Jiangsu Sat-Cham Energy Technology Co., Ltd.
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Carbon Steel Superheater And Reheater For CFB Boilers In Power Plant
What are reheater and superheater subjected to?
Super heater (SH) and reheater (RH) tubes operate at tempera tures ranging from 400°C to over 600°C depend ing on the location and design. The SH/RH tube materials are subjected to accumulation of damage by creep and hence designed to give a finite ser vice life.
What does a superheater do?
Superheater - Wikipedia
A superheater is a device used to convert saturated steam or wet steam into superheated steam or dry steam. Superheated steam is used in steam turbines for electricity generation, steam engines, and in processes such as steam reforming.
Details:
| 1 | Material composition | Carbon steel, alloy steel or heat-resistant steel, collection boxes and other supporting material. Tubes are customized types of specifications. |
| 2 | Design pattern | Vertical or horizontal layout. |
| 3 | Advantages | Beautiful appearance, size, accuracy, first-class bending and welding technology, first-class detection equipment. |
Product Introduction:
Functions and characteristics of superheaters and reheaters
functions of superheaters and reheaters:
Superheaters and reheaters are important parts for the heating surfaces, used to increase steam temperature, aiming to improve steam enthalpy and further to increase the thermal circulation efficiency for power station.
Superheaters work to heat surnatured steam to superheated steam with a certain tempetature. When boiler loads or other working conditions change, it is necessary to make sure superheated steam temperature to be normal, and within allowable range of temperature variation.
From the thermal circulation in power station, the original parameters of pressure and temperature is higher, the thermal efficiency of circulation is better, or the steam humidity of the steam turbine rear is too high, influencing its safety. While the superheaer steam temperature is limited by metal materials, at present, due to limitation of metal materials, superheated temperature for most power station boilers are still within the range of 540-555 dgrees, and to avoid the steam humidity of blade of steam turbine rear too big, thus middle reheating system is applied.
Functions of reheaters are to heat exhaust of steam turbine high pressure cylinder to the reheated temperature which is close or equal to superheated temperature, and then send them to middle pressure cylinder and low pressure to expand and work to increase the dryness of blace of steam turbine rear. Usually, the pressure of reheated steam is one fifth of that of superheated steam. Application of reheating system can increase the thermal efficiency for power stations by 4-5%.
So far in our country, units with capacity over 125mw all apply one time middle reheating system. Double reheating can increase again the thermal efficiency of circulation by 2%, but the system is very complicated, it is not applied for national units, but it is common for large boilers overseas.
Application:
air cooler, fired heater, heat exchanger, marine boiler, economizer, power plant boiler, HRSG boiler, waste heat recovery unit, air heater etc
Characteristic:1.Anti-corrosion2.Anti-wear3.Lower contact resistance 4.Higher Stability
Our products can be modified according to our customers' needs and the situation.we design and manufacture safe,reliable and efficient H-fin tubes.it has also completed stand-alone product quality assurance systems.Production of H-fin tubes are with high heat transfer efficiency, they have flue gas resistance and are designed for a small space.
| Technical parameters | The high degree of fin 0-16mm(or outside diameter of fin φ25-φ75); Pitch of fins 2.0-5.0mm; Length of finning tube 0.5~ 14m. |
| Single metal rolling finning tube | Pure aluminum 1060 or aluminum alloy 6063,6061. Outside diameter Shall be less than 40mm |
| Double metal rolling finning tube | Tube-based protection from the outer layer of aluminum tubes,corrosion-resistant,Tube-based can be made of carbon steel pipe,in addition to,stainless steel tube and copper tube can also be used, as well as titanium alloy tube |
| Package | The aluminum finned tubes are well packed in plastic film in the inner and steel fram in the outer |
Q1: How long is the warranty period?
We provide 18 months warranty for all spare parts(exclude fragile parts).
Q2: How can we guarantee quality?
1 All machines are in strict accordance with the ISO quality and CE system requirements.
2 Each procedure is crafted by professional Skilled labour, followed by particular QC
3 All information of our products can be checked in efficient management system.
Q3: What can you buy from us?
Boiler Economizer, Boiler Fin tube, Boiler Air preheater, Boiler superheater, Boiler membrane wall,
Boiler manifold headers and other pressure spare parts.
Q4: What kind of service do you provide?
Before sales:
Provide productinformations, market research forecasting, product customization,product processing,consultation and other services for your convenience.
Q5: Are you a factory or trading company, where are you located?
We are a factory, just 130km(2 hours by car) away from Shanghai Airport.
We offer pickup service at Shanghai for your visit.
