CN206801957U - A kind of indirect-cooling multi stage axial flow compressor - Google Patents
A kind of indirect-cooling multi stage axial flow compressor Download PDFInfo
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- CN206801957U CN206801957U CN201720594712.XU CN201720594712U CN206801957U CN 206801957 U CN206801957 U CN 206801957U CN 201720594712 U CN201720594712 U CN 201720594712U CN 206801957 U CN206801957 U CN 206801957U
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- axial flow
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Abstract
The utility model discloses a kind of indirect-cooling multi stage axial flow compressor,The lower end of movable vane is connected with wheel hub,The upper end of stator blade is connected with casing,The lower end of stator blade is flexibly connected with wheel hub,Casing is provided with some cold air air inlet ring cavities and some cold air exhaust ring cavity,Cold runner in cold runner and some second is offered in some first in casing,Cold runner in the 3rd is provided with stator blade,The corresponding cold air air inlet ring cavity of one stator blade,One cold air is vented ring cavity,Cold runner in cold runner and one second in one first,The cooling medium outlet of cold air air inlet ring cavity is successively through corresponding to cold runner in first,Correspondingly cold runner is connected with the cooling medium entrance of corresponding cold air exhaust ring cavity in cold runner and corresponding second in the 3rd in stator blade,The multi stage axial flow compressor can reduce compressor power consumption,And it can effectively avoid the pressure loss of working media.
Description
Technical field
It the utility model is related to a kind of multi stage axial flow compressor, and in particular to a kind of indirect-cooling multi stage axial flow compressor.
Background technology
Compressor widely uses in chemical industry and energy industry, and it is Brayton Cycle system, remote gas conveying
Increase stressed important rotating machinery in system and chemical system for gaseous state or supercritical fluid.Using multistage
Axial flow compressor, during being pressurized to gaseous state or supercritical fluid, the temperature of fluid can be raised accordingly, and the rise of temperature
Cause the power consumption increase that fluid is further compressed.In supercritical carbon dioxide Near The Critical Point, work(needed for carbon dioxide is compressed
Consumption increases sharply with temperature rise, if suitable method can be used to reduce the temperature of fluid, can substantially reduce compression power consumption, carry
Rise the efficiency of the circulatory system.In order to reduce compression power consumption, researcher proposes a refrigeration technique, is：By fluid in large-scale pressure
The low-pressure compressor outlet extraction of mechanism of qi is cooled down, and fluid is delivered to the import of high-pressure compressor again, by high pressure pressure after cooling
Mechanism of qi convection body carries out adherence pressure.Space needed for refrigeration technique is larger between existing compressor, complicated, so being only capable of applying
Between power station gas turbine or the low-pressure compressor and high-pressure compressor of Vessel personnel.Above-mentioned technology, though can be certain
The power consumption of high-pressure compressor is reduced in degree, but cannot be used for reducing low-pressure compressor power consumption, and fluid flows through a cold passage
When can also necessarily bring certain pressure loss.
Utility model content
A kind of the shortcomings that the purpose of this utility model is to overcome above-mentioned prior art, there is provided indirect-cooling multistage axial flow pressure
Mechanism of qi, the multi stage axial flow compressor can reduce compressor power consumption, and can effectively avoid the pressure loss of working media.
To reach above-mentioned purpose, indirect-cooling multi stage axial flow compressor described in the utility model includes casing, wheel hub, some
Movable vane and some stator blades, the direction that each movable vane circulates with each stator blade along working media are interspersed successively, and the lower end of movable vane with
Wheel hub is connected, and the upper end of stator blade is connected with casing, and the lower end of stator blade is flexibly connected with wheel hub, and casing is provided with some cold air
Air inlet ring cavity and some cold air exhaust ring cavity, cold runner in cold runner and some second is offered in some first in casing, it is quiet
Be provided with cold runner in the 3rd in blade, the corresponding cold air air inlet ring cavity of a stator blade, a cold air exhaust ring cavity, one first
Cold runner in interior cold runner and one second, the cooling medium outlet of cold air air inlet ring cavity successively through cold runner in corresponding first,
Correspond to cold runner in the 3rd in stator blade and correspond to the cooling medium entrance phase that cold runner in second is vented ring cavity with corresponding cold air
Connection.
The side of wheel hub is provided with some annular grooves, wherein, the corresponding stator blade of annular groove, in the lower end of stator blade
In corresponding annular groove.
The cross section of cold runner is square, trapezoidal, polygon, circle or ellipse in first；
The cross section of cold runner is square, trapezoidal, polygon, circle or ellipse in second；
The cross section of cold runner is square, trapezoidal, polygon, circle or ellipse in 3rd.
Cold runner is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impact chamber in first
Cell structure or impingement sleeve structure；
Cold runner is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impact chamber in second
Cell structure or impingement sleeve structure；
Cold runner is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impact chamber in 3rd
Cell structure or impingement sleeve structure.
The direction circulated along working media, the size of each stator blade are gradually reduced.
The direction circulated along working media, the size of each movable vane are gradually reduced.
The utility model has the advantages that：
Indirect-cooling multi stage axial flow compressor described in the utility model offers some first in concrete operations in casing
Cold runner in interior cold runner and some second, stator blade is interior to be provided with cold runner in the 3rd, the cooling medium of cold air air inlet ring cavity output
Entered successively through cold runner in cold runner and corresponding second in the 3rd in cold runner, corresponding stator blade in corresponding first corresponding cold
In gas exhaust ring cavity, the cooling to stator blade and casing is realized, working media is when flowing through, by being changed with stator blade and casing
Heat, the temperature of working media is reduced, for next stage compressor blade, in the case where quality, flow are constant, can reduced
The compression power consumption of this grade of compressor, the compression power consumption of this grade of compressor is reduced, for multistage compressor, the utility model can
Greatly to reduce the overall power consumption of multi-stage compression, the efficiency of compressor and the circulatory system is improved, while do not need extra sky
Between place cooling structure, avoid the pressure loss of working media, avoid conventional art from reducing the compression of high-pressure compressor
The defects of power consumption, in the indirect-cooling multi stage axial flow compressor that can be widely used for single shaft or multiaxis.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is fundamental diagram of the present utility model.
Wherein, 1 be movable vane, 2 be wheel hub, 3 be stator blade, 4 be cold air exhaust ring cavity, 5 be casing, 6 be cold runner in the 3rd,
7 it is cold air air inlet ring cavity, 8 be cold runner in first, 9 is cold runner in second.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, indirect-cooling multi stage axial flow compressor described in the utility model includes casing 5, wheel hub 2, some movable vanes 1
And some stator blades 3, each movable vane 1 are interspersed successively with each stator blade 3 along the direction that working media circulates, and the lower end of movable vane 1 with
Wheel hub 2 is connected, and the upper end of stator blade 3 is connected with casing 5, and the lower end of stator blade 3 is flexibly connected with wheel hub 2, if casing 5 is provided with
Dry and cold gas air inlet ring cavity 7 and some cold air are vented ring cavity 4, are offered in casing 5 in some first in cold runner 8 and some second
Cold runner 9, cold runner 6 in the 3rd, 7, cold air rows of the corresponding cold air air inlet ring cavity of a stator blade 3 are provided with stator blade 3
Cold runner 9 in cold runner 8 and one second in 4, one first, compression ring chamber, the cooling medium outlet of cold air air inlet ring cavity 7 is successively
Through corresponding to, cold runner 9 and corresponding cold air are arranged in cold runner 6 and corresponding second in the 3rd in cold runner 8 in first, corresponding stator blade 3
The cooling medium entrance of compression ring chamber 4 is connected.
The side of wheel hub 2 is provided with some annular grooves, wherein, the corresponding stator blade 3 of annular groove, under stator blade 3
End is embedded in corresponding annular groove；The cross section of cold runner 8 is square, trapezoidal, polygon, circle or ellipse in first；
The cross section of cold runner 9 is square, trapezoidal, polygon, circle or ellipse in second；The cross section of cold runner 6 is in 3rd
Square, trapezoidal, polygon, circle or ellipse.
Cold runner 8 is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impact in first
Chamber structure or impingement sleeve structure；Cold runner 9 is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction knot in second
Structure, rib structure, impulse chamber structure or impingement sleeve structure；In 3rd cold runner 6 be straight passage structures, channel design of turning back,
Sudden expansion structure, sudden contraction structure, rib structure, impulse chamber structure or impingement sleeve structure.
The direction circulated along working media, the size of each stator blade 3 are gradually reduced；The direction circulated along working media, it is each dynamic
The size of leaf 1 is gradually reduced.
Specific operation process of the present utility model is：
The cooling medium that cold air air inlet ring cavity 7 exports is successively through corresponding to the 3rd in cold runner 8 in first, corresponding stator blade 3
Cold runner 9 is entered in corresponding cold air exhaust ring cavity 4 in interior cold runner 6 and corresponding second, is realized to the cold of stator blade 3 and casing 5
But, working media flows through the passage between wheel hub 2 and casing 5, wherein, working media does work to movable vane 1, makes the temperature of working media
Degree and pressure rise, working media are exchanged heat with stator blade 3 and casing 5, make the temperature of working media high.
The utility model makes the inner wall surface of casing 5, the surface of stator blade 3 and work be situated between by the cooling to stator blade 3 and casing 5
The temperature of matter contact surface is significantly lower than the temperature of working media, the heat exchange to working media is realized, so as to reduce working media
Temperature, working media often flows can do work by a row movable vane 1, movable vane 1 to working media, make the temperature and pressure of working media
Power raises, and working media often passes through a row stator blade 3, and can be transferred through the mode of heat exchange reduces the temperature parameter of working media.It is right
For next stage compressor blade, in the case where mass flow is constant, the inlet temperature of this grade of compressor can be reduced；For
For multistage compressor, every grade of stator blade 3 all uses above-mentioned cold scheme, then can greatly reduce the overall work(of multi-stage compression work(
Consumption, the efficiency of compressor and the circulatory system is improved, in actual use, the heat that an enfleurage is received can rationally be utilized, to enter
One step improves the efficiency of system.
The utility model does not influence and limited the flowing of working media, it is not necessary to additional space, available for single shaft or more
The indirect-cooling multi stage axial flow compressor of axle, single cylinder or multi-cylinder, can be applied to surface power station gas turbine, Vessel personnel,
The axial flow compressors such as aero-engine, supercritical carbon dioxide Brayton cycle electricity generation system, chemical system.
The technical solution of the utility model is not limited to the limitation of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, each falls within the scope of protection of the utility model.
Claims (6)
- A kind of 1. indirect-cooling multi stage axial flow compressor, it is characterised in that including casing (5), wheel hub (2), some movable vanes (1) and if Dry stator blade (3), each movable vane (1) are interspersed successively with each stator blade (3) along the direction that working media circulates, and under movable vane (1) End is connected with wheel hub (2), and the upper end of stator blade (3) is connected with casing (5), and lower end and wheel hub (2) activity of stator blade (3) connect Connect, casing (5) is provided with some cold air air inlet ring cavities (7) and some cold air exhaust ring cavity (4), is offered in casing (5) some Cold runner (9) in cold runner (8) and some second in first, stator blade (3) is interior to be provided with cold runner (6) in the 3rd, a stator blade (3) It is a corresponding cold air air inlet ring cavity (7), a cold air exhaust ring cavity (4), cold in cold runner (8) and one second in one first Runner (9), the cooling medium outlet of cold air air inlet ring cavity (7) is successively through corresponding in cold runner (8) in first, corresponding stator blade (3) The 3rd in cold runner (6) and corresponding second cold runner (9) the cooling medium entrance of ring cavity (4) be vented with corresponding cold air be connected It is logical.
- 2. indirect-cooling multi stage axial flow compressor according to claim 1, it is characterised in that wheel hub (2) if side be provided with Dry annular groove, wherein, the corresponding stator blade (3) of an annular groove, the lower end of stator blade (3) is embedded in corresponding annular groove It is interior.
- 3. indirect-cooling multi stage axial flow compressor according to claim 1, it is characterised in that the horizontal stroke of cold runner (8) in first Section is square, trapezoidal, polygon, circle or ellipse；The cross section of cold runner (9) is square, trapezoidal, polygon, circle or ellipse in second；The cross section of cold runner (6) is square, trapezoidal, polygon, circle or ellipse in 3rd.
- 4. indirect-cooling multi stage axial flow compressor according to claim 1, it is characterised in that cold runner (8) is straight in first Channel design, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impulse chamber structure or impingement sleeve structure；Cold runner (9) is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impact chamber in second Cell structure or impingement sleeve structure；Cold runner (6) is straight passage structures, channel design of turning back, sudden expansion structure, sudden contraction structure, rib structure, impact chamber in 3rd Cell structure or impingement sleeve structure.
- 5. indirect-cooling multi stage axial flow compressor according to claim 1, it is characterised in that the side circulated along working media To the size of each stator blade (3) is gradually reduced.
- 6. indirect-cooling multi stage axial flow compressor according to claim 1, it is characterised in that the side circulated along working media To the size of each movable vane (1) is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594712.XU CN206801957U (en) | 2017-05-25 | 2017-05-25 | A kind of indirect-cooling multi stage axial flow compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594712.XU CN206801957U (en) | 2017-05-25 | 2017-05-25 | A kind of indirect-cooling multi stage axial flow compressor |
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| CN206801957U true CN206801957U (en) | 2017-12-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989066A (en) * | 2017-05-25 | 2017-07-28 | 华能国际电力股份有限公司 | A kind of indirect-cooling multi stage axial flow compressor and its method of work |
| CN108254206A (en) * | 2017-12-27 | 2018-07-06 | 中国航发四川燃气涡轮研究院 | A kind of state adjusting method for high overall pressure tatio multistage compressor performance test |
| CN108443236A (en) * | 2018-03-05 | 2018-08-24 | 清华大学 | A kind of compressor stator corner separation control device and its control method |
| CN110552913A (en) * | 2018-05-31 | 2019-12-10 | 中国人民解放军陆军军事交通学院 | Electrically driven multistage centrifugal compressor device with cooling circulation function |
-
2017
- 2017-05-25 CN CN201720594712.XU patent/CN206801957U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989066A (en) * | 2017-05-25 | 2017-07-28 | 华能国际电力股份有限公司 | A kind of indirect-cooling multi stage axial flow compressor and its method of work |
| CN108254206A (en) * | 2017-12-27 | 2018-07-06 | 中国航发四川燃气涡轮研究院 | A kind of state adjusting method for high overall pressure tatio multistage compressor performance test |
| CN108254206B (en) * | 2017-12-27 | 2020-04-07 | 中国航发四川燃气涡轮研究院 | State adjusting method for performance test of high-total-pressure-ratio multistage compressor |
| CN108443236A (en) * | 2018-03-05 | 2018-08-24 | 清华大学 | A kind of compressor stator corner separation control device and its control method |
| CN110552913A (en) * | 2018-05-31 | 2019-12-10 | 中国人民解放军陆军军事交通学院 | Electrically driven multistage centrifugal compressor device with cooling circulation function |
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