JPH029244B2 - - Google Patents
Info
- Publication number
- JPH029244B2 JPH029244B2 JP9233083A JP9233083A JPH029244B2 JP H029244 B2 JPH029244 B2 JP H029244B2 JP 9233083 A JP9233083 A JP 9233083A JP 9233083 A JP9233083 A JP 9233083A JP H029244 B2 JPH029244 B2 JP H029244B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- factory
- reheater
- pressure turbine
- steam
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は、工場送気の流量、圧力、温度等の条
件を、広い負荷範囲にわたつて確保できるように
した工場用再熱ボイラに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reheat boiler for a factory that is capable of ensuring conditions such as flow rate, pressure, and temperature of air supplied to the factory over a wide load range.
各種の製造業における工場では、電力と蒸気を
同時に必要とすることが多く、そのため非再熱ボ
イラと背圧タービンを組み合せたものを原動機と
して使用することが多かつた。ところで、通常電
力デマンドと蒸気デマンドは変動するものであ
り、非再熱ボイラと背圧タービンとを一組しか備
えていない場合には両者の要求を同時に満足させ
ることはできない。そのため従来は、非再熱ボイ
ラと背圧タービンの組合せを複数組備えるか又
は、電力の不足分は買電によつて補うことによ
り、要求に応えるようにしていたため、効率の悪
いプラントとなつていた。 Factories in various manufacturing industries often require electricity and steam at the same time, so a combination of a non-reheat boiler and a backpressure turbine was often used as the prime mover. By the way, power demand and steam demand usually fluctuate, and if only one set of a non-reheat boiler and a back pressure turbine is provided, it is not possible to satisfy both demands at the same time. For this reason, in the past, the demand was met by installing multiple sets of non-reheat boilers and back pressure turbines, or by making up for electricity shortages by purchasing electricity, resulting in inefficient plants. Ta.
本発明は、上気のような事情から、電力デマン
ドと蒸気デマンドの要求を同時に満足させること
のできる効率の良い工場用再熱ボイラを提供する
ことを目的としてなされたものである。 The present invention has been made for the purpose of providing an efficient reheat boiler for factory use that can simultaneously satisfy the demand for electric power and the demand for steam due to the above-mentioned circumstances.
以下本発明の一実施例について図面を参照して
詳細に説明する。 An embodiment of the present invention will be described in detail below with reference to the drawings.
図は本発明に係る工場用再熱ボイラを備えた発
電プラントの一実施例を示す系統図である。この
図において、１はボイラであり、２はボイラ１か
らの主蒸気によつて駆動される高圧タービン、３
は高圧タービン２に連結された高圧タービン発電
機である。４及び５は夫々ボイラ１に設けた低温
再熱器及び高温再熱器であり、両者は再熱器中間
ヘツダ６にて連結されている。この低温再熱器４
には、高圧タービン２を出た蒸気が導入されて過
熱され、過熱された蒸気の一部は中間ヘツダ６か
ら工場送気として送気管７へ導出される。８は送
気管７に設けられた減温気である。 The figure is a system diagram showing an embodiment of a power generation plant equipped with a factory reheat boiler according to the present invention. In this figure, 1 is a boiler, 2 is a high-pressure turbine driven by main steam from boiler 1, and 3 is a high-pressure turbine driven by main steam from boiler 1.
is a high-pressure turbine generator connected to the high-pressure turbine 2. 4 and 5 are a low-temperature reheater and a high-temperature reheater provided in the boiler 1, respectively, and both are connected by a reheater intermediate header 6. This low temperature reheater 4
The steam leaving the high-pressure turbine 2 is introduced and superheated, and a part of the superheated steam is led out from the intermediate header 6 to the air supply pipe 7 as factory air. 8 is a temperature reducing air provided in the air pipe 7.
高温再熱器５の出口側は圧力調整弁９を介して
低圧タービン１０に接続されており、高温再熱器
５で過熱された蒸気によつて低圧タービン１０を
駆動する。１１は低圧タービン１０に連結された
低圧タービン発電機である。１２は低圧タービン
１０にて仕事をした蒸気及びドレンが導入される
復水器、１３は復水ポンプである。１４は復水ポ
ンプ１３により復水器１２から供給される復水を
加熱する低圧ヒータ、１５は脱気器、１６は給水
ポンプ、１７は高温ヒータであり、ある程度加熱
された給水がボイラ１へと供給されるように循環
系が形成されている。 The outlet side of the high temperature reheater 5 is connected to a low pressure turbine 10 via a pressure regulating valve 9, and the low pressure turbine 10 is driven by the steam superheated in the high temperature reheater 5. 11 is a low pressure turbine generator connected to the low pressure turbine 10. 12 is a condenser into which the steam and condensate that have worked in the low-pressure turbine 10 are introduced, and 13 is a condensate pump. 14 is a low-pressure heater that heats the condensate supplied from the condenser 12 by the condensate pump 13; 15 is a deaerator; 16 is a water supply pump; 17 is a high-temperature heater; A circulatory system is formed so that it is supplied with
なお、送気管７には工場送気圧力計１８が設け
られていて、その検出圧力によつて圧力調整弁９
の開閉を制御している。また、同じく送気管７に
工場送気温度計１９が設けられていて、その検出
温度によつてスプレイ流量制御弁２０を介して減
温器８を制御している。 Note that the air supply pipe 7 is provided with a factory air supply pressure gauge 18, and the pressure regulating valve 9 is adjusted based on the detected pressure.
controls the opening and closing of the Similarly, a factory air thermometer 19 is provided in the air pipe 7, and the desuperheater 8 is controlled via a spray flow rate control valve 20 based on the detected temperature.
次に動作を説明する。 Next, the operation will be explained.
ボイラ１を出た主蒸気は高圧タービン２を駆動
することにより、高圧タービン発電機３にて発電
を行なう。高圧タービン２で仕事をした蒸気は、
低温再熱器４で過熱された後、再熱器中間ヘツダ
６に入る。そして、再熱器中間ヘツダ６から一部
の蒸気が取り出され、減温器８にて所望の温度に
されて工場送気として送気される。この温度は工
場送気温度計１９によつて設定される。一方、再
熱器中間ヘツダ６から残りの蒸気は高温再加熱器
５へ導入されて規定の温度まで昇温された後、圧
力調整弁９を経て低圧タービン１０へ入る。従つ
て、低圧タービン１０を駆動して低圧タービン発
電機１１により発電を行なう。低圧タービン１０
からの排気は復水器１２へ導入され、以降ボイラ
１へ給水として供給される過程は公知の再熱サイ
クルと同様であり、説明は省略する。 The main steam leaving the boiler 1 drives a high-pressure turbine 2 to generate electricity in a high-pressure turbine generator 3. The steam that has done work in the high pressure turbine 2 is
After being superheated in the low temperature reheater 4, it enters the reheater intermediate header 6. Then, a part of the steam is taken out from the reheater intermediate header 6, brought to a desired temperature in the attemperator 8, and sent as factory air. This temperature is set by factory air thermometer 19. On the other hand, the remaining steam from the reheater intermediate header 6 is introduced into the high-temperature reheater 5 and heated to a specified temperature, and then enters the low-pressure turbine 10 via the pressure regulating valve 9. Therefore, the low pressure turbine 10 is driven and the low pressure turbine generator 11 generates electricity. low pressure turbine 10
The process in which the exhaust gas is introduced into the condenser 12 and thereafter supplied to the boiler 1 as water supply is the same as in a known reheat cycle, and a description thereof will be omitted.
上述のように、本発明では、低温再熱器４と高
温再熱器５との中間から工場送気を取り出せるよ
うになつており、この場合工場送気の要求される
蒸気温度条件に合せて、任意の温度での取り出し
点を決定することができる。すなわち、要求温度
条件よりも高めの温度で取り出して、減温器８に
よつて必要温度まで下げるようにする。一方、工
場送気の圧力条件は、工場送気圧力計１８からの
信号にもとづき、高温再熱器５出口に設置した圧
力調整弁９により、所望の条件に適合するように
制御される。 As described above, in the present invention, factory air can be taken out from between the low-temperature reheater 4 and the high-temperature reheater 5, and in this case, the factory air can be taken out according to the steam temperature conditions required for the factory air supply. , the extraction point at any temperature can be determined. That is, the sample is taken out at a temperature higher than the required temperature condition, and the temperature is lowered to the required temperature using the desuperheater 8. On the other hand, the pressure conditions of the factory air supply are controlled to meet desired conditions by the pressure regulating valve 9 installed at the outlet of the high temperature reheater 5 based on the signal from the factory air supply pressure gauge 18.
以上詳述したように本発明によれば、広い負荷
範囲にわたつて工場送気の条件が確保できるとと
もに、再熱サイクルを採用することによりプラン
トの効率も大幅に向上させることができるという
大きな効果を奏する工場用再熱ボイラが提供され
る。 As detailed above, the present invention has the great effect of ensuring factory air supply conditions over a wide load range, and also significantly improving plant efficiency by adopting a reheat cycle. A reheat boiler for factory use is provided.
なお、本発明は上述の一実施例に限定されるこ
となく、要旨を逸脱しない範囲内で種々変形して
実施できることは云うまでもない。 It goes without saying that the present invention is not limited to the above-mentioned embodiment, but can be implemented with various modifications without departing from the scope of the invention.
図は本発明に係る工場用再熱ボイラを備えた発
電プラントの一実施例を示す系統図である。
１……ボイラ、２，１０……タービン、３，１
１……発電機、４……低温再熱器、５……高温再
熱器、６……再熱器中間ヘツダ、７……送気管、
８……減温器、９……圧力調整弁、１８……工場
送気圧力計、１９……工場送気温度計。
The figure is a system diagram showing an embodiment of a power generation plant equipped with a factory reheat boiler according to the present invention. 1...Boiler, 2,10...Turbine, 3,1
1... Generator, 4... Low temperature reheater, 5... High temperature reheater, 6... Reheater intermediate header, 7... Air pipe,
8... Temperature reducer, 9... Pressure regulating valve, 18... Factory air pressure gauge, 19... Factory air temperature gauge.
Claims (1)
工場送気を取出す配管を設け、同配管に減温器を
設けるとともに、再熱器出口配管に圧力調整弁を
設けたことを特徴とする工場用再熱ボイラ。1. A header is provided in the middle of the reheater, a pipe is provided to take out factory air from the header, a desuperheater is provided in the pipe, and a pressure regulating valve is provided in the reheater outlet pipe. Factory reheat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9233083A JPS59219603A (en) | 1983-05-27 | 1983-05-27 | Reheating boiler for factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9233083A JPS59219603A (en) | 1983-05-27 | 1983-05-27 | Reheating boiler for factory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59219603A JPS59219603A (en) | 1984-12-11 |
| JPH029244B2 true JPH029244B2 (en) | 1990-03-01 |
Family
ID=14051377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9233083A Granted JPS59219603A (en) | 1983-05-27 | 1983-05-27 | Reheating boiler for factory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59219603A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776601B2 (en) * | 1985-03-06 | 1995-08-16 | 三菱重工業株式会社 | Soda recovery boiler |
| JPH0735722B2 (en) * | 1985-12-27 | 1995-04-19 | 株式会社東芝 | Turbine controller |
| DE69002758T2 (en) * | 1989-01-24 | 1993-12-16 | Ahlstroem Oy | SYSTEM AND METHOD FOR CONTROLLING THE TEMPERATURE OF THE STEAM IN CIRCULATING FLUID BEDS. |
| JP5148535B2 (en) * | 2009-03-11 | 2013-02-20 | 株式会社東芝 | Steam turbine equipment |
| JP5637808B2 (en) | 2010-10-21 | 2014-12-10 | 株式会社東芝 | Carbon dioxide recovery method and carbon dioxide recovery steam power generation system |
| CN103696816B (en) * | 2013-12-15 | 2016-05-25 | 河南省电力勘测设计院 | A kind of resuperheat low capacity split shaft Turbo-generator Set |
-
1983
- 1983-05-27 JP JP9233083A patent/JPS59219603A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59219603A (en) | 1984-12-11 |
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