《BS-7316-1990.pdf》由会员分享，可在线阅读，更多相关《BS-7316-1990.pdf（70页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS 7316:1990 ISO 8010:1988 Specification for Design and construction of screw and related type compressors for the process industry Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990
2、This British Standard, having been prepared under the direction of the Machinery and Components Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 31 August 1990 BSI 03-2000 The following BSI references relate to the work on this standard: Comm
3、ittee reference MCE/8 Draft for comment 84/79276 DC ISBN 0 580 18500 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machinery and Components Standards Policy Committee (MCE/-) to Technical Committee MCE/8, upon which the following bod
4、ies were represented: British Coal Corporation British Compressed Air Society British Gas plc Construction Plant-hire Association Electricity Supply Industry in England and Wales Engineering Equipment and Materials Users Association Institute of Marine Engineers Institution of Gas Engineers Institut
5、ion of Mechanical Engineers Institution of Mining Engineers Institution of Mining and Metallurgy South Wales Institute of Engineers Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:
6、00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990 BSI 03-2000i Contents Page Committees responsibleInside front cover National forewordii 0Introduction1 1Scope1 2Field of application1 3References1 4Unit system2 5Definitions2 6Basic requirements5 7Compressor7 8Drivers and drive equipment10 9Auxiliary
7、equipment12 10Lubricant and seal liquid system15 11Control and instrumentation21 12Data sheets22 Annex A Instructions subject to agreements in the contract23 Annex B Data sheets29 Figure A typical piping and instrumentation diagram for oil-free compressor lubrication systems20 Table 111 Table 213 Pu
8、blications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990 ii BSI 03-2000 National foreword This British Standard has been prepared under the direction of the Machinery
9、 and Components Standards Policy Committee. It is identical with ISO 8010 “Compressors for the process industry Screw and related types Specifications and data sheets for their design and construction” published by the International Organization for Standardization (ISO). The Technical Committee has
10、 reviewed the provisions of ISO 2441, ISO 3989-1, ISO 3989-2, ISO 4126, ISO 7000 and ISO 7005-1 to which reference is made in the text, and has decided that they are suitable for use with this British Standard. Related British Standards to ISO 4126 are BS 1123-1 and BS 6759-1, BS 6759-2 and BS 6759-
11、3. A related British Standard to IEC 79 is BS 5501. ISO 1940, referred to in clause 2, has been superseded by ISO 1940-1:1986 which is identical to BS 6861. “Balance quality requirements of rigid motors” Part 1:1987 “Method for determination of permissible residual unbalance”. Cross-references Inter
12、national StandardCorresponding British Standard ISO 262:1973BS 3643 ISO metric screw threads Part 1:1981 Principles and basic data (Technically equivalent) ISO 898-1:1978BS 6104 Mechanical properties of fasteners Part 1:1981 Specification for bolts, screws and studs (Technically equivalent) ISO 1000
13、:1981BS 5555:1981 Specification for SI units and recommendations for the use of their multiples and of certain other units (Identical) ISO 1217:1986BS 1571 Testing of positive displacement compressors and exhausters Part 1:1987 Methods for acceptance testing (Identical) ISO 1219:1976BS 2917:1977 Spe
14、cification for graphical symbols used on diagrams for fluid power systems and components (Identical) BS 1646 Symbolic representation for process measurement control functions and instrumentation ISO 3511-1:1977Part 1:1979 Basic requirements (Identical) ISO 3511-2:1977Part 2:1983 Specification for ad
15、ditional basic requirements (Technically equivalent) ISO 3511-3:1984Part 3:1984 Specification for detailed symbols for instrument interconnection diagrams (Technically equivalent) IEC 85:1984BS 2757:1986 Method for determining the thermal classification of electrical insulation (Identical) Licensed
16、Copy: London South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990 BSI 03-2000iii A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their
17、 correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 62, an inside back cover and a back cover. This standard has been updated (see
18、copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London
19、South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990 BSI 03-20001 0 Introduction This International Standard contains two annexes in addition to the main text. Annex A, which contains instructions subject to agreements in th
20、e contract, is given for information and guidance only and is not an integral part of this International Standard. Annex B, which contains the data sheets, is an integral part of this International Standard. 1 Scope This International Standard specifies the technical requirements for the design and
21、construction of screw and related types of compressors used in the process industry. It also details the documentation requirements. 2 Field of application This International Standard applies to rotary screw and related types of compressors used in the process industry. It covers the minimum require
22、ments for dry and liquid-injected compressors and vacuum pumps with intermeshing rotors, e.g. Roots blowers. This International Standard also covers certain requirements for compressor drivers, drive equipment, lubricating systems, controls, instrumentation and auxiliary equipment. The compressors t
23、o which this International Standard applies are not normally used for critical process applications in refineries. In addition, this International Standard will not normally apply to portable and other air compressors providing air power (for pneumatic tools etc.) nor to standard utility refrigerati
24、on compressors. 3 References ISO 262, ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts. ISO 898-1, Mechanical properties of fasteners Part 1: Bolts, screws and studs. ISO 1000, SI units and recommendations for the use of their multiples and of certain other units. I
25、SO 1217, Displacement compressors Acceptance tests. ISO 1219, Fluid power systems and components Graphic symbols. ISO 1940, Balance quality of rotating rigid bodies. ISO 2441, Pipeline flanges for general use Shapes and dimensions of pressure-tight surfaces. ISO 3511, Process measurement control fun
26、ctions and instrumentation Symbolic representation Part 1: Basic requirements Part 2: Extension of basic requirements Part 3: Detailed symbols for instrument interconnection diagrams. ISO 3989, Acoustics Measurement of airborne noise emitted by compressor units including prime movers Part 1: Enginee
27、ring method for determination of sound power levels1) Part 2: Method for determination of compliance with noise limits1). ISO 4126, Safety valves General requirements. ISO 7000, Graphical symbols for use on equipment Index and synopsis. ISO 7005-1, Metallic flanges Part 1: Steel flanges1). IEC Publi
28、cation 79, Electrical apparatus for explosive gas atmospheres. IEC Publication 85, Thermal evaluation and classification of electrical insulation. 1) At present at the stage of draft. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncon
29、trolled Copy, (c) BSI BS 7316:1990 2 BSI 03-2000 4 Unit system SI units (Systme international dunits) are used throughout this International Standard (see ISO 1000). However, in addition to SI units, this International Standard also uses some non-SI units accepted by ISO 1000. These units are as fol
30、lows: 5 Definitions 5.1 General 5.1.1 oil-free, dry, compressor a compressor where the medium being compressed is isolated from the lubricant system. The rotors, synchronized by timing gears, do not touch each other or the casing and therefore require no lubricant in the compression chamber. The air
31、 or gas is not contaminated by the lubricant nor any other liquid while passing through the compressor 5.1.2 oil-free, liquid-injected, compressor a compressor where the medium being compressed is isolated from the lubricant system but where a liquid is continuously injected into the compression cha
32、mber for the purpose of oil-free lubrication, cooling and sealing. Any separation of the liquid from the air or gas is carried out after the gas-liquid mixture leaves the compressor 5.1.3 oil-flooded compressor a compressor where oil is continuously injected into the compression chamber. Any separat
33、ion of the oil from the air or gas is carried out after the gas-oil mixture leaves the compression chamber. Synchronizing gears may not be required 5.1.4 standard inlet and discharge points the points at the inlet and discharge flanges of the compressor NOTEWhen the SUPPLIER provides piping or other
34、 parts between the points of demarcation, a separate agreement should be made to define the inlet and discharge points. 5.1.5 swept volume for a displacement compressor the volume swept in one cycle by the compressing element(s) of the compressor first stage 5.1.6 displacement for a displacement com
35、pressor the volume swept by the compressing element(s) of the compressor first stage per unit of time 5.2 Pressures 5.2.1 effective (gauge) pressure the pressure measured with reference to atmospheric pressure 5.2.2 absolute pressure the pressure measured with reference to absolute zero, i.e. with r
36、eference to an absolute vacuum. It equals the algebraic sum of the atmospheric pressure and the effective pressure (static pressure or total pressure) for pressure:bar(1 bar = 105Pa) for volume:litre(1 litre = 103m3) for time:minute(1 min = 60 s) for time:hour(1 h = 3,6 103s) Licensed Copy: London S
37、outh Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990 BSI 03-20003 5.2.3 static pressure the pressure measured in a fluid under such conditions that the fluid velocity has no effect on the measurement 5.2.4 total pressure the
38、sum of the static and dynamic pressures it designates the fluid condition at which the flow energy of the fluid is converted into pressure without any losses in a stationary body of fluid. In a stationary gas, the static pressure and the total pressure are numerically equal 5.2.5 inlet pressure the
39、total mean absolute pressure at the standard inlet point NOTEThe total absolute pressure may be replaced by the static absolute pressure provided that the gas velocity and density are sufficiently low. 5.2.6 discharge pressure the total mean absolute pressure at the standard discharge point NOTEThe
40、total absolute pressure may be replaced by the static absolute pressure provided that the gas velocity and density are sufficiently low. 5.2.7 rated discharge pressure the highest discharge pressure required to meet the conditions specified by the USER for the intended service 5.2.8 design pressure
41、the maximum pressure which the component is designed to withstand safely 5.2.9 maximum allowable working pressure the maximum operating pressure which the SUPPLIERs design permits when handling the specified gas at any service conditions specified for the compressor or any part to which the term is
42、referred, such as an individual stage 5.2.10 relief valve set pressure the opening pressure on the inlet side of a relief valve NOTEFor a differential-type valve the set pressure is the pressure difference across the valve when opening commences. The downstream pressure is termed the back pressure.
43、5.3 Temperatures 5.3.1 inlet temperature the temperature at the standard inlet point of the compressor 5.3.2 discharge temperature the temperature at the standard discharge point of the compressor 5.3.3 rated discharge temperature the highest predicted operating temperature Licensed Copy: London Sou
44、th Bank University, London South Bank University, Fri Dec 08 11:29:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7316:1990 4 BSI 03-2000 5.3.4 maximum allowable working temperature the maximum gas temperature which the SUPPLIER or USER permits in the compressor, when handling the specified gas at
45、 any service conditions specified 5.3.5 design temperature the extreme temperature level(s) which the compressor is designed to withstand safely NOTEThis covers gas, coolant and ambient temperatures. 5.3.6 maximum expected discharge temperature the highest predicted operating temperature resulting f
46、rom any specified service condition, including part-load operation 5.3.7 casing design temperature range the range of temperatures to which the compressor casing may be continuously subjected at the casing design pressure 5.4 Flow rate 5.4.1 actual volume rate of flow of a compressor (deprecated: “a
47、ctual capacity”) the actual volume rate of flow of gas compressed and delivered at the standard discharge point referred to conditions of total temperature, total pressure and composition (e.g. humidity) prevailing at the standard inlet point 5.4.2 standard volume rate of flow (deprecated: “standard
48、 capacity”) the actual volume rate of flow of compressed gas as delivered at the standard discharge point, but referred to standard conditions (for temperature and pressure) 5.4.3 inlet mass rate of flow the mass flow of gas or gas mixture induced by the compressor at the standard inlet point(s) 5.4
49、.4 discharge mass rate of flow the mass flow of gas mixture delivered by the compressor at its standard discharge point(s) 5.5 Power 5.5.1 theoretical required power in a compressor without losses, the power which is theoretically required to compress a gas according to the chosen reference process, from a given inlet pressure to a given discharge pressure 5.5.2 driver coupling power the maximum power required at the driver shaft, including losses in external transmissions such as gears or belt drives when such transmissions