JPS63215839A - Furnace gas pressure turbine of blast furnace - Google Patents
Furnace gas pressure turbine of blast furnaceInfo
- Publication number
- JPS63215839A JPS63215839A JP4771587A JP4771587A JPS63215839A JP S63215839 A JPS63215839 A JP S63215839A JP 4771587 A JP4771587 A JP 4771587A JP 4771587 A JP4771587 A JP 4771587A JP S63215839 A JPS63215839 A JP S63215839A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pressure turbine
- furnace
- blast furnace
- valve
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 21
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は高炉排出ガスからの動力エネルギ回収の増大を
図り得る高炉の炉頂圧タービンに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a top pressure turbine for a blast furnace that can increase the recovery of power energy from blast furnace exhaust gas.
高炉の排出ガス（以下ガスと略称する）からエネルギを
回収するに際し、高炉が突発的に短時間、休風した場合
、炉頂圧タービンにガスを導入する遮断弁および調速弁
を閉じて炉頂圧タービンを停止させ、高炉の復旧後に再
起動させている。When recovering energy from blast furnace exhaust gas (hereinafter referred to as "gas"), if the blast furnace is suddenly stopped for a short period of time, the shutoff valve and speed regulating valve that introduce gas to the furnace top pressure turbine are closed and the furnace is closed. The top pressure turbine was shut down and restarted after the blast furnace was restored.
しかし、炉頂圧タービンの再起動から併入までには最低
１５分はかかる。少なくとも、その間は発電を休止して
いるので、その間のガスのエネルギをロスしているとい
う問題がある。However, it takes at least 15 minutes from restarting the furnace top pressure turbine to joining. At least during that time, power generation is suspended, so there is a problem in that gas energy is lost during that time.
高炉が短時間休風する場合、つまりすぐ立ち上がりの見
込みがある場合、ゼロ回転からスタートするより定格か
らスタートする方が昇速する時間が短縮される。If the blast furnace is going to rest for a short time, that is, if it is expected to start up soon, starting from the rated speed will take less time to increase the speed than starting from zero rotation.
そこで、本発明者は、炉頂圧タービンの立ち上がりが短
縮できれば、その短縮された分だけ発電量が得すること
に着目し、本発明に至ったのである。Therefore, the inventor of the present invention focused on the fact that if the start-up time of the furnace top pressure turbine can be shortened, the amount of power generated can be increased by the amount of the shortened start-up time, and has arrived at the present invention.
Ｃ発明の目的〕
すなわち、本発明は上記の点に着目してなされたもので
あり、高炉が休風し、そして再復旧する際における炉頂
圧タービンの動力エネルギの回収量の増大を図ることを
目的としたものである。C. Purpose of the invention] That is, the present invention has been made with attention to the above points, and an object thereof is to increase the amount of power energy recovered by the furnace top pressure turbine when the blast furnace is shut down and then restarted. The purpose is to
上記の目的を達成するため、本発明の炉頂圧タービンは
、高炉排出ガスをセプタン弁と炉頂圧タービンとに並列
に導く高炉排ガス回路に、高炉の休風時にセプタン弁の
下流側から高炉排ガスをこの炉頂圧タービンの上流側に
循環可能な開閉弁を有するガス循環回路を設けることに
より構成される。In order to achieve the above object, the furnace top pressure turbine of the present invention connects the blast furnace exhaust gas from the downstream side of the septan valve to the blast furnace exhaust gas circuit that guides the blast furnace exhaust gas in parallel to the septan valve and the furnace top pressure turbine. It is constructed by providing a gas circulation circuit having an on-off valve capable of circulating exhaust gas upstream of this furnace top pressure turbine.
（実施例〕 以下図面を参照して本発明の詳細な説明する。(Example〕 The present invention will be described in detail below with reference to the drawings.
図面は本発明の一実施例における高炉の炉頂圧タービン
の系統図であり、高炉ｌの炉頂から排出された高炉排出
ガス（ここでもガスと略称する）から動力エネルギを回
収するため、ガスをダストコレクタ２、そして２基のベ
ンチュリスクラバ３及び４を通過させて清浄にした後、
セプタン弁５と炉頂圧タービン６とに並列に導入し、発
電機１２を駆動し発電することにより動力エネルギを回
収している。The drawing is a system diagram of a top pressure turbine of a blast furnace in an embodiment of the present invention. After being cleaned by passing through a dust collector 2 and two venturi scrubbers 3 and 4,
It is introduced in parallel to the septan valve 5 and the furnace top pressure turbine 6, and the power energy is recovered by driving the generator 12 and generating electricity.
なお、この炉頂圧タービン６は高炉１の正常の作動時の
ガスの最大流量を流しうるちのであり、高炉１の非正常
作動時に炉頂圧タービン６をガス流れから切り離すため
の遮断弁７及び調速弁８が設けられている。Note that this furnace top pressure turbine 6 allows the maximum flow rate of gas to flow during normal operation of the blast furnace 1, and there is a cutoff valve 7 for separating the furnace top pressure turbine 6 from the gas flow during abnormal operation of the blast furnace 1. and a speed regulating valve 8 are provided.
そこで本発明では、高炉１の休風時にセプタン弁５の下
流側からガスを炉頂圧タービン６の上流側に流し、矢印
Ｒで示すごとく循環可能な開閉弁９を有する循環回路１
０を設けている。Therefore, in the present invention, when the blast furnace 1 is at rest, gas flows from the downstream side of the septan valve 5 to the upstream side of the furnace top pressure turbine 6, and a circulation circuit 1 has an on-off valve 9 that can circulate as shown by arrow R.
0 is set.
以上の構成からなる高炉１のガスにより駆動される炉頂
圧タービン６において、高炉ｌの短期休風時には、遮断
弁７及び調速弁８は閉じ、ガスは全量セプタン弁５に流
れるが、炉頂圧タービン６は解列せずに開閉弁９を開放
し、ガスをガス循環回路ｌＯに循環させて炉頂圧タービ
ン６によりかき回し損失分の冷却ガスを矢印Ｒで示す循
環ガスとして使用する。In the furnace top pressure turbine 6 which is driven by the gas from the blast furnace 1 having the above configuration, when the blast furnace 1 is in short-term wind down, the shutoff valve 7 and the regulating valve 8 are closed and the entire amount of gas flows to the septan valve 5, but the furnace The top pressure turbine 6 opens the on-off valve 9 without disengaging the line, and the gas is circulated through the gas circulation circuit 10, and the cooling gas lost in stirring by the furnace top pressure turbine 6 is used as circulating gas as indicated by the arrow R.
この場合、ガスを冷却する必要があれば、ガス循環回路
１０の炉頂圧タービン６の下流にて水噴霧冷却１１を行
なうものとする。In this case, if it is necessary to cool the gas, water spray cooling 11 is performed downstream of the furnace top pressure turbine 6 in the gas circulation circuit 10.
上記のように、本発明の高炉の炉頂圧タービンを採用す
れば、高炉が短時間休風して再復旧する際の動力エネル
ギの回収量の増大をはなることができ、エネルギ有効利
用による省エネルギ効果が増大するという利点がある。As mentioned above, if the blast furnace top pressure turbine of the present invention is adopted, it is possible to increase the amount of motive energy recovered when the blast furnace is restarted after a short period of wind shutdown, and to achieve effective energy utilization. This has the advantage of increasing the energy saving effect.
４4
図面は本発明の一実施例における高炉の炉頂圧タービン
の系統図である。
１・・・高炉、５・・・セプタン弁、６・・・炉頂圧タ
ービン、９・・・開閉弁、１０・・・ガス循環回路。The drawing is a system diagram of a top pressure turbine of a blast furnace in one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Blast furnace, 5...Septane valve, 6...Furnace top pressure turbine, 9...Opening/closing valve, 10...Gas circulation circuit.
Claims (1)
導く高炉排ガス回路に、高炉の休風時にセプタン弁の下
流側から高炉排ガスを該炉頂圧タービンの上流側に循環
可能な開閉弁を有するガス循環回路を設けた高炉の炉頂
圧タービン。The blast furnace exhaust gas circuit that leads the blast furnace exhaust gas to the septan valve and the furnace top pressure turbine in parallel is equipped with an on-off valve that can circulate the blast furnace exhaust gas from the downstream side of the septan valve to the upstream side of the furnace top pressure turbine when the blast furnace is at rest. A blast furnace top pressure turbine equipped with a gas circulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4771587A JPS63215839A (en) | 1987-03-04 | 1987-03-04 | Furnace gas pressure turbine of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4771587A JPS63215839A (en) | 1987-03-04 | 1987-03-04 | Furnace gas pressure turbine of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63215839A true JPS63215839A (en) | 1988-09-08 |
Family
ID=12783004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4771587A Pending JPS63215839A (en) | 1987-03-04 | 1987-03-04 | Furnace gas pressure turbine of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63215839A (en) |
-
1987
- 1987-03-04 JP JP4771587A patent/JPS63215839A/en active Pending
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