EN 16932-3-2018 Drain and sewer systems outside buildings - Pumping systems - Part 3 Vacuum systems.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Drain and sewer systems outside buildings - Pumping systemsPart 3: Vacuum systemsBS EN 169323:2018Incorporating corrigendum July 2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16932-3 April 2018 ICS 93.030 Sup

2、ersedes EN 1091:1996, EN 1671:1997English Version Drain and sewer systems outside buildings - Pumping systems - Part 3: Vacuum systems Rseaux dvacuation et dassainissement lextrieur des btiments - Systmes de pompage - Partie 3: Systmes sous vide Entwsserungssysteme auerhalb von Gebuden - Pumpsysteme

3、 - Teil 3: Unterdruckentwsserungssysteme This European Standard was approved by CEN on 22 January 2018. 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.

4、 Up-to-date lists and bibliographical references concerning such 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 tr

5、anslation under the responsibility of a CEN member into its own language 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, Fin

6、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STAN

7、DARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16932-3:2018 ENational forewordThis

8、 British Standard is the UK implementation of EN 169323:2018. Together with BS EN 169321:2018 and BS EN 169322:2018, it supersedes BS EN 1091:1997 and BS EN 1671:1997, which are withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/505/22.A list of organizations re

9、presented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0

10、 539 01938 4ICS 93.030Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affected31 July 2018

11、Implementation of CEN correction notice 9 May 2018: fourth paragraph of Clause 6.4 amendedBRITISH STANDARDBS EN 169323:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16932-3 April 2018 ICS 93.030 Supersedes EN 1091:1996, EN 1671:1997English Version Drain and sewer systems outside buildings

12、 - Pumping systems - Part 3: Vacuum systems Rseaux dvacuation et dassainissement lextrieur des btiments - Systmes de pompage - Partie 3: Systmes sous vide Entwsserungssysteme auerhalb von Gebuden - Pumpsysteme - Teil 3: Unterdruckentwsserungssysteme This European Standard was approved by CEN on 22 J

13、anuary 2018. 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 national standards may be

14、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 language and notified to th

15、e 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, Greece, Hungary, Iceland, Ire

16、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Manag

17、ement Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16932-3:2018 EBS EN 169323:2018EN 16932-3:2018 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3

18、Terms and definitions . 5 4 Symbols and units . 7 5 General 8 6 Planning vacuum sewer systems . 8 6.1 Basis of design 8 6.2 Location of collection chambers 8 6.3 Route and profile of vacuum pipelines 9 6.4 Hydro pneumatic design of the system 11 6.5 Vacuum station design . 13 6.5.1 General . 13 6.5.

19、2 Sizing the vacuum vessel for flushing activities 16 6.6 Power consumption 17 7 Collection chambers on vacuum sewer systems . 18 7.1 General . 18 7.2 Collection chambers 18 7.3 Interface valve units 20 7.4 Explosion safety 20 7.5 Life of membranes and seals 21 8 Vacuum pipelines . 21 8.1 Vacuum dra

20、in connections . 21 8.2 Branch connections . 21 8.3 Means of isolation 22 9 Detailed design of vacuum stations . 22 9.1 Selection of type of vacuum pumping station 22 9.2 Vacuum vessel . 23 9.3 Forwarding equipment 23 9.4 Non-return valves 23 9.5 Vacuum pumps 23 10 Controls, electrical equipment and

21、 instrumentation . 25 10.1 Collection chamber controls 25 10.1.1 Level sensor . 25 10.1.2 Interface valve controller 25 10.1.3 Monitoring of the interface valve . 26 10.2 Vacuum station control 26 10.3 Explosion safety 26 11 Installation . 27 12 Testing and verification . 27 12.1 Collection chambers

22、 27 12.2 Interface valve units 27 BS EN 169323:2018EN 16932-3:2018 (E) 3 12.3 Vacuum pipelines . 27 12.4 Commissioning tests 27 13 Operation and maintenance . 28 13.1 General . 28 13.2 Maintenance . 28 13.3 Operation and maintenance manual . 28 13.4 Power consumption . 29 Annex A (informative) Examp

23、le of a dimensioning model . 30 Annex B (normative) Testing of vacuum sewer system . 32 B.1 Testing of interface valve unit 32 B.1.1 Testing requirements 32 B.1.2 Preliminary checks 32 B.1.3 Endurance test . 32 B.1.3.1 Test rig description 32 B.1.3.2 Test procedure 32 B.1.4 Resistance to blockage te

24、st . 33 B.1.5 Submergence test . 33 B.2 Testing of pipelines 33 B.2.1 Calibrating test equipment . 33 B.2.2 General . 34 B.2.3 Interim testing . 34 B.2.4 Final testing 34 B.3 Leak testing of collection chambers. 34 B.4 Commissioning tests 34 B.4.1 General . 34 B.4.2 Noise 34 B.4.3 Minimum vacuum and

25、 vacuum recovery time . 34 B.4.4 Air/water ratio 35 B.4.5 Operation of vacuum station controls . 35 B.4.6 Replacement times . 35 Bibliography . 36 BS EN 169323:2018EN 16932-3:2018 (E) 4 European foreword This document (EN 16932-3:2018) has been prepared by Technical Committee CEN/TC 165 “Waste water

26、 engineering”, the secretariat of which is held by DIN. 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 October 2018, and conflicting national standards shall be withdrawn at the latest by October

27、 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN not be held responsible for identifying any or all such patent rights. Together with EN 16932-1:2018 and EN 16932-2:2018, this document will supersede EN 1091:1996 and EN

28、1671:1997. EN 16932:2018, Drain and sewer systems outside buildings Pumping systems, contains the following parts: Part 1: General requirements; Part 2: Positive pressure systems; Part 3: Vacuum systems. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the f

29、ollowing countries 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, Netherland

30、s, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 169323:2018EN 16932-3:2018 (E) 5 1 Scope This European Standard specifies requirements for design, construction and acceptance testing of wastewater pumping systems in d

31、rain and sewer systems outside the buildings they are intended to serve. It includes pumping systems in drain and sewer systems that operate essentially under gravity as well as systems using either positive pressure or partial vacuum. This document is applicable to vacuum drain and sewer systems. 2

32、 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including

33、any amendments) applies. EN 476, General requirements for components used in drains and sewers EN 16323:2014, Glossary of wastewater engineering terms EN 16932-1:2018, Drain and sewer systems outside buildings Pumping systems Part 1: General requirements EN 16932-2:2018, Drain and sewer systems outs

34、ide buildings Pumping systems Part 2: Positive pressure systems EN 16933-2, Drain and sewer systems outside buildings Design Part 2: Hydraulic design 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 16323, in EN 16932-1 and the following apply. ISO and

35、 IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp Note 1 to entry: Certain key definitions from EN 16323:2014 have been repeated bel

36、ow for clarity. The following additional terms used in this document are defined in EN 16323: collection tank; pumping station; domestic wastewater; relevant authority; extraneous flow; rising main; gradient; runoff; gravity system; self-cleansing; infiltration; sewer; maintenance; sewer system. non

37、-domestic wastewater; Note 2 to entry: The following terms used in this standard are defined in EN 16932-1: collection chamber; level sensor; BS EN 169323:2018EN 16932-3:2018 (E) 6 controller; lift section; forwarding pump; profile; interface valve; pump; pump unit; vacuum drain; slope section; vacu

38、um sewer; vacuum generator; vacuum station, vacuum pipeline; vacuum vessel. 3.1 air/water ratio (AWR) ratio of the air volume at standard temperature and pressure to the volume of wastewater 3.2 batch volume wastewater volume in a collection tank that is removed during an evacuation cycle 3.3 foul w

39、astewater wastewater comprising domestic wastewater and/or industrial wastewater SOURCE: EN 16323:2014, 2.1.2.6 3.4 interface valve unit valve and controller in a collection chamber admitting wastewater and air into a vacuum sewer through a vacuum drain 3.5 length specific population density total p

40、opulation connected to a vacuum sewer, including its branches, divided by the length of the vacuum sewer, not including side branches 3.6 surface water water from precipitation, which has not seeped into the ground and is discharged to the drain or sewer system directly from the ground or from exter

41、ior building surfaces SOURCE: EN 16323:2014, 2.1.1.3 3.7 vacuum recovery time time taken, after the operation of an interface valve, for the sub-atmospheric pressure at the valve to be restored to a value sufficient to operate the valve again 3.8 wastewater water composed of any combination of water

42、 discharged from domestic, industrial or commercial premises, surface run-off and accidentally any sewer infiltration water SOURCE: EN 16323:2014, 2.3.10.65 BS EN 169323:2018EN 16932-3:2018 (E) 7 4 Symbols and units AWR air/water ratio, dimensionless - D internal diameter of the pipe (bore) in metre

43、s m Diinternal diameter of the pipe (bore) in section i (each section extending from a high point to the next downstream high point), in metres m fAmaximum start frequency of the vacuum pump per hour 1/h fWmaximum start frequency of the forwarding pump per hour 1/h g acceleration due to gravity, in

44、metres per second squared m/s2 Hptotal head at the pump unit, in metres m hRmaximum hydrostatic head difference at a lift section, in metres m hRmaximum hydrostatic head difference along the connected vacuum pipelines, in metres m J2,igradient of the slope section in section I, dimensionless - L1len

45、gth of the lift section, in metres m L2length of the slope section, in metres m L1,ilength of the lift section at the end of section I, in metres m LVSlength of the vacuum sewer, in metres m NAnumber of vacuum pumps NWWnumber of forwarding pumps PApower consumption of the vacuum pumps, in Watts W PW

46、Wpower consumption of the forwarding pumps, in Watts W paaambient air pressure, in kilopascals kPa; pivabsolute pressure at the interface valve, in kilopascals kPa which is typically a value of 75 kPa pmaxmaximum absolute pressure in the vacuum vessel, in kilopascals kPa pminminimum absolute pressur

47、e in the vacuum vessel, in kilopascals kPa QAmaximum air flow at standard temperature and pressure, in litres per second l/s QA.pcapacity of each vacuum pump at standard temperature and pressure, in litres per second l/s QA,p,ssuction capacity of the vacuum pump at the average working pressure of th

48、e system, in litres per second l/s QWWdesign wastewater flow, in litres per second l/s QWW,inincoming wastewater flow rate, in litres per second l/s QWW,pcapacity of each forwarding pump, in litres per second l/s. BS EN 169323:2018EN 16932-3:2018 (E) 8 QWW,flflow of the flushed wastewater, in litres

49、 per second l/s R minimum bending radius of a vacuum pipeline, in metres m SF safety factor between 1,2 and 1,5. tflflushing time, in seconds s; VAminimum volume in the vacuum vessel provided for air, in litres l VASallowance for the storage volume in the vacuum sewer, which is no more than half of the volume of those last slope sections of the vacuum sewers, along which the maximum hydrostatic pressure difference is less than pmax pmin. Vm