JP2003120330A - Gas turbine device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas turbine device good in properties for maintenance and inspection, and weight balance. SOLUTION: This gas turbine device is provided with a gas turbine engine 1, a generator 3, an electric power converter 39, and an enclosure 2. The gas turbine engine 1 is provided with a compressor 4, a combustor 6, a turbine 5, and an exhaust unit 8. The generator 3 is connected to one end of the gas turbine engine 1 and is driven by the turbine 5. The electric power converter 39 frequency-converts output of the generator 3. The enclosure 2 stores the gas turbine engine 1, the generator 3, and the electric power converter 39. A power unit 10 including the gas turbine engine 1 and the generator 3 is arranged with a rotating center C1 thereof shifted in one side toward front and rear direction of the enclosure 2 in an upper part of inside of the enclosure. The electric power converter 39 is arranged as shifted in another side below the power unit 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas turbine device having improved maintainability / inspection.

[0002]

2. Description of the Related Art As a conventional example of a gas turbine apparatus, a gas turbine engine including a compressor, a combustor, a turbine, etc., a generator connected to the gas turbine engine, a fuel compressor, an electric power converter, etc. It is known to be housed in one enclosure. In this gas turbine device, as shown in the front view of FIG.
A power unit 210 formed by connecting the generator to the gas turbine engine is arranged in the upper center of the inside, and a power converter 239 and a fuel compressor 234 are arranged on both lower sides of the power unit 210. The installation frame 253 in which these devices are installed includes a lower frame 254, an upper frame 255, and a lower frame 2.
54 and a support column 256 connecting the upper frame 255 are configured in a cage. The power unit 210 is provided on the installation frame 253, and in the installation frame 253,
A fuel compressor 234 is provided on one side and a power converter 2 is provided on the other side of the support frame 256 in the width direction of the installation frame 253.
39 are provided respectively.

[0003]

However, in the gas turbine apparatus having such a structure, when the heavy power converter 239 is attached to and detached from the installation frame 253 for maintenance and inspection, the upper power unit 210 is removed. Therefore, it is necessary to pull out the power converter 239 to the side of the installation frame 253 using a special lifter, which makes maintenance and inspection work troublesome.

The heaviest power unit 21
Since 0 is arranged in the center in the width direction, the heavy power converter 239 is arranged on the other side, and the fuel compressor 234, which is lighter than the power converter 239, is arranged on one side, The weight balance in the left-right direction is biased.

Further, since the power unit 210 is arranged at the center in the width direction and the power converter 239 is arranged on the other side below the power unit 210, both of them are arranged so that the heat influence of the power unit 210 does not reach the power converter 239. In order to increase the distance between them, the power unit 210 has to be arranged at a high position with respect to the power converter 239, and the center of gravity of the entire device becomes high.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a gas turbine apparatus which is excellent in maintainability / inspectability and has a good weight balance.

[0007]

In order to achieve the above object, a gas turbine apparatus according to the present invention includes a gas turbine engine including a compressor, a combustor, a turbine and an exhaust unit, and one end of the gas turbine engine. And a gas turbine engine, an electric power converter for frequency-converting the output of the electric power generator, and an enclosure for accommodating the gas turbine engine, the electric power generator and the electric power converter. And a power unit including a generator is disposed eccentrically to one side in the upper part of the enclosure with the center of rotation directed in the front-back direction of the enclosure, and the power converter is arranged to the other side below the power unit. It is arranged eccentrically.

According to the gas turbine device, since the power unit is arranged laterally offset from the power converter, when the power converter is removed for maintenance and inspection, for example, by a hoist, the power converter is removed. By slightly lifting and then pulling it out to the side, it can be easily removed without being obstructed by the power unit, and the installation can be easily performed by the reverse procedure. In addition, since the power unit having a high surface temperature is located in the direction away from the power converter by the distance from the power converter that dislikes the high temperature to the side, without increasing the heat influence on the power converter, The power unit can be installed low and the stability of the device can be improved.

In a preferred embodiment of the present invention, the exhaust unit projects to the other side of the gas turbine engine.

As described above, since the gas turbine engine is located on one side in the enclosure, the exhaust unit 8 is projected into the empty space on the right side of the gas turbine engine 1 to complete the apparatus. It can be made compact.

In a preferred embodiment of the present invention, a fuel compressor is arranged below the power unit and to one side of the power converter to boost the pressure of fuel and supply the fuel to the power unit.

As described above, by disposing the fuel compressor below the heaviest power unit and to one side of the next heaviest power converter, the weight balance in the left-right direction of the device is improved.

In a preferred embodiment of the present invention, a rectangular upper frame in plan view and a part of the lower frame and the upper frame are connected to a position eccentric to one side of the rectangular lower frame in plan view. An installation frame including a pillar is provided, the power unit is attached to the upper frame, and the power converter is attached to the lower frame.

According to this structure, the power unit and the power converter can be attached to the single installation frame with good cohesion.

In a preferred embodiment of the present invention, the enclosure has a main body and a front cover provided on a drawer base housed in the main body so as to be able to be drawn forward, and the installation frame is attached to the drawer base. ing.

In such a structure, by pulling out the drawer base from the inside of the enclosure body, the power unit, the power converter and the like attached to the installation frame can be easily pulled out from the enclosure, and maintenance and inspection of the device can be performed. Can be done easily.

In a preferred embodiment of the present invention, a blower for supplying cooling air to a plurality of cooling target portions including the power unit is attached to the front surface of the installation frame,
An air reservoir for introducing cooling air from the blower and branching it to a plurality of cooling target parts is attached to the lower surface of the installation frame.

According to this structure, the cooling air sucked by the blower can be efficiently supplied to each cooling target portion.

[0019]

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2
FIG. 1A is a right front perspective view and a left front perspective view of a gas turbine device that is an embodiment of the present invention. In FIG. 1, a gas turbine device includes a gas turbine engine 1, a generator 3,
The power converter 39 and the like are housed in the enclosure 2.

The gas turbine engine 1 has a centrifugal compressor 4, a turbine 5, and an annular combustor 6 located radially outward of the turbine 5, as shown in a longitudinal sectional view in FIG.
And a rear heat exchanger 7 and an exhaust unit 8 (FIG. 1). The heat exchanger 7 exchanges heat between the compressed air A from the compressor 4 and the exhaust gas E from the turbine 5. A generator 3, which is a type of driven machine, is connected to the front surface of the compressor 4 at the front of the gas turbine engine 1, and the turbine 5 drives the generator 3. A power unit 10 is constituted by the gas turbine engine 1 and the generator 3.

In FIG. 4, a turbine rotor 62 is joined to the back surface of the impeller 61 of the compressor 4. The compressor 4 compresses the air IA taken in from the air intake 63 at the rear of the generator 3 and passes the compressed air A through the heat exchanger 7 connected to the exhaust gas outlet side at the rear of the gas turbine engine 1. It supplies to the combustor 6 and the turbine 5
Driven by. This compressor 4 has an impeller 61.
And a compressor shroud 64 formed at a position covering the impeller 61. A diffuser 65 for increasing the static pressure of the compressed air A is arranged on the radially outer side, which is the outlet side of the compressor 4. The turbine 5 includes a turbine rotor 62 and a turbine nozzle 66 that is an inlet side member of the turbine rotor 62.

The combustor 6 has a fuel nozzle 68 for injecting a gas or liquid fuel F into a combustion chamber 67 in the combustor 6, and the fuel F is sent into the combustion chamber 67 via the heat exchanger 7. It is mixed with the supplied compressed air A and burned. The high-temperature and high-pressure combustion gas G is sent from the turbine nozzle 66 to the turbine 5, and the energy of the combustion gas G drives the turbine 5. The combustor 6 has an annular shape and is arranged concentrically with the rotation axis C1 of the turbine 5. Here, the number of fuel nozzles 68 is three, and they are arranged at equal intervals in the circumferential direction of the outer circumference of the combustor 6 as shown in FIG.

The heat exchanger 7 of FIG. 4 exchanges heat between the high temperature exhaust gas E discharged from the turbine 5 of the gas turbine engine 1 and the low temperature compressed air A discharged from the compressor 4 of the gas turbine engine 1. The heat exchanger housing 70 is mounted on the rear end of the main housing 69 having a circular cross section, which accommodates the compressor 4, the combustor 6, and the turbine 5, and the bolt B2
A heat exchange core 70C having a circular transverse cross section is housed inside the heat exchanger housing 70. The core 70C is configured by arranging a plurality of flat heat transfer plates 73, which partition the first passage 71 through which the compressed air A flows and the second passage 72 through which the high-temperature exhaust gas E flows, in parallel at predetermined intervals. . An inflow port 74 for allowing the compressed air A to flow into the first passage 71 is provided on the side surface of the rear portion of the core 70C. Further, on the side surface of the front portion of the core 70C, the outlet 7 for the compressed air A passing through the first passage 71 is provided.
5 are provided.

Between the core 70C and the heat exchanger housing 70, compressed air A is supplied from the front of the core 70C to the core 70C.
An introducing passage 76 is formed through the side of the above, that is, the outside of the side surface to be introduced into the inflow port 74. A compressed air passage 77 is formed between the main housing 69 in front of the heat exchanger 7 and the annular combustor 6 to guide the compressed air A discharged from the compressor 4 to the introduction passage 76. The compressed air passage 77 is constituted by a space formed between the main housing 69 and a cylindrical member 78 arranged concentrically.
The rear end of the shroud 64 that forms the outer peripheral wall of the compressor 4 is fastened and fixed to the front end of the main housing 69 with a bolt B1.

Further, on the front surface of the heat exchanger 7, on the inner peripheral side of the compressed air passage 77, the compressed air A from the outlet 75 of the heat exchanger 7 is introduced to the combustor 6 of the gas turbine engine 1. A lead-out path 79 for vessels is formed. The lead-out path 79 extends forward from the front end of the cylindrical member 78 and the core 70C, and is arranged inside the cylindrical member 78.
And a trumpet-shaped member 80 arranged concentrically with each other. The front end of the trumpet-shaped member 80 extends to the rear end of the shroud 66 a of the turbine nozzle 66. The space surrounded by the trumpet-shaped member 80 forms an exhaust gas inflow passage 81 that allows the exhaust gas E that has exited the turbine 5 to flow into the second passage 72 of the core 70C. An exhaust port 82 for discharging the exhaust gas E passing through the second passage 72 to the exhaust unit 8 (FIG. 1) is formed on the rear surface of the heat exchanger 7.

The generator 3 has a generator rotor 83, which is a rotating shaft connected to the rotating portion (the impeller 61 and the turbine rotor 62) of the gas turbine engine 1, and a generator stator 84 arranged around the generator rotor 83. The generator stator 84 is supported on the inner circumference of a generator case 85A that is concentric with the generator rotor 83 and has a circular cross section. The front opening of the generator case 85A is covered with a front cover 85B. The generator stator 84 is a generator case 85A.
A ring-shaped core 86 fixed to the inner peripheral side of the case 85A concentrically with the case 85A, and a coil 87 wound around a plurality of teeth (teeth) protruding from the core 86 toward the inner diameter side. It A plurality of intake passages 88 penetrating in the front-rear direction are formed on the outer diameter side of the core 86 of the generator stator 84.

The rear wall 89 of the generator case 85A serves as a partition wall for partitioning the air intake 63 of the compressor 4 from the generator 3, and the inner peripheral end of the rear wall 89 and the front cover 85B. At the peripheral edge, the generator rotor 83 has a pair of bearings BR.
It is rotatably supported via 1 and BR2. An intake port 90 for introducing air from the outside into the intake passage 88 of the core 86 is provided at the center of the front end of the front cover 85B of the generator 3. Further, an exhaust port 91 for discharging the air CA introduced into the intake passage 88 to the outside of the case 85A is provided on the outer periphery of the rear end portion of the generator case 85A.

As shown in FIG. 1, the exhaust unit 8 has a silencer 92 which is vertically oriented and has an upper portion serving as an outlet.
An exhaust passage 93 that guides the exhaust gas from the exhaust port 82 of the heat exchanger 7 to the lower part of the silencer 92, and a bypass passage 94 that guides the exhaust gas from the exhaust port 82 to the lower part of the silencer 92 from the middle body part. Equipped with. As shown in FIG. 6, a butterfly valve 95 is provided in a portion where the exhaust passage 93 and the bypass passage 94 are branched from the outlet of the exhaust port 82.
3 and the bypass passage 94 are switched and supplied. In the middle of the exhaust passage 93, as shown in FIG.
The heat exchanger 96 of the boiler is inserted, and the water supply device (not shown)
The feed water supplied from the exhaust gas E by the heat exchanger 96.
Heat is exchanged with and made hot water.

As shown in the sectional view of FIG. 3, the inside of the enclosure 2 is a front first chamber 11 accommodating the air inlet 63 of the compressor 4 and the generator 3 by a partition wall 9,
A rear second chamber 12 accommodating at least the combustor 6, turbine 5 (FIG. 4), heat exchanger 7 and exhaust unit 8.
It is divided into and. As a result, the air intake 63 of the compressor 4 sucks the air in the first chamber 11.

The first chamber 11 has an upper chamber 15 for accommodating the air intake 63 of the compressor 4 and the generator 3 which is a driven machine, and an enclosure provided under the upper chamber 15 for enclosing the upper chamber 15. 2 has a lower chamber 16 having an air inlet 17 for introducing air from the outside. The air inlet 17 is provided with a louver having a sound absorbing function. The upper chamber 1
5 and the lower chamber 16 are partitioned by a partition plate 9A,
A vertical throttle passage 18 provided at the rear end of the partition plate 9A
Are in communication with each other. The throttle passage 18 is a passage that is long in the width direction of the enclosure 2. The passage length (vertical length) is substantially equal to or exceeds the wavelength of the high frequency noise (intake sound) from the gas turbine engine 1. It is set to the size. The inner wall surface of the upper chamber 15 is covered with the sound absorbing material 19.

In the lower chamber 16, the air inlet 17
A dust filter 20 facing each other is formed to form a gas-liquid separation chamber 21 having the air inlet 17 and the dust filter 20 at both ends, and a purified air chamber 22 into which the air passing through the dust filter 20 is introduced. Has been done. At the bottom of the gas-liquid separation chamber 21, a drain 23 that drains rainwater and the like accumulated on the floor is provided.

The gas in the purified air chamber 22 is sucked into the purified air chamber 22 and the gas turbine engine 1
Also, a blower 27 that supplies cooling air to the cooling target portion including the generator 3 is arranged. The inner wall surface of the purified air chamber 22 excluding the dust filter 20 is also covered with the sound absorbing material 28. A lower end of the throttle passage 18 faces the purified air chamber 22. Further, in the upper chamber 15, as shown in FIG. 2, a display panel 29 for displaying operating state data such as exhaust temperature and rotation speed of the gas turbine engine 1 and an alarm, an electronic controller 30, a system linkage protection device 31. , A breaker 32, an exciter 33, and the like are installed, which generate a small amount of heat. The electronic controller 30 is a device that controls the servo motor 36 in the lower fuel compressor 34 and the like. The system linkage protection device 31 is a device that connects and disconnects with an external commercial power source. The exciter 33 is the spark plug 3 of the combustor 6.
5 is a device for driving.

In the second chamber 12, there are installed equipment having a large amount of heat generation, such as a power converter 39 for frequency converting the output of the generator 3 shown in FIG. 1, the fuel compressor 34, the battery 40 and the like. There is. The power converter 39 is a large heavy object having an AC / AC converter for converting high-frequency (the same frequency as the engine speed) electric power output from the generator 3 into commercial low-frequency electric power. Battery 40
Is used for starting the power unit 10, for power failure countermeasures, for rapid charging due to a sudden increase in electric load during sudden braking, and the like.

As shown in FIG. 3, the enclosure 2
Has a main body 41, and a front cover 42 provided on a drawer base 43 accommodated in the main body 41 so as to be able to be drawn forward. The partition wall 9 is provided on the front cover 42, and the partition wall 9 and the front cover 42 form the first chamber 11. A portion of the partition wall 9 around the air intake port 63 for the compressor located in the first chamber 11 is constituted by the bellows member 9a. This makes it possible to cope with a change in the length of the power unit 10 and a dimensional error of the enclosure 2. Bellows member 9a
Uses non-breathable refractory fibers. The bellows member 9a is bolted to the mounting plate 101 of FIG. 3, which is fastened together with a bolt B1 that connects the compressor shroud 64 and the main housing 69 of the gas turbine engine 1 shown in FIG.

Main body 41 of enclosure 2 and front cover 4
2, a gasket 44 is interposed between the front end peripheral edge of the main body 41 and the rear end peripheral edge of the front cover 42, and as shown in FIG. 1, for example, a stud 45 protruding from the front end of the main body 41 is provided on the front cover 42. The stud 45 is inserted in the stud insertion hole 46 at the rear end and is hooked on the stud 45 to be connected in an airtight state. On the rear floor side of the enclosure body 41,
The battery chamber 47 accommodating the battery 40 is the second chamber 12
It is provided separately from other parts inside.

The drawer base 43 is supported at its rear end by casters 48 at its rear end on a guide rail 50 on the floor of the enclosure body 41, and at the front of the floor of the enclosure body 41. The front end of the drawer base 43 is supported by the casters 49, which allows the drawer base 43 to move back and forth. In addition, in FIG. 1 and FIG. 2, in order to facilitate the description of the structure, the drawer base 4
3 shows a state in which the caster 48 is pulled out to a position where the caster 48 protrudes from the enclosure body 41, but in reality, the position where the caster 48 interferes with the rear portion of the caster 49 in the enclosure body 41 is the limit of the pulling-out position. It An electric actuator 51 for switching and driving the butterfly valve 95 in the exhaust unit 8 shown in FIG. 3 is provided at the rear of the drawer table 43, and the output of the electric actuator 51 is transmitted via the transmission mechanism 52 as shown in FIG. It is transmitted to the butterfly valve 95 (FIG. 3). in this way,
Since the electric actuator 51 is provided at a position away from the power unit 10, the electric actuator 51
Can be avoided from the thermal influence of the power unit 10.

The power unit 10 is supported on the drawer base 43 via an installation frame 53, and
The power converter 39 and the fuel compressor 34 are directly supported on the drawer base 43. The installation frame 53 attached to the drawer base 43 has a rectangular horizontal lower frame 54 in a plan view and a rectangular horizontal frame in a plan view arranged at a position eccentric to one side (left side) of the lower frame 54. And an upper frame 55, and a pillar 56 that connects a part of the lower frame 54 and the upper frame 55. At the rear end of the upper frame 55 of the installation frame 53, the intermediate mount 5 made of a rigid material such as a steel plate.
7 is provided so as to project upward, and this intermediate mount 57
Are fastened together by bolts B2 that connect the main housing 69 of the gas turbine engine 1 and the heat exchanger housing 70, and are attached to the gas turbine engine 1.

A front mount 58 made of a flexible plate is provided on the front portion of the upper frame 55 so as to project upward, and the front mount 58 is attached to the compressor shroud 64.
Bolt B that connects (FIG. 4) and the main housing 69.
It is fastened together by 1 and attached to the gas turbine engine 1. At the rear end of the lower frame 54 of the installation frame 53, a vertically long rear mount 59 made of a flexible plate is fixed, and a rear flange 102 of the heat exchanger 7 is attached to this rear mount 59 by bolts (not shown). There is.

In this way, the intermediate portion of the power unit 10 is supported by the intermediate mount 57 made of a rigid material, and the front portion and the rear portion are supported by the front mount 58 and the rear mount 59 made of flexible plates, thereby forming a fixed portion. Power unit 1 based on the intermediate mount 57
A certain degree of thermal deformation in the front-back direction of 0 can be allowed.

The drawer base 43 is the enclosure body 41.
In the state of being housed inside, as shown in FIG. 3, it is fixedly connected to the ceiling wall 47a of the battery chamber 47 via an L-shaped bracket 60. As a result, it is possible to prevent the enclosure 2 from moving up and down in the event of an earthquake. To secure the drawer base 43 with the bracket 60, the bracket 60 is inserted into the enclosure body 41 through the window 103 provided on the back surface of the enclosure body 41, and the bracket 60 is attached to the rear mount 59 of the drawer base 43 and the battery chamber 47. It is performed by bolting to the ceiling portion 47a. The window 103 is normally closed with a window plate 103A.

On the front surface of the installation frame 53, there is attached a blower 27 for supplying cooling air to a plurality of cooling target parts including the power unit 10. That is, the blower 27 is arranged in the lower chamber 16 in the first chamber 11, which is the front portion in the enclosure 2. Regarding the installation of the blower 27, the main body of the blower 27 is installed in the second chamber 12
Alternatively, only the suction hole of the blower 27 may be arranged on the first chamber 11 side.

On the lower surface of the installation frame 53, there is attached an air reservoir 26 for introducing cooling air from the blower 27 and branching it into a plurality of objects to be cooled. That is,
The air reservoir 26 communicates with the inside of the power converter 39, the inside of the battery chamber 47, the intake port 90 of the generator 3, and the servomotor 36 of the fuel compressor 34 of FIG. 2. A heat sink 104 is provided in the power converter 39 of FIG. 3, and the heat sink 104 is cooled by cooling air introduced from the air reservoir 26 through the inlet opening 39a at the lower portion of the power converter 39, thereby cooling the heat sink 104. The air after is the power converter 39
Is discharged into the second chamber 12 through the upper and rear outlet openings 39b and 39c, and is used for blowing air in the second chamber 12.

Between the air reservoir 26 and the battery chamber 47,
The flexible hose 115 wound in a spiral shape is in communication with the flexible hose 115, so that the flexible hose 115 can follow the drawer of the drawer base 43. An exhaust port 116 with a louver is provided on the back wall of the enclosure body 41 that also serves as the rear wall of the battery chamber 47, and ventilation air is introduced from the air reservoir 26 into the battery chamber 47 through the flexible hose 115. Is discharged from the exhaust port 116 to the outside of the machine.

Further, the air reservoir 26 and the intake port 9 of the generator 3
Between 0 and the flexible hose 11 passing through the throttle passage 38.
Connected by 7. A secondary filter 118 is inserted in the middle of the flexible hose 117. This secondary filter 118 prevents the magnetic substance from entering the generator 3.
It has the function of removing magnetic powder. Air reservoir 26 and FIG.
The fuel compressor 34 and the servo motor 36 are communicated with each other through a passage (not shown), and the air sent from the air reservoir 26 cools the servo motor 36, and the air after cooling is ventilated in the second chamber 12. Used for.

Also, the upper chamber 15 of the first chamber 11 shown in FIG.
Exhaust port 91 of the generator 3 housed in the
And a pipe 119 that is provided in the second chamber 12 and connects the second chamber 12 and the upper chamber 15 with each other is connected with a flexible hose 120,
As a result, the air that has exited the exhaust port 91 of the generator 3 becomes
2 will be supplied for arousal.

The power unit 10 composed of the gas turbine engine 1 and the generator 3 is, as shown in FIG.
The center of rotation C1 is arranged eccentrically in the upper side of the enclosure 2 to one side (left side when viewed from the front). Further, the power converter 39 is arranged eccentrically to the other side (right side when viewed from the front) below the power unit 10. The exhaust unit 8 is projected to the other side (right side) of the gas turbine engine 1. Below the power unit 10, one side (left side) of the power converter 39 is provided with a fuel compressor 34 that boosts the pressure of fuel (gas fuel in this case) and supplies the pressure to the power unit 10.

In the fuel compressor 34, as shown in FIG.
The fuel F is supplied from the fuel supply port 121 provided on the back wall of the enclosure body 41 through the flexible hose 122. The low pressure cutoff valve 12 is provided in the middle of the flexible hose 122.
3 is inserted. The flexible hose 122 is spirally arranged on the floor surface of the enclosure body 41, so that it can follow the withdrawal and withdrawal of the drawer base 43. The fuel compressor 34 is provided with a relief valve, and the discharge pressure is controlled by the relief valve. The rotation speed of the fuel compressor 34 is controlled by the servo motor 36, which reduces the relief amount and saves energy.

The fuel F compressed by the fuel compressor 34 is 1
It is supplied to the fuel nozzle 68 of the combustor 6 through the secondary manifold 124 and the secondary manifold 125. That is, the fuel F compressed by the fuel compressor 34 is in the primary manifold 124, the premixed fuel line 99A in which the flow rate control valves 97 and 98 are respectively inserted, and the diffusion fuel line 99.
B is branched to be supplied to each of the lines 99A and 99.
The fuel of B is branched and supplied to the three fuel nozzles 68 by the secondary manifold 125. The low pressure shutoff valve 123 and the primary manifold 124 are supported on the left side of the lower frame 54, and the secondary manifold 125 is supported on the left side of the upper frame 55.

With the drawer base 43 accommodated in the enclosure body 41, the upper end portion of the exhaust unit 8 which is the outlet of the silencer 92 is, as shown in FIG.
Exhaust pipe 10 provided on the ceiling of the enclosure body 41
5 is inserted. The exhaust pipe 105 is detachably attached to the ceiling wall of the enclosure body 41 with bolts. When the drawer base 43 is pulled out from the enclosure body 41, the bolts of the exhaust pipe 105 are removed to remove the exhaust pipe 105. The exhaust pipe 105 can be disengaged from the silencer 92 by pulling it upward from the ceiling of the enclosure body 41.

The exhaust pipe 10 at the upper end of the silencer 92.
Exhaust pipe 10 is located on the outer periphery slightly below the portion covered by 5.
5 is provided with an annular gutter 106 for collecting rainwater flowing in from the drainage pipe 5, and a drain pipe 106a communicating with the gutter 106 is provided in the opening 10 provided on the back wall of the enclosure body 41.
It is projected to the outside of the machine via 7. This drain pipe 106
By connecting a drain hose (not shown) to a,
Rainwater flowing into the gutter 106 can be collected in a tank or the like outside the machine. The upper end of the silencer 92 is formed in a dome shape so that rainwater entering from the exhaust pipe 105 can flow into the gutter 106.

A portion of the hot air in the second chamber 12 passes through the gap between the outer periphery of the upper end of the silencer 92, the lower end of the exhaust stack 105, and the gutter 106, and is discharged from the exhaust stack 105 together with the exhaust gas. It is discharged outside. In order to discharge the hot air in the second chamber 12, the enclosure body 41
An opening 108 with a louver is provided at the upper end of the back surface of the. In particular, when the natural gas whose specific gravity is smaller than that of air is used as the fuel F, the natural gas can be effectively discharged from the opening 108. On the back wall of the enclosure body 41, openings 111 and 112 through which the water supply pipe 109 to the boiler heat exchanger 96 and the hot water pipe 110 from the boiler heat exchanger 96 are inserted, and a drain pipe 113 provided at the lower end of the exhaust passage 93. There are provided openings 114 for inserting the respective holes.

The electrical connection between the power converter 39 and the generator 3, the power converter 39 and the fuel compressor 34 shown in FIG.
Electrical connection with the power converter 39 and the flow control valve 97,
The electrical connection with 98 is arranged in the front first chamber 11 in the enclosure 2. The electrical connection between the power converter 39 and the battery 40 shown in FIG. 3 is arranged inside the power converter 39 or inside the battery chamber 47.

Next, the intake / exhaust path in the gas turbine device will be described. In FIG. 3, the lower chamber 16 of the first chamber 11 that is the space at the front of the enclosure 2
The outside air from the air introduction port 17 of the
1 is introduced into the purified air chamber 22 through the dust filter 20. Rainwater or the like collected on the floor of the gas-liquid separation chamber 21 is discharged outside the machine by the drain 23. A part of the air that has been purified by passing through the dust filter 2 is sucked by the blower 27 of the purified air chamber 22, and the drawer table 43.
Sent to the air reservoir 26 below. In addition, the purified air chamber 22
A part of the air introduced into the upper chamber 15 is introduced into the upper chamber 15 through the throttle passage 18. The air introduced into the upper chamber 15 has a relatively small amount of heat generation such as the display panel 29 of FIG. 2, the electronic controller 30, the system linkage protection device 31, the breaker 32, and the exciter 33 which are arranged in the upper chamber 15. It is also used for cooling the equipment, and is further introduced as intake air IA from the air intake 63 of the compressor 4 of FIG.
Used for.

The air sent to the air reservoir 26 of FIG. 3 is further supplied to the cooling target portion including the gas turbine engine 1. That is, a part of the air in the air reservoir 26 passes through the flexible hose 117 and the secondary filter 118 and then passes through the generator 3.
Is supplied to the intake port 90, and the generator 3 is cooled by air. The air used for air cooling and discharged from the exhaust port 91 of the generator 3 is further supplied to the second chamber 12 for ventilation via the flexible hose 120. The other part of the air in the air reservoir 26 is inside the power converter 39 and has its inlet opening 39a.
The heat sink 104 and the like in the power converter 39 are air-cooled. The air used for air cooling of the heat sink 104 and the like is used as the outlet opening 39 of the power converter 39.
It is discharged from b and 39c into the second chamber 12 and used for ventilation of the second chamber 12.

Further, another part of the air in the air reservoir 26 passes through the lower flexible hose 115, and the battery chamber 47.
To the outside of the machine through the exhaust port 116 on the back surface of the enclosure body 41. Further, another part of the air in the air reservoir 26 is used for the fuel compressor 3 of FIG.
The air supplied to the servo motor 36 of No. 4 and air-cooled in the servo motor 36 is used for ventilation of the second chamber 12 of FIG.

The exhaust gas E of the gas turbine engine 1 shown in FIG. 4 is used for heat exchange with the compressed air A from the compressor 4 in the heat exchanger 7, and then discharged to the exhaust unit 8 in FIG. Boiler heat exchanger 9 built into the exhaust unit 8
6 is used, the butterfly valve 95 is set to the switching position shown by the solid line in FIG. 6, and the exhaust gas E exiting the heat exchanger 7 is
After being supplied to the lower side of the silencer 92 of FIG. 7 through the exhaust passage 93 and being silenced through the inner passage of the double pipe of the silencer 92, the silencer 92 is exhausted from the upper end of the exhaust pipe 10.
It is discharged to the outside of the machine after passing 5. At this time, in the boiler heat exchanger 96 in the middle of the exhaust passage 93, heat exchange is performed between the exhaust gas E and the feed water, and hot water is taken out from the boiler heat exchanger 96. Further, when the boiler heat exchanger 96 is not used, the butterfly valve 95 is set to the switching position shown by the chain line in FIG. 6, and the exhaust gas E that has exited the heat exchanger 7 is bypass passage 94.
After entering the outer passage of the double pipe of the silencer 92 of FIG. 7, it is supplied to the lower side of the silencer 92 from there, and after being silenced through the inner passage of the double pipe of the silencer 92,
The silencer 92 is discharged from the upper end through the exhaust pipe 105 to the outside of the machine.

In this gas turbine apparatus, the inside of the enclosure 2 shown in FIG. 3 is divided by the partition wall 9 into the first chamber 11 accommodating the air intake 63 of the compressor 4 and the generator 3, and at least the combustor 6, the turbine 5, and the turbine 5. Since it is partitioned into the second chamber 12 accommodating the heat exchanger 7 and the exhaust unit 8, the first chamber 1 partitioned from the second chamber 12 containing hot air
Since the low temperature air of No. 1 is taken into the compressor 4, the thermal efficiency and output of the gas turbine engine 1 can be improved.

The enclosure 2 has a main body 41.
And a front cover 42 provided on a drawer base 43 accommodated in the front of the main body 41 so as to be able to be drawn out, and the partition wall 9 is provided on the front cover 42. Since one chamber 11 is formed, the spark plug 35 and the fuel nozzle 68 are inspected, and the flow control valve 9
For work such as replacement of 7, 98, the drawer base 43 is pulled forward to move the enclosure main body 41 and the front cover 42 together.
Even if the enclosure is separated, the drawer base 43 is put back in the enclosure body 41 after the work is completed, so that the enclosure 2
The interior can be easily restored to a state in which the interior is divided into the first chamber 11 and the second chamber 12.

Further, in the first chamber 11, a blower 27 for supplying cooling air to cooling target parts including the gas turbine engine 1 and the generator 3, a display panel 29 for displaying an operating state, and an electronic control device 30. Since a device having a small calorific value including is installed, the temperature rise of the air in the first chamber 11 is suppressed. Therefore, the thermal efficiency and output of the gas turbine engine 1 that sucks the air in the first chamber 11 is improved.

Further, since the second chamber 12 is provided with a device having a large amount of heat generation, including a power converter 39 for frequency-converting the output of the generator 3 and a fuel compressor 34, the amount of heat generation is small. A device having a large heat generation amount can be separated from the first chamber 11 in which the device is installed, and the inside of the first chamber 11 can be kept at a low temperature.

In this gas turbine apparatus, as shown in the front view of FIG. 5, the power unit 10 including the gas turbine engine 1 and the generator 3 is arranged so that its rotation center C1 is directed in the front-back direction of the enclosure 2. 2 is arranged eccentrically to one side (left side when viewed from the front) inside 2 and the power converter 39 is eccentric to the other side (right side when viewed from the front) below the power unit 10. It is arranged. Therefore, when removing the power converter 39 for maintenance and inspection, for example, the anchor 127 is screwed into the anchor screw hole 126 (FIG. 1) provided on the top surface of the power converter 39, and the anchor 127 is screwed.
The power converter 39 is pulled out by a hoist using
By lifting it slightly and then pulling it out to the side,
The power converter 39 can be easily removed without being hindered by the power unit 10, and the mounting can be easily performed by the reverse procedure. When the power unit 10 is located directly above the power converter 39, it is necessary to pull out the power converter 39 to the side using a special lifter other than the hoist, which makes the work troublesome.

Further, the power unit 10 having a high surface temperature
However, since the electric power converter 39 is separated from the electric power converter 39 that dislikes high temperature to the side, the electric power converter 39 is separated.
The power unit 10 can be installed low and the center of gravity of the device can be lowered without increasing the heat influence on the device.

Further, since the power unit 10 is eccentrically arranged on the left side, the exhaust unit 8 can be accommodated in the empty space on the right side of the gas turbine engine 1 and can be projected well, so that the device is organized and compact. can do.

Further, below the heaviest power unit 10, the fuel is boosted to one side (the left side when viewed from the front) of the next heaviest power converter 39 to power unit 10.
Since the fuel compressor 34 that supplies the fuel to the engine is disposed, the weight balance in the left-right direction of the device is improved.

Further, at a position eccentric to one side (left side) of the rectangular lower frame 54 in plan view, the rectangular upper frame 55 in plan view is provided.
And a pillar 5 for connecting a part of the lower frame 54 and the upper frame 55.
6 is provided, and the upper frame 5 is provided.
5, the power unit 10 is attached to the lower frame 54, and the power converter 39 is attached to the lower frame 54. Therefore, the power unit 10 and the power converter 3 are attached to the single installation frame 53.
9 can be attached together well.

Further, the enclosure 2 shown in FIG. 3 has a main body 41 and a front cover 42 provided on a drawer base 43 accommodated in the main body 41 so as to be able to be drawn forward, and the drawer base 43 is provided with the installation frame. Since 53 is attached, the power unit 10, the power converter 39, etc. attached to the installation frame 53 can be easily pulled out from the enclosure 2 by pulling out the drawer base 43 from the inside of the enclosure main body 41, and maintenance of the device.・ Inspection can be done easily.

Further, a blower 27 for supplying cooling air to a plurality of cooling target portions including the power unit 10 is attached to the front surface of the installation frame 53, and cooling air from the blower 27 is attached to the lower surface of the installation frame 53. Since the air reservoir 26 that introduces the air into the cooling target portion is branched to a plurality of cooling target portions, the cooling air sucked by the blower 27 can be efficiently supplied to each cooling target portion. Further, since the blower is provided on the front surface of the installation frame 53, the two blowers can be naturally arranged in the purified air 22 and the purified air from which dust has been removed can be fed to the cooling target portion.

In this gas turbine device, an upper chamber 15 in which the generator 3 which is the driven machine of the gas turbine engine 1 and the air intake 63 of the compressor 4 are housed in the enclosure 2, and the upper chamber 15 And a lower chamber 16 provided with an air inlet 17 for introducing air from the outside of the enclosure 2 is provided below the upper chamber 15 and the lower chamber 1.
Since the throttle passages 18 communicate with each other, the high frequency noise, which is the intake noise of the compressor 4 of the gas turbine engine 1, can be effectively silenced. Moreover, since the passage length of the throttle passage 18 is set to be substantially equal to or longer than the wavelength of the high frequency noise from the gas turbine engine 1, the high frequency noise can be more effectively silenced. You can

In addition, a dust filter 20 facing the air inlet 17 is disposed in the lower chamber 16, and a gas-liquid separation chamber 21 having the air inlet 17 and the dust filter 20 at both ends and the dust are provided. A purified air chamber 22 into which the air that has passed through the filter 20 is introduced is formed, and the throttle passage 18 faces the purified air chamber 22, so that raindrops do not directly enter the generator 3 or the rotor shaft. Can be prevented.

Furthermore, the air in the purified air chamber 22 is drawn into the purified air chamber 22, and the gas turbine engine 1
Since the blower 27 for supplying the cooling air to the cooling target portion including is disposed, the cooling target portion including the gas turbine engine 1 can be air-cooled with the purified air, and intrusion of dust and the like can be prevented.

[0071]

As described above, according to the gas turbine device of the present invention, the power unit including the gas turbine engine, the generator and the enclosure for accommodating the power converter, and including the gas turbine engine and the generator is provided.
The center of rotation is arranged eccentrically to one side in the upper part of the enclosure in the front-back direction of the enclosure, and the power converter is arranged eccentrically to the other side below the power unit. When attaching / detaching the power converter for maintenance / inspection, etc., by slightly lifting the power converter and then pulling it out to the side, it is possible to easily perform the attachment / detachment work, for example, by a hoist without being obstructed by the power unit. . In addition, since the power unit with high surface temperature is located away from the power converter that dislikes high temperatures, it is possible to install the power unit low without increasing the heat effect on the power converter and lower the center of gravity of the device. You can

[Brief description of drawings]

FIG. 1 is a right front perspective view showing a gas turbine device according to an embodiment of the present invention.

FIG. 2 is a left front perspective view of the gas turbine device.

FIG. 3 is a right side sectional view of the gas turbine device.

FIG. 4 is a vertical cross-sectional view of a power unit in the gas turbine device.

FIG. 5 is a front view showing a state in which devices such as a power unit are attached to an installation frame in the gas turbine device.

FIG. 6 is a partially cutaway plan view of an exhaust unit in the gas turbine device.

FIG. 7 is a partially cutaway side view of an exhaust unit in the gas turbine device.

FIG. 8 is a front view showing a schematic configuration of a conventional example.

[Explanation of symbols]

1 ... Gas turbine engine, 2 ... Enclosure, 3 ...
Generator (driven machine), 4 ... Compressor, 5 ... Turbine, 6 ...
Combustor, 7 ... Heat exchanger, 8 ... Exhaust unit, 9 ... Partition wall,
10 ... Power unit, 11 ... First chamber, 12 ... Second chamber,
15 ... Upper chamber, 16 ... Lower chamber, 17 ... Air inlet port, 18
... throttle passage, 20 ... dust filter, 21 ... gas-liquid separation chamber, 22 ... purified air chamber, 27 ... blower, 29 ... display panel,
30 ... Electronic control device, 34 ... Fuel compressor, 39 ... Power converter, 41 ... Enclosure main body, 42 ... Enclosure front cover, 43 ... Drawer stand, 53 ... Installation frame, 54 ... Lower frame, 55 ... Upper frame , 56 ... stanchions, 63 ... compressor air intake, A ... compressed air, E ... exhaust gas, C1 ... rotation center.

[Procedure amendment]

[Submission date] November 8, 2001 (2001.11.
8)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (6)

[Claims] 1. A gas turbine engine including a compressor, a combustor, a turbine, and an exhaust unit, a generator connected to one end of the gas turbine engine and driven by a turbine, and a frequency converter for converting the output of the generator. And a gas turbine engine, a generator and an enclosure that houses the power converter, wherein a power unit including the gas turbine engine and the power generator has a rotation center thereof oriented in the front-rear direction of the enclosure. A gas turbine device arranged eccentrically to one side in the upper part of the enclosure, and the power converter arranged eccentrically to the other side below the power unit. 2. The gas turbine system according to claim 1, wherein the exhaust unit projects to the other side of the gas turbine engine. 3. The gas turn device according to claim 1, wherein a fuel compressor, which boosts fuel and supplies the fuel to the power unit, is arranged below the power unit and to one side of the power converter. 4. The lower frame according to claim 1 or 2, wherein the lower frame has a rectangular lower frame, the lower frame has a rectangular upper frame disposed at a position eccentrically to one side of the lower frame, and the lower frame has a lower frame. A gas turbine device, comprising: a mounting frame having a pillar that connects the portion and the upper frame, and the power unit is attached to the upper frame, and the power converter is attached to the lower frame. 5. The enclosure according to any one of claims 1 to 4, wherein the enclosure has a main body and a front cover provided on a drawer base accommodated in the main body so as to be able to be drawn forward, and the installation base is mounted on the drawer base. Gas turbine equipment with a frame attached. 6. The blower according to claim 1, wherein a blower for supplying cooling air to a plurality of objects to be cooled including the power unit is attached to a front surface of the installation frame, and the blower is attached to a bottom surface of the installation frame. A gas turbine device equipped with an air reservoir that introduces cooling air from the branch into a plurality of cooling target parts.