BS ISO 7183-2008 en_2108 Compressed-air dryers Specifications and testing《压缩空气干燥机.规范和测试》.pdf
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1、BRITISH STANDARD BS ISO 7183:2007 Compressed-air dryers Specifications and testing ICS 23.140 BS ISO 7183:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008 ISBN 978 0 580 53867 4 National foreword This British Sta
2、ndard is the UK implementation of ISO 7183:2007. It supersedes BS 6754:1986 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/8, Compressors, pneumatic tools, pneumatic machines and vacuum technology. A list of organizations represented on this comm
3、ittee 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. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issue
4、d since publication Date Comments Reference number ISO 7183:2007(E)INTERNATIONAL STANDARD ISO 7183 Second edition 2007-12-15 Compressed-air dryers Specifications and testing Scheurs air comprim Spcifications et essais BS ISO 7183:2007ii iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Norm
5、ative references . 2 3 Terms and definitions. 2 4 Symbols . 4 4.1 Figure symbols . 4 4.2 Symbols and units 4 4.3 Subscripts . 5 5 Reference conditions . 5 6 Standard rating parameters. 5 7 Performance tests. 6 7.1 Key performance parameters 6 7.2 Pressure dew point, flow rate and outlet temperature
6、6 7.3 Differential pressure drop 8 7.4 Power consumption 8 7.5 System air loss 9 7.6 Dealing with in-cycle variations 12 7.7 Noise 13 7.8 Tests for energy saving devices . 13 7.9 Instrument accuracy. 13 8 Uncertainties . 14 9 Test report . 14 9.1 Statement. 14 9.2 Technical data . 15 Annex A (inform
7、ative) Types of compressed-air dryers 16 Annex B (informative) Report form for dryer performance 17 Annex C (normative) Noise measurement. 18 Annex D (informative) Pressure-measuring tubes 19 Bibliography . 21 BS ISO 7183:2007iv Foreword ISO (the International Organization for Standardization) is a
8、worldwide federation of national 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
9、 on that committee. International 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 draft
10、ed in accordance with the 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 Stan
11、dard requires approval by 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 7183 was prepared by
12、 Technical Committee ISO/TC 118, Compressors and pneumatic tools, machines and equipment, Subcommittee SC 4, Quality of compressed air. This second edition of ISO 7183 revises and replaces the first edition (ISO 7183:1986), together with ISO 7183-2:1996, which have been technically revised. BS ISO 7
13、183:2007 v Introduction The scope has been expanded to cover most current types of dryers but also to allow the use of this International Standard and its test methods for any emerging technologies. Any new technologies can then be incorporated at a later revision. Exclusions to this International S
14、tandard are generally identified by reference to the definition of a dryer. Specific exclusions have been identified, however, for absorption dryers and dryer processes involving “over- compression” as the means of removing water from compressed air. The process of over-compression employs the princ
15、iple that water can be removed by compressing the air to a pressure higher than the intended working pressure thereby forcing out the water from the compressed air and then subsequently expanding the air back to the working pressure. Absorption dryers are now considered to be of minor importance as
16、a drying technique and are, therefore, not considered in this International Standard. BS ISO 7183:2007blank 1 Compressed-air dryers Specifications and testing 1 Scope This International Standard specifies the performance data that are necessary to state and applicable test methods for different type
17、s of compressed air dryers. It is applicable to compressed air dryers working with an effective (gauge) pressure of more than 50 kPa (0,5 bar), but less than or equal to 1 600 kPa (16 bar) and include the following: adsorption dryers; membrane dryers; refrigeration dryers (including drying by coolin
18、g); or a combination of these. NOTE A description of the principles of operation of the dryers within the Scope of this International Standard is given in Annex A. This International Standard identifies test methods for measuring dryer parameters that include the following: pressure dew point; flow
19、rate; pressure drop; compressed-air loss; power consumption; noise emission. This International Standard also provides partial-load tests for determining the performance of energy saving devices or measures. The mounting, operating and loading conditions of dryers for the measurement of noise are gi
20、ven in Annex C. This International Standard is not applicable to the following types of dryers or drying processes: absorption dryers; drying by over-compression; integral dryers. BS ISO 7183:20072 2 Normative references The following referenced documents are indispensable for the application of thi
21、s International Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 261, ISO general purpose metric screw threads General plan ISO 228-1, Pipe threads where pressure-tight joints
22、 are not made on the threads Part 1: Dimensions, tolerances and designation ISO 1179 (all parts), Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing ISO 1219-1, Fluid power systems and components Graphic symbols and circu
23、it diagrams Part 1: Graphic symbols for conventional use and data-processing applications ISO 2602, Statistical interpretation of test results Estimation of the mean Confidence interval ISO 2854, Statistical interpretation of data Techniques of estimation and tests relating to means and variances IS
24、O 3744, Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering method for an essentially free field over a reflecting plane 1)ISO 8573-1:2001, Compressed air Part 1: Contaminants and purity classes ISO 8573-3, Compressed air Part 3: Te
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