Seamless Steel Tube Reheater In Boiler Heat Resistance With Safety Valves

Heat Resistance Seamless Steel Tube Super heater Reheater Price waste heat boiler

Resistance Seamless Steel Reheater General

1. The boiler is furnished with reheaters, where the steam is reheated to improve cycle efficiency after high pressure part of the steam turbine. Reheater system increase boiler LP – steam, which is turbine’s IP-steam (IP = IntermediatePressure), temperature after turbine HPcasing.

2. After reheater steam is lead to turbine IP-casing. Steam from the pressure reduction valve after superheater IV is taken to the inlet of the reheater I. The valves are arranged so that the pressure reduction station (S1 LBH10/20 AA201) controls boiler HP –steam pressure, but functioning also as a safety valves of the HP –steam system (in the cold reheater line).

Hot Reheat System

1. Hot reheat steam system has two safety valves, which functions also as pressure controlling device’s. Hot reheat system valves blow first and therefore in some operation situations HP –pressure station valves can be maintain closed.

2. These valves are used for regulating the boiler pressure especially during start ups (or shut down). The start-up steam line is led to atmosphere trough a silencer. The reheat steam enters to reheater IA, which is of similar construction to superheater I and located in the back pass of the boiler after SH II. Reheater IB is after SH I.

3. Reheat steam temperature is maintained at design value typically over load range 60 –100 % of MCR. Compared with feed water spray control by-pass control gives higher plant efficiency. Final reheating takes place in reheater II, which is similar in construction to Intrex superheaters and is located in the return leg. All superheaters and reheaters are fully drainable.

Differences

100% RT Test

Squeezing

After Squeezing

Dehai Boiler is a manufacturer of A-class boiler(Power station boiler,industrial boiler,HRSG,waste-to-energy boiler,biomass boiler) and correlated A-class pressure parts intergrating the design,fabrication,installation,repair and mainteance.

Dehai has ISO9001:2008 certificate issued by France AFAQ-EAQA Ltd,A-class boiler manufacturing license,ASME S Stamp and U Stamp authorized certificate.

Through effective management system and high quality products,Dehai became the qualified supplier of many famous boiler factories and energy companies and has won a lot of stable customers both domestic and abroad ,such as :Amec Foster Wheeler,Alstom,Dongfang Boiler,Harbin Boiler,Hangzhou Boiler,etc.

Based on the business idea of "High quality for survival and perfect service for development",we shall care for customers' demand and keep improving our work permanently. To create Dehai brand,is to serve clients with our improved products and better performance.

Dehai is located in Economic and Technological Development Zone,Zhangjiagang City,Jiangsu Province. S38 highway Zhangjiagang exit is about 1.5 kilometers to the north of our company and the traffic is very convenient.