Hot wells

Description

Hot wells are used to accumulate water-steam condensate coming from the processing equipment running on steam. Steam liquefaction occures in hot wells, that is, condensate formation, which may be reused. The hot wells may also be used to store hot water at temperature up to + 95ºC, serve as drain tanks.

The main operation facilities are boiler-houses, heat power and generation equipment, heat consumers, power plants and other processing lines.

Hot wells production at SARRZ

The Saratov Reservoir Plant produces hot wells up to 100 m3 in accordance with standard design solution 903-3-04S-91 "Condensate Tanks".

Depending on the ambient temperature, steel grade and sheet metal thickness (3-16 mm) are calculated. So, while in the operation up to -20°C structural carbon steel St2ps2 is used; up to -30°C - structural commercial-quality steel (VSt3sp5) and alloyed steel ST20; between -30...-50°C - low alloyed steel 09G2S.

Due to the high corrosion of the steam-water mixture, the inner surface is covered with corrosion-resistant compounds. For ease coating, all stiffeners are placed on the outside of the shell.

If it is necessary to maintain the operating temperature above +45°C, heat insulation with a thickness of up to 100 mm is equipped on the outer side of the shell.

Hot wells of large volume are equipped with a ladder and a maintenance platform for convenient access to the assembly cover.

Hot wells technical features

Criteria Value
Processing medium watersteam, condensate, water
Volume, m3 1-100
Design
  • horizontal
  • without heat insulation
  • with heat insulation
Medium temperature, ºС up to +100
Typical processing pressure, MPa up to -50
Processing medium density, t/m3 up to 1.1
Positive pressure, MPa
  • 0.02 (non-pressure hot well)
  • 0.3 (pressure hot well)
Negative pressure, MPa -0.00025
Material design of structural points St2ps2, St20, VSt3sp5, 09G2S
Heat insulation loading, MPa 0.00045
Climatic category NF 3
Seismic activity at the operational site up to 9 points
Estimated service life, years 20

Hot wells design

The body is a cylindrical welded shell with conical, spherical or elliptical bottoms and stiffeners placed on the outer surface.

It is installed on a concrete foundation at site.

Thehot wells are provided with fittings for steam supply and condensate return, a branch pipe for safety valve installation, a assembly cover and a drainage line. The equipment layout is designed in accordance with customer's requirements and may consist of:

  • low and highlevel indicators
  • temperature gage
  • pressure gauge
  • sampler
  • level alarm
Hot well

Typical dimensional specifications of hot wells*

Volume, m3 Pressure, MPa
(kgf/cm2)
Temperature,
С°
Diameter,
mm
Length,
mm
Height,
mm
Shell thickness,
mm
Weight, kg
geom. active.
1 0.9 0,015+0,02
(0,15+0,2)
104 1000 1600 1832 3 696
2 1.7 1400 1700 2232 895
3 2.6 2300 991
5 4.3 1800 2500 2632 1388
10 8.8 2000 3700 2838 2147
16 14.0 2200 4800 3040 4 2829
25 22.0 2600 5400 3440 3604
40 36.0 3200 5900 4048 8 6682
50 43.0 7100 7362
80 70.0 3800 8100 4648 9546
100 90.0 10300 10868
1 0.9 0,3
(3,0)
142 1000 1600 1838 5 795
2 1.7 1400 1700 2238 8 1043
3 2.6 2300 8 1205
5 4.3 1800 2500 2638 8 1627
10 8.8 2000 3700 2844 10 2504
16 14.0 2200 4800 3048 10 3576
25 22.0 2600 5400 3448 12 4597
40 36.0 3200 5900 4056 16 8050
50 43.0 7100 16 8925
80 70.0 3800 8100 4656 16 11673

How to order hot well manufacture at the Saratov Reservoir Plant?

In order to buy it, You may:

  • send technical requirements at e-mail
  • contact the Sales Department at 8-800-555-9480
  • use the "Request for quotation" form, provide contact information, and our specialist will contact you

 

See also:

Rectangular tanksSilos for granular materialsSilos for liquids
Silos for bulk materialsSurge tanksNon-pressure tanks
Pressure tanksHot wellsTanks for CHP-plants, NPGS and HPP
Stainless steel tanks