CN106523056A - Organic working medium rankine cycle system - Google Patents
Organic working medium rankine cycle system Download PDFInfo
- Publication number
- CN106523056A CN106523056A CN201610983134.9A CN201610983134A CN106523056A CN 106523056 A CN106523056 A CN 106523056A CN 201610983134 A CN201610983134 A CN 201610983134A CN 106523056 A CN106523056 A CN 106523056A
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- Prior art keywords
- working medium
- medium pump
- pump
- generator
- shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses an organic working medium rankine cycle system. The organic working medium rankine cycle system comprises a working medium pump, an evaporator, a radial-inward-flow turbine and a condenser all of which are connected into a loop. An impeller shaft of the radial-inward-flow turbine and a pump shaft of the working medium pump are connected in a transmission manner, and the pump shaft of the working medium pump and a rotating shaft of a generator-motor device are connected in a transmission manner. A controller is used for controlling switching of a motor state and a generator state of the generator-motor device. In an initial state, the generator-motor device is in the motor state to drive the working medium pump, and when the working medium pump reaches a preset rotating speed, the controller switches the generator-motor device into the generator state. The working medium pump in the organic working medium rankine cycle system needs to consume electric energy only at the initial state, and after the rotating speed of the working medium pump reaches a preset value, the working medium pump is driven to run through the kinetic energy of the radial-inward-flow turbine, it is not required to convert the kinetic energy of the radial-inward-flow turbine into the electric energy by the generator or then the working medium pump is driven to run, the loss caused during energy conversion is avoided, the consumption caused when waste heat is recycled can be effectively reduced, and the system efficiency is improved.
Description
Technical field
The present invention relates to Rankine cycle technical field, more particularly to a kind of organic rankie cycle system.
Background technology
With economic continuous development, increasing to the demand of the energy, the traditional energy such as oil, coal disappears in a large number
The destruction of consumption and ecological environment is put forward higher requirement to existing energy resource structure, and energy-saving and emission-reduction sustainable development is
Jing becomes industry new standard, can produce a large amount of in the production process of the industries such as iron and steel, chemical industry, oil, building materials, light industry and food
Waste heat, if these residual heat resources are directly discharged in surrounding, are not only the waste to the energy, and temperature can be caused
Room effects ecological environment, these residual heat resources is recycled, not only can be increased economic efficiency, additionally it is possible to mitigated to ring
The impact in border, however, as the temperature of industrial exhaust heat is typically than relatively low, conventional utilization ratio is relatively low, and organic working medium low boiling point,
Can just gasify in lower temperature and do work for Steam Actuation radial-inward-flow turbine.
Organic Rankine bottoming cycle (Organic Rankine Cycle, abbreviation ORC) can with low temperature heat energy in effectively utilizes, and
With simple system, reliability be high and unit capacity can with flexible configuration the characteristics of, obtain extensively in heat recovery field
General application.In prior art, Fig. 1 is referred to, Fig. 1 is the structural representation of organic rankie cycle system of the prior art
Figure, organic rankie cycle system include working medium pump 1, vaporizer 2, radial-inward-flow turbine 3 and the condensation for being in turn connected into loop
Device 4, wherein, is connected with electromotor 5 in the impeller axle of radial-inward-flow turbine 3, working medium pump 1 is with outside Motor drive, during operation, external electrical
Machine drive working medium pump 1 run, working medium pump 1 delivers to organic working medium pump 1 in vaporizer 2, organic working medium in vaporizer 2 with waste heat
Heat exchange is carried out, gasification is the organic steam with certain pressure and temperature, and organic steam is into radial-inward-flow turbine 3 and promotes impeller
Axle rotates, and so as to drive electromotor 5 to generate electricity, in this course, as working medium pump 1 consumes energy higher, is driven with external motor,
While recovery waste heat, need to consume electric energy, drive equivalent to residual heat resources are converted into after electric energy again, as energy turns
Efficiency between change, reduces to the utilization rate of energy, system it is less efficient.
Therefore, how a kind of organic rankie cycle system is provided, its consumption in waste heat recovery is reduced, system is improved
System efficiency, becomes those skilled in the art's important technological problems urgently to be resolved hurrily.
The content of the invention
In view of this, the invention provides a kind of organic rankie cycle system, to reduce which in waste heat recovery
When consumption, improve system effectiveness purpose.
For achieving the above object, the present invention provides following technical scheme：
A kind of organic rankie cycle system, including be in turn connected into the working medium pump in loop, vaporizer, radial-inward-flow turbine with
And condenser, it is characterised in that also including generator-motor device and for controlling the generator-motor device
The controller switched between electric motor state and Generator Status, the pump shaft of the impeller axle of the radial-inward-flow turbine and the working medium pump
Between and the working medium pump be connected and the rotating shaft of the generator-motor device between；
Under original state, the generator-motor device is electric motor state to drive the working medium pump, when the work
When matter pump reaches preset rotation speed, the generator-motor device is switched to Generator Status by the controller.
Preferably, it is coaxially connected by power transmission shaft between the pump shaft of the impeller axle of the radial-inward-flow turbine and the working medium pump.
Preferably, output shaft, input shaft is provided between the pump shaft of the impeller axle of the radial-inward-flow turbine and the working medium pump
And freewheel clutch, one end of the output shaft is connected with the impeller axle of the radial-inward-flow turbine, the other end with it is described surmount from
The driving link connection of clutch, one end of the input shaft is connected with the pump shaft of the working medium pump, the other end and the overdrive clutch
The driven member connection of device.
Preferably, gear-box is provided between the rotating shaft of the pump shaft of the working medium pump and the generator-motor device,
Pump shaft of the rotating shaft of the generator-motor device by the gear-box with the working medium pump is connected.
Preferably, between the pump shaft of the gear-box and the working medium pump and the gear-box and the electromotor-electricity
Shaft coupling is provided between the rotating shaft of motivation device.
Preferably, the working medium pump is centrifugal pump.
From above-mentioned technical proposal as can be seen that the present invention provide organic rankie cycle system, including working medium pump, steaming
Send out device, radial-inward-flow turbine, condenser, generator-motor device and controller, wherein, working medium pump, vaporizer, radial-inward-flow turbine
And condenser is in turn connected into loop, controller is used for controlling generator-motor device in electric motor state and electromotor
Between state switch, between the impeller axle of radial-inward-flow turbine and the pump shaft of working medium pump and working medium pump with generator-motor device
Rotating shaft between be connected；Under original state, generator-motor device is electric motor state to drive working medium pump, when
When working medium pump reaches preset rotation speed, generator-motor device is switched to Generator Status by controller；
In the initial operation stage of system, controller control generator-motor device enters electric motor state, to drive
It is the organic steam with certain pressure and temperature that organic working medium is pumped in vaporizer gasification by working medium pump, and organic steam is entered
Radial-inward-flow turbine simultaneously promotes impeller axle to rotate, above-mentioned state continue to the rotating speed of working medium pump reach preset rotation speed when, controller control
Generator-motor device enters Generator Status, generator-motor device not driving working medium pump operation, at this moment due to
Waste heat continuously carries out heat exchange with organic working medium, and radial-inward-flow turbine continues rotation under the promotion of organic steam, and drives
So that organic working medium is persistently delivered in vaporizer, at the same time working medium pump continues to run with, and working medium pump drives generator-motor
Device generates electricity；As can be seen here, the working medium pump in above-mentioned organic rankie cycle system only need to be in the initial rank of system operation
Section consumes certain electric energy, after its rotating speed reaches preset value, directly drives operating by the kinetic energy of radial-inward-flow turbine, it is no longer necessary to
Electromotor is converted into the kinetic energy of radial-inward-flow turbine after electric energy and drives which to operate again, thus avoids the problem of energy conversion efficiency,
The consumption in waste heat recovery can be effectively reduced, system effectiveness is improved.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of organic rankie cycle system of the prior art；
Fig. 2 is the structural representation of organic rankie cycle system provided in an embodiment of the present invention.
Specific embodiment
The invention provides a kind of organic rankie cycle system, to reduce its consumption in waste heat recovery,
Improve the purpose of system effectiveness.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 2 is referred to, Fig. 2 is the structural representation of organic rankie cycle system provided in an embodiment of the present invention.
A kind of organic rankie cycle system that the present invention is provided, including working medium pump 1, vaporizer 2, radial-inward-flow turbine 3, cold
Condenser 4, generator-motor device 6 and controller 7.
Wherein, working medium pump 1, vaporizer 2, radial-inward-flow turbine 3 and condenser 4 are in turn connected into loop, and controller 7 is used for controlling
Generator-motor device 6 processed switches between 5 state of electric motor state and electromotor, the impeller axle of radial-inward-flow turbine 3 and working medium pump
Between 1 pump shaft and working medium pump 1 is connected and the rotating shaft of generator-motor device 6 between；Under original state,
Generator-motor device 6 is electric motor state to drive working medium pump 1, and when working medium pump 1 reaches preset rotation speed, controller 7 will
Generator-motor device 6 switches to 5 state of electromotor.
Compared with prior art, the organic rankie cycle system that the present invention is provided, in the initial operation stage of system,
The control generator-motor of controller 7 device 6 enters electric motor state, to drive working medium pump 1 that organic working medium pump 1 is delivered to steaming
Gasification in sending out device 2 is the organic steam with certain pressure and temperature, and organic steam is into radial-inward-flow turbine 3 and promotes impeller axle to revolve
Turn, above-mentioned state continue to the rotating speed of working medium pump 1 reach preset rotation speed when, the control of controller 7 generator-motor device 6 enters
Enter 5 state of electromotor, generator-motor device 6 not driving working medium pump 1 to run, at this moment due to waste heat continuously with
Organic working medium carries out heat exchange, and radial-inward-flow turbine 3 continues rotation under the promotion of organic steam, and drives working medium pump 1 to continue to run with
To be persistently delivered to organic working medium in vaporizer 2, at the same time, working medium pump 1 drives generator-motor device 6 to generate electricity；By
This is visible, and the working medium pump 1 in above-mentioned organic rankie cycle system only need to consume certain in the starting stage of system operation
Electric energy, after its rotating speed reaches preset value, directly by radial-inward-flow turbine 3 kinetic energy drive operating, it is no longer necessary to electromotor will
The kinetic energy of radial-inward-flow turbine 3 drives which to operate after being converted into electric energy again, thus avoids the problem of energy conversion efficiency, can be effective
The consumption in waste heat recovery is reduced, system effectiveness is improved.
Can be accomplished in several ways between radial-inward-flow turbine 3 and working medium pump 1 and be connected, in an embodiment of the present invention
In, it is coaxially connected by power transmission shaft 8 between the pump shaft of the impeller axle of radial-inward-flow turbine 3 and working medium pump 1, so, generator-motor
Device 6 when driving working medium pump 1 to run, also can the impeller axle of the dynamic radial-inward-flow turbine 3 of Timing Belt rotate, contribute to 3 leaf of radial-inward-flow turbine
The rapid raising of wheel rotating speed.
However, the pump shaft by power transmission shaft 8 by the impeller axle of radial-inward-flow turbine 3 with working medium pump 1 is connected, although in structure
Simply, but be easily caused the impeller axle of radial-inward-flow turbine 3 and the pump shaft of working medium pump 1 is interfered, especially in initial launch rank
Section, generator-motor device 6 will also drive the impeller axle of radial-inward-flow turbine 3 while the pump shaft for driving working medium pump 1 is rotated
Rotate, energy consumption can be caused to increase, therefore, for further reducing energy consumption, system effectiveness is improved, in another kind embodiment of the invention
In, output shaft, input shaft and freewheel clutch is provided between the pump shaft of the impeller axle of radial-inward-flow turbine 3 and working medium pump 1, is exported
One end of axle is connected with the impeller axle of radial-inward-flow turbine 3, and the other end is connected with the driving link of freewheel clutch, one end of input shaft with
The pump shaft connection of working medium pump 1, the other end are connected with the driven member of freewheel clutch, by arranging between output shaft and input shaft
Freewheel clutch, in the starting stage, when generator-motor device 6 drives working medium pump 1 to run, the rotating speed of driven member is higher than master
Moving part, therefore freewheel clutch, in surmounting state, the impeller axle of radial-inward-flow turbine 3 is not affected by working medium pump 1, when electromotor-
When electronic device 6 is converted to 5 state of electromotor, the rotating speed of the driven member being connected on 1 pump shaft of working medium pump gradually with driving link
Rotating speed is identical, and so as to coordinate the transmission for realizing torque with driving link, at this moment, the impeller axle of radial-inward-flow turbine 3 drives the pump of working medium pump 1
Axle is rotated, consequently, it is possible to avoid the starting stage in system operation, generator-motor device 6 drives working medium pump 1 simultaneously
Pump shaft and radial-inward-flow turbine 3 impeller axle rotate, reduce energy consumption, be favorably improved system effectiveness.
Further optimize above-mentioned technical proposal, in embodiments of the present invention, the pump shaft and generator-motor of working medium pump 1
Gear-box 9 is provided between the rotating shaft of device 6, and the rotating shaft of generator-motor device 6 is by gear-box 9 and the pump of working medium pump 1
Axle is connected.
When system is subject to unexpected overload, the damage of actuating device or miscellaneous part is often caused, therefore, at this
In bright embodiment, in order to avoid between the pump shaft of the problems referred to above, gear-box 9 and working medium pump 1 and gear-box 9 and electromotor-electricity
Shaft coupling is provided between the rotating shaft of motivation device 6, so as to play certain safeguard protection effect.
Working medium pump 1 can adopt polytype pump, as long as generator-motor device 6 and radial-inward-flow turbine 3 can be realized
Between torque transmission, in embodiments of the present invention, working medium pump 1 be centrifugal pump.
Further optimize above-mentioned technical proposal, as the organic steam for generating has certain pressure, for avoiding organic work
Matter flows back, and in embodiments of the present invention, is additionally provided with check valve between working medium pump 1 and vaporizer 2.
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (6)
1. a kind of organic rankie cycle system, including being in turn connected into the working medium pump (1) in loop, vaporizer (2), centripetal
Flat (3) and condenser (4), it is characterised in that also including generator-motor device (6) and for controlling the generating
The controller (7) that machine-electronic device (6) switches between electric motor state and electromotor (5) state, radial-inward-flow turbine (3)
Impeller axle and the pump shaft of the working medium pump (1) between and the working medium pump (1) with the generator-motor device
(6) it is connected between rotating shaft；
Under original state, described generator-motor device (6) are electric motor state to drive the working medium pump (1), when described
When working medium pump (1) reaches preset rotation speed, generator-motor device (6) are switched to electromotor by controller (7)
(5) state.
2. organic rankie cycle system according to claim 1, it is characterised in that the leaf of radial-inward-flow turbine (3)
It is coaxially connected by power transmission shaft (8) between wheel shaft and the pump shaft of the working medium pump (1).
3. organic rankie cycle system according to claim 1, it is characterised in that the leaf of radial-inward-flow turbine (3)
It is provided with output shaft, input shaft and freewheel clutch between wheel shaft and the pump shaft of the working medium pump (1), the one of the output shaft
End is connected with the impeller axle of the radial-inward-flow turbine (3), and the other end is connected with the driving link of the freewheel clutch, the input shaft
One end be connected with the pump shaft of the working medium pump (1), the other end is connected with the driven member of the freewheel clutch.
4. organic rankie cycle system according to claim 1, it is characterised in that the pump shaft of working medium pump (1)
Gear-box (9), generator-motor device (6) are provided between rotating shaft with generator-motor device (6)
Pump shaft of the rotating shaft by the gear-box (9) with the working medium pump (1) be connected.
5. organic rankie cycle system according to claim 4, it is characterised in that gear-box (9) with it is described
It is all provided between the pump shaft of working medium pump (1) and between the gear-box (9) and the rotating shaft of generator-motor device (6)
It is equipped with shaft coupling.
6. the organic rankie cycle system according to any one of claim 1-5, it is characterised in that the working medium pump
(1) it is centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983134.9A CN106523056A (en) | 2016-11-08 | 2016-11-08 | Organic working medium rankine cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983134.9A CN106523056A (en) | 2016-11-08 | 2016-11-08 | Organic working medium rankine cycle system |
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| Publication Number | Publication Date |
|---|---|
| CN106523056A true CN106523056A (en) | 2017-03-22 |
Family
ID=58350263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610983134.9A Pending CN106523056A (en) | 2016-11-08 | 2016-11-08 | Organic working medium rankine cycle system |
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| CN (1) | CN106523056A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996315A (en) * | 2017-05-17 | 2017-08-01 | 苏州欧拉透平机械有限公司 | ORC expands machine driving generator and liquid pump energy-conservation unit |
| CN108301887A (en) * | 2017-12-08 | 2018-07-20 | 上海电力学院 | A kind of cogeneration and Organic Rankine Cycle association system |
| CN116599231A (en) * | 2023-05-18 | 2023-08-15 | 中国电建集团河北省电力勘测设计研究院有限公司 | Compressed air energy storage system of coupling organic Rankine cycle without heat storage tank |
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| JPS63253101A (en) * | 1987-04-08 | 1988-10-20 | Mitsubishi Heavy Ind Ltd | Compound generating system |
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| CN201288679Y (en) * | 2008-11-10 | 2009-08-12 | 北京得能创新科技有限公司 | Dual driving apparatus for steam turbine and electric motor |
| CN203175634U (en) * | 2013-03-28 | 2013-09-04 | 上海维尔泰克螺杆机械有限公司 | Cascade organic Rankine cycle system |
| CN204610172U (en) * | 2015-04-20 | 2015-09-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of vapour, electric hybrid drive boiler feed pump |
| CN205064014U (en) * | 2015-07-10 | 2016-03-02 | 长沙山水节能研究院有限公司 | Waste heat residual pressure retrieves organic rankine cycle power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63253101A (en) * | 1987-04-08 | 1988-10-20 | Mitsubishi Heavy Ind Ltd | Compound generating system |
| CN101042094A (en) * | 2006-03-23 | 2007-09-26 | 株式会社电装 | Waste heat collecting system having expansion device |
| CN201288679Y (en) * | 2008-11-10 | 2009-08-12 | 北京得能创新科技有限公司 | Dual driving apparatus for steam turbine and electric motor |
| CN203175634U (en) * | 2013-03-28 | 2013-09-04 | 上海维尔泰克螺杆机械有限公司 | Cascade organic Rankine cycle system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996315A (en) * | 2017-05-17 | 2017-08-01 | 苏州欧拉透平机械有限公司 | ORC expands machine driving generator and liquid pump energy-conservation unit |
| CN108301887A (en) * | 2017-12-08 | 2018-07-20 | 上海电力学院 | A kind of cogeneration and Organic Rankine Cycle association system |
| CN108301887B (en) * | 2017-12-08 | 2020-06-26 | 上海电力学院 | Combined cooling, heating and power generation and organic Rankine cycle combined system |
| CN116599231A (en) * | 2023-05-18 | 2023-08-15 | 中国电建集团河北省电力勘测设计研究院有限公司 | Compressed air energy storage system of coupling organic Rankine cycle without heat storage tank |
| CN116599231B (en) * | 2023-05-18 | 2024-02-20 | 中国电建集团河北省电力勘测设计研究院有限公司 | Compressed air energy storage system of coupling organic Rankine cycle without heat storage tank |
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Application publication date: 20170322 |