CN104358597A - Magnetic suspension power generation device for absorbing low-grade residual heat - Google Patents
Magnetic suspension power generation device for absorbing low-grade residual heat Download PDFInfo
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- CN104358597A CN104358597A CN201410638366.1A CN201410638366A CN104358597A CN 104358597 A CN104358597 A CN 104358597A CN 201410638366 A CN201410638366 A CN 201410638366A CN 104358597 A CN104358597 A CN 104358597A
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Abstract
The invention relates to a magnetic suspension power generation device for absorbing low-grade residual heat. The magnetic suspension power generation device consists of a stator, a rotor, a magnetic suspension bearing, an expansion wheel, a permanent magnet power generator and a sealing outer casing. The magnetic suspension power generation device is characterized in that the magnetic suspension bearing utilizes upward magnetic force generated by electric magnetic force to offset the self gravity of a stator shaft, the rotor is suspended in air, and the mechanical contact between the rotor and the stator is avoided. The magnetic suspension power generation device has the characteristics that the mechanical wear is small, lubrication tar is not needed, maintenance is avoided, the high-speed rotation is realized, the operation is simple and convenient, the power generation cost is low, the conversion efficiency is high, and the low-grade heat source effectively realizes the effect of changing wastes into valuables.
Description
Technical field
The present invention relates to field of generating equipment, being related specifically to a kind of magnetic suspending power generation device for absorbing low grade residual heat.
Background technique
Current China electrical power generators principle mainly high temperature and high pressure gas enters steam turbine, the thermal energy of steam is the mechanical energy that turbine rotor rotates, steam turbine rotarily drive coaxial on generator rotate, kinetic transformation is that electric energy realizes generating by electromagnetic induction principle by the electromagnetic equipment on generator.Steam turbine is a kind of is power with steam, and is the rotating machinery of mechanical work by the thermal energy of steam, is most widely used prime mover in modern thermal power plant.Conventional steam turbine is made up of rotating part and stationary part two aspects, and rotor comprises main shaft, impeller, moving vane and coupling etc., and stator comprises admission part, cylinder, dividing plate and static cascade, packing and bearing etc.Its middle (center) bearing is the important constituent element of steam turbine one, and they are used for bearing whole gravity of rotor and determine rotor tram in the cylinder.The existence of bearing makes its hear rate that rubs when running up high, easy to wear, and need lubricant oil to supply, need periodic maintenance, heat energy is lossy.Because high-grade thermal source during operating cost problem this kind of steam turbine is only applicable to, low grade residual heat field is then inapplicable.
And China has low-grade heat source market widely, such as a large amount of factory's exhaust chimneys, torch, papermaking and the high-temp liquid of pulp industry, the exhaust of gas turbine and the tail gas of diesel engine, the production low temperature waste gas etc. of chemical metallurgy industry.Low-grade industrial waste heat resource, owing to obtaining effective recycling, is generally directly discharged in air, will causes greenhouse effect increase from global warming like this, and cause the waste of thermal source, even befouling environment.
Summary of the invention
For solving the problem, the invention provides a kind of magnetic suspending power generation device for absorbing low grade residual heat, this device cannot can utilize domestic separately, and the wide low-grade exhaust heat thermal power transfer of market anomalies is electric energy, the pollution of used heat to environment can be reduced, the waste reducing the energy makes it to turn waste into wealth, and walks sustainable development path.
Technical solution of the present invention:
A kind of novel magnetic suspending power generation device being specifically designed to absorption low grade residual heat provided by the invention, this device is made up of stator, rotor, magnetic suspension bearing, expansion wheel, permanent magnet generator, can, magnetic suspending power generation device entirety becomes cylindrical body, two ends are respectively suction port and air outlet, magnetic suspension bearing totally two, be distributed in two ends of rotor, middle is expansion wheel and permanent magnet generator.Magnetic suspension bearing is the gravity utilizing the electromagnetic force magnetive attraction produced upwards to offset rotor shaft self, by rotor suspension in the air, make there is no Mechanical Contact between rotor and stator, compared with traditional ball bearing, sliding bearing and filmatic bearing, there is not Mechanical Contact in magnetic bearing, resistance is little, and rotor can run to very high rotating speed, has that mechanical wear is little, energy consumption is low, noise is little, the life-span is long, without the need to lubrication, without advantages such as oil pollutions.
This magnetic suspending power generation device electricity generating principle:
Low-grade exhaust heat carries out exchange heat via heat-exchange device;
After low boiling organic working medium absorbs heat, the gas of High Temperature High Pressure is become by liquid, being done work by expansion wheel at a high speed by suction port drives it to rotate, organic working medium is externally done work and is become the gas of low-temp low-pressure, saturated liquid is become again through condenser heat rejection, then by organic working medium pump isentropic Compression to high pressure and flow to evaporation parallel operation in carry out heat exchange, formed circulation;
The rotation of decompressor drives coaxial upper generator to generate electricity.
Because this magnetic suspending power generation device adopts magnetic suspension bearing apparatus, have mechanical wear little, do not need lubricant oil, non-maintaining, High Rotation Speed, the feature such as easy and simple to handle, the little transformation efficiency of cost of electricity-generating is high, effectively specific aim can utilize low-grade heat source.
The invention has the beneficial effects as follows, thermal power transfer, by magnetic suspending power generation device of the present invention, is electric energy, can reduces the pollution of used heat to environment by low-grade heat source, and the waste reducing the energy makes it to turn waste into wealth, and walks sustainable development path.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the basic structure sectional view of magnetic suspending power generation device of the present invention.
Fig. 2 is magnetic levitation bearing system structural representation.
Embodiment
A kind of novel magnetic suspending power generation device being specifically designed to absorption low grade residual heat provided by the invention, this device is by stator, rotor, magnetic suspension bearing, expansion wheel, permanent magnet generator, can forms, magnetic suspending power generation device entirety becomes cylindrical body, two ends are respectively suction port and air outlet, magnetic suspension bearing totally two, be distributed in two ends of rotor, middle is expansion wheel and permanent magnet generator, magnetic suspension bearing utilizes electromagnetic force by rotor suspension in the air, make there is no Mechanical Contact between rotor and stator, with traditional ball bearing, sliding bearing and filmatic bearing are compared, there is not Mechanical Contact in magnetic bearing, resistance is little, rotor can run to very high rotating speed, there is mechanical wear little, energy consumption is low, noise is little, life-span is long, without the need to lubrication, without advantages such as oil pollutions.
This magnetic suspending power generation device electricity generating principle:
Low-grade exhaust heat carries out exchange heat via heat-exchange device;
After low boiling organic working medium absorbs heat, the gas of High Temperature High Pressure is become by liquid, being done work by expansion wheel at a high speed by suction port drives it to rotate, organic working medium is externally done work and is become the gas of low-temp low-pressure, saturated liquid is become again through condenser heat rejection, then by organic working medium pump isentropic Compression to high pressure and flow to evaporation parallel operation in carry out heat exchange, formed circulation;
The rotation of decompressor drives coaxial upper generator to generate electricity.
Claims (2)
1. for absorbing a magnetic suspending power generation device for low grade residual heat, this device is made up of stator, rotor, magnetic suspension bearing, expansion wheel, permanent magnet generator, can, and each device connects successively by position shown in apparatus structure sectional view Fig. 1.
2. a kind of magnetic suspending power generation device for absorbing low grade residual heat according to claim 1, described magnetic suspension bearing is the gravity utilizing the electromagnetic force magnetive attraction produced upwards to offset rotor shaft self, by rotor suspension in the air, make there is no Mechanical Contact between rotor and stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638366.1A CN104358597A (en) | 2014-11-13 | 2014-11-13 | Magnetic suspension power generation device for absorbing low-grade residual heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638366.1A CN104358597A (en) | 2014-11-13 | 2014-11-13 | Magnetic suspension power generation device for absorbing low-grade residual heat |
Publications (1)
| Publication Number | Publication Date |
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| CN104358597A true CN104358597A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410638366.1A Pending CN104358597A (en) | 2014-11-13 | 2014-11-13 | Magnetic suspension power generation device for absorbing low-grade residual heat |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387172A (en) * | 2017-08-17 | 2017-11-24 | 上海大学 | Vertical two-stage permanent magnetism gas suspension ORC cogeneration machines |
| CN107829787A (en) * | 2017-12-04 | 2018-03-23 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of high-speed permanent magnetic body magnetic-suspension main-shaft air power drive device |
| CN110439633A (en) * | 2018-05-02 | 2019-11-12 | 深圳市重力悟空聚能技术开发有限公司 | A kind of integrated no axle envelope turbine generator device |
| CN110966096A (en) * | 2019-12-04 | 2020-04-07 | 扬州大学 | High-temperature magnetic suspension bearing cooling system for gas turbine |
| CN114688157A (en) * | 2020-12-25 | 2022-07-01 | 上海电气电站设备有限公司 | Liquid magnetic coupling bearing device for steam turbine and steam turbine |
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| CN103883372A (en) * | 2013-12-31 | 2014-06-25 | 湖南齐力达电气科技有限公司 | Symmetric dual-drive low-temperature waste heat power generation system |
| CN103953405A (en) * | 2014-05-05 | 2014-07-30 | 碧海舟（北京）石油化工设备有限公司 | Waste heat power generation system utilizing organic Rankine cycle |
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03265712A (en) * | 1990-03-16 | 1991-11-26 | Hitachi Ltd | Magnetic bearing device for body of rotation |
| JPH08218816A (en) * | 1995-02-16 | 1996-08-27 | Mitsubishi Heavy Ind Ltd | Low temperature power generation device |
| CN101242128A (en) * | 2008-03-13 | 2008-08-13 | 石才俊 | Permanent magnetic body self-induction magnetic suspending power generation device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387172A (en) * | 2017-08-17 | 2017-11-24 | 上海大学 | Vertical two-stage permanent magnetism gas suspension ORC cogeneration machines |
| CN107387172B (en) * | 2017-08-17 | 2023-12-12 | 上海大学 | Vertical double-stage permanent magnet gas suspension ORC waste heat generator |
| CN107829787A (en) * | 2017-12-04 | 2018-03-23 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of high-speed permanent magnetic body magnetic-suspension main-shaft air power drive device |
| CN110439633A (en) * | 2018-05-02 | 2019-11-12 | 深圳市重力悟空聚能技术开发有限公司 | A kind of integrated no axle envelope turbine generator device |
| CN110966096A (en) * | 2019-12-04 | 2020-04-07 | 扬州大学 | High-temperature magnetic suspension bearing cooling system for gas turbine |
| CN114688157A (en) * | 2020-12-25 | 2022-07-01 | 上海电气电站设备有限公司 | Liquid magnetic coupling bearing device for steam turbine and steam turbine |
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Application publication date: 20150218 |