CN209818397U - Leading stator and have leaf diffuser joint adjusting device - Google Patents
Leading stator and have leaf diffuser joint adjusting device Download PDFInfo
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- CN209818397U CN209818397U CN201920054908.9U CN201920054908U CN209818397U CN 209818397 U CN209818397 U CN 209818397U CN 201920054908 U CN201920054908 U CN 201920054908U CN 209818397 U CN209818397 U CN 209818397U
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Abstract
The utility model discloses a combined adjusting device of a front guide vane and a bladed diffuser, which belongs to the field of compressed air energy storage centrifugal compressors and comprises a front guide vane with a hole at the front edge, an air duct and a diffuser blade with a hole at the tail edge, wherein the front guide vane is communicated with a guide vane gas collecting ring through an airflow channel in a rotating shaft of the front guide vane; in the adjusting process of the front guide vane, the air inflow is changed through the angle change of the rotating shaft, and the air is discharged from the through hole on the surface of the blade through the airflow channel; in the diffuser blade adjusting process, the air suction amount is changed through the angle change of the rotating shaft, and the air is led out from the through holes on the surface of the blade; the utility model discloses a rotation of leading stator and diffuser blade and blade pump drainage gas combined action realize the improvement of centrifugal compressor efficiency under the variable working condition.
Description
Technical Field
The utility model belongs to compressed air energy storage centrifugal compressor field relates to a centrifugal compressor's air current guider, especially relates to a leading stator and have leaf diffuser joint adjusting device that centrifugal compressor used.
Background
The operation condition of the centrifugal compressor for compressed air energy storage can be changed due to different requirements and system load changes in actual operation, and the centrifugal compressor can be adjusted to meet the change of the requirements and ensure normal and efficient operation of the compressor. When the working condition is changed, the adjustable guide vane and the adjustable diffuser are installed to guide the airflow to adjust the speed and the direction, so that the attack angle between the airflow and the blades can be always kept in a reasonable range, the flow loss is reduced, and the system efficiency is improved.
Currently, the adopted adjusting technology usually adopts an independently adjustable guide vane and an independently adjustable diffuser, or realizes the linkage adjustment of the two parts through a simple mechanical structure. These adjustments assume that the flow does not separate during adjustment, flowing along the adjusting blade face. However, in practice, when the blade attack angle is too large during the adjustment process, the flow separation occurs when the airflow passes through the blade, and a low-speed region is generated near the blade surface, so that a large total pressure loss is generated. And poor flow phenomena in the two parts cannot be taken into account and reasonably suppressed during such conditioning. Therefore, under some adjusting conditions, the efficiency cannot be effectively improved, and the efficiency may be reduced.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect and not enough of prior art, the utility model aims at providing a leading stator and have the joint adjusting device of leaf diffuser that centrifugal compressor used can realize effectively suppressing leading stator and diffuser blade surface flow separation among the accommodation process, reduces total pressure loss and improves compressor work efficiency.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a combined regulating device of a front guide vane and a bladed diffuser comprises an air inlet flow regulating device arranged in an air inlet flow passage of a centrifugal compressor and the bladed diffuser arranged at the outlet of an impeller of the centrifugal compressor and positioned in a volute of the compressor, and is characterized in that,
the air inlet flow adjusting device comprises a plurality of preposed guide vanes, a guide vane gas collecting ring and a guide vane mounting angle adjusting mechanism which are uniformly arranged in an air inlet channel of the centrifugal compressor along the circumferential direction, extend along the radial direction and have adjustable mounting angles, the vaned diffuser comprises a plurality of diffuser blades, a diffuser gas collecting ring and a diffuser blade mounting angle adjusting mechanism which are vertically arranged on a diffuser body, are uniformly arranged along the circumferential direction and have adjustable mounting angles, the guide vane gas collecting ring and the guide vane mounting angle adjusting mechanism are both arranged in a side wall casing of the air inlet channel, the diffuser gas collecting ring and the diffuser blade mounting angle adjusting mechanism are both arranged in the diffuser body, wherein,
a baffle plate extending from the front edge of the blade to the tail edge of the blade is arranged in the hollow cavity of each front guide vane and diffuser blade, so that the hollow cavity is divided into a first cavity close to the suction surface of the blade and a second cavity close to the pressure surface of the blade;
a plurality of through holes distributed in the spanwise direction and communicated with the hollow cavity are formed in the suction surface and the pressure surface of each front guide vane, which are close to the front edge of the vane; a plurality of through holes distributed in the unfolding direction and communicated with the hollow cavity are formed in the suction surface and the pressure surface of each diffuser blade, and the through holes are close to the tail edge of each blade;
a rotating shaft extending outwards is fixedly arranged on the bottom wall of each front guide vane and diffuser blade, a first channel and a second channel extending along the axis are arranged in the rotating shaft, and the first channel and the second channel are respectively communicated with the first cavity and the second cavity;
a plurality of ventilation branch pipes communicated with the inner cavity of the gas collecting ring are uniformly and fixedly arranged on the inner side wall of the guide vane gas collecting ring and the outer end surface of the diffuser gas collecting ring along the circumferential direction, and a substantially semicircular baffle is arranged on the inner wall of each ventilation branch pipe close to the outlet;
the outer diameter of each rotating shaft is basically equivalent to the inner diameter of the air branch pipe, and the tail end of each rotating shaft is rotatably inserted at the outlet position of one air branch pipe and abuts against the outer surface of the baffle plate;
the rotating shaft of each leading guide vane and diffuser blade is in transmission connection with the guide vane mounting angle adjusting mechanism and the diffuser blade mounting angle adjusting mechanism respectively, and the guide vane mounting angle adjusting mechanism and the diffuser blade mounting angle adjusting mechanism adjust the mounting angles of the leading guide vanes and the diffuser blades by driving the rotating shaft of each leading guide vane and diffuser blade to rotate respectively;
the guide vane gas collection ring is communicated with the diffuser gas collection ring through a gas guide pipe at least provided with a gas quantity regulating valve, and the gas guide pipe is used for conveying high-pressure gas in the diffuser gas collection ring to the guide vane gas collection ring.
The utility model discloses a leading stator and have leaf diffuser joint adjusting device, its theory of operation is:
the high-pressure gas in the guide vane gas collecting ring enters the first cavity or the second cavity of the front guide vane through the first channel or the second channel on the rotating shaft of the diffuser vane and then is conveyed into the guide vane gas collecting ring through a gas guide pipe, the high-pressure gas in the guide vane gas collecting ring enters the first cavity or the second cavity of the front guide vane through the first channel or the second channel on the rotating shaft of the front guide vane and is blown into the gas inlet channel through the through hole on the suction surface or the pressure surface of the front guide vane, and the high-pressure gas in the bladed diffuser is obtained by the way that the gas pressure near the blades of the diffuser is higher than that of the front guide vane in the gas inlet channel, the air flow is sucked from the blade surface of the diffuser and is exhausted from the blade surface of the front guide vane, and the air flow is formed to flow from the vaned diffuser to the front guide vane.
Preferably, the air duct is provided with at least one air quantity regulating valve, and the air quantity regulating valve is used for controlling the flow and the pressure of the air flow in the air duct.
Preferably, the cross-sectional shapes of the first and second passages are formed as two symmetrical segments at least at the distal end face of the rotating shaft.
Further, the central angle of each sector is 90 °, and the rotation axis is rotated by 90 ° in both the first rotation direction and the second rotation direction with reference to the reference position.
Preferably, a seal ring is arranged between each rotating shaft and the corresponding vent branch pipe.
Preferably, when flow separation occurs on the suction surface of the front guide vane, the rotating shaft rotates along a first rotating direction from a reference position, so that the first channel is opened, the second channel is closed, and high-pressure gas is discharged from the suction surface of the front guide vane; when flow separation occurs on the pressure surface of the front guide vane, the rotating shaft rotates along a second rotating direction from the reference position, so that the second channel is opened, the first channel is closed, and high-pressure gas is discharged from the pressure surface of the front guide vane. The flow separation is improved by the scouring of the surfaces with poor flow by the high pressure gas.
Further, the flow and the pressure of high-pressure gas discharged from the suction surface or the pressure surface of the front guide vane are adjusted by adjusting the angle of the rotating shaft of the front guide vane relative to the reference position.
Preferably, when flow separation occurs on the suction surface of the diffuser blade, the rotating shaft thereof rotates in a first rotating direction from a reference position, so that the first passage is opened, the second passage is closed, and high-pressure gas is sucked from the suction surface of the diffuser blade; when flow separation occurs on the pressure surface of the diffuser blade, the rotating shaft rotates along a second rotating direction from a reference position, so that the second channel is opened, the first channel is closed, and high-pressure gas is sucked from the pressure surface of the diffuser blade. Flow separation is improved by pumping high pressure gas that presents poor flow surfaces.
Further, the flow of high-pressure gas introduced from the suction surface or the pressure surface of the diffuser blade is adjusted by adjusting the angle of the rotating shaft of the diffuser blade relative to a reference position; and adjusting the flow of high-pressure gas discharged from the suction surface or the pressure surface of the front guide vane by adjusting the angle of the rotating shaft of the front guide vane relative to the reference position.
Preferably, the rotating shaft stays at the reference position when no flow separation occurs on the suction surface and the pressure surface of the leading guide vane or diffuser blade.
Compared with the prior art, the combined adjusting device of the front guide vane and the vane diffuser can greatly widen the variable working condition operating range of the centrifugal compressor, and improve the flow separation influence of the vane surface when the compressor is adjusted by the fixed vane under the deviated working condition, thereby effectively ensuring the adjusting effect of the guide vane and the diffuser and obviously enlarging the high-efficiency variable working condition range of the compressor; the reasonable setting of air intake and exhaust amount is realized directly through the rotation of the blades in the adjusting process, the structure is simple and easy to implement, and the adverse effect caused by excessive moving parts is avoided; in addition, the adjusting device is easy to be directly implemented under the condition of small adjustment of the original compressor device, and is convenient for engineering practice application.
Drawings
FIG. 1 is a schematic view of a combined adjusting device of a front guide vane and a vaned diffuser according to the present invention;
fig. 2 is a schematic structural diagram of a leading vane in the device of the present invention, wherein (a) is a side view, (B) is a top view from a direction a, and (C) is a schematic cross-sectional view of a blade;
FIG. 3 is a schematic structural diagram of a diffuser vane in the device of the present invention, wherein (A) is a side view, (B) is a top view from A, and (C) is a schematic cross-sectional view of the vane;
fig. 4 is a schematic structural view of the vent branch in the device of the present invention, wherein (a) is a front view, (B) is a schematic longitudinal section from a-a, and (C) is a schematic transverse section from B-B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the combined adjusting device of the leading guide vane and the vaned diffuser of the present invention comprises an inlet flow adjusting device 100 disposed in the inlet flow channel of the centrifugal compressor and a vaned diffuser 200 disposed at the outlet of the impeller of the centrifugal compressor and located in the volute of the compressor, wherein the inlet flow adjusting device 100 comprises a plurality of leading guide vanes 110 uniformly disposed in the inlet flow channel of the centrifugal compressor along the circumferential direction and extending along the radial direction, and having adjustable installation angles, a guide vane gas collecting ring 120 and a guide vane installation angle adjusting mechanism (not shown in the figure), the vaned diffuser 200 comprises a plurality of diffuser blades 210, a diffuser gas collecting ring 220 and a diffuser blade installation angle adjusting mechanism (not shown in the figure) vertically disposed on the diffuser body and uniformly disposed along the circumferential direction, and having adjustable installation angles, the guide vane gas collecting ring 120 and the guide vane installation angle adjusting mechanism are both disposed in the casing (not shown in the figure) of the, the diffuser gas collecting ring 220 and the diffuser blade installation angle adjusting mechanism are both arranged in the diffuser body (not shown in the figure), the guide vane gas collecting ring 120 is communicated with the diffuser gas collecting ring 200 through a gas guide pipe 300 with a gas amount adjusting valve 310, and the gas guide pipe 300 is used for conveying high-pressure gas in the diffuser gas collecting ring 220 to the guide vane gas collecting ring 110.
As shown in fig. 2, in the front guide vane 110, a plurality of through holes 111 distributed along the span direction are respectively arranged at two sides of the suction surface and the pressure surface of the hollow blade near the front edge of the blade, and a partition plate 112 extending from the front edge to the tail edge of the blade is arranged in the hollow cavity of the blade, so as to divide the hollow cavity of the blade into a first cavity 113 near the suction surface of the blade and a second cavity 114 near the pressure surface of the blade; a rotating shaft 115 extending outwards is fixedly arranged on the bottom wall of the blade, a first channel 116 and a second channel 117 extending along the axis are arranged in the rotating shaft 115, and the first channel 116 and the second channel 117 are respectively communicated with the first cavity 113 and the second cavity 114; the section of each channel at the outlet of the shaft end of the guide vane is in a sector shape with a central angle of 90 degrees; each rotating shaft 115 is in transmission connection with a guide vane installation angle adjusting mechanism through a mechanical structure 118 (such as a gear, a connecting rod, etc.) arranged on the side surface of the rotating shaft 115, and the guide vane installation angle adjusting mechanism adjusts the installation angle of each front guide vane 110 by driving the rotating shaft 115 to rotate.
As shown in fig. 3, the diffuser blade 210 has a substantially same ventilation structure as the leading guide blade 110, a plurality of through holes 211 distributed in the span direction are formed at both sides of the suction surface and the pressure surface of the hollow blade near the leading edge of the blade, and a partition 212 extending from the leading edge to the trailing edge of the blade is disposed in the hollow cavity of the blade, so as to divide the hollow cavity of the blade into a first cavity 213 near the suction surface of the blade and a second cavity 214 near the pressure surface of the blade; a rotating shaft 215 extending outwards is fixedly arranged on the bottom wall of the blade, a first channel 216 and a second channel 217 extending along the axis are arranged in the rotating shaft 215, and the first channel 216 and the second channel 217 are respectively communicated with the first cavity 213 and the second cavity 214; the section of each channel at the outlet of the shaft end of the guide vane is in a sector shape with a central angle of 90 degrees; each of the rotating shafts 215 is drivingly connected to the diffuser blade installation angle adjusting mechanism through a mechanical structure 218 (e.g., a gear, a connecting rod, etc., a driving connecting rod is shown) disposed on a side surface thereof, and the diffuser blade installation angle adjusting mechanism adjusts the installation angle of each of the diffuser blades 210 by driving the rotation of each of the rotating shafts 215.
Referring to fig. 1 and 4, a plurality of ventilation branch pipes 400 communicated with the inner cavity of the diffuser gas collecting ring are uniformly and fixedly arranged on the inner side wall of the guide vane gas collecting ring 120 and the outer end surface of the diffuser gas collecting ring 220 along the circumferential direction, and a substantially semicircular baffle 401 is arranged on the inner wall of each ventilation branch pipe 400 close to the outlet. The outer diameter of each rotating shaft 115, 215 is substantially equal to the inner diameter of the ventilation branch pipe 400, and the end of each rotating shaft 115, 215 is rotatably inserted at the outlet position of a ventilation branch pipe 400 and abuts against the outer surface of the baffle 401, so that each rotating shaft 115, 215 is communicated with the inner cavity of the gas collecting ring through a ventilation branch pipe 400, and is preferably sealed by arranging a sealing ring between the two end surfaces.
When each of the rotating shafts 115, 215 rotates to the reference position, the first passages 116, 216 and the second passages 117, 217 are closed by the shutter 401 being shielded, when the rotating shafts 115, 215 gradually deviate from the reference position in the first rotating direction, the first passages 116, 216 gradually open and the second passages 117, 217 are closed, and when the rotating shafts 115, 215 gradually deviate from the reference position in the second rotating direction opposite to the first rotating direction, the second passages 117, 217 gradually open and the first passages 116, 216 are closed.
The utility model discloses a leading stator and have leaf diffuser joint adjusting device, its theory of operation is:
the vaned diffuser 200 is arranged at the outlet position of the centrifugal compressor impeller, the gas pressure near the diffuser blade 210 is higher than that of the front guide blade 110 in the gas inlet channel, when the rotating shafts 115 and 215 of the front guide blade 110 and the diffuser blade 210 respectively deviate from the reference position, the high-pressure gas enters the first cavity 213 or the second cavity 214 through the through hole 211 on the suction surface or the pressure surface of the diffuser blade 210 and enters the diffuser gas collecting ring 220 through the first channel 216 or the second channel 217 on the rotating shaft 215 of the diffuser blade 210, then the high-pressure gas in the diffuser gas collecting ring 220 is conveyed into the guide blade gas collecting ring 120 through the gas guide pipe 300, the high-pressure gas in the guide blade gas collecting ring 120 enters the first cavity 113 or the second cavity 114 of the front guide blade 110 through the first channel 116 or the second channel 117 on the rotating shaft 115 of the front guide blade and is blown into the gas inlet channel through the through hole 111 on the suction surface or the pressure surface of the front guide, in this way, the high-pressure gas in the vaned diffuser 200 is sucked in from the surface of the diffuser blade 210 and discharged from the blade surface of the leading guide vane 110, and the flow of the gas flow from the vaned diffuser 200 to the leading guide vane 110 is formed. The air duct 300 is provided with an air volume adjusting valve 310 for controlling the flow and pressure of the air in the air duct 300.
When flow separation occurs on the suction surface of the front guide vane 110, the rotating shaft 115 rotates along a first rotating direction from a reference position, so that the first channel 116 is opened, the second channel 117 is closed, the larger the rotating angle is away from the reference position, the larger the channel area of the first channel 116 is opened, and the higher the rotating angle is, the higher the proportional relation is formed between the channel area and the rotating angle, and high-pressure gas is discharged from the suction surface of the front guide vane 110; when flow separation occurs on the pressure surface of the front guide vane 110, the rotating shaft 115 rotates in the second rotating direction from the reference position, so that the second passage 117 is opened and the first passage 116 is closed, and the larger the rotating angle is from the reference position, the larger the passage area of the second passage 117 is opened, and high-pressure gas is discharged from the pressure surface of the front guide vane 110. The flow separation is improved by the scouring of the surfaces with poor flow by the high pressure gas. When no flow separation occurs on both the suction side and the pressure side of the front guide vane 110, the rotating shaft 115 stays at the reference position.
The diffuser vanes 210 are adjusted in a manner similar to the diffuser vanes 210. When flow separation occurs on the suction surface of the diffuser vane 210, the rotating shaft 215 rotates along a first rotating direction from a reference position, so that the first passage 216 is opened, the second passage 217 is closed, the larger the rotating angle is away from the reference position, the larger the area of the passage opened by the first passage 216 is, and the larger the rotating angle is, the higher the proportional relation is formed between the area and the rotating angle, and high-pressure gas is introduced from the suction surface of the diffuser vane 210; when flow separation occurs on the pressure surface of the diffuser vane 210, the rotating shaft 215 rotates in the second rotating direction from the reference position, so that the second passage 217 is opened and the first passage 216 is closed, and the larger the rotating angle is from the reference position, the larger the passage area of the second passage 117 is opened, and high-pressure gas is introduced from the pressure surface of the diffuser vane 210. Flow separation is improved by pumping of the high pressure gas against surfaces where poor flow occurs. When no flow separation occurs on either the suction or pressure surfaces of the diffuser vane 210, the shaft 115 stays in the reference position. In addition, when the working condition range shows other needs, flow and pressure in the air duct 300 are controlled through the air quantity regulating valve 310, and efficient variable working condition operation of the centrifugal compressor is achieved.
The utility model discloses a leading stator and have the joint adjusting device of vane diffuser, can widen centrifugal compressor variable operating condition operating range greatly, improve the compressor and deviate under the operating mode the blade face flow separation influence when the quiet leaf is adjusted to effectively guarantee stator and diffuser regulating effect, make the high-efficient variable operating condition scope of compressor show the increase; the reasonable setting of air intake and exhaust amount is realized directly through the rotation of the blades in the adjusting process, the structure is simple and easy to implement, and the adverse effect caused by excessive moving parts is avoided; in addition, the adjusting device is easy to be directly implemented under the condition of small adjustment of the original compressor device, and is convenient for engineering practice application.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A combined regulating device of a front guide vane and a bladed diffuser comprises an air inlet flow regulating device arranged in an air inlet flow passage of a centrifugal compressor and the bladed diffuser arranged at the outlet of an impeller of the centrifugal compressor and positioned in a volute of the compressor, and is characterized in that,
the air inlet flow adjusting device comprises a plurality of preposed guide vanes, a guide vane gas collecting ring and a guide vane mounting angle adjusting mechanism which are uniformly arranged in an air inlet channel of the centrifugal compressor along the circumferential direction, extend along the radial direction and have adjustable mounting angles, the vaned diffuser comprises a plurality of diffuser blades, a diffuser gas collecting ring and a diffuser blade mounting angle adjusting mechanism which are vertically arranged on a diffuser body, are uniformly arranged along the circumferential direction and have adjustable mounting angles, the guide vane gas collecting ring and the guide vane mounting angle adjusting mechanism are both arranged in a side wall casing of the air inlet channel, the diffuser gas collecting ring and the diffuser blade mounting angle adjusting mechanism are both arranged in the diffuser body, wherein,
a baffle plate extending from the front edge of the blade to the tail edge of the blade is arranged in the hollow cavity of each front guide vane and diffuser blade, so that the hollow cavity is divided into a first cavity close to the suction surface of the blade and a second cavity close to the pressure surface of the blade;
a plurality of through holes distributed in the spanwise direction and communicated with the hollow cavity are formed in the suction surface and the pressure surface of each front guide vane, which are close to the front edge of the vane; a plurality of through holes distributed in the unfolding direction and communicated with the hollow cavity are formed in the suction surface and the pressure surface of each diffuser blade, and the through holes are close to the tail edge of each blade;
a rotating shaft extending outwards is fixedly arranged on the bottom wall of each front guide vane and diffuser blade, a first channel and a second channel extending along the axis are arranged in the rotating shaft, and the first channel and the second channel are respectively communicated with the first cavity and the second cavity;
a plurality of ventilation branch pipes communicated with the inner cavity of the gas collecting ring are uniformly and fixedly arranged on the inner side wall of the guide vane gas collecting ring and the outer end surface of the diffuser gas collecting ring along the circumferential direction, and a substantially semicircular baffle is arranged on the inner wall of each ventilation branch pipe close to the outlet;
the outer diameter of each rotating shaft is basically equivalent to the inner diameter of the air branch pipe, and the tail end of each rotating shaft is rotatably inserted at the outlet position of one air branch pipe and abuts against the outer surface of the baffle plate;
the rotating shaft of each leading guide vane and diffuser blade is in transmission connection with the guide vane mounting angle adjusting mechanism and the diffuser blade mounting angle adjusting mechanism respectively, and the guide vane mounting angle adjusting mechanism and the diffuser blade mounting angle adjusting mechanism adjust the mounting angles of the leading guide vanes and the diffuser blades by driving the rotating shaft of each leading guide vane and diffuser blade to rotate respectively;
the guide vane gas collection ring is communicated with the diffuser gas collection ring through a gas guide pipe, and the gas guide pipe is used for conveying high-pressure gas in the diffuser gas collection ring to the guide vane gas collection ring.
2. The combined regulator of claim 1, wherein the gas duct has at least one gas regulating valve for controlling the flow and pressure of the gas in the gas duct.
3. The combined adjusting device of the leading guide vane and the vaned diffuser of claim 1, wherein the cross-sectional shapes of the first and second passages are formed as two symmetrical segments at least at the end surface of the rotating shaft.
4. The combined adjusting device of the leading guide vane and the vaned diffuser of claim 3, wherein the central angle of each sector is 90 °, and the rotation axis is rotated by 90 ° in both the first rotation direction and the second rotation direction with reference to the reference position.
5. The combined adjusting device of the front guide vane and the vaned diffuser of claim 1, wherein a seal ring is arranged between each rotating shaft and the corresponding ventilating branch pipe.
6. The combined vane and vaned diffuser regulator of claim 1 wherein the shaft rotates in a first direction from a reference position when flow separation occurs at the suction surface of the leading vane, thereby opening the first passage and closing the second passage, and allowing high pressure gas to exit the suction surface of the leading vane; when flow separation occurs on the pressure surface of the front guide vane, the rotating shaft rotates along a second rotating direction from the reference position, so that the second channel is opened, the first channel is closed, and high-pressure gas is discharged from the pressure surface of the front guide vane.
7. The device of claim 1, wherein the flow and pressure of the high pressure gas discharged from the suction surface or the pressure surface of the leading guide vane are adjusted by adjusting the angle of the rotating shaft of the leading guide vane with respect to a reference position.
8. The combined vane and vaned diffuser tuning device of claim 1, wherein when flow separation occurs at the suction surface of the diffuser blade, the shaft is rotated in a first rotational direction from a reference position to open the first passage and close the second passage, and high pressure gas is drawn in from the suction surface of the diffuser blade; when flow separation occurs on the pressure surface of the diffuser blade, the rotating shaft rotates along a second rotating direction from a reference position, so that the second channel is opened, the first channel is closed, and high-pressure gas is sucked from the pressure surface of the diffuser blade.
9. The combined adjusting device of the leading guide vane and the vaned diffuser of claim 1, wherein the flow rate of the high-pressure gas introduced from the suction surface or the pressure surface of the diffuser blade is adjusted by adjusting the angle of the rotating shaft of the diffuser blade relative to a reference position; and adjusting the flow of high-pressure gas discharged from the suction surface or the pressure surface of the front guide vane by adjusting the angle of the rotating shaft of the front guide vane relative to the reference position.
10. The combined leading vane and vaned diffuser adjustment device of claim 1, wherein the shaft stays in a reference position when no flow separation occurs on either the suction side or the pressure side of the leading vane or diffuser blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920054908.9U CN209818397U (en) | 2019-01-14 | 2019-01-14 | Leading stator and have leaf diffuser joint adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920054908.9U CN209818397U (en) | 2019-01-14 | 2019-01-14 | Leading stator and have leaf diffuser joint adjusting device |
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| CN209818397U true CN209818397U (en) | 2019-12-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737100A (en) * | 2019-01-14 | 2019-05-10 | 中国科学院工程热物理研究所 | A kind of exhaust inlet guide vane combines regulating device and method with vaned diffuser |
| CN111664110A (en) * | 2020-05-25 | 2020-09-15 | 中科澳能(北京)节能技术有限公司 | Compressor inlet guide vane adjusting mechanism and control method thereof |
| CN113417887A (en) * | 2021-06-29 | 2021-09-21 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal compressor with blade diffuser and lifting gear connecting rod mechanism |
-
2019
- 2019-01-14 CN CN201920054908.9U patent/CN209818397U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737100A (en) * | 2019-01-14 | 2019-05-10 | 中国科学院工程热物理研究所 | A kind of exhaust inlet guide vane combines regulating device and method with vaned diffuser |
| CN109737100B (en) * | 2019-01-14 | 2024-02-02 | 中国科学院工程热物理研究所 | Combined adjusting device and method for front guide vane and vaned diffuser of exhaust |
| CN111664110A (en) * | 2020-05-25 | 2020-09-15 | 中科澳能(北京)节能技术有限公司 | Compressor inlet guide vane adjusting mechanism and control method thereof |
| CN111664110B (en) * | 2020-05-25 | 2021-09-07 | 中国科学院工程热物理研究所 | Compressor inlet guide vane adjusting mechanism and control method thereof |
| CN113417887A (en) * | 2021-06-29 | 2021-09-21 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal compressor with blade diffuser and lifting gear connecting rod mechanism |
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