API 617-1995 Centrifugal Compressor

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Transcript of API 617-1995 Centrifugal Compressor

Date of Issue: June 15,1998 Affected Publication: API Standard 617, Centrifugal Compressorsfor Petroleum, Chemical, and Gas Service Industries, Sixth Edition, February 1995.

ERRATAPage 2, Figure 1 On curve showing compressor ratedpoint, change superscript referencefrom note 7 to: note 3. On Trip speed-gas turbine. Change superscript note 4 to: note 5. NG:S 3: ctc!zfzrencc (see. 1.4.4). Note 7: delete Page 3, Section 1.5.1, Delete ANSI B1.20.3 Under API listing, add RP 684. Page 7, Section 2.2.10, Fourth line, replace O-ringsor ring... with O-rings with ring. Last sentence, change to read: Gasket materials shall be suitable..... Page 8, Section 2.4.2.2, 2nd sentence, change to read, Steel flanges larger than 24 inches shall conform to ASME B 16.47. Page 8, Section 2.4.2.2.2, Replace sentence with thefollowing: Figures that are thicker or have a larger outside diameter than that required by ANSI B16.5 and ASh4E B16.47.Page 8, Section 2.4.2.3, kepiace first sentence with uie foliowing: Connecrionsother Ulanthose covered by AKSi B16.5 or ASME B16.47 require the purchasers approval.

Page 8, Section 2.4.3.5.2, Delete ANSI BI.20.3 and replace with: ASME B 1.20.1. Page 9, Section 2.6.7, ird line down replace: casewith cast. Page 9, Section 2.6.11, Fijh line down delete the comma {,) afrer impeller. Page IO,Section 2.7.3.4, In definition o P; change ratedpowerto: normal power. f

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%&e 11, Scction 2.8,

Heading should read: Shaft End Seals Page 18, Section 2.9. I . 6, Replace reference 2.8.2.5 with: 2.9.2.5 , Page 19, Section 2.9.2.4, item 6, Replace Equation2 with: shown in Figures 8A and 8B . Page 20, Section 2.9.2.4, (item b),second to last line, Replace Figure 2 with: Figure SA and SB. Page 20, Section 2.9.2.4, (item d), 6th line, Change ...of2.9.2.4, item b, the location... to read: ...of2.9.2.5,additional Bode plots shall be provided. The location.. .

Page 20, Section, 2.9.2.4, (item d), 9th line, Add afer the words 2.9.2.4, Item b the words: %ut shall not exceed 8 times the value determined from Equation 3.Page 20; Section 2.9.2.4, fitem e), Afrer Unless otherwise specified in thejrst line, add: for between bearing compressors (beam type) only, a stiffness.. ..

Page 20, Section 2.9.2.5, (item c),4th line, Replace equal to the following with: defined by Equation 4. Page 20, Section 2.9.2.5, (item d), 4th line, Change equalto thefollowingto read: defined by Equation 5 and number the following equation as 5. Page 21, Section 2.9.3.1, 5th line, Change (see 4.3.3) to: (see 4.3.4). Page 21, Section 2.9.3.1, (item b), 2nd line, Change ltemb to: t md. Ie Page 21, Section 2.9.3.4, Change 3rd sentence, which continues on page 22to read: However the unbalance used shall be no less than twice, nor more than 8 times, the unbalance limit specified in 2.9.5.2. Page 22, Section 2.9.4.1, (item a), Replace with: Unbalance and pitch line runout of gearing. Section 2.9.5.2, last line before the equation at the top ofpage 23, change asfollows to read: using Equation and correct the equations number from 4 to 6.

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Page 23, Section 2.9.5.5, Change 7th line Equation 5 to read: Equation 7 and correct the equation numberfrom 5 to: 7. Page 23, Section 2.9.5.7, 3rd line, Change Equation 5 to read: Equation 7 Page 24, Section 2.11.1.9: Move Noteto end of Section 2.1 1.1.9. Page 25, Section 2.11.2.9.5, 3rd line, Change reference to: 2.1 1.4. Page 25, Section 2.11.4.2, Place a period afer ... shall apply Delete: exceptas noted and reference to: 4.2.3. Page 27, Section 3.1.4, Delete the bullet symbol Page 27, Section 3.2.4, Add the bullet symbol Page 32, Section 3.3.2.5, Delete the bullet symbol Page 32, Section 3.3.3.1, last line, Change referencefrom 3.3.2 to: 3.3.1. Page 33, Section 3.4.4.1, Add the bullet symbol Page 35, Section 3.4.6.2, 3rd sentence, Change the reference to read: (see 2.1.15). Page 40, Section 4.3.5.2, Add as a last sentenence, prior to the note: The test shall be held at that pressure for a minimum of 30 minutes. Page 41, Section 4.4.1, Add the bullet symbol Page 41, Section 4.4.3.10, Add the bullet symbol Page 50, Appendix A Data Sheets, line 37, Add afrer (2.9.I . 7): (I.4.2.3)(2.I.2)

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Maximum

U,= 6350 W,/N

U = 6350( W,+ WJ/N

A -

4W 7

4w*tuU = 6350( W,+ WJ/N

,-' '

\?p.

U2= 6350 WJN

TRANSLATORYFIRSTRIGID

CONICAL, ROCKINGSECOND RIGID

.&..U, = 6350 W,/N

w,FIRST BENDING

W I

iusSECOND BENDING

U, = 6350 WJN

w*

OVERHUNG,CANTILIEVERED

OVERHUNG,RIGID

Figure 8A-Typical Mode Shapes ( IUnits) S

w,

Wa

TRANSLATORYFIRST RIGID

CONICAL, ROCKINGSECOND RIGID

tuU = 4(W,+W2)/N

WI

W a

&WI

U, = 4 W,/N

w*

U2=4W2/N

RRST BENDING

SECOND BENDING

OVERHUNG,CANTILIEVERED

OVERHUNG,RIGID

Figure 8B-Typical Mode Shapes (US.Customary Units)

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Page 56, Appendix A Data Sheets, line 37, Addafrer (2.9.I.7) :(1.4.2.3)(2.1.2) Page 79,Appendix D, 0.3.1, Correct the equations numberfrom 5 to: 6. Page 88, Fig E-2: Change all paragraph referencesfrom 2.8.x.x.x to: 2.9.x.x.x.

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~~

A P I STD*bL7 95

m

0732290 0543428 b y 0

Centrifugal Compressors for Petroleum, Chemical, and Gas Service Industries

API STANDARD 617 SIXTH EDITION, FEBRUARY 1995

American Petroleum Institute 1220 L Street, Northwest Washington, D.C. 20005

1 1

COPYRIGHT American Petroleum Institute Licensed by Information Handling Services

A P I STDabL7 95

O732290 O543429 587

m

Centrifugal Compressors for Petroleum, Chemical, and Gas Service Industries

Manufacturing, Distribution and Marketing Department

API STANDARD 617 SIXTH EDITION, FEBRUARY 1995

American Petroleum Institute

COPYRIGHT American Petroleum Institute Licensed by Information Handling Services

~~

A P I STD*bL7 95

0732290 0543430 2 T

SPECIAL NOTES1. API PUBLICATIONS NECESSARILY ADDRESS PROBLEMS OF A GENERAL NATURE. WITH RESPECT TO PARTICULAR CIRCUMSTANCES, LOCAL, STATE, AND FEDERAL LAWS AND REGULATIONS SHOULD BE REVIEWED.

2. API IS NOT UNDERTAKING TO MEET THE DUTIES OF EMPLOYERS, MANUFACTURERS, OR SUPPLIERS TO WARN AND PROPERLY TRAIN AND EQUIP THEIR EMPLOYEES, AND OTHERS EXPOSED, CONCERNING HEALTH AND SAFETY RISKS AND PRECAUTIONS,NOR UNDERTAKING THEIR OBLIGATIONS UNDER LOCAL, STATE, OR FEDERAL LAWS.3. INFORMATION CONCERNING SAFETY AND HEALTH RISKS AND PROPER PRECAUTIONS WITH RESPECT TO PARTICULAR MATERIALS AND CONDITIONS SHOULD BE OBTAINED FROM THE EMPLOYER, THE MANUFACTURER OR SUPPLIER OF THAT MATERIAL, OR THE MATERIAL SAFETY DATA SHEET.4. NOTHING CONTAINED IN ANY API PUBLICATION IS TO BE CONSTRUED AS GRANTING ANY RIGHT, BY IMPLICATION OR OTHERWISE, FOR THE MANUFACTURE, SALE, OR USE OF ANY METHOD, APPARATUS, OR PRODUCT COVERED BY LETTERS PATENT. NEITHER SHOULD ANYTHING CONTAINED IN THE PUBLICATION BE CONSTRUED AS INSURING ANYONE AGAINST LIABILITY FOR INFRINGEMENT OF LETTERS PATENT.

5 . GENERALLY, API STANDARDS ARE REVIEWED AND REVISED, REAFFIRMED, OR WITHDRAWN AT LEAST EVERY FIVE YEARS. SOMETIMES A ONETIME EXTENSION OF UP TO TWO YEARS WILL BE ADDED TO THIS REVIEW CYCLE. THIS PUBLICATIONWILL NO LONGER BE IN EFFECT FIVE YEARS AFTER ITS PUBLICATION DATE AS AN OPERATIVE API STANDARD OR, WHERE AN EXTENSION HAS BEEN GRANTED, UPON REPUBLICATION. STATUS OF THE PUBLICATION CAN BE ASCERTAINED FROM THE API AUTHORING DEPARTMENT [TELEPHONE (202) 682-8000]. A CATALOG OF API PUBLICATIONS AND MATERIALS IS PUBLISHED ANNUALLY AND UPDATED QUARTERLY BY API, 1220 L STREET, N.W., WASHINGTON, D.C. 20005.

Copyright 0 1995 American Petroleum Institute

COPYRIGHT American Petroleum Institute Licensed by Information Handling Services

A P I STD+b17 95

0732290 0543431 135

FOREWORDThis standard is based on the accumulated knowledge and experience of manufacturers and users of centrifugal compressors.The objective of this standard is to provide a purchase specification to facilitate the manufacture and procurement of centrifugal compressors for use in petroleum, chemical, and gas industry services. The primary purpose of this standard is to establish minimum mechanical requirements. This limitation in scope is one of charter as opposed to interest and concern. Energy conservation is of concern and has become increasingly important in ail aspects of equipment design, application, and operation. Thus, innovative energy-conserving approaches should be aggressively pursued by the manufacturer and the user during these steps. Alternative approaches that may result in improved energy utilization should be thoroughly investigated and brought forth. This is especially true of new equipment proposals, since the evaluation of purchase options will be based increasingly on total life costs as opposed to acquisition cost alone. Equipment manufacturers, in particular, are encouraged to suggest alternatives to those specified when such approaches achieve improved energy effectiveness and reduced total life costs without sacrifice of safety or reliability. This standard requires the purchaser to specify certain details and features. Although it is recognized that the purchaser may desire to modify, delete, or amplify sections of this standard, it is strongly recommended that suc