CN102363821B - High speed blast furnace gas pressure turbine - Google Patents
High speed blast furnace gas pressure turbine Download PDFInfo
- Publication number
- CN102363821B CN102363821B CN201110341040.9A CN201110341040A CN102363821B CN 102363821 B CN102363821 B CN 102363821B CN 201110341040 A CN201110341040 A CN 201110341040A CN 102363821 B CN102363821 B CN 102363821B
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- Prior art keywords
- blast furnace
- gas pressure
- high speed
- pressure turbine
- furnace gas
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- 239000007789 gas Substances 0.000 claims description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 125000002837 carbocyclic group Chemical group 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a high speed blast furnace gas pressure turbine. The high speed blast furnace gas pressure turbine comprises: a pedestal; a housing which is connected to the pedestal and comprises an inlet end and an exhaust end; a rotor which comprises a main shaft, a wheel disc and one or two moving blades; a bearing assembly which comprises a first bearing and a second bearing which are arranged on the housing, wherein two end parts of the main shaft are respectively and rotatably arranged in the first bearing and the second bearing; one or two stator blades which are arranged on the inner surface of the housing and are arranged opposite to the one or two moving blades; and an air seal assembly which is arranged between one end of the main shaft close to the wheel disc and the housing and comprises a labyrinth seal member close to the wheel disc and a carbocyclic ring seal member far from the wheel disc. The high speed blast furnace gas pressure turbine of the invention has the advantages of simple equipment structure, high rotating speed and the like, so the high speed blast furnace gas pressure turbine which can be coupled with a blast furnace blower in rotating speed can be directly connected with the blast furnace blower, thereby the energy loss of a gearbox is saved, and the shafting of a whole set is simple and reasonable.
Description
Technical field
The present invention relates to Power Machinery Engineering technical field, relate in particular to a kind of high speed blast furnace gas pressure turbine.
Background technology
Blast furnace gas pressure turbine is the byproduct that utilizes blast-furnace smelting; be pressure energy and the heat energy that top gas has; through turbine expansion, do work the device of output mechanical energy; it is a kind of second energy retrieving arrangement that can play environmental protection and energy saving effect; can not only recovered energy, protection of the environment, can also reduce costs for iron and steel enterprise.
At present, conventionally the blast furnace blast Energy recovery machine set (BPRT) that adopts Gas Turbine that blast furnace gas pressure turbine and blast furnace blowing engine are designed as same system and motor coaxle to drive, changes the pressure energy of blast furnace gas and heat energy into after mechanical energy direct driving blast furnace blowing engine work.Yet due to the structural limitations of existing blast furnace gas pressure turbine, its working speed is generally 3000 revs/min (electrical network 50Hz) or 3600 revs/min (electrical network 60Hz).
For BPRT unit, due to the rotating speed of existing blast furnace gas pressure turbine lower than the working speed of blast furnace blowing engine (for example, 4800 revs/min), therefore cannot directly be connected with blast furnace blowing engine, must between existing blast furnace gas pressure turbine and blast furnace blowing engine, be connected wheel box, rotating speed is promoted to the higher rotation speed that meets blast furnace blowing engine requirement.For increasing a wheel box, BPRT unit can bring following shortcoming: one, BPRT unit unreasonable allocation, system form complexity, trouble spot is many, maintenance of the equipment workload is large; Two, shafting design difficulty is large, high to the manufacture of equipment, installation requirement; Three, through wheel box transmission, can lose mechanical energy, whole BPRT unit efficiency is reduced; Four, BPRT unit equipment is many, floor space is large, has increased BPRT unit cost.
Therefore, need a kind of high speed blast furnace gas pressure turbine, to address the above problem.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of high speed blast furnace gas pressure turbine, comprising: base; Shell, described shell is connected on described base, and described shell comprises inlet end and exhaust side; Rotor, described rotor comprises main shaft, is arranged on the wheel disc of described main shaft one end and the rotor blade that is arranged on the excircle of described wheel disc; Bearing assembly, described bearing assembly comprises clutch shaft bearing and the second bearing being arranged on described shell, two ends of described main shaft can be rotatably set in respectively in described clutch shaft bearing and in described the second bearing; Stator blades, described stator blades is arranged on the internal surface of described shell and relatively arranges with described rotor blade, to match with described rotor blade; And air seal component, described air seal component is arranged between one end and described shell of close described wheel disc of described main shaft, and described air seal component comprises near the labyrinth seal of described wheel disc with away from the carbon ring seal part of described wheel disc.
Preferably, described carbon ring seal part is multistage carbon ring seal part, and fills nitrogen between described multistage carbon ring seal part.
Preferably, described main shaft and described wheel disc are Split type structure, and described main shaft is connected by pull bar with described wheel disc.
Preferably, described rotor blade is one-level rotor blade structure, and described stator blades is one-level stator blades structure.
Preferably, described rotor blade is secondary rotor blade structure, and described stator blades is secondary stator blades structure.
Preferably, described rotor blade is fixed on described wheel disc by vertical tree-like blade root.
Preferably, described high speed blast furnace gas pressure turbine also comprises stator blades drive unit, for changing the angle of described stator blades.
Preferably, the ratio of the depth of blade of described stator blades and described rotor blade and the diameter of described main shaft is less than or equal to 0.2.
Preferably, the inlet end of described high speed blast furnace gas pressure turbine adopts axial admission structure, the downward air intake structure in footpath or upper air structure radially.
Preferably, the exhaust side of described high speed blast furnace gas pressure turbine adopts the downward exhaust structure in footpath or the footpath exhaust structure that makes progress.
High speed blast furnace gas pressure turbine of the present invention is due to the cantilever rotor structure that adopts biradial to support, and therefore has that device structure is simple, rotating speed advantages of higher, and then high speed blast furnace gas pressure turbine can be matched with the rotating speed of blast furnace blowing engine.Like this, high speed blast furnace gas pressure turbine can directly be connected with blast furnace blowing engine, has not only saved the energy dissipation of wheel box, and the axle that also makes whole unit is the advantages of simple that becomes.In addition, the cantilever rotor structure that adopts biradial to support, only need arrange air seal component at low pressure end, has saved the sealing of high-pressure side, has therefore reduced the probability that occurs accident, guarantees the reliability of equipment.Further, because high speed blast furnace gas pressure turbine can have higher rotating speed, the gas flow rate in leaf grating is higher, therefore can alleviate dust stratification problem.
In summary of the invention part, introduced the concept of a series of reduced forms, this will further describe in embodiment part.Content part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantages and features of the invention in detail.
Accompanying drawing explanation
Following accompanying drawing of the present invention is used for understanding the present invention in this as a part of the present invention.Shown in the drawings of embodiments of the invention and description thereof, be used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is according to the sectional view of the high speed blast furnace gas pressure turbine of one embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the rotor of one embodiment of the present invention;
Fig. 3 is according to the enlarged view of the air seal component of one embodiment of the present invention;
Fig. 4 is the sectional view of the high speed blast furnace gas pressure turbine of another embodiment according to the present invention;
Fig. 5 A is according to the schematic diagram of the high speed blast furnace gas pressure turbine of one embodiment of the present invention;
Fig. 5 B is according to the schematic diagram of the high speed blast furnace gas pressure turbine of one embodiment of the present invention; And
Fig. 5 C is according to the schematic diagram of the high speed blast furnace gas pressure turbine of one embodiment of the present invention.
Embodiment
In the following description, a large amount of concrete details have been provided to more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can be implemented without one or more these details.In other example, for fear of obscuring with the present invention, for technical characterictics more well known in the art, be not described.
In order thoroughly to understand the present invention, will detailed structure be proposed in following description.Obviously, execution of the present invention is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, yet except these are described in detail, the present invention can also have other embodiments.
Fig. 1 is according to the sectional view of the high speed blast furnace gas pressure turbine of one embodiment of the present invention, and Fig. 2 is according to the schematic diagram of the rotor of one embodiment of the present invention, and Fig. 3 is according to the enlarged view of the air seal component of one embodiment of the present invention.In Fig. 1-3, identical parts are used identical Reference numeral.Below in conjunction with Fig. 1-3 pair high speed blast furnace gas pressure turbine according to the present invention, be described in detail.
As shown in Figure 1, high speed blast furnace gas pressure turbine 100 comprises base 110, shell 120, rotor 130, bearing assembly, stator blades 150 and air seal component 160.
As shown in Figure 2, rotor 130 comprises main shaft 131, wheel disc 132 and rotor blade 133.Wheel disc 132 is arranged on one end of main shaft 131.Preferably, main shaft 131 is Split type structure with wheel disc 132, and main shaft 131 is connected by pull bar 134 with wheel disc 132.Main shaft 131 and wheel disc 132 are set to Split type structure can be so that the manufacture of each parts, and can guarantee both intensity.Rotor blade 133 is arranged on the excircle of wheel disc 132.Be understandable that, rotor blade 133 can adopt the conventional rotor blade structure of prior art, therefore no longer describes in detail.In order to make rotor have good margin of strength and to be applicable to Working environment at a high speed, preferably, rotor blade 133 is fixed on wheel disc 132 by vertical tree-like blade root.
See figures.1.and.2, bearing assembly comprises clutch shaft bearing 141 and the second bearing 142.Clutch shaft bearing 141 and the second bearing 142 are arranged on shell 120, and particularly, clutch shaft bearing 141 and the second bearing 142 can directly be arranged on shell 120, also can be arranged on shell 120 by strut member.Two ends of main shaft 131 can be rotatably set in respectively in clutch shaft bearing 141 and in the second bearing 142, so that main shaft 131 is carried out to biradial support.
Preferably, the ratio of the depth of blade of stator blades 150 and rotor blade 133 and the diameter of main shaft 131 is less than or equal to 0.2.Rotor blade of the present invention and stator blades adopt short blade design, can make the natural frequency of blade far above the excited frequency under working speed, avoid resonance to cause leaf destruction.In addition, can also reduce the centrifugal tensile stress of rotor blade under high speed rotating, improve the intensity of blade.
High speed blast furnace gas pressure turbine 100 of the present invention is due to the cantilever rotor structure that adopts biradial to support, therefore have that device structure is simple, rotating speed advantages of higher, and then high speed blast furnace gas pressure turbine 100 can be matched with the rotating speed of blast furnace blowing engine.Like this, high speed blast furnace gas pressure turbine 100 can directly be connected with blast furnace blowing engine, has not only saved the energy dissipation of wheel box, and the axle that also makes whole unit is the advantages of simple that becomes.In addition, the cantilever rotor structure that adopts biradial to support, only need arrange air seal component at low pressure end, has saved the sealing of high-pressure side, has therefore reduced the probability that occurs accident, guarantees the reliability of equipment.Further, because high speed blast furnace gas pressure turbine 100 can have higher rotating speed, the gas flow rate in leaf grating is higher, therefore can alleviate dust stratification problem.
According to one embodiment of the present invention, as depicted in figs. 1 and 2, rotor blade 133 is one-level rotor blade structure, and stator blades 150 is one-level stator blades structure.Adopt single step arrangement not only to make high speed blast furnace gas pressure turbine 100 there is higher rotating speed, to be suitable for and the high speed situation of blast furnace blowing engine with rotating speed, but also there is higher heat insulating ability.
Another embodiment according to the present invention, as shown in Figure 4, rotor blade 133 is secondary rotor blade structure (comprising rotor blade 133A and 133B), and stator blades 150 is secondary stator blades structure (comprising stator blades 150A and 150B).Adopt two-stage structure that high speed blast furnace gas pressure turbine 100 both can be operated in and the high-speed working condition of blast furnace blowing engine with rotating speed, can be operated in again the operating mode with generator or motor same rotational speed, also make high speed blast furnace gas pressure turbine 100 there is higher heat insulating ability.
Fig. 5 A is according to the schematic diagram of the high speed blast furnace gas pressure turbine of one embodiment of the present invention, Fig. 5 B is according to the schematic diagram of the high speed blast furnace gas pressure turbine of one embodiment of the present invention, and Fig. 5 C is according to the schematic diagram of the high speed blast furnace gas pressure turbine of one embodiment of the present invention.
The inlet end of high speed blast furnace gas pressure turbine 500 can adopt axial admission structure (as shown in Figure 5A), the downward air intake structure in footpath (as shown in Figure 5 B) or upper air structure (as shown in Figure 5 C) radially.
The exhaust side of high speed blast furnace gas pressure turbine 500 can adopt the downward exhaust structure in footpath (as shown in Figure 5A) or the footpath exhaust structure (as shown in Figure 5 B) that makes progress.
Air inlet and exhaust mode that high speed blast furnace gas pressure turbine 500 adopts are changeable, therefore can carry out individual layer layout or rebuilding according to on-the-spot situation, so that pipeline orientation and structural arrangement are all very flexible.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the object for giving an example and illustrating just, but not is intended to the present invention to be limited in described scope of embodiments.In addition it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, according to instruction of the present invention, can also make more kinds of variants and modifications, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by the appended claims and equivalent scope thereof.
Claims (6)
1. a high speed blast furnace gas pressure turbine, is characterized in that, comprising:
Base;
Shell, described shell is connected on described base, and described shell comprises inlet end and exhaust side;
Rotor, described rotor comprises main shaft, is arranged on the wheel disc of described main shaft one end and the rotor blade that is arranged on the excircle of described wheel disc, wherein said main shaft and described wheel disc are Split type structure, described main shaft is connected by pull bar with described wheel disc, and described rotor blade is fixed on described wheel disc by vertical tree-like blade root;
Bearing assembly, described bearing assembly comprises clutch shaft bearing and the second bearing being arranged on described shell, two ends of described main shaft can be rotatably set in respectively in described clutch shaft bearing and in described the second bearing;
Stator blades, described stator blades is arranged on the internal surface of described shell and relatively arranges with described rotor blade, and to match with described rotor blade, the ratio of the depth of blade of wherein said stator blades and described rotor blade and the diameter of described main shaft is less than or equal to 0.2; With
Air seal component, described air seal component is arranged between one end and described shell of close described wheel disc of described main shaft, described air seal component comprises near the labyrinth seal of described wheel disc with away from the carbon ring seal part of described wheel disc, described carbon ring seal part is multistage carbon ring seal part, and fills nitrogen between described multistage carbon ring seal part.
2. according to high speed blast furnace gas pressure turbine claimed in claim 1, it is characterized in that, described rotor blade is one-level rotor blade structure, and described stator blades is one-level stator blades structure.
3. according to high speed blast furnace gas pressure turbine claimed in claim 1, it is characterized in that, described rotor blade is secondary rotor blade structure, and described stator blades is secondary stator blades structure.
4. according to high speed blast furnace gas pressure turbine claimed in claim 1, it is characterized in that, described high speed blast furnace gas pressure turbine also comprises stator blades drive unit, for changing the angle of described stator blades.
5. according to high speed blast furnace gas pressure turbine claimed in claim 1, it is characterized in that, the inlet end of described high speed blast furnace gas pressure turbine adopts axial admission structure, the downward air intake structure in footpath or upper air structure radially.
6. according to high speed blast furnace gas pressure turbine claimed in claim 1, it is characterized in that, the exhaust side of described high speed blast furnace gas pressure turbine adopts the downward exhaust structure in footpath or the footpath exhaust structure that makes progress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341040.9A CN102363821B (en) | 2011-11-02 | 2011-11-02 | High speed blast furnace gas pressure turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341040.9A CN102363821B (en) | 2011-11-02 | 2011-11-02 | High speed blast furnace gas pressure turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102363821A CN102363821A (en) | 2012-02-29 |
| CN102363821B true CN102363821B (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110341040.9A Expired - Fee Related CN102363821B (en) | 2011-11-02 | 2011-11-02 | High speed blast furnace gas pressure turbine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612760B (en) * | 2013-11-01 | 2017-02-01 | 中国石化工程建设有限公司 | Energy recycling tail gas turbine |
| CN107084312A (en) * | 2017-04-05 | 2017-08-22 | 哈尔滨汽轮机厂有限责任公司 | A kind of Blast Furnace Gas Turbine nitrogen-sealed system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144714Y (en) * | 2008-01-09 | 2008-11-05 | 成都发动机（集团）有限公司 | Disc draft type capacity-adjustable TRT |
| CN201232064Y (en) * | 2008-07-30 | 2009-05-06 | 陕西博尔透平机械有限公司 | Energy recovery apparatus for mono-layer layout stove blower set |
| CN201714430U (en) * | 2010-07-09 | 2011-01-19 | 兰州长城机械工程有限公司 | Rotor blade sealing device for flue gas turbine |
| CN201778840U (en) * | 2010-05-19 | 2011-03-30 | 德阳东方数控科技有限公司 | Gas-tight structure of turbine spindle |
| CN201835877U (en) * | 2009-12-08 | 2011-05-18 | 成都发动机（集团）有限公司 | Coal gas excessive pressure turbine for blast furnace with radial air inlet and axial exhaust |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5464210A (en) * | 1977-10-31 | 1979-05-23 | Mitsubishi Heavy Ind Ltd | High pressure gas energy recovery apparatus |
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2011
- 2011-11-02 CN CN201110341040.9A patent/CN102363821B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144714Y (en) * | 2008-01-09 | 2008-11-05 | 成都发动机（集团）有限公司 | Disc draft type capacity-adjustable TRT |
| CN201232064Y (en) * | 2008-07-30 | 2009-05-06 | 陕西博尔透平机械有限公司 | Energy recovery apparatus for mono-layer layout stove blower set |
| CN201835877U (en) * | 2009-12-08 | 2011-05-18 | 成都发动机（集团）有限公司 | Coal gas excessive pressure turbine for blast furnace with radial air inlet and axial exhaust |
| CN201778840U (en) * | 2010-05-19 | 2011-03-30 | 德阳东方数控科技有限公司 | Gas-tight structure of turbine spindle |
| CN201714430U (en) * | 2010-07-09 | 2011-01-19 | 兰州长城机械工程有限公司 | Rotor blade sealing device for flue gas turbine |
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| CN102363821A (en) | 2012-02-29 |
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