KR20010057399A - The coal flow control for circulati on fluidized bed combustion boiler - Google Patents
The coal flow control for circulati on fluidized bed combustion boiler Download PDFInfo
- Publication number
- KR20010057399A KR20010057399A KR1019990060613A KR19990060613A KR20010057399A KR 20010057399 A KR20010057399 A KR 20010057399A KR 1019990060613 A KR1019990060613 A KR 1019990060613A KR 19990060613 A KR19990060613 A KR 19990060613A KR 20010057399 A KR20010057399 A KR 20010057399A
- Authority
- KR
- South Korea
- Prior art keywords
- coal
- speed
- amount
- boiler
- conveyer
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
본 발명은 유동층 연소보일러의 석탄량 제어장치에 관한 것으로, 상세하게는 유동층 연소 보일러에 주 연료로 사용하는 석탄의 양을 스팀(Steam) 사용량의 증감 발생시 제어 회로에 의하여 자동으로 석탄 이송장치의 속도를 조절하여 스팀(Steam) 발생을 위한 연료인 석탄을 보일러에 투입시키는 장치에 관한 것이다.The present invention relates to a coal amount control device of a fluidized bed combustion boiler, and more particularly, the speed of the coal transfer device is automatically controlled by a control circuit when the amount of coal used as the main fuel in the fluidized bed combustion boiler increases or decreases. The present invention relates to an apparatus for inputting coal, which is a fuel for generating steam, to a boiler.
기존에는 사용되고 있는 방사선 동위원소(-Ray Source)를 사용하여 석탄 두께를 측정하여 석탄 이송장치 속도를 제어하였으나, 방사선 동위원소(-Ray Source) 사용시 수입품으로서 통관 업무시 관련 면허 소지자를 채용하여야 수입이 가능하고 취급 및 유지 보수시 일정교육 이수자 및 면허 소지자에 한하여 취급이 가능한 관련법규로 규정되어 있으므로 방사선 동위원소(-Ray Source) 설비의 문제 발생시 보일러의 안정적인 운전이 어렵다는 단점이 있다.Radiation isotopes that are currently being used ( Coal feeder speed was controlled by measuring the thickness of coal using -Ray Source. -Ray Source) As import goods, it is required to hire relevant license holders for customs clearance, and import is possible. -Ray Source) It has a disadvantage that it is difficult to operate the boiler stably when a problem occurs in the facility.
상기와 같은 문제점을 해결하기 위한 본 발명의 목적은 유동층 보일러의 주연료인 석탄량 조절용 제어 회로에 사용되고 있는 방사선 동위원소(-Ray Source)를 사용하지 않고 기계장치와 전, 계장 신호를 조합하여 석탄 이송장치를스팀(Steam) 변화량에 따라 조절토록 함으로써 방사선 동위원소(-Ray Source) 사용시 관련법규에 따라 부수적으로 발생하는 문제점을 해소하여 보일러의 안정적인 운전확보가 가능토록 한 회로장치를 제공하는데 있다.An object of the present invention for solving the above problems is the radioactive isotope used in the control circuit for controlling the amount of coal which is the main fuel of the fluidized bed boiler ( By using a combination of mechanical, electrical and instrumentation signals without using a Ray Source, the coal feeder can be adjusted according to the steam variation. -Ray Source) It is to provide a circuit device that can ensure the stable operation of the boiler by solving the problems caused by the related laws when using.
도 1은 본 발명 유동층 연소 보일러의 석탄 이송장치의 속도 제어를 도시한 계통도.1 is a system diagram showing the speed control of the coal feeder of the present invention fluidized bed combustion boiler.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
(11): 조정 스크랩퍼(Adjustable scraper)(11): Adjustable scraper
(12): 스팀 변화량 감지기(Flow transmitter)(12): Flow transmitter
(13): 모터 속도 제어기 유니트(13): motor speed controller unit
(14) : 이송 장치 속도 감지기14: feeder speed detector
(l5): 석탄 이송장치 모터(l5): coal feeder motor
(16): 함수 변환기(16): function converter
상기한 바와 같은 목적을 달성하고 종래의 결점을 제거하기 위한 과제를 수행하는 본 발명의 실시예인 구성과 그 작용을 첨부도면에 연계시켜 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings, the configuration and the operation of the embodiment of the present invention to achieve the object as described above and to perform the task for eliminating the conventional drawbacks.
도 1은 본 발명 유동층 연소 보일러의 석탄 이송장치의 속도 제어를 도시한 계통도인데, 본 발명은 유동층 연소 보일러에 주연료로 사용하는 석탄량을 스팀(Steam) 사용량의 증감 발생시 제어회로에 의하여 자동으로 석탄 이송장치의 속도를 조절하여 스팀(Steam) 발생을 위한 연료인 석탄(Coal)을 보일러에 투입시키는 장치로 그 구성은 석탄 이송장치 모터(15)에 의해 구동되는 석탄 이송장치(Conveyor) 초반부에 설치되어 석탄 사일로(Coal silo)로부터 공급되는 석탄(Coal)의 두께가 이송장치 내에서 일정하게 되도록 조정하는 조정 스크랩퍼(Adjustable scraper, 11)와,1 is a system diagram showing the speed control of the coal transport apparatus of the fluidized bed combustion boiler of the present invention, the present invention is automatically used by the control circuit when the amount of coal used as the main fuel in the fluidized bed combustion boiler increases or decreases Coal, a fuel for steam generation, is injected into the boiler by adjusting the speed of the coal transporting device. The configuration is at the beginning of the coal transporting device driven by the coal transporting motor 15. An adjustable scraper 11 installed to adjust the thickness of the coal supplied from the coal silo to be constant in the conveying apparatus;
현재 석탄의 양을 개량하기 위하여 석탄 이송 장치의 속도를 감지하는 스피드(Speed) 감지기(l4)와,A speed detector (l4) for detecting the speed of the coal conveying apparatus to improve the amount of coal present,
스피드 감지기(14)에 의하여 감지된 석탄 이송장치 속도를 이용하여 석탄량으로 변환하도록 초기 보일러 시운전시 이송장치에 따른 석탄량을 산출한 값을 가진 F(X) 변환 함수를 내장한 함수 변환기(16)와, 함수 변환기(16)에 의하여 변환된 값을 보일러의 스팀 요구 변화량을 나타내는 스팀 변화량 감지기(l2)의 신호와 비교하여 석탄 이송장치 모터(15)의 속도를 제어하는 모터 속도제어 유니트(13)에 전달되어 모터의 속도를 증감함으로서 보일러 스팀 증감에 따른 석탄 투입량을 일정하게 유지하는 제어장치 설비기(DCS)로 구성되어 보일러의 안정적인 제어를 실현한다.Function converter (16) with a built-in F (X) conversion function having a value for calculating the amount of coal according to the feeder during initial boiler commissioning to convert the coal quantity using the coal feeder speed detected by the speed detector (14). And the motor speed control unit 13 for controlling the speed of the coal feeder motor 15 by comparing the value converted by the function converter 16 with the signal of the steam change detector l2 indicating the required steam change amount of the boiler. The control unit equipment (DCS) is configured to maintain a constant amount of coal input by increasing or decreasing the boiler steam by increasing and decreasing the speed of the motor to realize stable control of the boiler.
(변형예, 응용예 및 법적해석)(Variants, applications and legal interpretations)
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.
상기와 같은 본 발명은 유동층 보일러의 주연료인 석탄량 조절용 제어 회로에 사용되고 있는 방사선 동위원소(-Ray Source)를 사용하지 않고 석탄 이송장치를 스팀(Steam) 변화량에 따라 조절함으로서 방사선 동위원소(-Ray Source) 사용시 관련법규에 따라 부수적으로 발생하는 문제점을 해소함으로써, 방사선 동위원소(-Ray Source) 사용 중 문제 발생시 보일러의 안정적인 운전이 불가하다는 문제점을 타 설비로 대체함으로서 보일러의 안정적인 운전확보 및 관련법규에준하는 면허소지자 및 교육 이수자가 요구되지 않으므로 원가절감 효과와 같은 장점이 있다.The present invention as described above is a radioisotope used in the control circuit for controlling the amount of coal which is the main fuel of the fluidized bed boiler ( The radioisotope is controlled by adjusting the coal feeder according to the steam variation without using a Ray Source. -Ray Source By eliminating the problems that occur in accordance with the related laws when using the radioisotope, -Ray Source) By replacing the problem that stable operation of the boiler is not possible when other problems occur during use, it is advantageous to secure the stable operation of the boiler and no license holders and trainees who comply with related laws are required.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990060613A KR100345158B1 (en) | 1999-12-22 | 1999-12-22 | The coal flow control for circulati on fluidized bed combustion boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990060613A KR100345158B1 (en) | 1999-12-22 | 1999-12-22 | The coal flow control for circulati on fluidized bed combustion boiler |
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| Publication Number | Publication Date |
|---|---|
| KR20010057399A true KR20010057399A (en) | 2001-07-04 |
| KR100345158B1 KR100345158B1 (en) | 2002-07-24 |
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| KR1019990060613A KR100345158B1 (en) | 1999-12-22 | 1999-12-22 | The coal flow control for circulati on fluidized bed combustion boiler |
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