Page 409 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Ejectors and Mechanical Vacuum Systems 377

SPE;.C, D\"i'G, NO.
A.
Job No, --------------
Page of Pag<-s
B/M No. Unit Price
STEAM EJECTOR SPECIFICATIONS No. Uni ts I
Item No.
PERFORMANCE
-
Make -- Type
Servi ce Condenser: D Borometri c OSurface
No. of Stages No, of Ejectors per Stage --
Suet. Pr e s s MM HgAbs. Suet. Temp OF Max. Di sch. Press MM HgAbs.
Ste cm: Min. Pre!.s PSIA. Temp. __ oF Ouality %
Water! Sou re" Mox. Press _____ PSIA. Mox. Temp. OF
Vol. of Evccuated System Cu. Ft.
Expected Air Leakage L bs/H,.
Max, Evacuating Time Min.
Ejector Load -- Lbs/Hr. -- -- Mol. Wt. - _Cp, BTU/Lb-CF - __ Latent Ht., BTU/Lb. -
Condensobles
Nc n- Condensobles
---
DESIGN I
-·
1 st. Stage 2nd. Stage 3rd. Stage 4th. Stage 5th Stage
P rope I ling Steam, L.bs/H,. - I
Sfecm: !nlet Size --
Press. Class & Facing �----
Water, GPM
- -·· -- i--------------. -- �-- --
Water .'\ T, ° F -
Water: Inlet Size
Press. Class & Facing
Water: Exit Size
� Pre.ss. Class & Facing
� hamber Pr e s s, MM HgABS. .
Suet. Chamber Temp.° F
Condensers: Pre .. Inter .. After I
Barometric: No.Contact Stages I
Sur lc ce: Outside Tube Area Sq. F,. I
MATERIALS OF CONSTRUCTION
Ejector: Steam Chest Steam Nozzles
Di Huser: Inlet Dischorge Su ct. Chamber
1st. Stage Suet. Chamber Inlet (Siz:e x Pr. Cl. x Facing} x x
Barometric Condens.er: Shell Baflleo • Nozzles
I Surface Condenser: Shell x x Heed Material
Tubes (0.0. x !lWG x L)
Tube Sheet Baffles
Steam Strainer Shut Off Valves
�
c
n
3 " �
REMARKS .
�
n
Toil Pipes Furnished by
Interconnecting Piping by .
0
�
0
�
r
�
� I Chk'd. I App. IRev. _ ]S __ t:__ z c
Date I "' "
Figure 6-29. Steam ejector specifications.