JP3177902B2 - Gas heat pump equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas heat pump device driven by a gas engine.

[0002]

2. Description of the Related Art Components of such a gas heat pump device include a gas engine as a drive source, a compressor driven by the gas engine to compress refrigerant such as chlorofluorocarbon, a refrigerant unit for storing refrigerant, and a compressor. A heat exchanger such as an evaporator and a condenser for cooling the compressed refrigerant to vaporize and liquefy it, an air cleaner for purifying fresh air (combustion air) sucked into the gas engine, and introducing exhaust gas to muffle the sound. Exhaust oil silencer, an oil separator for separating and removing oil contained in blow-by gas from the gas engine, an oil tank for storing lubricating oil, and the like. These components are housed in a common casing to constitute a gas heat pump device as one unit.

[0003]

However, in the conventional gas heat pump device, since each component device is arranged independently in the casing, compactness is hindered, the number of parts is increased, and the number of parts at the time of assembly is increased. There has been a problem that the number of assembling steps and the cost are increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to reduce the number of parts to achieve compactness, cost reduction, and a reduction in the number of parts assembling steps. Is to provide.

[0005]

In order to achieve the above object, the present invention provides a gas engine as a drive source and includes a compressor, an air cleaner, an exhaust silencer, an oil separator, an oil tank, a refrigerant unit, and a heat exchanger. In the gas heat pump device described above, the exhaust silencer and the oil separator are integrated into a unit by incorporating the oil separator into the exhaust silencer.

[0006]

According to the present invention, since the exhaust silencer and the oil separator are integrated and configured as a unit,
These installation spaces are reduced, and the gas heat pump device is made compact.

Further, the number of parts constituting the equipment of the gas heat pump device can be reduced, and in assembling the gas heat pump device, the number of steps for assembling the parts can be reduced and cost can be reduced.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of a unitized air cleaner, exhaust silencer, oil separator and oil tank of a gas heat pump device according to the present invention, FIG. 2 is a side view thereof (a view in the direction of arrow A in FIG. 1), 3 is a front view of the exhaust silencer and the oil separator, FIG. 4 is a side view thereof (a view in the direction of arrow B in FIG. 3), FIG. 5 is a plan view thereof, and FIG. 6 is a cutaway front view of the gas heat pump device according to the present invention. FIG. 7 and FIG. 7 are cutaway side views (view in the direction of arrow C in FIG. 6).

First, a schematic configuration of a gas heat pump device according to the present invention will be described with reference to FIGS. 6 and 7. The space defined by partitions 2 and 3 in a lower portion of a casing 1 contains a gas as a driving source. The engine 4 is installed.

The gas engine 4 operates using gas as fuel, and two compressors 5 driven by the gas engine 4 are arranged on the right side (right side in FIG. 1) of the gas engine 4. Has been established.

Further, the compressors 5, 5 in the space are provided.
An air cleaner 6, an exhaust silencer 7, an oil tank 8, and an oil separator 9 integrated as a unit are installed above the unit, and the oil separator 9 is incorporated in the exhaust silencer 7.

On the other hand, a refrigerant unit 10 for storing a refrigerant such as chlorofluorocarbon is installed in a space opposite to the gas engine 4 with the partition wall 3 interposed therebetween.
Above 0, two heat exchangers 11, 11 are installed. In the drawing, reference numeral 12 denotes an electrical unit, and reference numeral 13 denotes an opening / closing lid for maintenance.

In this embodiment, the air cleaner 6 is connected to the intake side of the gas engine 4, and two exhaust pipes 1 are provided from the exhaust side of the gas engine 4.
The exhaust pipes 14 are connected to an exhaust gas heat exchanger 15. Two exhaust pipes 16, 16 are led out of the exhaust gas heat exchanger 15, and these exhaust pipes 16, 16 are connected to the exhaust silencer 7. The oil separator 9 is
This is for separating and removing oil contained in blow-by gas introduced from the gas engine 4.

Here, the structure of the air cleaner 6, the exhaust silencer 7, the oil tank 8, and the oil separator 9 integrated as a unit will be described with reference to FIGS.

As shown in the figure, the air cleaner 6 and the exhaust silencer 7 are juxtaposed and juxtaposed, and the oil tank 8 is integrally formed on them. As described above, the oil separator 9 is incorporated in the exhaust silencer 7.

The constructions of the exhaust silencer 7 and the oil separator 9 are shown in detail in FIGS. 3 to 5. As shown, a total of eight chambers S1 to S8 are provided in a casing 17 constituting the exhaust silencer 7. Is defined,
An oil separator 9 is incorporated in the chamber S1.

When the gas heat pump device is driven to operate the gas engine 4, the gas engine 4
The compressors 5, 5 are driven by the compressor, and the refrigerant is compressed by the compressors 5, 5 to be used for cooling or heating.

Meanwhile, in the gas engine 4, fresh air (combustion air) purified through the air cleaner 6 receives a mixture of fuel gas in a process of passing through an intake manifold and an intake passage (not shown), and is mixed with the fuel gas. An air-fuel mixture is introduced into a combustion chamber (not shown) to be used for combustion.

The high-temperature, high-pressure exhaust gas generated by the combustion of the air-fuel mixture in the combustion chamber is introduced into an exhaust gas heat exchanger 15 through exhaust pipes 14, 14, where heat exchange with the cooling water is performed. After being cooled down, it is introduced into the exhaust silencer 7 through the exhaust pipes 16, 16.

In the exhaust silencer 7, the exhaust gas is
8, the exhaust gas is introduced into the chamber S1, and the exhaust gas heats the oil separator 9 incorporated in the chamber S1.
From the chamber S2. Thereafter, the exhaust gas flows from the chamber S2 to the chamber S3 through the pipe 20, from the chamber S3 to the chamber S4 through the pipe 21, and from the chamber S4 to the chamber S5 through the pipe 22.
From the room S5 to the room S6 through the pipe 23; from the room S6 to the room S7 through the pipe 24;
, Is sequentially introduced into the chamber S8, and in the process, the expansion is repeated to mute the sound. Finally, the air is discharged from the chamber S8 into the atmosphere through the pipe 26.

On the other hand, blow-by gas from the gas engine 4 is introduced into the oil separator 9 from the pipe 27, and the blow-by gas is separated and removed from the oil by the oil separator 9, and then passes through the pipe 28 to the air cleaner 6.
And returned to combustion. At this time, since the oil separator 9 is heated by the exhaust gas flowing through the chamber S1 in the casing 17 as described above, the oil separator 9 is heated.
This prevents condensation of the blow-by gas introduced into the blow-by gas. Therefore, in this embodiment, the oil separator 9
This eliminates the need for a conventional heater, thereby effectively using the heat of the exhaust gas. In addition, the oil separator 9
Is performed in order to prevent the deterioration of oil and the generation of mayonnaise sludge due to the cooling of the blow-by gas and the formation of dew on the blow-by gas.

In the above, in this embodiment, since the exhaust silencer 7 and the oil separator 9 are integrated as a unit by incorporating the oil separator 9 in the exhaust silencer 7, the installation space for these is reduced, and the gas heat pump device is used. Is made compact.

Further, the number of parts constituting each of the above devices can be reduced, and the number of steps for assembling the parts in assembling the gas heat pump device can be reduced, so that the cost can be reduced.

[0025]

As is apparent from the above description, according to the present invention, a gas engine is used as a drive source and includes a compressor, an air cleaner, an exhaust silencer, an oil separator, an oil tank, a refrigerant unit, and a heat exchanger. In the gas heat pump device, the exhaust silencer is integrated into the exhaust silencer to integrate the exhaust silencer and the oil separator to form a unit. Thus, the effect of reducing the number of man-hours for assembling parts and the like can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of a unitized air cleaner, an exhaust silencer, an oil separator, and an oil tank of a gas heat pump device according to the present invention.

FIG. 2 is a side view of the unitized air cleaner, exhaust silencer, oil separator and oil tank of the gas heat pump device according to the present invention (a view in the direction of arrow A in FIG. 1).

FIG. 3 is a front view of an exhaust silencer and an oil separator.

4 is a side view of the exhaust silencer and the oil separator (a view in the direction of arrow B in FIG. 3).

FIG. 5 is a plan view of an exhaust silencer and an oil separator.

FIG. 6 is a cutaway front view of the gas heat pump device according to the present invention.

7 is a cutaway side view (a view in the direction of arrow C in FIG. 6) of the gas heat pump device according to the present invention.

[Explanation of symbols]

 Reference Signs List 4 gas engine 5 compressor 6 air cleaner 7 exhaust silencer 8 oil tank 9 oil separator 10 refrigerant unit 11 heat exchanger

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F25B 27/00 F01M 13/00 F01N 1/02 F01N 1/08 F24F 5/00

Claims (1)

(57) [Claims] 1. A gas heat pump apparatus comprising a gas engine as a drive source and including a compressor, an air cleaner, an exhaust silencer, an oil separator, an oil tank, a refrigerant unit, and a heat exchanger , wherein the oil separator is provided in the exhaust silencer. Incorporate
The exhaust silencer and oil separator.
A gas heat pump device, which is integrally formed as a unit .