CN105020179A - Axial flow compressor - Google Patents
Axial flow compressor Download PDFInfo
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- CN105020179A CN105020179A CN201410163388.7A CN201410163388A CN105020179A CN 105020179 A CN105020179 A CN 105020179A CN 201410163388 A CN201410163388 A CN 201410163388A CN 105020179 A CN105020179 A CN 105020179A
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- outlet housing
- fluid
- axial flow
- flow compressor
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Abstract
The invention provides an axial flow compressor which can restrain pressure loss at low cost. The axial flow compressor (1A) is provided a fluid compression part (20) compressing fluid, a pressure expander (30) for circulating compressed fluid, an outlet shell (40) which is in a hollow ring shape and used for circulating the compressed fluid, and a compressed fluid discharging pipe (50) discharging the compressed fluid conveyed from the outlet shell in the radial direction. The fluid compression part (20) is provided with a central shell (21) with static blades (21a) and a rotor (22) with dynamic blades (22a). At the end of the side, opposite to the rotor, in the outlet shell, the pressure expander enables the fluid to flow to the radial outer side of the outlet shell. An annular horn-shaped part (60A) is arranged in the outlet shell (40), and the cross section of the annular horn-shaped part becomes smaller while the annular horn-shaped part advances from the position, along the upstream side of the rotating direction of the rotor, of the joint of the outlet shell and the compressed fluid discharging pipe to the rotating direction of the rotator.
Description
Technical field
The present invention relates to axial flow compressor.
Background technique
Within the compressor, make the outlet housing of the air circulation after for compression be formed as becoming large shape gradually along with compressed-air actuated converging, come thus to compress (with reference to patent documentation 1) air.This compressor can make compressed-air actuated flowing smooth and easy, thus can suppress the pressure loss.
Patent documentation 1: Japanese Patent Publication 3-123906 publication
On the other hand, in axial flow compressor, the shape for the outlet housing of the air circulation after compression is set to the size of fixing usually, if will apply the technology described in patent documentation 1 in such axial flow compressor, then needs to replace outlet housing.If replace outlet housing in the axial flow compressor that large component is usually more, then design, the manufacture of new outlet housing will spend cost, and are not easy to replace, and there is such problem: unwanted existing outlet housing can become waste product.
Summary of the invention
The present invention foundes to solve aforesaid problem, and its problem is to provide a kind of axial flow compressor that can suppress the pressure loss with lower cost.
In order to solve described problem, the feature of axial flow compressor of the present invention is to possess: suction casing, and it flows into for fluid; Fluid compression portion, it compresses the described fluid transported from described suction casing; Diffuser, it circulates for by the described fluid after the compression of described fluid compression portion; Outlet housing, it is hollow circular ring shape, for the described fluid circulation transported from described Diffuser; With compressed fluid discharge tube, it is connected with described outlet housing, and the radial outside of the described fluid transported from described outlet housing to described outlet housing is discharged, described fluid compression portion possesses: central housing, and it has the stator blade erecting setting at internal surface; And rotor, it is arranged in described central housing, and there is at outer surface the movable vane erecting setting, wherein, the end of the side contrary with described rotor in described outlet housing, the shape that described Diffuser flows in the radial outside making described fluid to described outlet housing, the horn of ring-type is provided with in described outlet housing, along with the sense of rotation upstream side by described rotor at the position be connected with described compressed fluid discharge tube from described outlet housing advances to the sense of rotation of described rotor, the sectional area of described horn diminishes.
According to this structure, by arranging horn in the outlet housing of existing axial flow compressor, compressed-air actuated flowing can be made thus smooth and easy, thus the pressure loss can be suppressed with low cost.
Described axial flow compressor also can be configured to, described axial flow compressor also possesses distance member, at the sense of rotation upstream side by described rotor at the position that described outlet housing is connected with described compressed fluid discharge tube, described distance member blocks between described horn and described outlet housing, to cut off the flowing of described fluid along the circumference of described outlet housing.
In addition, also can be configured to, described horn is in shape as follows: at the sense of rotation upstream side by described rotor at the position that described outlet housing is connected with described compressed fluid discharge tube, described horn blocks described outlet housing, to cut off the flowing of described fluid along the circumference of described outlet housing.
In addition, in order to solve described problem, the feature of axial flow compressor of the present invention is to possess: suction casing, and it flows into for fluid, fluid compression portion, it compresses the described fluid transported from described suction casing, Diffuser, it circulates for by the described fluid after the compression of described fluid compression portion, outlet housing, it is hollow circular ring shape, for the described fluid circulation transported from described Diffuser, with compressed fluid discharge tube, it is connected with described outlet housing, and the radial outside of the described fluid transported from described outlet housing to described outlet housing is discharged, described fluid compression portion possesses: central housing, and it has the stator blade erecting setting at internal surface, and rotor, it is arranged in described central housing, and there is at outer surface the movable vane erecting setting, wherein, the end of the side contrary with described rotor in described outlet housing, the shape that described Diffuser flows in the radial outside making described fluid to described outlet housing, distance member is provided with in described outlet housing, at the sense of rotation upstream side by described rotor at the position that described outlet housing is connected with described compressed fluid discharge tube, described distance member blocks described outlet housing, to cut off the flowing of described fluid along the circumference of described outlet housing.
According to this structure, by arranging distance member in the outlet housing of existing axial flow compressor, compressed-air actuated flowing can be made thus smooth and easy, thus the pressure loss can be suppressed with low cost.
According to the present invention, can effectively utilize existing axial flow compressor, thus the pressure loss can be suppressed with low cost.
Accompanying drawing explanation
Fig. 1 is the sectional view schematically showing the axial flow compressor that the first mode of execution of the present invention relates to.
(a) and (b) of Fig. 2 is the figure of horn and the distance member arranged in the outlet housing for illustration of the axial flow compressor related at the first mode of execution of the present invention, a () is partial cross-sectional perspective view, (b) is the sectional view observed from the X1 direction of Fig. 1.
(a) ~ (c) of Fig. 3 is the figure of the sectional shape in the outlet housing that relates to for illustration of the first mode of execution of the present invention, a () is the sectional view observed from the X2 direction of Fig. 2, b () is the sectional view observed from the X3 direction of Fig. 2, (c) is the sectional view observed from the X4 direction of Fig. 2.D () is the figure of the sectional shape in the outlet housing that relates to for illustration of comparative example.
Fig. 4 is the figure of the flowing of compressed fluid in the outlet housing of the axial flow compressor related to for illustration of the first mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.
Fig. 5 is the figure of the distance member arranged in the outlet housing for illustration of the axial flow compressor related at the second mode of execution of the present invention, and (a) is the stereogram that distance member is shown, (b) is the sectional view observed from the X1 direction of Fig. 1.
Fig. 6 is the figure of the flowing of compressed fluid in the outlet housing of the axial flow compressor related to for illustration of the second mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.
Fig. 7 is the figure of the horn arranged in the outlet housing for illustration of the axial flow compressor related at the 3rd mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.
Fig. 8 is the figure of the fixation method of the horn related to for illustration of the first mode of execution of the present invention, and is the sectional view observed from the X2 direction of Fig. 2.
Fig. 9 is the figure of the variation of the distance member related to for illustration of the second mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.
Label declaration
1A, 1B, 1C: axial flow compressor;
10: suction casing;
20: fluid compression portion;
21: central housing;
21a: stator blade;
22: rotor;
22a: movable vane;
30: Diffuser;
40: outlet housing;
50: compressed fluid discharge tube;
60A, 60C: horn;
70,80: distance member.
Embodiment
Below, suitably with reference to accompanying drawing, embodiments of the present invention are described.For the label that identical portion markings is identical, and the repetitive description thereof will be omitted.
(the first mode of execution)
First, referring to figs. 1 through Fig. 4, the axial flow compressor that the first mode of execution of the present invention relates to is described.Fig. 1 is the sectional view schematically showing the axial flow compressor that the first mode of execution of the present invention relates to.Fig. 2 is the figure of horn and the distance member arranged in the outlet housing for illustration of the axial flow compressor related at the first mode of execution of the present invention, a () is partial cross-sectional perspective view, (b) is the sectional view observed from the X1 direction of Fig. 1.(a) ~ (c) of Fig. 3 is the figure of the sectional shape in the outlet housing that relates to for illustration of the first mode of execution of the present invention, a () is the sectional view observed from the X2 direction of Fig. 2, b () is the sectional view observed from the X3 direction of Fig. 2, (c) is the sectional view observed from the X4 direction of Fig. 2.(d) of Fig. 3 is the figure of the sectional shape in the outlet housing that relates to for illustration of comparative example.Fig. 4 is the figure of the flowing of compressed fluid in the outlet housing of the axial flow compressor related to for illustration of the first mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.Further, in Fig. 2 and Fig. 4, Diffuser 30 is eliminated.
(basic structure of axial flow compressor 1A)
As shown in Figure 1, the axial flow compressor 1A that the first mode of execution of the present invention relates to possesses suction casing 10, fluid compression portion 20, Diffuser 30, outlet housing 40 and compressed fluid discharge tube 50.
Suction casing 10 is the hollow parts flowed into for fluid to be compressed, is also referred to as entrance scroll.In suction casing 10, the fluid of circulation is transferred toward fluid compression portion 20.
Fluid compression portion 20 compresses the fluid transported from suction casing 10, forms compressed fluid.The compressed fluid formed is transferred toward Diffuser 30.In more detail, fluid compression portion 20 possesses central housing 21 and rotor 22.
Central authorities' housing 21, in hollow cylinder shape, within it erects on the surface and is provided with multiple stator blade 21a.The upstream-side-end of central authorities' housing 21 is connected with suction casing 10, and the end of downstream side of central housing 21 is connected with outlet housing 40 via Diffuser 30.
Rotor 22 is located in central housing 21, and cylindrical shape.Erect at its outer surface and be provided with multiple movable vane 22a.Multiple movable vane 22a and described multiple stator blade 21a is arranged alternately in mode opposite one another, and the fluid transported from suction casing 10 circulates between these stator blades 21a and movable vane 22a.This rotor 22 is rotated by driving by the control of control gear (not shown).Rotated by the rotor 22 with movable vane 22a, make the fluid circulated between stator blade 21a and movable vane 22a be compressed thus, form compressed fluid.Control gear carries out drived control to stator blade changeable mechanism (not shown) and stator blade 21a is shifted, and controls the compression degree of compressed fluid thus.The compressed fluid formed is transferred toward Diffuser 30.
Diffuser 30 is the parts for the compressed fluid circulation formed.This Diffuser 30 is located at the radially inner side of outlet housing 40, the end of the side contrary with rotor 22 in outlet housing 40, and this Diffuser 30 is in the shape making compressed fluid to the radial outside flowing of outlet housing 40.That is, Diffuser 30 is in the parts from the upstream side taper expanding towards downstream side.In Diffuser 30, the compressed fluid of circulation is transferred toward outlet housing 40.
Outlet housing 40, in hollow circular ring shape, is the parts for the compressed fluid circulation transported from Diffuser 30, also referred to as outlet vortex part.In outlet housing 40, the compressed fluid of circulation is transferred toward compressed fluid discharge tube 50.
Compressed fluid discharge tube 50 is pipes of cylindrical shape, and compressed fluid discharge tube 50 is connected with outlet housing 40, is the pipe of the compressed fluid for transporting from outlet housing 40 to the radial outside discharge of outlet housing 40.In the present embodiment, compressed fluid discharge tube 50 is connected with the underpart of outlet housing 40, the compressed fluid transported is discharged downwards from outlet housing 40.
(horn 60A and distance member 70)
As depicted in figs. 1 and 2, the axial flow compressor 1A that the first mode of execution of the present invention relates to also possesses horn 60A and distance member 70.
Horn 60A is disposed near the outlet of the Diffuser 30 in outlet housing 40, as shown in (a) ~ (c) of Fig. 3, horn 60A is along with the upstream side of the sense of rotation R along rotor 22 at position be connected with compressed fluid discharge tube 50 from outlet housing 40 to advance the ring-shaped member making sectional area reduce to the sense of rotation R of rotor 22.This horn 60A is such as placed on distance member 70, and is fixed in Diffuser 30 by bolt.
Distance member 70 is plate-shaped members as follows: at the upstream side of the sense of rotation R along rotor 22 at the position that outlet housing 40 is connected with compressed fluid discharge tube 50, distance member 70 blocks between horn 60A and outlet housing 40, to cut off the flowing of compressed fluid along the circumference of outlet housing 40.This distance member 70 is such as fixed in outlet housing 40 by welding.
In addition, when not arranging horn 60A, as shown in (d) of Fig. 3, carry the pressurized air (arrow of (d) of Fig. 3) toward outlet housing 40 near the outlet of Diffuser 30, (meshing of (d) of Fig. 3) eddy current can be produced from Diffuser 30, thus produce the pressure loss.In contrast, the axial flow compressor 1A that the first mode of execution of the present invention relates to possesses horn 60A, therefore, it is possible to prevent from producing eddy current near the outlet of Diffuser 30, thus the pressure loss can be suppressed.
Dotted line in Fig. 4 is the flowing of the compressed fluid in the outlet housing 40 of the axial flow compressor 1A that the first mode of execution of the present invention relates to.The axial flow compressor 1A that first mode of execution of the present invention relates to possesses horn 60A, and the flow path shape of the compressed fluid in outlet housing 40 is configured to make sectional area become large along with the sense of rotation R to rotor 22 advances.Namely, in the axial flow compressor 1A that the first mode of execution of the present invention relates to, along with the sense of rotation R to rotor 22 advances, compressed-air actuated flow path shape and the compressed-air actuated amount converged correspondingly become large, therefore, it is possible to make compressed-air actuated flowing smooth and easy, thus the pressure loss can be suppressed.
In addition, the axial flow compressor 1A related to due to the first mode of execution of the present invention possesses distance member 70, therefore, it is possible to prevent pressurized air from flowing into from the left and right sides of Fig. 4 to pressurized air discharge tube 50, thus can suppress the pressure loss.
In addition, the axial flow compressor 1A that the first mode of execution of the present invention relates to can by arranging horn 60A and distance member 70 realizes in the outlet housing 40 of existing axial flow compressor, therefore, it is possible to suppress the pressure loss with low cost.
(the second mode of execution)
Next, for the axial flow compressor that the second mode of execution of the present invention relates to, with reference to Fig. 5 and Fig. 6, be described centered by the difference of the axial flow compressor 1A related to the first mode of execution.Fig. 5 is the figure of the distance member arranged in the outlet housing for illustration of the axial flow compressor related at the second mode of execution of the present invention, and (a) is the stereogram that distance member is shown, (b) is the sectional view observed from the X1 direction of Fig. 1.Fig. 6 is the figure of the flowing of compressed fluid in the outlet housing of the axial flow compressor related to for illustration of the second mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.Further, in (b) and Fig. 6 of Fig. 5, Diffuser 30 is eliminated.
As shown in Figure 5, the axial flow compressor 1B that the second mode of execution of the present invention relates to possesses distance member 80 to replace horn 60A and distance member 70.Distance member 80 is located in outlet housing 40, parts as follows: at the upstream side of the sense of rotation along rotor 22 at the position that outlet housing 40 is connected with compressed fluid discharge tube 50, distance member 80 blocks outlet housing 40, to cut off the flowing of compressed fluid along the circumference of outlet housing 40.This distance member 80 is such as fixed in outlet housing 40 by welding.
Axis along rotor 22 is observed, and distance member 80 is in the taper expanded from radially inner side to radial outside.The radially inner side end 81 of distance member 80 abuts with the underpart of Diffuser 30, and a side 82 of the radial outside end of distance member 80 is connected to the connection part of outlet housing 40 and compressed fluid discharge tube 50.In addition, the link radially inner side end 81 of distance member 80 is spill with the limit of the limit of a side 82 of radial outside end and the link radially inner side end 81 of distance member 80 and the opposing party 83 of radial outside end respectively.By making two of distance member 80 limits be formed as such shape, can make thus pressurized air to the flowing of circumference of outlet housing 40 and flowing to compressed fluid discharge tube 50 smooth and easy.
Dotted line in Fig. 6 is the flowing of the compressed fluid in the outlet housing 40 of the axial flow compressor 1B that the second mode of execution of the present invention relates to.The axial flow compressor 1B related to due to the second mode of execution of the present invention possesses distance member 80, therefore, it is possible to prevent pressurized air from flowing into from the left and right sides of Fig. 6 to pressurized air discharge tube 50, thus can suppress the pressure loss.
In addition, the axial flow compressor 1B that the second mode of execution of the present invention relates to can realize by arranging distance member 80 in the outlet housing 40 of existing axial flow compressor, therefore, it is possible to suppress the pressure loss with low cost.
(the 3rd mode of execution)
Next, for the axial flow compressor that the 3rd mode of execution of the present invention relates to, with reference to Fig. 7, be described centered by the difference of the axial flow compressor 1A related to the first mode of execution.Fig. 7 is the figure of the horn arranged in the outlet housing for illustration of the axial flow compressor related at the 3rd mode of execution of the present invention, and is the sectional view observed from the X1 direction of Fig. 1.Further, Diffuser 30 is eliminated in the figure 7.
As shown in Figure 7, the axial flow compressor 1C that the 3rd mode of execution of the present invention relates to possesses horn 60C to replace horn 60A and distance member 70.Horn 60C is different from the horn 60A that the first mode of execution relates to, it is following such shape: at the upstream side of the sense of rotation R along rotor 22 at the position that outlet housing 40 is connected with compressed fluid discharge tube 50, horn 60C blocks outlet housing 40, to cut off the flowing of compressed fluid along the circumference of outlet housing 40.This horn 60C is such as fixed in Diffuser 30 by bolt.
The axial flow compressor 1C related to due to the 3rd mode of execution of the present invention possesses horn 60C, this horn 60C is at the most upstream portion blocking outlet housing 40 of the sense of rotation R along rotor 22 at the position that outlet housing 40 is connected with compressed fluid discharge tube 50, therefore, do not need distance member 70, thus the effect identical with the axial flow compressor 1A that the first mode of execution relates to can be played while minimizing number of components.
In addition, the axial flow compressor 1C that the 3rd mode of execution of the present invention relates to can by arranging horn 60C to realize in the outlet housing 40 of existing axial flow compressor, therefore, it is possible to suppress the pressure loss with low cost.
Above, embodiments of the present invention are illustrated, but the present invention is not limited to described mode of execution, suitably can carries out design alteration without departing from the spirit and scope of the invention.Such as, in the axial flow compressor 1A that the first mode of execution relates to, distance member 70 can be omitted.In addition, the material of horn 60A, 60C and distance member 70,80 can suitably change.In addition, about horn 60A, 60C, in order to weight reduction, it can be made to be formed as hollow shape.
In addition, about the fixation method of horn 60A relative to Diffuser 30, as shown in Figure 8, the shape of horn 60A can be made to be formed as along the such shape in the end of Diffuser 30, to be screwed together in via the penetration hole being formed at Diffuser 30 in the tapped hole formed on horn 60A by making bolt B, horn 60A can be fixed on Diffuser 30 thus.
In addition, about distance member 80, as shown in Figure 9, also the profile identical with the distance member 80 shown in Fig. 5 can be formed by being combined by 2 plate-shaped members 80a, 80b in curve form.
Claims (4)
1. an axial flow compressor,
Described axial flow compressor possesses:
Suction casing, it flows into for fluid;
Fluid compression portion, it compresses the described fluid transported from described suction casing;
Diffuser, it circulates for by the described fluid after the compression of described fluid compression portion;
Outlet housing, it is hollow circular ring shape, for the described fluid circulation transported from described Diffuser; With
Compressed fluid discharge tube, it is connected with described outlet housing, and is discharged by the radial outside of the described fluid transported from described outlet housing to described outlet housing,
Described fluid compression portion possesses:
Central authorities' housing, it has the stator blade erecting setting at internal surface; With
Rotor, it is arranged in described central housing, and has the movable vane erecting setting at outer surface,
The feature of described axial flow compressor is,
The end of the side contrary with described rotor in described outlet housing, the shape that described Diffuser flows in the radial outside making described fluid to described outlet housing,
The horn of ring-type is provided with in described outlet housing, along with the sense of rotation upstream side by described rotor at the position be connected with described compressed fluid discharge tube from described outlet housing advances to the sense of rotation of described rotor, the sectional area of described horn diminishes.
2. axial flow compressor according to claim 1, is characterized in that,
Described axial flow compressor also possesses distance member, at the sense of rotation upstream side by described rotor at the position that described outlet housing is connected with described compressed fluid discharge tube, described distance member blocks between described horn and described outlet housing, to cut off the flowing of described fluid along the circumference of described outlet housing.
3. axial flow compressor according to claim 1, is characterized in that,
Described horn is in shape as follows: at the sense of rotation upstream side by described rotor at the position that described outlet housing is connected with described compressed fluid discharge tube, described horn blocks described outlet housing, to cut off the flowing of described fluid along the circumference of described outlet housing.
4. an axial flow compressor,
Described axial flow compressor possesses:
Suction casing, it flows into for fluid;
Fluid compression portion, it compresses the described fluid transported from described suction casing;
Diffuser, it circulates for by the described fluid after the compression of described fluid compression portion;
Outlet housing, it is hollow circular ring shape, for the described fluid circulation transported from described Diffuser; With
Compressed fluid discharge tube, it is connected with described outlet housing, and is discharged by the radial outside of the described fluid transported from described outlet housing to described outlet housing,
Described fluid compression portion possesses:
Central authorities' housing, it has the stator blade erecting setting at internal surface; With
Rotor, it is arranged in described central housing, and has the movable vane erecting setting at outer surface,
The feature of described axial flow compressor is,
The end of the side contrary with described rotor in described outlet housing, the shape that described Diffuser flows in the radial outside making described fluid to described outlet housing,
Distance member is provided with in described outlet housing, at the sense of rotation upstream side by described rotor at the position that described outlet housing is connected with described compressed fluid discharge tube, described distance member blocks described outlet housing, to cut off the flowing of described fluid along the circumference of described outlet housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163388.7A CN105020179A (en) | 2014-04-22 | 2014-04-22 | Axial flow compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163388.7A CN105020179A (en) | 2014-04-22 | 2014-04-22 | Axial flow compressor |
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| CN105020179A true CN105020179A (en) | 2015-11-04 |
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ID=54410394
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| CN201410163388.7A Pending CN105020179A (en) | 2014-04-22 | 2014-04-22 | Axial flow compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094371A (en) * | 2019-03-25 | 2019-08-06 | 方淼洪 | A kind of Axial Flow Compressor for preventing air-flow from flowing backwards using fairing cap |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454633A (en) * | 2010-10-14 | 2012-05-16 | 株式会社日立制作所 | Axial compressor |
| JP5453176B2 (en) * | 2010-06-03 | 2014-03-26 | 三井造船株式会社 | Axial flow compressor |
-
2014
- 2014-04-22 CN CN201410163388.7A patent/CN105020179A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5453176B2 (en) * | 2010-06-03 | 2014-03-26 | 三井造船株式会社 | Axial flow compressor |
| CN102454633A (en) * | 2010-10-14 | 2012-05-16 | 株式会社日立制作所 | Axial compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094371A (en) * | 2019-03-25 | 2019-08-06 | 方淼洪 | A kind of Axial Flow Compressor for preventing air-flow from flowing backwards using fairing cap |
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Application publication date: 20151104 |