Extraction condensing and backpressure combined unit based on E-level ALSTOM combined cycle
A back pressure unit and combined cycle technology, applied in combined engines, mechanical equipment, steam engine installations, etc., can solve problems such as low efficiency of gas turbines, and achieve the effects of improving overall efficiency, optimizing start-stop characteristics, and reasonable structure layout
Inactive Publication Date: 2016-05-04
ZHEJIANG ELECTRIC POWER DESIGN INST +1
View PDF8 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In the gas-steam combined cycle, since the back pressure machine needs to adjust the steam intake to adjust the load, and the efficiency of the gas turbine is low under low load conditions, the 9E-level combined cycle "one-to-one" condensing back-pressure unit is There is no precedent for production in China
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0021] The flue gas produced by the gas turbine enters the waste heat boiler to produce steam with three parameters: high, medium and low. The steam volume generated by a single waste heat boiler is: high-pressure steam 220t / h, medium-pressure steam 50t / h, and low-pressure steam 25t / h. The main steam and water pipeline adopts the design of parent pipe, which can be switched to run. High-pressure steam (7.733MPa, 503.2°C) enters the extraction condensing machine and back-pressure machine for power generation; part of the medium-pressure steam (1.3MPa, 300°C) enters the extraction condensing machine for power generation, and part of it enters the heat supply header for external use Heating; low-pressure saturated steam (0.69MPa, 182.2°C) enters the vacuum deaerator to deoxidize the make-up water; part of the low-pressure superheated steam (0.32MPa, 182.2°C) enters the condensing machine for power generation, and the other part enters the lithium bromide unit. The exhaust heat su...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an extraction condensing and backpressure combined unit based on E-level ALSTOM combined cycle. The extraction condensing and backpressure combined unit comprises a combined generator set formed by connecting a backpressure unit with an extraction condensing unit. A three-pressure type waste heat boiler for providing steam for the extraction condensing unit and the backpressure unit is arranged behind an E-level gas turbine; high-pressure steam, middle-pressure steam and low-pressure steam generated by the waste heat boiler are used for heat power and cold combined production; a steam and water system which is made of a main tube and can be switched for running is included; high-pressure steam generated by the waste heat boiler serves as main steam and enters the extraction condensing unit and the backpressure unit to do work for electricity generation; the middle-pressure steam generated by the waste heat boiler can be used for entering the extraction condensing unit for electricity generation, supplying heat for the outside and providing auxiliary steam for a whole plant; the low-pressure steam generated by the waste heat boiler is connected into a configured vacuum deaerator through a pipeline and is used for oxygen removal, and when the two units run at the same time, the low-pressure steam generated by the waste heat boiler is supplemented into a low-pressure cylinder of the extraction condensing unit for electricity generation.
Description
technical field [0001] The invention relates to an E-level ALSTOM combined cycle condensing and backpressure combined unit, especially a "one-to-one" multi-shaft gas turbine using an ALSTOMGT13E2 gas turbine, belonging to the technical field of gas-steam combined cycle units. Background technique [0002] Steam turbines used in domestic gas turbine combined cycle power plants generally include two main forms, namely back pressure units and extraction condensing units. The back pressure unit has a high heat-to-electricity ratio and thermal efficiency, and is an ideal form of heating unit, but its heat supply is easily limited by downstream users; the operation mode of the extraction condensing unit is relatively flexible, and the heating parameters are high, especially suitable for Industrial steam users. [0003] In terms of gas turbines, the gas turbine exhaust temperature of F-class combined cycle units can reach 584-640 °C. There is more room for the steam cycle. The st...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F01K11/02F01D13/00
CPCF01D13/00F01K11/02Y02P80/15
Inventor 刘建波宋志毅李硕平陈书平邵杰程阳潜纪儒李立光旭徐红波
Owner ZHEJIANG ELECTRIC POWER DESIGN INST