Thermax Direct and Sparged Steam Vaporizers Page

TVN Series Automatic Direct Steam Vaporizers

Standard design vaporizers for all cryogenic and liquefied gases - All units feature
Thermax’s unique in tube vortex generators for high surge free performance
Capacity to over 1,000,000 SCFH, performance to 100,000 BTU/HR FT².

General Description

Horizontal steam chamber
Removable U-bend bundle-18 BWG
Stainless Steel tubes standard
Gas discharge temperature controller connected to pneumatic steam control valve and an outlet condensate trap assembly. Pressure build coils as a part of the tube bundle are optional
Computerized full ASME VIII Div 1
Code design and TEMA C as standard
CRN, Stoomwezen, CUA, TUV and
other design approvals available

Controls & Steam Trim

All pneumatic control valve and temperature sensor
Pneumatic supply pressure regulator
Steam strainer
Steam line drip trap
Oversize thermostatic main
condensate trap
Shell relief valve
Weatherproof shell insulation, complete with aluminum or PVC outer jacket weather guard
ASME Code Stamp on shell
and tube bundle

Steam Sparged/Water Ballast Cryogenic Vaporizers

• Achieve high vaporization rates with a limited heat source.
• Thermax steam/hot water ballast vaporizers provide smooth
and reliable vaporization over a wide range of flows.
• Capacity to over 2,500,000 SCFH, Steam out ballast to over 15 minutes.

Features

Thermax modern Vortex Flow™ vaporizing tubes
Removable Stainless Steel bundle(s), welded construction, optional pressure build circuits available
Water ballast tank with integral supports and optional ASME code stamp

Automatic steam sparge heating system
Unique spring compensated sparger heads with variable flow area for noise and vibration free steam injection

Performance

Steam sparged/water ballast vaporizers are designed to meet peeking flows and standby performance in the event of heat source interruption. Tube bundles are sized for a maximum flow at specified pressure and pressure drop. Water ballast size is set by the peaking load at steady stream flow, or the extent of the steam outage. Ballast vaporizers also provide stable vaporization action under rapidly changing gas flows. Standard systems control water bath temperature (170°F typical). Control options can control gas temperature with optional 3-way dilution valve for accurate outlet gas control. Zero to 100% capacity instantaneous step flow provided when kept warm.

Water and Gas Fired System Vaporizers

Cold Water Cryogenic Vaporizers

Thermax TVN-PW cold (process) water vaporizers reduce the cost of energy for vaporization to
nearly zero, depending upon specified design parameters, Thermax PW units will operate on
water temperatures below 50°F, and can deliver vaporized/ superheated gas to within 10°F
(nominal) of the entering water stream.

These Units Can Save Energy On
Oxygen Nitrogen Argon Hydrogen Helium	LNG Ammonia HCL Ethylene Carbon Dioxide	Carbon Monoxide Chlorine Freon Ethane Nitrous Oxide
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Asia Pacific Office: Thermax Inc. 909A High Street Armadale, VIC 3143 Australia Tel: +61-3-9821-5888 Fax: +61-3-9821-5899 E-mail: wa@thermaxinc.com		Main Office: Thermax Inc. 695 Dartmouth Street S. Dartmouth MA 02748 USA Tel: +1-508-999-1231 Fax: +1-508-993-4036 Web: www.thermaxinc.com E-mail: w@thermaxinc.com		European Office: Thermax UK Ltd. The Malthouse off Hummer Road Egham, Surrey TW209BD United Kingdom Tel: +44 (0)7900 914040 Alt: +44 (0)1784 487929 Fax: +33-553-22-67-81 E-mail: we@thermaxinc.com
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