1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 13349:2010Fans Vocabulary anddefinitions of categories (ISO13349:2010)BS EN ISO 13349:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementati
2、on of EN ISO13349:2010. It supersedes BS EN ISO 13349:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/17, Fans.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to
3、 include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 63396 6ICS 01.040.23; 23.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStand
4、ards Policy and Strategy Committee on 31 October 2010.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13349 July 2010 ICS 01.040.23; 23.120 Supersedes EN ISO 13349:2008English Version Fans - Vocabulary and definitions of categories (ISO 1
5、3349:2010) Ventilateurs - Vocabulaire et dfinitions des catgories (ISO 13349:2010) This European Standard was approved by CEN on 9 June 2010. 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 nat
6、ional standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in
7、 any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN 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,
8、 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 Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORM
9、ALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13349:2010: EBS EN ISO 13349:2010EN ISO 13349:2010 (E) 3 Foreword This document
10、(EN ISO 13349:2010) has been prepared by Technical Committee ISO/TC 117 “Fans“ in collaboration with Technical Committee CEN/TC 156 “Ventilation for buildings” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of a
11、n identical text or by endorsement, at the latest by January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. 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 b
12、e held responsible for identifying any or all such patent rights. This document supersedes EN ISO 13349:2008. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
13、Croatia, 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 the United Kingdom. Endorsement notice The t
14、ext of ISO 13349:2010 has been approved by CEN as a EN ISO 13349:2010 without any modification. BS EN ISO 13349:2010ISO 13349:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 3.1 Fans General .1 3.2 Fan insta
15、llation categories according to the arrangement of ducting 2 3.3 Types of fan according to their function.2 3.4 Fan types according to the fluid path within the impeller.3 3.5 Types of fan according to operating conditions5 3.6 Fan elements7 4 Symbols and units.8 4.1 Multiples of primary units.9 4.2
16、 Units of time.9 4.3 Temperature of air or gas .9 5 Fan categories .9 5.1 General .9 5.2 Suitability for the fan pressure 9 5.3 Suitability of construction 10 5.4 Drive arrangements.12 5.5 Inlet and outlet conditions16 5.6 Method of fan control16 5.7 Designation of direction of rotation and position
17、 of parts of the fan assembly.17 5.8 Characteristic dimensions and component parts18 Annex A (informative) Examples .41 Bibliography43 BS EN ISO 13349:2010ISO 13349:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of n
18、ational standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Inter
19、national organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the
20、 rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by
21、 at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 13349 was prepared by Technical Committee ISO
22、/TC 117, Fans. This second edition cancels and replaces the first edition (ISO 13349:1999), which has been technically revised. BS EN ISO 13349:2010ISO 13349:2010(E) ISO 2010 All rights reserved vIntroduction This International Standard reflects the importance of a standardized approach to the termi
23、nology of fans. The need for an International Standard has been evident for some considerable time. To take just one example, the coding of driving arrangements differs from manufacturer to manufacturer. What one currently calls arrangement no. 1 can be known by another as arrangement no. 3. The con
24、fusion for the customer is only too apparent. For similar reasons, it is essential to use standardized nomenclature to identify particular parts of a fan. Wherever possible, in the interests of international comprehension, this International Standard is in agreement with similar documents produced b
25、y Eurovent, AMCA, VDMA (Germany), AFNOR (France) and UNI (Italy). They have, however, been built on where the need for amplification was apparent. Use of this International Standard will lead to greater understanding among all parts of the air-moving industry. This International Standard is intended
26、 for use by manufacturers, consultants and contractors. BS EN ISO 13349:2010BS EN ISO 13349:2010INTERNATIONAL STANDARD ISO 13349:2010(E) ISO 2010 All rights reserved 1Fans Vocabulary and definitions of categories 1 Scope This International Standard defines terms and categories in the field of fans u
27、sed for all purposes. It is not applicable to electrical safety. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docume
28、nt (including any amendments) applies. ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements ISO 5801:2007, Industrial fans Performance testing using standardized airways IS
29、O 5802:2001, Industrial fans Performance testing in situ ISO 13351, Fans Dimensions 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5167-1 and ISO 5801 and the following apply 3.1 Fans 3.1.1 fan rotary-bladed machine that receives mechanical energy a
30、nd utilizes it by means of one or more impellers fitted with blades to maintain a continuous flow of air or other gas passing through it and whose work per unit mass does not normally exceed 25 kJ/kg NOTE 1 The term “fan“ is taken to mean the fan as supplied, without any addition to the inlet or out
31、let, except where such addition is specified. NOTE 2 Fans are defined according to their installation category, function, fluid path and operating conditions. NOTE 3 If the work per unit mass exceeds a value of 25 kJ/kg, the machine is termed a turbocompressor. This means that, for a mean stagnation
32、 density through the fan of 1,2 kg/m3, the fan pressure does not exceed 1,2 25 kJ/kg, i.e. 30 kPa, and the pressure ratio does not exceed 1,30 since atmospheric pressure is approximately 100 kPa. 3.1.2 bare shaft fan fan without drives, attachments or apperturbances See ISO 12759. BS EN ISO 13349:20
33、10ISO 13349:2010(E) 2 ISO 2010 All rights reserved3.1.3 driven fan impeller fitted to or connected to a motor, with or without a drive mechanism, a housing or a means of variable speed drive See ISO 12759. 3.2 air abbreviated term for the expression “air or other gas” 3.3 standard air by convention,
34、 air with a density of 1,2 kg/m33.4 Fan installation categories according to the arrangement of ducting See Figure 1. 3.4.1 installation category A installation with free inlet and free outlet with a partition See ISO 5801 and ISO 5802. 3.4.2 installation category B installation with free inlet and
35、ducted outlet See ISO 5801 and ISO 5802. 3.4.3 installation category C installation with ducted inlet and free outlet See ISO 5801 and ISO 5802. 3.4.4 installation category D installation with ducted inlet and ducted outlet See ISO 5801 and ISO 5802. 3.4.5 installation category E installation with f
36、ree inlet and free outlet without a partition 3.5 Types of fan according to their function 3.5.1 ducted fan fan used for moving air within a duct NOTE This fan can be arranged in installation category B, C or D (see Figures 2, 3, 4 and 5). 3.5.2 partition fan fan used for moving air from one free sp
37、ace to another, separated from the first by a partition having an aperture in which or on which the fan is installed NOTE This fan can be arranged in installation category A (see Figure 6). BS EN ISO 13349:2010ISO 13349:2010(E) ISO 2010 All rights reserved 33.5.3 jet fan fan used for producing a jet
38、 of air in a space and unconnected to any ducting See Figure 7. NOTE The air jet can be used, for example, for adding momentum to the air within a duct, a tunnel or other space, or for intensifying the heat transfer in a determined zone. 3.5.4 circulating fan fan used for moving air within a space w
39、hich is unconnected to any ducting and is usually without a housing See Figure 8. 3.5.5 air curtain unit air moving device which produces an air curtain See Figure 30. 3.5.5.1 air curtain airstream directionally controlled airstream, moving across the entire height and width of an opening, which can
40、 reduce the infiltration or transfer of air from one side of the opening to the other, and inhibits insects, dust or debris from passing through 3.6 Types of fan according to the fluid path within the impeller 3.6.1 centrifugal fan fan in which the air enters the impeller with an essentially axial d
41、irection and leaves it in a direction perpendicular to this axis See Figure 2. NOTE 1 The centrifugal fan is also known as a radial-flow fan. NOTE 2 The impeller can have one or two inlet(s) and might include a shroud and/or a backplate (centreplate) (see Figure 16). NOTE 3 The impeller is defined a
42、s “backward-curved or inclined”, “radial” or “forward-curved”, depending on whether the outward direction of the blade at the periphery is backward, radial or forward relative to the direction of the rotation (see Figures 9 and 16). NOTE 4 A centrifugal fan can be of the low-, medium- or high-pressu
43、re type, according to the aspect ratio of fan inlet diameter to outside diameter of the impeller. These terms indicate that the pressure generated at a given flow rate is low, medium or high. NOTE 5 Figure 9 shows a cross-section through a family of impellers having the same inlet diameter. Fans wit
44、h ratios of fan inlet/outside impeller diameter of greater than approximately 0,63 mm are considered “low aspect ratio”, and lower than approximately 0,4 mm are considered “high aspect ratio”. Medium aspect ratio centrifugal fans are intermediate between these two. NOTE 6 The impeller diameter and t
45、he casing scroll radii increase with the pressure range for which the fan is designed. NOTE 7 These categories are also affected by the ability to run at the necessary peripheral speed (see 5.2 and Table 1). BS EN ISO 13349:2010ISO 13349:2010(E) 4 ISO 2010 All rights reserved3.6.2 axial-flow fan fan
46、 in which the air enters and leaves the impeller along essentially cylindrical surfaces coaxial with the fan See Figure 3. NOTE 1 An axial-flow fan can be of the low-, medium- or high-pressure type, according to the aspect ratio of hub diameter to outside impeller diameter. These terms indicate that
47、 the pressure generated at a given flow rate is low, medium or high. NOTE 2 Figure 10 shows a cross-section through a family of impellers having the same outside diameter. Fans with ratios of hub/outside impeller diameter of less than approximately 0,4 mm are considered “low aspect ratio”, and great
48、er than approximately 0,71 mm are considered “high aspect ratio”. Medium aspect ratio axial fans are intermediate between these two figures. NOTE 3 These categories are also affected by the ability to run at the necessary peripheral speed. 3.6.2.1 contra-rotating fan axial-flow fan which has two imp
49、ellers arranged in series and rotating in opposite directions See Figure 32. 3.6.2.2 reversible axial-flow fan axial-flow fan that is specially designed to rotate in either direction, regardless of whether or not the performance is identical in both directions 3.6.2.3 propeller fan axial-flow fan having an impeller with a small number of broad blades of uniform material thickness and designed to operate in an orifice 3.6.2.4 plate-mounted axial-flow fan axial-flow fan in which the impeller rotates in an orifice or spigot of relatively sh
