RU2019131528A - METHOD FOR REGULATING ROTATION SPEED OF A CENTRIFUGAL PUMP - Google Patents

METHOD FOR REGULATING ROTATION SPEED OF A CENTRIFUGAL PUMP Download PDF

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RU2019131528A
RU2019131528A RU2019131528A RU2019131528A RU2019131528A RU 2019131528 A RU2019131528 A RU 2019131528A RU 2019131528 A RU2019131528 A RU 2019131528A RU 2019131528 A RU2019131528 A RU 2019131528A RU 2019131528 A RU2019131528 A RU 2019131528A
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Prior art keywords
pump
correction factor
speed
head
actual
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RU2019131528A
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Russian (ru)
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RU2019131528A3 (en
RU2769325C2 (en
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Мартин ЭКЛЬ
Йоахим ШУЛЛЕРЕР
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Ксб Се & Ко. Кгаа
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Claims (10)

1. Способ регулирования частоты вращения центробежного насоса, эксплуатируемого в открытом гидравлическом контуре, при котором регулятор системы управления насосом определяет заданную частоту вращения привода насоса с учетом заданного и фактического значений напора, а также фактической частоты вращения, отличающийся тем, что регулятор для вычисления заданной частоты вращения учитывает поправочный коэффициент для описания геодезической высоты.1. A method of controlling the speed of a centrifugal pump operating in an open hydraulic circuit, in which the regulator of the pump control system determines the set speed of the pump drive taking into account the set and actual values of the head, as well as the actual speed, characterized in that the regulator for calculating the set frequency rotation takes into account a correction factor to describe the geodetic height. 2. Способ по п. 1, отличающийся тем, что регулятор для определения величины регулирующего воздействия берет за основу по, меньшей мере, компоненты законы аффинности, в частности, принимает квадратичную зависимость между частотой вращения и напором для вычисления величины регулирующего воздействия.2. The method according to claim 1, characterized in that the regulator for determining the magnitude of the control action takes as a basis at least the components of the laws of affinity, in particular, takes a quadratic relationship between the rotational speed and the head to calculate the magnitude of the control action. 3. Способ по п. 2, отличающийся тем, что регулятор определяет заданную частоту вращения по соотношению квадратичной зависимости между заданной частотой вращения и заданным значением напора и квадратичной зависимости между фактической частотой вращения и фактическим значением напора.3. The method according to claim. 2, characterized in that the regulator determines the set rotation speed by the ratio of the square-law relationship between the set speed and the set head value and the square-law relationship between the actual speed and the actual head value. 4. Способ по п. 2 или 3, отличающийся тем, что определяемая квадратичной зависимостью парабола посредством поправочного коэффициента смещается в начало координат.4. A method according to claim 2 or 3, characterized in that the parabola determined by the quadratic dependence is shifted to the origin by means of the correction factor. 5. Способ по п. 2 или 3, отличающийся тем, что значение поправочного коэффициента определяется во время работы насоса.5. The method according to claim 2 or 3, characterized in that the value of the correction factor is determined while the pump is running. 6. Способ по п. 5, отличающийся тем, что поправочному коэффициенту при пуске в эксплуатацию насоса придается известное исходное значение, в частности, это значение принимается равным нулю.6. The method according to claim 5, characterized in that a known initial value is given to the correction factor when the pump is put into operation, in particular, this value is taken to be zero. 7. Способ по п. 5, отличающийся тем, что поправочный коэффициент во время работы насоса выводится из ошибки регулирования, в частности, из разности между заданным и фактическим значениями напора.7. A method according to claim 5, characterized in that the correction factor during pump operation is derived from the control error, in particular from the difference between the setpoint and actual head values. 8. Способ по п. 7, отличающийся тем, что поправочный коэффициент вычисляется с помощью равенства
Figure 00000001
8. The method according to claim 7, characterized in that the correction factor is calculated using the equality
Figure 00000001
 9. Способ по п. 2 или 3, отличающийся тем, что определение поправочного коэффициента производится во время работы насоса при первом запуске и/или регулярно через периодические промежутки времени, и/или случайно.9. The method according to claim. 2 or 3, characterized in that the determination of the correction factor is made during the operation of the pump at the first start and / or regularly at periodic intervals, and / or randomly. 10. Центробежный насос с системой управления насосом для осуществления способа согласно любому из предыдущих пунктов.10. A centrifugal pump with a pump control system for carrying out the method according to any of the preceding claims.
RU2019131528A 2017-03-10 2018-03-07 Method of controlling rotation frequency of a centrifugal pump RU2769325C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017203990.6A DE102017203990A1 (en) 2017-03-10 2017-03-10 Method for controlling the speed of a centrifugal pump
DE102017203990.6 2017-03-10
PCT/EP2018/055602 WO2018162555A1 (en) 2017-03-10 2018-03-07 Method for controlling the rotational speed of a centrifugal pump

Related Child Applications (1)

Application Number Title Priority Date Filing Date
RU2020133046A Division RU2789312C1 (en) 2017-03-10 2018-03-07 Method for adjustment of rotational frequency of centrifugal pump

Publications (3)

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RU2019131528A true RU2019131528A (en) 2021-04-12
RU2019131528A3 RU2019131528A3 (en) 2021-07-20
RU2769325C2 RU2769325C2 (en) 2022-03-30

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EP (2) EP3592979B1 (en)
JP (2) JP7496685B2 (en)
CN (2) CN112833031A (en)
DE (1) DE102017203990A1 (en)
RU (1) RU2769325C2 (en)
WO (1) WO2018162555A1 (en)

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LU501134B1 (en) 2021-12-30 2023-07-04 Wilo Se Process for controlling a centrifugal pump
CN116542039B (en) * 2023-04-26 2024-01-12 安徽新沪屏蔽泵有限责任公司 Water pump performance curve simulation method

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RU2019131528A3 (en) 2021-07-20
EP3592979A1 (en) 2020-01-15
RU2769325C2 (en) 2022-03-30
CN112833031A (en) 2021-05-25
CN110382873A (en) 2019-10-25
DE102017203990A1 (en) 2018-09-13
EP3592979B1 (en) 2024-06-19
JP7496685B2 (en) 2024-06-07
WO2018162555A1 (en) 2018-09-13
CN110382873B (en) 2021-05-25
BR112019018584A2 (en) 2020-04-07
JP2021101113A (en) 2021-07-08
EP3851678A1 (en) 2021-07-21
JP2020510154A (en) 2020-04-02

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