KR101624017B1 - Steam turbine driving machine, and ship and gas liquefaction apparatus each equipped with steam turbine driving machine - Google Patents
Steam turbine driving machine, and ship and gas liquefaction apparatus each equipped with steam turbine driving machine Download PDFInfo
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- KR101624017B1 KR101624017B1 KR1020137021871A KR20137021871A KR101624017B1 KR 101624017 B1 KR101624017 B1 KR 101624017B1 KR 1020137021871 A KR1020137021871 A KR 1020137021871A KR 20137021871 A KR20137021871 A KR 20137021871A KR 101624017 B1 KR101624017 B1 KR 101624017B1
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- pressure
- steam
- turbine
- low
- driven
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- 239000003507 refrigerant Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 18
- 239000003638 chemical reducing agent Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/02—Use of propulsion power plant or units on vessels the vessels being steam-driven
- B63H21/06—Use of propulsion power plant or units on vessels the vessels being steam-driven relating to steam turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
- B63H23/10—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit
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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
- F01K15/00—Adaptations of plants for special use
- F01K15/02—Adaptations of plants for special use for driving vehicles, e.g. locomotives
- F01K15/04—Adaptations of plants for special use for driving vehicles, e.g. locomotives the vehicles being waterborne vessels
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0022—Hydrocarbons, e.g. natural gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/005—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by expansion of a gaseous refrigerant stream with extraction of work
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0203—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle
- F25J1/0204—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle as a single flow SCR cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
- F25J1/0282—Steam turbine as the prime mechanical driver
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
- F25J1/0288—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings using work extraction by mechanical coupling of compression and expansion of the refrigerant, so-called companders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/14—External refrigeration with work-producing gas expansion loop
- F25J2270/16—External refrigeration with work-producing gas expansion loop with mutliple gas expansion loops of the same refrigerant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Provided is a steam turbine driver capable of independently driving two output shafts by a simple configuration after bimaxing without causing an increase in installation space. A first driving shaft 4 driven by a forward high pressure turbine 7 and a steam exhausted from a forward high pressure turbine 7 are supplied and driven A second drive shaft 14 driven by a forward first low pressure turbine 11 and a forward second low pressure turbine 13 and a forward first low pressure turbine 11 and a forward second low pressure turbine 13, (1), which is exhausted from a forward high pressure turbine (7) and controls the pressure of the steam supplied to the first low pressure turbine (11) for advancing and the second low pressure turbine (13) for forwarding, A dump pipe 33 and a pressure reducing valve 35 are provided.
Description
The present invention relates to a steam turbine driver having two drive shafts, and to a ship having a steam turbine driver and a gas liquefaction device.
A high pressure turbine in which superheated steam derived from a boiler is supplied and rotated as a steam turbine for rotating a propeller of a ship and a low pressure turbine in which superheated steam exhausted from a high pressure turbine is supplied and rotated is known 1). In this marine steam turbine, a high-pressure turbine and a low-pressure turbine are arranged side by side in the line width direction, and each rotary output obtained from these turbines is combined by a reduction gear to rotate one propeller.
In the case where the output shaft for rotating the propeller is required to be biaxially due to enlargement of the ship or the like, if a steam turbine described in
Therefore, when the ship is required to be biaxially drawn, a low-speed diesel direct-coupled system or an electric motor propulsion system is mainly employed.
In order to solve the problem of installation space of such a steam turbine, a steam turbine described in Patent Document 2 below has been proposed. This steam turbine arranges the high pressure turbine and the low pressure turbine in a line width direction, drives one of the output shafts by the high pressure turbine, and drives the other output shaft by the low pressure turbine, thereby avoiding an increase in installation space.
However, since a single flow type of superheated steam which drives the low pressure turbine by the superheated steam discharged from the high pressure turbine is employed, an imbalance of the high pressure turbine output and the low pressure turbine output inevitably occurs. In order to solve this problem, the steam turbine disclosed in this document has an axis generator and an electric motor formed on each output shaft and electrically connected to each other, thereby eliminating the unbalance of the respective outputs.
The steam turbine disclosed in Patent Document 2 is excellent in that output unbalance of each output shaft can be solved, but it is necessary to form an axial generator and an electric motor, which leads to an increase in facility complexity and cost.
SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a steam turbine driver capable of independently driving two output shafts by a simple configuration after bimaxing without causing an increase in installation space, It is an object of the present invention to provide a vessel equipped with a driving machine and a gas liquefaction apparatus.
Means for Solving the Problems In order to solve the above problems, a steam turbine driver of the present invention and a ship having a steam turbine driver and a gas liquefier employ the following means.
That is, a steam turbine driver according to a first aspect of the present invention includes: a high-pressure side turbine to which steam is supplied and driven; a first drive shaft driven by the high-pressure side turbine; Pressure side turbine and a second drive shaft driven by the low-pressure side turbine, wherein the steam turbine driver includes pressure control means for controlling the pressure of the steam exhausted from the high-pressure side turbine and supplied to the low-pressure side turbine .
The steam turbine driver employs a first drive shaft driven by a high pressure side turbine and a second drive shaft driven by a low pressure side turbine driven by supplying steam exhausted from a high pressure side turbine, The biaxialization can be realized without causing an increase in installation space.
Pressure turbine exhausted from the high-pressure turbine and controlling the pressure of the steam supplied to the low-pressure turbine, the pressure of the steam flowing into the low-pressure turbine is controlled by the pressure of the high- . Thus, the output of the high-pressure side turbine and the output of the low-pressure side turbine can be independently controlled. As described above, the biaxial independent control can be realized with a simple configuration in which the pressure control means is added.
The high-pressure side turbine includes a high-pressure turbine driven by a high-pressure superheated steam from the boiler. In addition to the high-pressure turbine, the superheated steam obtained by reheating the exhaust steam from the high- And an intermediate pressure turbine driven.
Further, the output of each drive shaft of the steam turbine driver may be used, for example, for driving a propeller of a ship, as a power source for a compressor for liquefying the gas, or for driving a generator.
Further, in the steam turbine driver according to the first aspect, the pressure control means includes a steam dump path for branching a part of the steam exhausted from the high-pressure turbine into a condenser, and a steam dump path for reducing steam flowing through the steam dump path And a control unit for controlling the pressure reducing valve so that steam flowing to the low pressure side turbine becomes a predetermined pressure.
A portion of the steam exhausted from the high-pressure side turbine is guided to the condenser through the steam dump path to reduce the pressure of the steam introduced into the low-pressure side turbine. At this time, the control unit controls the pressure reducing valve that reduces the pressure of the steam flowing in the steam dump path, and the pressure of the steam flowing to the low pressure side turbine is set to a predetermined value. Thus, the inlet vapor pressure of the low-pressure side turbine can be independently controlled regardless of the exhaust pressure of the high-pressure side turbine.
The steam turbine driver according to the first aspect may be configured such that steam derived from a separate system different from the exhaust system of the high-pressure turbine is supplied to the low-pressure turbine.
The superheated steam of the separate system is supplied to the low pressure side turbine to increase the output of the low pressure side turbine. As a result, the output can be increased or decreased independently of the high-pressure side turbine, so that the low-pressure side turbine can be stably controlled.
The steam derived from the separate system may be, for example, a utility steam derived from a boiler reheat steam line. Thereby, it can be independent from the main turbine system, and more stable operation can be expected.
In the above configuration, the low-pressure turbine is composed of two low-pressure turbines, a first low-pressure turbine and a second low-pressure turbine formed in parallel with the superheated steam supplied from the high-pressure turbine, The steam may be supplied from the separate system.
The low-pressure turbine is divided into two low-pressure turbines, and steam is supplied from a separate system to only one of the first low-pressure turbines. This improves the controllability of the low-pressure side turbine.
In the above arrangement, the steam supply path for connecting the inlet side of the first low-pressure turbine and the exhaust side of the high-pressure turbine is provided with a steam supply passage for preventing the backward flow of steam from the first low- A valve is formed.
The steam from the separate system is supplied to the first low-pressure turbine. Therefore, depending on the pressure condition of the superheated steam exhausted from the high-pressure turbine (that is, depending on the set pressure value of the pressure control means) The steam may flow backward from the first low-pressure turbine to the high-pressure-side turbine. In order to prevent this backflow, a check valve is formed to realize stable operation.
The ship according to the second aspect of the present invention is characterized in that it comprises a steam turbine actuator described in any of the above, a first propeller rotationally driven by the first drive shaft, and a second propeller rotationally driven by the second drive shaft Respectively.
Since the steam turbine driver described above can be used to realize a biaxial ship having two propellers using a steam turbine driver capable of independently driving two axes, Can be provided.
Further, the high-pressure side turbine and the low-pressure side turbine can be applied not only to the forward turbine but also to the reverse turbine.
According to a third aspect of the present invention, there is provided a gas liquefier comprising: the steam turbine actuator described in any of the above; a first compressor rotationally driven by the first drive shaft; a second compressor rotationally driven by the second drive shaft; A first cold / hot output section for expanding the refrigerant compressed by the first compressor to obtain cold heat, and a second cold / heat output section for expanding the refrigerant compressed by the second compressor to obtain cold heat, And the liquefied gas is cooled by the one cold / heat output section and the second cold / heat output section to liquefy.
By using a steam turbine actuator capable of independently driving two axes, two liquefied gases were liquefied by independently driving two compressors and obtaining two expansion cycles. Thereby, it is possible to provide a gas liquefier which is advantageous in terms of installation property and cost.
Pressure side turbine and the pressure control means for controlling the pressure of superheated steam exhausted from the high-pressure side turbine and supplied to the low-pressure side turbine. Therefore, the output of the high-pressure side turbine and the output of the low- have.
1 is a schematic configuration diagram showing a steam turbine driver according to a first embodiment of the present invention.
2 is a schematic structural view showing a steam turbine actuator according to a second embodiment of the present invention.
3 is a schematic structural view showing an example in which the steam turbine driver of the present invention is applied to a gas liquefier.
4 is a schematic diagram showing an example in which the steam turbine driver of the present invention is applied when the FSRU is converted from the existing one axis.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
A first embodiment of the present invention will be described below with reference to Fig.
Fig. 1 shows a
The starboard machine (3) is provided with a forward high pressure turbine (high pressure side turbine) (7) and a reverse turbine (9).
In the high-
In the
The forward
The
The forward first
An
A low-pressure driving
The
From the ship boiler, the main drive steam made of high-pressure superheated steam is supplied to the forwarding high-
The superheated steam discharged from the forward
The pressure of the super heated steam supplied to each of the
When the forward first
When the output of the port side propeller is insufficient, the low-pressure driving steam derived from the low-pressure-driving
The steam that has been rotated by driving the forward first
At the time of the backward movement, the main drive steam is supplied to each of the
As described above, according to the present embodiment, the following operational effects are exhibited.
A
In order to control the pressure of the steam exhausted from the forward
A superheated steam supply system as a separate system different from the
The low-pressure turbine is divided into two low-pressure turbines (the first low-
[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to Fig. The present embodiment further improves the configuration of the first embodiment. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and a description thereof will be omitted.
A forward
The
The superheated steam discharged from the forwarding
A
The dump steam after passing through the
The superheated steam after the pressure control is supplied to the first
The steam, which has been finished in the first
The low-pressure-driving
In the present embodiment, in the first embodiment, instead of the
The high pressure
A
The super heated steam exhausted from the high pressure
A
Thus, the backward
The dump steam after passing through the
The superheated steam flowing through the backward
Pressure
The low-pressure low-
The
The backward
Then, the main drive steam made of high-pressure superheated steam from the ship boiler is supplied to the forwarding high-
The superheated steam exhausted from the forward
The pressure of the super heated steam supplied to each of the
When the forward first
When the output of the port side propeller is insufficient, the low-pressure driving steam derived from the low-pressure-driving
The steam that has been rotated by driving the forward first
The forward
In the reverse operation, the same operation as that in the forward operation is performed, so that the description thereof will be omitted. That is, the high-pressure
As described above, according to the present embodiment, the following operational effects are exhibited.
A
In order to control the pressure of the steam exhausted from the forward
The
As a superheated steam supply system of a separate system which is different from the
The low-pressure turbine is divided into two low-pressure turbines (the first low-
The low pressure driving steam supplied to the first
[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to Fig. In the first and second embodiments, it is assumed that the
The
The
In a refrigeration cycle not shown, a first cold / heat output section for expanding the refrigerant compressed by the
By applying the
[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described with reference to Fig. In the first and second embodiments, it is assumed that the
An
Thus, in this embodiment, the
As in the present embodiment, even when a conventional single-shaft steam turbine line is changed to a reactor such as an FSRU, the existing propulsion device can be modified and used for driving a generator. Since the
1A, 1B: Steam turbine actuator
4:
7: High pressure turbine for forward (high pressure side turbine)
11: First low pressure turbine for forward use (low pressure side turbine)
13: 2nd low pressure turbine for forward (low pressure side turbine)
14: second drive shaft
33, 80: Steam dump piping (pressure control means)
35, 82: Pressure reducing valve (pressure control means)
37: Low pressure driven steam piping
56, 84: Pressure sensor (pressure control means)
58: second control section (pressure control means)
62: Check valve
86: fifth control unit (pressure control means)
Claims (7)
A first drive shaft driven by the high-pressure side turbine,
A low pressure side turbine to which steam exhausted from the high pressure side turbine is supplied and driven;
And a second drive shaft driven by the low pressure side turbine,
And a pressure control means for controlling the pressure of the steam exhausted from the high-pressure-side turbine and supplied to the low-pressure-side turbine,
The steam on the low-pressure side turbine is further supplied from a separate system different from the exhaust system of the high-pressure side turbine,
The low-pressure side turbine comprises two low-pressure turbines, a first low-pressure turbine and a second low-pressure turbine formed in parallel with the superheated steam supplied from the high-pressure-side turbine,
And for the first low-pressure turbine only, steam is further supplied from the separate system.
Wherein the pressure control means comprises:
A steam dump path for branching a part of the steam exhausted from the high-pressure side turbine and leading the steam to a condenser;
A pressure reducing valve for reducing the pressure of steam flowing through the steam dump passage,
And a control unit for controlling the pressure reducing valve so that steam flowing to the low-pressure turbine becomes a predetermined pressure.
The steam supply path connecting the inlet side of the first low-pressure turbine and the exhaust side of the high-pressure turbine is provided with a check valve for preventing reverse flow of the vapor from the first low- Actuator.
A first propeller rotatably driven by the first drive shaft,
And a second propeller rotatably driven by the second drive shaft.
A first compressor rotationally driven by a first drive shaft,
A second compressor rotationally driven by a second drive shaft,
A first cool / heat output unit for expanding a refrigerant compressed by the first compressor to obtain cold heat,
And a second cold / heat output unit for expanding the refrigerant compressed by the second compressor to obtain cold heat,
And the gas is cooled by the first and second cold / heat output sections and the second cold /
Wherein the steam turbine driver comprises a high pressure side turbine to which steam is supplied and is driven, a first drive shaft driven by the high pressure side turbine, a low pressure side turbine driven by supplying steam exhausted from the high pressure side turbine, A second drive shaft driven by a low pressure side turbine and a pressure control means for controlling a pressure of steam exhausted from the high pressure side turbine and supplied to the low pressure side turbine.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011040717A JP5818459B2 (en) | 2011-02-25 | 2011-02-25 | Steam turbine drive machine, ship equipped with steam turbine drive machine, and gas liquefaction device |
JPJP-P-2011-040717 | 2011-02-25 | ||
PCT/JP2012/053017 WO2012114892A1 (en) | 2011-02-25 | 2012-02-09 | Steam turbine driving machine, and ship and gas liquefaction apparatus each equipped with steam turbine driving machine |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20130106889A KR20130106889A (en) | 2013-09-30 |
KR101624017B1 true KR101624017B1 (en) | 2016-05-24 |
Family
ID=46720677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020137021871A KR101624017B1 (en) | 2011-02-25 | 2012-02-09 | Steam turbine driving machine, and ship and gas liquefaction apparatus each equipped with steam turbine driving machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2679483B1 (en) |
JP (1) | JP5818459B2 (en) |
KR (1) | KR101624017B1 (en) |
CN (1) | CN103380056B (en) |
WO (1) | WO2012114892A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180002157U (en) | 2017-01-04 | 2018-07-12 | 한전케이피에스 주식회사 | Disassembly and assembly device for actuator coupling of low pressure turbine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6415997B2 (en) * | 2015-01-23 | 2018-10-31 | 三菱重工業株式会社 | Ship integrated control apparatus, ship provided with the same, integrated control method and program |
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WO2012114892A1 (en) | 2012-08-30 |
EP2679483A1 (en) | 2014-01-01 |
JP2012176691A (en) | 2012-09-13 |
EP2679483A4 (en) | 2017-05-17 |
EP2679483B1 (en) | 2019-04-10 |
CN103380056B (en) | 2016-05-11 |
KR20130106889A (en) | 2013-09-30 |
JP5818459B2 (en) | 2015-11-18 |
CN103380056A (en) | 2013-10-30 |
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