BS EN 16644-2014 Pumps Rotodynamic pumps Glandless circulators having a rated power input not exceeding 200 W for heating installations and domestic hot water installations Noise tr.pdf

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1、BSI Standards PublicationBS EN 16644:2014Pumps Rotodynamic pumps Glandless circulators havinga rated power input notexceeding 200 W for heatinginstallations and domestic hotwater installations Noisetest code (vibro-acoustics) formeasuring structure- and fluid-borne noiseBS EN 16644:2014 BRITISH STAN

2、DARDNational forewordThis British Standard is the UK implementation of EN 16644:2014. Itsupersedes BS EN 1151-2:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/6, Pumps and pump testing.A list of organizations represented on this committee can

3、beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 83316 8ICS 23.080Compliance wi

4、th a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2014.Amendments issued since publicationDate Text affectedBS EN 16644:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISC

5、HE NORM EN 16644 December 2014 ICS 23.080 Supersedes EN 1151-2:2006English Version Pumps - Rotodynamic pumps - Glandless circulators having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Noise test code (vibro-acoustics) for measuring structu

6、re- and fluid-borne noise Pompes - Pompes rotodynamiques - Circulateurs sans presse-toupe de puissance absorbe nexcdant pas 200 W, destins au chauffage central et la distribution deau chaude sanitaire domestique - Code dessai acoustique (vibro-acoustique) pour le mesurage des bruits de structure et

7、hydrauliques Pumpen - Kreiselpumpen - Umwlzpumpen in Nassluferbauart mit elektrischer Leistungsaufnahme bis 200 W fr Heizungsanlagen und Brauchwassererwrmungsanlagen fr den Hausgebrauch -Geruschprfvorschrift (vibro-akustisch) zur Messung von Krperschall und Flssigkeitsschall This European Standard w

8、as approved by CEN on 2 November 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such

9、national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own l

10、anguage and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gre

11、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG

12、 CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16644:2014 EBS EN 16644:2014EN 16644:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative r

13、eferences 6 3 Terms and definitions .6 4 Symbols and units .8 5 Test rig 8 5.1 General 8 5.2 Main components of test rig .8 5.3 Specification of test rig components 10 5.4 Assembly . 13 5.5 Foundation 13 5.6 Qualifications 13 5.7 Instrumentation . 13 5.7.1 Measurement of pressure fluctuations. 13 5.

14、7.2 Measurement of vibration 13 5.8 Calibration . 14 5.8.1 Accelerometers . 14 5.8.2 Pressure transducers . 14 5.8.3 Calibration of accelerometers and pressure transducers 14 5.9 Propagation coefficients 14 6 Installation and operation 15 6.1 Installation . 15 6.2 Operating parameters 16 6.2.1 Gener

15、al . 16 6.2.2 Test conditions . 16 6.3 Initial operation time . 17 7 Factors influencing measurements 17 7.1 Electromagnetic surroundings 17 7.2 Earth loops 17 7.3 Vibration surroundings 18 8 Determination of fluid- and structure-borne powers 18 8.1 Frequency range . 18 8.2 Measurement parameters 18

16、 8.2.1 Pressure fluctuation measurement parameters 18 8.2.2 Vibration measurement parameters . 18 8.3 Sense of power propagation . 19 8.4 Fluid-borne power determination 19 8.4.1 General . 19 8.4.2 Fluid-borne intensity 19 8.4.3 Fluid-borne power. 20 8.5 Structure-borne power determination 20 8.5.1

17、General . 20 8.5.2 Structure-borne intensity . 20 8.5.3 Structure-borne power . 21 BS EN 16644:2014EN 16644:2014 (E) 3 8.6 Overall values of power 21 8.7 Coefficients of energy propagation and power levels . 21 8.7.1 Coefficient of fluid-borne energy propagation . 21 8.7.2 Coefficient of structure-b

18、orne energy propagation . 21 8.7.3 Fluid-borne power level 22 8.7.4 Structure-borne power level . 22 9 Information to be reported 22 Annex A (informative) Bending wave number and intensity dimensional constant . 23 Bibliography 25 BS EN 16644:2014EN 16644:2014 (E) 4 Foreword This document (EN 16644:

19、2014) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2015 and conflicting national sta

20、ndards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1151

21、-2:2006. This standard replaces EN 1151-2:2006 as a result of the withdrawal of EN 1151-1 and the issuing of the EN 16297 series as its replacement and is expanded to include cooling systems. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following cou

22、ntries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P

23、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16644:2014EN 16644:2014 (E) 5 Introduction This document covers the measurement of fluid and structure-borne noise as induced by small glandless circulators having a rated input of 200 W. I

24、t has been prepared in response to the need of having uniform procedures as requirements for noise levels especially in residential housing, tightened by national and European regulations. The issue of airborne noise is covered by other standards. BS EN 16644:2014EN 16644:2014 (E) 6 1 Scope This Eur

25、opean Standard specifies a test code for the vibro-acoustic characterization of glandless circulators with pump housing having a rated power input P1 200W, intended to be used in heating installations, domestic hot water service installations and cooling systems, and is limited to glandless circulat

26、ors with threaded connections of 11/2 inch. The test code comprises the test rig, the measurement method and the test conditions. This European Standard applies to glandless circulators, which are manufactured after the date of issue of this European Standard. The characterization principle is based

27、 on measuring the structure-borne and the fluid-borne power transmitted respectively by vibration and pressure fluctuations in the pipe connected to a glandless circulator. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indisp

28、ensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 16297-1:2012, Pumps Rotodynamic pumps Glandless circulators Part 1: General requirements and procedures for

29、testing and calculation of energy efficiency index (EEI) EN 50160, Voltage characteristics of electricity supplied by public distribution networks ISO 2016, Capillary solder fittings for copper tubes Assembly dimensions and tests 3 Terms and definitions For the purposes of this document, the terms a

30、nd definitions given in EN 16297-1:2012 and the following apply. 3.1 speed setting setting attained (for pumps with different settings) when the speed of the electric motor is changed 3.2 fluid-borne intensity Ifbtime averaged rate of flow of the acoustic energy per cross section of fluid transmitte

31、d lengthways the straight pipe by internal pressure fluctuations Note 1 to entry: Its sign can be positive or negative indicating the sense of energy propagation. Note 2 to entry: Fluid-borne intensity is expressed in W/m2. BS EN 16644:2014EN 16644:2014 (E) 7 3.3 fluid-borne power Pfbnet acoustic po

32、wer emitted by a source of pressure fluctuations in the connected straight pipe glandless circulators Note 1 to entry : Fluid-borne power is always positive. Note 2 to entry: Fluid-borne power is expressed in W. 3.4 structure-borne intensity Isbtime averaged rate of flow of the vibrational energy pe

33、r unit of length transmitted lengthways the straight pipe by vibration Note 1 to entry: Its sign can be positive or negative indicating the sense of energy propagation. Note 2 to entry : Isbis an average of the structure borne intensity over the pipe wall thickness and is therefore expressed in W/m.

34、 3.5 structure-borne power Psbnet vibration power emitted by a source of vibration in the connected straight pipe glandless circulators Note 1 to entry: Structure-borne power is always positive. Note 2 to entry: Structure-borne power is expressed in W. 3.6 coefficient of fluid-borne energy reflectio

35、n Rfbratio between the net fluid-borne power reflected by pipework discontinuities and the net fluid borne power emitted in a straight pipe by a pump glandless circulators Note 1 to entry: Pipework discontinuities covers bends, obstructions, section changes, pipe fixations etc. Note 2 to entry: This

36、 coefficient is always positive and is non-dimensional. 3.7 coefficient of structure-borne energy reflection Rsbratio between the net structure-borne power reflected by pipework discontinuities and the net structure borne power emitted in a straight pipe by a pump glandless circulators Note 1 to ent

37、ry: Pipework discontinuities covers bends, obstructions, section changes, pipe fixations etc. Note 2 to entry: This coefficient is always positive and is non-dimensional. 3.8 fluid-borne power level LWfblogarithmic measure of the fluid-borne power emitted in the straight pipe by a source glandless c

38、irculators BS EN 16644:2014EN 16644:2014 (E) 8 3.9 structure-borne power level LWsblogarithmic measure of the structure-borne power emitted in the straight pipe by a source glandless circulators 3.10 steady state temperature period period of time during which the variation of temperature on the moto

39、r and on the body of the glandless circulator is contained between limits specified by the manufacturer 3.11 booster pump any type of pump that maintains the flow 4 Symbols and units For the purpose of this document, the symbols, quantities and units given in Table 1 apply. Table 1 Symbols and units

40、 Symbol Quantity Unit g Acceleration due to gravity m/s2H Head (water gauge) m P 1Rated power input W p Pressure bar p 2max oMaximum outlet working pressure bar Q Flow rate m3/h T Temperature C TFFluid temperature at inlet port C Average velocity of water m/s Density kg/m35 Test rig 5.1 General The

41、fluid- and structure-borne powers are determined from measurement data acquired from the test rig. Components and assembly of the test-rig are described below. To get repeatable and reproducible results of the measurements, a rig, which is in accordance with or corresponds to all specifications and

42、assembly advice given here, shall be used. 5.2 Main components of test rig The test rig is illustrated in Figure 1 and its main components are given in Table 2. BS EN 16644:2014EN 16644:2014 (E) 9 Table 2 Main components of test rig No. Component Purpose 1 Glandless circulator Test object: source of

43、 pressure pulsation and vibration. 2 Vibration measurement pipe Acquisition of vibration data allowing the determination of the structure-borne power. 3 Solid anechoic termination Device absorbing structure-borne power. 4 Pressure pulsation measurement pipe Acquisition of pressure fluctuation data a

44、llowing the determination of the fluid-borne power. 5 Liquid anechoic termination Device absorbing fluid-borne power. 6 Water tank Acoustical isolation of the regulation valve. 7 Pressure vessel Device equalizing the system pressure. 8 Flow meter Measurement of flow rate 9 Regulation valve Flow rate

45、 regulation 10 Pipe supports Connecting devices of pipework with frame. 11 Frame Metal structure. Figure 1 Test rig BS EN 16644:2014EN 16644:2014 (E) 10 5.3 Specification of test rig components Table 3 provides the necessary overview of the specified components of the test rig shown in Figure 2. Tab

46、le 3 Specification of components Ref. Component/Part Qty. Specification/Remark 1 Glandless circulator 1 Pump housing 1 According to EN 162971 2 Washer 2 Non absorbing fibre type 2 Vibration measurement pipe 1 Pipe Usual commercial, Copper, ext. diam. approx. 28 mm, wall thickness 0,9 mm 1 mm 2 Union

47、 nut 2 Usual commercial 3 Insert 2 Usual commercial, soldered conn. diam. approx 28 mm 4 Accelerometer 4 Calibration according to 5.8 3 Solid anechoic termination Propagation coefficient curve according to 5.9 1 Sand box 1 Wood or plastic, wall thickness approx. 10 mm 2 Pipe cover 1 Usual commercial

48、, plastic foam, wall thickness 10 mm 3 Sand 10kg Fine grain 30 m 300 m, medium grain size 130 m 4 Pressure pulsation measurement pipe 1 Bend 4 Copper, diam. approx. 28 mm, Form A according to ISO 2016 2 Pipe Copper, ext. diam. approx. 28 mm, wall thickness 0,9 mm 1 mm usual commercial 3 Sensor adapt

49、er 2 Welding socket piece for flush mounted sensor 4 Pressure transducer 2 Calibration according to 5.8 5 Liquid anechoic termination Propagation coefficient curve acc. To 5.9 1 Terminator 2 Length 1580 mm, diam. approx. 30 mm 2 Pipe connection 4 Union, usual commercial, inox steel 6 Water tank 1 Tank 2 Non-corrosive, volume approx. 50 l 2 Support 8 Connection to frame, screw fixed 3 Intermediate connection 1 Usual commercial stainless steel or copper, ext. diam. approx. 28 mm 4 Pipe connection 2 Flexi

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