KOMOTO® desuperheaters are designed to control steam temperature precisely and economically. KOMOTO’s desuperheaters can optimize steam temperature, which can save fuel and in turn save investment cost.
Desuperheaters are used to control the temperature of superheated steam (or gas) in industrial power plants and in the processing industry
Maintenance
- Venture style, fixed nozzle type, variable multiple nozzle type, steam conditioning type are available.
- Easy Installation & compact design.
- Excellent spray quality.
- Large control range.
- Long life.
Design Flexibility
- Tailor made design for each process.
(No restriction for water or steam side flange) - Carbon steel, Stainless Steel, Alloy steel materials are available
Specifications
| Valve type | Desuperheater |
|---|---|
| Valve model | Series 900 |
| Body, Trim type | Venturi type, Variable nozzle type, Fixed nozzle type, Steam atomizing type |
| Valve size | Steam line : 1.1/2″ to 50″ (40mm to 1250mm) |
| Water line : 1.1/2″ to 2″ (40mm to 50mm) | |
| Pressure rating | CL150 to CL2500, DN 25 to 400 |
| End connection | RF, FF, RTJ, BW |
| Body, Trim material | Forged : ASTM A105, A182 F11, A182 F22, and so on |
| Casing : ASTM A217 WC6, and so on |
1.Venturi Type Desuperheater - Model No. 901
KOMOTO venture desuperheater makes cooling water enters through a special streamlined spray nozzle. On the surface of this special spray nozzle a thin film of water will be created. The dynamic energy of the steam flow breaks the surface tension of the film, creating a conical shaped spray of atomized water. Ideal mixing is achieved by high steam flow turbulence, caused by the interaction of the venturi effect and the special shaped spray nozzle. Fast and total evaporation of the cooling water is now accomplished which means that rapid adjustments are possible, and also avoiding the need for any protective liners in downstream piping.
2. Variable Nozzle Type Desuperheater - Model No. 902
Variable Multiple nozzle spray type desuperheater regulates the amount of injection water by varying the number of injection nozzles in operation. Control of nozzle opening is achieved by the positioning of a piston that is operated directly by an actuator mounted on the valve. This simple design means no separate water injection control. This feature enables the desuperheater to be a wide range of Cv values which is customized to specific requirements.
3. Fixed Nozzle Type Desuperheater - Model No. 903
KOMOTO’s mechanical fixed nozzle type of desuperheater is designed primarily for use in low capacity superheated steam systems where the load is fairly constant. The design provides a simple, cost conscious but effective method of steam temperature control.
4. Steam Atomizing Type Desuperheater - Model No. 904
KOMOTO’s steam atomizing type of desuperheater is designed for high steam turndown situation. A steam atomizing nozzle allows a small amount of steam (1~2 mass% of the main steam flow is recommended) to enter the nozzle upstream of the cooling water. The atomizing steam breaks up the cooling water and provides decent quality of water drop for better evaporation.
