JP6657458B1 - Combined power generator and airflow control method for combined power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combined power generation device and the like which can be efficiently operated by operating with an air-cooled engine. SOLUTION: This is a composite power generation device having at least an air-cooled engine and a generator, and a first intake path that leads as cooling air for the air-cooled engine and a second intake path that leads to an air cleaner of the air-cooled engine. And a first exhaust path formed between the first exhaust guide plate and the second exhaust guide plate and at least a part of the exhaust gas existing above the air cleaner of the air-cooled engine to the confluence region. It has a second exhaust path and an exhaust port for exhausting the combined exhaust to the outside. [Selection diagram] Fig. 1

Description

The present invention relates to a combined power generation device and an airflow control method for the combined power generation device.
In particular, the present invention relates to a combined power generation device that efficiently generates predetermined electricity via an LP gas-derived engine that can be used as an emergency power supply or the like, and an air flow control method for such a combined power generation device.

2. Description of the Related Art Conventionally, in order to cope with a power failure occurring at the time of a natural disaster or the like, a combined power generation device configured to rotate a coil in a generator to generate a predetermined amount of electricity by operating an engine has been receiving attention.
This type of combined power generation device generally uses an air-cooled engine due to an emergency, restrictions on the use environment, and the like.
Therefore, in order to stably operate the combined power generation device derived from such an air-cooled engine, it is necessary to perform cooling and intake of the air-cooled engine stably and quantitatively. It is important that the exhaust be performed smoothly.
In addition, in order to ensure safety and soundproofing, the air-cooled engine and the generator are often housed in respective housings.
However, when the air-cooled engine and the generator are housed in the housing, there has been a problem that it is more difficult to balance the cooling and intake of the engine and the like.

Thus, for example, a power supply system using LP gas containing propane gas as a main component has been attracting attention as a kind of fuel cell (for example, see Patent Document 1).
More specifically, a main breaker connected to a commercial power source, and a branch breaker provided on a branch electric line that branches from the main electric line connected to the secondary side of the main electric breaker and supplies electric power to each electric device. And a switchgear provided in the middle of the main circuit, and a power generation unit using LP gas as a fuel is connected to the switchgear, so that either the commercial power or the private power It is a power supply system configured to be able to switch between crabs.
If the fuel is such LP gas, it is supplied in the form of a gas cylinder filled with the LP gas, so that there is an advantage that the fuel is relatively safe and there are few environmental problems.
In addition, the power supply system using the LP gas can be operated for a predetermined period (for example, 72 hours or more is a guide) according to the capacity of the gas cylinder.
Accordingly, since a predetermined amount of electricity can be secured during that time, such a power supply system derived from an engine using LP gas as a fuel has attracted attention.

Further, a cooling structure for a carburetor of an air-cooled engine has been proposed (for example, see Patent Document 2).
More specifically, as shown in FIG. 8, a predetermined cooling structure 100 has been proposed in which outside air introduced into the apparatus from an air intake 101 by a fan 102 reaches fins 103 and cools an engine 104. I have.
Further, in the cooling structure 100, a part of the outside air passes through the spiral case 105, the cover 106, the notch 107, and the air filter 108, is then taken in by the carburetor 109, and cools the carburetor 109. .
Moreover, since the air that has absorbed the heat of the carburetor is sent into the carburetor, the fuel (gasoline) can be easily vaporized, and therefore, it is expected that the fuel efficiency is improved.

Furthermore, an exhaust device for an engine-driven generator as shown in FIGS. 9A and 9B is disclosed (for example, see Patent Document 3).
Here, FIG. 9A is a diagram showing a relationship between the engine 202 and the generator 203 in the exhaust device 200 and a state of cooling.
FIG. 9B is a diagram in which members such as the exhaust duct 208 and the air cleaner 207 are overlapped in the engine-driven generator of FIG. 9A.
In the exhaust device 200, the engine 202, the generator 203, and the like are housed in the soundproof case 201. Therefore, when the fan 204 rotates by driving the engine 202, outside air flows into the soundproof case 201 from the cooling air introduction port 205, and the engine 202 can be cooled.

Further, in the exhaust device 200, a part of the cooling air that flows in is configured to be sucked into the air cleaner 207 from the air intake 206.
In the exhaust device 200, a muffler body 209 is disposed in the exhaust duct 208.
A large number of muffler tail pipes 210 are formed in the exhaust duct 208, and both ends of the muffler tail pipes 210 are connected to a cooling air passage, and the cooling air passage is provided in a part of the exhaust duct 208. The mouth 211 is reached.

Therefore, in the exhaust device 200, since the exhaust gas and the cooling exhaust air are mixed inside the exhaust duct 208, the adjustment of the concentration of the exhaust gas and the exhaust of the cooling air can be performed relatively favorably. Be expected.
Moreover, since the muffler body 209 is provided in the exhaust duct 208 and the muffler tail pipe 210 is opened in the exhaust duct, adjustment of exhaust gas concentration, reduction of noise, and exhaust of cooling air can be performed. It is also expected to perform well.

Japanese Patent No. 5154625 Japanese Utility Model Publication No. 59-100952 Japanese Utility Model Publication No. 58-172010

However, the power supply system using LP gas disclosed in Patent Literature 1 has a load control unit that can be remotely operated together with a branch breaker on an electric path connected to a load whose standby power is to be cut off, and that is provided with a mote breaker. Was formed.
Then, a current sensor provided on a branch circuit provided with the remote breaker detects a current value to check a standby power consumption state of a predetermined electric device, and operates a desired remote breaker to cut off standby power. I was
Therefore, the power supply system disclosed in Patent Literature 1 has a complicated control circuit, and has a problem that it is economically disadvantageous due to an increase in size and an increase in manufacturing cost.
On the other hand, Patent Literature 1 does not mention at all about a configuration or the like for stably and efficiently operating a power supply system with an engine using LP gas.

Further, the cooling structure 100 disclosed in Patent Document 2 intends to use the outside air taken in from one intake port as the intake of the carburetor after cooling the engine. There have been problems such as complications or excessively limited use.
Further, in fact, it is practically difficult to use outside air commonly for cooling the carburetor and for intake of the carburetor, and therefore, it is necessary to form a predetermined airflow in a stable and silent manner. Was difficult.
In addition, in the cooling structure 100, there is no description or suggestion about the relationship between the exhaust of the engine and the cooling wind by the outside air. I couldn't.

Furthermore, in the engine driven generator as the exhaust device 200 disclosed in Patent Document 3, a fan 204 is provided between the engine 202 and the generator 203 to generate a cooling air flow path.
In addition, the inner wall of the exhaust duct 208 and the outer wall of the muffler body are each configured to have a concavo-convex structure, and these convex portions are welded to each other to form an exhaust air path.
Therefore, the exhaust device 200 has an extremely complicated structure, and the entire device is increased in size, and the manufacturing and maintenance of the device are not easy.
In addition, in the exhaust device 200, the fan 204 and the exhaust duct 208 are connected to each other through a curved path.

Therefore, since the inside of the exhaust duct 208 has a complicated structure due to the muffler body and the muffler tail pipe, the airflow generated by the fan 204 and the airflow generated by the exhaust efficiently act on each other and cannot be cooled. The problem was seen.
That is, in the engine-driven generator as the exhaust device 200 disclosed in Patent Literature 3, the flow of the outside air taken into the inside and the flow of the exhaust by the muffler are linked by the fan 204 so that the introduction of the outside air and the exhaust are performed. Is difficult to perform stably and efficiently.

  Accordingly, the inventors of the present invention have conducted intensive studies and as a result, provided a predetermined first intake path and a second intake path, respectively, to sufficiently take in outside air, and furthermore, exhaust air from a muffler of an air-cooled engine, and the like. Not only that, by effectively exhausting at least a part of the exhaust present above the air cleaner of the air-cooled engine, the air-cooled engine can be operated stably, and in the generator, over a predetermined period of time. , And found that it can stably generate power.

  That is, an object of the present invention is to stably operate a generator by an air-cooled engine derived from a fuel gas such as LP gas, and to switch to a commercially available power supply in the event of a power outage to stop power supply. It is an object of the present invention to provide a combined power generation device having a simple structure and a stable airflow control method thereof.

The present invention relates to an air-cooled engine including an air cleaner, a carburetor, a combustion chamber, and a muffler, a generator that operates by predetermined combustion in a combustion chamber of the air-cooled engine, and takes in outside air from an inlet and guides the air to the air-cooled engine. This is a combined power generation device including a fan and a housing that houses these structural components.
In addition, outside air taken in from a first intake as an intake by a fan is taken in from a first intake path for guiding as cooling air for an air-cooled engine and a second intake as another intake. A second intake path for guiding outside air to the air cleaner of the air-cooled engine.
Furthermore, in order to guide the air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine to the merging area, the first exhaust guide plate and the second exhaust guide are arranged from below along the vertical direction. A guide plate is provided, and a first exhaust path formed between the first exhaust guide plate and the second exhaust guide plate, and at least one exhaust gas present above the air cleaner of the air-cooled engine. And a second exhaust path for guiding the portion to the merge area.
Then, the air after cooling the air-cooled engine and the exhaust air discharged from the muffler of the air-cooled engine, which are formed via the first exhaust path, merged in the merge area, and the second exhaust path. becomes Te, together with part of the exhaust gas discharged from the muffler air-cooled engines, which possess a discharge port for discharging to the outside of the housing, a.
There is a vertical wall between the air-cooled engine and the first intake path and the second intake path, and a first fan for guiding outside air to a part of the vertical wall by a fan. An intake port and a second intake port communicating with the air cleaner are provided, and a hood-shaped guide plate that opens downward along the vertical direction is provided on the outside air inlet side of the first intake port. There is provided a combined power generation apparatus characterized in that a hood-shaped guide plate that opens upward along the vertical direction is provided on the outside air inlet side of the second intake port, and the above-described problem is solved. can do.

That is, by configuring the combined power generation device of the present invention in this way, the outside air taken in from the intake is clearly divided into a first intake path and a second intake path, and the air is cooled by an air-cooled engine. And the air for cooling the air-cooled engine can be sufficiently inhaled.
In addition, the airflow passing through the first exhaust path is controlled by the first exhaust guide plate and the second exhaust guide plate, respectively, to efficiently join the merging area, and to sufficiently reduce the temperature. Can be discharged to the outside.
Furthermore, at least a part of the exhaust present above the air cleaner of the air-cooled engine can also be merged into the merge area via the second exhaust path and discharged to the outside of the housing.
Therefore, it is possible to effectively prevent the exhaust of the high-temperature engine and the like, including the upper part of the air cleaner, from staying inside the housing, and further stably rotate the generator using the air-cooled engine, It is possible to reliably generate power while preventing incomplete combustion and the like.
Therefore, according to such a combined power generation device, even during a power outage, the air-cooled engine derived from the fuel gas such as the LP gas causes the predetermined generator to rotate quickly and stably so that the predetermined amount of the gas can be reduced. Generates electricity and becomes a safe and secure electricity source.
Also, by providing the vertical wall at the predetermined position with the first intake port for the fan to take in the outside air and the second intake port communicating with the air cleaner, the surrounding area of the air-cooled engine is effectively reduced. The air can be stably burned while being air-cooled.
Therefore, even in the event of a power outage, an air-cooled engine derived from fuel gas such as LP gas rotates a predetermined generator quickly and stably to generate a predetermined amount of electricity, thereby providing a safe and secure power supply. Source.
With such a configuration, since the first intake port and the second intake port are provided with the predetermined hood-shaped guide plates, respectively, the influence on the other intake is lessened. Become.
Therefore, the air for cooling the air-cooled engine can be taken in from the first intake port and the intake air for the air-cooled engine can be taken in sufficiently and quickly from the second intake port.

In constituting the combined power generation device of the present invention, a third intake as an intake for taking in outside air for cooling the generator is provided separately from the first intake and the second intake. , Is preferably provided in a part of the housing.
Thus, the intake path (sometimes referred to as a third intake path) and the exhaust path (sometimes referred to as a third exhaust path) for cooling the generator are divided into the first intake path and the third intake path. The second intake path, the first exhaust path, and the second exhaust path can be provided independently.
Therefore, a cooling system dedicated to the generator, which hardly affects other intake paths and exhaust paths, is secured.
Note that the intake of the third intake path is provided on the bottom surface of the casing and directly below the generator, and the exhaust port of the third exhaust path is on the side of the casing, Is preferably provided at the side position.
By doing so, the design of the combined power generation device becomes easy, and the influence of the generator on the cooling system of the air-cooled engine and the air intake of the air cleaner is further reduced.

Further, in configuring the combined power generation device of the present invention, when the first exhaust guide plate is viewed from the side, the first exhaust guide plate is inclined upward and obliquely rightward from the muffler of the air-cooled engine toward the merging region. Is preferred.
With this configuration, the exhaust gas ejected from the muffler of the air-cooled engine can be easily moved along the wall surface of the first exhaust guide plate. And then uniformly mixed with air or the like to sufficiently lower the temperature (for example, 50 ° C. or less), and can be discharged outside.

Further, in configuring the combined power generation device of the present invention, when the second exhaust guide plate is viewed from the side, a predetermined space is provided from above the muffler of the air-cooled engine, and A first inclined portion that inclines upward in a diagonal right direction toward the top plate, a horizontal portion that extends in the horizontal direction with a predetermined gap between the first inclined portion and the top plate of the housing, It is preferable to have a second inclined portion which is inclined downward in the right oblique direction toward the confluence area at a predetermined interval from the top plate.
With this configuration, the exhaust gas ejected from the muffler of the air-cooled engine can be easily moved not only along the first exhaust guide plate but also along the wall surface of the second exhaust guide plate. In the confluence area, the moved exhaust gas can be uniformly mixed with other air or the like, sufficiently cooled, and discharged to the outside.

Further, in configuring the combined power generation device of the present invention, it is preferable that the engine is an engine using LP gas as fuel.
As described above, by using an air-cooled engine using LP gas (main component: propane gas) as a fuel, it is easy to obtain and manage LP gas as a fuel, and it is excellent in environmental safety and economically. A combined power generation device can be provided.
Note that a predetermined amount (for example, 5% by volume or less based on the total amount) of odor, methane gas, ethane gas, butane gas, or the like may be mixed in the LP gas.

Another aspect of the present invention provides an air-cooled engine including an air cleaner, a carburetor, a combustion chamber, and a muffler, a generator operating by predetermined combustion in a combustion chamber of the air-cooled engine, and taking in outside air from an inlet. , a fan for guiding the air-cooled engine, possess a housing that accommodates these structural components therein, and a cooling-type engine, a first intake path and a second intake passage, between the respective vertical A first intake port for guiding outside air by a fan and a second intake port communicating with an air cleaner provided on a part of the vertical wall; A hood-shaped guide plate that opens downward along the vertical direction is provided on the outside air inlet side, and a hood-like opening that opens upward along the vertical direction on the outside air inlet side of the second intake port. double the guide plate is provided A airflow control method of the power generation apparatus, a stream control method for combined cycle power generation system which comprises the following steps 1-5.
(Step 1)
A step of introducing outside air taken in from a first intake as an intake by a fan as air for cooling the air-cooled engine via a first intake path to the air-cooled engine (step 2)
A step of guiding outside air taken in from a second intake different from the intake to the air cleaner of the air-cooled engine via a second intake path (step 3)
In a carburetor of an air-cooled engine, air purified by an air cleaner and LP gas are mixed, transported to a combustion chamber, ignited by a spark plug, driven by a piston, and further driven by the piston. Step of generating electricity by rotating the generator through the connected predetermined shaft (Step 4)
A first exhaust guide plate and a second exhaust guide plate are provided from below along the vertical direction, and a first exhaust guide plate and a second exhaust guide plate are formed between the first exhaust guide plate and the second exhaust guide plate. The air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine are guided to the confluence area via the exhaust path of No. 1 and at least the exhaust gas present above the air cleaner of the air-cooled engine is discharged. Step of leading a part to the junction area via the second exhaust path (Step 5)
The air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine via the first exhaust path, and the air cleaner of the air-cooled engine via the second exhaust path. A step of combining at least a part of the exhaust present above in the joining area and discharging the outside while mixing

That is, according to another aspect of the present invention, the intake of the outside air is arranged on the bottom surface of the housing near the engine, and the outside air taken in by the fan (sirocco fan) therefrom via the first intake path is The guide plate guides the air-cooled engine as air for cooling the air-cooled engine, and cools the air-cooled engine from around the air-cooled engine.
Then, the air cooled from the outside of the air-cooled engine is guided to the junction area along the first exhaust guide plate and the second exhaust guide plate via the first exhaust path.
In addition, a part of the outside air is taken into the air cleaner disposed above the air-cooled engine via the second intake path to be cleaned.
Next, the LP gas is mixed with the outside air (air), which is transported to the carburetor and purified by the air cleaner, and is further transported to the combustion chamber, where it is ignited by a spark plug and installed in the combustion chamber. The piston moves reciprocally.
Therefore, it is possible to generate electric power by rotating the generator through the predetermined shaft connected to the piston.
Then, the exhaust gas discharged from the muffler connected to the combustion chamber can be guided to the merge area via the first exhaust path.
Further, a part of the high-temperature exhaust gas discharged from the muffler can be guided to the merge area via the second exhaust path.
Therefore, according to such an airflow control method of the combined power generation device, even in the event of a power failure, the air-cooled engine stably generates predetermined electricity by rotating the generator, thereby providing a safe and secure electricity supply source. .

FIG. 1 is a partially transparent perspective view used for schematically explaining the combined cycle power generation device of the present invention. FIG. 2A is a side cross-sectional view provided for schematically explaining the combined cycle power generation device of the present invention, and FIG. 2B is a diagram schematically illustrating the flow of airflow in the combined cycle power generation device of the present invention. FIG. 3 is a cross-sectional view provided for description. FIG. 3 is a bottom view of another embodiment of the combined cycle power generator of the present invention. FIG. 4 is a block diagram provided to schematically explain the combined cycle power generator of the present invention. FIGS. 5A and 5B are diagrams for explaining the relationship between the distance from the muffler and the exhaust gas temperature of the combined cycle power generator of the present invention. FIG. 6 is a flowchart provided to schematically explain the airflow control method of the combined cycle power generation device of the present invention. FIG. 7 is a schematic diagram provided to explain a first intake path and a second intake path in the first embodiment of the present invention. FIG. 8 is a schematic diagram provided to explain a conventional device disclosed in Patent Document 2. FIGS. 9A and 9B are schematic views provided to explain a conventional device disclosed in Patent Document 3. FIG.

[First Embodiment]
The combined power generation device 10 of the first embodiment includes an air cleaner 13a, a carburetor 13b, a combustion chamber 13c, and a muffler 13d, as shown in a partially perspective view of FIG. 1 and a side sectional view of FIG. The air-cooled engine 13, a generator 15 that operates by predetermined combustion in a combustion chamber 13 c of the air-cooled engine 13, and outside air are taken in from an inlet (sometimes referred to as a first inlet 17), and are air-cooled. It has a fan 19 leading to the engine 13 and a housing 11 for housing these structural components inside.

  Further, a first intake path A1 for guiding outside air taken in from the first intake 17 as an intake by the fan 19 as cooling air for the air-cooled engine 13 and a second intake as another intake. A second intake path A2 for guiding outside air taken in from the inlet 43 to the air cleaner 13a of the air-cooled engine 13.

  Further, in order to guide the air after cooling the air-cooled engine 13 and the exhaust discharged from the muffler 13d of the air-cooled engine 13 to the merge area 25, the first exhaust guide plate 21c and the first exhaust guide plate 21c are arranged vertically from below. A second exhaust guide plate 21d is provided, a first exhaust path C1 formed between the first exhaust guide plate 21c and the second exhaust guide plate 21d, and the air-cooled engine 13 And a second exhaust path C2 that is present above the air cleaner 13a and guides at least a part of the exhaust to the merge area 25.

  Then, the air after cooling the air-cooled engine 13 and the exhaust gas discharged from the muffler 13d of the air-cooled engine 13 via the first exhaust path C1 and the second And an exhaust port 27 that is located above the air cleaner 13a of the air-cooled engine 13 and that exhausts at least a part of the exhaust to the outside of the housing 11 via the exhaust path C2. Is a combined power generation device 10.

Hereinafter, the combined power generation device 10 of the first embodiment of the present invention will be specifically described with reference to the drawings as appropriate.
Further, the drawings used for the description are only schematically shown to the extent that these inventions can be understood. Further, in each of the drawings used for the description, the same components are denoted by the same reference numerals, and the description thereof may be omitted.
It should be noted that the structural examples, used members, and the like described in the following description are merely preferred examples within the scope of the present invention. Therefore, for no particular reason, the present invention is not limited to the description of the embodiments below.

1. Basic Structure of Combined Cycle Generator FIG. 1 is a partially transparent perspective view showing an outline of a combined cycle generator 10 according to the first embodiment, and FIG. 2A illustrates a characteristic portion of the combined cycle generator 10. FIG. 2 is a side sectional view of the generator 15 of FIG. 1, which is vertically divided along a connection direction to an air-cooled engine 13, and a cut surface thereof is viewed from a side.
Further, in FIG. 2B, broken lines with arrows indicate the flow of the airflow, respectively.

The combined power generation device 10 according to the first embodiment includes, as main components, a housing 11, an air-cooled engine 13, a generator 15, a first intake 17, a second intake 43, and an exhaust guide plate. (First exhaust guide plate 21c, second exhaust guide plate 21d), intake ports (first intake port 13e, second intake port 13g), fan (sirocco fan) 19, first intake path A1, the second intake path A2, the first exhaust path C1, the second exhaust path C2, the merging area 25, the exhaust port 27, the third intake port 31, the second exhaust port 33, and the control unit 35, Preferably, it is provided.
With this configuration, the outside air for cooling the engine is guided to the air-cooled engine 13 by the fan 19, and the outside air is guided to the first intake path A1 by the first intake guide plate 22a. Thus, the air-cooled engine 13 can be intensively cooled from the periphery thereof.
The air cleaner 13a of the air-cooled engine 13 has an LP gas cylinder 41 as a fuel source.
Are connected by a gas pipe 41a, and the LP gas is conducted.

2. Housing The housing 11 shown in FIGS. 1 and 2 is a member for securing the safety and soundproofing of the combined power generation device 10 to a user and the like, and the weather resistance and mechanical characteristics of the combined power generation device 10. It is.
The housing 11 is made of, for example, a metal (mainly iron) painted plate or punched plate having a predetermined thickness of 0.3 to 3 mm.
Then, in order to exhibit flame retardancy and sound absorbing properties, heat-resistant heat insulating material or flame-retardant sound absorbing material having a predetermined thickness of 1 to 30 mm is applied to the surfaces of these painted plates and punched plates as required. (Glass wool, melamine-based resin plate, urethane foam material, etc.) are preferably laminated.
Therefore, the size and shape of the housing 11 can be any size and shape according to the specifications of the combined power generation device 10 as long as the size of the combined power generation device 10 does not become excessively large.
However, in this example, the case 11 has a substantially rectangular parallelepiped shape, and thus has a bottom surface, a ceiling surface, and four side surfaces.

3. Air-Cooled Engine The air-cooled engine 13 shown in FIGS. 1 and 2 is a type of engine that takes in outside air and uses it to drive the air-cooled engine 13 to rotate and thus prevent incomplete combustion.
In the case of this example, the air-cooled engine 13 takes in outside air and is driven using LP gas as fuel.
Therefore, the air-cooled engine 13 supplies the air to the engine cover 13f, the air cleaner 13a, the carburetor 13b, the combustion chamber 13c, the muffler 13d, the first intake port 13e for introducing cooling air into the engine cover 13f, and the fuel to the air cleaner 13a. A second intake port 13g for guiding air used for combustion of the fuel cell.

Therefore, the air-cooled engine 13 has an engine cover 13f provided with an air gap around the air-cooled engine 13, and the air gap between the air-cooled engine 13 and the engine cover 13f serves as an external air path for cooling the air-cooled engine. Become.
In this embodiment, the air-cooled engine 13 has an air cleaner 13a disposed vertically above the engine body.

4. Generator The generator 15 shown in FIGS. 1 and 2 and the like is rotated in connection with the piston drive of the air-cooled engine 13, whereby the coil disposed inside the generator 15 also rotates. It generates a certain amount of electricity.
That is, the generator 15 converts the piston drive of the air-cooled engine 13 into rotational force generated via the camshaft, and the correspondingly connected generator 15 and the coil disposed therein also rotate. Thus, predetermined electricity can be generated by electromagnetic induction.

5. Inlet (1) First Inlet As shown in FIGS. 1, 2, and 3, the first inlet 17 for effectively taking in the outside air for air cooling of the air-cooled engine 13 is provided with a housing. It is preferable to be provided on the bottom surface of the body 11 near the air-cooled engine 13.
Such a first inlet 17 is a predetermined opening toward the housing 11, and can be configured by attaching, for example, a metal mesh provided with a filter.
In addition, the size and shape of the first inlet 17 are arbitrary according to the specifications (electromotive force and the like) of the combined power generation device 10.
The first inlet 17 of the first embodiment has a substantially rectangular planar shape, and has a length approximately half the width of the housing 11.
Therefore, when the width dimension of the housing 11 is 100%, it is preferable that the lateral length of the first inlet 17 be a value within the range of 30 to 80%.

(2) Second Inlet As shown in FIG. 1, FIG. 2, or FIG. 3, etc., a second inlet for effectively taking in outside air from an air cleaner 13a (sometimes referred to as an air filter) of the air-cooled engine 13. The second intake 43 is preferably provided on the bottom surface of the housing 11 and slightly away from the vicinity of the air-cooled engine 13.
The second intake 43 is a predetermined opening toward the housing 11, and can be configured by attaching, for example, a metal mesh provided with a filter.
The size and shape of the second intake 43 are arbitrary according to the specifications (electromotive force and the like) of the combined power generation device 10.
Note that the second inlet 43 of the first embodiment has a substantially rectangular planar shape and a lateral length of about half the width of the housing 11, for example, a width of the housing 11. When it is set to 100%, it is preferable that the lateral length of the second inlet 43 be a value within the range of 20 to 60%.

(3) Third Inlet As shown in FIGS. 1 and 2, FIG. 3, and the like, a third inlet 31 for effectively taking in the outside air for air cooling of the generator 15 is provided in the housing 11. It is provided on the bottom surface near the generator 15.
Such a third inlet 31 is a predetermined opening toward the housing 11, and can be configured by, for example, attaching a metal mesh provided with a filter.
The size and shape of the third inlet 31 are arbitrary according to the specifications (electromotive force and the like) of the combined power generation device 10.
The third inlet 31 has a substantially rectangular planar shape, like the first inlet 17 and the second inlet 43, and has a length approximately half the width of the housing 11. It is preferable to have one.

6. Intake guide plate (first intake guide plate, second intake guide plate)
(1) First intake guide plate The first intake guide plate is located at a position corresponding to the height of an intake port for forcibly taking in outside air by a fan for cooling an air-cooled engine. It is provided to reliably take in outside air via the first intake path.
That is, as shown in FIG. 2B, when the first intake guide plate 22a is a first intake port 13e that takes in outside air for cooling the air-cooled engine 13, the first intake It is preferable that a hood-shaped intake guide plate that opens downward in the vertical direction is provided on the outside air intake side of the opening 13e.

By providing the first intake guide plate 22a having a predetermined shape at a predetermined position in this way, the first intake guide plate 22a is mainly used for cooling the air-cooled engine 13 without obstructing the intake of outside air by the second intake guide plate 22b. It becomes easy to take in the outside air stably and quickly.
Therefore, the first intake guide plate 22a has a guide function of guiding the air taken in from the first intake 17 by the fan 19 to the first intake 13e along the first intake path A1. are doing.
Further, the first intake guide plate 22a can perform combustion in the air-cooled engine 13 more stably and effectively, and also cools the periphery of the air-cooled engine 13 more effectively. It has a pressure adjustment function that prevents an excessive amount of air from being taken in and allows a stable pressure to be taken in.

(2) Second intake guide plate Further, the second intake guide plate 22b is a second intake guide plate for guiding a part of the outside air taken in from the second intake 43 to the air cleaner 13a of the air-cooled engine 13. Is provided at a position equal to the height of the intake port 13g, and is for stably and reliably guiding outside air to the second intake path A2.
That is, as shown in FIG. 2 (b), a hood-shaped guide plate having an opening upward in the vertical direction on the outside air intake side of the second intake port 13g as the second intake guide plate 22b. Is preferably provided.
By providing the second hood-shaped guide plate at the predetermined position as the second intake guide plate 22b, an excessive amount of air can be prevented without obstructing the intake of outside air by the first intake guide plate 22a. The intake of air can be prevented, and the outside air can be taken into the air cleaner 13a of the air-cooled engine 13 at a stable pressure.

The first intake guide plate 22a and the second intake guide plate 22b are made of, for example, a metal plate material such as iron, stainless steel, or an aluminum alloy, or a ceramic plate material. It is preferable that the thickness is usually in the range of 0.3 to 8 mm.
It is also preferable that the first intake guide plate 22a and the second intake guide plate 22b are configured by combining heat insulating materials, sound absorbing materials, and the like that are added as necessary.

7. Inlet (first inlet, second inlet)
(1) First Intake Port As shown in FIG. 2B, the air-cooled engine 13 is connected to the first intake path A1 and communicates with the inside of the engine cover 13f of the air-cooled engine 13. It is preferable to provide one intake port 13e.
The reason for this is that the air taken in from the first inlet 17 can be effectively guided to the periphery of the air-cooled engine 13, so that the air-cooled engine 13 can be cooled stably.

(2) Second Inlet Port As shown in FIG. 2B, the air-cooled engine 13 is connected to a second intake path A2 and communicates with an air cleaner 13a of the air-cooled engine 13. It is preferable to provide the intake port 13g.
The reason for this is that the second intake port 13g for taking in air into the air cleaner 13a allows the second intake path A1 to be provided separately from the first intake path A1 for stably cooling the air-cooled engine 13. This is because it functions as the route A2.
In addition, the volume of the second air inlet 13g also functions as a buffer for air intake. Therefore, according to this preferred embodiment, the fluctuation of the condition for taking in air into the air cleaner 13a is smaller than in the case where it is not, so that the operation stability of the carburetor 13b can be further improved.

8. Fan As shown in FIGS. 1 and 2, the fan (sirocco fan) 19 is provided near the end of the air-cooled engine 13 opposite to the generator 15.
Therefore, the center position of the first intake port 13e provided in the middle of the first intake guide plate 22a arranged in the vertical direction and the center position of the fan 19 match when viewed in the horizontal direction. Is preferred.
The fan 19 has a plurality of blades, which are suitable for cooling, and cools the air-cooled engine 13 so that outside air is supplied from outside the housing 11 to the housing 11 via the first intake 17. Inside.
Therefore, the fan 19 may be integrated with the air-cooled engine 13 or may be an independent type separated by a predetermined distance.

By using a sirocco fan as the fan 19, since the static pressure is high and the air volume is large, each part can be sufficiently cooled. Conversely, the rotational speed is relatively low and the noise is low, so that the noise level can be reduced.

9. Intake path (first intake path and second intake path)
(1) First Intake Path As shown in FIGS. 2A and 2B, a first intake path A1 is provided with a predetermined amount of outside air by a fan 19 provided at an end of the air-cooled engine 13. This is an intake configuration for forcibly and quickly leading the air to the air cleaner 13a.
Therefore, the first air intake path A1 is disposed so as to reach the engine cover 13f of the air-cooled engine 13 from the first inlet 17 provided on the bottom surface of the housing 11 and communicating with the outside of the housing 11. And a hood-shaped guide plate as one intake guide plate 22a.
At a predetermined position of the vertical wall 21a where the first intake guide plate 22a is provided, a first intake port 13e is provided as a permeation portion of the outside air (air). First, the air-cooled engine 13 is arranged.
Therefore, the outside air (air) taken in through the first intake path A1 can be suitably used as the cooling air around or inside the air-cooled engine 13, preventing overheating of the air-cooled engine 13 and stabilizing it. Dynamic drive can be secured.

(2) Second Intake Path As shown in FIGS. 2A and 2B, the second intake path A <b> 2 is connected to outside air guided into the housing 11 by a predetermined pressure reduction state of the air-cooled engine 13. To the air cleaner 13a above the air-cooled engine 13.
Therefore, the second intake path A2 is vertically arranged from the second inlet 43 provided on the bottom surface of the casing 11 to the outside of the casing 11 to the air cleaner 13a of the air-cooled engine 13. And a hood-shaped guide plate as the second intake guide plate 22b.
At a predetermined position of the vertical wall 21a to which the second intake guide plate 22b is attached, a second intake port 13g is provided as a permeation portion of the outside air (air). First, the air cleaner 13a of the air-cooled engine 13 is connected.
Therefore, the outside air (air) taken in the second intake path A2 can be suitably used by the air cleaner 13a of the air-cooled engine 13, and is eventually mixed with the LP gas by the carburetor 13b, and is stabilized by the combustion chamber 13c. It can be used as a combustion aid.

The ratio of the amount of outside air permeated through the second intake path A2 to the amount of outside air permeated (flow rate) through the first intake path A1 indicates that the combustion performance of the air-cooled engine 13 has stable driving performance, and furthermore, has a stable vibration. Although it is preferable to determine in consideration of the flow rate, it is usually preferable to set the flow rate to a value in the range of 1: 1 to 20, more preferably to a value in the range of 1: 1.5 to 10, and 1: More preferably, the value is in the range of 2 to 5.
The ratio of the amount of outside air permeated through the second intake path A2 to the amount of outside air permeated (flow rate) through the first intake path A1 is determined by the vertical direction of the first intake guide plate 22a and the second intake guide plate 22b. Length, width, outside air permeation area of the second intake path A2, outside air permeation area of the first intake path A1, furthermore, the suction force (rotation speed, etc.) of the fan 19 of the air-cooled engine 13, the air-cooled engine The pressure can be adjusted as appropriate depending on the predetermined pressure reduction state of the engine 13, the combustion state of the air-cooled engine 13, and the like.

10. Exhaust path (first exhaust path and second exhaust path)
(1) First Exhaust Path As shown in FIG. 2B, the first exhaust path C1 is guided to the air-cooled engine 13, and the air used for cooling the air-cooled engine 13 and the muffler This is a path for guiding the exhaust gas from 13d to the merge area 25.
In the case of the present invention, the first exhaust passage C1 is arranged so as to extend from the end of the air-cooled engine 13 on the generator 15 side to the side surface of the housing 11 on the exhaust port 27 side. It is mainly constituted by a space between the second exhaust guide plate 21d and the second exhaust guide plate 21d.
Specifically, the second exhaust guide plate 21d is installed above the first exhaust guide plate 21c, and is disposed so as to reach from the upper side of the muffler 13d to the side surface of the housing 11 on the exhaust port 27 side. It was done.
Each of the first exhaust guide plate 21c and the second exhaust guide plate 21d has a curved surface that is inclined upward toward the merge region 25 so that the exhaust gas from the muffler 13d easily reaches the merge region 25. Preferably, it is shaped.

(2) Second Exhaust Path As shown in FIG. 2 (b), the second exhaust path C2 prevents a part of exhaust gas from the muffler 13d from reaching at least the air cleaner 13a and an air-cooled engine. 13 is a path that guides at least a part of the exhaust gas existing above the air cleaner 13 a in a predetermined direction, specifically, in the direction of the merge area 25.
This is to cope with the problem that the high-temperature exhaust gas discharged from the muffler 13d easily stays above the air cleaner 13a of the air-cooled engine 13 through a predetermined gap.
Accordingly, the temperature above the air cleaner 13a can be effectively lowered, and the air can be led to the merge area 25 without stagnation due to the ejector effect with the first exhaust path C1.

In addition, it is preferable to provide a pair of heat shield plates 28 so as to sandwich the muffler 13d from both sides of the housing 11, as indicated by a dotted line in FIG.
That is, in order to further improve the shielding effect, a substantially rectangular heat shielding plate 28 is provided so as to be sandwiched from both sides of the housing 11, and a part of the heat shielding plate 28 is improved to improve the obtained heat shielding effect. And the second exhaust guide plate 21d.
The reason for this is that by providing the heat shield plate 28 in this way, the exhaust gas from the muffler 13d does not scatter on both sides, but linearly moves through the first exhaust path C1 and the second exhaust path C2. This is because it is smoothly guided to the merging area 25.

11. Merging area As shown in FIGS. 2A and 2B, the merging area 25 is a predetermined virtual area shown by a dotted line in the drawing, but has a first exhaust path C1 and a second exhaust path C2. Is preferably located approximately downstream of each.
That is, the merging region 25 merges two types of airflows individually passing through the first exhaust path C1 and the second exhaust path C2, that is, a part of the outside air and the exhaust from the muffler 13d, This is the area to be mixed.
In the case of this embodiment, one corner region of the housing 11, which is constituted by the ceiling surface and one side surface, is set as the merging region 25.

12. Exhaust Port As shown in FIGS. 2A and 2B, the exhaust port 27 is located in a region opposite to the first exhaust path C <b> 1 and the second exhaust path C <b> 2 in the merging area 25, that is, in the housing 11. It is preferable that one side surface is provided on the ceiling surface side.
Therefore, the exhaust port 27 is constituted by an opening in which a part of one side surface of the housing 11 is cut out, and a metal mesh fixed to the opening and equipped with a filter.
Further, to ensure safety, a hood 27a is provided outside the side surface of the housing 11 where the exhaust port 27 is provided, for guiding the exhaust air downward in the vertical direction and preventing intrusion of rain or the like from the outside.

13. Third inlet and second exhaust port (third intake path and third exhaust path)
Further, as shown in FIG. 2, outside air is taken in from the third inlet 31 and cools the generator 15, and then the outside air is exhausted to the outside.
Therefore, the third inlet 31 is practically directly connected to the generator 15, and is configured to effectively take in outside air.

As shown in FIG. 2, the second exhaust port 33 is, in effect, directly connected to the generator 15, and serves to efficiently discharge air after cooling the generator 15 to the outside air. It is.
In the case of this embodiment, the third inlet 31 is provided on the bottom surface of the housing 11 and below the generator 15.
The second exhaust port 33 is provided on a side surface of the housing 11 and at a portion facing the generator 15. The second exhaust port 33 may have, for example, the same configuration as the first intake port 17 provided near the air-cooled engine 13.

14． Control Unit As shown in FIG. 2, the control unit 35 electrically controls the operation of the combined power generation device 10, and is generally a semiconductor central processing element (CPU).
Specifically, various safety monitoring sensors such as an air-cooled engine 13, a generator 15, and a fan 19 perform predetermined operations, and an LP gas leak sensor, a temperature sensor, and the like, which are part of the normal operation. (Not shown).
Therefore, it is preferable that the control unit 35 is configured by an electric circuit including a sequencer or a microcomputer, for example, and is connected to the air-cooled engine 13, the generator 15, the fan 19, and various sensors.

Although not shown, it is preferable to provide a temperature sensor, a wind sensor, a pressure sensor, a power generation sensor, and a vibration sensor at a plurality of locations of the combined power generation device 10 and control the values to a desired range by the control unit 35. .
If the combined power generator 10 including the air-cooled engine 13 and the generator 15 operates without incomplete combustion or the like for at least 72 hours under data control of a temperature sensor or the like, the control unit 35 Thus, it can be said that the combined power generation device 10 is sufficiently controlled.
In addition, for simplicity, a temperature sensor, a wind sensor, a pressure sensor, and a power generation amount sensor are provided at a plurality of locations of the combined power generation device 10 and the control unit 35 temporarily does not control all of the values to a desired range. However, if the combined power generation device 10 including the air-cooled engine 13 and the generator 15 operates without causing incomplete combustion or the like for at least 72 hours, the control unit 35 controls the combined power generation device 10. It can be said that.

15. Block Diagram As shown in FIG. 4, a block diagram of the combined power generation device 10 of the first embodiment is shown.
As can be easily understood from the block diagram, the combined power generation device 10 includes an LP gas (LP gas cylinder) 41 as fuel for the air-cooled engine 13, a housing 11, a control unit 35 therein, and a cooling unit for the air-cooled engine 13. And a second intake path A2 for taking outside air into the air cleaner 13a and the carburetor 13b.

  Further, a first exhaust path C1 for mixing the exhaust gas discharged from the muffler 13d and the air cooled by the air-cooled engine 13 and leading the mixed gas to the merge area 25, a part of the exhaust gas discharged from the muffler 13d is merged with the merge area. 25, a second exhaust path C2, a generator 15 supported by the air-cooled engine 13, a second exhaust port 33, and the like.

Therefore, the air after cooling the air-cooled engine 13 and the exhaust discharged from the muffler 13d of the air-cooled engine 13 are separated by at least the first exhaust guide plate 21c and the second exhaust guide plate 21d. The air-cooled engine 13 can be operated stably by converging it at the place, mixing it, and exhausting it, so that the generator 15 can generate electricity effectively.
More specifically, a small-sized, simple-structure combined power generation system in which a generator 15 is operated by an air-cooled engine 13 derived from a fuel gas such as LP gas, so that electricity can be supplied with confidence even during a power failure. It is possible to provide an apparatus, and a stable airflow control method thereof.

16. Temperature Change FIG. 5 shows a temperature profile showing a distance from the muffler 13d and a temperature change obtained by measuring an exhaust gas temperature.
Although not particularly shown, the air immediately after combustion in the combustion chamber 13c has a high temperature of about 700 ° C., and is cooled in the muffler 13d by about 100 ° C. every 1 cm.
However, as understood from the temperature profile in this figure, the temperature is still high at about 300 ° C. near the exit of the muffler 13d.
However, according to the combined power generation device 10 of the first embodiment, it is cooled smoothly, and a temperature of 50 ° C. or less can be achieved at a position 60 cm away from the vicinity of the exit of the muffler 13d.
That is, it is understood that the exhaust gas temperature deflected by the muffler 13d decreases logarithmically.
Therefore, although not shown, a temperature sensor is provided near the outlet of the muffler 13d and every 10 cm therefrom, and the temperature sensor is controlled to a desired temperature range by the control unit 35, so that the operation of the combined power generation device 10 of the first embodiment is improved. It can be managed with high accuracy.

[Second embodiment]
A second embodiment of the present invention is directed to an air-cooled engine having an air cleaner, a carburetor, a combustion chamber, and a muffler, a generator operating by predetermined combustion in a combustion chamber of the air-cooled engine, and taking in outside air from an inlet. , A fan for leading to an air-cooled engine, and a housing for accommodating these structural components therein, the method comprising: Is an airflow control method.
(Step 1)
A step of introducing outside air taken in from a first intake as an intake by a fan as air for cooling the air-cooled engine via a first intake path to the air-cooled engine (step 2)
A step of guiding outside air taken in from a second intake different from the intake to the air cleaner of the air-cooled engine via a second intake path (step 3)
In a carburetor of an air-cooled engine, air purified by an air cleaner and LP gas are mixed, transported to a combustion chamber, ignited by a spark plug, driven by a piston, and further driven by the piston. Step of generating electricity by rotating the generator through the connected predetermined shaft (Step 4)
A first exhaust guide plate and a second exhaust guide plate are provided from below along the vertical direction, and a first exhaust guide plate and a second exhaust guide plate are formed between the first exhaust guide plate and the second exhaust guide plate. The air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine are guided to the confluence area via the exhaust path of No. 1 and at least the exhaust gas present above the air cleaner of the air-cooled engine Step of leading a part to the junction area via the second exhaust path (Step 5)
The air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine via the first exhaust path, and the air cleaner of the air-cooled engine via the second exhaust path. A process in which at least a part of the exhaust gas present above is merged in a merging region, and discharged to the outside while mixing. Hereinafter, a second embodiment of the combined cycle power generation device of the present invention will be specifically described with reference to FIG. Will be described.

1. Step 1
Step 1 corresponds to step 1 (sometimes referred to as S1) in FIG. 6, and cools the air-cooled engine 13 through the first intake path through the outside air taken in from the first intake 17. This is a step of guiding air for use around the air-cooled engine 13.
That is, part of the outside air that has proceeded to the second intake path A2 side is taken into the air cleaner 13a from the second intake port 13g as the air intake port for the air cleaner, is purified there, and then is taken into the carburetor 13b. And contributes to the mixing of LP gas and air.
More specifically, when the combined power generation device 10 is activated, the air-cooled engine 13, the generator 15, and the fan 19 are activated in response thereto.

In response to the rotation of the fan 19, outside air is guided from the first intake 17 to the air-cooled engine 13 as cooling air, while part of the outside air is guided to the first intake path A1. Will be crushed.
Therefore, the outside air that has proceeded to the surroundings of the air-cooled engine 13 can effectively cool the air-cooled engine 13 when passing through the gap between the air-cooled engine 13 and the engine cover 13f.

In consideration of the fact that an airflow having a high temperature is likely to move upward in the vertical direction, in the combined power generation device 10, the first intake path A1, the second intake path A2, the merge area 25, the exhaust port 27, and the like. Is basically arranged along the vertical direction.
Therefore, the ease with which the airflow moves upward in the vertical direction also contributes a little to the effect of the present invention.

2. Step 2
Step 2 corresponds to step 2 (sometimes referred to as S2) in FIG. 6, but a part of the outside air taken in from the first intake 17 is arranged in the vertical direction for the first intake air. In this step, the air is divided by the guide plate 22a and guided to the air cleaner 13a of the air-cooled engine 13 via the first intake path A1.
That is, it is preferable to provide step 2 and filter the intake air by a filter function of the air cleaner 13a to remove contaminants and the like contained in the outside air.
Then, in the next step, a predetermined horsepower can be obtained by mixing the air thus purified with the LP gas and burning the mixed gas in the combustion chamber 13c.

3. Step 3
Step 3 corresponds to step 3 (sometimes referred to as S3) in FIG. 6, but as shown in FIG. 2A, the carburetor 13b of the air-cooled engine 13 is cleaned by the air cleaner 13a. This is a process in which air and LP gas are mixed, transported to the combustion chamber 13c, and then ignited by a spark plug (not shown) to make the piston reciprocate as the air-cooled engine 13.

  That is, the air purified in the step 2 and the LP gas are mixed, and further, they are compressed to a predetermined compression ratio. By burning it in the combustion chamber 13c, a predetermined piston reciprocating motion is obtained. Further, the rotational motion is changed by a camshaft or the like as a transmission mechanism. Finally, the connected generator 15 can generate predetermined electricity.

4. Step 4
Step 4 corresponds to a combination of step 4 in FIG. 6 (may be referred to as S4) and step 5 in FIG. 6 (may be referred to as S5). As shown in FIG. This is a step of guiding the exhaust gas discharged from the muffler 13d of the air-cooled engine 13 and the air after cooling the air-cooled engine 13 to the merge area 25, and a part of the exhaust gas discharged from the muffler 13d. This is a step of preventing the air from reaching the air cleaner 13a and guiding the air to the junction area 25 by the ejector effect of the first exhaust path C1.
More specifically, along the surface of the first exhaust guide plate 21c and the surface (slope) of the second exhaust guide plate 21d, air is introduced into the merge area 25 via the first exhaust path C1. This is the guiding step.

5. Step 5
Step 5 corresponds to step 6 (sometimes referred to as S6) in FIG. 6. As shown in FIG. 2A, the exhaust of the muffler 13 d and the cooled air are subjected to a first step. The end direction of each of the exhaust guide plate 21c and the second exhaust guide plate 21d is directed to the position direction, that is, the first exhaust path C1, the second exhaust path C2, and the like, to reach the junction area 25. This is a step of merging, mixing, lowering the temperature to a predetermined temperature, and then discharging it to the outside.

More specifically, while mixing the air after cooling the air-cooled engine 13 and the exhaust gas discharged from the muffler 13d of the air-cooled engine 13 in the confluence region 25, for example, 100 ° C. or lower, more preferably In this step, the temperature is reduced to 80 ° C. or lower, more preferably 60 ° C. or lower, and then discharged to the outside from the exhaust port 27.
Therefore, step 5 is to prevent the exhaust gas discharged from the muffler 13d and the cooled air from reaching at least the air cleaner 13a, and to mix the exhaust gas with the first exhaust guide plate 21c and the second exhaust gas. This is a step of efficiently guiding the liquid to the merging area 25 along the guide plate 21d and discharging the gas to the outside from the exhaust port 27.
Since the exhaust gas discharged from the muffler 13d has the momentum of the exhaust gas itself and has a high temperature of 500 ° C. or more, the exhaust gas passes through the first exhaust passage C1 and the second exhaust passage C2 by the ascending force. Go out of the combined power generation device 10.

As described above, according to the combined power generation device 10 and the airflow control method thereof, the air for cooling the engine through the first intake path A1 is supplied to the air-cooled engine 13 by the fan 19 and the second air. The air that is drawn into the air cleaner 13a through the intake path A2, the exhaust gas that passes through the first exhaust path C1, and the air that passes through the second exhaust path C2 is discharged by the ejector effect of the first exhaust path C1. The balance with the displacement can be controlled and stabilized.
Therefore, according to the combined power generation device 10 and the airflow control method thereof, the outside air is taken into the housing 11 for a relatively long time (at least 72 hours in consideration of recovery from the power outage time) and the outside of the housing 11 And exhaust to the air can be continued.

6. Other Steps (1) Operation Confirmation Step 1
It is preferable that the control unit 35 periodically includes a step of generating and transmitting a pseudo signal and confirming the operation of the combined power generation device 10 so that the steps 1 to 6 operate normally.
That is, at a frequency of once a week or once every two weeks, by a predetermined operation, even if the commercially available electricity is not actually in a power outage state, it is supposedly set to a power outage state, and the steps 1 to 6 are performed. It is preferable to confirm that the operation is normal.

(2) Operation check step 2
Further, it is preferable that a predetermined temperature sensor is provided at a predetermined location during the operation of the combined cycle power generation device, the temperature of the temperature sensor is continuously monitored, and the operation of the combined cycle power generation device is controlled accordingly.
For example, as shown in FIG. 2A, it is possible to continuously monitor at least the temperature of exhaust gas, which is present above the air cleaner 13a of the air-cooled engine 13, by a temperature sensor 11a provided on the back of the top plate of the housing 11. preferable.
The reason is that a part of the exhaust gas of the air-cooled engine leaks to the side of the air cleaner, stays there, and heats the air-cooled engine itself, including the air cleaner of the air-cooled engine, and the cooling effect is significantly reduced. This is because there is a danger.
Therefore, it is possible to continuously monitor at least the temperature of the exhaust present above the air cleaner of the air-cooled engine by using the temperature sensor provided on the back of the top plate of the above-described housing to confirm that the temperature is equal to or lower than the predetermined temperature. It is important.

In addition, as shown in FIG. 2A, it is preferable to attach a temperature sensor 11b around the exhaust port 27 of the housing 11 to continuously monitor the temperature.
The reason for this is that, as a result of the measurement, if the temperature around the exhaust port of the housing exceeds the threshold value, it is estimated that the temperature of the junction area of the housing is also higher than the desired temperature range.
Therefore, the cause may be incomplete combustion of the air-cooled engine, abnormal combustion, or the like. Therefore, it can be determined that it is necessary to stop the operation of the combined power generation device and improve the airflow control method.

(3) Earthquake Confirmation Step In addition, assuming that an earthquake will occur periodically, a predetermined seismic wave is sent, and the operation of the combined power generation device 10 is confirmed so that the steps 1 to 6 operate normally. Preferably, a step is included.
In other words, even if an earthquake has actually occurred and the commercial electricity is not in a power outage state, pseudo earthquake data is input, the data is sensed and a power outage state is detected, and steps 1 to 6 operate normally. It is preferable to confirm that

(4) Base Forming Step In order to further enhance the performance of the combined power generation device 10, it is preferable to include a step of providing a strong base for placing the combined power generation device 10.
For example, it is preferable to prepare 100 kg of cement, 100 kg of sand, and 100 kg of water to form a mortar base.
Then, it is preferable that the combined power generation device 10 be horizontally placed and fixedly attached to a predetermined place of the formed mortar base using a fixing tool such as an anchor bolt.

(5) Vibration Isolation Device Step In order to further reduce the noise and improve the performance of the combined power generation device 10, it is preferable to include a step of providing a predetermined vibration isolation device at a lower portion or a bottom portion of the combined power generation device 10.
For example, by using a vibration-isolating rubber as such a vibration isolator, it is possible to reduce the noise of the combined power generation device 10 and to improve the sensitivity of the combined power generation device 10 by removing vibration noise. it can.

As is clear from the above description, the combined power generation device of the present invention is a combined power generation device that is operated by an air-cooled engine and has a simple structure and can ensure safety, soundproofing, cooling, and intake. .
Therefore, it is a useful power generator in various situations that require a combined power generator, such as a power outage caused by a natural disaster such as an earthquake, a typhoon, or heavy rain, or a power outage caused by an artificial accident, etc. But it is expected that it can be used.

10: Combined power generator 11: Housing 11a, 11b: Temperature sensor 13: Air-cooled engine 13a: Air cleaner 13b: Carburetor 13c: Combustion chamber 13d: Muffler 13e: Inlet (first inlet)
13g: second intake port 15: generator 17: intake (first intake) 19: fan (sirocco fan)
A1: First intake path A2: Second intake path E3: Third intake path C1: First exhaust path C2: Second exhaust path F3: Third exhaust path 22a: First intake guide Plate 22b: Second intake guide plate 21c: First exhaust guide plate 21d: Second exhaust guide plate 25: Merging area 27: Exhaust port 27a: Exhaust hood 31: Third inlet 33: No. 2 exhaust port 35: control unit 41: LP gas cylinder

Claims (6)

An air cleaner, a carburetor, a combustion chamber, and an air-cooled engine including a muffler, a generator that operates by predetermined combustion in a combustion chamber of the air-cooled engine, a fan that takes in outside air from an inlet and guides the air-cooled engine, And a housing accommodating these structural components therein; and
A first intake path for guiding outside air taken in from the first intake as the intake by the fan as cooling air for the air-cooled engine;
A second intake path for guiding outside air taken from a second intake as another intake to the air cleaner of the air-cooled engine;
In order to guide the air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine to a merging region, the first exhaust guide plate and the second exhaust guide are arranged vertically from below. A first exhaust passage formed between the first exhaust guide plate and the second exhaust guide plate, and a first exhaust passage formed between the first exhaust guide plate and the second exhaust guide plate.
A second exhaust path that is present above the air cleaner of the air-cooled engine and guides at least a part of the exhaust to the merging region;
The air after cooling the air-cooled engine, the exhaust air discharged from the muffler of the air-cooled engine, and the second exhaust gas, which are combined via the first exhaust path and merged in the merge area. made via a route, present above the air cleaner of the air-cooled engine, together at least a portion of the exhaust, have a, a discharge port for discharging to the outside of the housing,
There is a vertical wall between the air-cooled engine and the first intake path and the second intake path, and a part of the vertical wall for guiding outside air by the fan. A first intake port and a second intake port communicating with the air cleaner,
A hood-shaped guide plate that opens downward along the vertical direction is provided on the outside air inlet side of the first air inlet, and a hood-shaped guide plate that opens downward along the vertical direction is provided on the outside air inlet side of the second air inlet. And a hood-shaped guide plate opened upward .   In addition to the first intake and the second intake, a third intake for taking in outside air for cooling the generator is provided in a part of the housing. The combined power generation device according to claim 1. If the first exhaust guide plates, viewed from the side, according to claim 1 from the muffler of the air-cooled engine, toward the joining region, characterized in that it upward inclined obliquely rightward Or the combined power generation device according to 2. When the second exhaust guide plate is viewed from the side, from the upper side of the muffler of the air-cooled engine, toward the top plate of the housing, at a predetermined interval, diagonally to the right. A first inclined portion inclined upward, a horizontal portion extending in a horizontal direction with a predetermined space therebetween, and a top surface of the housing, toward the merging area with a predetermined space therebetween. The combined power generation device according to any one of claims 1 to 3 , wherein the power generation device is inclined downward in a diagonal right direction. The combined power generator according to any one of claims 1 to 4 , wherein the engine is an engine using LP gas as fuel. An air cleaner, a carburetor, a combustion chamber, and an air-cooled engine including a muffler, a generator that operates by predetermined combustion in a combustion chamber of the air-cooled engine, a fan that takes in outside air from an inlet and guides the air-cooled engine, possess a housing that accommodates these structural components therein, and a said air-cooled engine, a first intake path and below the second intake path below, during each a vertical wall, the A first intake port for guiding outside air by the fan and a second intake port communicating with the air cleaner are provided on a part of the vertical wall, respectively, and the outside air of the first intake port is provided. A hood-shaped guide plate is provided on the inlet side and opened downward along the vertical direction, and a hood-shaped guide plate opened upward along the vertical direction on the outside air inlet side of the second intake port. Provided That a airflow control method for combined cycle power generation system, the airflow control method for combined cycle power generation system which comprises the following steps 1-5.
(Step 1)
Guiding the outside air taken in from the first intake as the intake by the fan via the first intake path to the air-cooled engine as cooling air for the air-cooled engine (step 2)
A step of guiding outside air taken in from a second intake different from the intake to the air cleaner of the air-cooled engine via a second intake path (step 3)
In the carburetor of the air-cooled engine, air purified by the air cleaner and LP gas are mixed, and after being transported to the combustion chamber, ignited by a spark plug and driven by a piston. Is a step of generating power by rotating the generator through a predetermined shaft connected to the piston (step 4).
A first exhaust guide plate and a second exhaust guide plate are provided from below along the vertical direction, and a first exhaust guide plate and a second exhaust guide plate are formed between the first exhaust guide plate and the second exhaust guide plate. The air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine are guided to a confluence area via the exhaust path of the first and the second exhaust path, Guiding at least a part of the exhaust present above the air cleaner of the air-cooled engine to the merge area (step 5)
The first exhaust path, the air after cooling the air-cooled engine and the exhaust discharged from the muffler of the air-cooled engine, and the second exhaust path, A step of combining at least a part of the exhaust gas existing above the air cleaner of the air-cooled engine in the merge area and discharging the mixed gas to the outside while mixing.

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