Hydrostatic Test Procedure Site RevD

1 Owner 0 0 2 s n e m Consultant e i S ) C ( t h g i r y p o C

Torrent Power Generation Limited

s y i b s d t n t e e t a . n e r d o e c v c r s s t e t i h s g e r i r r o t g e r n i n a e , m d u n u l g c i c n s o i d , e s d . t r s t y i h o i h r g l t o r e f h i o t l l d o e u A . m s a s y u n t i e e i r t g l o t i r a t u n w m a o s a f i d o s s s e r n i r o m p f o i s x e t n e l a r a t b t r u a i t i s , o l g n h e t e r o i i r w b t l o c d l t u e i w n d t t o r r i s r a g p m r e t e r e d n p n e e t e t f h o f a T n O p

D C B A

TCECONSULTING TINGENGINEERSLIM LIMITED MUMBAI

2007/03/22

S,K.AN

2007/02/22

S,K.AN

2007/02/15

S,K.AN

2007/01/20

S.K. AN

Index Datum Rev. Data Sub-Contractor

bearb. Coord.

Revised to reflect to site preparation. Revised as Siemens Comment. Revised as Siemens Comment. First Issue

gepruft Checked

An Anderun rungshinw inweis / Details tails of Revisio ision n

Inkor Engineering Pvt. Ltd. This document is the property of INKOR, and is to be used only for the purpose of the agreement with INKOR pursuant to which it is furnished

Sub-Contractor document No.

IKR-PROC-001 Ursprung/ Original

Urspaung-Nr./Original –No.

Urspr-PKZ-Nr. Orig.-PC

Projekt/project

PKZ/PC

1100 MW SUGEN CCPP Datum Data gezeich. Drawn bearb, Coord. Gepruft Checked

Ab Abtlg tlg Dept.

Name

x

MaBstaB Scale Benennung/Title

IND696 UA/DCC DH01 Type Infalrskennzeichen Contents Code

A4

HYDROSTATIC TEST PROCEDURE FOR HRSG (SITE)

Zahl-Nr.

E932

Reg.No. Dienstst./Det

E932

UNID

223104 Version

Index/Rev.

458077234 Ang Ang-VR -VR./O ./Offer ffer-V -Var.

IND696-DH01-HA-223104 Erstellt mit / designed with: with: Intergraph

HA

D Var./O r./Op pt.

Blatt latt-N -Nrr./Page-No -No.

23 Ersatz fur Supersedes

1100MW SUGEN CCPP HRSG TABLE OF CONTENT 1.

INTRODUCTION 1.1 Purpose 1.2

Applicable Code and Reference Data for Hydrostatic Hydrostati c Test

1.3 Responsibility 2.

CONDITIONS CONDITIO NS FOR HYDROSTA HYDROSTATIC TIC TEST 2.1 Preliminary

3.

2.2

Hydrostatic Test Pressure and Water Volume.

2.3

Treated Water Requirement

PRE-TEST PREPARA PREPARATION TION 3.1

Safety Valves

3.2

Test Gauges

3.3

Temporary Facility

3.4 Communication 3.5 4.

Advance Material Readiness

HYDROSTATIC HYDROSTA TIC TEST GENERAL REQUIREME REQUIREMENTS NTS 4.1

Boiler Metal Temperature

4.2

Sectional Testing of the HRSG System

4.3

Double Valve Arrangement

4.4 Communication 5.

PROCEDURE 5.1

Inspection Inspecti on before Hydrostatic Test

5.2

Hydrostatic Test

6.

INSPECTION AND TEST

7.

Post Hydrostatic Test Procedure Procedures s

8.

APPENDICES AND ATTACHMENT 8.1

The Pressure curve of Hydrostatic Test Test for HRSG (Typical)

8.2

Pressure Test Circuit.

Hydrostatic Test Procedure for HRSG (Site) Rev.0

Doc.No : IKR-PROC-001 Page 2 of 23

1100MW SUGEN CCPP HRSG 1.

INTRODUCTION After installation of all pressure parts, Section I of the ASME Boiler and Pressure Vessel Code requires that a boiler shall be subjected to a Hydrostatic Pressure Test. This will be conducted at a test pressure of 1.5 times the maximum allowable working pressure as stamped on the boiler identification plate. This procedure is applicable to the hydrostatic test for the pressure parts of HP, IP, LP, CPH section for 1100MW SUGEN CCGT HRSG. This description only describes the general procedure for the hydrostatic pressure test of the HRSG. The detailed description will be contained in an additional detail engineering document. 1.1

Purpose

The primary purpose of this procedure is to provide a good quality of performance of HRSG before chemical cleaning and commissioning operation. And also to find a fault in site welding parts and to repair it. 1.2

Applicable Code and Reference Data for Hydrostatic Test

a)

ASME Boiler and Pressure Vessel Code Sect. I

b)

ANSI B31.1 (for external piping)

c)

IBR1950

1.3

Responsibility

a)

Erector is responsible for confirming and controlling the hydrostatic test job is being carried out according to the prescribed procedure.

b)

The manager in charge of hydrostatic test for HRSG must follow the procedure as requested, review and manage in accordance with the prescribed procedure.

c)

Temporary control office should be placed around the pressurization pump. The communication system for pressurization and depressurization shall be carried out by means of walkie-talkie.



1100MW SUGEN CCPP HRSG 2.

CONDITIONS FOR HYDROSTATIC TEST 2.1

Preliminary

Before starting to fill the boiler make sure all drums and headers are cleared of foreign material. Close all drains. Open all vents normally used when filling the HRSG (such as superheater link vents, economizer link vents, drum vents). 2.2

Hydrostatic Test Pressure and Water Volume

System

Design Pressure (barg)

Hydrostatic Test Pressure (barg)

Water Volume (M3)

HP (F.W)

257

385.5

3

HP (SH,Eva,Eco)

145

218

161

IP (F.W,Eco)

110

165

3

IP (SH,Eva)

38

57

43

Mauve (IND696-XG02-HAD50-220051)

RH (RH,HP Bypass Outlet)

38

57

50

Mauve (IND696-XG02-HAD50-220052 / HAD10-220011)

LP (F.W)

50

75

2

Light Blue (IND696-XG02-HAD80-220081)

LP & LBG

11

16.5

47

Orange (IND696-XG02-HAD80-220081 / LAA20-412001 / LBG10-421111)

Deae. To Cond. Sys

50

75

3

Deaerator

8

12

25

Deep Purple (IND696-XG02-LAA20 / 412001)

CPH

50

75

34

Light Green (IND696-XG02-LCA30-413032)

HP Bypass Cooling water

58

87

Nil

Gray (IND696-XG02-HAD10-220011)

Total

2.3

Remarks (Test Circuits Color / P&ID No.) Dark Blue (IND696-XG02-HAD10-220011) Purple (IND696-XG02-HAD10-220011) Blue (IND696-XG02-HAD50-220051 / 220052)

Brown (IND696-XG02-LAA20-412001)

371

Treated Water Requirement 1) Superheater and Reheater -

Type

:

Demineralized water

-

Temperature

:

21 ºC to 49 ºC

-

Contents

:

Ammonia 10ppm solution Hydrazine 200ppm solution



1100MW SUGEN CCPP HRSG -

pH

:

10

NOTE : Demineralized or Condensate quality water is defined as containing no more than 1 ppm (1

/

) of identifiable solids and essentially a zero concentration (or

lowest detective level ) of organic material. CAUTION : The use of fill water, treated with solid chemicals, should be avoided. Deposits of solid materials in superheaters can be detrimental from heat transfer and corrosion standpoints. Superheaters containing stainless steel tubing are particularly vulnerable to stress corrosion cracking in the presence of such chemicals as caustic and chlorides. 2) Remainder of HRSG unit: Fill with treated condensate or treated demineralized water, or, if not available, with a clean source of filtered water with 10 ppm (10 cm3/m3) of ammonia and 200 ppm (200 cm3/m3) of hydrazine The water conditions as stated above can be adjusted by pouring chemicals, Ammonia in the temporary storage tank i.e. condensate storage tank. The water can be treated with only ammonia. This will however reduce the period of time that this water can be left in the system.

3.

PRETEST PREPARATION 3.1

Safety Valves

All safety valves will be checked for having the Hydro Plug inserted if applicable. The Compression screw on the Safety Valve must be turned clockwise until the locknut makes up on the Yoke. 3.2

Test Gauges

-

Only recently calibrated test gauges are to be used.

-

Dial pressure gauges used in the testing shall preferably have dials graduated over their entire range of about double the intended maximum test pressure, but in no case shall the



1100MW SUGEN CCPP HRSG range be less than 1½ times that pressure.

-

There should be at least two (2) pressure gauges installed, one of which is at the highest point of the system, the other gauge is t o be installed at the Hydro-Pump.

3.3

Temporary facility

Description

Capacity

D.M Pump 2

Q’ty

Remarks

1

Water filling for Temp. Tank

1

Water filling for System

1

Pressurizing

1

Pressurizing

Filling Water Pump

20 kg/cm g

Pressurizing pump

450 kg/cm g

Temporary Water Tank

10 m

Air Compressor

10 kg/cm g

1

Fire Hose

2 ½” ~ 20m

5

Water filling for System

High Pressure Hose

½ “~ ¾”

Multitude

Pressurizing

2

3

2

Temporary Piping

3.4

Water filling & Pressurizing

Communication

All communication between the boiler control station and the Hydro-Pump station will be with Radios. Back-up radios are to be readily available at each control station.

-

Radio : More than 4 walkie-talkie

-

Location : Control center (filling water pump or pressurization pump area) Top (pressure gauge, thermometer and vent area) Inspector

-

Inspector and recorder must be placed in a convenient area to communicate for the pressure gauge, inspection of thermometer and control center.

3.5

Advance Material Readiness

Scaffolds, lights and repair tools are to be ready at time of Hydro-Test.

4.

HYDROSTATIC TEST GENERAL REQUIREMENT



1100MW SUGEN CCPP HRSG

4.1

Boiler Metal Temperatures

The metal temperature of all components to be Hydro-Tested must be at least 21 ºC (70 ºF) before applying the Hydro Test pressure but shall not exceed 48.8 ºC(120ºF) 4.2

Sectional Testing of the HRSG Systems

When Hydrostatic Testing is to be done on a section of the system which is not directly linked to a lower than test pressure designed system, but segregated by the test boundary isolation, all vent valves in the lower pressure designed system must be open to avoid over pressurization of the same. 4.3

Double Valve Arrangements

-

All components tested will be as indicated on the flow chart or P&ID for the specific test.

-

Always open the root valve fully and throttle with the down stream valve when depressurizing or draining a system.

4.4

Communication

All communication / Co-ordination concerning the Hydro-Test has to be addressed through designated personnel.

5.

PROCEDURE 5.1

Inspection before Hydrostatic Test

5.1.1 Check for any foreign materials of tools, clothes and other things inside

the drum, heater,

manifolds etc. and then close the manholes and all holes of the pressure. 5.1.2 The pressure gauge to be used for Hydro-Test should exactly be calibrated. In addition to this, the filling piping and pressurization shall be checked. 5.1.3 It is very important to check whether the instruments and the temporary construction piping



1100MW SUGEN CCPP HRSG are free from foreign particulate matters. 5.1.4 The safety valves gagged. (when the worker install safety valve, he must check whether the test plug is inserted or not, and if inserted, a tag with „ No operating” must be attached) 5.1.5 Before filling , to close the block valves and open the vent valve of each system, Authorization of concerned in charge is required to be done in the valve operation list. 5.1.6 In case of deaerator, Spray valve & tray should be separated to avoid foreign material. But if spray valve is installed in deaerator, take a note water filling must not be done through spray valve. 5.2

Hydrostatic test

5.2.1 Water filling In case of non availability of condensate transfer pump, which are to fill the water, filling of water shall be done by temporary filling water pump shall be installed in each system as paragraph 5.2.1.2. 5.2.1.1 In advance, in the close condition of the specified valve, it has to be checked then the signature on the control list is requested under the open condition of top air vent valve. If the above condition is pleased it may be filled for water washing. 5.2.1.2 It is a fundamental rule to fill the inside of HRSG through specified valves for each system(HP, IP, LP, CPH and Deaerator). 5.2.1.3 If water is seen being filling from bottom valve, each air vent valve shall be closed on sequentially till top air vent valve at that time a full filling should be confirmed at top air vent valve. 5.2.2 Pressurization 5.2.2.1 HP F.W. Section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure(design pressure 257barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test



1100MW SUGEN CCPP HRSG pressure (385.5 barg) of HP F.W. section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6%( 23.1 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2~3 kg/cm^2/min. (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f) If the result during checking is under the normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve. 5.2.2.2 HP section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure(design pressure 145 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure (217.5 barg) of HP section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6%( 13.0 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2~3 kg/cm^2/min. (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f) If the result during checking is under the normal condition, the pressure shall be reduced by 3~5 kg/cm2^/min. by opening a drain valve. 5.2.2.3 IP F.W Section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure(design pressure 110 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure (165 barg) of IP F.W. section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6%( 9.9 bar )



1100MW SUGEN CCPP HRSG of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2~3 kg/cm^2/min. (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure f) If the result during checking is under the normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve. 5.2.2.4 IP Section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure(design pressure 38 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure (57 barg) of IP section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6%(3.4 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2~3 kg/cm^2/min. (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f) If the result during checking is under the normal condition, the pressure shall be reduced by 3~5 kg/cm2^/min. by opening a drain valve. 5.2.2.5 LP F.W. Section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure(design pressure 50 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure (75 barg) of LP F.W section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6%( 4.5 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2~3 kg/cm^2/min. (depressurization rate) till the



1100MW SUGEN CCPP HRSG design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f) If the result during checking is found in normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve. 5.2.2.6 LP section a) The pressure should be increased by 2~3 kg/cm^2/min. up to Max. allowable working pressure(design pressure 11 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure (16.5 barg) of LP section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6%( 1 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2 ~ 3 kg/cm^2/min (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f) If the result during checking is found in normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve. 5.2.2.7 CPH section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure (design pressure 50 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure(75 barg) of CPH section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6% ( 4.5 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2 ~ 3 kg/cm^2/min (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be



1100MW SUGEN CCPP HRSG carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f) If the result during checking is found in normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve. 5.2.2.8 Deaerator section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure (design pressure 8 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure(12 barg) of Deaerator section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6% ( 0.7 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2 ~ 3 kg/cm^2/min (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure. f)

If the result during checking is found in normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve.

5.2.2.9 HP Bypass Cooling Water Section a) The pressure should be increased by 3~5 kg/cm^2/min. up to Max. allowable working pressure (design pressure 58 barg). b) Observe test section for any obvious leaks. c) Then the pressure should be increased by 2~3 kg/cm^2/min till the hydro-test pressure(87 barg) of HP Bypass cooling water section and held for min. 30 minutes. The pressure must be under control at all times and shall never exceed by more than 6% (5.5 bar ) of the desired Hydrostatic Test Pressure. d) The pressure shall be reduced by 2 ~ 3 kg/cm^2/min (depressurization rate) till the design pressure by opening drain valve. e) A close visual inspection of all boiler pressure parts and connecting piping shall be carried out after the pressure was lowered from hydrostatic test pressure to design pressure.



1100MW SUGEN CCPP HRSG f)

If the result during checking is found in normal condition, the pressure shall be reduced by 3~5 kg/cm^2/min. by opening a drain valve.

6.

INSPECTION AND TEST 6.1 All welding points, valves and hangers which were welded on pipe must be inspected during the hydrostatic test. During the inspection if there is an abnormal condition the inspection should be stopped and a repair work should be done. 6.2

The test data should be recorded at an interval of 5 minutes but not less than 5 measuring data in each case during hold time and during subsequent inspection, and the basis of the pressure is the pressure gauge installed at the highest point of the system, and temperature should be recorded from the temporary temperature gauge installed near the pressure gauge.

6.3

The inspection must be witnessed as per the inspection points in hydro test inspection table. NOTE : Hydrostatic test pressure should not be applied to the boiler of the metal temperature of the pressure parts is below 70° F ( 21° C ). Since there is generally some time delay between the hydrostatic test and the initial boiling out and cleaning for the boiler the unit should remain full of water, air should not be allowed to enter.

7.

Post Hydrostatic Test Procedures 7.1

Hydrostatic test water will be left in the system for preservation. Pressure approximately 3 to 5 psig (21 to 34 kPa) to be maintained, checked and recorded on a regular basis.

7.2

Remove all hydrostatic test plugs and gags from the safety valves prior to starting up the unit. NOTE: Since there is generally some time delay between the hydrostatic test and the initial boiling out and acid cleaning of the HRSG, it should remain full of water; air should not be allowed to enter.




8.

ATTACHMENT 8.1

The pressure curve of hydrostatic test for HRSG A.

HP F.W Section pressure curve (Typical)

B.

HP Section pressure curve (Typical)

C. LP Section Pressure Curve(Typical) D. LP F.W Section Pressure Curve (Typical E.

CPH Section pressure curve (Typical)

F.

IP & RH Section Pressure Curve (Typical)

G. IP F.W Section Pressure Curve (Typical) H. Deaerator Section Pressure Curve (Typical) I. 8.2

HP Bypass Cooling Water Section Pressure Curve (Typical)

Pressure Test Circuit ------- 1 Set Red Color Marking(“golden joint”) means pipe will be blanked before hydrostatic test and RT will be done for weld joint after Hydrostatic test.



1100MW SUGEN CCPP HRSG Attachment A

8.1. The pressure curve of hydrostatic test for HRSG

HP F.W. Section Pressure Curve (Typical)

Min.30 Minutes At 385.5 barg(393.4 ㎏ /㎠ ) (hydrostatic Test Pressure)

400

350

300

Inspection Time At 257 barg (261.1 ㎏ /㎠ ) (Design Pressure)

] g r 250 a b [ e r u s 200 s e r P

150

100

50

0 0

50

100

150

200

250

300

Time[min] Hours Time Pressure Up


Pressure Down


1100MW SUGEN CCPP HRSG B.

HP Section Pressure Curve (Typical)

300

Min. 30 Minutes

250

At 218 barg (222.5 ㎏ /㎠ ) (Hydrostatic Test Pressure)

200 ] g r a b [ 150 e r u s s e r 100 P


50

0 0

50

100

150

200

250

Time [min] Pressure U


Pressure Down


1100MW SUGEN CCPP HRSG C.

LP Section Pressure Curve (Typical)

24

20 Min. 30 Minutes At 16.5 barg(16.8 ㎏ /㎠ ) (Hydrostatic Test Pressure)

] g16 r a b [ e r u s12 s e r P

Inspection Time At 11 barg (12 ㎏ /㎠ ) (Design Pressure)

8

4

0 0

20

40

60

80

100

120

Time [Min] Pressure U


Pressure Down


1100MW SUGEN CCPP HRSG D.

LP F.W Section Pressure Curve (Typical)

90 Min. 30 Minutes At 75 barg(76.5 ㎏ /㎠ ) (Hydrostatic Test Pressure)

75

] 60 g r a b [ e r 45 u s s e r P


30

15

0 0

20

40

60

80

100

Time [Min] Pressure


Pressure Down


1100MW SUGEN CCPP HRSG E.

CPH Section Pressure Curve (Typical)

90 Min. 30 Minutes At 75 barg(76.5 ㎏ /㎠ ) (Hydrostatic Test Pressure)

75

] 60 g r a b [ e r 45 u s s e r P


30

15

0 0

20

40

60

80

100

120

Time [Min] Pressure


Pressure Down


1100MW SUGEN CCPP HRSG F.

IP & RH Section Pressure Curve (Typical)

Min. 30 Minutes

60

At 57 barg(58.1 ㎏ /㎠ ) (Hydrostatic Test Pressure) 50

Inspection Time ] g r a b [ e r u s s e r P

40

At 38 barg (38.8 ㎏ /㎠ ) (Design Pressure)

30

20

10

0 0

20

40

60

80

100

Time [Min]

Pressure U


Pressure Down


1100MW SUGEN CCPP HRSG G.

IP F.W Section Pressure Curve (Typical)

Min.30 Minutes

175

At 165 barg(168.4 ㎏ /㎠ ) (Hydrostatic Test Pressure)

150 ] g r 125 a b [ e r u s 100 s e r P


75

50

25

0 0

30

60

90

120

150

180

200

Time [min] Pressure Up


Pressure Down


1100MW SUGEN CCPP HRSG H.

Deaerator Section Pressure Curve (Typical)

Min. 30 Minutes At 12 barg(12.3 ㎏ /㎠ ) (Hydrostatic Test Pressure)

12

10 Inspection Time At 8 barg (8.2 ㎏ /㎠ ) (Design Pressure)

] g 8 r a b [ e r u s 6 s e r P

4

2

0 0

15

30

45

60

75

Time [Min] Pressure U


Pressure Down



I.

HP Bypass Cooling Water Section Pressure Curve (Typical)

Min. 30 Minutes

90

At 87 barg(88.8 ㎏ /㎠ ) (Hydrostatic Test Pressure) 75 Inspection Time At 58 barg (59.2 ㎏ /㎠ ) (Design Pressure)

] 60 g r a b [ e r 45 u s s e r P

30

15

0 0

20

40

60

80

100

Time [Min] Pressure


Pressure Down


Hydrostatic Test Procedure Site RevD

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