CN205593000U - Fuel supply equipment and gas turbine installation - Google Patents
Fuel supply equipment and gas turbine installation Download PDFInfo
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- CN205593000U CN205593000U CN201620300589.1U CN201620300589U CN205593000U CN 205593000 U CN205593000 U CN 205593000U CN 201620300589 U CN201620300589 U CN 201620300589U CN 205593000 U CN205593000 U CN 205593000U
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Abstract
Fuel supply equipment (40) of supplying with fuel ware from fuel gas (Gf) to gas turbine (2) (21) include: gas compressor (60), it makes fuel gas (Gf) step up, fuel gas piping (41), it is carried through gas compressor (60) by the fuel gas (Gf) after stepping up to combustor (21), and water injection apparatus (50), its upstream side piping (42) interior injection water in to fuel gas piping (41), lean on the upstream side than the mid point of total length.
Description
Technical field
This utility model relates to fuel-supplying unit and gas-turbine installation.
Background technology
Gas turbine possesses: suck air and the compressor compressed it；Fuel combustion is made to generate the burner of burning gases in by compressor by the air after compressing；And by the turbine of combustion gases drive.
When the temperature of the air arranged in environment of gas turbine raises, the mass flow of the air of the suction of the compressor of gas turbine reduces.Therefore, the mass flow of the gas flowing into turbine reduces.Therefore, when the known temperature when air raises all the time, the output of gas turbine reduces.
Thus, in the fuel-supplying unit described in following patent documentation 1, being blown into water in fuel gas, supplied by the burning gases comprising be blown into water in fuel device, the output of the gas turbine when temperature of suppression air raises reduces.
Citation
Patent documentation
Patent documentation 1: No. 4529220 publications of Japanese Patent No.
But, in fuel-supplying unit as above-mentioned patent documentation 1, in the case of not being appropriately carried out system design, there is the water being blown in fuel gas and do not evaporate and cause water droplet to flow into the probability of burner.
Utility model content
Utility model problem to be solved
Thus, the purpose of this utility model is, it is provided that can suppress fuel-supplying unit and gas-turbine installation that water droplet flows into burner.Meanwhile, the purpose of this utility model also resides in, it is achieved bring the risk of foreign body when the optimization of performance and suppression operating in burner into.
For solving the scheme of problem
Fuel gas is supplied to the burner of gas turbine, it is characterised in that described fuel-supplying unit possesses: gas compressor, and it makes fuel gas boost for reaching the fuel-supplying unit as the first method involved by utility model of described purpose；Fuel gas pipe arrangement, its fuel gas after the conveying of described burner is boosted by described gas compressor；And water jet device, its in described fuel gas pipe arrangement, than total length midpoint by upstream side upstream side pipe arrangement in spray water.
In the manner, make water jet device in fuel gas pipe arrangement, than total length midpoint by upstream side upstream side pipe arrangement in spray water, it is possible to obtain the time for evaporation during the water injecting fuel gas arrives fuel device, therefore, it is possible to suppression water droplet flows into burner from fuel-supplying unit.
It is characterised by for the fuel-supplying unit as second method reached involved by the utility model of described purpose, on the basis of the first fuel-supplying unit, described fuel-supplying unit is also equipped with from described upstream side pipe arrangement branch and makes described fuel gas return the backflow pipe arrangement of described gas compressor, and described water jet device sprays water than before branch by upstream side of the position of described backflow pipe arrangement branch in pipe arrangement in described upstream side pipe arrangement.
In the manner, by configuring water jet device in the position of the branch than fuel gas pipe arrangement by upstream side, thus water jet device is set to more upstream side.
It is characterised by for the fuel-supplying unit as Third Way reached involved by the utility model of described purpose, on the basis of the first fuel-supplying unit, described fuel-supplying unit is also equipped with from described upstream side pipe arrangement branch and makes described fuel gas return the backflow pipe arrangement of described gas compressor, described water jet device in described upstream side pipe arrangement, spray water than after the branch of the position downstream of described backflow pipe arrangement branch in pipe arrangement.
In the manner, by spraying water in pipe arrangement after the branch to the position downstream of the branch than fuel gas pipe arrangement, it is possible to fuel gas in the fuel gas carried towards fuel device and the fuel gas returning gas compressor, towards fuel device conveying and supply feedwater.
It is characterised by for the fuel-supplying unit as fourth way reached involved by the utility model of described purpose, on the basis of the first fuel-supplying unit, described fuel-supplying unit is also equipped with capture unit, described capture unit in described fuel gas pipe arrangement, than the bending section of water eject position downstream of described water jet device, on the basis of described bending section, the extending direction of described fuel gas pipe arrangement along upstream side extends from described bending section.
In the manner, utilize the fuel gas in bending section different from the inertia of the foreign body in fuel gas, thus in inertia capture unit, catch foreign body, suppress foreign body to be mixed into fuel device.
It is characterised by for the fuel-supplying unit as the 5th mode reached involved by the utility model of described purpose, on the basis of the first fuel-supplying unit, described water jet device includes the multiple nozzles being mist sprayed described water in described fuel gas pipe arrangement.
In the manner, it is possible to be supplied uniformly across substantial amounts of water to fuel gas.
It is characterised by for the fuel-supplying unit as the 6th mode reached involved by the utility model of described purpose, on the basis of the 5th fuel-supplying unit, multiple described nozzles diverse location from the tube axial direction of described fuel gas pipe arrangement sprays described water.
In the manner, utilize the space of tube axial direction can supply substantial amounts of water.
Being characterised by for the fuel-supplying unit as the 7th mode reached involved by the utility model of described purpose, on the basis of the 6th fuel-supplying unit, multiple described nozzles diverse location from the circumference of described fuel gas pipe arrangement sprays described water.
In the manner, it is possible to the water suppressing multiple nozzle to supply is bonded to each other.
It is characterised by for the fuel-supplying unit as eighth mode reached involved by the utility model of described purpose, on the basis of the 5th fuel-supplying unit, the diverse location in circumference in multiple described nozzles same position from the tube axial direction of described fuel gas pipe arrangement, described fuel gas pipe arrangement sprays described water.
In the manner, it is possible to supply substantial amounts of water from the identical position of the tube axial direction of fuel gas pipe arrangement, and the water that multiple nozzle can be suppressed to supply is bonded to each other.
It is characterised by for the fuel-supplying unit as the 9th mode reached involved by the utility model of described purpose, in the five to eight on the basis of any one fuel-supplying unit, described water jet device has the multiple nozzle sets comprising more than one nozzle respectively, and each described nozzle sets possesses the water emitted dose regulation portion that the emitted dose to the water that described nozzle sets is sprayed is adjusted.
In the manner, it is possible to each nozzle sets is controlled the emitted dose of water.
Being characterised by for the fuel-supplying unit as the tenth mode reached involved by the utility model of described purpose, described gas-turbine installation has: the fuel-supplying unit of either type in the first to nine mode；Described gas turbine；nullAnd control the control device of described fuel-supplying unit，Described fuel-supplying unit has the fuel gas flow control valve that the flow to the fuel gas supplied to described burner is adjusted，Described control device has: described water jet device controls the water jet controling part of the injection of water、Control the fuel gas control portion of the aperture of described fuel gas flow control valve，Described fuel gas control portion has temperature regulation control portion，Described temperature regulation control portion has temperature regulation line，Described temperature regulation line determines the mutual relation of two parameters of the temperature constant of the burning gases at the combustion air inlet of the turbine making described gas turbine，Described temperature regulation control portion determines the flow of the fuel gas supplied to described burner in the way of making two parameters be positioned on described temperature regulation line，And the aperture that flow that described fuel gas flow control valve is made the instruction described fuel gas to become and determine is suitable，Described temperature regulation control portion has: described water jet controling part to described water jet device instruction water injection time non-ejection time temperature regulation line、And described water jet controling part is to temperature regulation line during injection during the instruction water injection of described water jet device，When described water jet controling part is not to the instruction water injection of described water jet device，When using described non-ejection, temperature regulation line is to determine the flow of described fuel gas，When described water jet controling part is to the instruction water injection of described water jet device，When using described injection, temperature regulation line is to determine the flow of described fuel gas.
In the manner, in order to make the temperature constant of the burning gases at the combustion air inlet of the turbine of gas turbine, based on a determination that make the temperature regulation line of the mutual relation of two parameters of the temperature constant of the burning gases at combustion air inlet, determine the flow of the fuel gas to burner supply so that two parameters are positioned on temperature regulation line, thereby, it is possible to control the flow of the fuel gas supplied to burner according to the amount of the water sprayed to fuel gas.It should be noted that two parameters be with the combustion air inlet of turbine at the temperature of burning gases have the parameter of dependency.
Utility model effect
According to a mode of the present utility model, it is possible to suppression water droplet flows into burner.The optimization of performance and the risk bringing foreign body when suppressing and operate in burner into can also be realized simultaneously.
Accompanying drawing explanation
Fig. 1 is the system diagram of the gas-turbine installation in the embodiment involved by this utility model.
Fig. 2 is the schematic drawing that the fuel gas pipe arrangement in the embodiment involved by this utility model is overall.
Fig. 3 is the main portion sectional view of the fuel gas pipe arrangement in the embodiment involved by this utility model.
Fig. 4 is the main portion sectional view of the fuel gas pipe arrangement in the embodiment involved by this utility model.
Fig. 5 is the major part side view of the fuel gas pipe arrangement in the second variation of the embodiment involved by this utility model.
Fig. 6 is the main portion sectional view of the fuel gas pipe arrangement in the 3rd variation of the embodiment involved by this utility model.
Fig. 7 is the main portion sectional view of the fuel gas pipe arrangement in the 4th variation of the embodiment involved by this utility model.
Fig. 8 is the enlarged drawing in the VIII portion in Fig. 7.
Fig. 9 is the main portion sectional view of the fuel gas pipe arrangement in the 5th variation of the embodiment involved by this utility model.
Figure 10 is the X-X line sectional view in Fig. 9.
Figure 11 is the XI-XI line sectional view in Fig. 9.
Figure 12 is the main portion sectional view of the fuel gas pipe arrangement in the 6th variation of the embodiment involved by this utility model.
Figure 13 is the XIII-XIII line sectional view in Figure 12.
Figure 14 is the XIV-XIV line sectional view in Figure 12.
Figure 15 is the main portion sectional view of the fuel gas pipe arrangement in the 7th variation of the embodiment involved by this utility model.
Figure 16 is the XVI line sectional view in Figure 15.
Figure 17 is the main portion sectional view of the fuel gas pipe arrangement in the 8th variation of the embodiment involved by this utility model.
Figure 18 is the coordinate diagram of the function in the fuel gas control portion that the embodiment involved by this utility model is described.
Figure 19 is the coordinate diagram of the function in the fuel gas control portion that the embodiment involved by this utility model is described.
Description of reference numerals
2 gas turbines
10 turbines
10a turbine rotor
10b turbine case
11 effluent air temp meters
20 air compressors
20a air compressor rotor
20b air compressor shell
21 burners
22 piezometers
30 electromotors
31 gas turbine rotors
32 variators
41 fuel gas pipe arrangements
42 upstream side pipe arrangements
Pipe arrangement before 42a branch
Pipe arrangement after 42b branch
43 downstream pipe arrangements
44 backflow pipe arrangements
Pipe arrangement before 45 boostings
46 fuel gas flow control valves
47 inertial filters
48 return flow regulation valves
49 coolers
50 water jet devices
51 Water flow adjusting valves
52 nozzle sets
52a nozzle
54 water pressure regulator
60 fuel gas compressors
60a fuel gas compressors rotor
60b gas compressor shell
70 control device
71 fuel gas control portions
71a temperature regulation control portion
72 water jet controling parts
142 flanged pipes
142a flange
142b flange
142c protective bulkhead
142d welding position
143 bending sections
150 water jet devices
151 Water flow adjusting valves
152 nozzle sets
152a nozzle
152b loop pipe
154 water pressure regulator
251 Water flow adjusting valves
252 nozzle sets
252a nozzle
252b loop pipe
350 water jet devices
351 Water flow adjusting valves
352 nozzle sets
352a nozzle
352b loop pipe
451 Water flow adjusting valves
452 nozzle sets
452a nozzle
452b loop pipe
550 water jet devices
551 Water flow adjusting valves
552 nozzle sets
552a nozzle
552b loop pipe
554 water pressure regulator
651 Water flow adjusting valves
652 nozzle sets
652a nozzle
652b loop pipe
654 water pressure regulator
Detailed description of the invention
Below, referring to the drawings an embodiment of the present utility model and its variation are described in detail.
According to Fig. 1～Fig. 4, the gas-turbine installation of an embodiment of the present utility model is illustrated.
As it is shown in figure 1, the gas-turbine installation of present embodiment possesses: gas turbine 2, fuel-supplying unit 40, control device 70.
Gas turbine 2 possesses: compressed-air actuated air compressor 20；Fuel combustion is made to generate the burner 21 of burning gases in by air compressor 20 by the air A after compressing；And by the turbine 10 of combustion gases drive.
Further, gas turbine 2 possesses: the electromotor 30 that generated electricity by the driving of turbine 10, effluent air temp meter 11, piezometer 22.
Control device 70 fuel-supplying unit 40 is controlled.
Turbine 10 has: the turbine rotor 10a that rotated by burning gases, turbine rotor 10a is covered as turbine case 10b that can rotate.
Air compressor 20 has: air compressor rotor 20a, air compressor rotor 20a is covered as the air compressor shell 20b that can rotate.
Turbine rotor 10a and air compressor rotor 20a is integrally forming and constitutes gas turbine rotor 31.
Electromotor 30 has: generator amature, this generator amature is covered as the generator casing that can rotate.Generator amature links with gas turbine rotor 31.Therefore, when gas turbine rotor 31 rotates, generating rotor rotates the most integratedly.
Fuel-supplying unit 40 supplies fuel gas Gf to burner 21.
Fuel-supplying unit 40 possesses: pipe arrangement 45 before the boosting of the fuel gas Gf before supply boosting；Make the fuel gas compressors 60 boosted by the fuel gas Gf of pipe arrangement 45 supply before boosting；Fuel gas pipe arrangement 41 for the fuel gas Gf circulation after boosting；The water jet device 50 of the fuel gas Gf injection water after boosting；And make the fuel gas Gf after boosting return the backflow pipe arrangement 44 of the front pipe arrangement 45 of boosting.
Further, fuel-supplying unit 40 possesses: catch the inertial filter 47 of foreign body, regulation to the fuel gas flow control valve 46 of the flow of the fuel gas Gf of burner 21 supply.On the fuel gas pipe arrangement 41 of the water eject position downstream of the ratio water jet device 50 that inertial filter 47 and fuel gas flow control valve 46 are located in fuel gas pipe arrangement 41.
Fuel gas compressors 60 possesses: fuel gas compressors rotor 60a, fuel gas compressors rotor 60a is covered as the gas compressor shell 60b that can rotate.Fuel gas compressors rotor 60a is mechanically connected via variator 32 with generator amature or gas turbine rotor 31 and rotates.In the present embodiment, use decelerator as variator 32.Fuel gas compressors rotor 60a can also be made not to be connected with generator amature or gas turbine rotor 31, and be connected with the driving source additionally arranged and make it rotate.
The fuel gas compressors 60 rotation by fuel gas compressors rotor 60a, at the fuel gas Gf that internal compression is supplied by the front pipe arrangement 45 that boosts, the fuel gas Gf after fuel gas pipe arrangement 41 conveying boosting.
In present embodiment, as fuel gas Gf, the BFG (Blast Furnace Gas) produced as fuel gas low in calories from blast furnace of iron-smelter etc. is supplied to fuel-supplying unit 40, but the kind of fuel gas does not limit.
Fuel gas pipe arrangement 41 is the pipe arrangement being connected between fuel gas compressors 60 with burner 21.Thus, the fuel gas Gf after being boosted by fuel gas compressors 60 is supplied to burner 21 via fuel gas pipe arrangement 41.Generally, gas turbine 2 possesses multiple burner 21, and therefore fuel gas pipe arrangement 41 is connected with multiple burners 21 in downstream.In this case, the downstream of fuel gas pipe arrangement 41 is branched off into multiple, is connected respectively with multiple burners 21.
As shown in Figure 1 and Figure 2, fuel gas pipe arrangement 41 includes: lean on the upstream side pipe arrangement 42 of upstream side and the downstream pipe arrangement 43 of the midpoint downstream than total length than the midpoint of total length.That is, total length (La+Lb) being divided in the fuel gas pipe arrangement 41 of La=Lb, the part of length La of upstream side is upstream side pipe arrangement 42, and the part of length Lb in downstream is downstream pipe arrangement 43.
One end of backflow pipe arrangement 44 is connected with the branched halfway of fuel gas pipe arrangement 41.In this case, backflow pipe arrangement 44 is from upstream side pipe arrangement 42 branch.
The other end of backflow pipe arrangement 44 is connected with pipe arrangement 45 before boosting via cooler 49.Thus, in the fuel gas Gf in fuel gas pipe arrangement 41, not to burner 21 supply fuel gas Gf via backflow pipe arrangement 44 and return boosting before pipe arrangement 45.Fuel gas Gf after return flows into fuel gas compressors 60 via pipe arrangement 45 before boosting, is again boosted, then carries to fuel gas pipe arrangement 41.
Backflow pipe arrangement 44 is possessing the return flow regulation valve 48 that the flow to fuel gas Gf is adjusted between branch's connecting portion to cooler 49.
Water jet device 50 in fuel gas pipe arrangement 41, in upstream side pipe arrangement 42, i.e. than injection water in upstream side pipe arrangement 42 by upstream side of the midpoint of total length.
As it is shown on figure 3, the water jet device 50 of present embodiment possesses: comprise the nozzle sets 52 of the more than one nozzle 52a being mist sprayed water；Regulation is to the Water flow adjusting valve 51 of the flow of the water of nozzle sets 52 supply；Regulation is to the water pressure regulator 54 of the pressure of the water of nozzle sets 52 supply.
Water flow adjusting valve 51 and water pressure regulator 54 regulate the emitted dose of the water that nozzle sets 52 is sprayed.
The water that in nozzle 52a pipe arrangement 42 to the upstream side, injection is vaporific.It addition, nozzle 52a is towards the direction injection water of the flowing of fuel gas Gf.Thus, water jet device 50 can be supplied uniformly across water to fuel gas Gf.
As long as water pressure regulator 54 can apply pressure to the water Wi supplied to water jet device 50, arbitrary mechanism can be used, for example, it is possible to only use pump, it is possible to use by the mechanism of pressure-regulating valve with pump combination.
In the case of present embodiment, in water jet device 50 pipe arrangement 42 to the upstream side, than injection water in pipe arrangement 42b after the branch of the position downstream of backflow pipe arrangement 44 branch.
As in figure 2 it is shown, the fuel gas pipe arrangement 41 of pipe arrangement 42b is along the snakelike setting of vertical direction and horizontal direction after comprising branch.As long as upstream side pipe arrangement 42 just can, water jet device 50 can after the branch of snakelike setting pipe arrangement 42b optional position injection water.For example, it is possible to the position P flowed along vertical direction down to fuel gas Gf1, the vertical position P flowed upward of fuel gas Gf2, the position P that flows in the horizontal direction of fuel gas Gf3Optional position injection water.
As shown in Figure 4, inertial filter 47 is set to, at the bending section 143 of downstream pipe arrangement 43 on the basis of bending section 143 along upstream side downstream pipe arrangement 43 extending direction extend.
The inertial filter 47 constituted like this can utilize the fuel gas Gf in bending section 143 different from the inertia of the foreign body Cnt in fuel gas Gf, catches foreign body, suppress foreign body to be mixed into fuel device in inertial filter 47.
The outlet of the burning gases of turbine 10 is located at by effluent air temp meter 11, and detects the temperature of the exhaust gas as burning gases discharged from turbine 10, i.e. outlet temperature Tex of turbine 10.The compressed air stream that the compressed air that piezometer 22 is located between the outlet of air compressor 20 and the compressed air inlet of burner 21 is flowed.The pressure Pcs of the piezometer 22 air to importing burner 21 from air compressor 20 detects.
Control device 70 to be made up of the computer system with CPU, storage part, I/O portion etc..Control device 70 functionally to possess: comprise temperature regulation the fuel gas control portion 71 of control portion 71a, water jet controling part 72.
Fuel gas control portion 71 receives and is respectively detected signal by what effluent air temp meter 11 and piezometer 22 detected, and regulates control portion 71a by temperature, determines the flow of the optimal fuel gas Gf supplied to burner 21.Fuel gas control portion 71, by sending control signal to fuel gas flow control valve 46, indicates to become the aperture that the flow of determined fuel gas is suitable to fuel gas flow control valve 46.
Water jet controling part 72 sends control signal to Water flow adjusting valve 51, to become to controlling that device 70 inputs or by control device 70 setting themselves water emitted dose.
If water emitted dose can be controlled by the control of water pressure regulator 54, then can also send control signal to water pressure regulator 54, to become to controlling that device 70 inputs or by control device 70 setting themselves water emitted dose.
The fuel gas control portion 71 and the water jet controling part 72 that control device 70 can be constituted integratedly or individually by electric loop or electronic loop.
Effect to present embodiment illustrates.
In the fuel-supplying unit 40 of embodiment, make water jet device 50 in fuel gas pipe arrangement 41, than spray water in upstream side pipe arrangement 42 by upstream side of the midpoint of total length, thus comprise the fuel gas Gf of water and at least circulate distance corresponding with the length of downstream pipe arrangement 43.Thus, the fuel gas Gf comprising water at least can obtain, during the distance corresponding with the length of downstream pipe arrangement 43 that circulate, the time evaporated the water.
Therefore, it is possible to suppression water droplet flows into burner 21 from fuel-supplying unit 40.
Below, according to Fig. 1 and Fig. 5～Figure 17, modified embodiment of the present embodiment is illustrated.
As the first variation, water jet device 50 can to the upstream side in pipe arrangement 42, than injection water in pipe arrangement 42a before branch by upstream side of the position of backflow pipe arrangement 44 branch.I.e., it is possible to replace the water jet device 50 surrounded by the dotted line of Fig. 1, and the water jet device 50 surrounded by the double dot dash line of Fig. 1 is utilized in pipe arrangement 42a, to spray water before branch.By spraying water in pipe arrangement 42a before branch, it is possible to more upstream side spray jetting.If to more upstream side spray jetting, then before arriving fuel device, water can evaporate further, therefore, it is possible to suppression water droplet flows into burner from fuel-supplying unit further.
On the other hand, if as an above-mentioned shown embodiment of the present utility model, utilize the water jet device 50 that surrounded by the dotted line of Fig. 1 in pipe arrangement 42b, to spray water after branch, then can the fuel gas Gf of opposed firing device 21 conveying and in returning the fuel gas Gf of fuel gas compressors 60, to the fuel gas Gf of burner 21 conveying for feedwater.If can the fuel gas Gf of opposed firing device 21 conveying for feedwater, then the major part of the water of supply can be imported to burner 21, therefore the control of quantity delivered to the water of burner 21 conveying becomes simple.If it addition, can opposed firing device 21 conveying fuel gas Gf for feedwater, then can suppress water to backflow pipe arrangement 44 flow out, be mixed into.
Therefore, the situation spraying water after branch in pipe arrangement 42b and the situation spraying water before branch in pipe arrangement 42a have identical favourable effect, on the other hand it is respectively provided with intrinsic favourable effect, therefore can select required structure according to applied environment, specification for fuel-supplying unit 40.
As the second variation, as shown in Figure 5, it is also possible to be made up of a part for the upstream side pipe arrangement 42 near nozzle sets 52 flanged pipe 142 with the flange 142a and flange 142b that can carry out dismounting connection based on screw threads for fastening.
Upstream side pipe arrangement 42 near nozzle sets 52 is it some times happens that the corrosion (erosion) that causes because of the water of injection.In this case, the pipe arrangement of the midway of upstream side pipe arrangement 42 near nozzle sets 52 it is made up of flanged pipe 142.If being made up of flanged pipe 142, even if then corroding in flanged pipe 142, repairing and the maintenance of fuel-supplying unit 40 just can be carried out simply by changing flanged pipe 142.
In the case of arranging flanged pipe 142, water jet device 50 sprays the position of water in being also located at upstream side pipe arrangement 42 in fuel gas pipe arrangement 41, that comprise flanged pipe 142.That is, water jet device 50 with the length of flanged pipe 142 independently in fuel gas pipe arrangement 41, the top trip in the midpoint side spray jetting of the ratio total length that comprises flanged pipe 142.
As the 3rd variation, as shown in Figure 6, it is also possible to the inwall of the upstream side pipe arrangement 42 near nozzle sets 52 arranges protective bulkhead 142c.Protective bulkhead 142c in the inwall of upstream side pipe arrangement 42, the complete cycle of tube axial direction Dz specific length and arrange.
Herein, tube axial direction Dz is the tube axial direction of fuel gas pipe arrangement 41.Below, the tube axial direction of fuel gas pipe arrangement 41 is set to Dz, circumference is set to Dc, radially will be set to Dr.
If the inwall at upstream side pipe arrangement 42 arranges protective bulkhead 142c, if not after the most at least thickness reduces amount corresponding with the thickness of protective bulkhead 142c, the corrosion of upstream side pipe arrangement 42 just will not occur.Thereby, it is possible to extend the upstream side pipe arrangement 42 life-span to corrosion.
Further, if protective bulkhead 142c uses thickness to reduce the material that patience is high, then the upstream side pipe arrangement 42 life-span to corrosion can be extended further.The material reducing patience high as thickness can enumerate rustless steel.
As shown in Figure 6, protective bulkhead 142c is by welding welding position 142d, thus is fixed on the inwall of upstream side pipe arrangement 42.
As the 4th variation, as it is shown in fig. 7, protective bulkhead 142c can also be fixed on inwall by screw 142e from the inner side of upstream side pipe arrangement 42.In the case of fixing by screw 142e, as shown in Figure 8, it is threadably secured in the way of the most through upstream side pipe arrangement 42 from the inner side of upstream side pipe arrangement 42.
Water jet device can also arrange multiple nozzle sets comprising more than one nozzle.Hereinafter the variation of the situation arranging multiple nozzle sets is illustrated.
As the 5th variation, the water jet device 150 shown in Fig. 9～Figure 11 is provided with on upstream side pipe arrangement 42: the nozzle sets 152 that comprises multiple nozzle 152a and loop pipe 152b, the nozzle sets 252 comprising multiple nozzle 252a and loop pipe 252b.Herein, in order to easily compare with Figure 10, Figure 11 eliminates the most visible multiple nozzle 152a.
Water jet device 150 is also equipped with: the Water flow adjusting valve 151 being adjusted the flow of the water supplied to nozzle sets 152；The Water flow adjusting valve 251 that the flow of the water supplied to nozzle sets 252 is adjusted；And the water pressure regulator 154 that the pressure of the water supplied to nozzle sets 152 and nozzle sets 252 is adjusted.
Pressurizeed by water pressure regulator 154 to the water Wi of water jet device 150 supply, supply with Water flow adjusting valve 251 branch to Water flow adjusting valve 151.
Therefore, in this variation, each nozzle sets is arranged Water flow adjusting valve, regulate the emitted dose of the water of nozzle sets injection.
In this variation, nozzle sets 152 possesses: circumferentially Dc surrounds the loop pipe 152b and four nozzle 152a that circumferentially Dc is arranged equably of upstream side pipe arrangement 42 periphery.Each four nozzle 152a are to extend to from loop pipe 152b towards the direction of pipe axle Ap and in the way of the direction inclination of fuel gas Gf flowing.Four respective front ends of nozzle 152a from the periphery of upstream side pipe arrangement 42 towards the tube wall of internal run-through upstream side pipe arrangement 42.
Thus, the water to water jet device 150 supply respectively automatically supplies to four nozzle 152a via loop pipe 152b, sprays in four the respective front end of nozzle 152a pipe arrangements 42 to the upstream side.
Further, nozzle 152a sprays vaporific water by the direction of the interior flowing towards fuel gas Gf of pipe arrangement 42 to the upstream side, it is possible to be supplied uniformly across water to fuel gas Gf.
Nozzle sets 252 also possesses: circumferentially Dc surrounds the loop pipe 252b and four nozzle 152a that circumferentially Dc is arranged equably of upstream side pipe arrangement 42 periphery, is constituted in the way of identical with nozzle sets 152.
As it is shown in figure 9, four nozzle 252a are located at the downstream of upstream side pipe arrangement 42 relative to four nozzle 152a.It addition, as shown in Fig. 9～Figure 11, the configuration of the circumferential Dc of four nozzle 252a is differently configured with the circumferential Dc's of four nozzle 152a.In this variation, the configuration being configured as the circumferential Dc relative to four nozzle 152a of the circumferential Dc of four nozzle 252a have rotated the configuration of 45 degree.
Therefore, nozzle 152a and nozzle 252a from tube axial direction Dz separate position and circumferentially Dc stagger 45 degree position injection water.
In this variation, nozzle 152a and nozzle 252a staggers on circumference Dc, therefore, it is possible to the vaporific water suppressing adjacent nozzle sets to spray each other combines.It addition, utilize the space of tube axial direction, it is provided with multiple nozzle sets along tube axial direction, therefore, it is possible to supply substantial amounts of water.
As the 6th variation, it is also possible to be structure as the water jet device 350 shown in Figure 12～Figure 14.Water jet device 350 is provided with on upstream side pipe arrangement 42: the nozzle sets 352 that comprises multiple nozzle 352a and loop pipe 352b, the nozzle sets 452 comprising multiple nozzle 452a and loop pipe 452b.
Water jet device 350 is also equipped with: the Water flow adjusting valve 351 being adjusted the flow of the water supplied to nozzle sets 352；The Water flow adjusting valve 451 that the flow of the water supplied to nozzle sets 452 is adjusted；And the water pressure regulator 154 that the pressure of the water supplied to nozzle sets 352 and nozzle sets 452 is adjusted.
The water supplied by water pressure regulator 154 is supplied with nozzle sets 452 branch to Water flow adjusting valve 351.
Therefore, in this variation, each nozzle sets is arranged Water flow adjusting valve, regulate the emitted dose of the water of nozzle sets injection.
Nozzle sets 352 and nozzle sets 452 are also the structures identical with nozzle sets 152 and nozzle sets 252, but difference is, in the case of this variation, as shown in Figure 12～Figure 14, the configuration of the circumferential Dc of nozzle 452a is identical with the configuration of the circumferential Dc of nozzle 352a.
Therefore, identical on the position separated on tube axial direction Dz and circumference Dc for nozzle 352a and nozzle 452a position injection water.
In this variation, even if only existing limited space in the circumferential, utilizing the space of tube axial direction to be provided with multiple nozzle sets along tube axial direction, also therefore being able to supply substantial amounts of water.
As the 7th variation, it is also possible to be structure as the water jet device 550 shown in Figure 15～Figure 16.Water jet device 550 is provided with on upstream side pipe arrangement 42: the nozzle sets 552 that comprises multiple nozzle 552a and loop pipe 552b, the nozzle sets 652 comprising multiple nozzle 652a and loop pipe 652b.
Nozzle sets 552 and nozzle sets 652 are also the structures identical with nozzle sets 152 and nozzle sets 252, but difference is, in the case of this variation, as shown in Figure 15～Figure 16, nozzle sets 552 and nozzle sets 652 are closely arranged each other on tube axial direction Dz.Difference also resides in, as shown in figure 15, consistent at the position PN on identical tube axial direction Dz by the front end of nozzle 552a and the front end of nozzle 652a in the way of extend.
Therefore, four nozzle 552a and four nozzle 652a are from the identical position PN of tube axial direction Dz and the position injection water of 45 degree of mutually staggering on circumference Dc.
In this variation, water pressure regulator 554 is connected with nozzle sets 552.Therefore, to the water Wi of water jet device 550 supply by utilizing water pressure regulator 554 pressurization to regulate to the most constant pressure, thus supply to nozzle sets 552 with constant flow.The pressure now regulated is set to, and makes each nozzle 552a of nozzle sets 552 reach to be able to maintain that pressure as the suitable emitted dose of the injection of good vaporific water.
In the same manner, water pressure regulator 654 is connected with nozzle sets 652.Therefore, to the water Wi of water jet device 550 supply by utilizing water pressure regulator 654 pressurization to regulate to the most constant pressure, thus with constant flow to nozzle sets 652 for feedwater.The pressure now regulated is set to, and makes each nozzle 652a of nozzle sets 652 reach to be able to maintain that pressure as the suitable emitted dose of the injection of good vaporific water.
Water pressure regulator 554 and water pressure regulator 654 are configured to, it is possible to ON/OFF (open/close) independently.I.e., can select to be set to the first mode of " water pressure regulator 554 and water pressure regulator 654 both sides are set to ON ", be set to second pattern of " side of water pressure regulator 554 or water pressure regulator 654 is set to ON, and the opposing party is set to OFF ", be set to the 3rd pattern these three pattern of " water pressure regulator 554 and water pressure regulator 654 both sides are set to OFF ".Herein, ON refers to, water pressure regulator is the state of action in the way of pressurizeing water, and OFF refers to, water pressure regulator is the state of action in the way of not pressurizeing water.
Therefore, in this variation, even if not changing the pressure of water pressure regulator or being not provided with Water flow adjusting valve, by selecting three patterns, it is also possible to the emitted dose (comprising 0) of the water of injection in pipe arrangement 42 to the upstream side is adjusted to three phases.
If being set to select the mode of three patterns like this, the most each nozzle 552a and each nozzle 652a is able to maintain that suitable emitted dose, and selects the emitted dose of the water of the interior injection of pipe arrangement 42 to the upstream side.And, according to this variation, there is the injection being able to maintain that better vaporific water and the effect of emitted dose regulating water.
As the 8th variation, in the case of changing to a certain extent and also being able to maintain the injection of good vaporific water to the flow of nozzle sets 552, the water of nozzle sets 652 supply, it is also possible to constitute as Figure 17.It is with the 7th different point of variation, in the case of this variation, water pressure regulator 554 and Water flow adjusting valve 551 is connected with nozzle sets 552, water pressure regulator 654 and Water flow adjusting valve 651 are connected with nozzle sets 652.In this variation, each nozzle sets is arranged water pressure regulator and Water flow adjusting valve, regulate the emitted dose of the water of nozzle sets injection.
According to Figure 18 and Figure 19, the function controlling device 70 is illustrated.
Figure 18 is the coordinate diagram representing temperature regulation line, and this temperature regulation line determines the mutual relation of two parameters of the temperature constant of the burning gases at the combustion air inlet of the turbine 10 making gas turbine 2.Herein, use pressure Pcs and outlet temperature Tex as two parameters, and show the mutual relation of pressure Pcs and outlet temperature Tex.Representing that the transverse axis of coordinate diagram of this temperature regulation line shows the pressure Pcs of the air importing burner 21 from air compressor 20, the longitudinal axis shows outlet temperature Tex of turbine 10.It addition, Qw is the emitted dose of the water from water jet device 50 ejection, uses and input or by the value controlling device 70 setting themselves to control device 70.
The temperature regulation line of Figure 18 is to represent for making the inlet temperature of the burning gases of turbine 10 reach the pressure Pcs of desired value θ o and the coordinate diagram of the relation of outlet temperature Tex for each emitted dose of water.
Therefore, if the flow of regulation fuel gas is so that pressure Pcs and outlet temperature Tex are positioned on each temperature regulation line, then the inlet temperature of the burning gases of turbine 10 can be remained desired value θ o.
Such as, the temperature regulation line of the Qw=0 in the coordinate diagram of Figure 18 represents, the emitted dose of water: (not when water jet device 50 sprays water) in the case of Qw=0, in order to the inlet temperature of the burning gases of turbine 10 is adjusted to the pressure Pcs needed for desired value θ o and the relation of outlet temperature Tex.
It addition, the temperature regulation line shown in Qw=Qx represents, the emitted dose of water: in the case of Qw=Qx, for the inlet temperature of the burning gases of turbine 10 is adjusted to the pressure Pcs needed for desired value θ o and the relation of outlet temperature Tex.
Herein, the process to the temperature regulation line set shown in Qw=Qx illustrates.
The temperature regulation line of the Qw=Qx of Figure 18 is equivalent to, and makes the inlet temperature of the burning gases of turbine 10 in the case of Qw=0 become temperature regulation line as the temperature more slightly higher than desired value θ o.Therefore, the temperature regulation line than Qw=0 of the temperature regulation line shown in Qw=Qx offsets up.
Generally, when the emitted dose making water becomes Qw=Qx from Qw=0, the specific heat of burning gases between entrance to outlet at the combustion air inlet of turbine 10 uprises, and therefore the inlet temperature of the burning gases of turbine 10 reduces.Therefore, in order to the inlet temperature of the burning gases of turbine 10 maintains desired value θ o, need to be set to than temperature slightly higher on desired value θ o surface.
Coordinate diagram based on Figure 19 can obtain the slightly higher temperature of setting.As it has been described above, when becoming Qw=Qx from Qw=0, need to be set as the temperature more slightly higher than on setting value surface.Herein, using the temperature difference of temperature slightly higher on desired value θ o and surface as temperature adjusting deviation θ c.Figure 19 is, transverse axis is set to Qw, the longitudinal axis is set to temperature adjusting deviation θ c, and shows the temperature adjusting deviation θ c coordinate diagram relative to Qw.
Therefore, by the temperature adjusting deviation θ x during Qw=Qx obtained according to the coordinate diagram of Figure 19 is added on desired value θ o, thus obtain the inlet temperature of the burning gases of turbine 10 in the case of Qw=0 and become temperature regulation line as θ o+ θ x, and be set as the temperature regulation line of Qw=Qx.
Then, the fuel gas control portion 71 comprising temperature regulation control portion 71a controls the valve opening of fuel gas flow control valve 46, remains predetermined desired value θ o with the inlet temperature of the burning gases of the turbine 10 flowed into from burner 21 by burning gases.
Temperature regulation control portion 71a prestores the temperature regulation line matched with each Qw.Or, it is also possible to by implementing to control the program of device 70, obtain the temperature regulation line matched with each Qw.
The fuel gas control portion 71 comprising temperature regulation control portion 71a controls fuel gas flow control valve 46, to become the pressure Pcs and outlet temperature Tex matched with each temperature regulation line.
That is, when water jet device 50 is not indicated water to spray by water jet controling part 72 (during Qw=0), when regulating the i.e. non-ejection of line according to the temperature of Qw=0, temperature regulation line is controlled with determining the flow of fuel gas.
It addition, when water jet device 50 is indicated water to spray by water jet controling part (during Qw=Qx), regulate temperature regulation line when line i.e. sprays according to the temperature of Qw=Qx and be controlled with determining the flow of fuel gas.
The temperature regulation line matched with each Qw can also be replaced, and store the temperature regulation data being made up of the table data of each Qw.In this case, comprise the fuel gas control portion 71 of temperature regulation control portion 71a, the table data matched according to value Qw with input or setting, control the valve opening of fuel gas flow control valve 46, so that the inlet temperature of the burning gases of turbine 10 keeps predetermined higher limit.
Above by reference to accompanying drawing, embodiment of the present utility model is described in detail, but concrete structure has been not limited to above-mentioned embodiment, also comprises the design alteration etc. without departing from main scope of the present utility model.
Inertial filter is not limited to the bending section of downstream pipe arrangement 43, as long as the ratio position downstream, position of water jet device ejection water, then can also be arranged on the bending section of upstream side pipe arrangement 42.
Being sprayed against device and be located at before branch in the case of pipe arrangement 42a, branch's connecting portion of backflow pipe arrangement 44 can also be located at downstream pipe arrangement 43.
The multiple nozzle sets arranged are possible not only to as the 5th～the 8th variation be arranged to 2 groups, it is also possible to be arranged to 3 groups, 4 groups or more than 4 groups.In the case of more than 3 groups nozzle sets are arranged in positions different on the tube axial direction of fuel gas pipe arrangement, identical with the variation of first and second nozzle group, it is configured to position injection water identical from circumference, it is also possible to be configured to position injection water different from circumference.Alternatively, it is also possible to be configured to circumferentially spray water towards tube axial direction from becoming interconnected position.If spraying water from becoming interconnected position, then the vaporific water sprayed each other by adjacent nozzle sets can be suppressed to combine.
The nozzle arranged in each nozzle sets is possible not only to as the 5th～the 8th variation be arranged to 4, it is also possible to be arranged to 1～3 or more than 5.And the quantity of the nozzle arranged each other in nozzle sets can be the same or different.The most nozzles are set and the most more can supply substantial amounts of water.
In 5th～the 8th variation, be provided with loop pipe in the periphery of upstream side pipe arrangement 42, as long as but can injection water in pipe arrangement 42 to the upstream side, then loop pipe can also be set in the periphery of downstream pipe arrangement 43.
Additionally, in the 5th～the 8th variation, nozzle from the periphery of upstream side pipe arrangement 42 towards the tube wall of internal run-through upstream side pipe arrangement 42, as long as but can injection water in pipe arrangement 42 to the upstream side, then can also make the periphery tube wall towards internal run-through downstream pipe arrangement 43 of nozzle side line 43 downstream.
Additionally, the situation of the BFG produced as fuel gas low in calories blast furnace used in the fuel-supplying unit of above each embodiment from iron-smelter etc. is illustrated, but can be used for fuel-supplying unit uses the situation of the COG (COKE OVEN GAS) produced as high heat fuel gas from the coke oven of coking device.Alternatively, it is also possible to the situation of the mixture for using BFG Yu COG, and, it is possible to use other fuel gas, such as, natural gas, biogas etc..
Industrial applicibility
According to the mode involved by this utility model, it is provided that the fuel-supplying unit that water droplet flows into can be suppressed to burner.
Claims (10)
1. a fuel-supplying unit, it is to the burner supply fuel gas of gas turbine, and it is special
Levy and be,
Described fuel-supplying unit possesses:
Gas compressor, it makes fuel gas boost；
Fuel gas pipe arrangement, its combustion after the conveying of described burner is boosted by described gas compressor
Material gas；And
Water jet device, its in described fuel gas pipe arrangement, than the midpoint of total length by upstream side
Injection water in upstream side pipe arrangement.
Fuel-supplying unit the most according to claim 1, it is characterised in that
Described fuel-supplying unit is also equipped with from described upstream side pipe arrangement branch and makes described fuel gas
Return the backflow pipe arrangement of described gas compressor,
Described water jet device leans on than the position of described backflow pipe arrangement branch in described upstream side pipe arrangement
Injection water in pipe arrangement before the branch of upstream side.
Fuel-supplying unit the most according to claim 1, it is characterised in that
Described fuel-supplying unit is also equipped with from described upstream side pipe arrangement branch and makes described fuel gas
Return the backflow pipe arrangement of described gas compressor,
Described water jet device in described upstream side pipe arrangement, than the position of described backflow pipe arrangement branch
Injection water in pipe arrangement after the branch of downstream.
Fuel-supplying unit the most according to claim 1, it is characterised in that
Described fuel-supplying unit is also equipped with capture unit, and described capture unit is in described fuel gas pipe arrangement
, than the bending section of water eject position downstream of described water jet device, with described bending section be
Benchmark extends along the extending direction of the described fuel gas pipe arrangement of upstream side from described bending section.
Fuel-supplying unit the most according to claim 1, it is characterised in that
It is many that described water jet device includes being mist sprayed described water in described fuel gas pipe arrangement
Individual nozzle.
Fuel-supplying unit the most according to claim 5, it is characterised in that
Multiple described nozzles diverse location from the tube axial direction of described fuel gas pipe arrangement sprays institute
State water.
Fuel-supplying unit the most according to claim 6, it is characterised in that
Multiple described nozzles diverse location from the circumference of described fuel gas pipe arrangement sprays described water.
Fuel-supplying unit the most according to claim 5, it is characterised in that
In multiple described nozzles same position from the tube axial direction of described fuel gas pipe arrangement, institute
State the diverse location in the circumference of fuel gas pipe arrangement and spray described water.
9. according to the fuel-supplying unit according to any one of claim 5 to 8, it is characterised in that
Described water jet device has the multiple nozzle sets comprising more than one nozzle respectively,
Each described nozzle sets possesses the water that the emitted dose to the water that described nozzle sets is sprayed is adjusted
Emitted dose regulation portion.
10. a gas-turbine installation, it is characterised in that
Described gas-turbine installation has:
Fuel-supplying unit according to any one of claim 1 to 9；
Described gas turbine；And
Control the control device of described fuel-supplying unit,
Described fuel-supplying unit has the flow to the fuel gas supplied to described burner to be carried out
The fuel gas flow control valve of regulation,
Described control device has: described water jet device controls the water spraying fire of the injection of water
Portion, control the fuel gas control portion of the aperture of described fuel gas flow control valve,
Described fuel gas control portion has temperature regulation control portion, and described temperature regulation control portion has
Temperature regulation line, described temperature regulation line determines the combustion air inlet of the turbine making described gas turbine
The mutual relation of two parameters of the temperature constant of the burning gases at place, described temperature regulation control portion with
The mode making two parameters be positioned on described temperature regulation line determines the fuel supplied to described burner
The flow of gas, and described fuel gas flow control valve is made instruction with the institute become Yu determine
State the aperture that the flow of fuel gas is suitable,
Described temperature regulation control portion has: described water jet device is not referred to by described water jet controling part
When showing non-ejection when water sprays, described water is sprayed by temperature regulation line and described water jet controling part
Device instruction water injection time injection time temperature regulation line, at described water jet controling part not to described water
During injection apparatus instruction water injection, when using described non-ejection, temperature regulation line is to determine described fuel gas
The flow of body, when described water jet controling part is to the instruction water injection of described water jet device, uses institute
When stating injection, temperature regulation line is to determine the flow of described fuel gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300589.1U CN205593000U (en) | 2016-04-12 | 2016-04-12 | Fuel supply equipment and gas turbine installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300589.1U CN205593000U (en) | 2016-04-12 | 2016-04-12 | Fuel supply equipment and gas turbine installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205593000U true CN205593000U (en) | 2016-09-21 |
Family
ID=56923239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620300589.1U Active CN205593000U (en) | 2016-04-12 | 2016-04-12 | Fuel supply equipment and gas turbine installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205593000U (en) |
-
2016
- 2016-04-12 CN CN201620300589.1U patent/CN205593000U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Kanagawa Prefecture, Japan Patentee after: Mitsubishi Power Co., Ltd Address before: Kanagawa Prefecture, Japan Patentee before: MITSUBISHI HITACHI POWER SYSTEMS, Ltd. |
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| CP01 | Change in the name or title of a patent holder |