1、STD.BS1 BS EN 12109-ENGL 1779 m LbZqbb 079727Li 73T = BRITISH STANDARD Vacuum drainage systems inside buildings The European Standard EN 121091999 has the status of a British Standard ICs 91.140.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGm LAW BS EN 12109:1999 STDBBSI BS EN L
2、2L9-ENGL 1777 II Lb2qbb9 0797275 b7b been prepared under the Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 September 1999 direction of the Sector Amd.No. Date O BSI 09-1999 ISBN O 680 32622 6 BS EN 121091999 Com
3、ments National foreword This British Standard is the English language version of EN 121W1999. The UK participation in its preparation was entrusted by Technical Committee WM5, Wastewater engineering, to Subcommittee B/505/2 1, Roof drainage and sanitary pipework, which has the responsibility to: - a
4、id enquirers to understand the text, - present to the responsible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK. A list of organizations repr
5、esented on this subcommittee can be obtained on request to its secrem. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspond
6、ence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract Usem of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
7、self confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 31 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. SID-BSI BS EN L2209-ENGL 177
8、9 = Lb24bb7 079727b 502 II EUROPEAN STANDARD NORME EUROPENNE EN 12109 EUROPISCHE NORM April 1999 ICs 91.140.80 English version Vacuum drainage systems inside buildings Rseau dvacuation sous vide lintrieur des btiments von Gebuden Unterdnickentwssengssysteme innerhalb This European Standard was appro
9、ved by CEN on 3 March 1999. CEN members are bound to comply with the CENICENELEC 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 st
10、andards may be obtained on application to the Central Secretariat 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
11、to the Central Secretariat has the same status as the oficial versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Uni
12、ted Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B- 1050 Brussels O 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
13、12109:1999 E STD=BSI BS EN LZL09-ENGL Page 2 EN 12109:lW Contents Foreword Introduction 1 Scope 2 Normative references 3 Definitions 4 System description 5 Principal design factors 5. i General 5.2 Health and safety 5.3 Availabiliy 5.4 Reliability 5.5 Maintainability 5.6 Noise and odour control 5.7
14、Energy economy 5.8 Fire resistance 6 Performance 6.1 Wastewater discharge 6.2 Vacuum at line extremities 6.3 Vacuum recovery time 6.4 Automatic restart 7 Design 7.1 General 7.2 Static losses 7.3 Wastewater flow rate 7.4 Dynamic losses 7.5 Vacuum recovery 7.6 System controls 7.7 System status monitor
15、ing 8 Installation 9 Commissioning 9.1 General 9.2 Commissioning tests 1 O Maintenance 11 Verification 1 1.1 General 1 1.2 Performance requirements 1 1.3 Design requirements 1 1.4 Installation requirements 12 Assessment of general performance 1999 1b24bb O797277 44q Page 3 3 4 4 4 7 7 7 8 8 9 9 9 10
16、 10 10 10 10 10 10 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 15 0 BSI 09-1999 13 Quality control Annex A (normative) Methods of verification of compliance with the requirements of this standard Annex B (nonnative) Test procedures B.1 Tighmess tests B.2 System performance tests Annex C (n
17、ormative) Calculation of probable wastewater flow rate C. 1 Probability calculation C.2 Discharge from domestic sanitaq appliances C.3 Selection of the reduction factor (K) C.4 Vacuum toilets Annex D (informative) Vacuum drainage systems products - Requirements and verification D. 1 Performance requ
18、irements D.2 Design requirements D.3 Verification of compliance with requirements D.4 Quality assurance Annex E (informative) Applications of vacuum drainage systems E.l General E.2 System layout E.3 Support Annex F (informative) Bibliography Page 3 EN 12109:1999 15 16 17 17 17 21 21 21 21 22 23 23
19、24 26 27 28 28 28 30 31 Foreword This European Standard has been prepared by Technical Committee CENiC 165, Wastewater 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 endor
20、sement, at the latest by October 1999, and conflicting national standards shall be withdrawn at the latest by October 1999. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgiu
21、m, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Introduction This European Standard is a system standard. A vacuum drainage system is a designed system. Each system is
22、 individually designed and based upon a specification with specific design parameters for the application and the selected equipment. This European Standard contains additional information of importance to specifiers, designers, constructors and operators. This European Standard has three normative
23、and three informative annexes. Q BSI 09- I999 Page 4 EN 12109:1999 1 Scope This European Standard specifies system requirements (performance) and the principal requirements for design and installation, with related verification and test methods, for vacuum drainage systems inside buildings transport
24、ing domestic wastewater from dwellings and commercial properties, but excluding stormwater and rainwater. If requirements for products used withii the system are needed, annex D (informative) provides guidance to performance requirements, design, verification and quality assurance. The gravity syste
25、m which feeds the wastewater to the vacuum drainage system is not covered by this European Standard. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These nonnative references are cited at the appropriate places in the tex
26、t and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to appli
27、es. EN 1085, Wastewater treatment - Vocabulary. prEN 17 17, Protection against pollution ofpotable water in drinking water installations and general requirements of devices to prevent pollution by backflow. prEN 12056-2, Gravity drainage systems inside buildings - Part 2: Wastewater systems, layout
28、and calculation. EN 60204, Safey of machinery - Electrical equipment of machines. IEC 335-2-84, Safety of household and similar electrical appliances - Part 2-84: Particular requirements for toilets. 3 Definitions For the purpose of this European Standard, the definitions according to EN 1085 and th
29、e following definitions apply. 3.1 a-factor variable factor used to calculate probable static loss from theoretical static loss 3.2 discharge unit unit of measurement for the wastewater outflow of appliances 33 interface unit assembly with an interface valve and a buffer volume receiving wastewater
30、3.4 interface valve valve which admits the flow of wastewater only, or wastewater and air, into the vacuum drainage system pipeline 3.5 analysis breaking a requirement down to its constituent parts for clear evaluation 0 BSI 09- I999 STD-BSI BS EN 12107-ENGL 1997 I lb24bb9 0797280 T33 Page 5 EN 1210
31、9:1999 3.6 service connecion section of vacuum pipeline connecting an individual interface unit to the vacuum main 3.7 automatic interface unit (AIU) assembly consisting of an interface valve, buffer volume, sensor and controller 3.8 dynamic losses sum of losses caused by inertia, friction and lifts
32、 when the water is in motion 3.9 pipe profle vertical elevation of the vacuum pipeine 3.10 K-factor variable reduction factor used in design calculations to take into account the frequencies of use of sanitary appliances in different types of building 3.1 1 air-water ratio (AN-ratio) ratio of the vo
33、lume of air to the volume of wastewater passed through an interface unit for each cycle of operation 3.12 buffer volume storage volume of the interface unit which balances the incoming flow of wastewater to the output capacity of the discharge valve 3.13 reforming pocket low point in the piping prof
34、ile installed intentionally to produce a controlled slug flow 3.14 slug isolated quantity of wastewater flowing full bore through the vacuum pipeline 3.15 forwarding pump pump installed at the vacuum station to deliver the wastewater from the vacuum system 3.16 inspection visual review of drawings,
35、hardware or installation 3.17 static loss loss of vacuum due to lifts when the system is at rest 3.18 lift section of vacuum pipeline with an increase in invert level in the direction of flow 3.19 theoretical static loss static loss obtained by considering every lift full of water 8 BSI 09-1999 Page
36、 6 EN 12109:1999 3.20 vacuum any pressure below atmospheric 3.21 vacuum container container connected to the vacuum pump, the vacuum drainage pipelines and a means of discharge 3.22 vacuum drainage transportation of wastewater by vacuum 3.23 vacuum recovery time time taken, after the operation of an
37、 interface valve, for the vacuum at the valve to be restored to its operational value 3.24 vacuum generator equipment installed at the vacuum station to generate and maintain the vacuum within the system 3.25 vacuum station installation comprising vacuum generator(s), a means of discharge and contro
38、l equipment, and which may also incorporate vacuum vesseilholding tank(s) 3.26 vacuum toilet toilet incorporating an interface unit and a means of rinsing 3.27 con t roler device which, when activated by its level sensor, opens the interface valve and, after the passage of wastewater and normally ai
39、r, closes the vaive 3.28 available vacuum differential difference between the vacuum level in the vacuum station and the initial vacuum needed to operate an interface unit 3.29 avaiiability operating time of a vacuum drainage system divided by its operating time plus time out of service 3.30 data su
40、bmittal supplying detailed information supporting compliance with the requirements of this standard 3.31 probable static loss theoretical static loss multiplied by a probability factor 332 water valve controlled valve regulating the entry of flush water of a vacuum toilet O BSI 09- I999 - STD-BSI BS
41、 EN L2107-ENGL 1779 9 lbZLibb9 0797282 8Ob Page 7 EN 12109:lW 4 System description A vacuum drainage system is a draiige system under sub-atmospheric pressure where: - the wastewater is let into the pipework through interface units; - most of the air necessary for the transportation of the wastewate
42、r enters through interface units; - the interface units are normally operated by the pressure differential to atmosphere. This European Standard considers the vacuum drainage system in four system elements: - automatic interface units (A); - vacuum toilets; - pipework; - vacuum station. The system i
43、s based upon the principles of intermittent transport and immediate access to vacuum. When the interface valve is opened, the difference in pressure between the atmosphere and the main pipeline pushes the volume of water and nonnally several ties that volume of air through the service connection int
44、o the main pipeline. This creates a large local pressure differential which accelerates the water in the vicinity. As the pressure is equalized and the air is rushing through the system, it sequentially accelerates several independent masses of water that have accumulated in the low points of tbe pi
45、pework. This movement of water takes place in both directions, but the slope has a directional effect on the water flow. After a number of repeated accelerations of water slugs, the air has lost most of its kinetic energy and cannot create any more pumping action. For indoor systems, the transportat
46、ion length is normally within the reach of every interface unit. For longer systems, the interface units have to interact to provide the necessary pumping action. For a vacuum drainage system, it is necessary to sequentially generate high acceleration and self-cleansing velocities without the use of
47、 tremendous amounts of energy. NOTE A vacuum drainage system is not a reversed pressure system where all the water would be accelerated simultaneously. 5 Principal design factors 5.1 General The general performance of a vacuum drainage system is governed by its principal design factors: - safety and
48、 health; - availability; - reliability; - maintainability; - noise and odour control; - energy economy; - fire resistance. For assessment of general performance, see clause 12. Q BSI 09-1 999 STDoBSI BS EN LZLOS-ENGL 1999 LbZiibb9 0797283 742 rn Page 8 EN 12109:lW 5.2 Health and safety The principal
49、 objectives for health and safety are the following. - There shall be no danger to public health. - There shall be no danger to operating personnel. - There shall be no danger to existing adjacent structures or services. Potential hazards, identified through experience or analysis, shall be eliminated or controlled in accordance with the following order of precedence: - design to eliminate hazards; - use of safety devices; - use of warning devices; - use of special procedures, The following safety requirements apply. All electrical equipment design sha
