07 | Yoshiharu Tachibana | System for utilizing combustion exhaust gas of boiler |
| CN103063048A (en) * | 2013-01-29 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Horizontal evaporative cooling flue for steelmaking electric furnace |
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