JP2002357165A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner provided with an intake device preventing rainwater from reaching an engine to perform its good operation by quickly separating and discharging the sucked rainwater in the atmosphere and eliminating a height limit of mounting position itself. SOLUTION: An intake device is formed into a triple structure of cylindrical shape out of an outer cylinder 6, an inner cylinder 7, and an intake conduit part 8, by providing a lengthwise long cut raised intake port toward the inside of the outer cylinder 6 in its side surface, air for combustion is whirled, centrifugal force is given to mixed rainwater, to make the rainwater adhere to an inner wall of the outer cylinder 6 and separate from the air for combustion. The air for combustion separated from the rainwater goes down between the outer/inner cylinders 6, 7, and rises up between the inner cylinder 7 and the intake conduit part 8, to be sucked into the intake conduit part 8, to reach an engine. One separated rainwater is discharged from a rainwater discharge port 5 in a side surface lower part of the outer cylinder 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas engine air intake system and, more particularly, to the treatment of combustion air taken in by a gas heat pump type air conditioner that drives a compressor by the driving force of a gas engine or the like.

[0002]

2. Description of the Related Art In an outdoor unit of a gas heat pump type air conditioner, a gas engine for driving a compressor and an engine intake device for supplying air to the gas engine are installed in a machine room.

The above-mentioned engine intake device supplies combustion air taken in from an intake port to a gas engine through an intake path. A water collection box for separating rainwater from the taken-in combustion air and collecting the rainwater is provided. Is provided. In this water recovery box, while reducing the flow velocity of the combustion air, the rainwater alone is separated and collected by colliding the suctioned combustion air with a built-in shielding plate, and stored and stored in the water collection box. The water was drained from the drain pipe extended to the hole.

[0004]

However, the flow of the combustion air sucked from the intake port is basically provided with an intake path through which the combustion air flows upward from below to promote separation of rainwater contained therein. Because of this, the air inlet had to be installed at a low position in the outdoor unit.

[0005] Therefore, an object of the present invention is to provide an air conditioner which can quickly separate only rainwater from the inhaled air and prevent rainwater from reaching the engine even if the intake port of the engine is installed at a high position. Is to provide.

[0006]

According to a first aspect of the present invention, there is provided an intake device for sucking combustion air for an engine from an intake port, and the combustion air and fuel are burned in an internal combustion engine such as a gas engine. An air conditioner having an outdoor unit having a built-in compressor driven by using the driving force generated by the method described above, wherein the combustion air is sucked while swirling from an intake port of the intake device. is there.

According to a second aspect of the present invention, in the first aspect of the invention, the external appearance of the intake device is a cylindrical housing,
An intake port formed by cutting and raising the side surface of the cylindrical housing is provided, from which combustion air is sucked.

According to a third aspect of the present invention, in accordance with the first or second aspect of the present invention, there is provided a cylindrical cylinder having an outer cylinder, an inner cylinder inside the outer cylinder, and an intake conduit portion inside the outer cylinder.
It is characterized by having a double structure.

The invention described in claim 4 is the first to third aspects of the present invention.
In the invention according to any one of the above, an intake port for sucking combustion air into the intake device, a rainwater separation unit that separates rainwater mixed in at the time of suction of the combustion air,
The separated rainwater pool and the outlet for discharging the rainwater are housed in the intake device having a cylindrical housing.

[0010]

An embodiment of the present invention will be described below with reference to FIGS. First, FIG. 1 is a perspective view, partially cut away, of an outdoor unit of a gas heat pump type air conditioner provided with an embodiment of an engine intake device according to the present invention.

Although the interior of the outdoor unit 20 in the gas heat pump type air conditioner is not shown, a machine room 21 containing a compressor and a gas engine has a heat exchanger 22 and a blower 23 built-in below it. The equipment room 24 is disposed above, respectively, and the machine room 21 and the heat exchanger room 24
Are separated by a drain pan 25, and an intake device 30 is mounted on the drain pan 25.
A base member 26 is provided at a lower end of the machine room 21, and the machine room 21 is supported by the base member 26.

In the heat exchanger chamber 24, the heat exchanger 22 is disposed on a side surface facing the heat exchanger room 24, and an exterior panel 27 is disposed at a position orthogonal to the heat exchanger 22.

The exterior panel 2 constituting the machine room 21
8 and 29, the exterior panel 28 is provided below the exterior panel 27, and the exterior panel 29 is provided below the heat exchanger 22.

FIG. 2 is a perspective view of the external appearance of the intake device 30.
The outer cylinder 6 has a vertical cylindrical appearance made by rolling a single stainless steel or rust-proof metal flat plate, and has a vertically long intake port 1 cut inward on the upper side. As in the case of the outer cylinder 6, the top surface is closed by a top plate 2 made of a single stainless steel or rust-proof metal flat plate processed into a circular shape.
Further, a drain port 5 for discharging rainwater separated from the sucked combustion air is opened at the lower end of the side surface of the outer cylinder 6. The outer cylinder 6 is attached to the pedestal 3 for preventing rainwater from entering from the attachment portion when the outer cylinder 6 is attached to the outdoor unit, and is attached to the outdoor unit by the mounting bracket 4 extending left and right from the lower end of the pedestal 3. It has a structure that can be attached. The pedestal 3 and the mounting bracket 4 are, like the outer cylinder 6 and the top plate 2, also machined from a single stainless steel or rust-proof metal flat plate.

On the other hand, as shown in FIG. 4, inside the outer cylinder 6, similarly to the outer cylinder 6, an inner cylinder 7 made by rolling a single stainless steel or rust-proof metal flat plate is provided. A conduit portion 8 is provided. Inside the cylindrical outer tube 6, a cylindrical inner tube 7 having an upper end fixed to the top plate 2, and combustion air is provided between the lower end and the pedestal 3. It is mounted in a form with a passage for passing through. The intake conduit section 8 is located inside the inner cylinder 7, and is attached to the pedestal 3 such that the upper end thereof is higher than the lower end of the inner cylinder 7, and the other lower end is The rainwater is connected to an intake path for guiding the separated combustion air to the engine.

When the engine starts, the engine:
In order to inhale the combustion air, the intake device 3
0 becomes negative pressure, and intake starts from the intake port 1 opened in the outer cylinder 6. When the intake starts, as shown by an arrow in FIG.
Due to the shape of the intake port 1 and the cylindrical shape of the outer cylinder 6, the combustion air enters the intake port 1 obliquely, and is sucked while being swirled in the direction of the arrow 10. Then, the rainwater contained in the combustion air is given a centrifugal force by turning, and adheres to the inner wall of the outer cylinder 6 due to the centrifugal force, and is separated from the combustion air.

Then, it is sucked from the intake port 1 and
The combustion air from which the rainwater has been separated is supplied to the outer cylinder 6 and the inner cylinder 7 shown in FIG.
When it moves downward as indicated by an arrow 11 while turning between the inner cylinder 7 and the lower end of the inner cylinder 7, it passes through the passage between the inner cylinder 7 and the pedestal 3, and this time, the inner cylinder 7 and the intake conduit section 8. , Rises as indicated by an arrow 12, is drawn into an intake conduit section 8 as indicated by an arrow 13, and is sucked into the engine via an intake path.

On the other hand, the separated rainwater adheres to the inner wall of the outer cylinder 6 and is obliquely moved along the inner wall of the outer cylinder 6 by its own weight and the wind pressure of the separated combustion air moving downward. It flows down, reaches the water reservoir on the pedestal 3 below the inner cylinder 7, and is discharged from the suction device 30 through the drain port 5 at the lower side of the outer cylinder 6 in FIG. .

Since the suction device 30 is mounted on the drain pan 25 of the outdoor unit 20 shown in FIG. 1, the rainwater discharged from the rainwater discharge port 5 is supplied to the heat exchanger 2.
The water is discharged from the outdoor unit 20 together with the second drain water.

[0020]

As described above, in the air conditioner provided with the intake device of the present invention, since the intake device is provided with the means for swirling and sucking the combustion air of the engine, the combustion air sucked from the intake port is provided. Since the turning force is applied, it is possible to quickly separate the combustion air from the engine and the rainwater.

Further, in order to house the suction port, the rainwater separating section, the separated rainwater pool section, and the rainwater discharge section in one cylindrical housing, the rainwater is separated from the intake of combustion air. Since the separated rainwater is discharged inside the intake device, there is no need to particularly limit the height position of the installation, and the outdoor unit can be mounted at a high position.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an outdoor unit of a gas engine heat pump air conditioner to which an embodiment of an intake device according to the present invention is applied.

FIG. 2 is a perspective external view of an intake device according to an embodiment of the present invention.

FIG. 3 is a view showing a flow of combustion air from an intake port to an intake path, which is taken along a section of the intake device of FIG. 2;

FIG. 4 is a view showing the flow of combustion air from an intake port to an intake path when the intake device of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 intake port 2 top plate 3 pedestal 4 bracket for mounting outdoor unit 5 rainwater outlet 6 outer cylinder 7 inner cylinder 8 intake passage 10 to 13 path of combustion air 20 outdoor unit 21 machine room 22 heat exchanger 23 blower 24 heat exchange Instrument room 25 Drain pan 26 Base member 27 Exterior panel 28 Exterior panel 29 Exterior panel 30 Suction device

Claims (4)

[Claims] 1. A compressor that includes an intake device that sucks combustion air for an engine from an intake port, and that is driven using a driving force generated by burning the combustion air and fuel in an internal combustion engine such as a gas engine. An air conditioner having a built-in outdoor unit, wherein a means for swirling and sucking combustion air for an engine is provided in the intake device. 2. The air conditioner according to claim 1, wherein the external appearance of the intake device is a cylindrical housing, and combustion air for the engine is sucked from an intake port cut and raised on a side surface of the cylindrical housing. . 3. The air conditioner according to claim 1, wherein the structure of the intake device is a cylindrical triple structure. 4. The apparatus according to claim 1, wherein the suction port, the rainwater separating portion, the separated rainwater reservoir, and the rainwater discharging portion are housed in a single cylindrical housing. The air conditioner as described in the above.