KR970021764A - Speed control device of feed pump combined with fluid transmission and its method - Google Patents

Speed control device of feed pump combined with fluid transmission and its method Download PDF

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Publication number
KR970021764A
KR970021764A KR1019950037554A KR19950037554A KR970021764A KR 970021764 A KR970021764 A KR 970021764A KR 1019950037554 A KR1019950037554 A KR 1019950037554A KR 19950037554 A KR19950037554 A KR 19950037554A KR 970021764 A KR970021764 A KR 970021764A
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KR
South Korea
Prior art keywords
fuel
rotation speed
pump
pressure
fluid transmission
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KR1019950037554A
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Korean (ko)
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KR100227508B1 (en
Inventor
전제환
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김종진
포항종합제철 주식회사
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Priority to KR1019950037554A priority Critical patent/KR100227508B1/en
Publication of KR970021764A publication Critical patent/KR970021764A/en
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Publication of KR100227508B1 publication Critical patent/KR100227508B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Control Of Turbines (AREA)

Abstract

본 발명은 유체 변속기와 결합된 급수 펌프의 회전수 제어 장치에 관한 것으로, 보다 상세하게는 발전소 설비인 터반을 가동시키는 증기를 생산하는 보일러에 용수를 공급하는 급수펌프의 회전수를 제어하는 장치에 관한 것으로, 스팀을 이용하여 전력을 생산하는 발전 설비에 있어서, 급수 펌프(6)와 보일러(1) 사이에 연결된 수량 조절 밸브(15)양단의 압력을 감지하는 압력 센서(12,13)와, 상기 양단의 압력 센서(12,13)에 의해 감지된 양단의 압력 차를 검출해 내는 차압계(14)와, 급수 펌프(6)의 회전수를 감지하는 속도계(11)와, 모터(28)의 회전수를 적정한 회전수로 변환시켜 주는 유체 변속기(7)의 회전수 제어기(24)의 위치를 변동시켜주는 액튜에이터(8)와, 상기 액튜에이터(8)의 위치를 검출하는 위치검출기(9)와, 보일러(1)에 열을 공급하는 버너(16)와 버너(16)에 연료를 공급하는 연료 탱크(17)사이에 설치되어 연료 공급량을 조절하는 연료량 제어기(18)와, 발전기(4)와 다수의 부하(45∼47)사이에 설치되어 발전기(4)의 부하량을 조절할 수 있는 부하량 제어기(19)와, 전체를 제어하는 제어부(10)로 구성된다.The present invention relates to a rotation speed control device for a feed pump coupled to a fluid transmission, and more particularly, to an apparatus for controlling the rotation speed of a feed pump for supplying water to a boiler for producing steam for operating a turbine, which is a power plant facility. In the power generation equipment for generating power using steam, the pressure sensor (12, 13) for sensing the pressure across the water supply control valve (15) connected between the water supply pump (6) and the boiler (1), The differential pressure gauge 14 detects the pressure difference between both ends detected by the pressure sensors 12 and 13 at both ends, the speedometer 11 detecting the rotation speed of the feed water pump 6, and the motor 28. An actuator 8 for varying the position of the rotational speed controller 24 of the fluid transmission 7 for converting the rotational speed to an appropriate rotational speed, and a position detector 9 for detecting the position of the actuator 8; , Burner 16 and burner 16 for supplying heat to boiler 1 Fuel amount controller 18 installed between the fuel tanks 17 for supplying fuel to the fuel tank and controlling the fuel supply amount, and installed between the generator 4 and the plurality of loads 45 to 47 to load the generator 4. It is composed of a load controller 19 that can adjust the control unit 10, the overall control.

Description

유체 변속기와 결합된 급수 펌프의 회전수 제어 장치 및 그 방법Speed control device of feed pump combined with fluid transmission and its method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 유체 변속기와 결합된 급수 펌프의 회전수에 제어 장치에 대한 구성도,1 is a block diagram of a control device for the rotational speed of a feed pump coupled with a fluid transmission according to the present invention,

제2도는 본 발명에 따른 유체 변속기와 결합된 급수 펌프의 회전수 제어 장치 중에서 유체 변속기에 단면도,2 is a cross-sectional view of the fluid transmission in the rotation speed control device of the feed pump coupled with the fluid transmission according to the present invention,

제3도는 본 발명에 따른 유체 변속기와 결합된 급수 펌프의 회전수 제어 장치의 제어 방법에 대한 순서도이다.3 is a flow chart of a control method of a rotation speed control device of a feed pump coupled with a fluid transmission according to the present invention.

Claims (2)

스팀을 이용하여 전력을 생산하는 발전 설비에 있어서, 급수 펌프(6)와 보일러(1) 사이에 연결된 수량 조절 밸브(15)양단의 압력을 감지하는 압력 센서(12,13)와, 상기 양단의 압력 센서(12,13)에 의해 감지된 양단의 압력 차를 검출해 내는 차압계(14)와, 급수 펌프(6)의 회전수를 감지하는 속도계(11)와, 모터(28)의 회전수를 적정한 회전수로 변환시켜 주는 유체 변속기(7)의 회전수 제어기(24)의 위치를 변동시켜 주는 액튜에이터(8)와, 상기 액튜에이터(8)의 위치를 검출하는 위치 검출기(9)와, 보일러(1)에 열을 공급하는 버너(16)와 버너(16)에 연료를 공급하는 연료 탱크(17)사이에 설치되어 연료 공급량을 조절하는 연료량 제어기(18)와, 발전기(4)와 다수의 부하(45∼47)사이에 설치되어 발전기(4)의 부하량을 조절할 수 있는 부하량 제어기(19)와, 상기 차압계(14)와 속도계(11) 및 위치 검출기(9)로부터 결과를 입력받아 유체변속기(7)의 출력 회전수를 액튜에이터(8)를 통하여 제어하고, 상기 연료량 제어기(18)와 부하량 제어기(19)를 제어할 수 있는 제어 신호를 발생하는 제어부(10)로 구성되는 것을 특징으로 하는 유체 변속기와 결합된 급수 펌프의 회전수 제어 장치.In the power generation equipment to generate electric power using steam, the pressure sensor 12, 13 for detecting the pressure across the water supply control valve (15) connected between the water supply pump (6) and the boiler (1), The differential pressure gauge 14 which detects the pressure difference between both ends detected by the pressure sensors 12 and 13, the speedometer 11 which detects the rotation speed of the feed water pump 6, and the rotation speed of the motor 28 are measured. An actuator 8 for varying the position of the rotational speed controller 24 of the fluid transmission 7 for converting to an appropriate rotational speed, a position detector 9 for detecting the position of the actuator 8, and a boiler ( A fuel amount controller 18 installed between the burner 16 for supplying heat to 1) and the fuel tank 17 for supplying fuel to the burner 16, and adjusting the fuel supply amount, the generator 4, and a plurality of loads A load controller 19 which is provided between 45 to 47 to adjust the load of the generator 4, the differential pressure gauge 14 and the speed; The output rotational speed of the fluid transmission 7 can be controlled by the actuator 8 and the fuel amount controller 18 and the load controller 19 can be controlled by receiving the results from the position detector 9 and the position detector 9. Speed control device of the feed pump coupled to the fluid transmission, characterized in that consisting of a control unit 10 for generating a control signal. 수량 조절 밸브(15)의 입력 압력과 출력 압력 차이의 상한 및 하한 허용치와 타이머를 설정하는 단계와, 타이머를 리셋시키고 차압계(14)에 의한 차압 및 급수펌프(6)의 회전 수를 측정하는 단계와, 타이머의 설정 시간이 경과하였는지를 판단하여 경과하지 않았으면 측정치와 상한 및 하한 허용치를 비교하여 범위를 벗어나면 펌프의 회전 수를 감소 및 증가시키고 측정치가 허용치 이내이면 상기 타이머 리셋 단계로 이동하는 단계와, 타이머의 설정 시간이 경과하였으면 펌프의 회전 수를 허용 최소 회전 수로 고정시키고 전기 부하량 및 연료 공급량을 서서히 중단시켜 발전 설비를 정비하는 단계로 이루어지는 것을 특징으로 하는 유체 변속기의 결합된 급수 펌프의 회전수 제어 장치의 제어 방법.Setting an upper limit and a lower limit allowable value and a timer of the difference between the input pressure and the output pressure of the water quantity regulating valve 15, and resetting the timer and measuring the number of revolutions of the differential pressure and the water supply pump 6 by the differential pressure gauge 14. Determining whether the timer has elapsed, and comparing the measured value with the upper limit and the lower limit, if it is out of the range, decreasing and increasing the rotation speed of the pump and moving to the timer reset step if the measured value is within the allowable value. And, after the set time of the timer has elapsed, fixing the rotation speed of the pump to the minimum allowable rotation speed and gradually stopping the electric load and fuel supply to maintain the power generation equipment. Control method of the water control device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950037554A 1995-10-27 1995-10-27 Rpm control and method of supply pump combined fluid coupling KR100227508B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950037554A KR100227508B1 (en) 1995-10-27 1995-10-27 Rpm control and method of supply pump combined fluid coupling

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Application Number Priority Date Filing Date Title
KR1019950037554A KR100227508B1 (en) 1995-10-27 1995-10-27 Rpm control and method of supply pump combined fluid coupling

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KR970021764A true KR970021764A (en) 1997-05-28
KR100227508B1 KR100227508B1 (en) 1999-11-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100313904B1 (en) * 1999-11-03 2001-11-26 구자홍 method for control of a solution pump of ammonia absorption heat pumps

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040100561A (en) * 2003-05-23 2004-12-02 두산중공업 주식회사 Method for Yielding Flow Rate of Steam Drain in Power Plant
KR102346560B1 (en) 2021-08-03 2022-01-06 (주)하백 Adjusting apparatus for suction diameter of pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100313904B1 (en) * 1999-11-03 2001-11-26 구자홍 method for control of a solution pump of ammonia absorption heat pumps

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