CN206190330U - Steam turbine optimizing configuration system that split axle was arranged - Google Patents
Steam turbine optimizing configuration system that split axle was arranged Download PDFInfo
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- CN206190330U CN206190330U CN201621278869.3U CN201621278869U CN206190330U CN 206190330 U CN206190330 U CN 206190330U CN 201621278869 U CN201621278869 U CN 201621278869U CN 206190330 U CN206190330 U CN 206190330U
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Abstract
The utility model discloses a steam turbine optimizing configuration system that split axle was arranged including arranging low pressure jar and the generator of fastening at the primary shaft, arranges elasticity low pressure jar and the elasticity generator fastened at the secondary shaft at least, and the closed tube of connecting low pressure jar steam inlet end and elasticity low pressure jar steam inlet end reaches the optimization of motor arrangement position is sent out through elasticity low pressure jar and elasticity to valve on elasticity low pressure jar steam inlet end's the closed tube, can compromise the horizontal span of steam turbine platform and plants layout's flexibility, according to the configuration quantity of unit load, backpressure and elasticity low pressure jar, through the number that control put into operation or amputated elasticity low pressure jar, can realize that unit high load condition in winter keeps lower loaded backpressure, and in summer during unit low load operation operating mode, can reduce the leaving loss of low pressure jar in service again relatively to realize the optimum of season, full -load operation operating mode entirely, reach energy saving and consumption reduction's purpose.
Description
Technical field
Optimization of Steam Turbine the present invention relates to a kind of split axle arrangement configures system, belongs to field of thermal power.
Background technology
In recent years, China its people electricity consumption total amount is increased rapidly, and the diversity of customer charge is more obvious, causes power network peak
Paddy difference is increased dramatically, and in order to ensure the safe power supply and the quality of power supply of power network, accounting is higher in power system total installation of generating capacity
Fossil-fired unit have to bear the responsibility the main force of peak regulation, and it has been normal that Large-scale fire-electricity unit is in compared with low load stage operation
State.
Under design conditions, the through-flow of steam turbine can keep optimum efficiency to general steam turbine, once and off-design operating mode,
Such as summer condition, because circulating water temperature is high, unit back pressuce is high, and the volume flow of low pressure (LP) cylinder steam discharge is remarkably decreased, and causes remaining
Speed loss rises.Especially unit is in underrun operating mode again, then the volume flow of actual low pressure (LP) cylinder steam discharge is relative designs
Serious on the low side for operating mode, so as to cause, the steam discharge leaving loss of low pressure (LP) cylinder is relative to be substantially increased, and efficiency is remarkably decreased.Equally
, operating mode in the winter time, often during unit heavy-duty service, the leaving area of low pressure (LP) cylinder is again not enough, causes back pressure obstructing problem, leads
Cause the effective enthalpy drop of low pressure (LP) cylinder not enough, so as to influence the economy of unit.The design of existing large-scale thermal power steam turbine, often for
The average behavior of whole year is taken into account, its design conditions is designed according to average back pressure, and the summer of off-design operating mode
Season and winter also would have to sacrifice certain economy, otherwise, if being designed by winter condition, summer condition can be caused to run more
Plus substantial deviation optimum condition, efficiency is lower；Similarly, if being designed by summer condition, low pressure (LP) cylinder to winter condition will be serious
Obstruction, has a strong impact on effective utilization of low back pressure.
At present, the low pressure (LP) cylinder of existing Large-scale machine set configuration is generally 1 ~ 3, and unit capacity is bigger or design back-pressure is lower,
The quantity of low pressure (LP) cylinder also can be more, and this is due to being limited by existing low pressure (LP) cylinder final blade length, to increase low pressure (LP) cylinder steam discharge face
Product, will also use more low pressure (LP) cylinders, and for current turbine making factory, usual shafting is according to high, medium and low cylinder pressure
Order is arranged, by taking two low pressure (LP) cylinders as an example, if exemplary configurations as shown in figure 1, the quantity of cylinder is more, still take single shaft to design,
Swollen difference between flow passage component sound is excessive then as a significant obstacle.
It is difficult to take into account other operating modes, such as summer to ensure the optimal of design conditions in view of above-mentioned existing Design of Steam Turbine
Season performing low-load running of machine set operating mode or winter unit heavy-duty service operating mode, and the difference brought using conventional shaft system arrangement
Swollen excessive the problems such as, therefore, those skilled in the art is devoted to developing a kind of system and method for Optimization of Steam Turbine configuration,
Can take into account on the basis of the flexibility of horizontal span and factory building arrangement of steam turbine platform, realization both can control between low pressure (LP) cylinder sound
Gap, winter unit is may be implemented in again, and operating mode can keep relatively low obstruction back pressure at full capacity, and in summer performing low-load running of machine set
During operating mode, and operational efficiency higher can be kept, realize full season, full load operating condition it is optimal, reach energy-saving
Purpose.
The content of the invention
To achieve the above object, the Optimization of Steam Turbine the invention provides a kind of split axle arrangement configures system, and its feature exists
In the system includes being arranged in low pressure (LP) cylinder and generator that first axle is fastened, is arranged in the elastic low pressure (LP) cylinder in the second shafting
With elastic generator, the cross over pipe of the low pressure (LP) cylinder admission end and the elastic low pressure (LP) cylinder admission end, and the bullet are connected
Valve on the cross over pipe of property low pressure (LP) cylinder admission end.
Further, it is characterised in that the system also includes being arranged in the intermediate pressure cylinder that first axle is fastened.
Further, it is characterised in that the system also includes being arranged in the high pressure cylinder that first axle is fastened, the high pressure cylinder
Arranged with medium pressure cylinder point cylinder.
Alternatively, it is characterised in that also including high pressure cylinder, the high pressure cylinder is combined into high, middle pressing with medium pressure cylinder
Cylinder, and be arranged in first axle and fasten.
Further, it is characterised in that the system also includes at least one attachment means, multiple elastic low pressure (LP) cylinders
It is sequentially connected by attachment means described at least one.Elasticity described in the second shafting outermost attachment means correspondence outermost
Low pressure (LP) cylinder.
Alternatively, it is characterised in that affiliated attachment means are clutch system（The clutch system, can be single
Safety coupling, or individually clutch system, or the mode that is combined with clutch system of safety coupling etc.）.
Alternatively, it is characterised in that affiliated attachment means are shaft coupling.
When the elastic low pressure (LP) cylinder be 1 when, then only need on the cross over pipe of the elastic low pressure (LP) cylinder admission end cloth
Put at least one valve.
When the elastic low pressure (LP) cylinder is for multiple, then corresponding connection dress need to be also arranged between multiple elasticity low pressure (LP) cylinders
Put.Elasticity described in attachment means correspondence outermost described in shafting outermost sets low cylinder pressure, and most the inner side attachment means is another
End then connects at least includes the elastic low pressure (LP) cylinder and the elastic generator.
It should be noted that, whether cylinder is closed according to intermediate pressure cylinder quantity, low pressure (LP) cylinder quantity, elastic low pressure (LP) cylinder quantity, high pressure, is connected
Connection device form etc. have various arrangement combination, any different permutation and combination methods carried out based on the said equipment, all
Should be in the protection domain being defined in the patent claims.
The total steam discharge mass flow of specific low pressure (LP) cylinder can determine that according to unit real time execution load, with reference to unit real time execution
Back pressure, can obtain low pressure (LP) cylinder total steam discharge volume flow in real time, then according to the configuration quantity of unit elasticity low pressure (LP) cylinder, relatively all
Unit economy under the elastic low pressure (LP) cylinder of input, the elastic low pressure (LP) cylinder of excision one and the multiple elasticity low pressure (LP) cylinders of excision, according to machine
Group economy optimum operating condition is selected.
When low pressure (LP) cylinder, total steam discharge volume flow is less than or equal to " first threshold " in real time（First threshold is according to low pressure (LP) cylinder and bullet
Property low pressure (LP) cylinder configuration quantity and the total steam discharge volume flow of real-time low pressure (LP) cylinder, when cutting off outermost one elastic low pressure (LP) cylinder
When, unit heat consumption is optimal）When, then connection outermost one valve of the elastic low pressure (LP) cylinder of its center shafting is closed, together
The corresponding outermost elasticity low pressure (LP) cylinder of attachment means excision described in the corresponding outermosts of Shi Liyong；
When low pressure (LP) cylinder, total steam discharge volume flow is less than or equal to " Second Threshold " in real time（Second Threshold is less than first threshold, the
Two threshold values are the configuration quantity and the total steam discharge volume flow of real-time low pressure (LP) cylinder according to low pressure (LP) cylinder and elastic low pressure (LP) cylinder, work as excision
During two elastic low pressure (LP) cylinders, unit heat consumption is optimal）When, then close the valve for connecting another elastic low pressure (LP) cylinder；
With the low pressure (LP) cylinder always decline of steam discharge volume flow in real time, according to economic optimum, the connection bullet is closed one by one
Property low pressure (LP) cylinder the valve, while cut off the corresponding elastic low pressure (LP) cylinder using the corresponding attachment means one by one, directly
To the elastic low pressure (LP) cylinders for cutting off whole.
Conversely, the valve of the most inner side elastic low pressure (LP) cylinder is then progressively connected since most inner side, while using right
The attachment means answered connect the corresponding elastic low pressure (LP) cylinder, until the whole elastic low pressure (LP) cylinder of connection.
It should be noted that, different unit operation loads and back pressure correspond to the total steam discharge volume flow of different low pressure (LP) cylinders,
Under the different total steam discharge volume flow operating modes of low pressure (LP) cylinder, elastic low pressure (LP) cylinder excision quantity directly affects the heat consumption of unit.It is above-mentioned
For the different threshold values and elastic low pressure (LP) cylinder excision quantity of the total steam discharge volume flow setting of low pressure (LP) cylinder, it is for determining not
Under the same total steam discharge volume flow operating mode of low pressure (LP) cylinder, it is ensured that excision or the rational elasticity low pressure (LP) cylinder of input, to reduce low pressure (LP) cylinder
Leaving loss, realizes that unit economy is optimal.
And attachment means either use clutch system or shaft coupling, excision function is capable of achieving, simply clutch system
System is capable of achieving the excision of unit on-line operation, and shaft coupling need to then be cut off in the compressor emergency shutdown stage.
Steam turbine Optimizing Configuration System of the present invention can obtain following technique effect：
1st, low pressure (LP) cylinder and elastic low pressure (LP) cylinder are contemplated that enough leaving areas in design, when meeting winter high load capacity operating mode
The demand of relatively low exhaust steam pressure, and with unit circulating water temperature be stepped up and load reduction, can progressively cut off certain
The elastic low pressure (LP) cylinder of quantity, relative can reduce low pressure (LP) cylinder steam discharge leaving loss, realize that unit economy is optimal；
2nd, because wherein elastic low pressure (LP) cylinder is arranged in different shaftings from remaining low pressure (LP) cylinder, therefore, arranged using split axle
Single shafting it is relatively short, comparatively, the difference of the relative expansion between cylinder and rotor（Referred to as swollen difference）It is smaller, i.e. low pressure (LP) cylinder
Gap between sound can be made smaller, therefore steam end efficiency higher can be obtained, while the arrangement in steam turbine factory building also may be used
It is more flexible.
Even if the 3, when elastic low pressure (LP) cylinder puts into operation, because the steam discharge of intermediate pressure cylinder enters bullet by cross over pipe parallel connection respectively
Property low pressure (LP) cylinder and remaining low pressure (LP) cylinder, the overall length of cross over pipe can be controlled by rational arrangement, in terms of comprehensive, cross over pipe can be made
Total drag losses accomplishes lower, and unit economy also can be therefore more excellent.
The technique effect of design of the invention, concrete structure and generation is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is a certain system schematic for being provided without the present invention program.
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15 are these
The system schematic of the specific embodiment of invention；
Marked in figure：1-- high pressure cylinders；2-- intermediate pressure cylinders；3-- low pressure (LP) cylinders；4th, 6-- elasticity low pressure (LP) cylinder；5-- generators；7--
Elastic generator；8th, 11-- valves；9-- mesolow cross over pipes；10-- is high, middle pressing cylinder；12-- attachment means.
Specific embodiment
Embodiment 1
As shown in Fig. 2 it is a kind of the first tool of the Optimization of Steam Turbine configuration system and method for split axle arrangement of the invention
Body embodiment.It mainly includes being connected to a high pressure cylinder, intermediate pressure cylinder, the low pressure (LP) cylinder and that first axle is fastened in turn
Individual generator, the elastic low pressure (LP) cylinder and an elastic generator being connected in turn in the second shafting, valve and mesolow join
Siphunculus.
The control mode of elastic low pressure (LP) cylinder switching：
When low pressure (LP) cylinder, total steam discharge volume flow is less than or equal to " first threshold " in real time（First threshold is according to low pressure (LP) cylinder and bullet
Property low pressure (LP) cylinder configuration quantity and the total steam discharge volume flow of real-time low pressure (LP) cylinder, when the elastic low pressure (LP) cylinder 4 of excision, unit heat consumption
Most preferably）When, then the valve 8 of the wherein described elastic low pressure (LP) cylinder 4 of connection is closed, due to only one of which elasticity low pressure (LP) cylinder 4, therefore
Attachment means are not needed, the valve 8 is directly closed, is then capable of achieving to separate the second shafting, now the elasticity in the second shafting
Low pressure (LP) cylinder 4 and the elastic generator 7 are out of service；
Conversely, then opening the valve 8 of the elastic low pressure (LP) cylinder 4, then steam can enter the elasticity of the second shafting
Low pressure (LP) cylinder 4, the second shafting brings into operation.
Wherein, the rated output power of elastic low pressure (LP) cylinder may be designed as the 50% ~ 100% of the rated output power of low pressure (LP) cylinder,
As a example by 50%, 1000MW unit operations are significantly reduced in 500MW operating modes using the leaving loss of low pressure (LP) cylinder after the invention, interior
Efficiency relative can improve 4% or so, meanwhile, unit load is lower, and circulating water temperature is higher, implements the phase of low pressure (LP) cylinder after the present invention
It is also more to benefit.
Embodiment 2
Fig. 3 is the second specific embodiment of the invention.It mainly includes being connected to the high pressure that first axle is fastened in turn
Cylinder, intermediate pressure cylinder, two low pressure (LP) cylinders and a generator, an elastic low pressure (LP) cylinder and being connected in turn in the second shafting
Individual elastic generator, valve and mesolow cross over pipe.
Compared to implementation method one, a low pressure (LP) cylinder is increased, supporting can need lower steam discharge suitable for environment temperature is lower
The unit of pressure, the switching control method of its elastic low pressure (LP) cylinder is all identical with embodiment one, and here is omitted.
Embodiment 3
Fig. 4 is the 3rd specific embodiment of the invention.It mainly includes being pressed in being connected to two that first axle is fastened in turn
Cylinder, two low pressure (LP) cylinders and a generator, an elastic low pressure (LP) cylinder being connected in turn in the second shafting and an elasticity generate electricity
Machine, valve and mesolow cross over pipe.With respect to implementation method one and implementation method two, this programme main distinction is to be not provided with high pressure
Cylinder, thus can the supporting low pressure shafting suitable for double reheat split axle unit, the switching control method of its elastic low pressure (LP) cylinder all and
Embodiment one is identical, and here is omitted.
Embodiment 4
Fig. 5 is the 4th specific embodiment of the invention.It mainly includes being pressed in being connected to two that first axle is fastened in turn
Cylinder, three low pressure (LP) cylinders and a generator, an elastic low pressure (LP) cylinder being connected in turn in the second shafting and an elasticity generate electricity
Machine, valve and mesolow cross over pipe.Compared to implementation method three, a low pressure (LP) cylinder, for implementation method three, the party are increased
Case is applicable to the lower unit for needing lower exhaust steam pressure of environment temperature, and the switching control method of its elastic low pressure (LP) cylinder is all and real
Apply that example one is identical, here is omitted.
Embodiment 5
Fig. 6 is the 5th specific embodiment of the invention.It mainly includes being connected to the senior middle school that first axle is fastened in turn
Pressing cylinder, two low pressure (LP) cylinders and a generator, are connected to an elastic low pressure (LP) cylinder and an elasticity in the second shafting in turn
Generator, valve and mesolow cross over pipe.The switching control method of its elastic low pressure (LP) cylinder is all identical with embodiment two, thus herein
Repeat no more.This programme closes cylinder with the high intermediate pressure cylinder for differring primarily in that this programme of implementation method two, thus supporting applicable
Unit capacity parameter is different.
Embodiment 6
Fig. 7 is the 6th specific embodiment of the invention.It mainly includes being connected to the senior middle school that first axle is fastened in turn
Pressing cylinder, a low pressure (LP) cylinder and a generator, are connected to an elastic low pressure (LP) cylinder and an elasticity in the second shafting in turn
Generator, valve and mesolow cross over pipe.Compared to implementation method five, a low pressure (LP) cylinder is reduced, thus comparatively, it is adaptable to
Exhaust steam pressure unit higher needed for environment temperature is of a relatively high, the switching control method of its elastic low pressure (LP) cylinder all with embodiment one
Identical, here is omitted.
Embodiment 7
Fig. 8 is the 7th specific embodiment of the invention.It mainly includes being connected to the high pressure that first axle is fastened in turn
Cylinder, intermediate pressure cylinder, a low pressure (LP) cylinder and a generator, two elastic low pressure (LP) cylinders and being connected in turn in the second shafting
Individual elastic generator, attachment means, valve and mesolow cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.
The control mode of elastic low pressure (LP) cylinder switching：
1st, when attachment means select clutch system, the switching of its elastic low pressure (LP) cylinder is more flexible, is capable of achieving online switching,
But its cost is of a relatively high, and clutch system reliability in itself can influence the security of whole system.Its elastic low pressure
The control mode of cylinder switching：
When low pressure (LP) cylinder, total steam discharge volume flow is less than or equal to " first threshold " in real time（First threshold is according to low pressure (LP) cylinder and bullet
Property low pressure (LP) cylinder configuration quantity and the total steam discharge volume flow of real-time low pressure (LP) cylinder, when cutting off outermost one elastic low pressure (LP) cylinder
When 4, unit heat consumption is optimal）When, then connection outermost one valve 8 of the elastic low pressure (LP) cylinder 4 of its center shafting is closed,
Simultaneously the corresponding outermost elasticity low pressure (LP) cylinder 4 is cut off using attachment means 12 described in corresponding outermost；
When low pressure (LP) cylinder, total steam discharge volume flow is less than or equal to " Second Threshold " in real time（Second Threshold is less than first threshold, the
Two threshold values are the configuration quantity and the total steam discharge volume flow of real-time low pressure (LP) cylinder according to low pressure (LP) cylinder and elastic low pressure (LP) cylinder, work as excision
During two elastic low pressure (LP) cylinders, unit heat consumption is optimal）When, then the valve 11 for connecting another elastic low pressure (LP) cylinder 6 is closed,
Now elastic generator 7 is also out of service；
Conversely, the valve 11 of the most inner side elastic low pressure (LP) cylinder 6 is then progressively connected since most inner side, then it is elastic low
Cylinder pressure 6 drives elastic generator 7 to run.When needing elastic low pressure (LP) cylinder 4 to put into, then valve 8 is further opened, and using described
Attachment means 12 connect the corresponding elastic low pressure (LP) cylinder 4, and now, elastic low pressure (LP) cylinder 4 enters steam, common with elastic low pressure (LP) cylinder 6
The elastic power output of generator 7 is driven with operation.
Meanwhile, compared to implementation method one, which increase an elastic low pressure (LP) cylinder, therefore the load model of its switching elasticity low pressure (LP) cylinder
Enclose wider, the relative lifting to low pressure (LP) cylinder efficiency becomes apparent, and its single elastic low pressure (LP) cylinder rated output power design load
Compared to being decreased in implementation method one.
2nd, when attachment means select shaft coupling, its cost is relatively low, safe, but elastic low pressure (LP) cylinder 4 switching without
Method is realized in unit operation, can only operated after unit outage, underaction.Its control mode and elastic low pressure (LP) cylinder switching side
Formula：
After unit outage, average back pressure and average load when prediction unit next stage is run, so that available one
Average total low pressure (LP) cylinder steam discharge volume flow, when it is less than or equal to " first threshold "（First threshold is according to low pressure (LP) cylinder and elasticity
The total steam discharge volume flow of configuration quantity and real-time low pressure (LP) cylinder of low pressure (LP) cylinder, when outermost one elastic low pressure (LP) cylinder 4 of excision
When, unit heat consumption is optimal）When, then connection outermost one valve 8 of the elastic low pressure (LP) cylinder 4 of its center shafting is closed,
Simultaneously by attachment means described in outermost（Shaft coupling）12 disconnect, then cut off the corresponding outermost elasticity low pressure (LP) cylinder 4 completely；
And elastic low pressure (LP) cylinder 6 then can be real-time to determine low pressure (LP) cylinder according to real-time average back pressure and Real-time Load in operation
Total steam discharge volume flow, when it is less than or equal to " Second Threshold "（Second Threshold is less than first threshold, and Second Threshold is according to low pressure
The configuration quantity and the total steam discharge volume flow of real-time low pressure (LP) cylinder of cylinder and elastic low pressure (LP) cylinder, when two elastic low pressure (LP) cylinders of excision
When, unit heat consumption is optimal）When, then the valve 11 of the elastic low pressure (LP) cylinder 6 is closed, now elastic generator 7 stops completely
Power output；
If conversely, prediction unit next stage run when the total steam discharge volume flow of low pressure (LP) cylinder be higher than " first threshold ",
All elastic low pressure (LP) cylinder operation is put into, will attachment means（Shaft coupling）In 12 connections, and valve 8 is opened, and opens valve 11,
Then it is capable of achieving the operation of elasticity low pressure (LP) cylinder 4, elastic low pressure (LP) cylinder 6 and elastic generator 7.
Compared to implementation method one, an elastic low pressure (LP) cylinder is which increased, therefore the load range of its switching elasticity low pressure (LP) cylinder is more
Width, the relative lifting to low pressure (LP) cylinder efficiency is become apparent, and the rated output power design load of its single elastic low pressure (LP) cylinder is compared
Decreased in implementation method one.
Embodiment 8
Fig. 9 is the 8th specific embodiment of the invention.It mainly includes being connected to the high pressure that first axle is fastened in turn
Cylinder, intermediate pressure cylinder, two low pressure (LP) cylinders and a generator, two elastic low pressure (LP) cylinders and being connected in turn in the second shafting
Individual elastic generator, attachment means, valve and mesolow cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.Phase
Than implementation method two, an elastic low pressure (LP) cylinder is which increased, therefore the load range of its switching elasticity low pressure (LP) cylinder is wider, to low pressure (LP) cylinder
The relative lifting of efficiency becomes apparent, and its single elastic low pressure (LP) cylinder rated output power design load compared in implementation method two
Decrease, the switching control method of the selection of its attachment means and elastic low pressure (LP) cylinder is all identical with embodiment seven, herein no longer
Repeat.
Embodiment 9
Figure 10 is the 9th specific embodiment of the invention.It mainly includes being pressed in being connected to two that first axle is fastened in turn
Cylinder, two low pressure (LP) cylinders and a generator, two elastic low pressure (LP) cylinders being connected in turn in the second shafting and an elasticity generate electricity
Machine, attachment means, valve and mesolow cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.Compared to implementation method
Three, an elastic low pressure (LP) cylinder is which increased, therefore the load range of its switching elasticity low pressure (LP) cylinder is wider, to the relative of low pressure (LP) cylinder efficiency
Lifting becomes apparent, and its single elastic low pressure (LP) cylinder rated output power design load compared to can drop in implementation method three
Low, the switching control method of the selection of its attachment means and elastic low pressure (LP) cylinder is all identical with embodiment seven, and here is omitted.
Embodiment 10
Figure 11 is the tenth specific embodiment of the invention.It mainly includes being pressed in being connected to two that first axle is fastened in turn
Cylinder, three low pressure (LP) cylinders and a generator, two elastic low pressure (LP) cylinders being connected in turn in the second shafting and an elasticity generate electricity
Machine, attachment means, valve and mesolow cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.Compared to implementation method
Four, an elastic low pressure (LP) cylinder is which increased, therefore the load range of its switching elasticity low pressure (LP) cylinder is wider, to the relative of low pressure (LP) cylinder efficiency
Lifting becomes apparent, and its single elastic low pressure (LP) cylinder rated output power design load compared to decreasing in implementation method four,
The switching control method of the selection of its attachment means and elastic low pressure (LP) cylinder is all identical with embodiment seven, and here is omitted.
Embodiment 11
Figure 12 is the 11st specific embodiment of the invention.It mainly includes being connected to one that first axle fastens in turn high
Middle pressing cylinder, two low pressure (LP) cylinders and a generator, are connected to two elastic low pressure (LP) cylinders and a bullet in the second shafting in turn
Property generator, attachment means, valve and mesolow cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.Compared to reality
Mode five is applied, an elastic low pressure (LP) cylinder is which increased, therefore the load range of its switching elasticity low pressure (LP) cylinder is wider, to low pressure (LP) cylinder efficiency
Relative lifting become apparent, and its single elastic low pressure (LP) cylinder rated output power design load compared in implementation method five
Reduce, the switching control method of the selection of its attachment means and elastic low pressure (LP) cylinder is all identical with embodiment seven, and here is omitted.
Embodiment 12
Figure 13 is the 12nd specific embodiment of the invention.It mainly includes being connected to one that first axle fastens in turn high
Middle pressing cylinder, a low pressure (LP) cylinder and a generator, are connected to two elastic low pressure (LP) cylinders and a bullet in the second shafting in turn
Property generator, attachment means, valve and mesolow cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.Compared to reality
Mode six is applied, an elastic low pressure (LP) cylinder is which increased, therefore the load range of its switching elasticity low pressure (LP) cylinder is wider, to low pressure (LP) cylinder efficiency
Relative lifting become apparent, and its single elastic low pressure (LP) cylinder rated output power design load compared in implementation method six
Reduce, the switching control method of the selection of its attachment means and elastic low pressure (LP) cylinder is all identical with embodiment seven, and here is omitted.
Embodiment 13
Figure 14 is the 13rd specific embodiment of the invention.It mainly includes being connected to two that first axle fastens in turn low
Cylinder pressure and a generator, the two 1 elastic low pressure (LP) cylinders and an elastic generator being connected in turn in the second shafting, valve
And cross over pipe.The arrangement is applied to reheating embrittlement, i.e. first axle twice and fastens only low pressure (LP) cylinder and generator, and the embodiment is hit by a bullet
Property low pressure (LP) cylinder control mode and embodiment one are identical, and here is omitted.
Embodiment 14
Figure 15 is the 14th specific embodiment of the invention.It mainly includes being connected to two that first axle fastens in turn low
Cylinder pressure and a generator, the two elastic low pressure (LP) cylinders and an elastic generator being connected in turn in the second shafting, connection dress
Put, valve and cross over pipe, attachment means are arranged between two elastic low pressure (LP) cylinders.The embodiment attachment means mode, elasticity are low
The operation mode of cylinder pressure is mutually caused with embodiment seven.Here is omitted.
Preferred embodiment of the invention described in detail above.It should be appreciated that the ordinary skill of this area is without wound
The property made work just can make many modifications and variations with design of the invention.Therefore, all technical staff in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (6)
1. the Optimization of Steam Turbine of kind of split axle arrangement configures system, it is characterised in that the system includes that being arranged in first axle fastens
Low pressure (LP) cylinder and generator, be arranged in elastic low pressure (LP) cylinder in the second shafting and elastic generator, connect the low pressure (LP) cylinder and enter vapour
End and the cross over pipe of the elastic low pressure (LP) cylinder admission end, and the valve on the cross over pipe of the elastic low pressure (LP) cylinder admission end.
2. the system as claimed in claim 1, it is characterised in that also including intermediate pressure cylinder, medium pressure cylinder is arranged in the first shafting
On.
3. system as claimed in claim 2, it is characterised in that also including high pressure cylinder, the high pressure cylinder and medium pressure cylinder point
Cylinder is arranged in first axle and fastens.
4. system as claimed in claim 2, it is characterised in that also including high pressure cylinder, the high pressure cylinder and medium pressure cylinder group
Synthesize high, middle pressing cylinder and be arranged in first axle and fasten.
5. the system as described in claim 1-4 is any, it is characterised in that also include attachment means, institute in second shafting
Attachment means are stated to be arranged between multiple elastic low pressure (LP) cylinders.
6. system as claimed in claim 5, it is characterised in that the system also includes attachment means, the attachment means are
Clutch system or shaft coupling.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108119190A (en) * | 2016-11-27 | 2018-06-05 | 冯伟忠 | A kind of Optimization of Steam Turbine configuration system and method for split axle arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119190A (en) * | 2016-11-27 | 2018-06-05 | 冯伟忠 | A kind of Optimization of Steam Turbine configuration system and method for split axle arrangement |
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