CN107923263A - Steam turbine plant - Google Patents

Steam turbine plant Download PDF

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Publication number
CN107923263A
CN107923263A CN201680048463.2A CN201680048463A CN107923263A CN 107923263 A CN107923263 A CN 107923263A CN 201680048463 A CN201680048463 A CN 201680048463A CN 107923263 A CN107923263 A CN 107923263A
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CN
China
Prior art keywords
high pressure
pressure turbine
steam
turbine
low
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Granted
Application number
CN201680048463.2A
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Chinese (zh)
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CN107923263B (en
Inventor
高桥良太
藤田作
藤田一作
下原康彰
门脇充政
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Mitsubishi Power Ltd
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Mitsubishi Hitachi Power Systems Ltd
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Publication of CN107923263A publication Critical patent/CN107923263A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F01K7/223Inter-stage moisture separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/181Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using nuclear heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26Steam-separating arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26Steam-separating arrangements
    • F22B37/266Separator reheaters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)

Abstract

It is equipped with steam turbine plant:High pressure turbine (21), high-pressure turbine portion (25) are set and in other end set middle pressure turbine portions (26) in the one end of axis direction (C);Low-pressure turbine (22,23), configures on the axis identical with high pressure turbine (21);High pressure moisture separation and heating device (27), the side opposite with low-pressure turbine (22,23) on the axis direction (C) of high pressure turbine (21) is configured, hygroscopic water is removed from the steam from high-pressure turbine portion (25) and is transmitted to middle pressure turbine portion (26);And low pressure moisture separation and heating device (28), remove hygroscopic water from the steam from middle pressure turbine portion (26) and transmitted to low-pressure turbine (22,23), hereby it is achieved that the simplification of construction and the reduction of equipment cost.

Description

Steam turbine plant
Technical field
The present invention relates to the steam turbine plant used in atomic energy generating equipment or steam power plant etc..
Background technology
For example, atomic energy generating equipment will be transmitted from the steam that steam generator generates to steamturbine, to what is connected Generator is driven and generates electricity.In general, steamturbine is made of high-pressure turbine and low-pressure turbine, make in high-pressure turbine Steam utilization moisture separation and heating device after removes hygroscopic water and heats, backward low-pressure turbine transmit.Also, in steamturbine Steam utilization condenser after middle use cools down and becomes condensed water, which is added by low pressure feed-water heater or high service Steam generator is back to after the heating such as hot device.
In such atomic energy generating equipment, as the system for considering further performance raising, by steamturbine (high-pressure turbine, middle pressure turbine, low-pressure turbine), generator, high pressure moisture separation and heating device, low pressure moisture separation and heating device etc. are matched somebody with somebody Put in a turbine house.As such steam turbine plant, for example there is the technology that following patent documents 1 are recorded.
Citation
Patent document
Patent document 1:Japanese Unexamined Patent Application 62-218606 publications
The content of the invention
The subject that the invention solves
In conventional steam turbine plant, if to realize the system structure of patent document 1, the separation of high pressure hygroscopic water adds Hot device or low pressure moisture separation and heating device increase and equipment or pipe arrangement maximization to suppress the flow velocity of the steam of processing.Therefore, The high pressure moisture separation and heating device or low pressure moisture separation and heating device be typically configured in from the separated position of steamturbine or with steaming The ground of steam turbine different layers.Then, there are turbine house to maximize and equipment cost increase and each moisture separation and heating device The undesirable problem of maintainability.
The present invention solves above-mentioned problem, and its purpose is to provide a kind of reduction for the simplification and equipment cost for realizing construction Steam turbine plant.
Solutions to solve the problem
The steam turbine plant of the invention for being used for realization above-mentioned purpose is characterized in that having:High pressure turbine, The one end of axis direction sets high-pressure turbine portion and in other end set middle pressure turbine portion;Low-pressure turbine, configure with institute State on the identical axis of high pressure turbine;High pressure hygroscopic water separator, configure on the axis direction of the high pressure turbine with institute The opposite side of low-pressure turbine is stated, hygroscopic water is removed from the steam from the high-pressure turbine portion and is passed to medium pressure turbine portion Send;And low pressure hygroscopic water separator, remove hygroscopic water from the steam from medium pressure turbine and transmitted to the low-pressure turbine.
Therefore, the side configuration high pressure hygroscopic water opposite with low-pressure turbine on the axis direction of high pressure turbine separates Device, thus, it is possible to which near high pressure turbine or low-pressure turbine, piping length shortens and energy by the configuration of high pressure hygroscopic water separator It is enough to simplify construction, and equipment cost can be reduced, turbine house can also minimize.
The present invention steam turbine plant in, it is characterised in that the high pressure hygroscopic water separator along with the axle center The direction configuration that direction intersects.
Therefore, high pressure hygroscopic water separator is configured along the direction intersected with high pressure turbine or low-pressure turbine, thus, it is possible to Enough realize efficiently using for the space of axis direction, can minimize turbine house.
The present invention steam turbine plant in, it is characterised in that on the axis direction of the high pressure turbine with The opposite side configuration degasser of the low-pressure turbine, high pressure hygroscopic water separator configuration the high pressure turbine with it is described Between degasser.
Therefore, high pressure hygroscopic water separator is configured between high pressure turbine and degasser, not only high pressure hygroscopic water separator And degasser also can be configured effectively.
In the steam turbine plant of the present invention, it is characterised in that the high pressure hygroscopic water separator is along the axle center side To configuration.
Therefore, high pressure hygroscopic water separator and high pressure turbine or low-pressure turbine are abreast configured, thus, it is possible to will be various The length direction of equipment aligns and realizes efficiently using for space.
In the steam turbine plant of the present invention, it is characterised in that the high pressure hygroscopic water separator is configured at and the height Middle pressure turbine and the low-pressure turbine and the identical ground of the low pressure hygroscopic water separator.
Therefore, high pressure hygroscopic water separator is configured at identical with high pressure turbine, low-pressure turbine, low pressure hygroscopic water separator Ground, equipment cost is reduced thus, it is possible to shorten the piping length of connecting pipings.
In the steam turbine plant of the present invention, it is characterised in that the high pressure hygroscopic water separator is configured at and the height Middle pressure turbine and the low-pressure turbine different ground in the up-down direction.
Therefore, high pressure hygroscopic water separator is configured at and high pressure turbine and low-pressure turbine different ground in the up-down direction Face, mitigates the baneful influence of thermal stress generation thus, it is possible to ensure the piping length of connecting pipings.
In the steam turbine plant of the present invention, it is characterised in that the high pressure hygroscopic water separator configures multiple side by side.
Therefore, it is multiple by the way that high pressure hygroscopic water separator is configured side by side, processing well can be balanced and come from high-pressure turbine The steam in portion.
In the steam turbine plant of the present invention, it is characterised in that the high pressure hygroscopic water separator is the separation of high pressure hygroscopic water Heater.
Therefore, it is possible to suitably be heated to steam.
Invention effect
Steam turbine plant according to the present invention, due to opposite with low-pressure turbine on the axis direction of high pressure turbine Side configuration high pressure hygroscopic water separator, therefore construction can be simplified, and equipment cost can be reduced.
Brief description of the drawings
Fig. 1 is the summary construction diagram for the atomic energy generating equipment for representing first embodiment.
Fig. 2 is the skeleton diagram of the flowing of the condensed water and steam in the steam turbine plant for represent first embodiment.
Fig. 3 is the top view of the configuration for the steam turbine plant for representing first embodiment.
Fig. 4 is the front view for the configuration for representing steam turbine plant.
Fig. 5 is the front view for another configuration for representing steam turbine plant.
Fig. 6 is the top view of the configuration for the steam turbine plant for representing second embodiment.
Fig. 7 is the top view of the configuration for the steam turbine plant for representing the 3rd embodiment.
Embodiment
Hereinafter, referring to the drawings, the preferred embodiment for the steam turbine plant that the present invention will be described in detail.Need what is illustrated To limit the present invention not over the embodiment, moreover, embodiment there are it is multiple when, also include each embodiment party The mode that formula is combined and formed.
[first embodiment]
Fig. 1 is the summary construction diagram for the atomic energy generating equipment for representing first embodiment.
The atomic pile of first embodiment is to use light-water as atomic pile coolant and neutron degradation material Material, the high-temperature high pressure water not seethed with excitement is integrally formed throughout reactor core, which is transmitted to steam generator and is passed through Heat exchange produces steam, by the steam to turbogenerator transmission come the pressurization water type atomic reactor (PWR that generates electricity: PressurizedWater Reactor)。
In the atomic energy generating equipment of the pressurization water type atomic reactor with first embodiment, as shown in Figure 1, former Sub- reactor accommodating container 11 is accommodated with pressurization water type atomic reactor 12 and steam generator 13 in inside, and the pressurization water type is former Sub- reactor 12 links with steam generator 13 via pipe arrangement 14,15, is equipped with pressurizer 16 in pipe arrangement 14, is equipped with pipe arrangement 15 Primary cooling water pump 17.In this case, using light-water as decelerating material and primary cooling water (coolant), in order to suppress The boiling of the primary cooling water of heap core, primary cooling system maintain the high pressure of 150~160 degree of air pressure with utilization pressurizer 16 The mode of state is controlled.Therefore, in the water type atomic reactor 12 that pressurizes, it is (former that fuel is used as by low-enrichment uranium or MOX Sub- fuel) heated light-water as primary cooling water, the primary cooling water of high temperature is maintaining into regulation using pressurizer 16 High pressure in the state of transmitted by pipe arrangement 14 to steam generator 13.In the steam generator 13, in high temperature and pressure Heat exchange is carried out between primary cooling water and secondary cooling water, primary cooling water after cooling is back to pressure (hydraulic) water by pipe arrangement 15 Type atomic pile 12.
Steam generator 13 links via pipe arrangement 18 with steamturbine 19, and main steam isolation valve is equipped with the pipe arrangement 18 20.Steamturbine 19 has high pressure turbine 21 and 2 low-pressure turbines 22,23, and generator 24 is connected on coaxial.Also, High pressure turbine 21 has high-pressure turbine portion 25 and middle pressure turbine portion 26, is set between high-pressure turbine portion 25 and middle pressure turbine portion 26 There is high pressure moisture separation and heating device 27.Moreover, set between high pressure turbine 21 (middle pressure turbine portion 26) and low-pressure turbine 22,23 There is low pressure moisture separation and heating device 28.That is, the pipe arrangement 18 from steam generator 13 is connected to the inlet portion in high-pressure turbine portion 25, Steam pipe arrangement 29 is connected from the inlet portion of outlet portion to the high pressure moisture separation and heating device 27 in high-pressure turbine portion 25, from high pressure hygroscopic water The inlet portion in the outlet portion of separating heater 27 to middle pressure turbine portion 26 connects steam pipe arrangement 30.Moreover, therefrom press turbine portion 26 Outlet portion to low pressure moisture separation and heating device 28 inlet portion connection steam pipe arrangement 31, from low pressure moisture separation and heating device 28 Each inlet portion of outlet portion to low-pressure turbine 22,23 connects steam pipe arrangement 32.
Steamturbine 19 sets condenser 33,34 in the lower section of low-pressure turbine 22,23.The condenser 33,34 utilizes cooling Water is cooled down for the steam after the use in low-pressure turbine 22,23 and makes its condensation, is consequently formed condensed water.It is applicable in seawater As the cooling water, condenser 33,34 links the intake pipe 35 for supplying discharge cooling water and drainpipe 36.The intake pipe 35 has There is water circulating pump 37, other ends are configured marine together with drainpipe 36.
Also, the condenser 33,34 is connected with pipe arrangement 38, is set successively along the flow direction of condensed water on the pipe arrangement 38 Have condensing pump 39, ground capacitor 40, condensing desalter 41, condensing booster pump 42, low pressure feed-water heater 43,44,45, 46.Here, the first low pressure feed-water heater 43 and the second low pressure feed-water heater 44 are arranged in condenser 33,34, condensed water Heated by the steam used in low-pressure turbine 22,23.Moreover, the 3rd low pressure feed-water heater 45 and the 4th low pressure supply water and add Hot device 46 is arranged on outside condenser 33,34, and in the 3rd low pressure feed-water heater 45, condensed water from low-pressure turbine 22,23 by taking out The steam taken heats, and in the 4th low pressure feed-water heater 46, condensed water is added by the steam for therefrom pressing turbine portion 26 to discharge Heat.
In addition, pipe arrangement 38 at than 46 downstream of the 4th low pressure feed-water heater along the flow direction of condensed water successively Equipped with degasser 47, main feed water pump 48, high service heater 49, main water supply control valve 50.
Therefore, the steam for being carried out heat exchange using the primary cooling water of steam generator 13 and high temperature and pressure and being generated passes through Pipe arrangement 18 and transmitted to steamturbine 19, rotary force is obtained by high pressure turbine 21 and the operating of each low-pressure turbine 22,23, profit Generated electricity with rotary force driving generator 24.At this time, the steam from steam generator 13 is driving high-pressure turbine portion After 25, the hygroscopic water contained in steam is removed and heated using high pressure moisture separation and heating device 27, afterwards, centering pressure turbine portion 26 are driven.Moreover, the steam after centering pressure turbine portion 26 is driven removes steaming by low pressure moisture separation and heating device 28 The hygroscopic water contained in vapour and heating, afterwards, are driven each low-pressure turbine 22,23.Also, low-pressure turbine 22,23 is carried out Steam utilization condenser 33,34 after driving becomes condensed water cooling down using seawater, using condensing pump 39 in pipe arrangement 38 Middle flowing, passes through ground capacitor 40, condensing desalter 41, low pressure feed-water heater 43,44,45,46, degasser 47, height Press the grade of feed-water heater 49 and be back to steam generator 13.
Here, explanation high pressure turbine 21, low-pressure turbine 22,23, high pressure moisture separation and heating device 27, the separation of low pressure hygroscopic water The flowing of heater 28, the condensed water in low pressure feed-water heater 43,44,45,46 and steam.Fig. 2 is to represent the first embodiment party The skeleton diagram of the flowing of condensed water and steam in the steam turbine plant of formula.
As shown in Fig. 2, therefrom press turbine portion 26 outlet portion to low pressure moisture separation and heating device 28 inlet portion steam Pipe arrangement 31 connects the base end part of the steam branch pipe arrangement 51 from midway portion branch, and the front end of steam branch pipe arrangement 51 is connected to the Four low pressure feed-water heaters 46.Moreover, the front end of the pumping pipe arrangement 52 from low-pressure turbine 22,23 is connected to the confession of the 3rd low pressure Water heater 45.Therefore, the 3rd low pressure feed-water heater 45 carries out condensed water using from the steam that low-pressure turbine 22,23 extracts Heating, the 4th low pressure feed-water heater 46 heat condensed water using the steam for therefrom pressing turbine portion 26 to discharge.
In addition, each low pressure feed-water heater 43,44,45,46 is condensed since steam heats condensed water, production It is raw to sluice (water).Therefore, tapping pipe 53 is connected from 46 to the 3rd low pressure feed-water heater 45 of the 4th low pressure feed-water heater, from the Three low pressure feed-water heaters, 45 to the second low pressure feed-water heater 44 connect tapping pipe 54, from the second low pressure feed-water heater 44 to First low pressure feed-water heater 43 connects tapping pipe 55.Also, from the first low pressure feed-water heater 43 to first on pipe arrangement 38 Tapping pipe 56 is connected between 43 and second low pressure feed-water heater 44 of low pressure feed-water heater, the pump that sluices is equipped with tapping pipe 56 57。
In the steam turbine plant of the first embodiment so formed, high pressure is efficiently configured for steamturbine 19 Moisture separation and heating device 27, low pressure moisture separation and heating device 28 etc..
Fig. 3 is the top view of the configuration for the steam turbine plant for representing first embodiment, and Fig. 4 is to represent that steamturbine is set The front view of standby configuration.
As shown in Figures 3 and 4, the steam turbine plant of first embodiment have high pressure turbine 21, low-pressure turbine 22, 23rd, generator 24, high pressure moisture separation and heating device 27, low pressure moisture separation and heating device 28.
Turbine house (diagram is omitted) is made of multilayer, and the central portion on the ground 61 of specified layer is laid with ground 62, at this High pressure turbine 21,2 low-pressure turbines 22,23, generators 24 are set on coaxial along axis direction C on ground 62.
Low pressure moisture separation and heating device 28 is made of 2 low pressure moisture separation and heating devices 28a, 28b, with positioned at high pressure whirlpool The mode of the both sides of the width (above-below direction of Fig. 3) of wheel 21 is configured on ground 61.Each low pressure moisture separation and heating device 28a, 28b vacate predetermined distance from high pressure turbine 21 and each low-pressure turbine 22,23, are abreast configured with axis direction C.It is each low Pressure moisture separation and heating device 28a, 28b remove hygroscopic water from the steam discharged from high pressure turbine 21 and to low-pressure turbine 22,23 Transmission, 2 steam pipe arrangements 31a, 31b therefrom press the outlet portion of turbine portion 26 (with reference to Fig. 2) to extend, and front end is connected to each low Press each inlet portion of moisture separation and heating device 28a, 28b.Also, low pressure moisture separation and heating device 28a, 28b is from outlet portion to low Press each inlet portion connection steam pipe arrangement 32a, 32b of turbine 22,23.Moreover, each low pressure moisture separation and heating device 28a, 28b are equipped with The heat transfer tube group as heating source heated to steam, the steam from steam generator 13 are circulated.
In addition, high pressure moisture separation and heating device 27 is formed by 1, configure on the axis direction C of high pressure turbine 21 With 22,23 opposite side of low-pressure turbine.High pressure moisture separation and heating device 27 it is adjacent with high pressure turbine 21 and along with axle center The direction that direction C intersects is configured on ground 61.High pressure moisture separation and heating device 27 is from the steam discharged by high-pressure turbine portion 25 It is middle to remove hygroscopic water and transmitted to middle pressure turbine portion 26, outlet portion extension of the steam pipe arrangement 29 from high-pressure turbine portion 25 (with reference to Fig. 2) Go out, front end is connected to the inlet portion of high pressure moisture separation and heating device 27.Also, high pressure moisture separation and heating device 27 is from outlet portion To the inlet portion connection steam pipe arrangement 30 in middle pressure turbine portion 26.Steam is carried out moreover, high pressure moisture separation and heating device 27 is equipped with The heat transfer tube group as heating source of heating, the steam from steam generator 13 are circulated.
Degasser 47 on the ground 61 of a side side of the axis direction C of high pressure turbine 21, along with high pressure turbine The direction configuration that 21 axis direction C intersects.Degasser 47 is from the condensation from the 4th low pressure feed-water heater 46 (with reference to Fig. 2) The impurity such as dissolved oxygen or incondensable gas (ammonia) is removed in water (water supply).High pressure moisture separation and heating device 27 is in high pressure turbine Between 21 and degasser 47, vacate predetermined distance with the high pressure turbine 21 and degasser 47 and configure.
In this case, high pressure turbine 21, low-pressure turbine 22,23, generator 24 and high pressure moisture separation and heating device 27, Low pressure moisture separation and heating device 28 (28a, 28b), degasser 47 are configured at identical ground 61.
It should be noted that in the above-described embodiment, by high pressure moisture separation and heating device 27 in high pressure turbine 21 The ground 61 identical with high pressure turbine 21 or low-pressure turbine 22,23 etc. is configured between degasser 47, but is not limited For the structure.Fig. 5 is the front view for another configuration for representing steam turbine plant.
As shown in figure 5, the lower floor on ground 61 sets ground 63.High pressure moisture separation and heating device 27 is configured at setting height The ground 63 of the different lower section in the ground 61 of middle pressure turbine 21 or low-pressure turbine 22,23.But with foregoing same, high pressure hygroscopic water Separating heater 27 on the axis direction C of high pressure turbine 21 with 22,23 opposite side of low-pressure turbine along with axle center The direction configuration that direction C intersects.Also, degasser 47 is on the ground 61 of a side side of the axis direction C of high pressure turbine 21 The direction intersected along the axis direction C with high pressure turbine 21 configures.High pressure moisture separation and heating device 27 is in high pressure turbine The direction intersected on the ground 63 of a side side of 21 axis direction C along the axis direction C with high pressure turbine 21 configures.Cause This, high pressure moisture separation and heating device 27 is located at the lower section of degasser 47.
Therefore, in the turbine device of present embodiment, 1 high pressure moisture separation and heating device 27 is in high pressure turbine 21 On axis direction C with 22,23 opposite side of low-pressure turbine, it is adjacent with high pressure turbine 21 and along with axis direction C hand over The direction of fork is configured on ground 63.Thus, it is possible to high pressure moisture separation and heating device 27 is efficiently configured at high pressure turbine Near 21, the piping length of steam pipe arrangement 29,30 shortens and constructs and simplify.It is additionally, since high pressure moisture separation and heating device 27 1 is set to, therefore maintainability improves, and equipment cost reduces.
Also, as shown in Figure 1 to Figure 3, from steam generator 13 by the steam that pipe arrangement 18 transmits to high pressure turbine After 21 high-pressure turbine portion 25 is driven, transmitted using steam pipe arrangement 29 to high pressure moisture separation and heating device 27, herein Remove hygroscopic water and heat.Driven by the steam that high pressure moisture separation and heating device 27 is handled to middle pressure turbine portion 26 After dynamic, transmitted using steam pipe arrangement 30 to low pressure moisture separation and heating device 28, remove hygroscopic water herein and heat.By low pressure hygroscopic water The steam utilization steam pipe arrangement 32 that separating heater 28 is handled is transmitted and is driven to low-pressure turbine 22,23.
At this time, the steam utilization steam pipe arrangement 31 (31a, 31b) that turbine portion 26 is discharged therefrom is pressed to add to the separation of low pressure hygroscopic water Hot device 28 transmits, and is transmitted using steam branch pipe arrangement 51 to the 4th low pressure feed-water heater 46.Moreover, from low-pressure turbine 22, The 23 steam utilization pumping pipe arrangements 52 extracted are transmitted to the 3rd low pressure feed-water heater 45.Therefore, the 3rd low pressure feed-water heater 45 are heated using the steam from low-pressure turbine 22,23 for the condensed water (water supply) flowed in pipe arrangement 38, and the 4th is low Pressure feed-water heater 46 using the steam from middle pressure turbine portion 26 for heated by the 3rd low pressure feed-water heater 45 and with The condensed water (water supply) flowed in pipe 38 is heated.
So it is equipped with the steam turbine plant of first embodiment:In the one end of axis direction C, high pressure whirlpool is set Wheel portion 25 and in the high pressure turbine 21 in other end set middle pressure turbine portions 26;Configuration is in the axis identical with high pressure turbine 21 On low-pressure turbine 22,23;Configuration on the axis direction C of high pressure turbine 21 with 22,23 opposite side of low-pressure turbine, The high pressure moisture separation and heating device 27 for removing hygroscopic water from the steam from high-pressure turbine portion 25 and being transmitted to middle pressure turbine portion 26; And the low pressure moisture separation and heating device for removing hygroscopic water from the steam from middle pressure turbine portion 26 and being transmitted to low-pressure turbine 22,23 28。
Therefore, it is possible to configure high pressure moisture separation and heating device 27 in the attached of high pressure turbine 21 or low-pressure turbine 22,23 Closely, the piping length for the steam pipe arrangement 29,30 high pressure moisture separation and heating device 27 being connected with high pressure turbine 21 shortens, can Simplify construction, and equipment cost can be reduced, turbine house can also minimize.
In the steam turbine plant of first embodiment, by high pressure moisture separation and heating device 27 along with axis direction C The direction configuration of intersection.Therefore, it is possible to shorten the length of the axis direction C of the high pressure turbine 21 of various equipment, pass through realization Efficiently using for space and can make turbine house minimize.Moreover, in the length direction of high pressure moisture separation and heating device 27 End is able to ensure that service clearance, it is possible to increase the maintainability of high pressure moisture separation and heating device 27.
In the steam turbine plant of first embodiment, on the axis direction C of high pressure turbine 21 with low pressure whirlpool The opposite side configuration degasser 47 of wheel 22,23, high pressure moisture separation and heating device 27 is configured in high pressure turbine 21 and degassing Between device 47.Therefore, not only high pressure moisture separation and heating device 27 but also degasser 47 also can in a limited space it is interior effectively Configuration.
In the steam turbine plant of first embodiment, high pressure moisture separation and heating device 27 is configured at and high pressure whirlpool Wheel 21, low-pressure turbine 22,23, the identical ground 61 of low pressure moisture separation and heating device 28.Therefore, it is possible to shorten steam pipe arrangement 29, 30th, 31 piping length and reduce equipment cost.
In the steam turbine plant of first embodiment, high pressure moisture separation and heating device 27 is configured at and high pressure whirlpool Wheel 21 or low-pressure turbine 22,23 different ground 63 in the up-down direction.Therefore, it is possible to by the pipe arrangement of steam pipe arrangement 29,30,31 Length ensures longer and mitigates baneful influence caused by thermal stress.
It should be noted that in the present embodiment, on the axis direction C of high pressure turbine 21 and low-pressure turbine 22nd, 23 opposite sides are configured with high pressure moisture separation and heating device 27 along the direction intersected with axis direction C, but high pressure is wet As long as the position of the length direction of separation and heating device 27 is suitably set according to the equipment of surrounding.For example, it is contemplated that arrive height Press the connection of turbine pipe arrangement and high pressure moisture separation and heating device 27 is configured into the width in high pressure turbine 21 (with axle center side The direction intersected to C) the situation of center be rational, but can also be to the one of the width of high pressure turbine 21 Square side bias configuration.
[second embodiment]
Fig. 6 is the top view of the configuration for the steam turbine plant for representing second embodiment.It should be noted that for tool There is the component of the function same with above-mentioned embodiment, mark same label and omit detailed description.
As shown in fig. 6, the steam turbine plant of second embodiment has high pressure turbine 21, low-pressure turbine 22, steam Pipe arrangement 31, high pressure moisture separation and heating device 27, low pressure moisture separation and heating device 28.
Low pressure moisture separation and heating device 28 is made of 2 low pressure moisture separation and heating devices 28a, 28b, with positioned at high pressure whirlpool The mode of the both sides of the width of wheel 21 is configured on ground 61.Moreover, high pressure moisture separation and heating device 27 is wet by 2 high pressures Separation and heating device 27a, 27b are formed, and configure one opposite with low-pressure turbine 22 on the axis direction C of high pressure turbine 21 Side.High pressure moisture separation and heating device 27a, 27b is adjacent with high pressure turbine 21 and is configured along the direction intersected with axis direction C On ground 61.High pressure moisture separation and heating device 27a, 27b set multiple (in the present embodiment, being 2), abreast vacate Predetermined distance and configure side by side.
So in the steam turbine plant of second embodiment, using high pressure moisture separation and heating device 27 as 2 high pressures Moisture separation and heating device 27a, 27b and configure side by side.The steaming from high-pressure turbine portion 25 is handled well therefore, it is possible to balance Vapour.
[the 3rd embodiment]
Fig. 7 is the top view of the configuration for the steam turbine plant for representing the 3rd embodiment.It should be noted that for tool There is the component of the function same with above-mentioned embodiment, mark same label and omit detailed description.
As shown in fig. 7, the steam turbine plant of the 3rd embodiment has high pressure turbine 21, low-pressure turbine 22, steam Pipe arrangement 31, high pressure moisture separation and heating device 27, low pressure moisture separation and heating device 28.
Low pressure moisture separation and heating device 28 is made of 2 low pressure moisture separation and heating devices 28a, 28b, with positioned at high pressure whirlpool The mode of the both sides of the width of wheel 21 is configured on ground 61.Moreover, high pressure moisture separation and heating device 27 is formed by 1, Configure the side opposite with low-pressure turbine 22 on the axis direction C of high pressure turbine 21.High pressure moisture separation and heating device 27 It is adjacent with high pressure turbine 21 and along axis direction C configuration on ground 61.In this case, high pressure moisture separation and heating device 27th, high pressure turbine 21, low-pressure turbine 22 configure in line along axis direction C.
So in the steam turbine plant of the 3rd embodiment, by high pressure moisture separation and heating device 27 along high pressure whirlpool The axis direction C configurations of wheel 21.Therefore, it is possible to realize the space of the length direction of each high pressure moisture separation and heating device 27,28 Efficiently use.
It should be noted that in above-mentioned each embodiment, 4 low pressure feed-water heaters 43,44,45,46 are set, will 2 configurations of low pressure feed-water heater 43,44 are in condenser 33,34, by 2 configurations of low pressure feed-water heater 45,46 in condensing Outside device 33,34, but its configuration or number are not defined to embodiment, as long as scale according to steam turbine plant etc. carries out Appropriate setting.
In addition, in the above-described embodiment, the steam of final level discharge of turbine portion 26 will be therefrom pressed to low pressure hygroscopic water Separating heater 28 (28a, 28b) supplies, but the steam that can also extract the midway level for therefrom pressing turbine portion 26 is wet to low pressure Separation and heating device 28 (28a, 28b) supplies.
In addition, in the above-described embodiment, the hygroscopic water separator of the present invention is carried out as moisture separation and heating device Illustrate, but hygroscopic water separator can also be used as.
In addition, in the above-described embodiment, the steam turbine plant of the present invention is suitable for atomic energy generating equipment and It is illustrated, but is not limited to this, for example, it is also possible to suitable for steam power plant etc..
Label declaration
12 pressurization water type atomic reactors
13 steam generators
18th, 38 pipe arrangement
19 steamturbines
21 high pressure turbines
22nd, 23 low-pressure turbine
24 generators
25 high-pressure turbine portions
26 middle pressure turbine portions
27 high pressure moisture separation and heating devices (high pressure hygroscopic water separator)
28th, 28a, 28b low pressure moisture separation and heating device (low pressure hygroscopic water separator)
29th, 30,31,31a, 31b, 32,32a, 32b steam pipe arrangement
33rd, 34 condenser
43 first low pressure feed-water heaters
44 second low pressure feed-water heaters
45 the 3rd low pressure feed-water heaters
46 the 4th low pressure feed-water heaters
51 steam branch pipe arrangements
52 pumping pipe arrangements
61st, 63 ground
62 grounds
C axis directions.

Claims (8)

1. a kind of steam turbine plant, it is characterised in that have:
High pressure turbine, high-pressure turbine portion is set and in other end set middle pressure turbine portions in the one end of axis direction;
Low-pressure turbine, configures on the axis identical with the high pressure turbine;
High pressure hygroscopic water separator, configures one opposite with the low-pressure turbine on the axis direction of the high pressure turbine Side, removes hygroscopic water from the steam from the high-pressure turbine portion and is transmitted to medium pressure turbine portion;And
Low pressure hygroscopic water separator, removes hygroscopic water from the steam from medium pressure turbine and is transmitted to the low-pressure turbine.
2. steam turbine plant according to claim 1, it is characterised in that
The high pressure hygroscopic water separator is configured along the direction intersected with the axis direction.
3. steam turbine plant according to claim 2, it is characterised in that
The side configuration degasser opposite with the low-pressure turbine on the axis direction of the high pressure turbine, the high pressure Hygroscopic water separator is configured between the high pressure turbine and the degasser.
4. steam turbine plant according to claim 1, it is characterised in that
The high pressure hygroscopic water separator is configured along the axis direction.
5. steam turbine plant according to any one of claims 1 to 4, it is characterised in that
The high pressure hygroscopic water separator is configured to be separated with the high pressure turbine and the low-pressure turbine and the low pressure hygroscopic water The identical ground of device.
6. steam turbine plant according to any one of claims 1 to 4, it is characterised in that
The high pressure hygroscopic water separator is configured at different in the up-down direction from the high pressure turbine and the low-pressure turbine Ground.
7. according to steam turbine plant according to any one of claims 1 to 6, it is characterised in that
The high pressure hygroscopic water separator configures multiple side by side.
8. according to steam turbine plant according to any one of claims 1 to 7, it is characterised in that
The high pressure hygroscopic water separator is high pressure moisture separation and heating device.
CN201680048463.2A 2015-08-19 2016-07-27 Steam turbine plant Active CN107923263B (en)

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JP2015-162041 2015-08-19
JP2015162041A JP6081543B1 (en) 2015-08-19 2015-08-19 Steam turbine plant
PCT/JP2016/072029 WO2017029955A1 (en) 2015-08-19 2016-07-27 Steam turbine plant

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JP7144265B2 (en) 2018-10-02 2022-09-29 三菱重工業株式会社 moisture separators and steam turbine plants

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JP6081543B1 (en) 2017-02-15
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EP3324008A4 (en) 2018-08-01
WO2017029955A1 (en) 2017-02-23
JP2017040198A (en) 2017-02-23

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Address after: Kanagawa Prefecture, Japan

Patentee after: Mitsubishi Power Co., Ltd

Address before: Kanagawa Prefecture, Japan

Patentee before: MITSUBISHI HITACHI POWER SYSTEMS, Ltd.