SU1224458A1 - Vaned diffuser of centrifugal compressor - Google Patents
Vaned diffuser of centrifugal compressor Download PDFInfo
- Publication number
- SU1224458A1 SU1224458A1 SU843796476A SU3796476A SU1224458A1 SU 1224458 A1 SU1224458 A1 SU 1224458A1 SU 843796476 A SU843796476 A SU 843796476A SU 3796476 A SU3796476 A SU 3796476A SU 1224458 A1 SU1224458 A1 SU 1224458A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- centrifugal compressor
- blades
- vaned diffuser
- angular pitch
- diffuser
- Prior art date
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- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Изобретение относитс к компрессоро- строению и может быть использовано в лопаточных диффузорах центробежных компрессоров .The invention relates to a compressor design and can be used in blade diffusers of centrifugal compressors.
Цель изобретени - снижение уровн шума.The purpose of the invention is to reduce the noise level.
На фиг. 1 представлен диффузор, меридиональный разрез; на фиг 2 - то же, поперечный разрез.FIG. 1 shows the diffuser, meridional section; Fig 2 - the same cross section.
Лопаточный диффузор центробежного компрессора содержит боковые стенки 1 и лопатки 2, установленные между ними с неравномерным в окружном направлении угловым шагом а/, который определ етс из уравнени The centrifugal compressor blade diffuser contains side walls 1 and blades 2 mounted between them with angular pitch a / which is uneven in the circumferential direction, which is determined from the equation
a, ±A.cos(|i),a, ± A.cos (| i),
где Z - число лопаток; Am- амплитуда неравномерности углового шага; i- пор дковый номер лопатки 2.where Z is the number of blades; Am- amplitude of non-uniformity of the angular step; i is the serial number of the scapula 2.
Диффузор работает следующим образом.The diffuser works as follows.
При обтекании рабочим телом лопаток 2 на передних возникают переменные силы, вызывающие сиренный шум. Значительное снижение суммарного уровн шума осуществл етс за счет указанной расфазиров- ки звуковых волн в окружном направлении.When flowing around the working blades of the blades 2 on the front there are variable forces that cause lilac noise. A significant reduction in the total noise level is due to the de-phasing of sound waves in the circumferential direction.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU843796476A SU1224458A1 (en) | 1984-10-01 | 1984-10-01 | Vaned diffuser of centrifugal compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU843796476A SU1224458A1 (en) | 1984-10-01 | 1984-10-01 | Vaned diffuser of centrifugal compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1224458A1 true SU1224458A1 (en) | 1986-04-15 |
Family
ID=21140686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU843796476A SU1224458A1 (en) | 1984-10-01 | 1984-10-01 | Vaned diffuser of centrifugal compressor |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1224458A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104948504A (en) * | 2015-07-10 | 2015-09-30 | 南阳新威机电有限公司 | Electrical system and centrifugal pump thereof |
-
1984
- 1984-10-01 SU SU843796476A patent/SU1224458A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 830007, кл. F 04 D 1/00, 1979. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104948504A (en) * | 2015-07-10 | 2015-09-30 | 南阳新威机电有限公司 | Electrical system and centrifugal pump thereof |
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