CN103629656A - Air supplying system and method of experiment table of small supercharged boiler - Google Patents
Air supplying system and method of experiment table of small supercharged boiler Download PDFInfo
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- CN103629656A CN103629656A CN201310689887.5A CN201310689887A CN103629656A CN 103629656 A CN103629656 A CN 103629656A CN 201310689887 A CN201310689887 A CN 201310689887A CN 103629656 A CN103629656 A CN 103629656A
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- air
- steam generator
- supercharged steam
- roots blower
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Abstract
The invention relates to an air supplying system and method of an experiment table of a small supercharged boiler. The air supplying system comprises a supercharger and the supercharged boiler, wherein an air outlet of the supercharger is connected with an air inlet of the supercharged boiler by a pipeline. The air supplying system is characterized by comprising a flue-gas turbine and a roots blower, wherein a flue-gas outlet of the supercharged boiler is connected with the flue-gas turbine by a pipeline; the flue-gas turbine is coaxial to the supercharger; an air outlet of the roots blower is connected with the air inlet of the supercharged boiler by a pipeline. The air supplying system has the advantages that the roots blower provides high-pressure air for the supercharged boiler to start the supercharged boiler; the air is compressed into supercharged air by the supercharger, the supercharged air enters the supercharged boiler, high-temperature flue gas exhausted by the supercharged boiler pushes the flue-gas turbine to do work, the flue-gas turbine converts heat of the high-temperature flue gas into kinetic energy and then drive the supercharger.
Description
Technical field
The present invention relates to a kind of small-sized supercharged steam generator experimental bench air feed system and air supply method thereof.
Background technology
In supercharged steam generator, relying on booster is the pressurized air of 0.2～0.3MPa for burner hearth provides pressure, pressurized combustion makes supercharged steam generator have the furnace load larger than normal-pressure boiler, strengthened burning and heat exchange, but the high-temperature flue gas that pressurized air and fuel produce at hearth combustion is not utilized effectively.Smoke gas turbine power cannot meet in the situation that booster power requirement generally occurs in underload, now needing to consume superheated steam drives auxiliary turbine to carry out power to supply, steam turbine becomes the main power source that drives turbocharging unit, and when underload, auxiliary turbine steam consumption quantity may account for the total steam production of supercharged steam generator more than 10%.Turbocharging unit and additional turbine shaft adopt the joint that is rigidly connected mostly, sometimes utilize decelerator to improve turbine speed.For small-sized supercharged steam generator, steam production is little, occupies little space, and the complexity that auxiliary turbine and supporting decelerator and motor have increased system is installed, and relevant steam pipework has also increased the difficulty that space is arranged.
Summary of the invention
The object of the invention is the deficiency of applying for turbocharging unit on small-sized supercharged steam generator experimental bench, a kind of saving space is provided, response rapidly, is convenient to air feed system and the air supply method controlled.
The present invention is based on same inventive concept, there are two independently technical schemes:
1, a kind of small-sized supercharged steam generator experimental bench air feed system, comprise booster, supercharged steam generator, booster air outlet connects supercharged steam generator air inlet by the road, it is characterized in that: also comprise smoke gas turbine, roots blower, supercharged steam generator exhanst gas outlet connects smoke gas turbine by the road, smoke gas turbine is coaxial with booster, and roots blower air outlet connects supercharged steam generator air inlet by the road.
Also comprise smoke-exhaust pipeline, between booster and aforementioned smoke-exhaust pipeline, be connected to pressurized air bypass line, between roots blower and aforementioned smoke-exhaust pipeline, be connected to roots blower bypass line.
On pipeline on pipeline between supercharged steam generator exhanst gas outlet and smoke gas turbine, between roots blower air outlet and supercharged steam generator air inlet, be equipped with control valve.
On pressurized air bypass line, be equipped with control valve on roots blower bypass line.
2, an air supply method that utilizes above-mentioned small-sized supercharged steam generator experimental bench air feed system, is characterized in that: roots blower, for supercharged steam generator provides pressure-air, starts supercharged steam generator; Air is pressurized air through compressed, and pressurized air is through entering supercharged steam generator, and the flue gas that supercharged steam generator is discharged promotes smoke gas turbine acting, and smoke gas turbine drives booster then by the conversion of heat into kinetic energy of high-temperature flue gas.
When the pressure-air of booster output can not meet supercharged steam generator required air quantity, start roots blower simultaneously, roots blower is sent pressurized air into supercharged steam generator, carries out pressurized air and supplies.
When booster fault, start roots blower, by roots blower separately for supercharged steam generator provides pressurized air.
The beneficial effect that the present invention has:
The present invention adopts booster and two air-sources of roots blower to carry out air feed, booster and roots blower can provide pressurized air, the in the situation that of equivalent fuel amount, expanded the flow of pressurized air, the air feed while simultaneously having guaranteed starting state and booster fault; Pressurized air of the present invention flue gas after for burning provides cigarette speed faster and higher flue-gas temperature, utilize high-temperature flue gas to drive smoke gas turbine acting, drive booster to compress air, effectively utilized heat energy and the kinetic energy of flue gas, saved the energy that whole air feed system outside provides.Compare with traditional turbocharging unit, in the small-sized supercharged steam generator experimental bench of the present invention air feed system the electric governing response of roots blower rapider, steam pipework greatly reduces, and is convenient to the I&M in the confined space.
Accompanying drawing explanation
Fig. 1 is the small-sized supercharged steam generator experimental bench of the present invention air feed system schematic diagram.
The specific embodiment
As shown in Figure 1, booster 2 air outlets connect the air inlet of supercharged steam generator 1 by the road, and the exhanst gas outlet of supercharged steam generator 1 connects smoke gas turbine 3 by the road, and smoke gas turbine 3 is coaxially affixed with booster 2, and the air outlet of roots blower 4 connects the air inlet of supercharged steam generator 1 by the road.
Pipeline between supercharged steam generator 1 exhanst gas outlet and smoke gas turbine 3 is provided with control valve 10, and for regulating and controlling supercharged steam generator furnace pressure, the pipeline between roots blower 4 air outlets and supercharged steam generator 1 air inlet is provided with control valve.
Between booster 2 and smoke-exhaust pipeline 5, be connected to pressurized air bypass line 6, pressurized air bypass line 6 is provided with control valve 7; Between roots blower and smoke-exhaust pipeline 5, be connected to roots blower bypass line 8, roots blower bypass line 8 is provided with control valve 9.
Air is through booster 2 boil down to pressurized airs, and pressurized air enters supercharged steam generator 1 through control valve 12, promote after smoke gas turbine 3 actings with the flue gas generating after fuel mix burning, through smoke-exhaust pipeline 5 discharged to atmosphere.Smoke gas turbine 3 is the conversion of heat into kinetic energy of high-temperature flue gas, drives 2 pairs of air of booster to compress, and effectively utilized the energy in flue gas, and air mass flow is decided by do work in smoke gas turbine 3 power of driving booster 2 of high-temperature flue gas.
When the pressure-air of booster 2 outputs can not meet supercharged steam generator 1 air capacity, start roots blower 4, roots blower 4 is sent pressurized air into supercharged steam generator, carries out pressurized air and supplies.When start operating performance or booster fault, roots blower 4 can also serve as air-source and carry out air feed.Roots blower 4 can be single-stage Roots or multi-stage roots blower fan, according to actual air, need to arrange, the air mass flow of process roots blower 4 can regulate by roots blower 4 frequency conversions.
Claims (7)
1. a small-sized supercharged steam generator experimental bench air feed system, comprise booster, supercharged steam generator, booster air outlet connects supercharged steam generator air inlet by the road, be characterised in that: also comprise smoke gas turbine, roots blower, supercharged steam generator exhanst gas outlet connects smoke gas turbine by the road, smoke gas turbine is coaxial with booster, and roots blower air outlet connects supercharged steam generator air inlet by the road.
2. small-sized supercharged steam generator experimental bench air feed system according to claim 1, it is characterized in that: also comprise smoke-exhaust pipeline, between booster and aforementioned smoke-exhaust pipeline, be connected to pressurized air bypass line, between roots blower and aforementioned smoke-exhaust pipeline, be connected to roots blower bypass line.
3. small-sized supercharged steam generator experimental bench air feed system according to claim 2, is characterized in that: on the pipeline on the pipeline between supercharged steam generator exhanst gas outlet and smoke gas turbine, between roots blower air outlet and supercharged steam generator air inlet, be equipped with control valve.
4. small-sized supercharged steam generator experimental bench air feed system according to claim 3, is characterized in that: on pressurized air bypass line, be equipped with control valve on roots blower bypass line.
5. an air supply method that utilizes small-sized supercharged steam generator experimental bench air feed system described in claim 1, is characterized in that: roots blower, for supercharged steam generator provides pressure-air, starts supercharged steam generator; Air is pressurized air through compressed, and pressurized air is through entering supercharged steam generator, and the flue gas that supercharged steam generator is discharged promotes smoke gas turbine acting, and smoke gas turbine drives booster then by the conversion of heat into kinetic energy of high-temperature flue gas.
6. air supply method according to claim 5, is characterized in that: when the pressure-air of booster output can not meet supercharged steam generator required air quantity, start roots blower, roots blower is sent pressurized air into supercharged steam generator, carries out pressurized air and supplies simultaneously.
7. air supply method according to claim 6, is characterized in that: when booster fault, start roots blower, by roots blower separately for supercharged steam generator provides pressurized air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689887.5A CN103629656A (en) | 2013-12-17 | 2013-12-17 | Air supplying system and method of experiment table of small supercharged boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310689887.5A CN103629656A (en) | 2013-12-17 | 2013-12-17 | Air supplying system and method of experiment table of small supercharged boiler |
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| CN103629656A true CN103629656A (en) | 2014-03-12 |
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| CN201310689887.5A Pending CN103629656A (en) | 2013-12-17 | 2013-12-17 | Air supplying system and method of experiment table of small supercharged boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424392A (en) * | 2015-12-11 | 2016-03-23 | 浙江工业大学 | Supercharged boiler test stand |
| CN108716782A (en) * | 2018-05-28 | 2018-10-30 | 长沙理工大学 | A kind of co-generation unit of coupled biological matter and geothermal energy |
| CN110426416A (en) * | 2019-06-21 | 2019-11-08 | 珠海格力电器股份有限公司 | A kind of air detection system and detection method |
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| DE3665215D1 (en) * | 1985-10-12 | 1989-09-28 | Steinmueller Gmbh L & C | Pressurized combustor for a steam generator |
| RU2056584C1 (en) * | 1994-11-17 | 1996-03-20 | Константин Аркадьевич Якимович | Supercharged boiler and steam production process in it |
| CN101413407A (en) * | 2008-11-28 | 2009-04-22 | 北京理工大学 | Supercritical organic Rankine double-circulation waste heat recovery system |
| CN101598343A (en) * | 2009-07-01 | 2009-12-09 | 哈尔滨工程大学 | Adjustable pressurization system of serial-parallel boilers of big and small turbochargers |
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2013
- 2013-12-17 CN CN201310689887.5A patent/CN103629656A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| DE3665215D1 (en) * | 1985-10-12 | 1989-09-28 | Steinmueller Gmbh L & C | Pressurized combustor for a steam generator |
| RU2056584C1 (en) * | 1994-11-17 | 1996-03-20 | Константин Аркадьевич Якимович | Supercharged boiler and steam production process in it |
| CN101413407A (en) * | 2008-11-28 | 2009-04-22 | 北京理工大学 | Supercritical organic Rankine double-circulation waste heat recovery system |
| CN101598343A (en) * | 2009-07-01 | 2009-12-09 | 哈尔滨工程大学 | Adjustable pressurization system of serial-parallel boilers of big and small turbochargers |
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| 张强: "增压锅炉热力计算方法及其过热器数值模拟研究", 《哈尔滨工程大学工学硕士学位论文》, 26 April 2013 (2013-04-26), pages 8 - 12 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424392A (en) * | 2015-12-11 | 2016-03-23 | 浙江工业大学 | Supercharged boiler test stand |
| CN105424392B (en) * | 2015-12-11 | 2017-12-12 | 浙江工业大学 | A kind of supercharged steam generator testing stand |
| CN108716782A (en) * | 2018-05-28 | 2018-10-30 | 长沙理工大学 | A kind of co-generation unit of coupled biological matter and geothermal energy |
| CN110426416A (en) * | 2019-06-21 | 2019-11-08 | 珠海格力电器股份有限公司 | A kind of air detection system and detection method |
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Application publication date: 20140312 |