SU943410A1 - Method of adjustment of axial-flow turbomachine - Google Patents
Method of adjustment of axial-flow turbomachine Download PDFInfo
- Publication number
- SU943410A1 SU943410A1 SU803219919A SU3219919A SU943410A1 SU 943410 A1 SU943410 A1 SU 943410A1 SU 803219919 A SU803219919 A SU 803219919A SU 3219919 A SU3219919 A SU 3219919A SU 943410 A1 SU943410 A1 SU 943410A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- blades
- stresses
- axial
- installation
- impeller
- Prior art date
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
1one
Изобретение относите к турбиностроению . Извеетен способ доводки осевой турбо .машины нутем из.менени luara лопаток на выходе направл ющего анпарата, распо .юженного перед лопаточным рабочим колесо .м 1 .The invention relate to the turbine. The method of finishing the axial turbomachine was mastered by changing the luara of the blades at the exit of the guide assembly, located in front of the blade impeller.
Недостатка.ми такого способа вл ютс сложность из.менени njara при доводке и высокие резонансные напр жени в лопатка .х рабочего колеса.The disadvantage of this method is the complexity of changing the njara when fine-tuning and high resonance voltages in the blade of the impeller.
и,ель изобретени - уменынение резонансны .х напр жений в лопатках рабочего колеса.and, the invention of spruce, is the reduction of resonant stresses in the blades of the impeller.
Поставленна цель достигаетс тем, что изменение uiara осуп1ествл ют у группы лопаток наг1равл Ъп1его аппарата в количестве 50 ± 0°/о от их o6niero числа путем установки лопаток этой группы под углом. превышающим угол установки остальных лопаток на 8-10°, измер ют уровень резонансных напр жений в лопатках рабочего колеса, а затем увеличивают разность углов установки лопаток направл ющего аппарата до значени , соответствующего допустимо.му уровню напр жений.This goal is achieved by changing the uiara to a group of blades of the blades of the apparatus in an amount of 50 ± 0 ° / o of their o6niero number by installing the blades of this group at an angle. exceeding the installation angle of the remaining blades by 8-10 °, measure the level of resonant stresses in the blades of the impeller, and then increase the difference in the angles of installation of the blades of the guide vane to a value corresponding to the allowable level of stresses.
Па чертеже схематически изображен ,ionaT04Hiini аппарат .мащнны, с по .чощью которого осуп еетвл етс способ.The drawing of the drawing is schematically depicted, the ionaT04Hiini apparatus is machined, with the aid of which it is messed up with the method.
Турбо.машина содержит направ,т ющий аппарат I, расположе 1ный перед лопаточным рабочи.м колесом 2. Лопатки 3 на прав ,1 ющего аппарата 1 В1;1полнены поворотными , а лонатки 4 енабжены системой измерени резонансных напр жений.The turbo.machine contains a thrusting device I, located 1 in front of the blade working wheel 2. The blades 3 on the right, 1 stitching apparatus 1 B1; 1 are full of swivels, and the rest 4 are equipped with a system for measuring resonant voltages.
Способ осуп1ествл ют следующим образом .The method is described as follows.
10ten
Группу ,1опаток 3 в ко,1ичеетве 50 0°/о от их обн1его чпс,1а путем их поворота устанавливают па угол oCj , превышающий угол di установки остальных лопаток 3 на 8- 10°, измен таким образом щаг 1 лопаток 4 па их выходе. Измер ют уровень резонанс15 ных напр жений в лопатках 4 рабочего колеса 2, а затем увеличивают разность утов и 2 ло их значени , соответствующего допусти.мому уровню напр жений в лопатках 4.The group, 1 blades 3 in ko, 1 50 ° 0 ° / o from their crowns, 1a, by turning them, sets the angle oCj, which exceeds the angle di of the installation of the remaining blades 3 by 8-10 °, thus changing the clamp 1 of the blades 4 to their output . The level of resonance stresses in the blades 4 of the impeller 2 is measured, and then the difference between them and their value is increased, which corresponds to the allowable level of the stresses in the blades 4.
2020
Уменьп ение резонансных напр жений в рабочих лопатках достигаетс за счет оперативного изменени углов установки группы лопаток в процессе доводки т)рбомащины .A decrease in the resonant voltages in the working blades is achieved by quickly changing the installation angles of the blade group in the process of finishing the working process.
Предлагаемый способ позвол ет без существенного увеличени стоимости доводочных работ снизить резонансные напр жмш в рабочих лопатках в два раза.The proposed method allows, without a significant increase in the cost of finishing work, to reduce the resonant pressures in working blades by half.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803219919A SU943410A1 (en) | 1980-12-22 | 1980-12-22 | Method of adjustment of axial-flow turbomachine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803219919A SU943410A1 (en) | 1980-12-22 | 1980-12-22 | Method of adjustment of axial-flow turbomachine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU943410A1 true SU943410A1 (en) | 1982-07-15 |
Family
ID=20932639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU803219919A SU943410A1 (en) | 1980-12-22 | 1980-12-22 | Method of adjustment of axial-flow turbomachine |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU943410A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959571A (en) * | 1988-03-11 | 1990-09-25 | Mitsubishi Denki Kabushiki Kaisha | Axial-flow fan with tapered hub and duct |
| US5758716A (en) * | 1995-03-30 | 1998-06-02 | Nissan Motor Co., Ltd. | Radiator unit for internal combustion engine |
| RU2579300C1 (en) * | 2014-12-09 | 2016-04-10 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" | Method of turbomachinery wheels finishing |
-
1980
- 1980-12-22 SU SU803219919A patent/SU943410A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959571A (en) * | 1988-03-11 | 1990-09-25 | Mitsubishi Denki Kabushiki Kaisha | Axial-flow fan with tapered hub and duct |
| US5758716A (en) * | 1995-03-30 | 1998-06-02 | Nissan Motor Co., Ltd. | Radiator unit for internal combustion engine |
| RU2579300C1 (en) * | 2014-12-09 | 2016-04-10 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" | Method of turbomachinery wheels finishing |
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