ACME - Model ES Series - Large Electric Steam Superheaters
From Electric Boilers - Superheaters
ACME Electric Steam Superheaters are available for use with steam boilers as auxiliary pieces of equipment. Our superheaters are all custom-made and built to meet the specific design requirements of each application. A superheater increases the temperature of the steam but does not increase the latent heat of evaporation. This means that heating with superheated steam is similar to heating with hot air.
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The material or medium being heated will approach the temperature of the superheated steam as long as the steam is not allowed to condense. It should be pointed out that if the steam is allowed to condense, the bulk of the heat will be transmitted at the saturated steam temperature for that pressure rather than at the superheated steam temperature. In addition to applications requiring superheated steam for non-condensing processes, superheaters are also used only to obtain “dry” steam -i.e. 100% vapor – at the point of use.
The requires the re-evaporation of all the water droplets which are carried by the steam. All of the droplets must be evaporated before the steam can be superheated; therefore, a few degrees of superheat above the saturation temperature assures dry steam.
Capacity up to 25,000 lbs. steam/hour, 600 PSI, and 1200 deg. F. Available in carbon steel or stainless steel. Will allow flow variations from 0 to 100% using SCR modulating controls for full capacity.
Description and Performance:
ACME ES Series Steam Superheaters are auxiliary equipment to steam boilers. They are built to meet the specific design and performance requirements of each application.
A superheater increases the temperature of the steam but does not increase the latent heat of evaporation. This means that heating with superheated steam is similar to heating with hot air. The material or medium being heated will approach the temperature of the superheated steam as long as the steam is not allowed to condense. It should be pointed out that if the steam is allowed to condense, the bulk of the heat will be transmitted at the saturated steam temperature for that pressure rather than at the superheated steam temperature.
Capacity up to 25,000 lbs.steam/hour, up to 800 PSIG pressure and up to 1,200oF temperature. Output control is 0-100% using SCR controllers in
order to track steam flow variations. A minimum flow of 20% is recommended.
Pressure vessels are built to ASME Code, National Board or CRN registration are available. Pressure vessels can be in Carbon Steel or Stainless
Steels - SS304 or SS316
The ACME Horizontal or Vertical Superheaters have inlet and outlet flanged connections oriented to suit local conditions and for simple field installation. A Pressure Safety Valve is standard.
Flanged heating elements have Incoloy blades derated to suit application. Flanges are class 300 or higher as applicable. Heating elements have cooling extensions leading to a weatherproof terminal enclosure. A thermocouple is installed on one of the blades for high temperature protection.
ACME Superheaters are insulated using H.T. ceramic fiber. Aluminum plates mounted on an angle frame cover the insulation.
The packaged superheater is delivered on a skid, prewired and prepiped, requiring only piping and electrical connections. Two Service and Operating Manuals are provided with each unit.
Applications
- Superheated steam for non condensing processes and steam Injection.
- Superheated steam for sterilization in hospitals, phamaceutical and food Plants.
- Superheated steam for high temperature drying processes.
- Superheated steam for turbine bearings.
- Superheated steam to avoid moisture at point of use in industrial plants with long distribution lines
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