KR20170120843A - Electronic Generator using organic rankine cycle - Google Patents

Electronic Generator using organic rankine cycle Download PDF

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Publication number
KR20170120843A
KR20170120843A KR1020160049237A KR20160049237A KR20170120843A KR 20170120843 A KR20170120843 A KR 20170120843A KR 1020160049237 A KR1020160049237 A KR 1020160049237A KR 20160049237 A KR20160049237 A KR 20160049237A KR 20170120843 A KR20170120843 A KR 20170120843A
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KR
South Korea
Prior art keywords
working fluid
heater
valve
pressure
line
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Application number
KR1020160049237A
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Korean (ko)
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KR101964701B1 (en
Inventor
전언찬
박흥석
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동아대학교 산학협력단
주식회사 우보지이티
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Priority to KR1020160049237A priority Critical patent/KR101964701B1/en
Priority to PCT/KR2016/004373 priority patent/WO2017183754A1/en
Publication of KR20170120843A publication Critical patent/KR20170120843A/en
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Publication of KR101964701B1 publication Critical patent/KR101964701B1/en

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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
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • 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
    • F01K21/00—Steam engine plants not otherwise provided for
    • 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
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • 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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/04—Plants characterised by condensers arranged or modified to co-operate with the engines with dump valves to by-pass stages

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The present invention relates to a power generation apparatus using an organic Rankine cycle and, more specifically, to a technology with respect to a power generation apparatus using an organic Rankine cycle, capable of increasing power generation efficiency by bypassing and circulating a working fluid to have a sufficient temperature and pressure or higher in an organic Rankine cycle, and then supplying the working fluid having an appropriate temperature and pressure to a turbine. The power generation apparatus comprises: a main line in which a pipe is installed to be circulated and connected to a heater, a turbine, a condenser, and a transfer pump so that the working fluid circulates; a bypass line in which a bypass pipe is installed between the heater and the condenser in the main line so that the working fluid circulates through the heater, the condenser, and the transfer pump; a valve installed respectively in the main line and the bypass pipe to allow the working fluid to flow to the main line or the bypass line; a sensor installed in a pipe between the heater, the turbine, the condenser, and the transfer pump of the main line and capable of measuring pressure and temperature; and a controller which receives a signal of the sensor, is installed in a pipe on an outlet side of the heater to receive measured values of the temperature and the pressure of the working fluid, and compares the measured values with a predetermined temperature value and pressure value to control the opening and closing of the valve so that the working fluid flows to the main line or the bypass line.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a power generation apparatus using an organic Rankine cycle, in which an operating fluid is bypassed to a sufficient temperature and pressure in an organic Rankine cycle, and then a working fluid having an appropriate temperature and pressure is supplied to the turbine, Which is a technology related to a power generation apparatus using an organic matter Rankine cycle.

Generally, Rankine cycle of organic matter consists largely of transfer pump, boiler or heater, turbine, condenser, and each device is connected to piping. By turning the turbine using the pressure generated when the water of hydraulic oil inside the cycle evaporates, .

 FIG. 1 is a block diagram of a conventional organic matter Rankine cycle system, which includes a preheater 21, an evaporator 22, a turbine 23, a generator 24, and a condenser 25. A condensation tank 26 and a transfer pump 28. [

In the conventional organic Rankine cycle system, the working fluid is circulated through the piping. In order to efficiently generate electricity, steam having high temperature and high pressure must be supplied to the turbine.

However, when the working fluid discharged from the evaporator flows into the turbine without forming high pressure and high temperature, there is a problem that the power generation in the turbine is not performed well and the power generation efficiency is deteriorated.

KR 10-1152254 B1

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a power generator using an organic Rankine cycle capable of supplying a working fluid with appropriate temperature and pressure for operating the turbine, It has its purpose.

According to an aspect of the present invention, there is provided a method of operating a compressor including a main line in which piping is circulated and connected to a heater, a turbine, a condenser, and a feed pump, A bypass line in which a bypass pipe is provided between the heater and the condenser in the main line, and the working fluid circulates through the heater, the condenser, and the transfer pump; Valves respectively installed in the main line and the bypass piping to allow the working fluid to flow to the main line or the bypass line; A sensor installed in a pipe between the heater, the turbine, the condenser, and the transfer pump in the main line and capable of measuring pressure and temperature; And a controller for receiving a signal of the sensor and receiving a measurement value of a temperature and a pressure of a working fluid installed in an outlet pipe of the heater, comparing the preset temperature value and the pressure value, And a controller for causing the liquid to flow to the main line or the bypass line.

The valve includes a first valve installed in the bypass pipe, a second valve installed in an inlet pipe of the turbine, and a third valve installed in an outlet pipe of the turbine. do.

Wherein the controller closes the first valve when the temperature value and the pressure value of the working fluid flowing to the pipe on the outlet side of the heater are equal to or higher than the predetermined temperature value and the pressure value, The second valve and the third valve are connected to the main line, and when the temperature value and the pressure value of the working fluid flowing into the outlet pipe of the heater are inputted, Closing the valve and opening the first valve to allow the working fluid to flow to the bypass line.

The heater is further provided with a heat source supply line including a waste heat supplier for performing heat exchange with the heater by a fluid circulation to supply a heat source.

The heat source supply line is provided with a preheater for supplementing the irregular temperature and pressure of the heat source of the waste heat supplier to maintain the fluid at a predetermined temperature and pressure.

 The condenser is further provided with a water tank and a cooling line through which the refrigerant is circulated by the transfer pump.

According to the present invention having the above-described configuration, the following effects can be expected.

A main line for supplying the working fluid to the turbine and a bypass line for preventing the working fluid from passing through the turbine are formed to allow the working fluid to flow in the main line when the working fluid is maintained at a constant temperature and a constant pressure, The power generation efficiency of the turbine is increased.

In addition, the main line is connected to the heat source supply line so that waste heat from the outside can be recycled to the working fluid, and the amount of heat of unstable waste heat can be compensated by the preheater.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a conventional organic matter Rankine cycle system. FIG.
2 is a circulation system diagram of a power generation apparatus using an organic Rankine cycle according to an embodiment of the present invention.
FIG. 3 is an exemplary view showing a next screen of the touch screen by the start button of FIG. 2. FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

2 shows a circulation system diagram of a power generation apparatus using the organic matter Rankine cycle of the present invention.

Referring to FIG. 2, the generator using the Rankine cycle of the present invention includes a main line 100, a bypass line 200, a valve, a sensor, and a controller.

The main line 100 is a line through which electricity is generated by the working fluid and is installed to circulate and connect the pipe 110 to the heater 120, the turbine 140, the condenser 160 and the feed pump 180, The working fluid circulates through the pump 180 and power is generated in the turbine 140.

When the working fluid circulates in the main line 100, the working fluid in the heater 120 is heated to generate high pressure steam to be supplied to the turbine 140, Pressure steam is passed through the condenser 160 and the liquefied working fluid is transferred to the heater 120 by the transfer pump 180 and circulated.

Here, the heater 120 may be any type as long as it has a heat quantity for phase-converting the working fluid into high-pressure steam. In the present invention, the heater 120 is used as a brazing plate type heat exchanger.

Between the condenser 160 and the transfer pump 180, a reservoir tank 170 having a tubular shape that is twice as large as the diameter of the pipe is further provided to stabilize the flow of the working fluid to be evaporated.

The bypass line 200 repeatedly circulates the working fluid to idle the working fluid. A bypass pipe 210 is installed in the main line 100 between the heater 120 and the condenser 140, So that the working fluid circulates through the heater 120, the condenser 160, and the transfer pump 180 without passing through the turbine 140.

Here, the bypass line 200 allows the working fluid to idle without generating electricity until the working fluid reaches the temperature and pressure suitable for power generation.

Wherein the valve controls flow direction of the working fluid so as to selectively flow the working fluid to the main line or the bypass line and is installed in each of the main line and the bypass piping so that the working fluid flows into the main line or the bypass line, can do.

The valve includes a first valve V1 installed in the bypass pipe 210, a second valve V2 installed in an inlet pipe of the turbine 140 and a second valve V2 installed in an outlet pipe of the turbine 140 And a third valve (V3) installed thereon.

A working fluid can flow into the bypass pipe 210 by opening and closing the first valve V1 and a working fluid can flow into the turbine 140 by opening and closing the second and third valves 340 and 360. [ Can flow.

The sensor is installed in the piping between the heater 120, the turbine 140, the condenser 160 and the transfer pump 180 of the main line 100 to enable the pressure and temperature measurement of the working fluid.

Here, the sensor includes temperature sensors T1, T2, T3, T4 and pressure sensors P1, P2, P3, P4 and can transmit the measured data to the controller.

The controller controls the opening and closing of the valve to control the flow direction of the working fluid. The controller receives a signal from the sensor, and is installed in the outlet pipe of the heater 120 to measure the temperature and pressure of the working fluid. And compares the preset temperature value with the pressure value and controls the opening and closing of the valve to cause the working fluid to flow to the main line 100 or the bypass line 200.

More specifically, the controller receives the temperature value and the pressure value of the working fluid flowing in the outlet pipe of the heater 120, closes the first valve V1 when the pressure value is equal to or higher than the preset temperature value, The second valve V2 and the third valve V3 may be opened to allow the working fluid to flow into the main line 100 to supply the working fluid having the appropriate temperature and pressure to the turbine.

The controller receives the temperature value and the pressure value of the working fluid flowing to the outlet pipe of the heater 120, and when the pressure value is less than the pre-set temperature value, the second valve V2 and the third valve V3, and opens the first valve (V1) to allow the working fluid to flow to the bypass line (200), thereby bypassing the working fluid having no temperature and pressure suitable for the turbine .

The heater 120 is further provided with a heat source supply line 600 including a waste heat supplier 620 for performing heat exchange with the heater by fluid circulation to supply a heat source.

The preheater 640 is installed in the heat source supply line 600 to compensate the irregular temperature and pressure of the heat source of the waste heat source 620 to maintain the fluid at a predetermined temperature and pressure . Since the waste heat source 620 is supplied with the waste heat source, the amount of heat is irregular. Also, waste heat sources may not be supplied. Thus, a preheater 640 is installed to supply a stable amount of heat to the heater 120. Here, the preheater 640 is connected to the electric power supply at all times and can supply the heat source stably.

 The condenser 160 is further provided with a water tank and a cooling line 700 through which the refrigerant is circulated by the transfer pump.

Next, an operation example related to the operation of the power generation apparatus using the organic matter Rankine cycle of the present invention will be described.

First, power is supplied to a power generation apparatus using an organic matter Rankine cycle, and a program set in the controller is loaded.

Here, the controller is provided with a touch screen so that the circulation scheme shown in FIG. 1 is displayed, and is operable by a touch.

In the first screen of the touch screen, the circulation system diagram of FIG. 1 is outputted, and the screen displays the temperature T and the pressure P received by the sensor. It is also possible to check the opening and closing states (Open or Close) of the valves V1, V2 and V3 and to control the set values of temperature and pressure by clicking the start button of the alarm window.

3 is an exemplary view showing a next screen of the touch screen by the start button of FIG.

Here, the touch screen displays the Sensor Alarm Setup menu, the Valve Control Setup menu, the Pump Control Setup menu, and the Data Logging Cycle menu.

Sensor Alarm Setup menu sets minimum and maximum values of temperature sensor (T1, T2, T3, T4) and pressure sensor (P1, P2, P3, P4)

In the embodiment, the first valve is opened, so that it is displayed on the screen, and the temperature sensor T2 and the pressure sensor P2 ) Can be set to the minimum value and the maximum value.

Pump Control Setup menu You can set the pressure of the transfer pump.

The Data Logging Cycle menu allows you to adjust the cycle time of the feed pump in sec.

As described above, it can be seen that the present invention is based on the basic technical idea of providing a power generation apparatus using an organic Rankine cycle, and within the scope of the basic idea of the present invention, Of course, many other variations are possible.

100: Main line
110: Piping
120: heater
140: Turbine
160: condenser
180: Feed pump
200: Bypass line
220: Bypass piping
V1: first valve
V2: second valve
V3: third valve

Claims (6)

A main line in which piping is circulatingly connected to the heater, the turbine, the condenser, and the transfer pump so that the working fluid circulates;
A bypass line in which a bypass pipe is provided between the heater and the condenser in the main line, and the working fluid circulates through the heater, the condenser, and the transfer pump;
Valves respectively installed in the main line and the bypass piping to allow the working fluid to flow to the main line or the bypass line;
A sensor installed in a pipe between the heater, the turbine, the condenser, and the transfer pump in the main line and capable of measuring pressure and temperature; And
And a controller for controlling the opening and closing of the valve by comparing a predetermined temperature value and a pressure value to receive a measured value of the temperature and pressure of the working fluid, Line or by-pass line of the power plant. The method according to claim 1,
Wherein the valve comprises:
A first valve installed in the bypass pipe,
A second valve installed at an inlet side pipe of the turbine;
And a third valve installed at an outlet side pipe of the turbine. 3. The method of claim 2,
The controller comprising:
The first valve is closed when the temperature value and the pressure value of the working fluid flowing to the outlet side pipe of the heater are equal to or more than the preset temperature value and the pressure value, and the second valve and the third valve are opened Allowing the fluid to flow to the main line,
The second valve and the third valve are closed when the temperature value and the pressure value of the working fluid flowing to the outlet side pipe of the heater are inputted and are less than the predetermined temperature value and the pressure value, Thereby causing the fluid to flow to the bypass line. The method according to claim 1,
In the heater,
Further comprising a heat source supply line including a waste heat supplier for performing heat exchange with the heater by fluid circulation to supply a heat source. 5. The method of claim 4,
In the heat source supply line,
Wherein a preheater is installed to compensate the irregular temperature and pressure of the heat source of the waste heat supplier so as to maintain a predetermined temperature and pressure in the fluid. The method according to claim 1,
In the condenser,
A water tank, and a cooling line through which the refrigerant is circulated by the transfer pump.
KR1020160049237A 2016-04-22 2016-04-22 Electronic Generator using organic rankine cycle KR101964701B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020160049237A KR101964701B1 (en) 2016-04-22 2016-04-22 Electronic Generator using organic rankine cycle
PCT/KR2016/004373 WO2017183754A1 (en) 2016-04-22 2016-04-27 Electricity generation device using organic rankine cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160049237A KR101964701B1 (en) 2016-04-22 2016-04-22 Electronic Generator using organic rankine cycle

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KR101964701B1 KR101964701B1 (en) 2019-04-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190062798A (en) * 2017-11-29 2019-06-07 인하대학교 산학협력단 Decision method of optimal Working Fluid mixing ratio for maximizing the efficiency of organic rankine cycle system
KR102006308B1 (en) * 2018-05-30 2019-08-01 비아이피 주식회사 Control Method of Organic Rankine Cycle Power System
KR102041107B1 (en) * 2018-06-26 2019-11-07 한국생산기술연구원 Waste heat recovery generation with multi-loop and control method the same

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CN110953571A (en) * 2019-10-16 2020-04-03 孙少强 Heat supply steam residual pressure cascade utilization system applied to coal-fired heat supply unit

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KR20110079446A (en) * 2009-12-31 2011-07-07 한국에너지기술연구원 Control method of organic rankine cycle system pump
KR101152254B1 (en) 2010-08-05 2012-06-08 한국에너지기술연구원 ORC system for preventing cavitation of pump
JP2013160059A (en) * 2012-02-01 2013-08-19 Ihi Corp Heat recovery power generation device
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Publication number Priority date Publication date Assignee Title
KR20110079446A (en) * 2009-12-31 2011-07-07 한국에너지기술연구원 Control method of organic rankine cycle system pump
KR101152254B1 (en) 2010-08-05 2012-06-08 한국에너지기술연구원 ORC system for preventing cavitation of pump
JP2013160059A (en) * 2012-02-01 2013-08-19 Ihi Corp Heat recovery power generation device
JP2014238041A (en) * 2013-06-07 2014-12-18 株式会社神戸製鋼所 Waste heat recovery device and waste heat recovery device operation control method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190062798A (en) * 2017-11-29 2019-06-07 인하대학교 산학협력단 Decision method of optimal Working Fluid mixing ratio for maximizing the efficiency of organic rankine cycle system
KR102006308B1 (en) * 2018-05-30 2019-08-01 비아이피 주식회사 Control Method of Organic Rankine Cycle Power System
KR102041107B1 (en) * 2018-06-26 2019-11-07 한국생산기술연구원 Waste heat recovery generation with multi-loop and control method the same

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KR101964701B1 (en) 2019-04-02
WO2017183754A1 (en) 2017-10-26

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