JP7068030B2 - Compressor system - Google Patents

Description

The present invention relates to a compressor system.

The compressor is provided with a compression unit that compresses the fluid in the housing. A pressure vessel such as an oil pod, an accumulator, or an oil separator for storing lubricating oil may be provided outside the housing of such a compressor.

Patent Document 1 discloses a configuration in which a pressure vessel such as an accumulator or an oil pod is provided outside the housing of the compressor. Each of these pressure vessels is fixed to the outer peripheral surface of the compressor housing via a bracket. Further, the pressure vessel and the compressor are connected via a pipe through which a refrigerant, oil, or the like flows.

Japanese Unexamined Patent Publication No. 2017-180275

By the way, when the compressor operates, the vibration of the compressor is transmitted to the pressure vessel via the bracket. Depending on the natural value (natural frequency) of the pressure vessel, vibration (resonance) in a mode in which the end of the pressure vessel vibrates significantly may occur due to the vibration transmitted from the compressor. When such vibration occurs, a load is applied to the pipe connecting the pressure vessel and the compressor, and the pipe may be damaged.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a compressor system capable of suppressing vibration generated in a pressure vessel due to vibration of the compressor.

The present invention employs the following means in order to solve the above problems.
The compressor system according to the first aspect of the present invention includes a compressor having a compression portion for compressing a fluid and a housing for accommodating the compression portion, a cylinder portion extending in the vertical direction along with the compressor, and a cylinder portion extending in the vertical direction. A pressure vessel having a bottom that closes the lower end of the cylinder, a fixing portion that fixes the cylinder of the pressure vessel to the outer surface of the housing, and one end connected to the housing and the other end of the bottom of the pressure vessel. The base member comprises a pipe connected to the compressor and a base member that supports the bottom of the compressor and the pressure vessel and has a higher rigidity than the pipe .
It has an outer leg portion fixed to the housing and supporting the compressor, and a bracket fixed to the bottom portion of the pressure vessel and connected to the outer leg portion, and the bracket has a plate shape. It has a bent portion bent between a first fixing portion fixed to the pressure vessel and a second fixing portion connected to the outer leg portion .

With such a configuration, the cylinder portion of the pressure vessel is fixed to the housing by the fixing portion, and the bottom portion is supported by the base member. As a result, the pressure vessel can be firmly fixed to the compressor at positions separated in the vertical direction. Therefore, the vibration of the compressor is less likely to be transmitted to the pressure vessel.
Further, the pressure vessel is indirectly connected to the compressor via a plurality of members of the bracket and the outer leg portion. As a result, the vibration transmitted from the compressor to the pressure vessel is further damped by the base member. As a result, the vibration transmitted to the pressure vessel is further suppressed.
In addition, the rigidity of the bracket is increased.

Further, in the compressor system according to another aspect of the present invention, the outer leg portion is positioned apart from the outer leg portion main body fixed to the lower portion of the housing and the housing when viewed from the vertical direction. The bracket may have a reinforcing rib connected to the outer peripheral portion of the outer leg portion main body, and the bracket may be fixed to the reinforcing rib.

With such a configuration, the pressure vessel can be supported more firmly. This makes it possible to suppress the vibration generated in the pressure vessel due to the vibration of the compressor.

Further, in the compressor system according to another aspect of the present invention, the bracket may be welded to the outer leg portion.

With such a configuration, the fixing between the bracket and the outer leg can be strengthened, and the pressure vessel can be supported more stably.

Further, in the compressor system according to another aspect of the present invention, the bracket may be made of the same material as the outer leg portion and may have the same plate thickness.

With such a configuration, the rigidity between the bracket and the outer leg can be made close to each other.
When the rigidity of the bracket is lower than that of the base member, the vibration of the compressor is transmitted, so that the bracket is likely to vibrate. Further, when the rigidity of the base member is lower than that of the bracket, the vibration of the compressor is transmitted, so that the base member tends to vibrate. However, by bringing the rigidity of the bracket and the outer leg closer to each other, it is possible to suppress the occurrence of vibration in the bracket or the outer leg.

Further, in the compressor system according to another aspect of the present invention, the base member is fixed to the bottom of the pressure vessel at a position where at least a part of the center of gravity of the pressure vessel overlaps when viewed from the vertical direction. It may have been done.

With such a configuration, it is possible to suppress the lower end portion where the amplitude of the vibration transmitted from the compressor via the fixed portion tends to be the largest in the pressure vessel. Therefore, the vibration generated in the pressure vessel can be efficiently suppressed.

According to the present invention, it is possible to suppress the vibration generated in the pressure vessel due to the vibration of the compressor.

It is sectional drawing of the compressor system which concerns on embodiment of this invention. FIG. 3 is a view of the compressor system shown in FIG. 1 as viewed from below. FIG. 3 is a cross-sectional view showing a joint portion between an outer leg portion and a bracket in the compressor system shown in FIG. 1.

The compressor system 10 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional view of a compressor system according to an embodiment of the present invention. FIG. 2 is a bottom view of the compressor system shown in FIG. FIG. 3 is a cross-sectional view showing a joint portion between the outer leg portion and the bracket in the compressor system shown in FIG.

In addition, in FIG. 1, as an example of the compressor 11, the following description will be given by taking the case where a closed type two-stage compressor is used as an example. As shown in FIG. 1, the compressor system 10 includes a compressor 11, a suction pipe 13, an accumulator 14, an oil pod (pressure vessel) 16, a pressure equalizing pipe 25, an oil supply pipe (pipe) 26, and the like. It has a base member 32.

The compressor 11 includes a housing 31, a rotary shaft 33, a discharge pipe 40, an electric motor 42, a rotary compression unit (compression unit) 43, a scroll compression unit (compression unit) 44, and an injection pipe 45. Has.

The housing 31 extends in the vertical direction Z along the axis Ax of the rotating shaft 33. In FIG. 1, the vertical direction Z indicates a vertical direction. The housing 31 has a cylindrical housing body 51, a housing upper lid 52 that closes an opening above the housing body 51, and a housing lower lid 53 that closes an opening below the housing body 51. The housing 31 partitions an internal space 31A extending in the vertical direction Z. Oil (lubricating oil) A is accumulated from the lower part of the housing body 51 to the bottom of the lower lid portion 53 of the housing to form an oil sump O1.

The rotating shaft 33 is housed in the housing 31. The rotation shaft 33 is arranged in the internal space 31A so that the extending direction of the axis Ax is the vertical direction Z. The rotating shaft 33 is supported by a bearing fixed to the housing 31 so as to be rotatable around the axis Ax.

A part of the discharge pipe 40 is arranged inside the housing 31, and the rest is arranged outside the housing 31. The discharge pipe 40 penetrates the housing upper lid portion 52. One end of the discharge pipe 40 reaches a space where the refrigerant compressed by the scroll compression unit 44 (for example, a fluid such as a gas such as carbon dioxide) is discharged. The other end of the discharge pipe 40 is arranged outside the housing 31. The discharge pipe 40 discharges the compressed refrigerant R containing the oil A to the outside of the housing 31.

The electric motor 42 is housed in the housing 31. The electric motor 42 is arranged between the rotary compression unit 43 and the scroll compression unit 44 in the vertical direction Z. A power source (not shown) is connected to the electric motor 42. The electric motor 42 rotates the rotating shaft 33 by the electric power from the power source.

The rotary compression portion 43 is provided in the lower part of the housing 31. The rotary compression unit 43 is arranged below the electric motor 42. The refrigerant R compressed by the rotary compression unit 43 is sent to the scroll compression unit 44.

The scroll compression unit 44 is housed in the housing 31 and is arranged above the electric motor 42. The refrigerant R compressed in the compression chamber B of the scroll compression unit 44 is discharged to the outside of the housing 31 via the discharge pipe 40.

The injection pipe 45 is a path for introducing the refrigerant R into the housing 31 from a supply source (not shown).

The accumulator 14 is provided outside the compressor 11 along with the housing 31. The accumulator 14 separates the liquid phase from the refrigerant R, and supplies the gas phase of the refrigerant R to the rotary compression unit 43 through the suction pipe 13. The accumulator 14 has a hollow accumulator main body 19 extending in the axis Ax2 direction, and a first ring bracket 15.

The accumulator main body 19 has a bottomed tubular shape so that the axis Ax2 extends in the vertical direction Z. The accumulator main body 19 is fixed to the outer peripheral surface of the housing main body 51 of the housing 31 via an annular first ring bracket 15.

The first ring bracket 15 is provided above the center position of the accumulator main body 19 in the vertical direction Z. The first ring bracket 15 has a first ring portion 15a continuous in the circumferential direction along the outer peripheral surface of the accumulator main body 19 and a first belt portion 15b.

The first ring portion 15a is bolted to the first stay 31s fixed to the outer peripheral surface of the housing body 51. The first belt portion 15b is made of a rubber material and is wound around the accumulator main body 19. The first ring portion 15a is attached to the accumulator main body 19 from above the first belt portion 15b.

The oil pod 16 is provided outside the compressor 11 along with the housing 31. The oil pod 16 is arranged on the opposite side of the accumulator 14 so as to sandwich the compressor 11 when viewed from the vertical direction Z. Oil A is stored in the oil pod 16. The oil pod 16 includes a hollow oil pod main body 80 extending around the axis Ax3, a second ring bracket (fixing portion) 18, an oil introduction pipe 20, a pressure equalizing pipe 25, and an oil supply pipe 26.

Although not shown in FIG. 1, the oil pod 16 may be provided with an oil supply source for supplying oil A from the outside of the compressor system 10.

The oil pod body 80 has a bottomed cylinder shape such that the axis Ax3 extends in the vertical direction Z. The oil pod main body 80 has a pod main body portion (cylinder portion) 81, a pod upper lid portion 82, and a pod lower lid portion (bottom portion) 83.

The pod main body 81 is a tubular member extending in the vertical direction Z along the axis Ax3. The upper and lower ends of the pod main body 81 are open. The pod upper lid portion 82 is fixed to the pod main body portion 81 so as to close the opening at the upper end of the pod main body portion 81. The pod lower lid portion 83 is fixed to the pod main body portion 81 so as to close the opening at the lower end of the pod main body portion 81. The pod upper lid portion 82 and the pod lower lid portion 83 are attached to the pod main body portion 81 by welding.

The pod main body 81 is fixed to the outer peripheral surface of the housing main body 51 of the housing 31 via an annular second ring bracket (fixing portion) 18.

The second ring bracket 18 is provided above the center position of the pod main body 81 in the vertical direction Z. The second ring bracket 18 has a second ring portion 18a continuous in the circumferential direction along the outer peripheral surface of the pod main body portion 81, and a second belt portion 18b.

The second ring portion 18a is bolted to the second stay 31t fixed to the outer peripheral surface of the housing body 51. The second belt portion 18b is made of the same rubber material as the first belt portion 15b, and is wound around the pod main body portion 81. The second ring portion 18a is attached to the pod main body portion 81 from above the second belt portion 18b.

The oil introduction pipe 20 is below the second ring bracket 18 and is provided near the center of the pod main body 81 in the vertical direction Z. The oil introduction pipe 20 is a pipe for introducing oil A into the oil pod 16.

The pressure equalizing pipe 25 is a pipe for keeping the internal pressure of the housing 31 and the internal pressure of the oil pot main body 80 in equilibrium. One end of the pressure equalizing pipe 25 communicates with the inside of the housing 31. The other end of the pressure equalizing pipe 25 is connected to the pod upper lid portion 82 so as to communicate with the oil pod 16.

The oil supply pipe 26 is connected to the housing 31 and the oil pod 16 in a state where the oil A stored in the lower portion of the housing 31 and the oil A stored in the oil pod 16 can flow to each other. One end of the oil supply pipe 26 is connected to the lower end of the housing 31 (specifically, the lower lid portion 53 of the housing). The other end of the oil supply pipe 26 is connected to the lower end of the oil pod 16 (specifically, the pod lower lid portion 83 described later). As a result, the oil supply pipe 26 communicates the inside of the housing 31 with the inside of the oil pod body 80. As the oil supply pipe 26, for example, a cylindrical pipe can be used.

As shown in FIGS. 1 to 3, the base member 32 is fixed to the outer peripheral surface of the housing lower lid portion 53 and the lower end of the pod lower lid portion 83. The base member 32 supports the compressor 11 from below and the oil pod 16 from below. The base member 32 has a higher rigidity than the oil supply pipe 26. The base member 32 has an outer leg portion 32a and a bracket 91.

The outer leg portion 32a is fixed to the compressor 11 and supports the compressor 11 with respect to the installation surface. The outer leg portion 32a has an outer leg portion main body 32m and a reinforcing rib 32r.

The outer leg main body 32m has a flat plate shape extending in a direction orthogonal to the axis Ax. As shown in FIGS. 2 and 3, the outer leg main body 32m has a substantially rectangular shape when viewed from the vertical direction Z. The outer leg main body 32m is formed with a through hole 32h having an inner diameter smaller than the outer diameter of the housing lower lid portion 53 in the central portion thereof when viewed from the vertical direction Z. The housing lower lid portion 53 has a hemispherical dome-shaped portion 53a that is curved so that its outer diameter gradually decreases downward. A dome-shaped portion 53a is inserted into the through hole 32h from above, and a part of the central portion thereof protrudes downward from the through hole 32h. The dome-shaped portion 53a is welded to the outer leg portion main body 32m at a plurality of points in the circumferential direction at a portion abutting against the inner peripheral edge of the through hole 32h. As a result, the outer leg body 32m is fixed to the housing 31. Rubber leg mounting holes 34 through which rubber legs (not shown) for mounting the compressor system 10 on the installation surface of the object to be mounted are inserted are formed at the four corners of the outer leg main body 32 m. Further, reinforcing ribs 32r are integrally formed on the four sides of the outer leg main body 32m.

The reinforcing rib 32r extends downward so as to be orthogonal to the outer leg main body 32m. The reinforcing rib 32r is connected to the outer peripheral portion of the outer leg portion main body 32m at a position separated from the housing 31 when viewed from the vertical direction Z.

The bracket 91 is fixed to the pod lower lid portion 83 and the outer leg portion 32a. The bracket 91 is a plate-shaped member formed of the same material and the same plate thickness as the outer leg portion 32a. The bracket 91 integrally includes a first fixing portion 91a, a second fixing portion 91b, and a bent portion 91c.

The first fixing portion 91a is joined to the pod lower lid portion 83 by welding. The first fixing portion 91a is welded to the lower surface of the pod lower lid portion 83 facing downward in the vertical direction Z at a position overlapping the central portion of the pod lower lid portion 83 through which the axis Ax3 passes when viewed from the vertical direction Z. Has been done. That is, the bracket 91 is arranged so as to overlap vertically below the center of gravity of the oil pod body 80.

The second fixing portion 91b is connected to the reinforcing rib 32r. The second fixing portion 91b and the reinforcing rib 32r are fastened by a fastening bolt 93 and joined by welding.

The bent portion 91c is curved so as to be bent at a substantially right angle between the first fixed portion 91a and the second fixed portion 91b.

When fixing the bracket 91 to the outer leg portion 32a, first, the bracket 91 and the reinforcing rib 32r are connected by a fastening bolt 93, and the bracket 91 is temporarily fixed in a state of being positioned with respect to the outer leg portion 32a. After that, the bracket 91 and the reinforcing rib 32r are welded and fixed in an immovable state.

Further, the bracket 91 is preferably formed as short as possible. As a result, the holding force of the oil pod body 80 is enhanced, and the vibration suppressing effect and the displacement suppressing effect in the rotation direction around the axis Ax3 are enhanced.

According to the compressor system 10 as described above, in the oil pod body 80, the upper pod body 81 is fixed to the housing 31 by the second ring bracket 18, and the lower pod lower lid 83 is supported by the base member 32. Has been done. As a result, the oil pod body 80 can be firmly fixed to the compressor 11 at a position separated in the vertical direction Z. Therefore, the vibration of the compressor 11 is less likely to be transmitted to the oil pod body 80. As a result, the vibration generated in the oil pod 16 due to the vibration of the compressor 11 can be suppressed. As a result, it is possible to suppress damage to the oil supply pipe 26 provided between the compressor 11 and the oil pod 16.

Further, the lower side of the oil pod body 80 is connected to the base member 32 placed on the installation surface via the rubber legs. As a result, the vibration transmitted from the compressor 11 to the oil pod body 80 is damped by the base member 32. In this way, it is possible to effectively suppress the vibration generated in the oil pod 16 due to the vibration of the compressor 11 and suppress the damage to the oil supply pipe 26 provided between the compressor 11 and the oil pod 16. Will be.

Further, the oil pod main body 80 is fixed to the outer leg portion 32a fixed to the compressor 11 via the bracket 91. As a result, the oil pod 16 is indirectly connected to the compressor 11 via a plurality of members of the bracket 91 and the outer leg portion 32a. As a result, the vibration transmitted from the compressor 11 to the oil pod body 80 is further damped by the base member 32. As a result, the vibration transmitted to the oil pod 16 is further suppressed.

Further, the bracket 91 has a bent portion 91c between the first fixing portion 91a joined to the oil pod main body 80 and the second fixing portion 91b joined to the base member 32. As a result, the rigidity of the bracket 91 is increased, and the oil pod body 80 can be supported more firmly.

Further, the bracket 91 is joined by welding to the portion of the reinforcing rib 32r having high rigidity in the base member 32. As a result, the fixing between the bracket 91 and the outer leg portion 32a is strengthened and the oil pod main body 80 is fixed as compared with the case where the bracket 91 is fixed to the outer leg portion main body 32m simply by fixing with only the fastening bolt 93. It can be supported more stably and firmly. As a result, the vibration generated in the oil pod 16 due to the vibration of the compressor 11 can be suppressed.

Further, the bracket 91 is welded after being connected to the reinforcing rib 32r by the fastening bolt 93. As a result, when the bracket 91 is connected to the reinforcing rib 32r, the bracket 91 can be temporarily fixed in a state of being positioned on the reinforcing rib 32r by the fastening bolt 93. Therefore, welding of the bracket 91 and the reinforcing rib 32r can be easily and surely performed.

Further, the bracket 91 is made of the same material and the same plate thickness as the outer leg portion 32a. As a result, the rigidity of the bracket 91 can be brought close to the rigidity of the outer leg portion 32a. Therefore, the vibration in the bracket 91 can be suppressed to the maximum.

Further, in the oil pod main body 80, the bracket 91 is fixed at a position overlapping the center of gravity of the oil pod main body 80 at the lower end of the pod lower lid portion 83 farthest in the vertical direction Z with respect to the second ring bracket 18. Therefore, it is possible to suppress the lower end portion where the amplitude of the vibration transmitted from the compressor 11 via the second ring bracket 18 tends to be the largest in the oil pod main body 80. Therefore, the vibration generated in the oil pod body 80 can be efficiently suppressed.

Further, the bracket 91 has the same material and the same plate thickness as the outer leg portion 32a. As a result, the rigidity of the bracket 91 and the outer leg portion 32a can be brought close to each other. Further, it is preferable to set the material, the plate thickness, and the like so that the bracket 91 and the outer leg portion 32a have the same rigidity (second moment of inertia). When the rigidity of the bracket 91 is lower than that of the outer leg portion 32a, the vibration of the compressor 11 is transmitted, so that the bracket 91 is likely to vibrate. Further, when the rigidity of the outer leg portion 32a is lower than that of the bracket 91, vibration is likely to occur in the outer leg portion 32a due to the transmission of the vibration of the compressor 11. However, by bringing the rigidity of the bracket 91 and the outer leg portion 32a closer to each other, it is possible to suppress the occurrence of vibration on one side of the bracket and the outer leg portion.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the configurations and combinations thereof in each embodiment are examples, and the configurations may be added or omitted within a range not deviating from the gist of the present invention. , Replacements, and other changes are possible. Further, the present invention is not limited to the embodiments, but only to the scope of claims.

For example, in the above embodiment, the oil pod body 80 is connected to the base member 32 via the bracket 91, but the oil pod body 80 may be directly fixed to the base member 32 without the bracket 91. good.

Further, only the compressor 11 and the oil pod 16 are connected to the base member 32 of the compressor 11, but the structure is not limited to this. For example, the accumulator 14 may be used as another pressure vessel, and the compressor 11 and the accumulator 14 may be fixed to the base member 32 as in the case of the oil pod 16.

10 Compressor system 11 Compressor 13 Suction pipe 14 Accumulator 15 First ring bracket 15a First ring part 15b First belt part 16 Oil pod 18 Second ring bracket (fixed part)
18a Second ring part 18b Second belt part 19 Accumulator body 20 Oil introduction pipe 25 Pressure equalizing pipe 26 Oil supply pipe (piping)
31 Housing 31A Internal space 31s First stay 31t Second stay 32 Base member 32a Outer leg part 32m Outer leg part main body 32h Through hole 32r Reinforcing rib 33 Rotating shaft 34 Rubber leg mounting hole 40 Discharge pipe 42 Electric motor 43 Rotary compression part ( Compressed part)
44 Scroll compression section (compression section)
45 Injection pipe 51 Housing body 52 Housing upper lid 53 Housing lower lid 53a Dome-shaped 80 Oil pod body 81 Pod body (cylinder)
82 Pod top lid 83 Pod bottom lid (bottom)
91 Bracket 91a First fixing part 91b Second fixing part 91c Bent part 93 Fastening bolt A Oil Ax Axial line (central axis)
Ax2 Ax3 Ax3 Ax3 B Compression chamber R Refrigerant (fluid)

Claims (8)

A compressor having a compression unit for compressing the fluid and a housing for accommodating the compression unit, and a compressor.
A pressure vessel provided alongside the compressor and having a tubular portion extending in the vertical direction and a bottom portion that closes the lower end of the tubular portion.
A fixing portion for fixing the cylinder portion of the pressure vessel to the outer surface of the housing, and a fixing portion.
A pipe with one end connected to the housing and the other end connected to the bottom of the pressure vessel.
A base member that supports the bottom of the compressor and the pressure vessel and has a higher rigidity than the piping is provided .
The base member is
An outer leg portion fixed to the housing and supporting the compressor,
It has a bracket fixed to the bottom of the pressure vessel and connected to the outer leg.
The bracket is
It has a plate shape
A compressor system having a bent portion bent between a first fixing portion fixed to the pressure vessel and a second fixing portion connected to the outer leg portion . A compressor having a compression unit for compressing the fluid and a housing for accommodating the compression unit, and a compressor.
A pressure vessel provided alongside the compressor and having a tubular portion extending in the vertical direction and a bottom portion that closes the lower end of the tubular portion.
A fixing portion for fixing the cylinder portion of the pressure vessel to the outer surface of the housing, and a fixing portion.
A pipe with one end connected to the housing and the other end connected to the bottom of the pressure vessel.
A base member that supports the bottom of the compressor and the pressure vessel and has a higher rigidity than the piping is provided.
The base member is
An outer leg portion fixed to the housing and supporting the compressor,
It has a bracket fixed to the bottom of the pressure vessel and connected to the outer leg.
The outer leg is
The outer leg body fixed to the lower part of the housing and
It has a reinforcing rib connected to the outer peripheral portion of the outer leg portion main body at a position separated from the housing when viewed from the vertical direction.
The bracket is a compressor system fixed to the reinforcing rib. A compressor having a compression unit for compressing the fluid and a housing for accommodating the compression unit, and a compressor.
A pressure vessel provided alongside the compressor and having a tubular portion extending in the vertical direction and a bottom portion that closes the lower end of the tubular portion.
A fixing portion for fixing the cylinder portion of the pressure vessel to the outer surface of the housing, and a fixing portion.
A pipe with one end connected to the housing and the other end connected to the bottom of the pressure vessel.
A base member that supports the bottom of the compressor and the pressure vessel and is stiffer than the piping.
The base member is
An outer leg portion fixed to the housing and supporting the compressor,
It has a bracket fixed to the bottom of the pressure vessel and connected to the outer leg.
The bracket is a compressor system welded to the outer leg. The outer leg is
The outer leg body fixed to the lower part of the housing and
It has a reinforcing rib connected to the outer peripheral portion of the outer leg portion main body at a position separated from the housing when viewed from the vertical direction.
The compressor system according to claim 1 , wherein the bracket is fixed to the reinforcing rib. The compressor system according to claim 1 or 2 , wherein the bracket is welded to the outer leg portion. The compressor system according to any one of claims 1 to 5, wherein the bracket is made of the same material as the outer leg portion and has the same plate thickness. A compressor having a compression unit for compressing the fluid and a housing for accommodating the compression unit, and a compressor.
A pressure vessel provided alongside the compressor and having a tubular portion extending in the vertical direction and a bottom portion that closes the lower end of the tubular portion.
A fixing portion for fixing the cylinder portion of the pressure vessel to the outer surface of the housing, and a fixing portion.
A pipe with one end connected to the housing and the other end connected to the bottom of the pressure vessel.
A base member that supports the bottom of the compressor and the pressure vessel and is stiffer than the piping.
The base member is
An outer leg portion fixed to the housing and supporting the compressor,
It has a bracket fixed to the bottom of the pressure vessel and connected to the outer leg.
A compressor system in which the bracket is made of the same material as the outer leg and has the same plate thickness. According to any one of claims 1 to 7 , the base member is fixed to the bottom of the pressure vessel at a position where at least a part of the center of gravity of the pressure vessel overlaps when viewed from the vertical direction. The described compressor system.

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