CN102183003B - Bypass afterburning composite regenerative turbo supercharging system of boiler - Google Patents
Bypass afterburning composite regenerative turbo supercharging system of boiler Download PDFInfo
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- CN102183003B CN102183003B CN201110063448A CN201110063448A CN102183003B CN 102183003 B CN102183003 B CN 102183003B CN 201110063448 A CN201110063448 A CN 201110063448A CN 201110063448 A CN201110063448 A CN 201110063448A CN 102183003 B CN102183003 B CN 102183003B
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Abstract
The invention aims to provide a bypass afterburning composite regenerative turbo supercharging system of a boiler. The system comprises a boiler, a gas compressor, a turbine, valves, a bypass pipe, an afterburning chamber, a gas storage tank, a regenerator and a mixing pipe, wherein an inlet of the gas compressor is provided with the mixing pipe, and an outlet of the gas compressor is connected with the boiler through a regenerative pipe; a first adjusting valve is arranged between the mixing pipe and the regenerator; a first branch of an outlet of the turbine is connected with atmosphere; a second branch of the turbine is connected with the regenerator through a second adjusting valve; the bypass pipe, a bypass valve, the afterburning chamber and a check valve are arranged between the gas compressor and the turbine; and the gas storage tank is connected with the afterburning chamber through a gas escape valve. Through the system, the running of a supercharging set is free from limitation of a flue gas and air system and a steam system of the boiler, transient response characteristic of a supercharged boiler is improved, low working condition performance and starting performance of the supercharged boiler are improved, thermal balance and steam balance of a ship power device are more stable, and viability of a ship is improved.
Description
Technical field
What the present invention relates to is a kind of pressure charging system of large-sized boiler.
Background technology
Having turbo charged steam boiler is the maximum achievement in marine vapor power set field.Supercharged steam generator has substituted the big stem-driven turboblower of steam consumption with compressor, effectively utilizes boiler to discharge the energy of flue gas, improves the pressure of boiler furnace inlet air, has greatly increased the operating efficiency of boiler.The practical application of nearly decades proves that the Turbo-charged Marine Boiler device all has comparatively good performance at aspects such as reliability, vitality, economy, weight and size, mobility, durability.It is the most obvious that wherein wt size index is improved, and common marine boiler device far can not be by comparison, and the reducing of power set helps boats and ships to increase equipment, improve the speed of a ship or plane, improves mobility and fighting capacity.
Existing supercharged steam generator mainly is made up of compressor, turbine, auxiliary steam turbine and boiler, realizes the balance of the supercharging power of the assembling unit by auxiliary steam turbine, the startup of device and quicken also all to lean on the adjusting auxiliary steam turbine to realize.Whether auxiliary steam turbine need devote oneself to work, and is that the air consumption of auxiliary steam turbine has influence on the thermal balance and the balance of steam of Ship Power Equipment to a great extent by the selection of power-balance point decision, and this will inevitably cause interference to the operation of other Steam Power Equipment.And in the load up process; The acceleration of supercharging unit not only will receive the volume inertia effects of compressor, turbine, auxiliary steam turbine and decelerator rotary inertia and air inlet-outlet pipe; Also to receive the air and gas system of boiler and the multiple influence of vapour system; So the transient response characteristic of supercharging unit is poor, low-load performance and startability are bad.
The fluctuation of atmospheric temperature also can have a strong impact on the work of supercharged steam generator, when boats and ships to high latitude when navigation zone, environment temperature will reduce gradually; Atmospheric density raises gradually, and the mass flow that gets into compressor can increase gradually, and the through-current capacity of turbine strengthens; The acting ability strengthens, thus the pressure ratio of compressor must improve, work equalization point to surge line near; For fear of this situation, traditional method is to exit through the bypass of compressor to consume the turbine excess power, makes the work equalization point away from surge line; But cross when low when temperature, the work equalization point can greatly reduce the efficient of unit near choke line; Perhaps there is not the work equalization point, makes the unit can not stable operation.And improve intake air temperature through the method that electric heater is installed at compressor inlet port, and can improve complexity, the fault rate of unit, reduce the economy of unit operation.
Summary of the invention
The object of the present invention is to provide the compound backheat turbo charge system of boiler bypass afterburning of the shortcoming that overcomes prior art mapping, low-load performance and startability difference.
The objective of the invention is to realize like this:
The present invention includes boiler, compressor, turbine, valve; It is characterized in that: also comprise bypass pipe, afterburning chamber, air accumulator, regenerator and blending pipe; Blending pipe is installed in the import of compressor, and the outlet of compressor connects boiler through product heat cal rod, and first control valve is installed between blending pipe and the regenerator; First branch of turbine outlet inserts atmosphere; Second branch of turbine receives regenerator through second control valve, and bypass pipe, by-passing valve, afterburning chamber and non-return valve are installed between compressor and the turbine, and air accumulator links to each other with afterburning chamber through vent valve.
Advantage of the present invention is: make the operation of supercharging unit break away from the restriction of boiler air and gas system and vapour system; Improved the supercharged steam generator transient response characteristic; Improved supercharged steam generator low-load performance and startability, strengthened combustion process, made the thermal balance of Ship Power Equipment and balance of steam more stable; Increase ship manoeuverability, improved the vitality of boats and ships; Avoided when the sea situation temperature is low, crossing the low surge that causes, improved the stability of supercharged steam generator operation because of the compressor suction temperature.Because the Turbo-charged Marine Boiler compressor inlet port is longer, in blending pipe, compound backheat can reach better effect, so the present invention especially is fit to be applied to Ship Power Equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
Embodiment 1:
In conjunction with Fig. 1; The compound backheat turbo charge system of boiler bypass afterburning comprises boiler 14, compressor 1, turbine 4, valve, bypass pipe 5, afterburning chamber 8, air accumulator 3, regenerator 12 and blending pipe 10; Blending pipe 10 is installed in the import of compressor 1, and the outlet of compressor 1 connects boiler 14, install adjustment valve 11 between blending pipe 10 and the regenerator 12 through product heat cal rod 12; First branch of turbine 4 outlets inserts atmosphere; Second branch of turbine 4 receives regenerator 12 through control valve 13, and bypass pipe 5, by-passing valve 6, afterburning chamber 8 and non-return valve 9 are installed between compressor 1 and the turbine 4, and air accumulator 3 links to each other with afterburning chamber 8 through vent valve 7.
Bypass pipe 5 is installed in above-mentioned compressor 1 outlet additional, and the air supply of passing through is by by-passing valve 6 controls, when boiler 14 load ups; The burner hearth amount of fuel increases, and needs compressor 1 that more compressed air is provided, and compressor 1 will consume more merit; The power that the operation characteristic of supercharged steam generator 14 makes turbine 4 send can not satisfy the power that compressor 1 consumes immediately; Need to regulate by-passing valve 6 this moment part compressed air is got in the afterburning chamber 8, with the fuel oil mixed combustion that sprays in the afterburning chamber 8, the high-temperature fuel gas that burning produces is through non-return valve 9 acting of expanding in the turbine 4; To satisfy the wasted work demand of compressor 1, the outlet of compressor 1 also is equipped with vent valve 2.
The flue gas that above-mentioned turbine 4 is discharged, a part directly enters atmosphere, and another part enters into regenerator 12 through control valve 13, the compressed air of discharging with compressor 1 carries out heat exchange in regenerator 12 after, is drained into atmosphere.
Compressed air behind the above-mentioned process regenerator 12 when the sea situation temperature is higher, all enters into boiler 15 and participates in burning; Through the compressed air behind the regenerator 12; When the sea situation temperature is low; A part enters into boiler 15 and participates in burning, and another part is through the Cryogenic air mixed heat transfer that control valve 14 enters into blending pipe 10 and sucks, and prevents that compressor 1 from crossing the low surge that takes place because of suction temperature.And the burning of fuel is under highdensity air and higher combustion air temperature, to carry out in boiler 14 burner hearths, has therefore strengthened combustion process greatly.
Claims (1)
1. the compound backheat turbo charge system of boiler bypass afterburning; Comprise boiler, compressor, turbine, valve, it is characterized in that: also comprise bypass pipe, afterburning chamber, air accumulator, regenerator and blending pipe, blending pipe is installed in the import of compressor; The outlet of compressor connects boiler through regenerator; First control valve is installed between blending pipe and the regenerator, and first branch of turbine outlet inserts atmosphere, and second branch of turbine outlet receives regenerator through second control valve; Bypass pipe, by-passing valve, afterburning chamber and non-return valve are installed between compressor and the turbine, and air accumulator links to each other with afterburning chamber through vent valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110063448A CN102183003B (en) | 2011-03-16 | 2011-03-16 | Bypass afterburning composite regenerative turbo supercharging system of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110063448A CN102183003B (en) | 2011-03-16 | 2011-03-16 | Bypass afterburning composite regenerative turbo supercharging system of boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102183003A CN102183003A (en) | 2011-09-14 |
| CN102183003B true CN102183003B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110063448A Expired - Fee Related CN102183003B (en) | 2011-03-16 | 2011-03-16 | Bypass afterburning composite regenerative turbo supercharging system of boiler |
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| CN (1) | CN102183003B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295366B (en) * | 2014-09-26 | 2016-07-06 | 广东康菱动力科技有限公司 | The utilization system of high-power diesel generating set and boiler |
| CN104500219B (en) * | 2014-12-24 | 2017-03-08 | 深圳智慧能源技术有限公司 | Piston turbine hybrid engine |
| CN105424392B (en) * | 2015-12-11 | 2017-12-12 | 浙江工业大学 | A kind of supercharged steam generator testing stand |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036414C (en) * | 1992-11-03 | 1997-11-12 | 程大酉 | Advanced regenerative parallel compound dual fluid heat engine-advanced cheng cycle (ACC) |
| DE19941685C1 (en) * | 1999-09-01 | 2000-07-20 | Siemens Ag | Method of increasing pressure of gas supplied from compressor in power station with booster pump |
| CN1258642C (en) * | 2001-01-02 | 2006-06-07 | 中国船舶重工集团公司第七研究院第七○三研究所 | Boosting system for steaming turbine of IC engine |
| CA2514073C (en) * | 2003-01-22 | 2016-07-05 | Vast Power Systems Inc. | Thermodynamic cycles using thermal diluent |
| CN101550890B (en) * | 2009-04-28 | 2011-10-05 | 上海海事大学 | Hydraulic transmission method and device using boat diesel engine afterheat |
| CN101598343B (en) * | 2009-07-01 | 2012-06-06 | 哈尔滨工程大学 | Adjustable pressurization system of serial-parallel boilers of big and small turbochargers |
| CN202040799U (en) * | 2011-03-16 | 2011-11-16 | 哈尔滨工程大学 | Bypass complementary combustion composite backheating turbo charging system of boiler |
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2011
- 2011-03-16 CN CN201110063448A patent/CN102183003B/en not_active Expired - Fee Related
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| CN102183003A (en) | 2011-09-14 |
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Granted publication date: 20120926 Termination date: 20180316 |