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1、TECHNICAL SPECIFICATION GENERAL-PURPOSE STEAM TURBINES (AMENDMENTS/SUPPLEMENTS TO API STANDARD 611) DEP 31.29.60.30-Gen. September 1983 (DEP Circular 29/99 has been incorporated) DESIGN AND ENGINEERING PRACTICE USED BY COMPANIES OF THE ROYAL DUTCH/SHELL GROUP This document is confidential. Neither t
2、he whole nor any part of this document may be disclosed to any third party without the prior written consent of Shell Internationale Petroleum Maatschappij B.V., The Hague, the Netherlands. The copyright of this document is vested in Shell Internationale Petroleum Maatschappij B.V., The Hague, the N
3、etherlands. All rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owner. PREFA
4、CE DEP (Design and Engineering Practice) publications reflect the views, at the time of publication, of: Shell International Oil Products B.V. (SIOP) and Shell International Exploration and Production B.V. (SIEP) and Shell International Chemicals B.V. (SIC) The Hague, The Netherlands, and other Serv
5、ice Companies. They are based on the experience acquired during their involvement with the design, construction, operation and maintenance of processing units and facilities, and they are supplemented with the experience of Group Operating companies. Where appropriate they are based on, or reference
6、 is made to, national and international standards and codes of practice. The objective is to set the recommended standard for good design and engineering practice applied by Group companies operating an oil refinery, gas handling installation, chemical plant, oil and gas production facility, or any
7、other such facility, and thereby to achieve maximum technical and economic benefit from standardization. The information set forth in these publications is provided to users for their consideration and decision to implement. This is of particular importance where DEPs may not cover every requirement
8、 or diversity of condition at each locality. The system of DEPs is expected to be sufficiently flexible to allow individual operating companies to adapt the information set forth in DEPs to their own environment and requirements. When Contractors or Manufacturers/Suppliers use DEPs they shall be sol
9、ely responsible for the quality of work and the attainment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal will expect them to follow those design and engineering practices which will achieve the same level of integrity
10、as reflected in the DEPs. If in doubt, the Contractor or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal or its technical advisor. The right to use DEPs is granted by SIOP, SIEP or SIC, in most cases under Service Agreements primarily with companies
11、 of the Royal Dutch/Shell Group and other companies receiving technical advice and services from SIOP, SIEP or SIC. Consequently, three categories of users of DEPs can be distinguished: 1)Operating companies having a Service Agreement with SIOP, SIEP, SIC or other Service Company. The use of DEPs by
12、 these Operating companies is subject in all respects to the terms and conditions of the relevant Service Agreement. 2)Other parties who are authorized to use DEPs subject to appropriate contractual arrangements. 3)Contractors/subcontractors and Manufacturers/Suppliers under a contract with users re
13、ferred to under 1) or 2) which requires that tenders for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards. Subject to any particular terms and conditions as may be set forth in specific agreements with users, SIOP, SIEP and S
14、IC disclaim any liability of whatsoever nature for any damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any DEP, combination of DEPs or any part thereof. The benefit of this disclaimer shall
15、 inure in all respects to SIOP, SIEP, SIC and/or any company affiliated to these companies that may issue DEPs or require the use of DEPs. Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent
16、of SIOP and SIEP, be disclosed by users to any company or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shall be returned after use, including any copies which shall only be made by users with the express prior written co
17、nsent of SIOP and SIEP. The copyright of DEPs vests in SIOP and SIEP. Users shall arrange for DEPs to be held in safe custody and SIOP or SIEP may at any time require information satisfactory to them in order to ascertain how users implement this requirement. All administrative queries should be dir
18、ected to the DEP Administrator in SIOP. NOTE: In addition to DEP publications there are Standard Specifications and Draft DEPs for Development (DDDs). DDDs generally introduce new procedures or techniques that will probably need updating as further experience develops during their use. The above req
19、uirements for distribution and use of DEPs are also applicable to Standard Specifications and DDDs. Standard Specifications and DDDs will gradually be replaced by DEPs. DEP 31.29.60.30-Gen. September 1983 Page 2 TABLE OF CONTENTS PART I.INTRODUCTION.4 PART II.GENERAL INFORMATION.5 PART III.AMENDMENT
20、S/SUPPLEMENTS TO API STANDARD 6116 SECTION 1 GENERAL 6 SECTION 2 BASIC DESIGN. 7 SECTION 3 ACCESSORIES.13 SECTION 4 INSPECTION AND TESTING.15 SECTION 6 VENDORS DATA19 PART IV.REFERENCES20 DEP 31.29.60.30-Gen. September 1983 Page 3 PART I. INTRODUCTION This specification, which is an upgrading and re
21、vision of Standard Specification ST-2-2/3 dated April 1960, contains the minimum technical requirements for general-purpose steam turbines for use in oil refineries, chemical plants, gas plants and, where applicable, in exploration, production and new ventures. This specification gives SIPM/SICM ame
22、ndments and supplements to API Standard 611, Second Edition, January 1952, General-Purpose Steam Turbines for Refinery Services. It shall be used in conjunction with data/requisition sheet DEP 31.29.61.95-Gen. for general- purpose steam turbines. As a rule the requirements of this specification shal
23、l be adhered to. However, national and/or local regulations may exist in which some of the requirements are more stringent. The contractor shall determine by careful scrutiny which of the requirements are the more stringent and which combination of requirements will be acceptable as regards safety,
24、economic and legal aspects. In all cases the contractor shall inform the principal of any deviation from the requirements of this specification which is considered to be necessary, in order to comply with national and/or local regulations. The principal may then negotiate with the authorities concer
25、ned with the object of obtaining agreement to follow this specification as closely as possible. Unless otherwise authorized by SIPM, the distribution of this specification is confined to companies belonging to or managed by the Royal Dutch/Shell Group, and to contractors and manufacturers/suppliers
26、nominated by them. All publications referred to are listed in Part IV. DEP 31.29.60.30-Gen. September 1983 Page 4 PART II. GENERAL INFORMATION This specification is written in four parts of which Part III, the principal part, gives SIPM/SICM amendments and supplements to API Std 611, Second Edition,
27、 January 1982. Problems stemming from the publication of revisions or amendments to the above standard by the American Petroleum Institute in 1983 or subsequent years shall be referred to the principal. General-purposesteamturbinesshallconformtoAPIStd611,asamendedor supplemented by this specificatio
28、n. For ease of reference, the clause (or paragraph) numbering of API Std 611 has been used throughout Part III of this specification. Clauses (paragraphs) in API Std 611 not mentioned remain unaltered. Where cross references are made, the number of the section/sub- section/clause of this specificati
29、on referred to is shown in brackets. A bullet () in the margin against certain clauses (paragraphs) in API Std 611 indicates that a decision by the principal is required. These decisions shall be indicated directly on data/requisition sheet DEP 31.29.61.95-Gen., when provisions are made for them; ot
30、herwise they shall be indicated on the data/requisition sheet(s) under the heading Additional Requirements or stated in the purchase order. DEFINITIONS For the purpose of this specification, the following definitions shall hold: Shall and Should -the word shall is to be understood as mandatory and t
31、he word should as strongly recommended to comply with the requirements of this specification. The Principal is the party which initiates the project and ultimately pays for its design and construction. The Principal* will generally specify the technical requirements. The Principal may also include a
32、n agent or consultant, authorized to act for the Principal. *For Group operating companies having a service agreement with SIPM or SICM, the term Principal shall be taken as referring to SIPM - MFEE/21. The Contractor is the party which carries out all or part of the design, engineering, procurement
33、, construction and commissioning for the project, The Principal may sometimes undertake all or part of the duties of the Contractor. The Purchaser is the party which buys the general-purpose steam turbine for its own use or as agent for the owner. The Purchaser may be either Principal or Contractor.
34、 The Manufacturer/Supplier is the party which manufactures or supplies equipment and services to perform the duties specified by the Contractor. The term Vendor is considered to be synonymous with the term Manufacturer/Supplier as defined above. DEP 31.29.60.30-Gen. September 1983 Page 5 PART III.AM
35、ENDMENTS/SUPPLEMENTS TO API STANDARD611 SECTION 1 GENERAL 1.1SCOPE 1.1.1Delete . for refinery service. at end of first sentence. 1.1.2.1Delete second sentence and replace by: They are generally applied where steam conditions will not exceed 42 bar absolute pressure and 400C temperature, or where spe
36、ed will not exceed 6000 revolutions per minute. 1.1.2.2Delete last sentence and replace by: Requirementsforspecial-purposeturbinesaredefinedinAPIStd612as amended/supplemented by DEP 31.29.60.31 -Gen. 1.3CONFLICTING REQUIREMENTS Delete this clause and replace by: In the case of conflict between docum
37、ents relating to the inquiry or order, the following priority of documents shall apply: -first priority : purchase order and variations thereto -second priority: data/requisition sheets and drawings -third priority : this specification. 1.5REFERENCED PUBLICATIONS Delete from this clause: API Std 615
38、: Sound Control of Mechanical Equipment for Refinery Services. NFPA Bulletin No. 70 National Electrical Code, Chapter 5, Articles 500, Hazardous (Classified) Locations, and 501, Class I Locations. Add to this clause: All publications referred to in this specification are listed in Part IV. DEP 31.29
39、.60.30-Gen. September 1983 Page 6 SECTION 2 BASIC DESIGN 2.1GENERAL 2.1.1Add to this clause (incorrectly numbered 2.1.1.2 in API Std 611): Turbine ratings shall not exceed the limits of the vendors design, but shall be well within the range of the manufacturers actual experience. Only equipment whic
40、h has proven its reliabilityin service is acceptable. 2.1.5Add to this clause: Single-stage turbine wheels may be of the overhung design if combined with an integral gear where a gear transmission is required. 2.1.9Delete first sentence and replace by: The combined performance of the turbine and its
41、 driven equipment after installation, shall be the responsibility of the vendor, which has been nominated as being responsible for the complete unit. 2.1.10Delete this clause and replace by: Cooling water systems shall be designed for the conditions specified in the data/requisition sheet; under no
42、circumstances shall they be designed for a working pressure of less than 5 bar ga. Provision shall be made for complete venting and draining of the system. 2.1.11Delete this clause and replace by: Noise control Turbines shall be designed to minimize the generation of noise and shall not exceed the n
43、oise limits given in the supplementary clauses below. 2.1.11.1 General All definitions, notations, measuring equipment, measuring procedures, test reporting, calculation methods and calculation procedures shall be in accordance with OCMA publication NWG-1. 2.1.11.2 Noise limits Unless otherwise spec
44、ified, the following limits shall be met at any measuring location not less than 1 m from the equipment surface: Sound Pressure Limit in dB re 20 Pa Turbine87 dB(A) Turbine + driven equipment90 dB(A) If the equipment produces impulsive and/or narrow band noise, the above limits shall be taken 5 dB(A
45、) lower, thus 82 dB(A) for the turbine and 85 dB(A) for the turbine + driven equipment. Noise levels shall have an upper tolerance of + 0 dB. The above requirements apply in absence of reverberation and background noise from other sources, and for all operating conditions between minimum flow and ra
46、ted flow. In the event that more stringent limits apply, then these will be indicated on data/requisition sheet DEP 31.10.00.94-Gen. which forms part of the requisition. In such cases, the equipment shall not exceed the sound power or sound pressure limit stated in the requisition. 2.1.11.3 Noise ab
47、atement DEP 31.29.60.30-Gen. September 1983 Page 7 Where excessive noise from equipment cannot be eliminated by low noise design, corrective measures should preferably take the form of acoustic insulation for pipes, gearboxes, etc. Where noise hoods are proposed, prior approval of the principal shal
48、l be obtained regarding construction, materials and safety requirements. Noise control measures shall cause no hindrance to operations nor any obstruction to routine maintenance activities. 2.1.11.4 Information to be submitted with the tender Themanufacturershall stateondata/requisition sheet DEP 31
49、.10.00.94-Gen.,as requested, either the sound pressure level not less than 1 m from the equipment surface in octave bands and in dB(A), or the maximum sound power level of the equipment, in octave bands and in dB(A). The manufacturer shall also indicate what special silencing measures, if any, have been applied in order to obtain these levels. 2.1.12Delete this clause and replace by: All electrical components and installations shall be suitable for the area classification and grouping specified in the data/requisition sheet. 2.2PRESSURE CASINGS 2.2.4Delete first senten