System Features
Low parameter corrosive steam heat source steam turbine system introduction.
Low parameter saturated steam turbine is adopted, and the blades are specially treated to prevent water erosion.
Special design of the unit focuses on the corrosion of esterified steam, and the flow part of the steam turbine is designed with all stainless steel to ensure that the equipment can run stably for a long time in production. Since there is a small amount of non-condensable gas easily soluble in water in the esterified steam, the aftercooler is added in the vacuum pumping system to ensure the vacuum stability in the operation of the steam turbine system.
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Chemical fiber industry esterification steam turbine waste heat power generation project
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According to the site situation, the content of technical reform is:
A new set of 1600kW low parameter corrosive steam heat source steam turbine power generation system was added.
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Project Process Drawing
Heat source process flow chart
Waste heat power generation system PFD
Retrofit Scheme
Host characteristics
Boomtec using the characteristics of advanced turbine technology, parametric design is adopted on the rotor, and detailed modular design is adopted for different positions. Compared with the traditional blade profile, Boomtec’s proprietary technology is used to transform the blade parts, and the enthalpy drop is small and the secondary flow is significantly weakened.
At the same time, the blade profile has a wide adaptation range of Angle of attack, and the unit's variable load operation economy is improved. The final long blade is a full-circle self-locking and damped torsional long blade with low dynamic stress, and the static blade is a bent and twisted blade with good aerodynamic performance. Steam seals and water seals are added to the tip of the turbine blade and the shaft to prevent air leakage and reduce heat consumption.
Introduction to Design Features of Condenser
The condenser in the system adopts a shell and tube heat exchanger, and the heat exchange tubes are made of 304 stainless steel. The spent steam from esterification is condensed on the shell side, and the condensed liquid enters the hot well.
Water ring vacuum pump introduction
The selected water ring vacuum pump in the system ensures the normal operation of the vacuum state. The water ring vacuum pump has the advantages of simple structure, low manufacturing precision and easy processing. Compact structure, high pump speed, generally can be directly connected with the motor, no deceleration device. Therefore, with a small structure size, you can obtain a large displacement and occupy a small area.
The compressed gas is basically isothermal, that is, the temperature of the compressed gas process changes very little. Because no metal friction surface in the pump chamber, there is no need to lubricate the pump, and the wear is very small. The sealing between the rotating part and the fixed part can be done directly by the water seal. The suction is uniform, the work is stable and reliable, the operation is simple, the maintenance is convenient.
Condensate pump selection introduction
Condensate pump adopts variable frequency pump, which can adjust condensate pump output according to system load to ensure stable liquid level in hot well.
Cold source mode Introduction
The surface cooler uses circulating cooling water to cool the esterification steam. After cooler using chilled water condensation does not condense.
Live Photo
Host Machine
Project Site
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