JP2018168807A - Power generation facility - Google Patents

Abstract

An object of the present invention is to provide a power generation facility with less noise than conventional ones. SOLUTION: A power generation facility 1 according to the present invention includes a package 3, a silencer 51 for silencing exhaust gas from an engine 6, a first generator 5a for generating AC power, and a first power generator for driving the first generator 5a. It drives a first generator 2a having an engine 6a and a first exhaust pipe 7a connecting the first engine 6a and a silencer 51, a second generator 5b for generating AC power, and a second generator 5b. A second power generator 2b having a second engine 6b and a second exhaust pipe 7b connecting the second engine 6b and a silencer 51, one end connected to the silencer 51, and the other end A first external exhaust pipe 8a that protrudes outside the package 3 and discharges the exhaust to the outside of the package 3, one end connected to the silencer 51, and the other end protruding outside the package 3 to exhaust the exhaust. and a second external exhaust pipe 8 b for discharging to the outside of the package 3 . [Selection drawing] Fig. 1

Description

  The present invention relates to a power generation facility.

  Hospitals, data centers, and the like are equipped with emergency power generation facilities that supply power instead when commercial power is interrupted. Patent Document 1 discloses a power generation facility including one power generation device. On the other hand, as a recent trend, in facilities where the reliability of emergency power generation facilities is particularly important, power generation facilities equipped with two power generation devices are increasing. One silencer is connected to each of the two power generation devices.

  The power generation facilities are required to perform regular test operations in order to ensure normal operation when the commercial power supply fails. On the other hand, in relation to the surrounding living environment, it is required to minimize the noise generated from the power generation equipment during the trial operation.

JP-A-2005-48615

  However, since the power generation equipment provided with the conventional two power generation devices has a large number of components arranged in a limited installation space, there is a problem that there is no room for the installation space and it is difficult to add a silencer.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a power generation facility in which noise during a trial run is made smaller than before without adding a silencer.

  A power generation facility according to the present invention includes a package, a silencer that is installed inside the package and silences engine exhaust, a first generator that is installed inside the package and generates AC power, and a first generator. A first generator that has a first engine to be driven, and a first exhaust pipe that connects the first engine and the silencer; a second generator that is installed inside the package and generates AC power; and a second generator A second power generation device having a second engine that drives the machine, and a second exhaust pipe that connects the second engine and the silencer, one end connected to the silencer, and the other end of the package A first external exhaust pipe that protrudes to the outside and discharges the exhaust to the outside of the package, and one end connected to the silencer, the other end protrudes to the outside of the package, and discharges the exhaust to the outside of the package. 2 External exhaust pipe The silencer includes a first silencer that silences the exhaust, a second silencer that silences the exhaust, and the destination of the exhaust that has passed through the first silencer, either the second external exhaust pipe or the second silencer. A first switching plate that switches to one side, and a second switching plate that switches the destination of the exhaust gas that has passed through the second silencer to either the first external exhaust pipe or the first silencer.

  ADVANTAGE OF THE INVENTION According to this invention, the power generation equipment which made the noise at the time of test operation smaller than before can be provided, without adding a silencer.

It is a mimetic diagram of the power generation equipment concerning an embodiment of the invention. It is a top view of the silencer concerning an embodiment of the invention. It is sectional drawing which looked at the silencer of FIG. 2 at the AA line. (A) is a left view of a silencer. (B) is a right side view of the silencer. It is a schematic diagram of the electric power generation equipment which concerns on embodiment of this invention, and shows the exhaust flow path formed when generating with a 1st generator. It is a schematic diagram of the electric power generation equipment which concerns on embodiment of this invention, and shows the exhaust flow path formed when generating with a 2nd generator. It is a block diagram which shows the structure of the power generation equipment which concerns on embodiment of this invention. It is a flowchart which shows operation | movement of the power generation equipment which concerns on embodiment of this invention.

Hereinafter, power generation equipment according to embodiments of the present invention will be described with reference to the drawings.
For ease of understanding, the left-right direction in FIG. 1 will be described as the X-axis direction, the depth direction in FIG. 1 will be described as the Y-axis direction, and the up-down direction in FIG. The axial directions of other drawings are also defined based on the axial direction of FIG.
Moreover, in each drawing, the same code | symbol is attached | subjected to the same or equivalent part.

First, the configuration of the power generation facility 1 will be described.
As shown in FIG. 1, the power generation facility 1 includes a package 3, a first power generation device 2 a, a second power generation device 2 b, and a silencer 51 that silences exhaust of the engine 6.

  The first power generator 2a includes a first housing 4a, a first generator 5a that generates AC power, a first engine 6a that drives the first generator 5a, a first engine 6a, and a silencer 51. A first exhaust pipe 7a to be connected. The second power generator 2b includes a second casing 4b, a second generator 5b that generates AC power, a second engine 6b that drives the second generator 5b, a second engine 6b, and a silencer 51. A second exhaust pipe 7b to be connected.

The power generation facility 1 further includes a first external exhaust pipe 8 a that has one end connected to the silencer 51 and the other end protruding outside the package 3 to discharge exhaust to the outside of the package 3. And a second external exhaust pipe 8 b that has an end connected to the silencer 51 and the other end protruding outside the package 3 to discharge exhaust to the outside of the package 3.

  Inside the package 3, a first power generation device 2a, a second power generation device 2b, a silencer 51, a first external exhaust pipe 8a, and a second external exhaust pipe 8b are installed. The package 3 has a box shape. The package 3 is made of metal such as iron, stainless steel, and aluminum in order to protect various devices accommodated therein from the external environment.

  The housing 4 is made of a metal such as iron, stainless steel, or aluminum. Since the sound absorbing material is attached to the inner wall of the housing 4, it is possible to suppress leakage of internal noise to the outside.

  The generator 5 is a synchronous generator. The generator 5 is mechanically connected to the engine 6 and obtains rotational energy by driving the engine 6. The generator 5 generates AC power by converting this rotational energy into electrical energy by electromagnetic induction.

  The engine 6 is an internal combustion engine such as a gasoline engine, a diesel engine, a gas engine, or a gas turbine engine, for example. Since the engine 6 that is a power source is operated by gasoline, light oil, or the like, the generator 5 can be driven to generate power without being affected by the power failure of the commercial power supply 32.

  Since the power generation facility 1 includes the two power generation devices 2, even when one power generation device 2 cannot be operated, the other power generation device 2 can be operated and power can be supplied. Thereby, the power generation equipment 1 can meet the demand for facilities where reliability is particularly important. As a case where the power generation device 2 cannot be operated, for example, a failure of the generator 5, a failure of the engine 6, a fuel out of the engine 6, a failure of the control device 21 described later, and the like are assumed.

  The exhaust pipe 7 is made of a metal such as iron, stainless steel, or aluminum.

  The external exhaust pipe 8 is made of a metal such as iron, stainless steel, or aluminum.

The configuration of the silencer 51 will be described.
As shown in FIGS. 2 to 4, the silencer 51 is provided on the upper side in the Z-axis direction and provided on the lower side in the Z-axis direction, and a first silencer 52 a that silences exhaust exhausted from the engine 6. A second silencer 52b that silences the exhaust discharged from the engine 6, a partition wall 53 that separates the first silencer 52a and the second silencer 52b, and a destination of the exhaust that has passed through the first silencer 52a is directed to the second outside. The first switching plate 54a that switches to either the exhaust pipe 8b or the second silencer 52b, and the destination of the exhaust that has passed through the second silencer 52b is either the first external exhaust pipe 8a or the first silencer 52a. And a second switching plate 54b that switches to one side.

The silencer 51 has a first inflow port 57a and a first outflow port 58a on one side surface in the X-axis direction, and a second inflow port 57b and a second outflow port 58a on the other side surface in the X-axis direction. However, a first switching chamber 56a is formed on one side in the X-axis direction, and a second switching chamber 56b is formed on the other side in the X-axis direction.

The first switching plate 54a rotates inside the first switching chamber 56a around a first rotating shaft 55a parallel to the Y-axis direction. When the first switching plate 54a is in a position parallel to the XY plane, the exhaust gas flowing from the second inlet 57b subsequently flows into the second silencer 52b, and the exhaust gas that has passed through the first silencer 52a is It flows out from the 2 outlet 58b. When the first switching plate 54a is in a position parallel to the YZ plane, the exhaust gas that has passed through the first silencer 52a subsequently flows into the second silencer 52b.

The second switching plate 54b rotates inside the second switching chamber 56b with a second rotating shaft 55b parallel to the Y-axis direction as an axis. When the second switching plate 54b is in a position parallel to the XY plane, the exhaust gas flowing from the first inlet 57a subsequently flows into the first silencer 52a, and the exhaust gas that has passed through the second silencer 52b is It flows out from 1 outflow port 58a. When the second switching plate 54b is in a position parallel to the YZ plane, the exhaust gas that has passed through the second silencer 52b subsequently flows into the first silencer 52a.

  The switching plate 54 is a rectangular plate. The switching plate 54 is in the open position when it is in a position parallel to the XY plane, and is in the closed position when it is in a position parallel to the YZ plane.

  The interior of the muffler 52 has a complicated structure provided with a baffle plate (not shown) that disturbs the flow of exhaust. In general, when the exhaust discharged from the engine is discharged from the external exhaust pipe 8 to the outside of the package 3 while maintaining a high pressure, it suddenly expands to generate a pressure wave, resulting in noise. Therefore, the high-pressure exhaust discharged from the engine 6 is passed through a complicated path inside the silencer 52, and volume expansion and pressure wave interference are repeated to lower the exhaust pressure. As a result, the pressure of the exhaust gas discharged from the external exhaust pipe 8 to the outside of the package 3 is reduced, so that noise can be reduced. Thereby, the silencer 51 can mute the exhaust discharged from the engine 6.

  The first silencer 52a and the second silencer 52b are arranged in parallel with the partition wall 53 interposed therebetween. By arranging the first silencer 52a and the second silencer 52b in parallel, the exhaust pipe 7 and the external exhaust pipe 8 do not need to be routed in a complicated manner, and the internal configuration of the package 3 with no room for installation space is provided. It can be made compact.

  The first inflow port 57a is connected to the first engine 6a via the first exhaust pipe 7a. The second inflow port 57b is connected to the second engine 6b via the second exhaust pipe 7b. Since the two engines 6 are connected to one silencer 51, the cost for an expensive silencer can be reduced, and the cost of power generation equipment can be reduced as compared with the conventional one.

  One end of the first external exhaust pipe 8a is connected to the first outlet 58a. One end of the second external exhaust pipe 8b is connected to the second outlet 58b.

The silencer 51 is made from a metal such as iron, stainless steel, or aluminum.

The configuration of the exhaust passage of the power generation facility 1 will be described.
When the commercial power supply fails, the first power generator 2a and the second power generator 2b are operated. This case will be described with reference to FIG. The first switching plate 54a is set to the open position, and the second switching plate 54b is set to the open position. The exhaust discharged from the first engine 6a passes through the first exhaust pipe 7a, flows into the silencer 51 from the first inlet 57a, passes through the first silencer 52a, and flows out from the second outlet 58b. Then, it passes through the second external exhaust pipe 8b and is discharged to the outside of the package 3. The exhaust discharged from the second engine 6b passes through the second exhaust pipe 7b, flows into the silencer 51 from the second inlet 57b, passes through the second silencer 52b, and flows out from the first outlet 58a. Then, it passes through the first external exhaust pipe 8a and is discharged to the outside of the package 3. The exhaust flow path formed in this way is indicated by a white arrow in FIG.

When the commercial power supply fails, the exhaust of the first engine 6a is silenced by the first silencer 52a, and the exhaust of the second engine 6b is silenced by the second silencer 52b. Noise can be reduced as in the conventional case.

  The case where the first power generator 2a is trial run will be described with reference to FIG. The second switching plate 54b is set to the open position and the first switching plate 54a is set to the closed position. The exhaust discharged from the first engine 6a passes through the first exhaust pipe 7a, flows into the silencer 51 from the first inlet 57a, passes through the first silencer 52a, and the first switching plate 54a is in the closed position. Therefore, it flows into the second silencer 52b, passes through the second silencer 52b, flows out of the first outlet 58a, passes through the first external exhaust pipe 8a, and is discharged to the outside of the package 3. The exhaust flow path formed in this way is indicated by white arrows in FIG.

When the first power generation device 2a is trial run, the exhaust gas is passed through the first silencer 52a and the second silencer 52b by switching the exhaust flow path with the first switching plate 54a. Thus, the noise can be reduced as compared with the prior art.

A case where the second power generation device 2b is tested will be described with reference to FIG. The second switching plate 54b is set to the closed position, and the first switching plate 54a is set to the open position. The exhaust discharged from the second engine 6b passes through the second exhaust pipe 7b, flows into the silencer 51 from the second inlet 57b, passes through the second silencer 52b, and the second switching plate 54b is closed. Therefore, it flows into the first silencer 52a, passes through the first silencer 52a, flows out from the second outlet 58b, passes through the second external exhaust pipe 8b, and is discharged outside the package 3. The exhaust flow path formed in this way is indicated by a white arrow in FIG.

When the second power generation device 2b is trial run, the exhaust gas is passed through the second silencer 52b and the first silencer 52a by switching the exhaust flow path with the second switching plate 54b. Thus, the noise can be reduced as compared with the prior art.

The circuit configuration of the power generation facility 1 will be described.
As shown in FIG. 7, the power generation facility 1 further connects a power failure detector 22 that detects a power failure of the commercial power source 32, a control device 21 that controls the power generation facility 1, and the commercial power source 32 and the power failure detector 22. Detection input terminal 26, input terminal 27 connected to commercial power supply 32, output terminal 28 connected to load 31, load switch 23 as a switch, first generator switch 24a as a switch, And a second generator switch 24b which is a switch.

  When the power failure detector 22 detects that the voltage of the commercial power supply 32 has dropped below the reference voltage, the power failure detector 22 notifies the control device 21 that a power failure of the commercial power source 32 has been detected.

  In order to operate the first power generator 2a and the second power generator 2b when the commercial power supply fails, the control device 21 includes a first engine 6a, a second engine 6b, a load switch 23, and a first generator. The switch 24a, the second generator switch 24b, the first switching plate 54a, and the second switching plate 54b are controlled.

  When the first power generation device 2a is trial run, the control device 21 generates power with the first generator 5a so that the first engine 6a, the load switch 23, the first generator switch 24a, and the first switch. The plate 54a is controlled.

  When the second power generation device 2b is trial run, the control device 21 generates power by the second power generator 5b, so that the second engine 6b, the load switch 23, the second power generator switch 24b, and the second switch. The plate 54b is controlled.

  A power supply path 25A is provided between the first generator 5a and the first generator switch 24a. A power supply path 25B is provided between the second generator 5b and the second generator switch 24b. A power supply path 25C is provided between the load switch 23, the first generator switch 24a, and the second generator switch 24b. A power supply path 25 </ b> D is provided between the load switch 23 and the output terminal 28. A power supply path 25 </ b> E is provided between the load switch 23 and the input terminal 27.

  The load switch 23 is a switch circuit that switches the power supplied to the load 31 between the commercial power supply 32 and the power generation facility 1. When the power from the commercial power supply 32 is supplied to the load 31, the load switch 23 connects the power supply path 25D and the power supply path 25E. The load switch 23 connects the power supply path 25 </ b> C and the power supply path 25 </ b> D when supplying the power generated by the power generation facility 1 to the load 31. Normally, the load switch 23 connects the power supply path 25D and the power supply path 25E, and supplies the power of the commercial power supply 32 to the load 31.

  The first generator switch 24a is a switch circuit that opens and closes the output of the first generator 5a. The first generator switch 24a is closed when supplying power generated by the first generator 5a to the load 31, and connects the power supply path 25A and the power supply path 25C. Normally, the first generator switch 24a is open, and the power supply path 25A and the power supply path 25C are not connected.

  The second generator switch 24b is a switch circuit that opens and closes the output of the second generator 5b. The second generator switch 24b is closed when supplying the power generated by the second generator 5b to the load 31, and connects the power supply path 25B and the power supply path 25C. Normally, the second generator switch 24b is open, and the power supply path 25B and the power supply path 25C are not connected.

The operation of the power generation facility 1 will be described.
Here, with reference to FIG. 8, the operation of the power generation facility 1 will be described focusing on the processing procedure of the control device 21 that controls the power generation facility 1.
First, it is determined whether it is a power failure or a test run (step S1).

  When the commercial power supply fails, the control device 21 starts the first engine 6a and the second engine 6b and operates the first engine 6a and the second engine 6b in order to operate the first power generator 2a and the second power generator 2b. 2 The first generator 5a and the second generator 5b are activated by driving the engine 6b (step S2). Thereby, the 1st generator 5a and the 2nd generator 5b can start an electric power generation.

The control device 21 controls the load switch 23, disconnects the power supply path 25D and the power supply path 25E, disconnects the load 31 from the commercial power supply 32, and connects the power supply path 25C and the power supply path 25D to load. 31 is connected to the power generation facility 1 and preparation is made for supplying the power generated by the first generator 5a and the second generator 5b to the load 31 (step S3).

  The control device 21 controls and closes the first generator switch 24a, connects the power supply path 25A and the power supply path 25C, controls and closes the second generator switch 24b, and supplies the power supply path. 25B and the power supply path 25C are connected (step S4). Thereby, the electric power generated by the first generator 5 a and the second generator 5 b can be supplied to the load 31.

  The control device 21 waits until the commercial power supply 32 is restored (step S5; No). When the commercial power supply 32 is restored and power can be supplied, the control device 21 proceeds to the next step.

  The control device 21 controls and opens the first generator switch 24a, disconnects the power supply path 25A and the power supply path 25C, controls and opens the second generator switch 24b, and opens the power supply path 25B. And the power supply path 25C are separated (step S6).

The control device 21 controls the load switch 23, disconnects the power supply path 25C and the power supply path 25D, disconnects the load 31 from the power generation facility 1, and connects the power supply path 25D and the power supply path 25E to load. 31 is connected to the commercial power source 32 (step S7).

The control device 21 stops the first engine 6a and the second engine 6b, and stops driving the first generator 5a and the second generator 5b (step S8).

  In the case of performing a trial operation, it is determined whether the first power generation device 2a is to be trial run or the second power generation device 2b is to be trial run (step S9).

  When the first power generation device 2a is trial run, the control device 21 controls and rotates the first switching plate 54a to place the first switching plate 54a in the closed position (step S10). As a result, the exhaust discharged from the first engine 6a passes through the first silencer 52a and then passes through the second silencer 52b, so that noise can be reduced as compared with the prior art.

The control device 21 starts the first engine 6a, and starts the first generator 5a by driving the first engine 6a (step S11). Thereby, the 1st generator 5a can start an electric power generation.

The control device 21 controls the load switch 23, disconnects the power supply path 25D and the power supply path 25E, disconnects the load 31 from the commercial power supply 32, and connects the power supply path 25C and the power supply path 25D to load. 31 is connected to the power generation facility 1 and preparations are made to supply the power generated by the first generator 5a to the load 31 (step S12).

  The control device 21 controls and closes the first generator switch 24a, and connects the power supply path 25A and the power supply path 25C (step S13). Thereby, the electric power generated by the first generator 5a can be supplied to the load 31.

  The control device 21 waits until the commercial power source 32 is restored (step S14; No). When the commercial power supply 32 is restored and power can be supplied, the control device 21 proceeds to the next step.

  The control device 21 controls and opens the first generator switch 24a, and disconnects the power supply path 25A and the power supply path 25C (step S15).

The control device 21 controls the load switch 23, disconnects the power supply path 25C and the power supply path 25D, disconnects the load 31 from the power generation facility 1, and connects the power supply path 25D and the power supply path 25E to load. 31 is connected to the commercial power source 32 (step S16).

The control device 21 stops the first engine 6a and stops driving the first generator 5a (step S17).

  The control device 21 controls and rotates the first switching plate 54a to place the first switching plate 54a in the open position (step S18).

When the second power generation device 2b is trial run, the control device 21 controls and rotates the second switching plate 54b to place the second switching plate 54b in the closed position (step S19). Thereby, after the exhaust discharged from the second engine 6b passes through the second silencer 52b, the exhaust continues to pass through the first silencer 52a, and noise can be reduced as compared with the conventional case.

The control device 21 starts the second engine 6b, and starts the second generator 5b by driving the second engine 6b (step S20). Thereby, the 2nd generator 5b can start an electric power generation.

The control device 21 controls the load switch 23, disconnects the power supply path 25D and the power supply path 25E, disconnects the load 31 from the commercial power supply 32, and connects the power supply path 25C and the power supply path 25D to load. 31 is connected to the power generation facility 1 and preparations are made to supply the power generated by the second generator 5b to the load 31 (step S21).

  The control device 21 controls and closes the second generator switch 24b and connects the power supply path 25B and the power supply path 25C (step S22). Thereby, the electric power generated by the second generator 5b can be supplied to the load 31.

  The control device 21 waits until the commercial power source 32 is restored (step S23; No). When the commercial power supply 32 is restored and power can be supplied, the control device 21 proceeds to the next step.

  The control device 21 controls and opens the second generator switch 24b, and disconnects the power supply path 25B and the power supply path 25C (step S24).

The control device 21 controls the load switch 23, disconnects the power supply path 25C and the power supply path 25D, disconnects the load 31 from the power generation facility 1, and connects the power supply path 25D and the power supply path 25E to load. 31 is connected to the commercial power source 32 (step S25).

The control device 21 stops the second engine 6b and stops driving the second generator 5b (step S26).

  The control device 21 controls and rotates the second switching plate 54b to place the second switching plate 54b in the open position (step S27).

As described above, in the power generation facility 1 according to the embodiment of the present invention, when the commercial power supply fails, the exhaust of the first engine 6a is silenced by the first silencer 52a, and the exhaust of the second engine 6b is second silenced. Since the sound is silenced by the part 52b, the noise can be reduced by one silencer 51 as in the conventional case.

Further, when the power generation facility 1 performs a trial operation of the first power generation device 2a, the exhaust gas is passed through the first silencer 52a and the second silencer 52b by switching the exhaust flow path using the first switching plate 54a. Therefore, the noise can be reduced by one silencer 51 as compared with the conventional one.

Further, when the power generation facility 1 performs a trial operation of the second power generation device 2b, the exhaust is allowed to pass through the second silencer 52b and the first silencer 52a by switching the exhaust flow path with the second switching plate 54b. Therefore, the noise can be reduced by one silencer 51 as compared with the conventional one.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

The package 3 is not limited to being made of metal, and power generation equipment may be installed inside the building, and the room wall may be the package 3.

The generator is not limited to a synchronous generator, and may be an AC generator such as an induction generator.

The switching plate is not limited to a rectangular plate, and may be a circular plate, an elliptical plate, a semicircular plate, or the like.

The first silencer 52a and the second silencer 52b are not limited to being arranged in parallel with the partition wall 53 interposed therebetween, and may be in other arrangements.

The inside of the silencer 52 is not limited to the structure provided with the baffle plate, but may be a structure provided with irregularities on the wall, a double structure provided with a hollow structure with holes, or the like. Moreover, the inside of the muffling part 52 may not be provided with a special structure and may be filled with metal fiber, glass fiber, or the like as a sound absorbing material.

DESCRIPTION OF SYMBOLS 1 Power generation equipment, 2 Power generation apparatus, 2a 1st power generation apparatus, 2b 2nd power generation apparatus, 3 package, 4 housing | casing, 4a 1st housing | casing, 4b 2nd housing | casing, 5 generator, 5a 1st generator, 5b Second generator, 6 engine, 6a first engine, 6b second engine, 7 exhaust pipe, 7a first exhaust pipe, 7b second exhaust pipe, 8 external exhaust pipe, 8a first external exhaust pipe, 8b second external Exhaust pipe, 21 control device, 22 power failure detector, 23 load switch, 24a first generator switch, 24b second generator switch, 25A, 25B, 25C, 25D, 25E power supply path, 26 detection input terminal 27 input terminal 28 output terminal 31 load 32 commercial power source 51 silencer 52 silencer 52a first silencer 52b second silencer 53 partition wall 54 switching plate 54a first switching plate 54b Second switching plate, 55a First rotating shaft, 55b Second rotating shaft, 56a First switching chamber, 56b Second switching chamber, 57a First inlet, 57b Second inlet, 58a First outlet, 58b Second Outlet

Claims (5)

Package and
A silencer installed inside the package to mute the exhaust of the engine;
A first generator for generating AC power; a first engine for driving the first generator; and a first exhaust pipe for connecting the first engine and the silencer. A first power generator;
A second generator for generating AC power; a second engine for driving the second generator; and a second exhaust pipe for connecting the second engine and the silencer. A second power generator,
A first external exhaust pipe having one end connected to the silencer, the other end protruding outside the package, and exhausting the exhaust outside the package;
A second external exhaust pipe having one end connected to the silencer, the other end protruding outside the package, and exhausting exhaust to the outside of the package;
With
The silencer
A first silencer that silences the exhaust;
A second silencer that silences the exhaust;
A first switching plate that switches a destination of the exhaust that has passed through the first silencer to either the second external exhaust pipe or the second silencer;
A second switching plate that switches the destination of the exhaust gas that has passed through the second silencer to either the first external exhaust pipe or the first silencer;
Having
A power generation facility characterized by that. The first silencer and the second silencer are arranged in parallel so that the direction of exhaust in the first silencer and the direction of exhaust in the second silencer are parallel and opposite to each other. To be
The power generation facility according to claim 1. If the commercial power supply fails,
Operating the first power generator and the second power generator;
Exhaust gas exhausted from the first engine passes through the first exhaust pipe, passes through the first silencer, passes through the second external exhaust pipe, and exhausts to the outside of the package. Forming a flow path,
Exhaust gas discharged from the second engine passes through the second exhaust pipe, passes through the second silencer, passes through the first external exhaust pipe, and exhausts to the outside of the package. Forming a flow path,
The power generation facility according to claim 1, wherein the power generation facility is provided. When trial running the first power generator,
Exhaust gas discharged from the first engine passes through the first exhaust pipe, passes through the first silencer, passes through the second silencer, and passes through the first external exhaust pipe, And forming an exhaust passage for discharging to the outside of the package,
The power generation facility according to claim 1, wherein the power generation facility is provided. When trial running the second power generator,
Exhaust gas discharged from the second engine passes through the second exhaust pipe, passes through the second silencer, passes through the first silencer, and passes through the second external exhaust pipe, And forming an exhaust passage for discharging to the outside of the package,
The power generation facility according to claim 1, wherein the power generation facility is provided.

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