JP2003120324A - Gas turbine device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas turbine device capable of providing a muffler function for high temperature exhaust gas discharged outside of an enclosure and a rain water intrusion preventing function at an exhaust gas discharging part of the enclosure with a simple structure. SOLUTION: This gas turbine device is provided with a compressor 4, a combustor 6, a turbine 5, a gas turbine engine 1 including an exhaust unit 8, a driven machine 3 driven by the gas turbine engine, and an enclosure 2 storing the gas turbine engine 1 and the driven machine 3. The exhaust unit 8 includes a silencer 110, a gutter 115 and a drain passage 11 5a. The silencer 110 discharges exhaust gas E from an outlet 130 facing vertically upward to upward of the enclosure 2 through a through hole 134 of the enclosure 2. The gutter 115 is projectingly provided on an outer circumference of the silencer 110 and receives rainwater intruding from the through hole 134. The drain passage 115a discharge rainwater from the gutter 115 to outside of the enclosure 2.

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 including a gas turbine engine and a driven machine,
Regarding the improved exhaust unit.

[0002]

2. Description of the Related Art As a conventional example of a gas turbine device, a gas turbine engine including a compressor, a combustor, a turbine, an exhaust unit, and a generator connected to the gas turbine engine are housed in one enclosure. It has been known. In such a gas turbine device, exhaust gas emitted from the gas turbine engine is exhausted to the outside of the enclosure through the exhaust passage of the exhaust unit.

[0003]

However, in the gas turbine apparatus having such a structure, it is necessary for the exhaust unit to have a function of silencing the high temperature exhaust gas exhausted to the outside of the enclosure through the exhaust passage. With
In order to be able to pull out the gas turbine engine from the enclosure for maintenance and inspection, it is also necessary to have a structure that rainwater does not enter the inside of the enclosure through the through holes for exhaust of the enclosure. Not easy to realize.

The present invention has been made in view of the above circumstances, and has a simple function of silencing the high temperature exhaust gas exhausted to the outside of the enclosure and a function of preventing rainwater from entering through the exhaust through hole of the enclosure. It is an object of the present invention to provide a gas turbine device that can be provided with a different structure.

[0005]

In order to achieve the above object, a gas turbine apparatus according to the present invention is a gas turbine engine equipped with a compressor, a combustor, a turbine and an exhaust unit, and driven by the gas turbine engine. And a gas turbine engine and an enclosure accommodating the driven machine, wherein the exhaust unit discharges exhaust gas upward through the through hole of the enclosure from an outlet directed vertically upward. A silencer, a trough projecting from the outer periphery of the silencer to receive rainwater that has entered through the through hole, and a drain passage for discharging rainwater from the trough to the outside of the enclosure.

According to the gas turbine apparatus, the high temperature exhaust gas from the gas turbine engine can be sufficiently silenced and exhausted to the upper side of the enclosure by a simple structure, and the rainwater that has entered from the exhaust through hole of the enclosure can be removed. The gutter and drain passage prevent the rainwater from entering the enclosure by discharging it outside the enclosure. Further, since the exhaust gas is discharged above the enclosure, exhaust noise on the side of the enclosure is suppressed.

In a preferred embodiment of the present invention, the outlet of the silencer is covered with an upwardly protruding and curved outlet cover having a plurality of exhaust holes.

According to this structure, rainwater that has entered through the through hole in the ceiling wall of the enclosure can be made to flow to the outer peripheral side along the curved outer surface of the outlet cover, and can be smoothly made to flow down into the gutter.

In a preferred embodiment of the present invention, the silencer has an exhaust passage for introducing exhaust gas from below, and a drain passage for discharging drain inside the exhaust passage to the outside of the enclosure is provided at a lower portion of the exhaust passage. It is connected.

With this structure, drain such as rainwater in the exhaust passage can be discharged to the outside of the enclosure.

In a preferred embodiment of the present invention, the exhaust pipe has an exhaust pipe for discharging exhaust gas from the outlet of the silencer to the upper side of the enclosure, and the exhaust pipe is detachably attached to the ceiling wall of the enclosure upward. It is fitted into the outer periphery of the outlet end of the silencer via a gap.

In such a structure, when the gas turbine engine is pulled out from the enclosure for maintenance and inspection, the exhaust pipe is removed and pulled upward, so that the silencer does not interfere with the exhaust pipe.
The gas turbine engine can be smoothly pulled out from within the enclosure.

In a preferred embodiment of the present invention, the lower end edge of the exhaust pipe is in the trough formed by the bottom wall and the outer peripheral wall of the gutter and the outer peripheral wall of the outlet end of the silencer. It is located with a gap between.

In the case of such a configuration, a purge passage for exhausting the hot air in the enclosure to the outside of the enclosure is formed to ventilate the inside of the enclosure. In addition, a labyrinth seal is formed in the purge passage, and rainwater can be prevented from entering the enclosure through the purge passage.

[0015]

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2
FIG. 1 shows a right side cross-sectional view and a left front perspective view of a gas turbine device that is an embodiment of the present invention. In FIG. 1, the gas turbine device includes a gas turbine engine 1 and an enclosure 2 accommodating the gas turbine engine 1, a generator 3, a power converter 13, and the like.

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 the rear heat exchanger 7 for the engine and the exhaust unit 8
(FIG. 1). The gas turbine engine 1
In front of the compressor 4 at the front of the gas turbine engine 1
A generator 3, which is a kind of driven machine driven by, is connected. Gas turbine engine 1 and generator 3
The power unit 10 is configured by.

A turbine rotor 22 is joined to the back surface of the impeller 21 of the compressor 4. The compressor 4 is the generator 3
The air IA taken in from the rear air intake 23 is compressed, and the compressed air A is supplied to the combustor 6 via the heat exchanger 7 connected to the exhaust gas outlet side of the rear part of the gas turbine engine 1. Yes, driven by turbine 5. The compressor 4 includes an impeller 21 and a compressor shroud 24 formed at a position covering the impeller 21. On the outside in the radial direction on the outlet side of the compressor 4,
A diffuser 25 for increasing the static pressure of the compressed air A is arranged. The turbine 5 includes a turbine rotor 22 and
A turbine nozzle 26, which is a member on the inlet side of the turbine rotor 22, is provided.

The combustor 6 has a fuel nozzle 28 for injecting a gas or liquid fuel F into a combustion chamber 27 in the combustor 6, and the fuel F is sent into the combustion chamber 27 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 26 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 the fuel nozzles 28 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 engine heat exchanger 7 shown in FIG. 3 includes high temperature exhaust gas E discharged from the turbine 5 of the gas turbine engine 1,
The heat exchange is performed with the low temperature compressed air A discharged from the compressor 4 of the gas turbine engine 1.
A heat exchanger housing 30 is provided at a rear end portion of a main housing 29 having a circular cross section, which houses the combustor 6 and the turbine 5.
Are connected by bolts B2, and a heat exchange core 30 having a circular cross section is provided inside the heat exchanger housing 30.
C is stored. The core 30C is configured by arranging a plurality of flat heat transfer plates 38, which partition the first passage 36 through which the compressed air A flows and the second passage 37 through which the high temperature exhaust gas E flows, in parallel at predetermined intervals. . An inlet 39 through which the compressed air A flows into the first passage 36 is provided on the side surface of the rear portion of the core 30C. Also, the core 30C
An outlet 40 for the compressed air A passing through the first passage 36 is provided on the side surface of the front part of the.

Between the core 30C and the heat exchanger housing 30, compressed air A is supplied from the front of the core 30C to the core 30C.
An introduction path 41 is formed which is introduced into the inflow port 39 through the side of the above, that is, the outside of the side surface. A compressed air passage 42 is formed between the main housing 29 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 41. The compressed air passage 42 is formed by a space formed between the main housing 29 and a cylindrical member 43 arranged concentrically.
The rear end of the shroud 24, which constitutes the outer peripheral wall of the compressor 4, is fastened and fixed to the front end of the main housing 29 with bolts 46.

Further, on the front surface of the heat exchanger 7, on the inner peripheral side of the compressed air passage 42, the compressed air A from the outlet 40 of the heat exchanger 7 is introduced to the combustor 6 of the gas turbine engine 1. A lead-out path 44 for vessels is formed. The lead-out path 44 extends forward from the front end of the cylindrical member 43 and the core 30C, and is arranged inside the cylindrical member 43.
And a trumpet-shaped member 45 arranged concentrically with each other. The front end of the trumpet-shaped member 45 extends to the rear end of the shroud 26 a of the turbine nozzle 26. The space surrounded by the trumpet-shaped member 45 forms an exhaust gas inflow passage 51 that allows the exhaust gas E that has exited the turbine 5 to flow into the second passage 37 of the core 30C. An exhaust port 52 for discharging the exhaust gas E passing through the second passage 37 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 53, which is a rotating shaft connected to the rotating portion (the impeller 21 and the turbine rotor 22) of the gas turbine engine 1, and a fixed armature 54 arranged around the generator rotor 53. However, the fixed armature 54 is
It is supported on the inner circumference of a generator case 55 that is concentric with the generator rotor 53 and has a circular cross section. Generator case 5
5 has a case main body 55A having a circular cross section, and a front cover 55B covering a front opening of the case main body 55A. Fixed armature 54
Is attached to the inner side of the case body 55A.
And a coil 58 wound around a plurality of tooth portions (teeth) protruding from the core 57 toward the inner diameter side.

On the outer diameter side of the core 57 of the fixed armature 54, a plurality of cooling passages 59 penetrating in the front-rear direction are formed. A rear wall 60 of the generator case 55 serves as a partition wall 60 that partitions the air intake 23 of the compressor 4 from the generator 3. The inner peripheral end portion of the partition wall 60 and the inner peripheral end portion of the front cover 55B. In addition, the generator rotor 53 has a pair of bearings 56A and 56B.
It is rotatably supported via. At the center of the front end of the front cover 55B of the generator 3, the generator case 5 is externally attached.
An inlet port 68 for introducing cooling air is provided in the unit 5. An exhaust port 71 for discharging the air introduced into the cooling passage 59 to the outside of the case 55 is provided on the outer periphery of the rear end of the generator case 55.

As shown in FIG. 1, the exhaust unit 8 is connected to the rear of the engine heat exchanger 7 via an exhaust pipe 64, and the heat exchanger 7 in the gas turbine engine 1 is connected.
The heat exchanger 102 for the boiler that generates hot water by heat exchange with the exhaust gas E that has exited the exhaust port 52 of the exhaust gas, and the silencer 110 for exhaust gas that has a vertical posture and has an outlet 130 that faces vertically upward are provided. I have it. Further, in the exhaust unit 8, as shown in the rear view of FIG. 5, the first exhaust passage 112 that guides the exhaust gas E to the inlet 129 at the lower portion of the silencer 110 via the boiler heat exchanger 102.
And the exhaust gas E bypassing the boiler heat exchanger 102 from the vicinity of the upper end of the silencer 110 to the lower inlet 1
A second exhaust passage 114 leading to 29 is provided.

From the exhaust pipe 64 connected to the exhaust port 52 of the heat exchanger 7, the first and second exhaust passages 112 and 11 are connected.
In the part where 4 branches, as shown in the right side view of FIG.
A switching valve 113 is provided. Due to the switching operation of the switching valve 13, the exhaust gas E discharged from the exhaust pipe 64 passes through the boiler heat exchanger 102 and the silencer 110 of FIG. 5, and is connected to the first exhaust passage 112 and the boiler heat exchanger 102. Is selectively introduced into the second exhaust passage 114 that bypasses the exhaust gas and is connected to the outside via the silencer 110. The first exhaust passage 112 extends downward from the switching valve 113, the second exhaust passage 114 extends upward from the switching valve 113, and the boiler heat exchanger 102 is arranged below the switching valve 113. A drain hole 136 is provided below the boiler heat exchanger in the first exhaust passage 112,
A drain passage 127 formed of a pipe for discharging the drain out of the machine is connected to the drain hole 136.

The hot water from the boiler heat exchanger 102 passes through a hot water pipe 119 as shown in FIG.
1, the hot water is introduced and stored from the upper part thereof, and the stored hot water is supplied from the lower part of the hot water storage tank 131 to the water supply pipe 118.
Through the circulation pump 132 to the boiler heat exchanger 102.
Is supplied to. A temperature sensor 133 for detecting the water temperature is provided in the lower part of the hot water storage tank 131, and the temperature sensor 133 is provided.
The detection signal from is input to the valve control means 137, and when the detected water temperature is equal to or higher than a predetermined value (for example, 70 ° C.), the valve control means 137 controls the actuator 120 to bypass the boiler heat exchanger. The switching valve 113 is switched and driven so that the exhaust gas E is introduced into the second exhaust passage 114. The valve control means 137 is built in a controller 138 that controls the entire gas turbine system. Water is supplied from the water supply pipe 139 to the hot water storage tank 131 as the water level of the stored hot water decreases due to use.

As shown in FIG. 1, the inside of the enclosure 2 is divided by a partition wall 9 into a front first chamber 11 accommodating the air intake 23 of the compressor 4 and the generator 3, and at least the combustor 6 and the turbine. 5, the heat exchanger 7 and the exhaust unit 8 are partitioned into a rear second chamber 12.
As a result, the air intake 23 of the compressor 4 sucks the air in the first chamber 11 that is lower in temperature than the second chamber 12, and the efficiency and output of the gas turbine engine 1 are improved.

The first chamber 11 is provided with an upper chamber 19 for accommodating the air intake 23 of the compressor 4 and the generator 3, and is arranged below the upper chamber 19 to allow air from the outside of the enclosure 2. Lower chamber 20 provided with air inlet 17 for introducing
And have. The upper chamber 19 and the lower chamber 20 are partitioned by a partition plate 18, and are communicated with each other by a vertical throttle passage 72 provided at the rear end of the partition plate 18. The inner wall surface of the upper chamber 19 is covered with a sound absorbing material 69. The upper chamber 19 has a display panel, an electronic controller, a breaker,
Equipment such as an exciter (not shown) that generates a small amount of heat is installed.

The lower chamber 20 has the air inlet 17
A dust filter 73 facing each other is formed to form a gas-liquid separation chamber 74 having the air inlet 17 and the dust filter 73 at both ends, and a purified air chamber 75 into which air passing through the dust filter 73 is introduced. Has been done. At the bottom of the gas-liquid separation chamber 74, a drain 76 for draining rainwater accumulated on the floor is provided.

The gas in the purified air chamber 75 is sucked into the purified air chamber 75 and the gas turbine engine 1
A blower 81 that supplies cooling air to the cooling target portion including the generator 3 is arranged. The inner wall surface of the purified air chamber 75 other than the dust filter 73 is also covered with the sound absorbing material 70. The lower end of the throttle passage 72 faces the purified air chamber 75.

In the second chamber 12, there are installed equipments which generate a large amount of heat, such as a power converter 13 for frequency-converting the output of the generator 3, a battery 82, a fuel compressor 66 (FIG. 2) and the like. The power converter 13 has an AC / AC converter for converting high-frequency power (the same frequency as the engine speed) output from the generator 3 into commercial low-frequency power. The battery 82 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.

The enclosure 2 has a main body 83 and a front cover 84 provided on a drawer base 85 accommodated in the main body 83 so as to be able to be drawn forward (to the left in FIG. 1). The partition wall 9 is provided on the front cover 84, and the partition wall 9 and the front cover 84 form the first chamber 11. On the rear floor surface side in the enclosure body 83, a battery chamber 86 accommodating the battery 82 is provided so as to be partitioned from other parts in the second chamber 12.

The drawer base 85 is supported at its rear end by a caster 87 provided at its rear end on a guide rail 88 on the floor of the enclosure body 83, and at the front of the floor of the enclosure body 83. The front end portion of the drawer base 85 is supported by the casters 89, whereby the drawer base 85 is movable back and forth. Note that, in FIG. 2, in order to facilitate the description of the structure, the drawer base 85 is shown in a state in which the caster 87 is pulled out to a position where the caster 87 protrudes from the enclosure body 83, but in reality, the caster 87 is the enclosure body 83. Inner caster 89
The position that interferes with the rear part is the limit of the pull-out position.

As shown in FIG. 2, an electric actuator 120 for switching and driving the switching valve 113 (FIG. 4) in the exhaust unit 8 is provided at the rear of the drawer table 85, and the output of this actuator 120 is transmitted to the power. Mechanism 1
It is transmitted to the switching valve 113 via 21. in this way,
Actuator 1 at a position away from power unit 10
Since 20 is provided, the actuator 120 can be avoided from the thermal influence of the power unit 10. The power unit 10 is supported on the drawer base 85 via the installation frame 90, and the power converter 13 and the fuel compressor 66 are directly supported on the drawer base 85.

On the front surface of the installation frame 90, the blower 81 for supplying cooling air to a plurality of objects to be cooled including the power unit 10 is attached. That is,
The blower 81 is arranged in the lower chamber 20 in the first chamber 11, which is the front part in the enclosure 2 in FIG. 1. On the lower surface of the installation frame 90, an air reservoir 9 for introducing cooling air from the blower 81 and branching it into a plurality of cooling target portions.
6 is attached. That is, this air reservoir 96
Are in the power converter 13, the battery chamber 86, the inlet 68 of the generator 3, and the servomotor 67 of the fuel compressor 66.
And communicate with. Cooling air is introduced from the air reservoir 96 through the lower inlet opening 13a of the power converter 13,
The air after cooling the inside of the power converter 13 is discharged into the second chamber 12 through the outlet openings 13b and 13c at the upper and rear portions of the power converter 13 and used for ventilation of the second chamber 12.

Between the air reservoir 96 and the battery chamber 86,
The flexible hose 97 wound in a spiral shape is connected to the flexible hose 97, so that the flexible hose 97 can follow the drawer of the drawer base 85. Battery compartment 86
On the back wall of the enclosure main body 83 that doubles as the rear wall,
An exhaust port 98 with a louver is provided, and the air reservoir 96 is provided.
The ventilation air introduced into the battery chamber 86 through the flexible hose 97 is discharged from the exhaust port 98 to the outside of the enclosure 2 (outside the machine).

In addition, the air reservoir 96 and the inlet 6 of the generator 3
8 and the flexible hose 99 passing through the throttle passage 72.
Connected by. A secondary filter 100 is inserted in the middle of the flexible hose 99. The secondary filter 100 has a function of removing the magnetic powder so that the magnetic powder does not enter the generator 3. The servo motor 67 of the fuel compressor 66 is also cooled by the air from the air reservoir 96, and the air after air cooling is used for ventilation of the second chamber 12.

The upper chamber 19 of the first chamber 11 shown in FIG.
The exhaust port 71 of the generator 3 housed in the
And a pipe 103 for communicating the second chamber 12 and the upper chamber 19 which are provided in the
As a result, the air that has exited the exhaust port 71 of the generator 3 becomes
2 is supplied for ventilation.

In the fuel compressor 66, as shown in FIG.
The fuel F is supplied from the fuel supply port 61 provided on the back wall of the enclosure body 83 through the flexible hose 62. The flexible hose 62 is spirally arranged on the floor of the enclosure main body 83, whereby the drawer table 85 is provided.
It is designed to be able to follow in and out of. The fuel F compressed by the fuel compressor 66 passes through the primary manifold 91 and the secondary manifold 92, and the fuel nozzle 2 of the combustor 6
8 are supplied.

With the drawer table 85 housed in the enclosure body 83, the upper end of the exhaust unit 8 which is the outlet of the silencer 110 has a through hole in the ceiling wall 83a of the enclosure body 83, as shown in FIG. 1
The exhaust gas E from the outlet 130 of the silencer 110 is inserted into the exhaust pipe 111 attached to the exhaust pipe 11 and the exhaust pipe 11
The air is exhausted to the upper side (outside) of the enclosure 2 via 1. Therefore, exhaust noise on the side of the enclosure 2 is suppressed. Since the noise level on the side of the enclosure 2 has a large effect on the surrounding environment, it is desired to reduce it, so that suppression of exhaust noise on this side is preferable.

The exhaust pipe 111 is the enclosure body 8
It is detachably attached to the ceiling wall 83a of No. 3 with a bolt B1. When pulling out the drawer base 85 from the inside of the enclosure main body 83, the bolt B1 of the exhaust pipe 111 is removed, and the exhaust pipe 111 is pulled out upward from the ceiling wall 83a of the enclosure main body 83.
The engagement of the exhaust pipe 111 with respect to 10 can be released.

The exhaust pipe 1 at the upper end of the silencer 110
An annular gutter 115 for receiving rainwater that has entered through the through hole 134 of the ceiling wall 83a of the enclosure main body 83 is attached to the outer periphery of a position slightly lower than the portion covered with 29, and the enclosure main body is attached to the rear part of the gutter 115. 83
A pipe penetrating through an opening 116 provided in the rear wall is connected to form a drain passage 115a for discharging rainwater from the gutter 115 to the outside of the enclosure 2. By connecting a drain hose (not shown) to the drain passage 115a, rainwater flowing into the gutter 115 can be collected in a tank or the like outside the enclosure 2. Outlet 130 at the top of silencer 110
Is covered with an outlet cover 135 having a plurality of exhaust holes 135a. The outlet cover 135 corresponds to the exhaust pipe 1
It is formed in a dome shape curved upward so that rainwater entering from 11 can be poured into the gutter 115.

The silencer 110 comprises a double pipe as shown in FIG. 5, and the outer pipe 110a of the double pipe has a lower end (one end).
Communicates with the inlet end of the inner pipe 110b, and the upper end (other end) is closed. The first exhaust passage 112 is connected to the lower end of the outer pipe 110a, and the second exhaust passage 114 is connected to the outer peripheral portion near the upper end of the outer pipe 110a.
A sound absorbing material 117 is attached to the inner circumference of the inner pipe 110b, and the inner passage 106 is formed on the inner circumference side of the sound absorbing material 117. An annular passage 107, which is an outer passage, is formed between the outer pipe 110a and the inner pipe 110b.

On the back wall of the enclosure body 83 shown in FIG. 1, the hot water storage tank 131 (FIG. 4) is connected to the boiler heat exchanger 1.
An opening 125 through which a water supply pipe 118 for supplying water to 02 is inserted
From the boiler heat exchanger 102 to the hot water storage tank 131 (FIG. 4)
An opening 126 through which a hot water pipe 119 for sending hot water to
An opening 128 for inserting the pipe of the drain passage 127 connected to the first exhaust passage 112 is provided.

On the outer circumference of the outlet end of the silencer 110, there is a radial gap as shown in FIG.
1 is fitted into the gutter groove 139 formed by the bottom wall and outer peripheral wall of the gutter 115 and the outer peripheral wall of the outlet end of the silencer 110, and the lower end edge of the exhaust pipe 111 is between the bottom wall and the bottom wall. It is located with a gap in. As a result, the purge passage P for exhausting the hot air in the second chamber 12 from the exhaust pipe 111 to the outside of the enclosure 2 is formed, and the labyrinth seal LA is formed in the purge passage P.

Next, the intake / exhaust path in the gas turbine device will be described. In the first chamber 11 which is the front space of the enclosure 2 of FIG. 1, the air outside the enclosure 2 is first introduced into the gas-liquid separation chamber 74 from the air introduction port 17 of the lower chamber 20, and the dust filter 73 is further added. It passes through and is introduced into the purified air chamber 75. Rainwater or the like collected on the floor of the gas-liquid separation chamber 74 is discharged to the outside of the enclosure 2 by the drain 76. A part of the air purified by passing through the dust filter 73 is blown by the blower 81 in the purified air chamber 75.
And is sent to the air reservoir 96 under the drawer table 85. Further, another part of the air introduced into the purified air chamber 75 is introduced into the upper chamber 19 through the throttle passage 72. The air introduced into the upper chamber 19 is introduced as intake air IA from the air intake port 23 of the compressor 4 shown in FIG. 3 and used for the gas turbine engine 1.

The air sent to the air reservoir 96 of FIG. 1 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 96 is supplied to the inlet 68 of the generator 3 via the flexible hose 97 and the secondary filter 100, whereby the generator 3 is air-cooled. The air used for air cooling and exhausted from the exhaust port 71 of the generator 3 further passes through the flexible hose 104 and then flows into the second chamber 1.
2 is supplied for ventilation. The other part of the air in the air reservoir 96 is supplied to the power converter 13, the servomotor 67 of the fuel compressor 66, and the battery chamber 86 as described above. The air after cooling the power converter 13 and the servomotor 67 is used for ventilation of the second chamber 12 in FIG. 1, and the air after cooling the battery chamber 86 is the exhaust port 9.
8 is discharged to the outside of the enclosure 2.

The exhaust gas E of the gas turbine engine 1 shown in FIG. 3 is used for heat exchange with the compressed air A from the compressor 4 in the engine heat exchanger 7, and then discharged to the exhaust unit 8 of FIG. To be done. When the water temperature detected by the temperature sensor 133 in the hot water storage tank 131 of FIG. 4 falls below a predetermined value, the switching valve 113 of the exhaust unit 8 is set to the switching position shown by the solid line in FIG. 4, and the exhaust gas E exiting the heat exchanger 7 is discharged. Is the inlet 1 at the lower end of the silencer 110 of FIG. 5 via the first exhaust passage 112.
After being introduced into 29, the sound is silenced through the inner passage 106 of the double pipe, and then exhausted from the outlet 130 at the upper end of the silencer 110 to the upper part (outside) of the enclosure 2 through the exhaust pipe 111. At this time, in the boiler heat exchanger 102 in the middle of the first exhaust passage 112, heat exchange is performed between the exhaust gas E and the feed water, and hot water is taken out from the boiler heat exchanger 102 and stored in the hot water storage tank 131. Sent.

Further, when the water temperature detected by the temperature sensor 133 in the hot water storage tank 131 of FIG. 5 enters the double pipe annular passage 107 of the silencer 110 of FIG. 5 and is introduced into the inlet 129 at the lower end of the silencer 110, and from the outlet 130 at the upper end of the silencer 110 through the exhaust pipe 111 to the enclosure. 2 is exhausted to the upper side (outside). As a result, in the boiler heat exchanger 102, the hot water storage tank 1
The hot water from 31 that has reached a temperature equal to or higher than a predetermined value is the exhaust gas E.
It is possible to prevent heat exchange between and.

In this gas turbine system, the exhaust gas E is
The switching valve 113 shown in FIG. 4 selects the first exhaust passage 112 that connects to the outside via the boiler heat exchanger 102 and the second exhaust passage 114 that bypasses the boiler heat exchanger 102 and connects to the outside. When the temperature of the hot water in the hot water storage tank 131 is equal to or higher than a predetermined value, the switching valve 113 is switched and driven by the actuator 120 to introduce the exhaust gas E into the second exhaust passage 114. Therefore, the hot water storage tank 1
The high temperature hot water stored in 31 is used as the boiler heat exchanger 102.
Thus, it is possible to prevent heat exchange with the exhaust gas E and vaporization.
Further, the switching valve 113, the actuator 120, the power transmission mechanism 121, the temperature sensor 133, and the valve control means 137.
It can be realized with a simple and small space structure by simply providing. Moreover, there is no waste of water resources to prevent vaporization and no increase in costs of incidental equipment.

Alkaline dew condensation of the exhaust gas is likely to occur in the boiler heat exchanger 102 when the gas turbine apparatus is stopped. However, since the boiler heat exchanger 102 is arranged below the switching valve 113, dew condensation occurs. It is possible to avoid dripping on the switching valve 113 and corroding it.

The first exhaust passage 112 is provided with the switching valve 1
Since the second exhaust passage 114 extends downward from 13 and the second exhaust passage 114 extends upward from the switching valve 113, the size of the gas turbine device in the left-right direction is reduced and the space required for the device can be reduced.

Further, the actuator 120 for driving the switching valve 113 is provided at the rear portion of the drawer base 85 of FIG. 2 which is separated from the switching valve 113, and is connected to the switching valve 113 via the power transmission mechanism 121. Therefore, it is possible to prevent the actuator 120 from being affected by the heat of exhaust gas.

As shown in FIG. 5, the first exhaust passage 112 is provided with a first exhaust passage 112 below the boiler heat exchanger 102.
Drain hole 136 for discharging the drain in the exhaust passage 112 of
Is formed, the dew condensation of the boiler heat exchanger 102 can be discharged to the outside of the exhaust passage 112.

The first and second exhaust passages 11 are also provided.
Downstream of 2,114, double tube silencer 110
The lower end of the outer pipe 110a of the double pipe communicates with the inlet end of the inner pipe 110b and the upper end is closed, and the first exhaust passage 112 is connected to the lower end of the outer pipe 110a. The second exhaust passage 114 is connected to the outer peripheral portion near the upper end of the outer pipe 110a. Therefore, both discharge passages 11
Exhaust gas E that has passed through either 2, 2114 is silencer 1
The sound is silenced through the inner passage 106 of the inner cylinder 110b of the ten. Moreover, the exhaust gas E having a high temperature and hence a high noise level passes through the outer passage 107 in the outer pipe 110a from the second exhaust passage 114 and then enters the inner passage 106 in the inner pipe 110b. And inner passage 1
Both can be muted sufficiently within 06.

In this gas turbine device, the exhaust unit 8 shown in FIG. 1 has an outlet 13 that directs the exhaust gas E vertically upward.
A silencer 110 that exhausts air from above to the upper part of the enclosure 2 through a through hole 134 of the enclosure 2 and the through hole 13 that projects from the outer periphery of the silencer 110.
The gutter 115 that receives the rainwater that invaded from 4 and this gutter 115
Since the drain passage 115a for discharging the rainwater from the outside to the outside of the enclosure 2 is provided, the exhaust gas E of the gas turbine engine 1 can be discharged above the enclosure 2 and the exhaust gas discharge portion of the enclosure 2 into the enclosure 2 It can prevent rainwater from entering.

Further, the outlet 130 of the silencer 110.
Is covered with the outlet cover 135 which has a plurality of exhaust holes 135a shown in FIG. 5 and which protrudes upward and is curved in a dome shape. Therefore, from the through hole 134 of the ceiling wall 83a of the enclosure 2, that is, the exhaust pipe 111. Rainwater that has entered from the outside can be made to flow to the outer peripheral side along the curved outer surface of the outlet cover 135, and can be made to flow smoothly to the gutter 115.

A drain passage 127 for discharging the drain inside the exhaust passage 112 to the outside of the enclosure 2 is connected to the lower portion of the first exhaust passage 112 for introducing the exhaust gas E from below the silencer 110. Exhaust passage 11
Drain such as rainwater in 2 can be discharged to the outside of the enclosure 2.

Further, the exhaust pipe 111 for exhausting the exhaust gas E from the outlet 130 of the silencer 110 shown in FIG. 1 above the enclosure 2 is the ceiling wall 83 of the enclosure 2.
The gas turbine engine 1 is pulled out from the enclosure 2 for maintenance / inspection because it is detachably attached to the upper part of a and is fitted through a gap in the outer circumference of the outlet end (upper end) of the silencer 110. sometimes,
By removing the exhaust pipe 111 and pulling it upward, the gas turbine engine 1 can be smoothly pulled out from the enclosure 2 without the silencer 110 interfering with the exhaust pipe 111.

Gutter 1 in silencer 110 shown in FIG.
In the trough 139 formed by the bottom wall and the outer peripheral wall of 15 and the outer peripheral wall of the outlet end of the silencer 110, the exhaust pipe 1
The lower end edge of 11 is located with a gap between it and the bottom wall. Therefore, the purge passage P for exhausting the hot air in the enclosure 2 to the outside of the enclosure 2 is formed, the ventilation in the enclosure 2 is effectively performed, and the labyrinth seal LA is formed in the purge passage P. Therefore, it is possible to prevent rainwater from entering the enclosure 2 through the purge passage P.

FIG. 6 shows the outlet cover 13 of the silencer 110.
5 shows a modified example. In this modification, the outlet cover 135
A plurality of bosses 141 protruding upward are provided on each
An exhaust hole 135a is formed on the top wall of No. 1. As a result, rainwater passes through the groove between the bosses 141 and the outlet cover 13
5, it smoothly flows down to the outer peripheral side, and it is difficult for the gas to enter the silencer 110 through the exhaust hole 135a.

The present invention can be applied to a gas turbine device that drives other driven machines such as a pump and a blower in addition to the generator 3.

[0063]

As described above, according to the gas turbine apparatus of the present invention, the exhaust unit includes the silencer for discharging the exhaust gas from the outlet directed vertically upward to the upper side of the enclosure through the through hole of the enclosure. Since the gas turbine has a trough projecting from the outer periphery of the silencer and receiving rainwater entering from the through hole, and a drain passage for discharging rainwater from the trough to the outside of the enclosure, the gas turbine has a simple structure. Hot exhaust gas from the engine
It is possible to sufficiently muffle the sound and exhaust it to the upper side of the enclosure to reduce exhaust noise on the side of the enclosure, and also to prevent rainwater from entering the enclosure from the exhaust gas discharge portion of the enclosure.

[Brief description of drawings]

FIG. 1 is a right side sectional view of 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 vertical cross-sectional view of a power unit in the gas turbine device.

FIG. 4 is a partially cutaway side view showing an exhaust unit and a hot water storage tank in the gas turbine device.

FIG. 5 is a partially cutaway rear view showing the entire exhaust unit of the gas turbine device.

FIG. 6 is a vertical cross-sectional view showing a modified example of the outlet cover of the exhaust unit.

[Explanation of symbols]

1 ... Gas turbine engine, 2 ... Enclosure, 3 ...
Generator (driven machine), 4 ... Compressor, 5 ... Turbine, 6 ...
Combustor, 8 ... Exhaust unit, 10 ... Power unit, 8
3a ... Ceiling wall, 110 ... Silencer, 111 ... Exhaust pipe,
112 ... First exhaust passage, 115 ... Trough, 115a ... Drain passage, 127 ... Drain passage, 130 ... Silencer outlet, 134 ... Through hole, 135 ... Outlet cover, 135a ...
Exhaust hole, 136 ... Drain hole, 139 ... Trough, E ... Exhaust gas

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[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 1

[Correction method] Change

[Correction content]

[Figure 1]

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) F01D 25/30 F01D 25/30 D F01K 13/00 F01K 13/00 A H02K 7/18 H02K 7/18 B

Claims (5)

[Claims] 1. A gas turbine engine including a compressor, a combustor, a turbine and an exhaust unit, a driven machine driven by the gas turbine engine, and an enclosure accommodating the gas turbine engine and the driven machine. The exhaust unit comprises a silencer that discharges exhaust gas from an outlet directed vertically upward through a through hole of the enclosure to the upper side of the enclosure, and rainwater that protrudes from the outer periphery of the silencer and intrudes from the through hole. A gas turbine device comprising: a gutter that receives the rainwater; and a drain passage that discharges rainwater from the gutter to the outside of the enclosure. 2. The gas turbine apparatus according to claim 1, wherein an outlet of the silencer is covered with an outlet cover which has a plurality of exhaust holes and which is protruded and curved upward. 3. The drain passage according to claim 1, wherein the silencer has an exhaust passage for introducing exhaust gas from below, and a drain passage for discharging the drain in the exhaust passage to the outside of the enclosure at a lower portion of the exhaust passage. Gas turbine equipment to which is connected. 4. The exhaust pipe according to claim 1, further comprising an exhaust pipe for discharging exhaust gas from the outlet of the silencer to an upper side of the enclosure, the exhaust pipe being removable upward from a ceiling wall of the enclosure. And a gas turbine device mounted on the outer periphery of the outlet end of the silencer with a gap. 5. The lower end edge of the exhaust pipe according to claim 4, in a trough formed by the bottom wall and the outer peripheral wall of the gutter and the outer peripheral wall of the outlet end of the silencer. A gas turbine device located with a gap between.