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1、BRITISH STANDARD BS EN 15159-3:2006 Vitreous and porcelain enamels Glass-lined apparatus for process plants Part 3: Thermal shock resistance The European Standard EN 15159-3:2006 has the status of a British Standard ICS 25.220.50; 71.120.10 ? Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08
2、:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 15159-3:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48658 3 National foreword This British Standard is the official English language version of
3、EN 15159-3:2006. The UK participation in its preparation was entrusted to Technical Committee STI/35, Vitreous enamel coatings, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards w
4、hich implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publi
5、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internation
6、al/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page,
7、 pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontroll
8、ed Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15159-3 July 2006 ICS 25.220.50; 71.120.10 English Version Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 3: Thermal shock resistance Emaux vitrifis - Appareils maills pour les installations indus
9、trielles - Partie 3 : Rsistance au choc thermique Emails und Emaillierungen - Emaillierte Apparate fr verfahrenstechnische Anlagen - Teil 3: Temperaturschockbestndigkeit This European Standard was approved by CEN on 12 June 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulati
10、ons 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 obtained on application to the Central Secretariat or to any CEN member. This Europ
11、ean 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 the Central Secretariat has the same status as the official versions. CEN members are the natio
12、nal standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United King
13、dom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15159-3:2006: E Li
14、censed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 2 Contents Page Foreword3 1 Scope4 2 Terms and definitions .4 3 Thermal shock diagram 5 4 Diagram for heating and cooling7 5 Quality designation .8 Annex A (informative) Expla
15、natory notes.9 Bibliography. 10 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 3 Foreword This document (EN 15159-3:2006) has been prepared by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings”, the s
16、ecretariat of which is held by BSI. 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 January 2007, and conflicting national standards shall be withdrawn at the latest by January 2007. EN 15159 is c
17、omprised of the following parts, under the general heading Vitreous and porcelain enamels Glass-lined apparatus for process plants Part 1: Quality requirements for apparatus, components, appliances and accessories Part 2: Designation and specification of resistance to chemical attack and thermal sho
18、ck Part 3: Thermal shock resistance According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
19、 Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:200
20、6 (E) 4 1 Scope This European Standard specifies requirements on thermal shock resistance as well as heating and cooling procedures of standardised glass-lined apparatus, components, accessories, and glass-lined pipes primarily used for process equipment in chemical plants. It specifies the limits o
21、f thermal shock resistance using diagrams (see Figure 1 and Figure 2). For glass-lined steel, a difference is made between a thermal shock on the glass-lined side (by charging an apparatus) versus a thermal shock on the steel side (by heating and cooling an apparatus). This European Standard applies
22、 to operating temperatures from 25 C to + 230 C. This European Standard is only applicable to enamelled unalloyed and low-alloy carbon steels. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 glass-lined steel composite material produced by sm
23、elting a vitreous and porcelain enamel coat onto a steel substrate 2.2 shock medium substance (e.g. steam, aqueous liquids or solids) having a higher or lower temperature than that of the enamel and thus causing a sudden temperature change when brought into contact with the glass-lined surface 2.3 t
24、hermal shock sudden change of temperature either on the glass-lined side or the steel side of the enamel resulting from contact with a shock medium 2.4 wall temperature, TW average steel temperature in degrees Celsius, of the enamel NOTE The wall temperature is often equivalent to the temperature of
25、 the heating or cooling medium entering the jacket of the apparatus. 2.5 product temperature, TP temperature, in degrees Celsius, of the product which is inside the apparatus in contact with the glass-lined surface or is to be charged into the apparatus 2.6 temperature of heating or cooling medium,
26、THC temperature, in degrees Celsius, of the medium (e.g. water, steam, heat transfer oil), which is charged into the jacket of the apparatus for heating or cooling NOTE Where steam is the heating medium, the temperature of the heating or cooling medium is the condensation temperature at the particul
27、ar actual pressure in the jacket of the apparatus. EXAMPLE For saturated steam excess pressure of 0,6 MPa, THC = 165 C. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 5 3 Thermal shock diagram The thermal shock diagram (
28、see Figure 1) defines the limits of thermal shock for a shock medium brought into contact with the glass-lined surface (e.g. when a product is charged into the apparatus and the heating or cooling medium is in the jacket or half pipe coil jacket). These limits of thermal shock depend on the wall tem
29、perature, TW, and the product temperature, TP. NOTE The values defined in the diagram were calculated on the basis of nearly infinitely high heat transfer coefficients approximately found with aqueous shock media. Tables 1 and 2 give examples showing the corresponding wall temperature and maximum pr
30、oduct temperature. If the products (e.g. gases, solids, highly viscous fluids) have a relatively low heat transfer coefficient, higher thermal shock limits may be permitted in accordance with the manufacturer (see Annex A). Table 1 Charging hot product into a cold apparatus Wall temperature TW Maxim
31、um product temperature TP (rounded) Example C C 1 - 20 130 2 0 150 3 20 165 4 40 180 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 6 - 50 0 50 100 150 200 250 - 50050100150 5 6 7 200250 8 1 2 3 4 X Y Key X Wall temperat
32、ure, TW, C Y Product temperature, TP, C Figure 1 Thermal shock diagram for examples 1 to 8 (see Tables 1 and 2) (thermal shock on the glass-lined side of the steel) Table 2 Charging cold product into a hot apparatus Wall temperature TW Minimal product temperature TP (rounded) Example C C 5 120 -25 6
33、 140 -5 7 160 20 8 180 50 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 7 4 Diagram for heating and cooling The diagram for heating and cooling (see Figure 2) defines the limits of thermal shock for a shock medium of th
34、e enamel brought into contact with the steel wall of the enamel (e.g. when a heating or cooling medium is charged into the jacket or the half pipe coil jacket of an apparatus filled with product). These limits of thermal shock depend on the temperature of the heating or cooling medium, THC, and of t
35、he product, TP. NOTE The values defined in the diagram were calculated on the basis of nearly infinitely high temperature transfer coefficients for both the product and the heating or cooling medium. Such coefficients are approximately found with aqueous product, steam as a heating medium or water a
36、s a cooling medium. If the products (e.g. gases, solids, highly viscous fluids) have a relatively low heat transfer coefficient, higher thermal shock limits for heating may be permitted in accordance with the manufacturer. If relatively low heat transfer coefficients prevail in the jacket (e.g. if h
37、eat transfer oil is used as shock medium instead of condensing steam or water), extended thermal shock limits than those shown in Figure 2 may be permitted in accordance with the manufacturer (see Annex A). Tables 3 and 4 give examples showing the corresponding maximum product temperature and heatin
38、g and cooling temperature. - 50 0 50 100 150 200 250 - 50050100150 13 14 15 200250 16 9 10 11 12 X Y Key X Product temperature, TP, C Y Temperature of heating/cooling medium, THC, C Figure 2 Diagram for heating and cooling for examples 9 to 16 (see Tables 3 and 4) (thermal shock on the steel-side of
39、 the enamel) Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 8 Table 3 Charging heating medium in the jacket or half pipe coil jacket of a cold apparatus Product temperature TP Maximum temperature of heating medium THC Ex
40、ample C C 9 - 20 125 10 0 145 11 20 165 12 40 175 Table 4 Charging cooling medium in the jacket of a hot apparatus or half pipe coil jacket Example Product temperature TP Minimum temperature of cooling medium THC C C 13 120 - 20 14 140 0 15 160 20 16 180 40 If an intended temperature change exceeds
41、the limits in the diagram (see Figure 2), this operation shall be carried out in steps. EXAMPLE Heating a cold apparatus with a product temperature of 0 C by using saturated steam at a temperature of 165 C: First step: Charge steam at a pressure of 0,3 MPa into the jacket until the product temperatu
42、re exceeds 25 C. Second step: Switch to steam at a pressure of 0,6 MPa and heat until the product temperature reaches 165 C. 5 Quality designation Glass-lined steel apparatus, components and pipes conforming to this European Standard shall be designated as follows: Resistance to thermal shock in acc
43、ordance with EN 15159-3. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 9 Annex A (informative) Explanatory notes The thermal shock resistance of a glass-lined apparatus results from several different factors such as the
44、 physical properties of the enamel, the material characteristics of the steel, the design of the apparatus, the enamelling process as well as the service conditions. The data on thermal shock resistance stated in this European Standard apply to most glass-lined apparatus in technical service based o
45、n the following conditions: a) Apparatus design in accordance with EN 15159-1; design of flanged pipes and flanged fittings in accordance with DIN 2873 (a permitted operating pressure from 0,1 MPa to 0,6 MPa and a permitted operating temperature from 25 C to 230 C inside the apparatus or the jacket,
46、 respectively). b) Base material is unalloyed or low-alloy carbon steel which can be glass-lined with minimum yield strength of 210 N/mm2. In many cases this value determines the limits of thermal shock in heating and cooling as shown in Figure 2. c) The manufacture of the apparatus and the pipe fit
47、tings complies with the quality requirements in EN 15159-1. d) At the moment of thermal shock, the pressure ranges from 0,1 MPa to 0,6 MPa in the apparatus and in the jacket. Deviations from these general conditions or from any other definitions cited in this European Standard can confined or extend
48、 the limits of both thermal shock diagrams. In case, special agreements shall be made between manufacturer and user prior to an initial service of an apparatus. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 15159-3:2006 (E) 10 Bibliogra
49、phy 1 EN 15159-1, Vitreous and porcelain enamels Glass-lined apparatus for process plants Part 1: Quality requirements for apparatus, components, appliances and accessories 2 DIN 2873, Flanged steel pipes and flanged steel fittings glass-lined PN 10 and PN 25 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:18:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Fri