JP6863722B2 - Enclosure for power generation unit - Google Patents

Description

The present disclosure relates to a power generation unit enclosure that houses a power generation unit consisting of a generator and a power generation source that drives the generator.

A power generation unit composed of a generator and a power generation source for driving the generator is housed inside a housing called a power generation unit enclosure, and is mainly used outdoors. The enclosure for the power generation unit is configured to supply the intake air sucked from the outside to the power generation unit, but if the intake air contains rainwater or dust, the power generation unit may be adversely affected. For this reason, the enclosure for the power generation unit has been devised in various ways to remove rainwater and dust contained in the intake air sucked from the outside.

For example, Patent Document 1 discloses a technique for preventing rainwater from being sucked into an intake duct by providing an armor door formed on a side surface of an enclosure. Further, in Patent Document 2, the intake intake is configured to open downward to prevent rainwater from being sucked into the intake duct, and a mesh member provided at the intake intake. Disclosed is a technique for preventing dust from being sucked into the intake duct by removing the dust from the intake air.

Jikkai Sho 64-27441 Japanese Unexamined Patent Publication No. 2005-188453

However, the techniques described in Patent Document 1 and Patent Document 2 described above are insufficient in the effect of preventing the inhalation of rainwater and the effect of removing dust from the intake air.

At least some embodiments of the present invention have been made in view of the above-mentioned prior art, and provide an enclosure for a power generation unit capable of more removing rainwater and dust contained in the intake air supplied to the power generation unit. The purpose.

(1) The power generation unit enclosure according to at least one embodiment of the present invention is a power generation unit enclosure that houses a power generation unit including a generator and a power generation source that drives the generator, and is the generator and the power generation unit. A main body portion having a power chamber inside which can accommodate a power generation source, and an intake duct portion having an intake passage inside where intake air supplied to the power chamber flows, with respect to the outside at the entrance of the intake passage. An intake duct portion having an intake inlet portion that opens downward and an intake outlet portion that opens downward or sideways with respect to the power chamber at the outlet of the intake passage, and a louver provided at the intake inlet portion. It is provided with a louver having a plurality of long wing plates having a longitudinal direction while being attached to each other at intervals in a direction away from the power chamber in a plan view, and the plurality of wing plates are at the upstream end. It inclines toward the downstream end in a direction away from the power chamber.

According to the configuration of (1) above, the intake air sucked into the intake duct portion from the intake intake portion that opens downward to the outside at the inlet of the intake passage passes through the louver provided in the intake intake portion. Then, the intake air that has passed through the louver is guided in the intake duct portion in the direction away from the power chamber by a plurality of blade plates that incline in the direction away from the power chamber from the upstream end to the downstream end. Therefore, the intake air sucked into the intake duct portion is made to collide with the wall surface of the intake duct portion on the side far from the power chamber so as to flow around the outside of the intake passage (the side far from the power chamber in the intake passage). It can be supplied to the power room. Therefore, even if the intake air sucked into the intake duct portion from the intake intake portion that opens downward contains rainwater or dust, the intake air should collide with the wall surface of the intake duct portion on the side far from the power chamber. Therefore, rainwater and dust contained in the intake air supplied to the power chamber can be removed.

Further, according to the configuration (1) above, the noise leaking from the power chamber of the power generation unit enclosure to the outside can be suppressed by the plurality of louver blades provided at the intake intake portion of the intake passage. ..

(2) In some embodiments, in the configuration described in (1) above, a filter device provided on the downstream side of the louver at the intake intake portion is further provided, and the filter device has one end from the other end. A mesh-shaped first flat plate member and a mesh-shaped second flat plate member that are arranged so as to be located on the upstream side of the intake passage so as to be inclined with respect to the cross-sectional direction of the intake passage. The intake passage so that one end of the second flat plate member is connected to the other end of the first flat plate member and the one end of the second flat plate member is located downstream of the other end of the intake passage. It has a mesh-shaped second flat plate member which is arranged so as to be inclined with respect to the cross-sectional direction of the above.

According to the configuration of (2) above, in the filter device as described above, since the first flat plate member and the second flat plate member are arranged so as to be inclined with respect to the cross-sectional direction of the intake passage, the same intake passage thereof. Compared with the conventional filter device in which the mesh-shaped flat plate member is arranged along the cross-sectional direction of the above, the cross-sectional area through which the intake air passes is large. Therefore, since the pressure loss with respect to the intake air becomes small, the intake duct portion can be made compact by that amount.

Further, according to the configuration of (2) above, since the filter device is provided on the downstream side of the louver, the louver is installed as compared with the case where the filter device is provided on the upstream side of the louver (the configuration of (3) below). It can be installed near the entrance of the intake passage. Therefore, the intake air can be made to collide with a lower position on the wall surface of the intake duct portion on the side far from the power chamber, and rainwater and dust contained in the intake air can be further removed.

(3) In some embodiments, in the configuration described in (1) above, a filter device provided on the upstream side of the louver at the intake intake portion is further provided, and the filter device has one end from the other end. Also, a mesh-shaped first flat plate member and a mesh-shaped second flat plate member which are arranged so as to be inclined so as to be located on the downstream side of the intake passage, and the first flat plate member is located at the other end of the first flat plate member. A mesh-shaped second flat plate member in which one end of the two flat plate members is connected and the one end of the second flat plate member is inclined so as to be located on the upstream side of the intake passage from the other end. Has.

According to the configuration of (3) above, in the filter device as described above, since the first flat plate member and the second flat plate member are arranged so as to be inclined with respect to the cross-sectional direction of the intake passage, the same intake passage thereof. Compared with the conventional filter device in which the mesh-shaped flat plate member is arranged along the cross-sectional direction of the above, the cross-sectional area through which the intake air passes is large. Therefore, since the pressure loss with respect to the intake air becomes small, the intake duct portion can be made compact by that amount.

Further, according to the configuration of (3) above, since the filter device is provided on the upstream side of the louver, the louver is provided as compared with the case where the filter device is provided on the downstream side of the louver (the configuration of (2) above). The filter device can be removed from the power generation unit enclosure without any obstacles. In addition, since the filter device can be directly accessed, the filter device can be easily cleaned. Therefore, the cleanability of the filter device can be improved.

(4) In some embodiments, in the configuration according to (2) or (3) above, the louver further includes a frame member that supports each of the plurality of blades in the frame, and the first. The louver and the filter device are integrated by connecting the one end of the flat plate member and the other end of the second flat plate member to the frame member, respectively.

According to the configuration of (4) above, the louver and the filter device are integrated. Therefore, it becomes easy to install the louver and the filter device at the intake intake portion. Further, for example, the louver can be easily repaired or replaced due to deterioration over time, and maintainability can be improved.

(5) In some embodiments, in the configuration according to any one of (1) to (4) above, at least one of the plurality of wing plates has a folded portion provided at the downstream end. Have.

According to the configuration of the above (5), since the wing plate has the folded-back portion, it is possible to prevent rainwater and dust contained in the intake air colliding with the wing plate from being sucked into the intake duct portion.

(6) In some embodiments, in the configuration according to any one of (1) to (5) above, the intake intake portion is visually recognized along the longitudinal direction of the feather plate. The distance between the downstream end of the farthest blade plate located at the farthest position from the power chamber among the plurality of blade plates and the wall surface of the intake intake portion on the side farthest from the power chamber is L1, the plurality of blade plates. When the distance between the downstream ends of the pair of adjacent blades is L2, L1 ≧ L2.

Of the intake air that passes through the intake intake, the intake air that passes farther from the power chamber is different from the intake air that passes closer to the power chamber, and is far from the power chamber even if it is not guided by the blade plate. It can collide with the wall surface of the intake duct on the side. According to the configuration of (6) above, the distance L1 between the downstream end of the farthest blade plate and the wall surface on the side far from the power chamber of the intake intake portion is in a pair of adjacent blade plates among the plurality of blade plates. The distance between the downstream ends is larger than L2. Therefore, it is possible to increase the intake amount of the intake air sucked into the intake duct portion while guiding the intake air in the intake duct portion toward the wall surface of the intake duct portion on the side far from the power chamber.

(7) In some embodiments, in the configuration according to any one of (1) to (6) above, the farthest wing plate located at the position farthest from the power chamber among the plurality of wing plates is , The length from the upstream end to the downstream end is configured to be the shortest.

According to the configuration of (7) above, the farthest blade is configured so that the length from the upstream end to the downstream end is the shortest, so that the intake air that has passed through the intake intake portion can be taken in by a plurality of blades. It is possible to increase the amount of intake air sucked into the intake duct portion while guiding the inside of the intake duct portion toward the direction away from the power chamber by the plate.

(8) In some embodiments, in the configuration according to any one of (1) to (7) above, the intake duct portion is connected to the intake intake portion and the intake duct portion is connected to the intake duct portion. In a cross-sectional view visually recognized along the longitudinal direction of the wing plate, it further has a vertical portion having a vertical wall extending in the vertical direction, and is located closest to the power chamber among the plurality of wing plates. The extension line that recently extends from the upstream end of the wing plate through the downstream end is configured to intersect the vertical wall.

According to the configuration of (8) above, the intake air recently guided into the intake duct portion by the blade plate located closest to the power chamber can collide with the vertical wall so as to flow around the outside of the intake passage. it can. As a result, rainwater and dust contained in the intake air recently guided by the blade can be removed by colliding with the wall surface of the intake duct portion on the side far from the power chamber.

(9) In some embodiments, in the configuration according to any one of (1) to (8) above, in the intake passage along the longitudinal direction of the feather plate on the downstream side of the louver. It is further provided with a partition plate that extends.

For example, if the inlet width of the intake intake portion (the width in the direction away from the power chamber in the cross-sectional view viewed along the longitudinal direction of the blade plate) is wide, or if the suction force of the intake air from the power chamber is large, the above ( Even if the louver according to any one of 1) to (8) is provided, in particular, the intake air sucked into the intake duct portion from the side near the power chamber is sent to the wall surface of the intake duct portion on the side far from the power chamber. It may be difficult to make them collide. According to the configuration of (9) above, a partition plate extending in the intake passage along the longitudinal direction of the blade plate is further provided on the downstream side of the louver. Therefore, even if the intake air is sucked into the intake duct portion from the side close to the power chamber, rainwater and dust contained in the intake air supplied to the power chamber can be removed by colliding the intake air with the partition plate.

According to at least one embodiment of the present invention, it is possible to provide an enclosure for a power generation unit capable of further removing rainwater and dust contained in the intake air supplied to the power generation unit.

It is a schematic side view of the enclosure for a power generation unit which concerns on one Embodiment of this invention. It is an enlarged view for demonstrating the intake duct part which concerns on one Embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is a top view for demonstrating the filter apparatus which concerns on one Embodiment of this invention. It is a figure which compared the filter apparatus which concerns on one Embodiment of this invention, and the conventional filter apparatus. It is an enlarged view for demonstrating the intake duct part which concerns on one Embodiment of this invention. It is an enlarged view for demonstrating the intake duct part which concerns on one Embodiment of this invention. It is an enlarged view for demonstrating the intake duct part which concerns on one Embodiment of this invention. It is a schematic front view of the enclosure for a power generation unit which concerns on one Embodiment of this invention.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention to this, but are merely explanatory examples. Absent.
For example, expressions that represent relative or absolute arrangements such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial" are exact. Not only does it represent such an arrangement, but it also represents a state of relative displacement with tolerances or angles and distances to the extent that the same function can be obtained.
Further, for example, an expression representing a shape such as a quadrangular shape or a cylindrical shape not only represents a shape such as a quadrangular shape or a cylindrical shape in a geometrically strict sense, but also includes a concavo-convex portion or a concavo-convex portion within a range in which the same effect can be obtained. The shape including the chamfered portion and the like shall also be represented.
On the other hand, the expressions "equipped", "equipped", "equipped", "included", or "have" one component are not exclusive expressions that exclude the existence of other components.

FIG. 1 is a schematic side view of an enclosure for a power generation unit according to an embodiment of the present invention. 2 and 6 to 8 are enlarged views for explaining an intake duct portion according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a plan view for explaining a filter device according to an embodiment of the present invention. FIG. 5 is a diagram comparing a filter device according to an embodiment of the present invention with a conventional filter device. FIG. 5A shows a case where the filter device is located on the downstream side of the louver. FIG. 5B shows a case where the filter device is located on the upstream side of the louver. FIG. 9 is a schematic view of an enclosure for a power generation unit according to an embodiment of the present invention. FIG. 9A is a plan view of the power generation unit enclosure. FIG. 9B is a front view of the power generation unit enclosure.

As shown in FIGS. 1 and 9, the power generation unit enclosure 1 according to the embodiment of the present invention houses a power generation unit 7 including a generator 8 and a power generation source 9 for driving the generator 8. Is. The power generation source 9 is, for example, an engine that drives a generator 8 by burning fuel. In some embodiments, the power source 9 may be a turbine such as a gas turbine.

Such a power generation unit enclosure 1 has a main body 2 having a power chamber 6 capable of accommodating a generator 8 and a power generation source 9 inside, and an intake passage 10 through which intake air supplied to the power chamber 6 flows. It includes an intake duct portion 3 having the intake duct portion 3 and a louver 20 provided at the intake intake inlet portion 12 that opens downward with respect to the outside at the inlet 10a of the intake passage 10.

In the illustrated embodiment, the power generation unit enclosure 1 further includes an exhaust duct portion 4 and a muffler 5. The exhaust duct portion 4 has an exhaust passage 11 inside through which the exhaust gas discharged from the power chamber 6 flows, and is arranged so as to face the intake duct portion 3 with the main body portion 2 interposed therebetween. The muffler 5 is arranged above the main body 2. In the case of such a configuration, the intake air supplied to the power chamber 6 may be discharged to the outside through the exhaust duct portion 4 after cooling the engine (power generation source 9), or may be discharged to the outside by the engine. It may be discharged to the outside through the muffler duct portion 15 after being burned together with the fuel.

As shown in FIGS. 1 and 9, the intake duct portion 3 is connected to the power chamber 6 at the intake inlet portion 12 that opens downward with respect to the outside at the inlet 10a of the intake passage 10 and at the outlet 10b of the intake passage 10. It has an intake / discharge port 14 that opens downward. In the embodiment shown in FIG. 1, in the intake duct portion 3, the inlet 10a of the intake passage 10 is on the side opposite to the power chamber 6 side with respect to the end surface (front side end surface 2a) of the main body 2 on the intake duct portion 3 side. It is configured to be placed at the position of. The intake / discharge port 14 formed above the main body 2 opens downward with respect to the power chamber 6 at the outlet 10b of the intake passage 10. In some embodiments, the intake / exhaust port 14 may be formed on the front end surface 2a of the main body 2 and may be laterally open to the power chamber 6. In this case, the intake duct portion 3 may have a substantially rectangular shape.

Further, as shown in FIGS. 2 and 6 to 8, the intake duct portion 3 has a vertical portion 16 and a horizontal portion 17. The vertical portion 16 is connected to the intake intake portion 12, and has a vertical wall 18 extending in the vertical direction in a cross-sectional view in which the intake duct portion 3 is visually recognized along the longitudinal direction of the blade plate 22 described later. Then, in the illustrated embodiment, such a vertical wall 18 includes an inner vertical wall 18A (18) on the side closer to the power chamber 6 and an outer vertical wall 18B (18) on the side farther from the power chamber 6. The horizontal portion 17 is connected to the upper end 18Ba of the outer vertical wall 18B, and extends toward the power chamber 6 side in a cross-sectional view in which the intake duct portion 3 is visually recognized along the longitudinal direction of the blade plate 22 described later. It has a wall 19. The intake duct portion 3 has a rectangular cross section.

Further, in some embodiments, such an intake duct portion 3 may have a circular cross section. Further, in some embodiments, sound absorbing materials such as glass fiber and foam material may be installed on the inner surfaces of the vertical portion 16 and the horizontal portion 17.

As shown in FIG. 3, the louvers 20 are attached at intervals from each other in the direction away from the power chamber 6 (direction of arrow a) in a plan view, and have a plurality of long wing plates 22 having a longitudinal direction. Then, as shown in FIGS. 2 and 6 to 8, the plurality of blade plates 22 are inclined in a direction away from the power chamber 6 from the upstream end 22a to the downstream end 22b in the intake flow direction.

According to the power generation unit enclosure 1 according to the embodiment of the present invention, the intake air sucked into the intake duct portion 3 from the intake intake inlet portion 12 that opens downward with respect to the outside at the inlet 10a of the intake passage 10. Passes through the louver 20 provided at the intake intake portion 12. Then, the intake air that has passed through the louver 20 is directed away from the power chamber 6 in the intake duct portion 3 by the plurality of blade plates 22 that incline in the direction away from the power chamber 6 from the upstream end 22a toward the downstream end 22b. Is guided. Therefore, the intake air sucked into the intake duct portion 3 collides with the wall surface of the intake duct portion 3 on the side far from the power chamber 6 (the inner surface of the outer vertical wall 18B of the vertical portion 16), and the intake passage 10 It can be supplied to the power chamber 6 so as to flow around the outside (the side of the intake passage 10 far from the power chamber 6). Therefore, even if the intake air sucked into the intake duct portion 3 from the intake intake inlet portion 12 that opens downward contains rainwater or dust, the intake air is made to collide with the inner surface of the outer vertical wall 18B to generate power. Rainwater and dust contained in the intake air supplied to the chamber 6 can be removed.

Further, according to the power generation unit enclosure 1 according to the embodiment of the present invention, the power generation unit enclosure 1 is provided by the plurality of blades 22 of the louver 20 provided at the intake intake portion 12 of the intake passage 10. The noise leaking from the power chamber 6 to the outside can be suppressed.

In some embodiments, as shown in FIGS. 1, 2, and 7 to 9 described above, the power generation unit enclosure 1 is a filter device 30A provided on the downstream side of the louver 20 at the intake intake portion 12. (30) is further provided. Then, as shown in FIG. 4, the filter device 30A has a mesh-shaped first flat plate member 32 and a mesh-shaped second flat plate member 34.

As shown in FIG. 2, the mesh-shaped first flat plate member 32 is inclined with respect to the cross-sectional direction of the intake passage 10 so that one end 32a is located on the upstream side of the intake passage 10 with respect to the other end 32b. Be placed. On the other hand, in the mesh-shaped second flat plate member 34, one end 34a of the second flat plate member 34 is connected to the other end 32b of the first flat plate member 32, and one end 34a of the second flat plate member 34 is connected to the other end 34b. Is also arranged at an angle with respect to the cross-sectional direction of the intake passage 10 so as to be located on the downstream side of the intake passage 10.

In the embodiment shown in FIGS. 2, 7 and 8, the first flat plate member 32 takes in air so that one end 32a of the first flat plate member 32 is located on the inner vertical wall 18A side as compared with the other end 32b. It is arranged so as to be inclined with respect to the cross-sectional direction of the passage 10. On the other hand, the second flat plate member 34 is inclined with respect to the cross-sectional direction of the intake passage 10 so that the other end 34b of the second flat plate member 34 is located on the outer vertical wall 18B side as compared with the one end 34b. Have been placed. That is, when the filter device 30A is visually recognized along the longitudinal direction of the blade plate 22, the cross section of the filter device 30A through which the intake air passes has an inverted V shape due to the first flat plate member 32 and the second flat plate member 34. It is configured in.

In some embodiments, the filter device 30A may further include a mesh-shaped flat plate member in addition to the first flat plate member 32 and the second flat plate member 34. Further, in some embodiments, when the filter device 30A is visually recognized (visually viewed from the front) along the direction orthogonal to the longitudinal direction of the blade plate 22, the cross section of the filter device 30A through which the intake air passes is the first flat plate. The member 32 and the second flat plate member 34 may be configured to have an inverted V shape.

According to such a configuration, in the filter device 30A, since the first flat plate member 32 and the second flat plate member 34 are arranged so as to be inclined with respect to the cross-sectional direction of the intake passage 10, the same intake passage 10 is provided. Compared with the conventional filter device 30'in which the mesh-shaped flat plate member 35 is arranged along the cross-sectional direction, the cross-sectional area through which the intake air passes is large. Therefore, since the pressure loss with respect to the intake air becomes small, the intake duct portion 3 can be made compact by that amount.

Specifically, as shown in FIG. 5A, the length of the first flat plate member 32 is X, the length of the second flat plate member 34 is X, and the length 35L of the conventional flat plate member 35 is 2X. And. Then, it is assumed that one end 34a of the second flat plate member 34 is connected to the other end 32b of the first flat plate member 32 so that the second flat plate member 34 is at a right angle to the first flat plate member 32, for example. In such a case, the filter device 30A in the present disclosure secures the same cross-sectional area for the intake air to pass through the mesh-shaped flat plate members 32 and 34 as compared with the conventional filter device 30', and the inner vertical wall 18A. The length from the outer vertical wall 18B to the outer vertical wall 18B can be shortened by about √2 / 2.

Further, according to such a configuration, since the filter device 30A is provided on the downstream side of the louver 20, the louver 20 is sucked in as compared with the case where the filter device 30B is provided on the upstream side of the louver 20 as described later. It can be installed near the entrance 10a of the passage 10. Therefore, the intake air can be made to collide with a lower position on the inner surface of the outer vertical wall 18B, and rainwater and dust contained in the intake air can be further removed.

In some embodiments, as shown in FIG. 6, the power generation unit enclosure 1 further comprises a filter device 30B (30) provided upstream of the louver 20 at the intake intake 12. Then, as shown in FIG. 4, the filter device 30B has a mesh-shaped first flat plate member 32 and a mesh-shaped second flat plate member 34.

The mesh-shaped first flat plate member 32 is arranged so as to be inclined with respect to the cross-sectional direction of the intake passage 10 so that one end 32a is located on the downstream side of the intake passage 10 with respect to the other end 32b. On the other hand, in the mesh-shaped second flat plate member 34, one end 34a of the second flat plate member 34 is connected to the other end 32b of the first flat plate member 32, and one end 34a of the second flat plate member 34 is connected to the other end 34b. Is also arranged at an angle with respect to the cross-sectional direction of the intake passage 10 so as to be located on the upstream side of the intake passage 10.

In the embodiment shown in FIG. 6, the first flat plate member 32 is located in the cross-sectional direction of the intake passage 10 so that one end 32a of the first flat plate member 32 is located on the inner vertical wall 18A side as compared with the other end 32b. It is arranged at an angle with respect to. On the other hand, the second flat plate member 34 is inclined with respect to the cross-sectional direction of the intake passage 10 so that the other end 34b of the second flat plate member 34 is located on the outer vertical wall 18B side as compared with the one end 34a. Have been placed. That is, when the filter device 30B is visually recognized along the longitudinal direction of the blade plate 22, the cross section of the filter device 30B through which the intake air passes has a V shape due to the first flat plate member 32 and the second flat plate member 34. It is configured.
As will be described later, when the frame member 36 is attached to the intake duct portion 3, the lengths of the inner vertical wall 18A and the outer vertical wall 18B of the intake duct portion 3 including the filter device 30B are such that the intake air including the filter device 30A is provided. It is shorter than the length of the inner vertical wall 18A and the outer vertical wall of the duct portion 3.

In some embodiments, the filter device 30B may further include a mesh-shaped flat plate member in addition to the first flat plate member 32 and the second flat plate member 34. Further, in some embodiments, when the filter device 30B is visually recognized (visually viewed from the front) along the direction orthogonal to the longitudinal direction of the blade plate 22, the cross section of the filter device 30B through which the intake air passes is the first flat plate. The member 32 and the second flat plate member 34 may be configured to have a V shape.

According to such a configuration, in the filter device 30B, since the first flat plate member 32 and the second flat plate member 34 are arranged so as to be inclined with respect to the cross-sectional direction of the intake passage 10, the same intake passage 10 is provided. Compared with the conventional filter device 30'in which the mesh-shaped flat plate member is arranged along the cross-sectional direction, the cross-sectional area through which the intake air passes is large. Therefore, since the pressure loss with respect to the intake air becomes small, the intake duct portion 3 can be made compact by that amount.

Specifically, as shown in FIG. 5B, the length of the first flat plate member 32 is X, the length of the second flat plate member 34 is X, and the length 35L of the conventional flat plate member 35 is 2X. And. Then, it is assumed that one end 34a of the second flat plate member 34 is connected to the other end 32b of the first flat plate member 32 so that the second flat plate member 34 is at a right angle to the first flat plate member 32. In such a case, the filter device 30A in the present disclosure secures the same cross-sectional area for the intake air to pass through the mesh-shaped flat plate members 32 and 34 as compared with the conventional filter device 30', and the inner vertical wall 18A. The length from the outer vertical wall 18B to the outer vertical wall 18B can be shortened by about √2 / 2.

Further, according to such a configuration, since the filter device 30 is provided on the upstream side of the louver 20, the louver 20 is obstructed as compared with the case where the filter device 30A is provided on the downstream side of the louver 20 as described above. Instead, the filter device 30B can be removed from the power generation unit enclosure 1. Further, since the filter device 30B can be directly accessed, the filter device 30B can be easily cleaned. Therefore, the cleanability of the filter device 30B can be improved.

In some embodiments, as shown in FIG. 3, the louver 20 further comprises a frame member 36 that supports each of the plurality of blades 22 within the frame. Then, as shown in FIGS. 2 and 6 to 8, one end 32a of the first flat plate member 32 and the other end 34b of the second flat plate member 34 are connected to the frame member 36 to connect the louver 20 and the filter. The device 30 is integrated.

In the embodiment shown in FIG. 3, the frame member 36 includes an inner frame portion 36a on the side closer to the power chamber 6, an outer frame portion 36b on the side farther from the power chamber 6, one end 36a1 of the inner frame portion 36a, and an outer frame. It includes a first horizontal frame portion 36c that connects one end 36b1 of the portion 36b, and a second horizontal frame portion 36d that connects the other end 36a2 of the inner frame portion 36a and the other end 36b2 of the outer frame portion 36b. Further, the frame member 36 includes a frame space portion 37 (inside the frame) formed by being surrounded by the inner frame portion 36a, the outer frame portion 36b, the first horizontal frame portion 36c, and the second horizontal frame portion 36d.

In such a frame member 36, one end 22c of each of the plurality of blade plates 22 is connected to the first horizontal frame portion 36c of the frame member 36, and the other end 22d of each of the plurality of blade plates 22 is the frame. By being connected to the second horizontal frame portion 36d of the member 36, each of the plurality of blade plates 22 is supported by the frame space portion 37. Further, the cross-sectional shape of the frame space portion 37 of the frame member 36 has a rectangular shape, which is substantially the same as the cross-sectional shape of the intake duct portion 3 (the cross-sectional shape of the inlet 10a of the intake passage 10). That is, one louver 20 is attached to one intake duct portion 3.

In some embodiments, the cross-sectional shape of the frame space 37 of the frame member 36 may have a circular shape. Further, in some embodiments, a plurality of louvers 20 (for example, four louvers 20) may be attached to one intake duct portion 3.

Then, in the embodiment shown in FIGS. 2 and 6 to 8, one end 32a of the first flat plate member 32 is connected to the inner surface of the inner frame portion 36a, and the other end 34b of the second flat plate member 34 is the outer frame portion 36b. The louver 20 and the filter device 30 are integrated by connecting to the inner surface of the louver 20 and the filter device 30. Then, the inner frame portion 36a is attached to the inner vertical wall 18A, and the outer frame portion 36b is attached to the outer vertical wall 18B, so that the intake intake portion that opens downward to the outside at the inlet 10a of the intake passage 10 12 is formed.

According to such a configuration, the louver 20 and the filter device 30 are integrated. Therefore, it becomes easy to install the louver 20 and the filter device 30 at the intake intake portion 12. Further, for example, the louver 20 can be easily repaired or replaced due to deterioration over time, and maintainability can be improved.

In some embodiments, as shown in FIGS. 2 and 6-8, at least one of the plurality of wing plates 22 has a folded-back portion 39 provided at the downstream end 22b. In the illustrated embodiment, the wing plate 22 is located below the straight line P1 extending from the upstream end 22a of the wing plate 22 having the folded portion 39 through the downstream end 22b. It is provided at the downstream end 22b of the.

According to such a configuration, since the wing plate 22 has the folded-back portion 39, it is possible to prevent rainwater and dust contained in the intake air colliding with the wing plate 22 from being sucked into the intake duct portion 3. Can be done.

Further, in some embodiments, although not shown, the intake amount of the intake air sucked into the duct portion 3 may be increased by not providing the folded-back portion 39 on the farthest blade plate 221 described later.

In some embodiments, as shown in FIGS. 2 and 6 to 8, the power of the plurality of wing plates 22 is viewed in a cross-sectional view in which the intake intake portion 12 is visually recognized along the longitudinal direction of the wing plates 22. The tip of the folded-back portion 39 provided at the downstream end 221b of the farthest blade plate 221 located at the farthest position from the chamber 6 and the wall surface (outer frame of the frame member 36) on the side far from the power chamber 6 of the intake intake portion 12. Let L1 be the distance from the inner surface of the portion 36b). Then, in the pair of wing plates 22 and 22 adjacent to each other among the plurality of wing plates 22, the folded-back portion 39 provided at the downstream end 22b of the wing plates 22 on the side closer to the power chamber 6 and the side far from the power chamber 6 When the distance from the folded-back portion 39 provided at the downstream end 22b of the blade plate 22 is L2, L1 ≧ L2.

When the folded-back portion 39 is not provided at the downstream end 221b of the farthest blade plate 221, the distance between the downstream end 221b of the farthest blade plate 221 and the inner surface of the outer frame portion 36b of the frame member 36 is set to L1. May be good. Further, in the pair of wing plates 22 and 22 adjacent to each other among the plurality of wing plates 22, if the folded-back portions 39 and 39 are not provided at the downstream ends 22b and 22b of the pair of wing plates 22 and 22, the pair thereof. The distance between the downstream ends 22b and 22b of the blades 22 and 22 may be L2.

In the embodiment shown in FIG. 2, the distance L2 between the downstream ends 22b of the pair of blades 22 and 22 adjacent to each other among the plurality of blades 22 is the same. In some embodiments, although not shown, the relationship between L1 and L1 is the longest distance between the downstream ends 22b of a pair of adjacent blades 22 and 22 among the plurality of blades 22.

Of the intake air that has passed through the intake intake portion 12, the intake air that has passed through the side farther from the power chamber 6 is different from the intake air that has passed through the side closer to the power chamber 6, even if it is not guided by the blade plate 22. For example, by colliding with the intake air guided by the wing plate 22 on the side closer to the power chamber 6, it is possible to collide with the wall surface (inner surface of the outer vertical wall 18B) of the intake duct portion 3 on the side farther from the power chamber 6. is there.

According to such a configuration, the distance L1 between the downstream end 221b of the farthest blade plate 221 and the wall surface (inner surface of the outer frame portion 36b of the frame member 36) on the side far from the power chamber 6 of the intake intake portion 12 is , The distance L2 between the downstream ends 22b of the pair of blades 22 and 22 adjacent to each other among the plurality of blades 22 is larger. Therefore, while guiding the intake air in the intake duct portion 3 toward the wall surface of the intake duct portion 3 (inner surface of the outer vertical wall 18B) on the side far from the power chamber 6, the intake intake of the intake air sucked into the intake duct portion 3 is taken. The amount can be increased.

In some embodiments, as shown in FIG. 7, the farthest blade 221 located at the position farthest from the power chamber 6 among the plurality of blades 22 has the longest length from the upstream end 221a to the downstream end 221b. It is configured to be shorter.

According to such a configuration, the farthest wing plate 221 is configured so that the length from the upstream end 221a to the downstream end 221b is the shortest, so that the farthest wing plate 221 and the downstream end 221b of the farthest wing plate 221 and the intake intake are taken in. The distance L1 from the wall surface (the inner surface of the outer frame portion 36b of the frame member 36) on the side far from the power chamber 6 of the inlet portion 12 is lengthened, and the intake air that has passed through the intake intake portion 12 is supplied by the plurality of blade plates 22. It is possible to increase the amount of intake air sucked into the intake duct 3 while guiding the inside of the intake duct 3 toward the direction away from the power chamber 6.

In some embodiments, as shown in FIGS. 2, 6 to 8 described above, the intake duct portion 3 is connected to the intake intake portion 12 and the intake duct portion 3 is connected to the blade plate 22 in the longitudinal direction. Further having a vertical portion 16 having a vertical wall 18 extending in the vertical direction in a cross-sectional view viewed along the line. Then, as shown in FIGS. 2, 7 and 8, an extension line extending from the upstream end 222a of the recent blade 222, which is the closest to the power chamber 6 among the plurality of blades 22, through the downstream end 222b. P is configured to intersect the vertical wall 18 (outer vertical wall 18B).

According to such a configuration, the intake air recently guided into the intake duct portion 3 by the blade plate 222 located closest to the power chamber 6 is made to collide with the inner surface of the outer vertical wall 18B, and the outer loop of the intake passage 10 is formed. Can be made to flow. As a result, the intake air recently guided by the blade plate 222 also collides with the wall surface (inner surface of the outer vertical wall 18B) of the intake duct portion 3 on the side far from the power chamber 6, so that rainwater and dust contained therein can be removed. Can be removed.

In some embodiments, although not shown, the recent blade plate 222 is configured so that the length from the upstream end 221a to the downstream end 221b is the longest as compared with the other blade plates 22. Therefore, the intake air sucked into the intake duct portion 3 from the side close to the power chamber 6 can be made to collide with the wall surface of the outer vertical wall 18B.

In some embodiments, as shown in FIG. 8, the power generation unit enclosure 1 has a partition plate 40 extending in the intake passage 10 along the longitudinal direction of the blade plate 22 on the downstream side of the louver 20. Further prepare.

In the embodiment shown in FIG. 8, the partition plate 40 extends in the intake passage 10 along the longitudinal direction of the blade plate 22 on the downstream side of the filter device 30A. The partition plate 40 is arranged at a position where the distance from the inner vertical wall 18A to the partition plate 40 and the distance from the outer vertical wall 18B to the partition plate 40 are substantially the same.

For example, if the width of the inlet 10a of the intake passage 10 (the width in the direction away from the power chamber 6 in the cross-sectional view viewed along the longitudinal direction of the blade plate 22) is wide, or the suction force of the intake air from the power chamber 6 is large. Even if the louver 20 in the present disclosure is provided, in particular, the intake air sucked into the intake duct portion 3 from the side near the power chamber 6 is brought into the wall surface (outer vertical wall 18B) of the intake duct portion 3 on the side far from the power chamber 6. It may be difficult to collide with the inner surface of the).

According to such a configuration, a partition plate 40 extending in the intake passage 10 along the longitudinal direction of the blade plate 22 is further provided on the downstream side of the louver 20. Therefore, even if the intake air is sucked into the intake duct portion 3 from the side close to the power chamber 6, rainwater contained in the intake air supplied to the power chamber 6 can be generated by colliding the intake air with the partition plate 40. Dust can be removed.

Further, in some embodiments, the partition plate 40 may be provided with a sound absorbing material such as glass fiber or a foam material on the inner surface thereof. According to such a configuration, rainwater and dust contained in the intake air supplied to the power chamber 6 by colliding the intake air sucked into the intake duct portion 3 from the side close to the power chamber 6 with the partition plate 40. It is possible to enhance the effect of suppressing the noise leaking from the power chamber 6 of the power generation unit enclosure 1 to the outside while removing the noise.

Although the power generation unit enclosure 1 according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the object of the present invention. is there.

For example, as shown in FIGS. 9A and 9B, in the intake duct portion 3, the inlet 10a of the intake passage 10 is the end surface (side surface side end surface 2b) of the main body 2 on the intake duct portion 3 side. It may be configured to be arranged at a position opposite to the power chamber 6 side. According to such a configuration, as compared with the case where the inlet 10a of the intake passage 10 as shown in FIG. 1 described above is arranged at a position opposite to the power chamber 6 side with respect to the front end surface 2a, The power generation unit enclosure 1 can be made compact (the length from the inner vertical wall 18A of the intake duct portion 3 to the outer vertical wall 18B).

1 Enclosure for power generation unit 2 Main body 3 Intake duct part 4 Exhaust duct part 5 Muffler 6 Power chamber 7 Power generation unit 8 Generator 9 Power generation source 10 Intake passage 10a Inlet 10b Outlet 11 Exhaust passage 12 Intake intake 14 Intake / exhaust port Part 15 Duct part for muffler 16 Vertical part 17 Horizontal part 18 Vertical wall 18A Inner vertical wall 18B Outer vertical wall 19 Extending wall 20 Louver 22 Feather plate 22a Upstream end 22b Downstream end 30, 30A, 30B Filter device 32 First flat plate member 34 Second flat plate member 35 Flat plate member 36 Frame member 37 Frame space 39 Folded part 40 Partition plate 221 Farthest blade plate 222 Recently blade plate P extension line

Claims (8)

An enclosure for a power generation unit that houses a power generation unit consisting of a generator and a power generation source that drives the generator.
A main body having a power chamber inside which can accommodate the generator and the power generation source, and
An intake duct portion having an intake passage inside which intake air supplied to the power chamber flows, and at an intake intake portion that opens downward with respect to the outside at the inlet of the intake passage, and at an outlet of the intake passage. An intake duct portion having an intake / exhaust port portion that opens downward or sideways with respect to the power chamber, and an intake duct portion.
A louver provided at the intake intake portion, which is attached at a distance from each other in a direction away from the power chamber in a plan view, and has a plurality of long wing plates having a longitudinal direction.
A filter device provided on the downstream side of the louver at the intake intake portion is provided.
The plurality of blades are inclined in a direction away from the power chamber from the upstream end to the downstream end.
The filter device is
A mesh-shaped first flat plate member and a mesh-shaped second flat plate member are arranged so as to be inclined with respect to the cross-sectional direction of the intake passage so that one end is located on the upstream side of the intake passage from the other end. That is, one end of the second flat plate member is connected to the other end of the first flat plate member, and the one end of the second flat plate member is located downstream of the other end of the intake passage. An enclosure for a power generation unit, further comprising a mesh-shaped second flat plate member arranged so as to be inclined with respect to the cross-sectional direction of the intake passage. An enclosure for a power generation unit that houses a power generation unit consisting of a generator and a power generation source that drives the generator.
A main body having a power chamber inside which can accommodate the generator and the power generation source, and
An intake duct portion having an intake passage inside which intake air supplied to the power chamber flows, and at an intake intake portion that opens downward with respect to the outside at the inlet of the intake passage, and at an outlet of the intake passage. An intake duct portion having an intake / exhaust port portion that opens downward or sideways with respect to the power chamber, and an intake duct portion.
A louver provided at the intake intake portion, which is attached at a distance from each other in a direction away from the power chamber in a plan view, and has a plurality of long wing plates having a longitudinal direction.
A filter device provided on the upstream side of the louver at the intake intake portion is provided.
The plurality of blades are inclined in a direction away from the power chamber from the upstream end to the downstream end.
The filter device is
A mesh-shaped first flat plate member and a mesh-shaped second flat plate member, wherein one end is inclined so as to be located on the downstream side of the intake passage from the other end, and the first flat plate member. One end of the second flat plate member is connected to the other end, and the mesh-like first end is arranged so as to be inclined so that the one end of the second flat plate member is located on the upstream side of the intake passage from the other end. An enclosure for a power generation unit having two flat plate members. The louver further has a frame member that supports each of the plurality of blades in the frame.
The first or second claim, wherein the louver and the filter device are integrated by connecting the one end of the first flat plate member and the other end of the second flat plate member to the frame member, respectively. Enclosure for power generation unit. The enclosure for a power generation unit according to any one of claims 1 to 3 , wherein at least one of the plurality of wing plates has a folded-back portion provided at the downstream end. An enclosure for a power generation unit that houses a power generation unit consisting of a generator and a power generation source that drives the generator.
A main body having a power chamber inside which can accommodate the generator and the power generation source, and
An intake duct portion having an intake passage inside which intake air supplied to the power chamber flows, and at an intake intake portion that opens downward with respect to the outside at the inlet of the intake passage, and at an outlet of the intake passage. An intake duct portion having an intake / exhaust port portion that opens downward or sideways with respect to the power chamber, and an intake duct portion.
A louver provided at the intake intake portion, which is provided with a louver provided at a distance from the power chamber in a plan view and having a plurality of long wing plates having a longitudinal direction.
The plurality of blades are inclined in a direction away from the power chamber from the upstream end to the downstream end.
In a cross-sectional view of the intake intake portion visually recognized along the longitudinal direction of the feather plate.
The distance between the downstream end of the farthest blade plate located at the position farthest from the power chamber among the plurality of blade plates and the wall surface of the intake intake portion on the side farthest from the power chamber is L1.
When the distance between the downstream ends of a pair of adjacent blades among the plurality of blades is L2,
Enclosure for power generation unit where L1 ≧ L2. An enclosure for a power generation unit that houses a power generation unit consisting of a generator and a power generation source that drives the generator.
A main body having a power chamber inside which can accommodate the generator and the power generation source, and
An intake duct portion having an intake passage inside which intake air supplied to the power chamber flows, and at an intake intake portion that opens downward with respect to the outside at the inlet of the intake passage, and at an outlet of the intake passage. An intake duct portion having an intake / exhaust port portion that opens downward or sideways with respect to the power chamber, and an intake duct portion.
A louver provided at the intake intake portion, which is provided with a louver provided at a distance from the power chamber in a plan view and having a plurality of long wing plates having a longitudinal direction.
The plurality of blades are inclined in a direction away from the power chamber from the upstream end to the downstream end.
The farthest wing plate located at the position farthest from the power chamber among the plurality of wing plates is an enclosure for a power generation unit configured so that the length from the upstream end to the downstream end is the shortest. A vertical portion having a vertical wall extending in the vertical direction in a cross-sectional view in which the intake duct portion is connected to the intake intake portion and the intake duct portion is visually recognized along the longitudinal direction of the blade plate. Have more
Claims 1 to 6 in which the extension line extending from the upstream end to the downstream end of the recent blades closest to the power chamber among the plurality of blades passes through the downstream end is configured to intersect the vertical wall. The enclosure for the power generation unit according to any one of the above. The enclosure for a power generation unit according to any one of claims 1 to 7 , further comprising a partition plate extending in the intake passage along the longitudinal direction of the feather plate on the downstream side of the louver.

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