heat exchanger piping

TRAINING MANUAL- PIPING

PIPING STUDYHEAT EXCHANGER PIPING

Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

Page : 1

CONTENTS

Page

0.0 Cover Sheet 1

List of drawings 2 - 3

1.0 Introduction 4

2.0 Location 4 - 5

3.0 Access for Operation & Maintenance 5

4.0 Key Words 6

5.0 Steps to do Heat Exchanger Piping 6 - 7

6.0 Heat Exchanger Piping 7 - 8

Applicable Revision:Prepared:

Date:

Checked:

Date:

Approved:

Date:First Edition: R0Prepared: AKB

Date:

Checked: TNG

Date:

Approved: RUD

Date:File Name: Server: PUNE: KUMUS 207 VKO: KUMUS 209



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

Page : 2

SR.NO. DWG.NO. DESCRIPTION

1 HEP1 EXCHANGER APPLICATION SHOWN ON A PROCESS FLOWDIAGRAM

2 HEP2 SHELL AND TUBE HEAT EXCHANGER WITH REMOVABLE TUBEBUNDLE

3 HEP3 SAMPLE OF TUBE AND SHELL EXCHANGER PASSES

4 HEP4 TYPES OF EXCHANGER : SHELL & TUBE, PLATE TYPE & AIRCOOLER EXCHANGER

5 HEP5 AIR COOLER EXCHANGER CONSTRUCTION DETAILS

6 HEP6 TYPICAL PLOT PLAN OF SEVERAL EXCHANGER APPLICATION

7 HEP7 ARRANGEMENT OF EXCHANGERS AND OPERATING SPACEBETWEEN PIPING

8 HEP8 SAMPLE EXCHANGER ORIENTATION

9 HEP9 SAMPLE SINGLE & PAIRED EXCHANGER/PARALLEL & SERIESINSTALLATIONS

10 HEP10 STACKED EXCHANGER INSTALLATION

11 HEP11 SAMPLE STRUCTURE MOUNTED EXCHANGER INSTALLATION

12 HEP12 TOWER SUPPORTED VERTICAL INSTALLATION & TUBE BUNDLEMAINTENANCE

13 HEP13 STRUCTURE SUPPORTED VERTICAL INSTALLATION

14 HEP14 CONTROL AND OPERATOR ACCESS FOR A PLATE TYPE HEATEXCHANGER

15 HEP15 TYPICAL COLUMN SUPPORTED AIR COOLER ARRANGEMENT

16 HEP16 TYPICAL FIXED PLATFORM AIR COOLER ARRANGEMENT

17 HEP17 ALLOWABLE NOZZLE CONFIGURATIONS

18 HEP18 EFFECT OF ELBOW NOZZLES ON STACKED EXCHANGERS

19 HEP19 ALTERNATE AIR COOLER NOZZLE CONFIGURATIONS

20 HEP20 PIPING TO NOZZLES OF HEAT EXCHANGERS

21 HEP21 ALTERNATE ARRANGEMENTS FOR LOCATING EXCHANGERNOZZLES

22 HEP22 PIPING ARRANGEMENT FOR HORIZONTAL SHELL AND TUBEEXCHANGERS

23 HEP23 SUPPORTS FOR PIPING ARRANGEMENT

24 HEP24 PIPING ARRANGEMENT FOR UNDERGROUND COOLING WATERSYSTEM

25 HEP25 PIPING ARRANGEMENT FOR STEAM AND CONDENSATE SYSTEM



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

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26 HEP26 PIPING ARRANGEMENT FOR HORIZONTAL AND VERTICAL REBOILER

SR.NO. DWG.NO. DESCRIPTION

27 HEP27 PIPING ARRANGEMENT FOR HIGH TEMPERATURE & PRESSUREFEED EXCHANGERS

28 HEP28 PIPING ARRANGEMENT FOR FEED EXCHANGERS

29 HEP29 PIPING ARRANGEMENT FOR SPIRAL EXCHANGERS

30 HEP30 PIPING ARRANGEMENT FOR PLATE EXCHANGERS

31 HEP31 OVERHEAD PIPING ARRANGEMENT FOR A CONDENSING AIRCOOLER



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

Page : 4

1.0 INTRODUCTIONHeat Exchangers are widely used equipments in the chemical, petrochemical and refinery type ofplant. The control of heat within a plant operation is done by direct heat application in a furnace, orby heat exchange in a shell and tube exchanger / plate heat exchanger. Types of heat exchangermay be Shell and Tube, Aircooled (Fin-Fan), Plate type or Coil type(spiral).

1.1 Various process duties of heat exchanger have an effect on the layout aspects viz.a. Exchange of sensible heat between two process fluids.b. Cooling with air or water.c. Chilling with refrigerated liquid.d. Heating with steam or hot water.e. Condense by water or a cold process stream.f. Vapourising by steam (e.g. column reboiler) or any heat transfer liquid.

1.2 - Fixed tube exchangers are used when the temperature differences between shell side and tubeside fluid are small.

- Floating head or U-type exchangers are used where there is a significant temperaturedifference.

- Kettle -type reboilers are used for evaporation in case of limiting pressure drop, otherwisevertical reboilers are used for evaporation.

- Plate heat exchangers are generally used in low-pressure, low temperature applications. Theplate exchanger occupies less space than shell and tube exchanger for equivalent heatexchanger surface.

- Aircoolers are used for overhead condensers of column and consist of fin-tube bundles with aheader box to each end, having inlet on top of header-box at one end and outlet on bottom ofheader box at the other end.

1.3 Various types of heat exchangers with application are illustrated in the schematic flow diagramHEP1. The various parameters applied to heat exchangers are illustrated in Fig., HEP2, HEP3,HEP4 & HEP5.

1.4 For single pass arrangement of air-cooler exchangers, inlet nozzles are mounted on the top of theheader box and the outlet nozzles are located at the opposite end and mounted on the bottom of theheader box. For double pass arrangement, the inlet and outlet nozzles are located at the same end.

2.0 LOCATION

Exchangers should be located close to the major equipment with which it is associated in PFD /P&ID. Reboilers are placed next to their respective towers and condensers are placed over refluxdrums. Exchangers between two distant pieces of process equipment should be placed at optimalpoints in relationship to piperacks.

Most exchangers are to be located at grade level with elevations to have a clearance of 1m aboveFinished Ground Level (FGL). Elevated exchangers may be necessary to fulfill the NPSHrequirement of a downstream centrifugal pump.

In case of large numbers of heat exchangers, they are grouped in one or more category to savepipe work, structural work, provision of lifting and maintenance facilities, platform requirement etc.Paired or grouped exchnagers shall be spaced to allow minimum 450mm preferrably 600mmbetween the outside of adjacent channel or bonnet flanges to facilitate access to flange bolts during



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

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maintenance. Adequate space shall be provided on either side of paired exchanger and at bothends of grouped exchanger for control and operator access as illustrated in Fig.HEP9.Groups of exchangers should be generally located by the alignment of channel nozzles in a verticalplane so as to present an aesthetic appearance.

The support saddle with oblong holes for provision of thermal expansion are normally located on thesaddle farthest from the channel end but the final location depends on the plant layout and the stressanalysis of the connected piping.

Exchanger piping should be as direct and simple as possible by considering alternatives such asarranging exchangers side by side / stacking them for reversing flows.

Exchangers are sometimes mounted on structures, process columns and other equipment.Special arrangements for maintenance and tube cleaning should be provided in such cases.

3.0 ACCESS FOR OPERATION & MAINTENANCE

Internals of heat exchanger require periodic cleaning and repair. It is important that exchangersand the surrounding piping are arranged to facilitate access to the internal parts.

3.1 Horizontal clearance of at least 900mm should be left between exchangers flange to flange orexchanger flanges to piping. Where space is limited, clearance may be reduced between alternateexchangers but in no case clearance over insulation between channel flanges shall be less than600mm.

3.2 The channel ends of exchangers should face the local access road for tube bundle removal and theshell cover should face the piperack. Pulled out bundles should not extend over main access road.

A typical exchanger arrangement with clearance for access, operation and maintenance is shownin Fig.HEP7.

Access for tube bundle removal is usually 500mm more than the bundle length.

3.3 Mobile equipment should be used for handling tube bundles and covers at grade level. Expensivebuilt-in facilities e.g. lifting beams, monorails to be kept minimum.

3.4 The use of tube-bundle extractor eliminates the need for permanent tube bundle removal structures.These mechanisms weigh around seven tons and are capable of pull forces about 500,000lbs. Thetube-bundle is held in position by crane and balanced by the extractor's leveling cradle and pulledout of its shell with pull rod attachments that use hydraulic force.

3.5 For air-cooled exchangers, platform arrangements must suit maintenance access requirements.Considerations must be given to fin-tube bundle removal, tube rodding out at header boxes, motorand fan access.

3.6 Provision of easily removable spool pieces, flanged elbows, break flanges or short pipe runs will behelpful for maintenance of exchangers.

3.7 Illustrations for exchanger location in unit plot plan alongwith the provisions of operating andmaintenance space, accessibility are shown thru' Fig.HEP6, HEP7, HEP8, HEP9, HEP10, HEP11,HEP12, HEP13, HEP14, HEP15 & HEP16 as typical cases.



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

Page : 6

4.0 KEY WORDS

Shell and TubeFixed headFloating headChannel EndBonnet EndChannel FlangeTube bundle removal

Air Cooler (Fin-Fan)Header BoxNozzle loadsPlatformSupport Structure

Stacked heat exchangerElbow nozzle.MonorailMaintenance accessway

Plate type heat exchangerInlet portBack flashingPlates and gasketsRemoval of individual plate

5.0 "STEPS TO DO HEAT EXCHANGER PIPING"

Step 1 : Collect the mech. spec. of the heat exchanger.

Step 2 : Study the P&ID around the heat exchanger and identify the relationship with the connectedequipment viz. column or reactor.

Step 3 : Note the special process (functional) requirement along with the specific arrangement detailswith respect to level or height difference from other related equipment like pumps.

Step 4 : Study the nozzle schedule, its position on the equipment and verify with P&ID.

Step 5 : Make a sketch for the relative location and level. Find out the tube cleaning space in case shell& tube Heat Exchanger as well as the maintenance space of tube bundle length.

Step 6 : Locate the control valve stations both for shell side and tube side fluids.

Step 7 : Decide the flanged joints location for replacement of Heat Exchanger / maintenance facility.

Step 8 : Check, in general, that cooled streams flow downwards and heated streams flow upwards. Thisarrangement is mandatory when there is a change of phase, desirable when the streams areliquid but not important when the streams are gas or vapour or there is no super heating,super cooling.



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

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Step 9 : Check, piping should not foul with exchanger removal either in the horizontal direction forbundle-pulling nor in the vertical for whole exchanger removal.

Step 10: Check, locally mounted PI, TI on equipment or process lines, sight glasses and level indicatorsare visible from access aisles and valves are accessible from the aisles.

Step 11: Mark the supports / support arrangement on the piping study.

Step 12: Ensure accessibility / operation facility for all valves as well as the clearance kept are not lessthan the recommended minimum requirement.

6.0 HEAT EXCHANGER PIPING

6.1 SHELL & TUBE

After all the required information has been collected for the piping design of a heat exchanger, thefirst step is to outline clearance and working space in front and around both ends of the exchanger.These working spaces should be kept clear of any piping and accessories to facilitate channel,shell-cover and tube-bundle removal as well as maintenance and cleaning.

The free space at the side of horizontal shell can be used for placement of control stations.

The piping is elevated from grade to have a clearance of 300mm above the grade level. The pipingconnected to channel head nozzles should be furnished with break flanges to facilitate the removalof the channel head.

Steam lines connecting to a header in the yard can be arranged on either side of the exchangercenterline without increasing the pipe length.

Cooling-water lines, if under ground, should run right under the lined-up channel nozzles of allcoolers.

Access to valve hand wheels and instruments will influence the piping arrangement around heatexchangers. Valve handwheels should be accessible from grade and from a convenient accessway.These accessways should be used for arranging manifolds, control valves and instruments.

Fig. HEP 20, HEP21, HEP22, HEP23, HEP24, HEP25, HEP26, HEP27 & HEP28 illustrates sometypical piping arrangement around shell & tube exchangers.

6.2 PLATE & SPIRAL EXCHANGERS

Piping at spiral and plate exchangers is also arranged to allow opening of covers and removal ofplates.

Controls at the spiral exchanger are located on the ends of the unit, clear of the cover plate swingarea, piping attachment to cover plate nozzles of spiral exchanger will have break flanges.

Controls for plate exchanger are located at the front and one side of the exchanger. The piping iselevated to have clearance from grade as well as convenience for operation of valves.

Fig.HEP29 and HEP30 illustrates the typical piping arrangements around spiral & plate exchangers.



Uhde India Limited

DOC No. : 29040-PI-UPS-1004

Rev. : R0

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6.3 AIR COOLERS

Piping for air coolers are not routed over tube banks or fans and should be kept clear of thedesignated space for motor maintenance.

Fig.HEP31 illustrates the typical piping arrangements around air coolers.

EXCHANGER APPLICATION SHOWN ON A PROCESS FLOW DIAGRAM

STEAM

SHELL & TUBE

EXCHANGER PROCESS

REBOILER

REFRIGERANT

WATER

AIR

DOC NO.

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PageUhde India Limited

TRAINING MANUAL - PIPING

PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP1

SHELL &

(AIR COOLER)CONDENSER

REFRIGERATION

KETTLE

TUBE

SHELL &TUBE

PACKAGE

CHILLER

STEAM

HEATER

SHELL & TUBE

COOLER

HEAD NOZZLE

CHANNEL

CHANNEL COVER

1ST FLUIDENTERS(COLD) (WARM)

2ND FLUIDLEAVES

HEAD NOZZLE

VENT

DRAIN

LEAVES1ST FLUID

DRAIN SADDLE BAFFLE(TYP)SADDLE

DRAIN

FLOATING

PACKED FLOATING

REARHEAD

HEAD RING

TUBE-SHEET

(HOT)ENTERS

2ND FLUIDSHELLREMOVABLETUBE BUNDLE

RELIEF VALVECONNECTION NOZZLE

SHELLNOZZLE

SHELL

SHELL AND TUBE HEAT EXCHANGER WITH REMOVABLE TUBE BUNDLE

DOC NO.

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PIPING STUDY

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HORIZONTAL BAFFLE

TUBE SIDE SHELL SIDE

VERTICAL BAFFLES

SAMPLE OF TUBE AND SHELL EXCHANGER PASSES

KEY ITEMS FOR A TYPICAL SHELL AND TUBE EXCHANGER

HORIZONTAL BAFFLE

TUBE SIDE SHELL SIDE

VERTICAL BAFFLES

SHELL SUPPORTSADDLE

FIXED TUBESHEET NOZZLE

SHELL FLOATINGHEAD COVER

SHELL COVERTUBE BUNDLETUBE NOZZLE

CHANNEL HEAD

HEAD COVER

DOC NO.

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INOUT

OUTIN

(TYP)

AIR COOLER EXCHANGER

SHELL AND TUBE EXCHANGER

PLATE EXCHANGER

DOC NO.

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: HEP4

MO

TOR

MO

TOR

OU

TLE

T N

OZZ

LE

TUBE BANKFAN HOUSING INLET NOZZLEHEADER BOX

SUPPORTSTEEL

MOTOR ACCESSPLATFORM

SUPPORTBEAM

HEADER BOX TUBE BANK INLET NOZZLE

SUPPORT CHANNEL

AIR COOLER EXCHANGER CONSTRUCTION DETAILS

DOC NO.

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PIPING STUDY

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TYPICAL PLOT PLAN OF SEVERAL EXCHANGER APPLICATION

PLATE EXCHANGER

HORIZONTAL REBOILER

AIR COOLEDCONDENSERS

TRIM CONDENSERS

VERTICAL REBOILER

PRODUCT COOLERSSPIRAL

KETTLE TYPE

DOUBLE PIPE EXCHANGER

HIGH PRESSUREEXCHANGERS

EXCHANGERS

C COLUMNL

LC COLUMN

C COLUMNL

C COLUMNL

C COLUMNL

DOC NO.

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EXCHANGER

CLEARANCE

PULLING TUBES ACCESSSPACE FOR

2" MIN.

2" MIN.

2'-6"

6' L FEET (0.8)(L)FEET 8FEET

L FEET

CLEARANCE

6'

2" MIN.

2'-6"

2" MIN.

8FEET(0.8)(L)FEET

SPACE FORPULLING TUBES ACCESS

2'-6"

ARRANGEMENT OF EXCHANGERS

2'2'

PAIRED UNITS AND 2'-6"OPERATING SPACE BETWEEN PIPING.

(1) SHOW OUTLINES OF EXCHANGER SUPPORTS OR FOUNDATIONS BEFORE ARRANGING PIPING.

(2) ADD THICKNESS OF INSULATION FOR EXCHANGER SHELLS AND CONNECTED PIPING TO CLEARANCE AS SHOWN.

(3) PROVIDE ADDITIONAL CLEARANCE TO THE 2'-6"(750) OPERATING SPACE IF VALVE HANDWHEELS AND VALVESTEMS, etc., PROTRUDE, DEPENDING ON PIPING ARRANGEMENT.

(1800) (2500)

(2500)(1800)

(750)

(750)

(750)

(600

)

WITH 2'-6" OPERATING SPACE BETWEEN PIPING(a)

ARRANGEMENT OF EXCHANGERS WITH 2'-0" MAINTENANCE SPACE BETWEEN(b)

DOC NO.

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IPE

RA

CK

PIP

ER

AC

K

SAMPLE EXCHANGER ORIENTATION

C P

IPE

RA

CK

CO

LUM

NS

L

BONNET REMOVAL AREA

DAVIT CHANNEL END

TUBE BUNDLE REMOVAL AREA

AU

XIL

IAR

Y R

OA

D O

R M

AIN

TE

NA

NC

E A

CC

ES

S W

AY

C TOWERL

- CHANNEL END TO FACE MAINTENANCE ACCESS WAY FOR TUBE BUNDLE REMOVAL.- PROVISION OF ADEQUATE SPACE FOR BONNET REMOVAL.

DOC NO.

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SAMPLE SINGLE AND PAIRED EXCHANGER

TOWER

ACCESSOPERATOR

CONTROLVALVE (TYP.)

18"/.450MINIMUM

DRUM

EXCHANGERSPAIREDSINGLE

EXCHANGER

VALVE (TYP.)CONTROL

VALVE (TYP.)CONTROL

PARALLEL EXCHANGER INSTALLATIONS

OPERATORACCESS

OPERATORACCESS

OPERATORACCESS

OPERATORACCESS

ACCESSOPERATOR

ACCESSOPERATOR

SERIES EXCHANGER INSTALLATIONS

DOC NO.

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STACKED EXCHANGER INSTALLATION

SPACE FRAME

SAME SERVICE DISSIMILAR SERVICE

ACCESS AREAOPERATOR

SAME SERVICE12

'-0"/

3600

(MA

XIM

UM

WIT

HO

UT

PLA

TFO

RM

)

DOC NO.

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ELBOW NOZZLE

SAMPLE STRUCTURE MOUNTED EXCHANGER INSTALLATION

AUXILIARY ROADOR MAINTENANCEACCESS WAY

4'-0"/1.200MIN.(TYP.)

TUBE END TUBE BUNDLEREMOVAL AREA

18"/.450 MIN.

DOC NO.

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TOWER SUPPORTED VERTICAL INSTALLATION

TUBE BUNDLEREMOVAL AREA

TOWER

LUG & SPRING

2'/600 TO 5'/1500

PLATFORMREBOILER

HITCH POINTS FORCOVER REMOVAL

3'-0

"/90

0 M

IN.

12'-0

"/36

00M

AX

IMU

MW

ITH

OU

TP

LAT

FO

RM

ALTERNATIVECHANNEL DESIGN

LUG & SPRING

1"/.025 GAP

PLATFORMSUPPORT STEEL

GUIDE

ADD 1"/.025SHIM

UN-BOLT

REMOVECHANNELSECTION

EXTRACTTUBE-BUNDLE

TUBE BUNDLE MAINTENANCE

DOC NO.

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COVER REMOVAL AREA

VESSEL NOZZLE

1

2

3 4

STRUCTURE SUPPORTED VERTICAL INSTALLATION

TUBE BUNDLEREMOVAL AREA

6'-0

"/18

00(M

AX

IMU

M)

PLATFORM

LUGS

4'-0"/1200MINIMUM

(TYP.)

MINIMUM18"/450

WITHOUT PLATFORM3'-0"/900 MINIMUM

12'-0"/3600 MAXIMUM

DOC NO.

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OPERATOR ACCESS

CONTROL ASSY.SPACE

PLATE REMOVAL AREA

C PIPE RACK COLUMN

CONTROL AND OPERATOR ACCESS FOR A PLATE TYPE HEAT EXCHANGER

(TYP.)

L

DOC NO.

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OPERATOR ACCESS

TYPICAL COLUMN-SUPPORTED AIR COOLER ARRANGEMENT

HEADER BOXPLATFORM

MO

TOR

(TY

P.)

(TY

P.)

MO

TOR

7'-0

"/21

00 M

IN.

OPERATOR ACCESS LADDER

PLATFORMMAINTENANCE

PIPE RACK

ADDITIONAL PLATFORMIF LADDER RUN ISLONGER

AIR COOLERINDUCED DRAFT

DOC NO.

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HEADER BOXPLATFORM (TYP.)

MAINTENANCELADDER TO

PLATFORM (TYP.)

GRADE (TYP.)LADDER TO

COLUMNSPIPE RACK

PLATFORMMAINTENANCE AIR COOLER

SUPPORT BEAM

MOTOR(TYP.)

TYPICAL FIXED PLATFORM AIR COOLER ARRANGEMENT

DOC NO.

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ALLOWABLE NOZZLE CONFIGURATIONS

SINGLE PASS SHELL

SINGLE PASS SHELL

SINGLE SPLIT FLOW SHELL

DOUBLE PASS SHELL

DOUBLE SPLIT FLOW SHELL

DOUBLE PASS SHELL

SINGLE PASS SHELLKETTLE TYPE REBOILER

DOC NO.

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EFFECT OF ELBOW NOZZLES ON STACKED EXCHANGERS

ELBOW NOZZLES

ALTERNATIVE `A' ALTERNATIVE `B'

DOC NO.

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RE

DU

CE

D S

PA

CE

RE

DU

CT

ION

IN S

PA

CE

GRAVITY FLOW

ALTERNATELOCATION

AIR COOLERS

SINGLE PASS OUTLETNOZZLE LOCATION

INLET NOZZLELOCATION

OUTLETDOUBLE PASSC

TO

WE

RL

REFLUX DRUM

LOCATION

ALTERNATE AIR COOLER NOZZLE CONFIGURATIONS

DOC NO.

Rev.



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ALLOW SPACEFOR PULLINGTUBES

C EXCHANGER L

REMOVABLE SPOOL

12"MIN. FORWRENCH ACCESS

TO ALLOW LIFTING OF REAR HEADFOR MAINTENANCE, PIPE MAY BEOFF SET AS SHOWN, OR A SHORTSPOOL CAN BE PROVIDED.

OBLIQUE OFFSETS IN PIPING SIMILIARTO THOSE SHOWN. ALLOW EXCHANGERSTO BE PLACED CLOSER.

AND LOCATION TO OBTAIN THE BESTDIFFERENT NOZZLE TYPES, ORIENTATIONSCONSIDER REQUEST TO VENDOR

PLANT ARRANGEMENT.

90°ELBOWNOZZLE

NOZZLE90°ELBOW

LINES SUPPORTED UNDER ANEXCHANGER ARE SOMETIMESINSUFFICIENTLY FLEXIBLE.THE FLANGED JOINT AT THEHEAD NOZZLE TO BE PARTEDAFTER REMOVAL OF BOLTS. IFTHIS IS LIKELY A SHORTREMOVABLE SPOOL TO THEHEAD NOZZLE SHOULD BEPROVIDED.

PIPING TO NOZZLES OF HEAT EXCHANGERS

TUBE BUNDLE LENGTH+450MM

DOC NO.

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ALTERNATE ARRANGEMENTS FOR LOCATING EXCHANGER NOZZLES

ALTERNATIVE `A' ALTERNATIVE `B'

DOC NO.

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PIPING ARRANGEMENT FOR HORIZONTAL SHELL AND TUBE EXCHANGERS

C TOWERL

C P

IPE

RA

CK

LC

OLU

MN

CONTROL STATIONS CHECK CLEARANCEAT SUPPORT

MAINTENANCE ACCESS

MAINTENANCE ACCESS

OPERATOR ACCESS

MAINTENANCE ACCESS

BREAK FLANGES

MAINTENANCE ACCESS

OPERATOR ACCESSALTERNATELOCATION FORCONTROL STATIONS

PIPE RACK

RUN PIPING ATCOMMON ELEVATIONTO SUIT PIPE RACKELEVATIONS

MAINTAINCLEARANCEAT DAVIT

DOC NO.

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ACCESS TO VALVES &INSTRUMENTS

TUBE BUNDLE REMOVAL AREA=TUBE LENGTH + 450

600 TO 900

450 450 ACCESS TO FLANGE BOLTS

(ALL AROUND)

CONTROL STATIONS

SUPPORTS FOR PIPING ARRANGEMENT

DUMMY LEG/ TRUNNION

INTERMEDIATE SUPPORTREQUIRED FOR PIPINGTHAT IS OVER SPANNEDBETWEEN PIPE RACK ANDEXCHANGERS

TO CONCRETE SUPPORTATTACH STEEL FRAME

DOC NO.

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: HEP23

PIPING ARRANGEMENT FOR UNDERGROUND COOLING WATER SYSTEM

THI

COOLING WATER SUPPLY

COOLING WATER RETURN

USE SPOOL PIECE FORBUTTERFLY VALVES

CHECK CLEARANCEWITH FOUNDATIONS

ANTIFREEZE BYPASS

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP24

PIPING ARRANGEMENT FOR STEAM AND CONDENSATE SYSTEM

CONDENSATECONTROL VALVE

CONDENSATEPOT VALVE

STEAM CONTROL

ELEVATION OFCONDENSATE POTSET BY PROCESSCONDITIONS

TRUNNIONSUPPORT

LEVELGAUGE

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP25

SYMMETRICAL PIPING

LUGS

INDEPENDENTSTRUCTURESUPPORTING REBOILER

PIPING ARRANGEMENT FOR VERTICAL REBOILER

PIPING ARRANGEMENT FOR HORIZONTAL REBOILER

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP26

PIPING ARRANGEMENT FOR HIGH TEMPERATURE.HIGH PRESSURE FEED EXCHANGERS

ALTERNATIVE `A' ALTERNATIVE `B'COST EFFECTIVE

PROVIDE LOOPIN PIPING FORFLEXIBILITY

SUPPORT AT CENTEREXCHANGER CHANNEL

PROVIDE SPRING

END ONLY

HIGH PRESSUREHIGH TEMPERATURE,

ALLOY PIPING

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP27

PIPING ARRANGEMENT FOR FEED EXCHANGERS

COOLING WATER

LOCATE PIPINGBENEATH PLATFORMFOR EASE OFSUPPORT

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP28

CONTROL VALVEOPERATOR ACCESS

PIPE RACK COLUMN

PIPING ARRANGEMENT FOR SPIRAL EXCHANGERS

CONTROL VALVE

REMOVABLESPOOL (TYP.)

SWING AREACOVER PLATE

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP29

OPERATOR ACCESS

CONTROLVALVE

PLATE REMOVAL AREA

C PIPE RACK COLUMN

PIPING ARRANGEMENT FOR PLATE TYPE EXCHANGERS

CONTROL VALVES

ELEVATION

PLAN

(TYP.)

L

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP30

C TOWERL

FOR FLEXIBILITY, THE AIR COOLERCAN BE POSITIONED WITH THEINLET NOZZLES ON THE FARCENTERLINES OF THE PIPE RACKCOLUMNS. THE AIR COOLER SECTIONSSHOULD BE SEGREGATED AND THESTEEL EXTENDED TO SUPPORT THEOVERHEAD PIPING.

COST EFFECTIVE ALTERNATEROUTING, IF PIPING IS FLEXIBLEAND CAN SPAN DISTANCE WITHOUTINTERMEDIATE SUPPORT.

SUPPORT STEEL TOSUPPORT OVERHEAD LINE.

EXTENDED AIR COOLER

AIR COOLER

AIR COOLER

OVERHEAD PIPING ARRANGEMENTS FOR A CONDENSING AIR COOLER

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

HEAT EXCHANGER

: 29040-PI-UPS-1004

: R0

: 1 OF 1

: HEP31

C TOWERL

heat exchanger piping

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