KR102042653B1 - Apparatus for regulating flow rate of heat exchanger - Google Patents

Apparatus for regulating flow rate of heat exchanger Download PDF

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KR102042653B1
KR102042653B1 KR1020170140374A KR20170140374A KR102042653B1 KR 102042653 B1 KR102042653 B1 KR 102042653B1 KR 1020170140374 A KR1020170140374 A KR 1020170140374A KR 20170140374 A KR20170140374 A KR 20170140374A KR 102042653 B1 KR102042653 B1 KR 102042653B1
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flow rate
heat exchanger
circulating water
measuring
unit
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KR1020170140374A
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KR20190046498A (en
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이성건
박종환
이은수
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주식회사 포스코건설
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus

Abstract

본 발명은 열교환기에 공급되는 발전소의 순환수의 공급량을 조절하는 열교환기의 유량조절장치에 관한 것으로서, 발전소의 순환수를 공급하도록 유량를 조절하는 유량조절부와, 순환수가 공급되는 공급관과 열교환되는 냉각관을 구비한 열교환부와, 공급관에 설치되며 열교환부의 상류 및 하류에서 온도를 측정하는 제1 측정부와, 냉각관에 설치되며 열교환부의 상류 및 하류에서 온도를 측정하는 제2 측정부와, 제1 측정부의 측정결과와 제2 측정부의 측정결과에 의거해서 유량조절부를 제어하는 제어부를 포함하는 것을 특징으로 한다. 따라서 본 발명은 열교환기의 상류 및 하류에서 순환수와 냉각수의 온도상태를 측정하여 순환수의 공급유량을 조절함으로써, 열교환기의 공급유량을 제어하여 공정 프로세스의 원가를 감소시키는 동시에 불필요한 설비 또는 비효율적인 설비를 대체할 수 있는 효과를 제공한다.The present invention relates to a flow rate control apparatus of a heat exchanger for controlling the supply amount of the circulating water of the power plant supplied to the heat exchanger, the flow rate adjusting unit for adjusting the flow rate to supply the circulating water of the power plant, and the cooling heat exchanged with the supply pipe supplied with the circulating water A heat exchanger having a tube, a first measuring unit installed in the supply pipe and measuring temperature upstream and downstream of the heat exchanger, a second measuring unit installed in the cooling tube and measuring temperature upstream and downstream of the heat exchanger; And a control unit for controlling the flow rate control unit based on the measurement result of the first measurement unit and the measurement result of the second measurement unit. Therefore, the present invention measures the temperature of the circulating water and the cooling water upstream and downstream of the heat exchanger to adjust the supply flow rate of the circulating water, thereby controlling the supply flow rate of the heat exchanger to reduce the cost of the process process and at the same time unnecessary equipment or inefficient It provides the effect of replacing phosphorus facility.

Description

열교환기의 유량조절장치{APPARATUS FOR REGULATING FLOW RATE OF HEAT EXCHANGER}Flow control device of heat exchanger {APPARATUS FOR REGULATING FLOW RATE OF HEAT EXCHANGER}

본 발명은 열교환기의 유량조절장치에 관한 것으로서, 보다 상세하게는 발전설비의 열교환기에 공급되는 발전소의 순환수의 공급량을 조절하는 열교환기의 유량조절장치에 관한 것이다.The present invention relates to a flow rate control device for a heat exchanger, and more particularly to a flow rate control device for a heat exchanger for adjusting the supply amount of the circulating water of the power plant supplied to the heat exchanger of the power generation equipment.

통상 발전소의 발전설비는, 도 1에 나타낸 바와 같이 보일러와, 메인펌프(110)와, 축열조(120), 순환펌프(130) 및 열교환기(140)를 포함하여 이루어지며, 순환펌프(130)에는 열교환기(140)로 순환수를 공급 및 회수하는 순환배관(141)이 연결되어 있다.Normally, the power generation equipment of a power plant includes a boiler, a main pump 110, a heat storage tank 120, a circulation pump 130, and a heat exchanger 140, as shown in FIG. 1, and a circulation pump 130. The circulation pipe 141 for supplying and recovering the circulation water to the heat exchanger 140 is connected.

이러한 보일러에는 난방이나 발전에 필요한 열을 생산하는 발열수단으로서, 연료공급장치와, 연소장치, 통풍장치, 급수장치, 자동제어장치, 전기 집진기 등으로 구성되어 있고, 보일러에서 생산된 증기는 열교환기를 거치면서 지역난방 중온수 또는 발전용 순환수를 가열시키게 된다.The boiler is a heating means for producing heat required for heating or power generation, and is composed of a fuel supply device, a combustion device, a ventilation device, a water supply device, an automatic control device, an electric dust collector, and the steam produced in the boiler is a heat exchanger. During the heating process, district heating warm water or circulating water for power generation is heated.

또한, 열교환기(140)에는 순환수와 열교환되도록 냉각배관(142)이 설치되어 있고, 이러한 냉각배관(142)의 상류 및 하류에는 온도측정기(161, 162)가 각각 설치되어 있고, 제어수단(150)에 이들의 온도측정결과를 입수하여 순환펌프(130)의 동작을 제어해서 열교환기(140)로의 순환수의 공급유량을 조절하게 된다.In addition, the heat exchanger 140 is provided with a cooling pipe 142 so as to exchange heat with the circulating water, and temperature measuring devices 161 and 162 are provided upstream and downstream of the cooling pipe 142, respectively, and control means ( The temperature measurement results are obtained at 150 to control the operation of the circulation pump 130 to adjust the supply flow rate of the circulating water to the heat exchanger 140.

종래의 발전설비에서 기기냉각수 열교환기로 냉각수를 공급하기 위해서는 순환펌프를 사용하였으나, 최근 발전설비의 설계수준이 충분히 높음에도 불구하고 기존의 순환펌프를 사용하여 열교환을 한 유체의 출구온도를 측정하여 설계온도 이하가 될 경우, 펌프를 작동하여 더 많은 냉각수를 공급하게 되는 문제가 있었다.The circulation pump was used to supply the cooling water to the equipment cooling water heat exchanger in the conventional power generation equipment. However, although the design level of the power generation equipment is high enough recently, it is designed by measuring the outlet temperature of the heat-exchanged fluid using the existing circulation pump. If it is below the temperature, there was a problem to supply more coolant by operating the pump.

이로 인하여 종래의 발전설비에는 불필요한 설비 또는 비효율적인 설비가 함께 설계되어 설치되는 경우에는 공정원가가 상승하고 공정효율이 저하되는 문제가 있었다.For this reason, when unnecessary facilities or inefficient equipment are designed and installed in the conventional power generation equipment, there is a problem in that process cost increases and process efficiency decreases.

또한, 기기냉각수 열교환기의 경우 열교환을 거친 기기냉각수의 출구온도가 설계온도 이상으로 나타나는 경우에는, 펌프가 작동을 하여 기기냉각수 열교환기로 공급하는 순환수를 더 많이 공급하게 되므로 순환수가 순화배관에서 메인배관으로 역류하게 되는 문제도 있었다.In the case of the equipment cooling water heat exchanger, if the outlet temperature of the equipment cooling water that has undergone heat exchange is higher than the design temperature, the pump operates to supply more circulating water to the equipment cooling water heat exchanger. There was also the problem of backflow into the piping.

여기서, 펌프는 설계단계에서 펌프사양이 결정되며 사양이 결정된 후 펌프교체가 어렵고 운전점을 벗어난 경우 펌프가 작동이 되지 않아 열교환이 제대로 이루어지지 않는다는 문제도 있었다. Here, the pump has a problem that the pump specification is determined at the design stage and the pump is difficult to replace after the specification is determined and the heat exchange is not performed properly because the pump is not operated when the pump is out of the operating point.

대한민국 등록특허 제10-1374262호 (2014년03월25일)Republic of Korea Patent No. 10-1374262 (March 25, 2014) 대한민국 등록특허 제10-1651359호 (2016년08월25일)Republic of Korea Patent No. 10-1651359 (August 25, 2016) 대한민국 등록특허 제10-1124359호 (2012년03월15일)Republic of Korea Patent No. 10-1124359 (March 15, 2012)

본 발명은 상기와 같은 종래의 문제점을 해소하기 위해 안출한 것으로서, 열교환기의 공급유량을 제어하여 공정 프로세스의 원가를 감소시키는 동시에 불필요한 설비 또는 비효율적인 설비를 대체할 수 있는 열교환기의 유량조절장치를 제공하는 것을 그 목적으로 한다.The present invention has been made to solve the above-mentioned conventional problems, the flow rate control device of the heat exchanger that can replace the unnecessary equipment or inefficient equipment at the same time to reduce the cost of the process by controlling the supply flow rate of the heat exchanger To provide that purpose.

또한, 본 발명은 종래의 열교환 공정보다 높은 원가절감과 공정효율을 향상시키는 동시에 냉각수 계통에 냉각수량의 공급 공정을 정밀하게 제어할 수 있는 열교환기의 유량조절장치를 제공하는 것을 또 다른 목적으로 한다.In addition, another object of the present invention is to provide a flow control device for a heat exchanger capable of precisely controlling a process of supplying a cooling water amount to a cooling water system while improving cost reduction and processing efficiency higher than that of a conventional heat exchange process. .

또한, 본 발명은 열교환기의 공급유량을 정밀하게 제어하여 열교환기의 배관에서 메인배관으로 역류를 방지할 수 있는 열교환기의 유량조절장치를 제공하는 것을 또 다른 목적으로 한다.In addition, another object of the present invention is to provide a flow control device for a heat exchanger capable of precisely controlling the supply flow rate of the heat exchanger to prevent a backflow from the heat exchanger pipe to the main pipe.

상기와 같은 목적을 달성하기 위한 본 발명은, 열교환기에 공급되는 발전소의 순환수의 공급량을 조절하는 열교환기의 유량조절장치로서, 발전소의 순환수를 공급하도록 유량를 조절하는 유량조절부(10); 상기 유량조절부(10)에 의해 발전소의 순환수가 공급되는 공급관과, 상기 공급관에 의해 열교환되는 냉각관을 구비한 열교환부(20); 상기 공급관에 설치되며 상기 열교환부(20)의 상류 및 하류에서 온도를 측정하는 제1 측정부(30); 상기 냉각관에 설치되며 상기 열교환부(20)의 상류 및 하류에서 온도를 측정하는 제2 측정부(40); 및 상기 제1 측정부(30)의 측정결과와 상기 제2 측정부(40)의 측정결과에 의거해서 상기 유량조절부(10)를 제어하는 제어부(50);를 포함하는 것을 특징으로 한다.The present invention for achieving the above object, the flow rate adjusting device of the heat exchanger for adjusting the supply amount of the circulating water supplied to the heat exchanger, flow rate control unit for adjusting the flow rate to supply the circulating water of the power plant; A heat exchanger having a supply pipe through which the circulating water of the power plant is supplied by the flow rate control unit 10, and a cooling pipe heat exchanged by the supply pipe; A first measuring unit 30 installed in the supply pipe and measuring a temperature upstream and downstream of the heat exchange unit 20; A second measuring part 40 installed in the cooling pipe and measuring a temperature upstream and downstream of the heat exchange part 20; And a controller 50 for controlling the flow rate adjusting unit 10 based on the measurement result of the first measurement unit 30 and the measurement result of the second measurement unit 40.

본 발명의 상기 제1 측정부(30)는, 상기 유량조절부(10)의 상류 또는 하류에서 상기 공급관의 유량을 더 측정하는 것을 특징으로 한다. 본 발명의 상기 제2 측정부(40)는, 상기 열교환부(20)의 상류 또는 하류에서 상기 냉각관의 유량을 더 측정하는 것을 특징으로 한다.The first measuring unit 30 of the present invention is characterized by further measuring the flow rate of the supply pipe upstream or downstream of the flow rate control unit 10. The second measuring unit 40 of the present invention is further characterized by measuring the flow rate of the cooling tube upstream or downstream of the heat exchange unit 20.

본 발명의 상기 제어부(50)는, 상기 냉각관의 하류에서 측정된 온도와 설정온도 사이의 온도차에 의거해서 연산된 열량과, 상기 공급관의 상류 및 하류에서 측정된 온도차에 의거해서 연산된 열량을 비교하여 상기 유량조절부(10)의 개도량을 조절하는 것을 특징으로 한다.The control unit 50 of the present invention, the amount of heat calculated based on the temperature difference measured between the temperature measured in the downstream of the cooling tube and the set temperature, and the amount of heat calculated on the basis of the temperature difference measured upstream and downstream of the supply pipe. In comparison, it is characterized by adjusting the opening amount of the flow control unit (10).

이상에서 살펴본 바와 같이, 본 발명은 열교환기의 상류 및 하류에서 순환수와 냉각수의 온도상태를 측정하여 순환수의 공급유량을 조절함으로써, 열교환기의 공급유량을 제어하여 공정 프로세스의 원가를 감소시키는 동시에 불필요한 설비 또는 비효율적인 설비를 대체할 수 있는 효과를 제공한다.As described above, the present invention measures the temperature state of the circulating water and the cooling water upstream and downstream of the heat exchanger to adjust the supply flow rate of the circulating water, thereby controlling the supply flow rate of the heat exchanger to reduce the cost of the process process At the same time, it provides the effect of replacing unnecessary or inefficient equipment.

또한, 열교환기의 상류 및 하류에서 순환수와 냉각수의 유량상태를 측정하여 순환수의 공급유량을 유량조절밸브에 의해 조절함으로써, 종래의 열교환 공정보다 높은 원가절감과 공정효율을 향상시키는 동시에 냉각수 계통에 냉각수량의 공급 공정을 정밀하게 제어할 수 있는 효과를 제공한다.In addition, by measuring the flow rate of the circulating water and the cooling water in the upstream and downstream of the heat exchanger, the supply flow rate of the circulating water is controlled by a flow control valve, thereby improving the cost and processing efficiency higher than that of the conventional heat exchange process, and at the same time cooling water system. It provides the effect that can precisely control the supply process of the amount of cooling water.

또한, 제어부에서 냉각관의 하류의 온도차에 의한 열량과 공급관의 온도차에 의한 열량을 비교하여 유량조절부의 개도량을 조절함으로써, 열교환기의 공급유량을 정밀하게 제어하여 열교환기의 배관에서 메인배관으로 역류를 방지할 수 있는 효과를 제공한다.In addition, the control unit compares the amount of heat due to the temperature difference downstream of the cooling pipe with the amount of heat due to the temperature difference of the supply pipe, and adjusts the opening amount of the flow rate control part to precisely control the supply flow rate of the heat exchanger, thereby controlling the supply flow rate of the heat exchanger from the piping of the heat exchanger to the main piping. Provides the effect of preventing backflow.

도 1은 종래의 열교환기의 유량조절장치를 나타내는 구성도.
도 2는 본 발명의 일 실시예에 의한 열교환기의 유량조절장치를 나타내는 구성도.1 is a block diagram showing a flow control device of a conventional heat exchanger.
Figure 2 is a block diagram showing a flow control device of the heat exchanger according to an embodiment of the present invention.

이하, 첨부도면을 참조하여 본 발명의 바람직한 일 실시예를 더욱 상세히 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 2는 본 발명의 일 실시예에 의한 열교환기의 유량조절장치를 나타내는 구성도이다.Figure 2 is a block diagram showing a flow rate control device of a heat exchanger according to an embodiment of the present invention.

도 2에 나타낸 바와 같이, 본 실시예에 의한 열교환기의 유량조절장치는, 유량조절부(10), 열교환부(20), 제1 측정부(30), 제2 측정부(40) 및 제어부(50)를 포함하여 이루어져, 해수를 순환수로 사용하는 발전소의 순환펌프(110)에서 펌핑되어 응축기(120)와 열교환기에 분기되어 공급되는 발전소의 순환수의 공급량을 조절하는 열교환기의 유량조절장치이다.As shown in FIG. 2, the flow rate control apparatus of the heat exchanger according to the present embodiment includes a flow rate control unit 10, a heat exchange unit 20, a first measurement unit 30, a second measurement unit 40, and a control unit. It comprises a 50, the flow rate of the heat exchanger for controlling the supply amount of the circulating water of the power plant is pumped from the circulation pump 110 of the power plant using the sea water as circulating water is branched to the condenser 120 and the heat exchanger Device.

유량조절부(10)는, 발전소의 순환수를 공급하도록 유량를 조절하는 유량조절수단으로서, 발전소의 순환수의 공급유량을 조절하도록 유량제어밸브 등과 같이 순환부의 공급배관의 개도량을 조절하여 순환수의 공급유량을 조절하는 밸브로 이루어져 있는 것이 바람직하다.The flow rate control unit 10 is a flow rate adjusting means for adjusting the flow rate to supply the circulating water of the power plant. The flow rate adjusting unit 10 adjusts the opening amount of the supply pipe of the circulating part such as a flow control valve to adjust the supply flow rate of the circulating water of the power plant. It is preferable that the valve consists of a valve for controlling the flow rate of.

열교환부(20)는, 유량조절부(10)에 의해 발전소의 순환수가 공급되는 공급관(21)과, 이 공급관(21)에 의해 열교환되는 냉각관(22)을 구비한 열교환기로서, 공급관(21)과 냉각관(22)으로 이루어져 있다.The heat exchanger 20 is a heat exchanger having a supply pipe 21 through which the circulating water of the power plant is supplied by the flow rate control unit 10, and a cooling pipe 22 that exchanges heat by the supply pipe 21. 21) and a cooling tube (22).

공급관(21)은, 해수를 사용하는 발전소의 순환수가 공급되는 열교환기에 순환수가 순환되도록 설치되는 배관으로서, 해수를 순환수로 사용하는 발전소의 순환펌프(110)에 연결되어 순환수가 공급되어 배출된다.The supply pipe 21 is a pipe installed so that circulating water is circulated in a heat exchanger to which circulating water of a power plant using sea water is supplied. The supply pipe 21 is connected to a circulation pump 110 of a power plant using sea water as circulating water so that the circulating water is supplied and discharged. .

냉각관(22)은, 해수를 사용하는 발전소의 순환수가 공급되는 열교환기에 냉각수가 순환되도록 설치되는 배관으로서, 순환수가 순환되는 공급관(21)으로부터 열교환되도록 외부로부터 냉각수가 순환하게 된다.The cooling pipe 22 is a pipe installed so that the cooling water is circulated in the heat exchanger to which the circulating water of the power plant using sea water is supplied. The cooling water circulates from the outside so as to heat exchange from the supply pipe 21 through which the circulating water is circulated.

제1 측정부(30)는, 열교환부(20)의 공급관(21)에 설치되어 순환수의 상태를 측정하는 측정수단으로서, 열교환부(20)의 상류에서 순환수의 온도를 측정하는 제1 온도센서(31) 및 열교환부(20)의 하류에서 순환수의 온도를 측정하도록 제2 온도센서(32) 등과 같은 온도측정수단으로 이루어져 있다.The first measuring unit 30 is a measuring unit which is provided in the supply pipe 21 of the heat exchange unit 20 and measures the state of the circulating water. The first measuring unit 30 measures the temperature of the circulating water upstream of the heat exchange unit 20. And a temperature measuring means such as a second temperature sensor 32 or the like to measure the temperature of the circulating water downstream of the temperature sensor 31 and the heat exchanger 20.

또한, 이러한 제1 측정부(30)는, 유량조절부(10)의 상류 또는 하류에 설치되어 공급관(21)을 통과하는 순환수의 유량을 측정하는 제1 유량센서(33)를 더 구비하여 이루어지는 것도 가능함은 물론이다.In addition, the first measuring unit 30 is further provided with a first flow rate sensor 33 installed upstream or downstream of the flow rate adjusting unit 10 to measure the flow rate of the circulating water passing through the supply pipe 21. Of course, it is possible.

제2 측정부(40)는, 열교환부(20)의 냉각관(22)에 설치되어 냉각수의 상태를 측정하는 측정수단으로서, 열교환부(20)의 상류에서 냉각수의 온도를 측정하는 제3 온도센서(41) 및 열교환부(20)의 하류에서 순환수의 온도를 측정하도록 제4 온도센서(42) 등과 같은 온도측정수단으로 이루어져 있다.The second measuring unit 40 is a measuring unit installed in the cooling pipe 22 of the heat exchanger unit 20 and measuring the state of the cooling water. The second measurement unit 40 measures a temperature of the cooling water upstream of the heat exchanger unit 20. And a temperature measuring means such as a fourth temperature sensor 42 or the like to measure the temperature of the circulating water downstream of the sensor 41 and the heat exchanger 20.

또한, 이러한 제2 측정부(40)는, 열교환부(20)의 상류 또는 하류에 설치되어 냉각관(22)을 통과하는 냉각수의 유량을 측정하는 제2 유량센서(43)를 더 구비하여 이루어지는 것도 가능함은 물론이다.In addition, the second measuring unit 40 further includes a second flow rate sensor 43 provided upstream or downstream of the heat exchange unit 20 to measure the flow rate of the cooling water passing through the cooling pipe 22. Of course it is also possible.

제어부(50)는, 제1 측정부(30)의 측정결과와 제2 측정부(40)의 측정결과에 의거해서 유량조절부(10)를 제어하는 제어수단으로서, 제1 측정부(30) 및 제2 측정부(40)에서 측정된 온도 또는 온도와 유량에 의거해서 유량조절부(10)의 개도량을 조절하게 된다.The control part 50 is a control means which controls the flow volume control part 10 based on the measurement result of the 1st measuring part 30, and the measurement result of the 2nd measuring part 40, The 1st measuring part 30 And the opening amount of the flow rate control unit 10 based on the temperature or the temperature and the flow rate measured by the second measurement unit 40.

이러한 제어부(50)에서는 냉각관(22)의 하류에서 측정된 온도와 설정온도 사이의 온도차에 의거해서 연산된 열량과, 공급관(21)의 상류 및 하류에서 측정된 온도차에 의거해서 연산된 열량을 비교하여 유량조절부(10)의 개도량을 조절하여 공급관의 역류를 방지하는 것이 바람직하다.The controller 50 calculates the amount of heat calculated based on the temperature difference measured between the temperature measured downstream of the cooling pipe 22 and the set temperature, and the amount of heat calculated based on the temperature difference measured upstream and downstream of the supply pipe 21. In comparison, it is preferable to prevent the backflow of the supply pipe by adjusting the opening amount of the flow control unit 10.

이상 설명한 바와 같이, 본 발명에 따르면 열교환기의 상류 및 하류에서 순환수와 냉각수의 온도상태를 측정하여 순환수의 공급유량을 조절함으로써, 열교환기의 공급유량을 제어하여 공정 프로세스의 원가를 감소시키는 동시에 불필요한 설비 또는 비효율적인 설비를 대체할 수 있는 효과를 제공한다.As described above, according to the present invention, by adjusting the temperature of the circulating water and the cooling water upstream and downstream of the heat exchanger, the supply flow rate of the circulating water is adjusted, thereby controlling the supply flow rate of the heat exchanger to reduce the cost of the process process. At the same time, it provides the effect of replacing unnecessary or inefficient equipment.

또한, 열교환기의 상류 및 하류에서 순환수와 냉각수의 유량상태를 측정하여 순환수의 공급유량을 유량조절밸브에 의해 조절함으로써, 종래의 열교환 공정보다 높은 원가절감과 공정효율을 향상시키는 동시에 냉각수 계통에 냉각수량의 공급 공정을 정밀하게 제어할 수 있는 효과를 제공한다.In addition, by measuring the flow rate of the circulating water and the cooling water in the upstream and downstream of the heat exchanger, the supply flow rate of the circulating water is controlled by a flow control valve, thereby improving the cost and processing efficiency higher than that of the conventional heat exchange process, and at the same time cooling water system. It provides the effect that can precisely control the supply process of the amount of cooling water.

또한, 제어부에서 냉각관의 하류의 온도차에 의한 열량과 공급관의 온도차에 의한 열량을 비교하여 유량조절부의 개도량을 조절함으로써, 열교환기의 공급유량을 정밀하게 제어하여 열교환기의 배관에서 메인배관으로 역류를 방지할 수 있는 효과를 제공한다.In addition, the control unit compares the amount of heat due to the temperature difference downstream of the cooling pipe with the amount of heat due to the temperature difference of the supply pipe, and adjusts the opening amount of the flow rate control part to precisely control the supply flow rate of the heat exchanger, thereby controlling the supply flow rate of the heat exchanger from the piping of the heat exchanger to the main piping. Provides the effect of preventing backflow.

이상 설명한 본 발명은 그 기술적 사상 또는 주요한 특징으로부터 벗어남이 없이 다른 여러 가지 형태로 실시될 수 있다. 따라서 상기 실시예는 모든 점에서 단순한 예시에 지나지 않으며 한정적으로 해석되어서는 안 된다. The present invention described above can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the above embodiments are merely examples in all respects and should not be interpreted limitedly.

10: 유량조절부 20: 열교환부
30: 제1 측정부 40: 제2 측정부
50: 제어부10: flow rate control unit 20: heat exchange unit
30: first measuring unit 40: second measuring unit
50: control unit

Claims (4)

해수를 순환수로 사용하는 발전소의 순환펌프(110)에서 펌핑되어 응축기(120)와 열교환기에 분기되어 공급되는 발전소의 순환수의 공급량을 조절하는 열교환기의 유량조절장치로서,
발전소의 순환수를 공급하도록 유량를 조절하는 유량조절부(10);
상기 유량조절부(10)에 의해 발전소의 순환수가 공급되는 공급관과, 상기 공급관에 의해 열교환되는 냉각관을 구비한 열교환부(20);
상기 공급관에 설치되며 상기 열교환부(20)의 상류 및 하류에서 온도를 측정하고, 상기 유량조절부(10)의 상류 또는 하류에서 상기 공급관의 유량을 측정하는 제1 측정부(30);
상기 냉각관에 설치되며 상기 열교환부(20)의 상류 및 하류에서 온도를 측정하고, 상기 열교환부(20)의 상류 또는 하류에서 상기 냉각관의 유량을 측정하는 제2 측정부(40); 및
상기 제1 측정부(30)의 온도와 유량의 측정결과와 상기 제2 측정부(40)의 온도와 유량의 측정결과에 의거해서 상기 유량조절부(10)를 제어하는 제어부(50);를 포함하고,
상기 제어부(50)는, 상기 냉각관의 하류에서 측정된 온도와 설정온도 사이의 온도차에 의거해서 연산된 열량과, 상기 공급관의 상류 및 하류에서 측정된 온도차에 의거해서 연산된 열량을 비교하여 상기 유량조절부(10)의 개도량을 조절하여 상기 공급관의 역류를 방지하고,
상기 공급관은, 해수를 사용하는 발전소의 순환수가 공급되는 열교환기에 순환수가 순환되도록 설치되어, 해수를 순환수로 사용하는 발전소의 순환펌프(110)에 연결되어 순환수가 공급되어 배출되고,
상기 냉각관은, 해수를 사용하는 발전소의 순환수가 공급되는 열교환기에 냉각수가 순환되도록 설치되어, 순환수가 순환되는 공급관으로부터 열교환되도록 외부로부터 냉각수가 순환하게 되는 것을 특징으로 하는 열교환기의 유량조절장치.As a flow rate control device of the heat exchanger for controlling the supply amount of the circulating water of the power plant pumped from the circulation pump 110 of the power plant using the sea water as the circulating water branched to the condenser 120 and the heat exchanger,
Flow rate control unit 10 for adjusting the flow rate to supply the circulating water of the power plant;
A heat exchanger 20 having a supply pipe through which the circulating water of the power plant is supplied by the flow rate control unit 10, and a cooling pipe heat exchanged by the supply pipe;
A first measuring unit 30 installed in the supply pipe and measuring a temperature upstream and downstream of the heat exchanger unit 20, and measuring a flow rate of the supply pipe upstream or downstream of the flow control unit 10;
A second measuring unit (40) installed in the cooling tube and measuring a temperature upstream and downstream of the heat exchanger unit 20, and measuring a flow rate of the cooling tube upstream or downstream of the heat exchanger unit 20; And
A control unit 50 for controlling the flow rate adjusting unit 10 based on a result of measuring the temperature and the flow rate of the first measuring unit 30 and a result of measuring the temperature and the flow rate of the second measuring unit 40; Including,
The controller 50 compares the amount of heat calculated based on the temperature difference measured between the temperature measured downstream of the cooling pipe and the set temperature with the amount of heat calculated based on the temperature difference measured upstream and downstream of the supply pipe. By controlling the opening amount of the flow control unit 10 to prevent the back flow of the supply pipe,
The supply pipe is installed so that the circulating water is circulated in the heat exchanger supplied with the circulating water of the power plant using sea water, connected to the circulation pump 110 of the power plant using the sea water as the circulating water, the circulating water is supplied and discharged,
The cooling pipe is installed so that the cooling water is circulated in the heat exchanger to which the circulating water of the power plant using sea water is circulated, so that the cooling water is circulated from the outside so as to exchange heat from the supply pipe through which the circulating water is circulated. 삭제delete 삭제delete 삭제delete
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JP2004101129A (en) 2002-09-12 2004-04-02 Toshiba Corp Control method for refrigerator and refrigeration device
JP2010169368A (en) * 2009-01-26 2010-08-05 Chugoku Electric Power Co Inc:The Condenser backwash system and condenser backwash method
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