JPH1182295A - Gas compressor and compressed gas supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas compressor which utilizes an advantage of using a Stirling engine as a driving source, camprising a buffer space. SOLUTION: A compressor 10 is driven by a Stirling engine 2 which involves a buffer space 3. Gas 4 sucked from outside and compressed by a compressor 10 is introduced to a buffer space 3 through a compressed gas introduction passage 11 branched from a compressed gas supply passage 17. As a result, buffer pressure in the buffer space 3 increases automatically, therefore, it is possible to eliminate a troublesome processing such as charging high-pressure gas into the buffer space 3 from the outside. The high-pressure gas 4 can be supplied into the buffer space 3 all the time, therefore, it is possible to avoid such an aging decrease in internal pressure in a buffer space as found in a conventional type, dispensing with maintenance. Further, the buffer space 3 can be used as a receiver tank (gas accumulating chamber).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas compressor and a compressed gas supply system using a Stirling engine as a driving source (power source).

[0002]

2. Description of the Related Art Hitherto, a Stirling engine has a high thermal efficiency equivalent to a Carnot cycle in principle, and is an external combustion engine and various heat sources, particularly geothermal, which is difficult to transport (store). ｝ Can be used, the noise is low because it does not involve explosive combustion like an internal combustion engine, and the incomplete combustion is less generated than the internal combustion engine, and it is advantageous for the emission of harmful exhaust components. In view of the above, attention has been paid to a new power source, and various types of power sources have been proposed.

For example, a so-called displacer-type Stirling engine as shown in FIG. 6 and an α-type (L-type) Stirling engine as shown in FIG. 7 are known.

[0004]

By the way, the applicant of the present invention has disclosed such a displacer-type Stirling engine and α.
The Stirling engine is covered with a pressure vessel, and a relatively high-pressure working gas is sealed in the pressure vessel to create a so-called buffer space, which increases the average pressure Pm (buffer pressure) of the working gas and increases the output of the Stirling engine. A proposal was made to increase the fuel consumption and improve the fuel efficiency (Japanese Patent Application No. 7-79).
193893 and Japanese Patent Application No. 9-125963).

[0005] The applicants of the present invention have found out that the Stirling engine has the following advantages during repeated studies on the Stirling engine having such a buffer space. That is, when a Stirling engine including a buffer space is used as a drive source of a gas compression device, a part of the high-pressure gas generated by the gas compression device is supplied to the buffer space, and thus, the gas is supplied from the outside. The troublesome process of filling the buffer space with a high-pressure working gas can be eliminated.

In addition, with such a configuration, the high-pressure gas can always be replenished in the buffer space as long as the gas compression device is operated. It is technically and costly difficult to completely seal the buffer space) and maintenance-free. In addition, the necessity of making the buffer space a highly sealed structure can be reduced as compared with the related art, which is extremely advantageous in terms of technology and cost.

Further, when considered as a compressed gas supply system, compressed gas is stored in the buffer space, so that a buffer space for increasing the output of a Stirling engine or the like can be simultaneously used as a receiver tank. become. Therefore, unlike the conventional case, there is no need to provide a separate receiver tank.
Cost reduction and the like can be promoted.

In addition, for example, in factories, hospitals, various plants, etc., compressed gas supply lines are routed so that compressed gas supplied from a main compression device can be used at each location. Since the Stirling engine having the above can be operated even by using a low-temperature heat source such as geothermal heat or waste heat, a Stirling engine using the geothermal heat or waste heat as an energy source at a place where waste heat or the like is generated as a driving source. If a compressed gas supply device is provided and connected to the compressed gas supply line, compressed gas can be supplied to the compressed gas supply line while effectively utilizing geothermal heat, waste heat, and the like. And energy consumption can be reduced.

The present invention has been made based on the above-described new findings, and provides a gas compression device that utilizes the advantage of using a Stirling engine including a buffer space as a driving source, and An object of the present invention is to provide a compressed gas supply system that effectively uses geothermal heat, waste heat, and the like.

[0010]

According to the first aspect of the present invention, there is provided a gas compression apparatus driven by a Stirling engine including a buffer space. A part of the compressed gas is introduced into the buffer space from a compressed gas supply passage for supplying the compressed gas to the use destination.

With this configuration, the following operation and effect can be obtained. That is, when the Stirling engine is started, the compressed gas can be automatically supplied (introduced) to the buffer space. Therefore, it is possible to eliminate the troublesome process of filling the buffer space with a high-pressure gas from the outside and eliminate the trouble of the Stirling engine. The average pressure Pm (so-called buffer pressure) of the working gas can be automatically increased to a predetermined pressure. That is, it is possible to increase the output of the Stirling engine, improve fuel efficiency, and the like while eliminating the troublesome process of filling the buffer space with high-pressure working gas from the outside.

In addition, as long as the Stirling engine is operated and the gas compressor is operated, the buffer space can be replenished with the compressed gas at all times. And maintenance free. Also, with this,
Compared with the related art, the buffer space does not need to have a highly sealed structure, which can be extremely advantageous in terms of technology and cost.

Further, since the buffer space is communicated with the compressed gas supply passage, the buffer space can function as a storage space for the compressed gas. It can be used as a receiver tank (gas accumulator) necessary for achieving stable gas supply. In other words, since it is not necessary or possible to provide a separate receiver tank in the compressed gas supply system, it is possible to promote downsizing, cost reduction, and the like of the system.

In the invention according to claim 2, the gas compression device is configured to compress the gas via a reciprocating compressor. With this configuration, in addition to providing the same operation and effect as the first aspect of the present invention, a general, simple, and highly reliable reciprocating reciprocating machine utilizes the rotation of the crankshaft of the Stirling engine. Since the dynamic compressor can be operated, simplification of the configuration and cost reduction can be promoted while maintaining high reliability of the present apparatus.

According to the third aspect of the present invention, the crankshaft of the reciprocating compressor is shared with the crankshaft of the Stirling engine. With such a configuration,
In addition to having the same effect as the first aspect of the invention, the crankshaft of the reciprocating compressor can be used as it is as the crankshaft of the reciprocating compressor. Can be omitted, so that simplification of the configuration and cost reduction can be further promoted while maintaining high reliability of the present apparatus.

According to a fourth aspect of the present invention, the reciprocating part of the reciprocating compressor is reciprocated through the reciprocating movement of the reciprocating part of the Stirling engine. With this configuration, in addition to providing the same functions and effects as the invention described in claim 1, the reciprocating portion of the Stirling engine (various pistons including a power piston,
The reciprocating part (piston) of the reciprocating compressor is reciprocated by the reciprocating motion of the displacer, etc., so that the reciprocating part of the reciprocating compressor crankshaft and the crankshaft rotating motion are reciprocated. It is possible to omit a mechanism or the like for converting to. Therefore, the simplification of the configuration and the cost reduction while maintaining the reliability of the present device at a high level,
Can be promoted.

According to a fifth aspect of the present invention, the back of the piston of the reciprocating compressor is made to face the buffer space of the Stirling engine. With this configuration, in addition to achieving the same functions and effects as the invention described in the first aspect, high-pressure gas can act on the piston back surface of the reciprocating compressor. By increasing the pressure, the amount of gas leakage from the gap between the piston and the cylinder of the reciprocating compressor (usually a piston ring is interposed in the piston) can be reduced. Efficiency can be improved. In addition, since gas leakage to the outside can be reduced, there is a case where there is a danger due to gas leakage depending on the noise reduction and the type of gas used. However, such a danger can be avoided. .

In the invention according to claim 6, the gas compression device is an air compression device. As described above, if the gas is air (atmosphere), there is no danger even if there is a gas leak or the like, there is no influence on the environment, it is extremely easy to obtain and the cost is low. The applicability of the device can be greatly expanded. In the compressed gas supply system according to the seventh aspect of the present invention, when a heat source is located near a compressed gas supply line for supplying a compressed gas to a compressed gas supply destination separated from the gas compression device, the heat source is switched to an energy source. A gas compression device using a Stirling engine as a driving source as a driving source is disposed near the heat source, and the gas compressed by the gas compression device is supplied to the compressed gas supply line.

That is, in factories, hospitals, various plants, etc., for example, as shown in FIG. 2, the compressed gas supplied from the main compression device is supplied to each location (each use location. Although it does not matter), the compressed gas supply line is wrapped around, but in such a case, if there is a heat source such as hot spring water, geothermal heat or waste heat near the compressed gas supply line, At a location where such waste heat or the like is generated, a gas compression device that is driven by a Stirling engine that uses hot spring water, geothermal energy, waste heat, or the like as an energy source is disposed, and the gas compressed by the gas compression device is compressed. By supplying the gas to the gas supply line, it is possible to suppress the decrease in the internal pressure of the compressed gas supply line while effectively utilizing geothermal heat, waste heat, and the like, and to reduce the size of the main compression device and the like, reduce energy consumption, etc. It can be reduced to become.

In other words, heat sources such as geothermal heat and waste heat are more difficult to transport and store than energy sources such as electricity, fossil fuels, natural gas, etc., and cannot be used effectively at present. However, according to the present invention, it is possible to provide a compressed gas supply system that effectively utilizes a heat source such as geothermal heat or waste heat. In the invention according to claim 8, the gas compression device using a Stirling engine that uses the heat source as an energy source as a drive source is the gas compression device according to any one of claims 1 to 6. did.

With this configuration, the operation and effect of the invention described in claim 7 can be obtained, and further, the invention can be achieved in any one of claims 1 to 5.
The operation and effect of the invention described in claim 6 can be simultaneously achieved.

[0022]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a gas compression device 1 according to a first embodiment of the present invention, showing an overall configuration. The Stirling engine 2 used for the gas compression device 1 in the present embodiment includes a buffer space 3
Any type of Stirling engine such as a displacer-type Stirling engine or an α-type Stirling engine may be used as long as it has the following. In FIG. 1, a displacer-type Stirling engine is shown as an example.

The displacer type Stirling engine 2 may be of a known type, and is provided with a gas through a reciprocating motion of a displacer 6 (a displacer is usually provided with a piston ring) connected to a crankshaft 5. 4 (functioning as a working gas) is moved between the heater H, the regenerator R, and the cooler C to change the pressure of the gas 4 (working gas). Is interposed through the crankshaft 5.

In the present embodiment, as shown in FIG. 1, a pressure vessel (buffer tank) 8 for creating the buffer space 3 is provided so as to cover the back surface of the power piston 7. The end of the crankshaft 5 is taken out of the pressure vessel 8 via a shaft seal 9 and the like. The pressure vessel 8 has a compressed gas introduction passage 11.
The gas 4 pressurized by the compressor 10 described later is introduced through the
The average pressure Pm (so-called buffer pressure) of the gas (functioning as a working gas) can be increased, so that the output can be increased and the fuel efficiency can be greatly improved. Or low-temperature heat sources such as geothermal and waste heat (for example, 10
Operation is possible even at about 0 ° C).

The compressor 10 has a piston 1 via a crankshaft 13 connected to a crankshaft 5 of the Stirling engine 2 via a coupling (shaft coupling) 18 or the like.
By reciprocating 2 (a piston is usually provided with a piston ring), gas 4 is sucked into cylinder 14 and compressed. Specifically, the one-way valve 15 is opened by utilizing the negative pressure in the cylinder 14 when the piston 12 descends, and the gas 4 is sucked into the cylinder 14. And piston 1
When the valve 4 rises (compression), the one-way valve 15 is closed to compress the gas 4 in the cylinder 14, and the compressed gas 4 is compressed via the one-way valve 16 which opens at a predetermined pressure. The liquid is discharged to the supply passage 17. However, in the present embodiment, the compressor 10 is not limited to the reciprocating type (displacement type) described above.
It is also possible to use a compressor of a rotary type (a positive displacement type and a non positive displacement type).

It should be noted that the compressed gas supply passage 17 is
As shown in the figure, the fuel gas is branched into two branches and communicates with the pressure vessel 8 through the compressed gas introduction passage 11, while the compressed gas flows to another supply destination (the original supply destination as a gas compression device). 4 can be supplied. According to the gas compression device 1 having such a configuration, the following operational effects can be obtained.

(I) When the Stirling engine 2 is started, the gas 4 is compressed by the operation of the compressor 10 and discharged to the compressed gas supply passage 17. Then, the compressed gas 4 is automatically introduced into the pressure vessel 8 through the compressed gas introduction passage 11, so that the average pressure Pm of the gas 4 (functioning as a working gas) of the Stirling engine 2 (so-called, “so-called working gas”). Buffer pressure)
To a predetermined pressure.

As a result, the troublesome process of filling the buffer space 3 (inside the pressure vessel 8) with the high-pressure gas 4 from the outside can be eliminated. Also, Stirling engine 2
Output, fuel efficiency, etc., and a low-temperature heat source such as hot spring water, geothermal heat, waste heat, etc.
C), the Stirling engine 2 and thus the gas compression device 1 can be operated.

(Ii) Moreover, as long as the Stirling engine 1 is operated and the gas compression device 1 is operated, the high-pressure gas 4 can be always replenished in the buffer space 3 (in the pressure vessel 8). Such a temporal decrease in the internal pressure of the buffer space can be avoided, and maintenance-free operation can be achieved. In addition, since the buffer space 3 does not need to have an advanced sealed structure as compared with the related art, it is extremely advantageous in terms of technology and cost.

(Iii) Further, when considering the entire compressed gas supply system including the compressor 10, the Stirling engine 2, which is a driving source (power source) thereof, and the compressed gas supply passage 17, the buffer space 3 (pressure vessel) 8) can function as a storage space for the compressed gas 4,
The buffer space 3 (pressure vessel 8) can be used as a receiver tank (gas accumulator) necessary for achieving stable gas supply at the original gas supply destination as a gas compression device.

That is, according to the present embodiment, there is no need to separately provide a receiver tank in the compressed gas supply system, so that the system can be reduced in size and cost. (iv) In addition, for example, in factories, hospitals, various plants, etc., as shown in FIG. 2, the main compression device 100 (electrically driven compressor, internal combustion engine driven compressor, Stirling engine driven compressor using a heat source or the like as a driving source, etc.) ) Is supplied to each part (each use place) A ~
H so that the compressed gas supply line 2
00 (note that a single destination may be used).

On the other hand, the gas compressor 1 driven by the Stirling engine 2 having the buffer space 3 can be operated by using a low-temperature heat source such as hot spring water, geothermal heat or waste heat. Etc. (for example, the position of G)
If the gas compression device 1 is provided and the compressed gas supply passage 17 of the gas compression device 1 is connected to the compressed gas supply line 200, the compressed gas can be supplied to the compressed gas supply line 200. Therefore, it is possible to suppress a decrease in the internal pressure of the compressed gas supply line 200 while effectively utilizing geothermal heat, waste heat, and the like, and to reduce the size of the main compression device 100 and reduce energy consumption.

It should be noted that heat sources such as geothermal and waste heat are more difficult to transport and store than energy sources such as electricity, fossil fuels and natural gas, and cannot be used effectively at present. According to the gas compression device 1 using the Stirling engine 2 using a heat source as an energy source as in the present embodiment,
Heat sources such as geothermal heat and waste heat can be used effectively. Meanwhile, the main compression device 100 may be a gas compression device using a Stirling engine using a heat source as an energy source and a driving source (power source).

Even without the buffer space 3, a gas compression device driven by a Stirling engine using a low-temperature heat source such as geothermal heat or waste heat as an energy source is disposed in a place where a heat source such as geothermal heat or waste heat exists. The provision of the compressed gas from the gas compression device to the compressed gas supply line 200 is effective as a new compressed gas supply system.

That is, a gas compression device driven by a Stirling engine using a low-temperature heat source such as geothermal heat or waste heat as an energy source is disposed at a place where a heat source such as geothermal heat or waste heat is present.
It is also within the scope of the present invention to supply a compressed gas from the gas compression device to the compressed gas supply line 200. (v) As the gas 4, for example, helium or hydrogen having a small flow resistance and a small molecular weight can be used. However, in the Stirling engine 2 according to the present embodiment, it is sufficient to use the atmosphere as the gas 4. Output can be extracted. In addition, if the gas 4 is the atmosphere, there is no danger even if there is a gas leak, etc., it is extremely easy to obtain, no cost is required, and the applicability of the gas compression device according to the present embodiment is greatly expanded. be able to.

Next, a second embodiment of the present invention will be described. The gas compression device 1A according to the second embodiment includes:
The configuration is as shown in FIG. Note that the same components as those of the gas compression device 1 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted, and only the portions different in configuration from the gas compression device 1 according to the first embodiment will be described. It will be explained.

That is, in the gas compressor 1A according to the second embodiment, as shown in FIG.
The crankshaft for reciprocating the piston 12 is shared with the crankshaft 5 of the Stirling engine 2,
The crankshaft 13 of the compressor 10 described in the first embodiment is omitted. And the piston 12
The piston rod 19 connecting the shaft and the crankshaft 5 moves only in the vertical direction in FIG.
(Reciprocating).

The piston rod 19 and the pressure vessel 8
In order to ensure the airtightness of the pressure vessel 8, a shaft seal or the like is interposed therebetween. With such a configuration, the operation and effect in the first embodiment, that is, the above (i) to (v)
And the simplification of the configuration of the gas compression device can be further promoted.

Next, a third embodiment of the present invention will be described. The gas compression device 1B according to the third embodiment includes:
The configuration is as shown in FIG. Note that the same components as those of the gas compression device 1 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted, and only the portions different in configuration from the gas compression device 1 according to the first embodiment will be described. It will be explained.

That is, in the gas compressor 1B according to the third embodiment, as shown in FIG.
Piston rod 2 for reciprocating the piston 12
0 is shared with a piston rod for reciprocating the displacer 6 of the Stirling engine 2,
The crankshaft 13 of the compressor 10 described in the second embodiment and the mechanism X described in the second embodiment are omitted.

The piston rod 20 and the pressure vessel 8
In order to secure the airtightness of the pressure vessel 8, a shaft seal or the like is interposed therebetween. With this configuration, the operation and effect of the first embodiment, that is, the operation and effects described in the above (i) to (v) can be obtained, and the configuration of the gas compression device can be further simplified. Can be promoted.
That is, the crankshaft for the compressor 10B and the mechanism X for converting the rotational motion of the crankshaft into the reciprocating motion of the piston 12 can be omitted.

Next, a fourth embodiment of the present invention will be described. Gas compressor 1C according to the fourth embodiment
Has a configuration as shown in FIG. Note that the same components as those of the gas compression device 1 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted, and only the portions different in configuration from the gas compression device 1 according to the first embodiment will be described. It will be explained.

That is, in the gas compressor 1C according to the fourth embodiment, as shown in FIG.
Piston rod 2 for reciprocating the piston 12
0 is shared with a piston rod for reciprocating the displacer 6 of the Stirling engine 2 as in the third embodiment, and the lower end of the cylinder 14C of the compressor 10C is shut off from outside air. It is attached so as to open to the buffer space 3 (inside the pressure vessel 8).

The crankshaft 13 of the compressor 10 described in the first embodiment and the mechanism X described in the second embodiment are omitted, and the piston rod 19 and the pressure vessel 8 in the third embodiment are omitted. And the shaft seal and the like interposed between them are omitted. With this configuration, the operation and effect of the first embodiment, that is, the operation and effects described in the above (i) to (v) can be obtained, and the configuration of the gas compression device can be further simplified. Can be promoted. That is, the crankshaft of the compressor, the mechanism X for converting the rotational motion of the crankshaft into the reciprocating motion of the piston 12, the shaft seal, and the like can be omitted.

In addition, the cylinder 1 of the compressor 10C
The lower end of 4C is buffer space 3 while being shielded from outside air.
(Inside the pressure vessel 8), the high-pressure gas 4 can act on the back surface of the piston 12 (the lower side surface of the piston 12 in FIG. 5). Clearance to 14 (Piston 12 is usually provided with a piston ring)
Since the amount of gas 4 leaked from the compressor can be reduced, the compression efficiency of the compressor 10C can be improved.

The piston 12 of the compressor 10C
Leakage of the gas 4 from the gap between the cylinder and the cylinder 14 (the piston 12 is usually provided with a piston ring) can be reduced. There may be danger,
Such a danger can be avoided. By the way, in each of the above embodiments, the displacer type Stirling engine has been described. However, the present invention is not limited to this, and is applicable to an α type (L type) Stirling engine. The displacer 6 described in each of the above embodiments can be considered to correspond to a piston for extracting a pressure change of a working gas in an α-type (L-type) Stirling engine as an output from a crankshaft.

[0047]

According to the gas compression apparatus of the first aspect of the present invention, the following effects can be obtained with this configuration. That is, when the Stirling engine is started, the compressed gas can be automatically supplied (introduced) to the buffer space. Therefore, it is possible to eliminate the troublesome process of filling the buffer space with a high-pressure gas from the outside and eliminate the trouble of the Stirling engine. The average pressure Pm (so-called buffer pressure) of the working gas can be automatically increased to a predetermined pressure.
That is, it is possible to increase the output of the Stirling engine, improve fuel efficiency, and the like while eliminating the troublesome process of filling the buffer space with high-pressure working gas from the outside.

Further, as long as the Stirling engine is operated and the gas compressor is operated, the compressed gas can always be replenished in the buffer space. And maintenance free. Also, with this,
Compared with the related art, the buffer space does not need to have a highly sealed structure, which can be extremely advantageous in terms of technology and cost.

Further, since the buffer space communicates with the compressed gas supply passage, the buffer space can function as a storage space for the compressed gas. It can be used as a receiver tank necessary for achieving a stable gas supply as described above. In other words, since there is no need to provide a separate receiver tank in the compressed gas supply system, it is possible to promote downsizing, cost reduction, and the like of the system.

According to the second aspect of the present invention, the first aspect is provided.
In addition to achieving the same effects as the invention described in (1), a general, simple, and highly reliable reciprocating compressor can be operated using the crankshaft rotation of the Stirling engine. Therefore, simplification of the configuration and cost reduction can be promoted while maintaining high reliability of the present apparatus.

According to the invention described in claim 3, according to claim 1
In addition to having the same effect as the invention described in the above, the crankshaft of the Stirling engine is shared as it is as the crankshaft of the reciprocating compressor,
The crankshaft of the reciprocating compressor can be omitted,
Thus, simplification of the configuration and cost reduction can be further promoted while maintaining high reliability of the present apparatus.

According to the fourth aspect of the present invention, the first aspect is provided.
In addition to achieving the same effects as the invention described in (1), the reciprocating part of the reciprocating compressor reciprocates with the reciprocating movement of the reciprocating part of the Stirling engine. It is possible to omit a shaft, a mechanism for converting the rotation of the crankshaft into a reciprocating part of the reciprocating compressor, and the like. Therefore, simplification of the configuration and cost reduction can be further promoted while maintaining high reliability of the present apparatus.

According to the invention described in claim 5, claim 1 is provided.
In addition to achieving the same effects as the invention described in (1), a high-pressure gas can be applied to the piston back surface of the reciprocating compressor, so that the back pressure increases so that Since the amount of gas leakage from the gap between the piston and the cylinder can be reduced, the compression efficiency of the reciprocating compressor can be improved. In addition, since gas leakage to the outside can be reduced, there is a case where there is a danger due to gas leakage depending on the reduction of noise and the type of gas used. However, such a danger can be avoided.

According to the sixth aspect of the present invention, there is no danger even if there is a gas leak, etc., it is extremely easy to obtain, no cost is required, and the applicability of the gas compressor according to the present invention is greatly increased. Can be expanded to: According to the compressed gas supply system according to the seventh aspect of the present invention, it is possible to provide a compressed gas supply system that effectively utilizes a heat source such as geothermal heat or waste heat.

According to the invention of claim 8, according to claim 7,
In addition to the effects of the invention described in (1), the effects of the invention described in claims 1 to 6 can also be exerted at the same time.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a gas compression device according to a first embodiment of the present invention.

FIG. 2 is an overall configuration diagram of a compressed gas supply system including the gas compression device in the embodiment.

FIG. 3 is an overall configuration diagram of a gas compression device according to a second embodiment of the present invention.

FIG. 4 is an overall configuration diagram of a gas compression device according to a third embodiment of the present invention.

FIG. 5 is an overall configuration diagram of a gas compression device according to a fourth embodiment of the present invention.

FIG. 6 is a configuration diagram of a conventional displacer type Stirling engine.

FIG. 7 is a configuration diagram of a conventional α-type (L-type) Stirling engine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas compressor 2 Stirling engine 3 Buffer space 4 Gas (working gas) 5 Crankshaft 6 Displacer 7 Power piston 8 Pressure vessel 9 Shaft seal 10 Compressor 11 Compressed gas introduction passage 12 Piston (for compressor) 13 Crankshaft (for compressor) 14 Cylinder (for compressor) 15 One-way valve (intake side) 16 One-way valve (discharge side) 17 Compressed gas supply passage C Cooler R Regenerative heat exchanger H Heater 100 Main compressor 200 Compressed gas supply line

Claims (8)

[Claims] 1. A gas compression apparatus driven by a Stirling engine including a buffer space, wherein a compressed gas is supplied from a compressed gas supply passage for supplying compressed gas sucked from the outside to a use destination. A portion of the gas compression device is guided to the buffer space. 2. The gas compressor according to claim 1, wherein said gas compressor compresses gas via a reciprocating compressor. 3. The gas compressor according to claim 2, wherein a crankshaft of said reciprocating compressor is shared with a crankshaft of said Stirling engine. 4. The gas compressor according to claim 2, wherein the reciprocating part of the reciprocating compressor is reciprocated through the reciprocating movement of the reciprocating part of the Stirling engine. 5. The piston back of said reciprocating compressor,
The gas compression device according to claim 2 or 3, wherein the gas compression device faces a buffer space of the Stirling engine. 6. The gas compression device according to claim 1, wherein the gas compression device is an air compression device. 7. When a heat source is located near a compressed gas supply line for supplying a compressed gas to a compressed gas supply destination separated from the gas compression device, a Stirling engine using the heat source as an energy source is used as a drive source. A compressed gas supply system, wherein a gas compression device is provided near the heat source, and gas compressed by the gas compression device is supplied to the compressed gas supply line. 8. The gas compression device according to claim 1, wherein the gas compression device using a Stirling engine using the heat source as an energy source as a driving source is the gas compression device according to any one of claims 1 to 6. Item 8. A compressed gas supply system according to Item 7.