pid spray water de superheater boiler cfb

Product thermal capacity: 4-35 t/h
Working pressure: 1.0-2.5 MPA
Outlet temperature:: 184-350 ℃
Available fuel: Bituminous coal, lean coal, anthracite
Available industries: Heating, chemical, food, tobacco, textile, print and dyeing, feed, medicine, building materials, wine, hospital

Steam Temperature Control | Control Not

The spray water comes from either an intermediate stage of the boiler feedwater pump (for reheater spray) or from the pump discharge (for superheater spray). Other methods of steam temperature control include flue gas recirculation, flue gas bypass, and tilting …

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Water Handbook - Preboiler & Industrial Boiler

2019-5-24 · Learn more about industrial boiler water treatment, causes and types of boiler corrosion, inlet spray valve spring cracking, corrosion of vent condensers due to oxygen pitting, and erosion of the impingement baffles near the steam inlet connection. If the superheater is drainable or if the boiler does not have a superheater, the boiler

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Techno-economic analysis of PC versus CFB combustio

2018-3-15 · Techno-economic analysis of PC versus CFB combustion technology 5 The combustion of pulverised coal for power generation has been taking place since the 1920s, whereas firing coal in circulating fluidised beds (CFB) was first piloted in 1979, and …

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Desuperheaters in Boilers onboard Shi

This water loss could result in water hammer and subsequent damage in the auxiliary system. Spray type external desuperheater is shown in the diagram below, in which feed water of low solids content at 3.5 bar above steam pressure is supplied at a controlled rate into a vertically arranged vessel to mix with superheated steam.

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Difference between attemperator and desuperheater -

2012-6-14 · An attemporator might be used between superheater zones in a multi-zone superheater boiler or in a re-heater zone to control reheater outlet temperture. Desuperheaters are generally found in steam lines away from the boiler or boiler outlet piping where there …

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Boiler Modelling and Optimal Control of Steam

2017-12-23 · Boiler Modelling and Optimal Control of Steam Temperature in Thermal Power Plants 679 control method described above, due to the boiler and superheater dynamics and associated large process lag, it takes a long time to estimate whether the amount of spray…

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Identification and control of power plant de …

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Design of Superheated Steam Temperature Control …

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(PDF) Thermal Analysis of Superheater Platen Tubes in

Cited by: 30Cited by: 1Thermal Analysis of Superheater Platen where de fining the The thermal-hydraulic calculation and analysis of the medium temperature platen superheater in a 300 MWe CFB boiler. Article.

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Superheater steam system - XA

2016-3-26 · it is also important that chemical dosing of non vaporating chemicals to the feed water takes place after the spray water take off. Vaporating oxygen scawangers can be dosed before because, they decomposes to a gaseous form and does not cause scaling. Following superheater IV the steam enters the main steam pipe line. The final steam

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Gas-fired(oil-fired) boilers
Coal-fired boilers
Biomass-fired boilers
Thermal oil heaters
Hot water:0.7-14 MW
14.1-21 MW
21.1-29 MW
29.1-75 MW
Steam :  1-10 t/h
11-20 t/h
21-90 t/h
91-140 t/h