Kansas City Deaerator Company
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Custom Tray Deaerator


DS Vessel

HH Vessel

Corrosion in boiler cycles is caused by the presence of non-condensable gases such as oxygen and carbon dioxide in the boiler feed water. In order to remove the non-condensable gases, the feedwater is heated and vigorously scrubbed by a counter current flow of steam.

The incoming undeaerated water enters the deaerator though spring-loaded, stainless steel spray valves. These variable orifice valves produce a fine spray in a uniform pattern from 5% to 200% of design. The fine droplets of water maximize the surface area in contact with steam, raising the temperature to within a few degrees of saturation temperature and instantly releasing the majority of the corrosive, non-condensable gases.

The preheated and partially deaerated water flows through the tray stack where the hottest, purest steam vigorously scrubs the water to heat it to saturation temperature and strips the last traces of dissolved gases. KCD trays are among the heaviest in the industry, fabricated of 16 gauge, type 430 stainless steel.

The entire deaeration process takes place in a stainless steel enclosure that eliminates any need for vessel lining or cladding and ensures a long life with little maintenance.


Features

  • Two stage deaeration with counterflow operation
  • Quiet operation
  • Rugged design with "Central Station" durability
  • Oxygen removal to 0.005 cc/liter (7ppb) per HEI
  • Replacement heater to mount on existing storage vessels
  • Certified ASME Construction
  • Custom units designed to meet specific needs
  • DS Units up to 800,000 #/hr
  • HH Units up to 16,000,000 #/hr
  • Guaranteed performance over wide load swings
  • Vacuum units
  • Options:
    a. Accessory Package
    b. Accessory Piping
    c. BF Pump Package
    d. Heat Exchange Institute (HEI) Design
  • Integral units per ASME Section I

Download complete Custom specifications PDF
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Selection Chart


10 Minutes Storage

PROJECT

         

NO. UNITS

         

ARRANGEMENT

         

SPACE LIMITATIONS

         

PERFORMANCE REQUIREMENTS

 

FLOW

TEMP

 

ENTHALPY

PRESSURE

DESIGN

#/HR

DEG. F

 

BTU/LB

PSIG

DELIVERED CAPACITY

         

WATER INLET

         

MAKEUP

         

LP CONDENSATE

         

HP CONDENSATE

         

STEAM

         

VENT RATE
(% of Steam Inlet)

0.5

       

EFFLUENT O2 (cc/l)

0.005

       

EFFLUENT CO2 (ppb)

0

       

Storage Tank Cap. @ OF (gal)

         

TECHNICAL REQUIREMENTS

DESIGN

CONNECTIONS

 

SIZE

RATING

ASME CODE LATEST EDITION

SECTION VIII, DIV. 1

FEEDWATER
INLET

     

HEI LATEST EDITION

REQ'D

STEAM INLET

     

DESIGN PRESSURE (psig)

 

RELIEF VALVE

     

VACUUM

 

THERMOMETER

     

DESIGN TEMPERATURE (F)

 

PRESSURE
GAUGE

     

SHELL THICKNESS

 

VENT

     

HEAD THICKNESS

 

HEATER MANWAY

     

TYPE HEADS (F&D/2:1)

 

HP RETURNS

     

CORROSION ALLOWANCE

0.025 INCH

BFP RECIRC

     

VACUUM RINGS

 

BFP SUCTION

     

RADIOGRAPHY: HEAD & SHELL

RT-2 MINIMUM

OXYGEN SAMPLE

     

MAG. PARTICLE INSPECTION

INTERNAL
NOZZLES

STORAGE
MANWAY

     

LIQUID DYE PENETRANT

SS NOZZLES

OVERFLOW

     

POST WELD HEAT TREATMENT

REQ'D

LEVEL CONTROL

     

CONNECTIONS

 

GAUGE GLASS

     

<2.5 INCH

 

CHEMICAL FEED

     

>2 INCH

 

DRAIN

     

MATERIALS OF CONSTRUCTION

SHELL

SA516-70

SUPPORTS

 

SA-516-70

HEADER

SCH 10, 304L S.S. min

BAFFLES

 

304L SS

TRAYS

16 ga, 430 S.S.

NOZZLES

 

A 106 gr. B

SPRAY VALVES

316 S.S.

FLANGES

 

SA 105

TRAY ENCLOSURE

1/8" 304L S.S. MIN

     

VENT CONDENSER

1/8" 304L S.S. MIN

     

ACCESSORIES

 

FLOW (LBS/HR)

PRESSURE (psig)

   

Inlet Valve (specify one)

     

  Thermometer (2)

Mechanical Control

     

  Pressure Gauge

Pneumatic Control

     

  Vent Valve/Orifice

Electronic Control

       

Steam PRV (specify one)

     

  Overflow Valve

Pneumatic Control

     

  Level Switch (2)

Electronic Control

     

  Gauge Glass (specify one)

Relief Valve

     

    - Red Line Pyrex

Sentinel

     

    - Reflex

Specified capacity

     

    - Magnetic

NOTE: Marked items are
to be supplied by Vendor

       

Accessories

A
 WATER INLET      
A1
 Inlet Valve      
    Mechanical
STD
STD
 
      Pneumatic
OPT
OPT
 
A2
Level Controller
STD
STD
 
  Level Transmitter
OPT
OPT
 
A3
Inlet Valve Bypass Valves
OPT
STD
 
A4
Inlet Valve Bypass Piping
OPT
STD
 
A5
Inlet Valve Bypass Strainer
OPT
STD
 
B
STEAM CONTROL      
B1
Steam PRV  
OPT
 
      Self Contained
OPT
OPT
 
      Pneumatic
OPT
OPT
 
B2
Steam PRV Controller
OPT
OPT
 
B3
Steam PRV Bypass Valves
OPT
OPT
 
B4
Steam PRV Bypass Piping
OPT
OPT
 
B5
Steam PRV Bypass Strainer
OPT
OPT
 
C
RELIEF VALVE      
C1
Relief Valve      
      Sentinel
STD
STD
 
      Full
OPT
OPT
 
C2
Relief Valve Exhaust Piping
OPT
OPT
 
D
THERMOMETER      
D1
(2) 5" Thermometer w/ss wells
STD
STD
 
E
PRESSURE GAUGE      
E1
(1) 4 1/2" Pressure Gauge
STD
STD
 
E2
Siphon & Cock
STD
STD
 
E3
Pressure Transmitter
OPT
OPT
 
F
VENT      
F1
Vent Valve
STD
STD
 
F2
Vent Orifice w/ Flange
OPT
OPT
 
F3
Vent Bypass Valves
OPT
OPT
 
F4
Vent Bypass Piping
OPT
OPT
 
H
VACUUM BREAKER      
H1
Vacuum Breaker
STD
STD
 
M
BFP RECIRC      
M1
BFP Recirc Shutoff
N/A
OPT
 
M2
BFP Recirc Check
N/A
OPT
 
M3
BFP Recirc Orifice
N/A
OPT
 
  BFP Recirc ARC Valve
N/A
OPT
 
M4
BFP Recirc Piping
N/A
OPT
 
M5
BFP Recirc Pressure Gauge
N/A
OPT
 
N
BFP SUCTION      
N1
BF Pumps      
      (2) 100% Capacity
N/A
STD
 
      (3) 50% Capacity
N/A
OPT
 
  Motors      
      ODP
N/A
STD
 
      TEFC
N/A
OPT
 
N2
BFP Suction Isolation Valve
N/A
STD
 
N3
BFP Suction Strainer
N/A
STD
 
N4
BFP Suction Piping
N/A
STD
 
N5
BFP Suction Expansion Joint
N/A
STD
 
N6
BFP Discharge Pressure Gauge
N/A
OPT
 
N7
BFP Discharge Check Valve
N/A
OPT
 
N8
BFP Discharge Isolation Valve
N/A
OPT
 
O
CHEMICAL FEED
     
O
Chemical Feed Quill
OPT
OPT
 
Q
OVERFLOW
     
Q1
Overflow Valve/Trap
STD
STD
 
Q3
Overflow Piping
OPT
STD
 
R
LEVEL SWITCHES
     
R1
Level Switches
     
      High and Low (TWO)
STD
STD
 
      High High (ADDITIONAL)
OPT
OPT
 
R2
Level Switch Bridle Piping
OPT
OPT
 
S
GAUGE GLASS
     
S1
Gauge Glass
     
      Red Line Pyrex
STD
STD
 
      Reflex
OPT
OPT
 
      Magnetic
OPT
OPT
 
S2
Gauge Glass Bridle
OPT
STD