EWT Water Technology

Condensate Tank

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Summary:

A condensate tank serves for collection, intermediate storage, and return of hot condensate occuring in →water-steam-cycles, for example pipeline condensate or process condensate.

Depending upon the application, a condensate tank can be designed for atmospheric operation or for pressurized operation. Condensate tanks operating at atmospheric pressure serve for recovery of low pressure condensate, which is then pumped into the →deareator. Pressurized condensate tanks serve for preservering the pressure and temperature of high pressure condensate, which – in case of sufficient quality – can often be pumped directly into the steam boiler.

Condensate tanks are a main component of heat recovery systems, together with systems for flashing and phase separation, vent condensation or direct contact heat recovery, as well as for condensate quality monitoring and →condensate polishing.

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Design Example:

Condensate recovery plant, consisting of condensate tank, condensate pumps, internal piping including valves and instrumentation.

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Applications:

Condensate recovery: Collection and intermediate storage low pressure condensate.
Condensate recovery: Pressure and temperature preservation of high pressure condensate.

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Technical Data:

storage volume	available from approx. 0.5 up to 100 m³
storage time	usually 15 ... 120 minutes
operating pressure	≤ 0.5 bar, atmospheric condensate tank ≤ 40 bar, high pressure condensate tank
operating temperature	≤ 111 °C, atmospheric condensate tank ≤ 251 °C, high pressure condensate tank
code for pressure vessel manufacturing	• not specified, "sound engineering practice" • EN 13445 • AD 2000 • VGB-S-110-R-00 (replacement for VGB-R 110 L) • GOST R (export certificate for the Russian Federation)
material options	pressure vessel	• carbon steel (e.g. S235JR, P265GH) • low alloy steel (e.g. 16Mo3) • stainless steel (e.g. 1.4301, 1.4571)
	pipelines	• carbon steel (e.g. P235GH) • low alloy steel (e.g. 16Mo3) • stainless steel (e.g. 1.4404, 1.4541)
	valves	• brass (e.g. CW617N, CW710R) • grey cast iron (e.g. 5.1301) • spheroidal cast iron (e.g. 5.3103, 5.3106) • cast steel (e.g. 1.0619) • stainless steel (e.g. 1.4401, 1.4408) • high-temperature steel (e.g. 1.7335, 1.7357)
	gaskets	• ethylene propylene diene monomer rubber (EPDM) • polytetrafluoroethylene (PTFE) • NBR composite • graphite composite
	steelwork	• carbon steel (e.g. S235JR) • stainless steel (e.g. 1.4301)
control options	level control	• electric, intermittent (on/off control) • electric, continuous (PI, PID, or 3-point control)
	pressure control	• without • mechanical, continuous (P control) • electric, continuous (PI, PID, or 3-point control)
	temperature control	• without • mechanical, continuous (P control) • electric, continuous (PI, PID, or 3-point control)

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Downloads:

drawing: condensate tank, horizontal, atmospheric

→further downloads

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2018-05-05 • water treatment made in Germany • Company Information • Privacy