EP3592981A1 - Verfahren zum betrieb einer drehzahlvariablen umwälzpumpe sowie umwälzpumpe zur verfahrensausführung - Google Patents
Verfahren zum betrieb einer drehzahlvariablen umwälzpumpe sowie umwälzpumpe zur verfahrensausführungInfo
- Publication number
- EP3592981A1 EP3592981A1 EP18711026.7A EP18711026A EP3592981A1 EP 3592981 A1 EP3592981 A1 EP 3592981A1 EP 18711026 A EP18711026 A EP 18711026A EP 3592981 A1 EP3592981 A1 EP 3592981A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- variable
- operating
- amplitude
- physical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F04D15/0088—Testing machines
-
- 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
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
- F04D15/0272—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being wear or a position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
Definitions
- the invention relates to a method for operating a variable-speed circulating pump, in particular a heating circulation pump.
- the cause of a too high noise level during pump operation may be due to the pump itself or to the selected installation variant of the pump within the heating circuit.
- Typical circulation pumps allow several different installation variants in order to have better flexibility with regard to the conditions and space conditions at the installation site. For the fitter, however, it is hardly recognizable beforehand which installation variant is the best in terms of operating volume. In the worst case, the operating vibration of the pump falls to the natural frequency of the system of pump and piping, resulting in a significant increase in noise emission.
- the object of the present invention is therefore to provide a method for detecting an unfavorable installation variant. This object is achieved by a method according to the features of claim 1. Advantageous embodiments of the method are the subject of the dependent claims.
- a variable-speed circulating pump in particular a heating circulating pump
- the comparison result can be used for an evaluation of the installation variant, in particular as to whether the installation variant is disadvantageous in terms of noise emission in pump operation.
- the circulating pump is typically a centrifugal pump.
- a direct comparison in which the measured physical pump operating variable is compared directly against a corresponding reference variable.
- An indirect comparison includes exemplary embodiments according to which the measured variable is first further processed and at least one quantity derived therefrom is compared with a suitable reference variable.
- suitable pump operating variable is any physical size that allows a characterization of the pump behavior, ie the noise emission.
- negative effects have already been demonstrated, which can lead to an unpredictable increase in noise emission, in particular the coincidence of the natural frequency of the pump and pipeline system with the operating oscillation of the pump. Consequently, physical variables that permit a statement regarding the operating oscillation of the pump are particularly suitable.
- an acceleration value is proposed, in particular the acceleration of the conveyed pumped medium and / or the acceleration of the driven pump impeller and / or the acceleration of the pump housing.
- the acceleration value should be recorded as close as possible to the impeller.
- the acceleration values can be measured by means of an integrated acceleration sensor of the circulation pump, which is preferably located on the pump housing in the immediate vicinity of the impeller.
- the metrological detection of the physical pump operating variable used can be carried out either continuously during the pump operation or else limited to a definable measuring interval, optionally with repeated measurements at random or periodic intervals.
- the pump control can make a visual and / or acoustic signaling to alert the end user or installer to the problem of the installation variant, ideally in combination with a proposal for a alternative better installation variant.
- the detected value of the pump operating variable is initially processed further.
- the vibration behavior of the physical operating variable is determined on the basis of the measured physical pump operating variable. For this purpose, it is necessary that the pump operating variable has been recorded over a certain period of time in order to finally be able to conclude on the oscillation behavior of the size.
- the vibration behavior is obtained, for example, by means of Fast Fourier Transformation (FFT) from the time course of the measured acceleration value.
- FFT Fast Fourier Transformation
- At least one variable characterizing the determined vibration behavior is compared with a suitable reference value of the characteristic variable stored in the pump control in order to carry out the evaluation of the installation variant.
- characterizing Size is usefully proposed the amplitude and / or the frequency of the determined oscillation.
- the oscillation amplitude is compared against a reference amplitude and signaling with respect to the non-optimal installation variant to the end user occurs sooner if the detected amplitude is higher by a specific amount than the reference amplitude.
- the reference value (s) may be dependent on the current operating point of the pump.
- the current operating point of a circulating pump is defined by the intersection between the system characteristic curve and the control characteristic of the pump. Since the noise development of the pump depends decisively on the selected operating point, it is proposed according to an advantageous embodiment of the method to define assigned individual reference values for a plurality of operating points and to keep them available in the pump control. The pump control then selects the appropriate one depending on the current adjusted operating point Reference value and compares current readings directly or indirectly with the selected reference value.
- One or more suitable reference values are generated in advance, ideally during pump development.
- a reference pump is used within a test field in different installation variants.
- the reference variable for different operating points is measured and stored. Subsequently, the reference values of the installation variant are selected as final reference values which show the lowest noise emission in the test bench.
- the present object is also achieved by a circulation pump, in particular a heating circulation pump, with a variable-speed pump drive and a pump control, which is suitable for carrying out the method according to the present invention.
- a circulation pump in particular a heating circulation pump
- a pump control which is suitable for carrying out the method according to the present invention.
- the recirculation pump has the same advantages and features as those already Hand of the method according to the invention are set forth in detail. A repetitive description is omitted for this reason.
- the circulating pump is typically a centrifugal pump.
- the pump may preferably comprise at least one acceleration sensor, it is also conceivable another sensor which allows an indirect detection of the acceleration value.
- Figure 1 a schematic representation of the installation situation of a circulating pump
- Figure 2 a signal diagram of the detected acceleration value.
- the present invention describes a method for detecting an unfavorable installation variant of a heating circulation pump 10. This method is implemented in the pump control and requires that the pump 10 has an acceleration sensor 1 1, which detects the acceleration of the pump housing as close to the pump impeller.
- the pump structure is indicated schematically in FIG.
- FIG. 1 shows schematically the connection of the circulating pump 10 to a building wall 1.
- the mounting parts is shown here as a spring-damper system 12.
- the type of installation has an influence on the stiffness and damper parameters and thus changes the natural frequency and the associated amplitude.
- the actual implementation of the process is based on two preparatory steps.
- an optimal installation variant is defined.
- different installation variants are implemented in the test field during the development phase and the vibration behavior and the acoustics are recorded at several operating points.
- one of the variants is rated as optimal on the basis of the measured data.
- the characteristic values detected by the acceleration sensor 11 for describing the oscillation state for example, amplitude, frequency
- the vibration state ie the amplitude-frequency diagram of the vibration behavior, is obtained by means of Fast Fourier Transformation from the time curve of the measured acceleration value.
- This data is ultimately implemented in the local memory of the pump controller.
- the execution of the method according to the invention then takes place during pump operation.
- the pump 1 0 detected with its acceleration sensor 1 1, the acceleration of the pump housing over time.
- the characteristic vibration values are determined and compared with the reference values previously detected as optimal. If the oscillation amplitude in the process is significantly higher than the amplitude previously detected as optimal, the pump 10 will recognize this and notify the user. The user can then use this information to optionally optimize the installation variant of the pump 10.
- FIG. 2 shows the frequency-amplitude diagram for two different installation variants determined by means of FFT from the signal curve of the acceleration sensor 11.
- Installation variant 2 shows a significantly lower vibration amplitude at certain frequencies than installation variant 1.
- the influence of the stiffness and damper parameters of the respective installation variant shown in FIG. 1 (according to FIG. 1) on the frequency response of the measured value acquired by the acceleration sensor during operation can be recognized.
Landscapes
- 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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017203959.0A DE102017203959A1 (de) | 2017-03-10 | 2017-03-10 | Verfahren zum Betrieb einer drehzahlvariablen Umwälzpumpe sowie Umwälzpumpe zur Verfahrensausführung |
| PCT/EP2018/054887 WO2018162290A1 (de) | 2017-03-10 | 2018-02-28 | Verfahren zum betrieb einer drehzahlvariablen umwälzpumpe sowie umwälzpumpe zur verfahrensausführung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3592981A1 true EP3592981A1 (de) | 2020-01-15 |
| EP3592981B1 EP3592981B1 (de) | 2022-06-08 |
Family
ID=61628301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18711026.7A Active EP3592981B1 (de) | 2017-03-10 | 2018-02-28 | Verfahren zum betrieb einer drehzahlvariablen umwälzpumpe sowie umwälzpumpe zur verfahrensausführung |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3592981B1 (de) |
| JP (1) | JP7720133B2 (de) |
| CN (1) | CN110382874B (de) |
| BR (1) | BR112019018597B1 (de) |
| DE (1) | DE102017203959A1 (de) |
| RU (1) | RU2760277C2 (de) |
| WO (1) | WO2018162290A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956897A (ja) * | 1982-08-12 | 1984-04-02 | シ−メンス・アクチエンゲゼルシヤフト | 暖房用配管システムの熱媒体循環方法および装置 |
| JP2575709Y2 (ja) * | 1992-01-06 | 1998-07-02 | 株式会社ガスター | 循環ポンプ装備器機 |
| RU2068553C1 (ru) * | 1994-08-29 | 1996-10-27 | Костюков Владимир Николаевич | Способ оценки технического состояния центробежного насосного агрегата по вибрации корпуса |
| JP3929204B2 (ja) * | 1999-06-09 | 2007-06-13 | 株式会社荏原製作所 | 循環ポンプユニット |
| JP2003271241A (ja) * | 2002-03-13 | 2003-09-26 | Mitsubishi Heavy Ind Ltd | 運転監視制御システム |
| JP3624289B2 (ja) * | 2002-04-26 | 2005-03-02 | 株式会社日立製作所 | ポンプ振動監視方法および装置 |
| JP2004288427A (ja) * | 2003-03-20 | 2004-10-14 | Mitsubishi Electric Corp | 色選別電極機構の支持状態評価方法およびこれを用いたカラー陰極線管の製造方法 |
| DE10334817A1 (de) * | 2003-07-30 | 2005-03-10 | Bosch Rexroth Ag | Vorrichtung und Verfahren zur Fehlererkennung an Pumpen |
| DE202005004382U1 (de) | 2005-03-16 | 2005-06-09 | Rempen, Thomas | Verschleißindikatoren für Haushaltsgeräte mit abnutzbaren Bauteilen |
| DE102006034478A1 (de) * | 2006-07-26 | 2008-01-31 | Oerlikon Leybold Vacuum Gmbh | Verfahren zur Ermittlung einer Aussage über einen Zustand einer Turbomolekularpumpe sowie eine Turbomolekularpumpe |
| US8676387B2 (en) * | 2008-10-13 | 2014-03-18 | General Electric Company | Methods and systems for determining operating states of pumps |
| DE102009005154A1 (de) * | 2009-01-15 | 2010-07-22 | Wilo Se | Vorrichtung zur Verbindung einer elektromotorischen Antriebseinheit mit einer Pumpeneinheit |
| CN201908851U (zh) * | 2010-12-31 | 2011-07-27 | 清华大学 | 一种磁悬浮分子泵系统 |
| DE102011083033A1 (de) * | 2011-09-20 | 2013-03-21 | Robert Bosch Gmbh | Verfahren zur Beurteilung eines Einspritzverhaltens wenigstens eines Einspritzventils einer Brennkraftmaschine und Betriebsverfahren für Brennkraftmaschine |
| DE102014003247A1 (de) * | 2014-03-12 | 2015-09-17 | Wilo Se | Verfahren zur Bereitstellung von wenigstens einer Information an einem Pumpenaggregat |
| DE102014104747A1 (de) | 2014-04-03 | 2015-10-08 | Pfeiffer Vacuum Gmbh | Verfahren und System zur Ermittlung und Bewertung der Einbauorientierung einer Einrichtung |
| CN103907590B (zh) * | 2014-04-04 | 2015-09-23 | 江苏大学 | 一种喷臂拉索安装位置的确定方法 |
| CN104978450B (zh) * | 2015-04-27 | 2019-03-29 | 中国直升机设计研究所 | 一种直升机振动主动控制位置优选方法 |
| DE202015003927U1 (de) | 2015-05-29 | 2015-07-13 | Oerlikon Leybold Vacuum Gmbh | Steuerungselektronik für eine Vakuumpumpe sowie Vakuumpumpe |
-
2017
- 2017-03-10 DE DE102017203959.0A patent/DE102017203959A1/de not_active Withdrawn
-
2018
- 2018-02-28 EP EP18711026.7A patent/EP3592981B1/de active Active
- 2018-02-28 JP JP2019548612A patent/JP7720133B2/ja active Active
- 2018-02-28 WO PCT/EP2018/054887 patent/WO2018162290A1/de not_active Ceased
- 2018-02-28 CN CN201880016831.4A patent/CN110382874B/zh active Active
- 2018-02-28 BR BR112019018597-6A patent/BR112019018597B1/pt active IP Right Grant
- 2018-02-28 RU RU2019131529A patent/RU2760277C2/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| BR112019018597A2 (pt) | 2020-04-07 |
| WO2018162290A1 (de) | 2018-09-13 |
| DE102017203959A1 (de) | 2018-09-13 |
| JP2020510153A (ja) | 2020-04-02 |
| CN110382874A (zh) | 2019-10-25 |
| EP3592981B1 (de) | 2022-06-08 |
| BR112019018597B1 (pt) | 2023-04-04 |
| RU2019131529A (ru) | 2021-04-12 |
| JP7720133B2 (ja) | 2025-08-07 |
| CN110382874B (zh) | 2021-09-17 |
| RU2760277C2 (ru) | 2021-11-23 |
| RU2019131529A3 (de) | 2021-06-10 |
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