JP4823088B2 - Package type equipment - Google Patents

Description

  The present invention relates to an inlet structure of a package-type device, particularly a package-type power generation device installed outdoors using a heat engine such as a diesel engine as a drive source.

The package type power generation apparatus in the prior art includes a heat engine such as a diesel engine or a gas turbine, a generator driven by the heat generator, a control panel for controlling the operation of the engine, etc. It is used as an emergency power generator when it occurs and as a regular generator. When these package type power generators are installed outdoors, it is necessary to operate without anomalies even during storms such as heavy rain and typhoons.
Such package-type equipment includes, for example, combustion air necessary for operating a diesel engine, an intake port for sucking air for cooling a diesel engine and a generator, and an exhaust port for exhausting air. Is installed. In general, this air inlet is designed to have a predetermined air volume of 3 to 5 m / s for cooling the equipment in the package so that a large amount of rain is not sucked from the air inlet when it rains. . At such an intake wind speed, rain having a diameter of about 1 mm or more is not sucked in the case of rain. However, during a heavy rain or a storm when a typhoon comes, a wind of several tens of m / s is blown into the package inlet. At this time, a large amount of rainwater mixed with air is carried inside the package body and sucked into the intake element through the intake port of the diesel engine, causing damage to the intake turbocharger and further to the engine. Or intrusion into generators and control devices, resulting in poor insulation, causing serious problems such as the inability to generate power.

Various configurations related to the inlet structure have been presented (see, for example, Patent Document 1 and Patent Document 2). Patent Document 1: The configuration of Japanese Patent Application Laid-Open No. 8-297188 is intended to prevent the intake filter from being clogged with snow entering from the intake port as an air-absorption air-conditioning system snow protection device for a nuclear facility. It has a mechanism that removes snow, dust, and dust that have entered through the air inlet with a filter and then melts the snow with a heating coil. Patent Document 2: Japanese Patent Laid-Open No. 2002-285858 has a structure for preventing snow from entering by attaching an air filter to an introduction passage into a cover that covers a drive engine. These are structures in which the intake structure is directly subjected to the wind blown to the intake and the dynamic pressure of storms.
With such a prior art configuration, the amount of intake air increases abnormally during a storm, and it is not possible to reliably prevent rainwater from entering the package structure during a storm.

JP-A-8-297188 JP 2002-285858 A

  The present invention is intended to reliably prevent the intrusion of rainwater into the package structure during a storm by suppressing fluctuations in the intake air amount.

  The package-type device according to the present invention includes a first planar member that forms an end surface of a package structure housing the device and extends vertically, and the first planar member provided below the first planar member. A second planar member that is connected to and extends vertically, and an intake port that extends vertically to face the second planar member and opens downward to allow air to flow into the package structure A third planar member disposed between the lower portion of the first planar member and a second planar member provided at both end edges extending vertically to the third planar member. And a pair of side members constituting an intake hood having an air passage inside with the second planar member, and the paired side members extend from the upper part to the lower part between the third planar member. Consists of notches that are successively cut out It has a vapor portion, in which so as to flow the air through the air passage of the intake hood from the vent portion into the intake port.

  According to the present invention, it is possible to obtain a package-type device that can reliably prevent the intrusion of rainwater into the package structure during a storm by suppressing fluctuations in the intake air amount.

Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view showing the overall configuration of the packaged power generator. FIG. 2 is a perspective view showing the configuration of the intake hood. FIG. 3 is a diagram for explaining the amount of wind and rain sucked into the package structure. FIG. 4 is a top view showing an air flow in the package type power generating device. FIG. 5 is an end view showing an air flow in the package type power generating device. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 1, a diesel engine main body 1 is housed in a package structure 5 that constitutes an outer casing of a packaged power generation device. The package structure 5 described here has a width of 5 m, a depth of 2 m, and a size of about 2.5 m. The engine direct connection fan 1 a is driven by the output shaft of the diesel engine main body 1. The radiator 2 indirectly cools the engine cooling water by exchanging heat with the air blown by the engine direct connection fan 1a. The diesel engine body 1 and the radiator 2 are connected by a cooling water pipe (not shown), and the cooling water is circulated between the diesel engine body 1 and the radiator 2. The diesel engine main body 1 includes an engine intake air intake 1b, an intake element 1c for removing dust and the like in the air taken in from the engine intake air intake 1b, and air purified by the intake element 1c as diesel. A duct 1d for leading to an intake turbocharger 1e of the engine body 1, an exhaust turbocharger 1f provided at an exhaust port of the diesel engine body 1, and an exhaust flue 1g are provided.
A generator 3 driven by the diesel engine main body 1 is housed together with the diesel engine main body 1 inside a package structure 5. The diesel engine body 1 has a cooling air intake port 3a and a cooling air exhaust port 3b. A control device 4 for performing output adjustment, voltage adjustment, frequency adjustment and the like of the generator 3 is mounted on a control device mounting base 4a and housed in a package structure 5.

An exhaust duct 6 in which cooling air discharged from the radiator 2 is gathered on one end face of the package structure 5 at the left end in the drawing and is formed outside the package structure 5 to be discharged from the exhaust port A3. Is provided.
A package intake duct 7 and an intake hood 8 are provided at the right end of the package structure 5 in the figure, and the intake hood 8 whose horizontal cross section forms a U-shape is in contact with the package intake duct 7. The butt mounting surface of the package intake duct 7 and the U-shaped intake hood 8 is indicated by a line 8e.
The package intake duct 7 is formed so as to be integrally connected to the package structure 5 and project upward, and constitutes a part of the package structure 5. A planar member 7a constituting the right end portion of the package intake duct 7 in the figure forms an end surface of the package structure 5 and extends in the vertical direction. The package air intake duct 7 extends in the vertical direction so as to face the flat member 7a and the flat member 7b and constitutes the left end of the package air intake duct 7 in the illustrated direction, and extends in the vertical direction and faces each other. An air flow path a2 is formed between the pair of side members (not shown) and the top plate member 7c.
The package structure 5 is integrally connected to the package structure 5 and extends vertically, and the air flow path of the package intake duct 7 is provided between the lower end e1 and the upper end e2 of the planar member 7a of the package intake duct 7. A planar member 7d that forms a package air inlet A2 that opens downward and communicates with a2 is provided.
The planar member 8a constituting the intake hood 8 is provided below the planar member 7a constituting the package intake duct 7 so as to be connected to and extend vertically with the planar member 7a. An end face is formed. Side end members 8b and 8c (see FIG. 2) forming a pair formed by bending together with the planar member 8a are provided at both ends of the planar member 8a extending vertically. The side members 8b and 8c protrude from both end edges of the planar member 8a perpendicularly to the planar member 7d in a direction perpendicular to the planar member 8a, and the upper ends e3 of the side members 8b and 8c are in contact with the upper end e2 of the planar member 7d. The lower end e4 of the side members 8b and 8c reaches the lower end of the planar member 8a. The side members 8b and 8c have notches sp that are sequentially cut out from the upper part forming the upper end e3 to the lower part forming the lower end e4 between the side members 8b and 8c. The distance from the member 7d increases from the top to the bottom and reaches the maximum between the lower end e4 of the side members 8b and 8c and the lower end e5 of the planar member 7d, and a ventilation portion that opens to the side surface of the package component 5 is provided. Triangular side openings s1 and s2 (see FIGS. 4 and 5) to be formed are formed, and a space between the side openings s1 and s2 and the side openings s1 and s2 constitutes the first intake port A1.
Here, the intake hood 8 forms a ventilation path a1 between the planar member 8a and the side members 8b and 8c and the planar member 7d. The package body 5 is supplied with air from the first air inlet A1 through the air flow path a1 through the ventilation portion formed by the notches sp formed in the side members 8b and 8c, and passes through the package air inlet A2. Via, it reaches the air flow path a2 formed inside the package intake duct 7 and flows into the package structure 5.

  Next, the operation will be described. In FIG. 1, during a power generation operation, fuel is supplied from a fuel pipe (not shown) to the diesel engine body 1 and the diesel engine body 1 is operated. In synchronization with this, the engine direct connection fan 1 a is rotationally driven, and air is sucked into the package structure 5 through the first air inlet A 1, the package air inlet 8 b and the air intake duct 7. Part of this air is sucked into the intake turbocharger 1e via the air intake 1b and the intake element 1c and sent into the cylinder of the diesel engine main body 1 to burn the fuel and generate explosive force. The exhaust gas after combustion is discharged from the exhaust flue 1g via the exhaust turbocharger 1f. The generator 3 is driven by the output of the diesel engine body 1 to generate an electrical output. A part of the air taken in from the first air inlet A <b> 1 is also used for cooling the generator 3. Further, the air cools the periphery of the diesel engine body 1 and then passes through the radiator 2 to cool the engine coolant by heat exchange. The air after passing through the radiator 2 passes through the air flow path a3 formed inside the exhaust duct 6 and is exhausted from the exhaust outlet A3 to the outside of the package structure 5.

In general, the air intake amount is about 600 m ³ / min for a 500 kW class diesel power generation package type device. Also, in order to prevent raindrops with a diameter of about 1 mm or more from being sucked into the package air intake, the conventional air intake area of the package air intake is designed to be about 3 to 5 m / s at the wind speed of the package air intake. Has been produced. Even in the present invention, the intake air velocity at the first intake port A1 of the intake hood 8 is designed to be about 3 to 5 m / s.
The intake air amount is the air flow characteristic (air flow and static pressure) of the engine direct connection fan 1a shown by the curve L1 in FIG. It is determined at the intersection (operating point Ps0) of loss characteristics (air volume and pressure loss). FIG. 3 shows the relationship. This package type device is designed such that the air flow rate at the operating point Ps0 is 600 m ³ / min and the static pressure (pressure loss) is about 40 mmAq.
The relationship between the intake air amount Q and the pressure loss ΔP is calculated by equation (1).
Q = K (ΔP / R) ^1/2 ... Equation (1)
Here, K is a proportionality constant, and ΔP is a pressure loss in the flow path from the first intake port A1 to the exhaust port A3. R indicates the flow path resistance determined by the shape and structure from the first air inlet A1 to the package air outlet A3.

Now, the intake air amount Q is determined by the intersection (operating point P _S 0) of the air blowing characteristic (air flow and static pressure) of the engine direct connection fan 1a indicated by the curve L1 and the package pressure loss characteristic indicated by the curve PL.
When there is no wind and rain, the operating point P _S 0 is designed such that the air volume is 600 m ³ / min and the static pressure (pressure loss) is about 40 mmAq.
Therefore, if the intake air amount without wind and rain is Q ₀ , it can be expressed by the following equation (2) from equation (1).
Q ₀ = K (40 / R) ^1/2 ... Equation (2)

Next, the flow of wind and rain during a storm with a wind speed of 40 m / s will be described with reference to FIGS. FIG. 4 is a top view of the package structure 5 shown in FIG. 1 as viewed from above. FIG. 5 is an end view of the package structure 5 shown in FIG. 1 as viewed from the intake hood 8 side.
In FIG. 4, arrows A and B indicate the wind direction, and streamlines fa and fb indicate the flow of wind and rain. When wind and rain is sprayed from the direction of arrow A on the outer wall surface side of the planar member 8a forming the intake hood 8, the wind and rain collides with the outer wall surface of the intake hood 8 as shown by the streamline fa on both sides and up and down. The dynamic pressure energy of the wind and rain changes to a static pressure near the outer wall surface of the intake hood 8, and the static pressure is about 100 mmAq, but the static pressure level around the first inlet A1 where the wind and rain do not collide is There is almost no difference from when there is no wind and rain. For this reason, there is no change in the amount of intake air taken into the package structure 5.

Next, the case where the wind direction changes to the arrow B direction and wind and rain blown from one side opening s1 of the first intake port A1 in the intake hood 8 will be described.
In this case, as indicated by the streamline fb, the wind and rain (air) that has entered from one side opening s1 of the first intake port A1 exits from the other side opening s2 of the first intake port A1 that is the opposite side opening. Go. The pressure loss of the air passage is designed to be low, and the relationship between the air amount and the pressure loss is a characteristic as shown by a curve L0 in FIG. At an air volume of 600 m ³ / min, the pressure loss is about 4 mmAq. Accordingly, when wind and rain blows toward the side opening s1 at the entrance of the first intake port A1, the engine direct connection fan indicated by the curve L2 is obtained by adding the pressure loss indicated by the curve L0 to the air blowing characteristic of the engine direct connection fan 1a indicated by the curve L1. It can be considered that it has a ventilation characteristic of 1a, and the operating point is P _S 1. When the intake air amount at this time (the amount of wind and rain) and Q _1, Q ₁ is expressed by the following equation (3).
_{Q 1 = K {(40 +} 4) / R} 1/2 ......... formula (3)
That is, the ratio of the intake air amount Q ₁ when the wind speed is 40 m / s and the intake air amount Q ₀ when there is no wind and rain is the ratio of the equation (3) and the equation (2), and Q ₁ / Q ₀ = { (40 + 4) / 40} ^1/2 = 1.03 That is, there is almost no change in the amount of intake air to the package structure 5 between the case of a storm with a wind speed of 40 m / s and the case of no storm.

On the other hand, in the conventional structure without the U-shaped intake hood 8, since wind and rain blow directly into the intake port of the package structure, a curve L3 is obtained by adding the dynamic pressure of about 100 mmAq of wind and rain to the performance of the engine direct connection fan. The operating point of the flow path pressure drop characteristics to exhaust air outlet from the air inlet of the package structure shown in curve L3 and the curve PL becomes P _{S 2.} Intake air amount _{Q 2} at this time is expressed by Equation (4).
_{Q 2 = K {(40 +} 100) / R} 1/2 ......... formula (4)
Therefore _, the ratio of the intake air amount Q ₂ when the wind and rain blows directly and the air amount when there is no wind and rain is that Q ₂ / Q ₀ = {(40 + 100) / 40} ^1/2 = 1 from the equations (4) and (1). .87.
That is, in the conventional structure, wind and rain with a wind speed of 40 m / s blows directly into the intake port of the package, so that the intake amount is 1.87 times that when there is no wind and rain.
Thus, in the conventional structure, the amount of intake air increased by 1.87 times during a storm of 40 m / s, and the air velocity at the intake port of the package structure was 1.87 times (5.6 to 9.35 m / s). Become. As a result, there has been a problem that large rain having a diameter of about 4 mm infiltrates into the package structure.
Here, the phenomenon in which the falling raindrop is sucked into the package structure requires a wind pressure (proportional to the square of the wind speed) to overcome the weight of the raindrop. According to this calculation, rain having a diameter of 1 mm is sucked into the package if there is a wind speed of 4.5 m / s or more. Further, the air is sucked at a wind speed of 6.34 m / s or more at a diameter of 2 mm, 7.8 m / s or more at a diameter of 3 mm, and 9 m / s or more at a diameter of 4 mm.

  As described above, in the present invention, even when there is wind and rain of about 40 m / s, the amount of intake air sucked into the package structure 5 is hardly changed compared to the case where there is no wind and rain, and large fluctuations in the intake amount are certain. Therefore, the diameter of raindrops sucked into the package structure 5 is also kept to about 1 mm or less, and the influence of wind and rain on the diesel engine main body 1, the generator 3 and the control device 4 can be extremely reduced.

(1A) According to the first embodiment of the present invention, the first planar member 7a that extends vertically by forming the end surface of the package structure 5 that accommodates equipment such as the diesel engine main body 1 and the like, A second planar member 8a which is provided below the planar member 7a and extends vertically in connection with the first planar member 7a; and the package configuration which vertically extends opposite to the second planar member 8a A third planar member 7d disposed between a lower portion of the first planar member 7a and a second package member A2 that opens downward to allow air to flow into the body 5; The pair of the air intake hood 8 which is provided at both end edges of the flat member 7a extending vertically and protrudes toward the third flat member 7d and has the air passage a1 in the interior together with the second flat member 8a. Provided with side members 8b and 8c The side members 8b and 8c forming a pair are formed by notches sp that are sequentially cut out from the upper part to the lower part between the third planar member 7d and the side openings s1 that form the first air inlet A1. , S2, and air is circulated from the ventilation portion to the package intake port A2 through the ventilation passage a1 of the intake hood 8. Thus, it is possible to obtain a package-type device that can reliably prevent rainwater from entering the package structure.

Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a side view showing a schematic configuration of the package type power generating device. FIG. 7 is a perspective view showing a configuration of an intake hood to which a rainwater separation filter is attached.
In the second embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configuration described in the first embodiment and has the same effect. In the drawings, the same reference numerals indicate the same or corresponding parts.

In the second embodiment, as shown in FIG. 6, there is provided a rainwater separation filter 9 composed of a fibrous filter having a function of trapping rainwater contained in air sucked from the first air inlet A1. ing. The rainwater separation filter 9 made of a fibrous filter has a porosity [(ratio of gap volume (space volume) to filter volume)] of nearly 90%, and has a low pressure loss and a high rainwater separation function. The porosity AR is expressed by AR = volume of the filter, etc./volume determined by the shape of the filter.
As shown in FIG. 7, the rainwater separation filter 9 includes side members 8b and 8c that protrude toward the planar member 7d from the both ends of the intake hood 8 extending vertically to the planar member 8a toward the inside of the package component 5. Is attached along the oblique cut-out surface of the cut-out sp provided in the cross-section, and is disposed across the air flow path a1.

As described above, the rainwater separation filter 9 is attached with the upstream surface into which air flows in obliquely downward, so that wind and rain sucked from the first air intake port A1 passes through the rainwater separation filter 9 and reaches the package air intake port A2. The mounting cross-sectional area of the rainwater separation filter 9 can be easily obtained as approximately twice the opening cross-sectional area of the package air intake A2 without increasing the size of the package air intake of the conventional structure larger than the conventional structure. If the wind speed is 5 m / s, the wind speed on the surface of the rainwater separation filter 9 is a slight wind of about 2.5 m / s. Due to this effect, the U-shaped intake hood 8 can be configured in a compact manner, and the raindrop diameter entering the rainwater separation filter 9 can be reduced to about 0.7 mm. Here, raindrops are sucked at a wind speed of 2.5 m / s or more at a diameter of 0.7 mm.
Even during a storm, as in the first embodiment, a significant variation in the intake air amount is reliably suppressed as compared with the conventional configuration, and the intake air amount of the package is about 1.34 times. When the intake air amount is about 1.34 times, the passing wind speed is also increased, and a large raindrop reaches the rainwater separation filter 9, but since the average passing wind speed of the rainwater separation filter 9 can be kept low, the rainwater separation performance is improved. It can be maintained at a high level, and the rainwater is separated by the rainwater separation filter 9 with good performance, so that it is possible to more reliably prevent rainwater from entering the package structure 5.

(2A) According to the second embodiment of the present invention, the rainwater separating member comprising the rainwater separating filter 9 that separates the rainwater from the air passage a1 of the intake hood 8 in the configuration of the first embodiment of the first embodiment. Is arranged with the upstream surface into which the air flows in an obliquely downward direction, so that fluctuations in the intake air amount can be suppressed and rainwater can be reliably prevented from entering the package structure during a storm, and the rainwater separation member Thus, it is possible to obtain a package-type device that can more reliably prevent rainwater from entering the package structure.

Embodiment 3 FIG.
A third embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a perspective view showing a configuration of an intake hood to which a bowl-like body is attached. FIG. 9 is a top view showing the configuration of the intake hood to which the rod-like body is attached.
In the third embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configuration in the first embodiment or the second embodiment described above and exhibits the same operation. is there. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 8, the side members 8 b and 8 c are provided outside the side members 8 b and 8 c that protrude toward the planar member 7 d from the both end edges of the intake hood 8 that extend vertically to the planar member 8 d. A saddle-like body 10 having a U-shaped cross section is attached along the oblique cutout surface of the cutout sp. The bowl-shaped body 10 is arranged with the upper end joined to the upper end e2 of the planar member 7d and the lower end directed toward the lower end e4 of the side members 8b and 8c reaching the lower end of the planar member 8a (see FIGS. 1 and 6). .
FIG. 9 shows a state in which the rod-like body 10 is attached to both outer surfaces formed by the side members 8b and 8c of the intake hood 8 when viewed from above.

When a large amount of rain falls on the upper surface of the intake duct 7 in the package structure 5, the accumulated rain falls so that a waterfall flows on the side surface formed by the side members 8 b and 8 c in the U-shaped intake hood 8. come. This large amount of rainwater may flow into the first air inlet A1.
In the third embodiment, the bowl-shaped body 10 collects rain that flows down like a waterfall in the lower part of the U-shaped intake hood 8, and rains down on the ground below the U-shaped intake hood 8. Since the DR is washed away, there is no fear that a large amount of rain enters the first air intake port A1, so that there is a feature that a more reliable power generation operation is possible.

(3A) According to the third embodiment of the present invention, the side member 8b constituting the intake hood 8 in the configuration of the (1A) term of the first embodiment or the (2A) term of the second embodiment. 8c from the portion of the upper end e3 corresponding to the upper end e2 in the upper portion of the third planar member 7d toward the portion of the lower end e4 corresponding to the lower portion of the second planar member 8a (see FIGS. 1 and 6). Since the bowl-shaped body 10 for receiving the rainwater flowing down through the side members 8b and 8c is provided, it is possible to prevent the intrusion of the rainwater into the inside of the package structure during the storm by suppressing the fluctuation of the intake air amount. Thus, a package-type device that can more reliably prevent rainwater from entering the inside of the package structure with the hook-shaped body 10 can be obtained.

As described above, in the first embodiment, the second embodiment, and the third embodiment according to the present invention, the power generation apparatus including the diesel engine body 1 is described as a package type device. Needless to say, the present invention can be applied to all package-type devices as an air inlet structure of a package structure of a device having precision mechanism parts.
Further, according to the present invention, it is possible to easily take measures against a storm by simply attaching the U-shaped intake hood 8 to an existing package intake port.

It is a side view which shows schematic structure of the package type electric power generating apparatus in Embodiment 1 by this invention. It is a perspective view which shows the structure of the intake hood in Embodiment 1 by this invention. It is a diagram explaining the amount of wind and rain sucked by the package structure in Embodiment 1 by this invention. It is a top view which shows the flow of the air in the package structure in Embodiment 1 by this invention. It is an end view which shows the flow of the air in the package structure in Embodiment 1 by this invention. It is a side view which shows schematic structure of the package type electric power generating apparatus in Embodiment 2 by this invention. It is a perspective view which shows the structure of the intake hood which attached the rainwater separation filter in Embodiment 2 by this invention. It is a perspective view which shows the structure of the intake hood which attached the rod-shaped body in Embodiment 3 by this invention. It is a top view which shows the structure of the intake hood which attached the rod-shaped body in Embodiment 3 by this invention.

Explanation of symbols

  1 diesel engine body, 1a engine direct fan, 2 radiator, 1b intake air intake, 1c intake element, 1d duct, 1e intake turbocharger, 1f exhaust turbocharger, 1g exhaust flue, 3 generator, 3a cooling air intake 3b Cooling air exhaust vent, 4 control device, 4a control device mounting base, 5 package, 6 exhaust duct, 7 intake duct, 7a, 7b plane member, 7c top plate member, 7d plane member, 8 intake hood, 8a plane member , 8b, 8c Side member, 9 rainwater separation filter, 10 bowl-shaped body.

Claims (4)

  A first planar member that forms an end surface of a package structure that houses the device and extends vertically, and is provided below the first planar member and extends vertically in connection with the first planar member. A second planar member, and a lower portion of the first planar member, the second planar member extending vertically opposite to the second planar member and opening downward to allow air to flow into the package structure. A third planar member disposed between the first planar member and a second planar member provided at both end edges extending vertically of the second planar member and projecting toward the third planar member And a pair of side members constituting an intake hood having an air passage inside, and the pair of side members are cut into large portions sequentially from the top to the bottom between the third planar members. Having a vent part constituted by a notch, front from said vent part Packaged device which is characterized in that so as to flow the air to the intake port through the air passage of the intake hood.   The package-type device according to claim 1, wherein a rainwater separation member that separates rainwater into a ventilation path of the intake hood is disposed with an upstream surface into which air flows in an obliquely downward direction.   The side member constituting the intake hood receives rainwater flowing down from the portion corresponding to the upper portion of the third planar member toward the portion corresponding to the lower portion of the second planar member. The package type apparatus according to claim 1, wherein a package is provided.   4. The package type according to claim 1, wherein the device housed in the package structure is a package-type power generation device including a heat engine, a generator, and a control device. machine.

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