SU773314A1 - Method of detecting presurging duty of centrifugal compressor - Google Patents
Method of detecting presurging duty of centrifugal compressor Download PDFInfo
- Publication number
- SU773314A1 SU773314A1 SU792749266A SU2749266A SU773314A1 SU 773314 A1 SU773314 A1 SU 773314A1 SU 792749266 A SU792749266 A SU 792749266A SU 2749266 A SU2749266 A SU 2749266A SU 773314 A1 SU773314 A1 SU 773314A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- signal
- detecting
- presurging
- duty
- centrifugal compressor
- Prior art date
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Description
Изобретение относится к регулированию и защите компрессоров.The invention relates to the regulation and protection of compressors.
Известен способ обнаружения предпомпажного режима центробежного компрессора измерением давления в' проточной части компрессора [1 ] .There is a method of detecting the pre-compressor mode of a centrifugal compressor by measuring the pressure in the 'flow section of the compressor [1].
Недостаток способа состоит в том, что для мощных компрессоров, у которых поток за рабочим колесом имеет широкий спектр пульсаций давлений предпомпажный режим определяется недостаточно надежно.The disadvantage of this method is that for powerful compressors, in which the flow behind the impeller has a wide range of pressure pulsations, the pre-surge mode is determined insufficiently reliably.
Цель изобретения - повышение надежности .The purpose of the invention is to increase reliability.
Цель достигается тем, что измеренный сигнал давления подвергают корреляционной обработке, вычисляют период корреляционной функции, сравнивают его с заданной величиной и по результатам сравнения определяют наступление предломпажного режима.The goal is achieved by the fact that the measured pressure signal is subjected to a correlation processing, the period of the correlation function is calculated, it is compared with a predetermined value, and the occurrence of the pre-compression mode is determined by the results of the comparison.
На чертеже представлена блок-схема устройства.The drawing shows the block diagram of the device.
Устройство содержит датчик 1 давления, усилитель 2, коррелометр 3, процессор 4, индикатор 5 и датчик 6 частоты вращения.The device comprises a pressure sensor 1, an amplifier 2, a correlometer 3, a processor 4, an indicator 5 and a rotational speed sensor 6.
Обнаружение предломпажного режима по данному способу осуществляетсяThe detection of pre-surge mode by this method is carried out
следующим образом.in the following way.
10ten
,5,five
2020
2525
30thirty
22
Пульсация давления датчиком 1 преобразуется в электрический сигнал, который усиливается усилителем 2. Место установки датчика определяется только конструктивными особенностями компрессора. Он может устанавливаться или на линии нагнетания или на линии всасывания. Далее электрический сигнал подвергается корреляционной обработке в коррелометре 3. С выхода коррелометра сигнал, пропорциональный корреляционной функции, поступает в процессор 4.The pressure pulsation of the sensor 1 is converted into an electrical signal, which is amplified by the amplifier 2. The installation location of the sensor is determined only by the design features of the compressor. It can be installed either on the discharge line or on the suction line. Next, the electrical signal is subjected to a correlation processing in the correlometer 3. From the output of the correlometer, a signal proportional to the correlation function enters the processor 4.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792749266A SU773314A1 (en) | 1979-04-03 | 1979-04-03 | Method of detecting presurging duty of centrifugal compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792749266A SU773314A1 (en) | 1979-04-03 | 1979-04-03 | Method of detecting presurging duty of centrifugal compressor |
Publications (1)
Publication Number | Publication Date |
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SU773314A1 true SU773314A1 (en) | 1980-10-23 |
Family
ID=20820612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792749266A SU773314A1 (en) | 1979-04-03 | 1979-04-03 | Method of detecting presurging duty of centrifugal compressor |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU773314A1 (en) |
-
1979
- 1979-04-03 SU SU792749266A patent/SU773314A1/en active
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