CN204239331U - One improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove - Google Patents
One improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove Download PDFInfo
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- CN204239331U CN204239331U CN201420699869.5U CN201420699869U CN204239331U CN 204239331 U CN204239331 U CN 204239331U CN 201420699869 U CN201420699869 U CN 201420699869U CN 204239331 U CN204239331 U CN 204239331U
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Abstract
The utility model proposes one and improve Capability of Compressor self-loopa and the hybrid processor box of peripheral groove.The Internal periphery of outer shroud and the external frame of inner ring form the runner of tapering type self-loopa processor box, and inner ring is processed several peripheral grooves, and outer shroud is connected with the boss of inner ring by fastening piece.The utility model is compared with self-loopa processor box, and peripheral groove cuts into a few part tip clearance leakage flow, weakens the driving force producing leaf top leakaging movement, suppresses the development of tip leakage vortex, obtains higher stability margin; Compared with peripheral groove, self-loopa processor box absorbs the blocked up end-wall boundary layer in blade path downstream by bleed, by jet raising vane inlet axial velocity, reduce the air inlet angle of attack, suppress the separation of blade back boundary layer, greatly expand gas compressor stable operation scope, and improve anti-inlet distortions ability.
Description
technical field:
The utility model relates to field of energy source power, and specifically one improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove.
background technique:
The self-loopa of the utility model design and the hybrid processor box of peripheral groove are used for reducing certain combustion engine and exit operating conditions, expand its low pressure compressor stable operation scope.Under this type unit cruising condition, low, the prototype anti-asthma casing of surge margin expands steady weak effect, design conditions and low operating mode compressor efficiency and reduces large, processed complex, is unfavorable for that this type machine is efficient, stable operation.Though simple by conventional peripheral groove processor box structure, expand steady effect and be in medium level; Self-loopa processor box requires that axial dimension is large, under strong adverse pressure gradient, in the certain limit of processor box rear portion, there will be flow separation phenomenon, causes gas compressor stability margin to reduce.
model utility content:
The purpose of this utility model is a kind of special processing casing designed in order to satisfied expansion gas compressor stable operation area requirement, that a type stability margin increment is large, peak efficiencies reduces little, structure is simple, for the low stable conditions of certain type combustion engine runs the self-loopa of improvement Capability of Compressor and the hybrid processor box of peripheral groove of development.
The technical solution of the utility model is: one improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, be made up of outer shroud and inner ring, the Internal periphery of outer shroud and the external frame of inner ring form tapering type self-loopa processor box, inner ring is processed several peripheral grooves, and outer shroud is connected with the boss of inner ring by fastening piece.
The runner (5) of described tapering type self-loopa processor box (7) is made up of the Internal periphery of outer shroud (1) and the external frame of inner ring (2).
The runner (5) of described tapering type self-loopa processor box (7) is gradual shrinkage.
Described tapering type self-loopa processor box (7) inwall and jet section of angle a(8) be less than 20 °.
Described tapering type self-loopa processor box (7) inwall and air inlet section angle b(6) be less than 60 °.
The utility model has following beneficial effect: the utility model is compared with self-loopa processor box, peripheral groove cuts into a few part tip clearance leakage flow, weaken the driving force producing leaf top leakaging movement, suppress the development of tip leakage vortex, obtain higher stability margin; Compared with peripheral groove, self-loopa processor box absorbs the blocked up end-wall boundary layer in blade path downstream by bleed, by jet raising vane inlet axial velocity, reduce the air inlet angle of attack, suppress the separation of blade back boundary layer, greatly expand gas compressor stable operation scope, and improve anti-inlet distortions ability.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
1-outer shroud in figure; 2-inner ring; 3-fastening piece; 4-peripheral groove; 5-runner; 6-air inlet section angle b; The tapering type self-loopa processor box of 7-; 8-jet section of angle a.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, one improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, be made up of outer shroud (1) and inner ring (2), the Internal periphery of outer shroud (1) and the external frame of inner ring (2) form the runner (5) of tapering type self-loopa processor box (7), in inner ring (2) several peripheral grooves of upper processing (4), outer shroud (1) is connected by the boss of fastening piece (3) with inner ring (2).
The runner (5) of described tapering type self-loopa processor box (7) is made up of the Internal periphery of outer shroud (1) and the external frame of inner ring (2).
The runner (5) of described tapering type self-loopa processor box (7) is gradual shrinkage.
Described tapering type self-loopa processor box (7) inwall and jet section of angle a(8) be less than 20 °.
Described tapering type self-loopa processor box (7) inwall and air inlet section angle b(6) be less than 60 °.
The utility model is compared with self-loopa processor box, and peripheral groove cuts into a few part tip clearance leakage flow, weakens the driving force producing leaf top leakaging movement, suppresses the development of tip leakage vortex, obtains higher stability margin; Compared with peripheral groove, self-loopa processor box absorbs the blocked up end-wall boundary layer in blade path downstream by bleed, by jet raising vane inlet axial velocity, reduce the air inlet angle of attack, suppress the separation of blade back boundary layer, greatly expand gas compressor stable operation scope, and improve anti-inlet distortions ability.
Claims (5)
1. one kind is improved Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, be made up of outer shroud (1) and inner ring (2), it is characterized in that: the Internal periphery of outer shroud (1) and the external frame of inner ring (2) form the runner (5) of tapering type self-loopa processor box (7), in inner ring (2) several peripheral grooves of upper processing (4), outer shroud (1) is connected by the boss of fastening piece (3) with inner ring (2).
2. one according to claim 1 improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, it is characterized in that: the runner (5) of described tapering type self-loopa processor box (7) is made up of the Internal periphery of outer shroud (1) and the external frame of inner ring (2).
3. one according to claim 1 improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, it is characterized in that: the runner (5) of described tapering type self-loopa processor box (7) is gradual shrinkage.
4. one according to claim 1 improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, it is characterized in that: described tapering type self-loopa processor box (7) inwall and jet section of angle a (8) are less than 20 °.
5. one according to claim 1 improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove, it is characterized in that: described tapering type self-loopa processor box (7) inwall and air inlet section angle b (6) are less than 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699869.5U CN204239331U (en) | 2014-11-20 | 2014-11-20 | One improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699869.5U CN204239331U (en) | 2014-11-20 | 2014-11-20 | One improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove |
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| Publication Number | Publication Date |
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| CN204239331U true CN204239331U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420699869.5U Active CN204239331U (en) | 2014-11-20 | 2014-11-20 | One improves Capability of Compressor self-loopa and the hybrid processor box of peripheral groove |
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| CN (1) | CN204239331U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405685A (en) * | 2014-11-20 | 2015-03-11 | 哈尔滨广瀚燃气轮机有限公司 | Self-circulation and circumferential groove hybrid treater box for improving performance of air compressor |
| CN108710746A (en) * | 2018-02-08 | 2018-10-26 | 哈尔滨广瀚燃气轮机有限公司 | Take into account the anti-twisted design method that naval vessel combustion engine compressor blade and blade predeformation influences |
| CN113606192A (en) * | 2021-07-26 | 2021-11-05 | 中国船舶重工集团公司第七0三研究所 | Self-circulation type casing treatment structure for compressor of ship gas turbine |
-
2014
- 2014-11-20 CN CN201420699869.5U patent/CN204239331U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405685A (en) * | 2014-11-20 | 2015-03-11 | 哈尔滨广瀚燃气轮机有限公司 | Self-circulation and circumferential groove hybrid treater box for improving performance of air compressor |
| CN108710746A (en) * | 2018-02-08 | 2018-10-26 | 哈尔滨广瀚燃气轮机有限公司 | Take into account the anti-twisted design method that naval vessel combustion engine compressor blade and blade predeformation influences |
| CN113606192A (en) * | 2021-07-26 | 2021-11-05 | 中国船舶重工集团公司第七0三研究所 | Self-circulation type casing treatment structure for compressor of ship gas turbine |
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| C14 | Grant of patent or utility model | ||
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