CN203488438U - Efficient flow adjustment device of compressor - Google Patents
Efficient flow adjustment device of compressor Download PDFInfo
- Publication number
- CN203488438U CN203488438U CN201320611423.8U CN201320611423U CN203488438U CN 203488438 U CN203488438 U CN 203488438U CN 201320611423 U CN201320611423 U CN 201320611423U CN 203488438 U CN203488438 U CN 203488438U
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- compressor
- main shaft
- guide vane
- guide blade
- flow
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Abstract
The utility model relates to the field of compressors, in particular to an efficient flow adjustment device of a compressor. The efficient flow adjustment device is characterized in that a guiding blade is connected with a main shaft, the main shaft is sleeved with an inlet guide blade rotary shaft, the inlet guide blade rotary shaft is fixed through a fastening screw, the upper end of the main shaft is fixed through a nut, and an air inlet channel is formed between the guide blade and a rolling bearing. As the technical scheme is adopted, the adjustment performance of the inlet guide blade on the compressor is improved, the flow adjustment range is extended, inlet-airflow flow losses caused by a gap are reduced, the adjustment efficiency of the inlet guide blade is improved, the variable working condition performance of the centrifugal compressor is accordingly improved, the evacuated air quantity caused by the surplus air quantity is greatly reduced, and the aim of saving energy is achieved.
Description
Technical field
The utility model relates to compressor field, is a kind of efficient stream quantity regulating device of compressor.
Background technique
Compressor climate impact in running needs the flow of frequent adjustments of gas, in a lot of situations, by install the method for air-intake guide vane additional in import, control flow, yet because designing technique is relatively backward, the ability of air-intake guide vane adjust flux is inadequate at present, cause emptying the slatterning because tolerance is superfluous in the winter time, in the time of maximum, to waste the tolerance up to 30%, cause the waste of the energy, international most advanced level at most only needs emptying 15% tolerance at present, therefore improve the design of entry guide vane, developing efficient stream quantity regulating device is that the current compressor industry of China is badly in need of one of key technology solving, for improving China's compressor design technology, enterprise competitive ability has great importance, for energy-saving and emission-reduction, be of great immediate significance simultaneously.
When centrifugal compressor entry guide vane regulates, stator can be rotated a certain angle, air-flow will be along the channel flow angled with axial admission direction like this, and reaches prewhirling and throttle effect of expection.Structural type due to inlet passage and blade, make stator when rotating to an angle, its top and pipeline can not fit like a glove, and leave gap, and wherein a part of air-flow can be along Clearance Flow, and this part air-flow not only can not get effective adjusting, and main flow is impacted, cause flow losses, the power consumption of compressor is strengthened, waste energy.The existence of clearance between guide vanes can cause stator flow losses to increase, and stator produces the ability reduction that air-flow is prewhirled, and the regulating working conditions scope of compressor stage is dwindled.The established angle of stator is larger, and the impact of Clearance Flow is also more serious.Therefore, by improving foil nozzle, can improve the efficiency of entry guide vane, thereby improve the off design performance of centrifugal compressor.
Summary of the invention
The purpose of this utility model is by changing stator position inlet passage structure, its blade tip clearance being diminished, and expands the scope of stator Flow-rate adjustment, reduces the flow losses of stator flow channel fluid, reaches the object of province's merit, thereby reduces the utilization of the energy.
The utility model is achieved in that a kind of efficient stream quantity regulating device of compressor, it is characterized in that guide vane is connected with main shaft, is set with entry guide vane rotatingshaft on main shaft, by Cock screw, fixes, and in main shaft upper end, has nut to fix; At guide vane and roller bearing shop, there is gas-entered passageway; The top gas-entered passageway of guide vane present position along circumferentially hollowing out a part, makes its parcel of gap portion by stator by the width of its top, leaf top shoulder.
Owing to having adopted technique scheme, not only improved the adjusting function of entry guide vane to compressor, flow adjustment range is expanded, also the flow losses of the inlet air flow that the existence due to gap causes have been reduced, improved the adjusting efficiency of entry guide vane, thereby improved the off design performance of centrifugal compressor, made because tolerance is superfluous that emptying gas flow greatly reduces, reached the object of energy saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In the drawings: 1, guide vane; 2, gas-entered passageway; 3, entry guide vane rotatingshaft; 4, nut; 5, Cock screw; 6, rolling bearing; 7, main shaft.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
In Fig. 1, guide vane 1 is connected with main shaft 7, is set with entry guide vane rotatingshaft 3 on main shaft 7, fixing by Cock screw 5, has nut 4 fixing in main shaft 7 upper ends; At guide vane 1 and 6, rolling bearing, there is gas-entered passageway 2.
Guide vane 1 is driven and is rotated by entry guide vane rotatingshaft 3, thereby changes direction and the area of air inlet incoming flow, and then reaches the effect of Flow-rate adjustment.The top gas-entered passageway 2 of guide vane 1 present position is circumferentially hollowed out to a part by the width edge of its top, leaf top shoulder, make its parcel of gap portion by stator, reduce the blade tip clearance of stator to the mobile impact of inlet flow field, improve the adjusting function of entry guide vane.
Claims (1)
1. the efficient stream quantity regulating device of a compressor, it is characterized in that guide vane (1) is connected with main shaft (7), on main shaft (7), be set with entry guide vane rotatingshaft (3), fixing by Cock screw (5), in main shaft (7) upper end, there is nut (4) fixing; Between guide vane (1) and rolling bearing (6), there is gas-entered passageway (2); The top gas-entered passageway (2) of guide vane (1) present position along circumferentially hollowing out a part, makes its parcel of gap portion by stator by the width of its top, leaf top shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320611423.8U CN203488438U (en) | 2013-10-01 | 2013-10-01 | Efficient flow adjustment device of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320611423.8U CN203488438U (en) | 2013-10-01 | 2013-10-01 | Efficient flow adjustment device of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488438U true CN203488438U (en) | 2014-03-19 |
Family
ID=50259275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320611423.8U Expired - Lifetime CN203488438U (en) | 2013-10-01 | 2013-10-01 | Efficient flow adjustment device of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488438U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498815A (en) * | 2013-10-01 | 2014-01-08 | 湖北双剑鼓风机股份有限公司 | Efficient flow adjusting device of compressor |
| 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 |
| CN111664121A (en) * | 2020-05-25 | 2020-09-15 | 中科澳能(北京)节能技术有限公司 | Centrifugal compressor blade diffuser adjusting mechanism and control method thereof |
-
2013
- 2013-10-01 CN CN201320611423.8U patent/CN203488438U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498815A (en) * | 2013-10-01 | 2014-01-08 | 湖北双剑鼓风机股份有限公司 | Efficient flow adjusting device of compressor |
| 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 |
| CN111664121A (en) * | 2020-05-25 | 2020-09-15 | 中科澳能(北京)节能技术有限公司 | Centrifugal compressor blade diffuser 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |