CN1086290A - Utilize the Rankine cycle power plant of organic working medium - Google Patents
Utilize the Rankine cycle power plant of organic working medium Download PDFInfo
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- CN1086290A CN1086290A CN 93116885 CN93116885A CN1086290A CN 1086290 A CN1086290 A CN 1086290A CN 93116885 CN93116885 CN 93116885 CN 93116885 A CN93116885 A CN 93116885A CN 1086290 A CN1086290 A CN 1086290A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
Rankine cycle power plant comprises one-to-many level steam turbine group, each unit has an inlet and an output shaft of accepting the vaporization working medium, and each unit utilization vaporization working medium of being provided to its inlet produces the thermodynamic medium of crossing that power and generation have consumed heat with the expansion working medium at output shaft.A generator is installed between the unit, directly links to each other with the unit output shaft.The thermodynamic medium excessively of consumption of calorie offers the inlet of another group from a unit.
Description
The present invention relates to use the method for decompressor conversion thermal energy work done, for example use the Rankine cycle power plant of organic working medium, more precisely, is a kind of power equipment with the low grade heat source running.
It is the Rankine cycle power plant that medium turns round with various organic fluids (as, biphenyl) that U.S. Pat 3234734 has disclosed a kind of.The thermodynamic properties of many organic medias is such, and the saturated vapour curve on temperature-entropy (T-S) figure of medium has positive slope.Therefore, discharge the working medium of power equipment vaporizer, be provided to the steam turbine inlet, expand and discharge steam turbine with superheat state with saturated-vapor state.When it expand into condenser pressure, working medium can produce overheated in a large number, and condenser must can be condensed at working medium, eliminated that these are overheated before the Returning evaporimeter.Discharging these by condenser, to be superheated to external environment be a kind of waste, is discharged face and can not changes work done because be increased in the vaporizer of power equipment and the preheater heat energy of working medium.
This patent is attempted by reducing the thermodynamic efficiency that heat improves described power equipment of crossing in the vaporization working medium of supplying with condenser.Reduce overheated this purpose that reaches between stage.Especially, this patent disclosure a kind of multistage turbine, wherein from steam turbine, discharged, and mixed with liquid working media in coming from the preheater that is located between power equipment condenser and the vaporizer by the vaporization working medium that prime is discharged.Therefore, be used for the overheated minimizing of the working medium of back level, make this heat energy be utilized to change work done, and the device row that is not condensed.Put consequently, the power that power equipment produces increases, and has improved thermodynamic efficiency.
Although having improved effectively, the design method of U.S. Pat 3234734 uses the performance that multistage turbine is configured to the Rankine cycle power plant of organic media running, but exist not suggestion to constitute the next power saving of a real system in following condition generating, for example, adopt the low-temperature heat source of about 10MW, be lower than 400 geothermal water as temperature.Like this, this patent has been showed single multistage turbine, or circulates with the two of two steam turbine, and they must connect generator with the method for gear reducer, because steam turbine and generator speed differ widely.This configuration makes structure, maintenance, lubricated complicated, because this needs Multistage bearing and gear reducer.
Therefore the purpose of this invention is to provide a kind of new improved decompressor, as adopt the Rankine cycle power plant of organic working medium, this generally with middle temperature or cryogen than the low grade heat source running, it is simple, reliable.
The device that produces power according to the present invention comprises a pair of expansion unit, be preferably many group steam turbine set, each unit has inlet and the output shaft that receives the vaporization working medium, each unit utilization is provided to the vaporization working medium of its inlet, make the working medium expansion and produce power at output shaft, overheated working medium has produced heat loss.A generator is installed between the unit, and output shaft direct and unit is coupled.The invention provides a kind of method from a unit to another unit inlet that supply with the working medium that consumes overheated heat energy from.
Because steam turbine is divided into the unit of separation and is installed in the generator both sides, the mechanical structure of power equipment is simplified, because only need two bearings to support steam turbine and generator, and need between steam unit and generator deceleration system be set.
Device of the present invention further comprises a vaporizer, is used to provide the vaporization working medium and gives one of unit; A preheater, preferably separate, be used for the working medium of heating is supplied with vaporizer, preferably also comprise a mixer with vaporizer, be arranged between the unit, the process mixer has made from the consumption of a unit inlet that thermodynamic medium is sent to another unit of crossing of heat energy.The most desirable method is provided to liquid working media is fed to mixer so that reduce the heat of crossing of working medium, and this medium is delivered to the inlet of other unit.The working medium that the liquid working media of supply mixer is preferably heated by preheater.The another kind of selection is that liquid working media is directed to does not have the condenser of preheating output terminal.
In the mode of example embodiments of the invention are described with reference to accompanying drawing, wherein:
Fig. 1 is the skeleton diagram according to an embodiment of power equipment of the present invention.
Fig. 2 is a kind of temperature-entropy (T-S) figure of typical organic media.
Fig. 3 is second an embodiment's of the present invention skeleton diagram.
With reference to accompanying drawing, label 10 expressions comprise one-to-many level steam turbine group 12,14 according to device of the present invention, and each unit has inlet 16 and the output shaft 18 that receives the vaporization working medium.The vaporization working medium that these steam turbine set utilizations are provided to inlet 16 evaporates working medium and produce power on output shaft 18, and is crossed the as received basis consumption of calorie that heats, as described below.Device 10 further comprises the generator 20 that is installed between unit 12 and 14, and it directly is connected with the input shaft of unit.Particularly axle 18 is free ends of the integral shaft of extending with the opposite end of generator 20, and is installed in the bearing 22,24 of two separation, comes support generator and two steam turbine set thus.Steam turbine set 12 comprises the wheel disc 26A that is fixedly coupled on the output shaft 18, and the many turbine blade 28A on the wheel disc periphery.Steam turbine set 14 comprises wheel disc 26B, and it is fixedly attached on the axle 18, and the many turbine blade 28B on this impeller periphery.Each unit comprises also that preferably generator 20 all is contained in the casing 30.
According to the output power of power equipment, each unit can comprise more than the one-level, is preferably secondary.The inlet 16 of steam turbine set as shown in the figure, but according to the accepted practice of relevant organic media steam turbine, each inlet is the annular nozzle form, provides the vaporization working medium with this.Device 10 further comprises the equipment of pipeline 32 forms, so that provide the thermodynamic medium of crossing that has consumed heat energy to unit 12 from unit 14.
Because working medium uses in order, be less than the pressure ratio of unit of the part of single multistage whole steam turbine mostly through the pressure ratio of each unit in steam turbine set.This that is to say, if the steam state working medium is 200 pounds/square inch to the inlet pressure of unit 14, may be 60 pounds/square inch the order of magnitude at the pressure of unit 12 inlets, and the pressure of condenser may be 20 pounds/square inch the order of magnitude.If use single multistage turbine, the pressure by steam turbine falls and is about 10: 1.Rotational speed is several times of the desirable rotational speed of low price generator, and its speed is approximately the 1800RPM(revolutions per).
According to the present invention, use the unit of two separation that pressure by each unit will be fallen and be about 3: 1.So steam turbine set will be rotational speeies of standard to generator 20 with 1800 rev/mins of these optimum speed high-efficient operation.So just do not need any gear reduction between steam turbine set and the generator.This structure also allows the outrigger shaft of generator 20 to be fixed in bearing 22 and 24, and has enough additional overhangs to fix the wheel disc 26A and the 26B of unit.If can use two or more wheels dish in each unit of conditions permit.
Although each unit 12 of representing in the accompanying drawing and 14 preferably disposes two-stage for single-stage, is working medium with the pentane, generator 20 3.5MW that under the initial conditions of above regulation, will generate electricity.
Pipeline 44 constitutes provides the device of liquid working media to mixer 42, before the inlet 16 that is supplied to unit 12 at working medium, reduces the heat excessively of the working medium of being discharged by unit 14.Especially, mixer 42 is chambeies, and wherein the liquid working media that is provided by pipeline 44 is injected advances the overheated vaporization working medium of being discharged by unit 14.Provide enough volumes to mixer, so that working medium before the inlet 16 that enters unit 12, reduces the heat of crossing of working medium.It is to be in basic saturated-vapor state in the ingress of unit 12 that the design makes working medium.
Power equipment operation necessary energy is provided by low-temperature heat source, is supplied to vaporizer 34 as geothermal water etc.After the working medium vaporization, the geothermal water that has consumed heat energy 42 is sent to preheater 36 by the road in vaporizer, and the waste heat of geothermal water has been passed to the liquid working media in the preheater in the preheater.The geothermal water that has further consumed heat then is transported in the injector well usually to be handled.
Condensed fluid by condenser 38 produces is illustrated as by water cooling, but also can selects by air cooling, and condensed fluid is the state among the T-S figure " a " in Fig. 2.Therefore, condensed fluid is on the saturated liquids line among the T-S figure fully.Pump 40 is used to improve the pressure of liquid working media, then medium is transplanted on " b " state in the supercooling zone of T-S figure.
In preheater 36, when the working medium temperature was lifted to the temperature of vaporizer, the state of working medium changed to " c " from " b ", and position " c " is on the saturated liquidus of T-S figure.The heat energy that saturated solution in vaporizer 34 absorbs causes that working medium is waiting under the gentle equipressure vaporizes, shown in the T-S figure of Fig. 2.At evaporator outlet, working medium is in saturated substantially vapor state.Shown in " d " point.The working medium of vaporization is sent to the inlet 16 of unit 14.In this unit, working medium expand into the overheated zone to constant entropy basically, ends at " e " state point of vaporizer and condenser intermediate pressure.Positive saturated vapor slope among the T-S figure of organic media causes the superheat state by the steam of unit 14 discharges.
The consumption of discharging by unit 14 working medium of heat energy be provided for mixer 42, the liquid of " c " state point is injected in the vaporization working medium in the preheater 36.This liquid is vaporized by the heat exchanging process of crossing thermodynamic medium, so that working medium is in " f " state substantially at the inlet of unit 12.In other words, the vaporization working medium is because the effect of mixer 42 moves to the saturated vapor state along isopiestics.Therefore, the flow-rate ratio that is provided to unit 12 inlet 16 is provided to the flow of the inlet 16 of unit 14 and wants big, and this is because draw media and 44 causes that are fed to mixer 42 by the road by preheater 36.
Substantially saturated steam is provided to unit 12, expansion working live axle 18 in unit, and produce the consumption be in " g " state point heat cross thermodynamic medium.This thermodynamic medium of crossing that has consumed heat is provided to condenser 38, also circulates again and again to " a " state through condensation working medium " g " state in the condenser.
Some advantages of device shown in Figure 1 can be seen by Fig. 2, and hatched region representation reduces from unit 14 to unit 12 the overheated total amount of working medium among Fig. 2.Generally do not have mixer 42, this heat will be injected in the environment space in the condenser 38.Yet in the present invention, this heat is used in the purpose that produces power in second unit.Should additional merit represent by the increasing amount of spurting into liquid in the mixer 42.
Device further advantages shown in Figure 1 show and have improved turbine efficiency, reaching of this purpose is by reducing the pressure ratio through each unit, adopt bigger blade dimensions, use improved blade angle, and the increase of flow is arranged as series connection rather than in parallel the realization by changing steam turbine set.Gear reducer between the slow-speed of revolution of comprehensive steam turbine and elimination unit and generator, and use a public axon to fix steam turbine wheel disc and generator, permission is by the mechanical part of two bearing supporting power equipments, eliminated shaft coupling, reached best coupling, and almost do not have vibration stress to occur, thereby be convenient to Machine Design.In addition, because reduced rotating speed, the stress in the steam turbine wheel disc also is lowered.Therefore, reached the special efficient and the purpose of simple design, safeguarded simultaneously certainly and also reduced.
According to the present invention, the temperature that has consumed the geothermal water of heat energy can be lowered to new optimum, and this is not to be added with respect to the liquid inductance working medium to reduce the working medium of supplying with other unit and cross for the system of heat.Allow more substantial heat energy to be output in the power equipment like this and improved power output with same Carnot efficiency.
Because used the expansion progression that increases preferably, the blade Mach number that uses among the present invention is reduced valuably, so that turbine efficiency is higher.In addition, because according to arrangement of the present invention, steam turbine set is series connection, is the twice of parallel running steam turbine through the flow of stage, causes increasing blade height and reaches higher level of efficiency.And, higher mass flow rate by each level steam turbine and in the acting in conjunction of the low pressure power rate of each grade, reduced additional loss, this be because the leakage of steam turbine wheel disc sealing (as, the extensive work medium leaks and flows between turbine rotor circle edge and steam turbine from the steam turbine wheel disc), and the cause that reduces of the loss of nozzle dividing plate.Also have since to replenish liquid working media in the mixer to reduce the heat of crossing of the working medium of supplying with the downstream unit, the turbine blade height of low pressure unit can further be increased, and then increases turbine efficiency.
In addition, the present invention allows to use than U.S. Pat 4,578, and 953 and 4,700, lead due to 543 and use steam turbine progression also to want many stages, comprehensive reference U. S. Patent.Preferably adopt in the present invention 4 level steam turbines (as, each unit has two turbine wheel discs), two unit parallel connections are built and each unit of operation uses two turbine stages usually according to above two pieces of U. S. Patents.Fig. 3 has provided this embodiment of the present invention, because application is of the present invention more multistage, the blame meter characteristic of this system is improved greatly.
Off-design performance mainly is that the variation of temperature by outside air temperature and/or condenser cooling medium causes that cooling medium has been adjusted the pressure of cooler, thereby has changed the back pressure of steam turbine.Owing to separate the unit that steam turbine becomes separation, the Mach number in the fourth stage or the final stage enough height (as, be about M=1.2) be separated basically with the variation that causes upstream wheel disc and back pressure.Thereby be that final stage is subjected to the pressure of steam turbine to fall the influence of variation basically.For example, if steam turbine is designed to reduce to 200psi(pound/inch through the pressure of whole steam turbine
2), owing to the off-design condition reason, actual pressure falls and is increased to 220psi, and the pressure of the 20psi that final stage will be added falls, and other grades of upstream will remain in the best design point simultaneously.
The method that increases the final stage Mach number is from the lower unit of pressure, as drawing more merit in the working medium in the unit 12.This falls with regard to the pressure that requires to increase in the unit 12.In addition, because the design's steam turbine makes unit 12 produce higher power, reached higher total turbine efficiency.This unit is compared with the unit 14 with elevated pressures has intrinsic more high efficiency, and reason is that the seepage of steam turbine wheel disc in the unit 12 is less, and blades height makes the lower density of mass flux of generation in the unit 12 because increase.In addition, owing to used a pair of unit, allow greater flexibility in the design, causing has increased turbine efficiency.For example, the reaction grade in the unit 12 can be greater than the reaction grade of unit 14, and velocity of blade can be different, and the steam nozzle jet velocity of two units also can be different, or the like.Like this since when keeping high efficiency levels the wheel disc dimensional changes, so can be maintained at about 1800RPM(rev/min when turbine speed) time, each unit 12 and 14 velocity of blade can have a great difference.
In addition, owing to motor 20 is installed between unit 12 and 14, the torque on the axle 18 is axially offset, and avoids like this transmitting the torque that two units produce by an axle in the rotating shaft.
Although diagram mixer 42 provides liquid working media by preheater 36, the liquid working media of the condensed fluid form that condenser 38 produces also can be supplied with mixer from the outlet of pump 40.In this case, the liquid that needs less amount is that intergrade reduced heat, because condensed fluid will at first absorb sensible heat when being elevated to saturated liquid temperature under intergrade pressure, absorbs the latent heat of vaporization in the thermodynamic medium then.
Though diagram mixer 42 provides liquid working media by preheater 36, under certain conditions, mixer 42 can be removed so that permission equipment 32 only will consume the inlet 16 that the superheated vapor unit 14 of heat energy is sent to unit 12, yet above-mentioned many advantages will be present in such system.Therefore, the cost of this system is lowered.
Though the geothermal water that preheater 36 shown in Figure 1 has consumed heat energy with vaporizer 34 acceptance, when device such more than two or two or system (as, a plurality of systems or device) to be similar to US Patent No s, 578,953 and 4,700, when 543 mode arranged in series is used together, geothermal water can be offered the vaporizer of each system expediently with serial fashion, as shown in Figure 3, has consumed the geothermal water of heat with generation.The geothermal water that has consumed heat offers the preheater of each system then with parallel way.When this configuration was employed, unit did not reduce heat in the middle of preferably not using.
Basically almost any organic media can both be used for the present invention.Best organic media is a pentane at present.
An example as validity of the present invention, when medium discharge in by preheater with reduce the consumption of discharging with unit 14 heat working medium cross heat the time, additional work medium 26% flows under the situation of unit 12, the net electric generation that is produced by generator 20 will increase by 11%, and have 15% additional heat energy to be imported into power equipment.In this case, the preheater heat transfer regions must increase by 100%, and condenser region must increase by 17%.In addition, whole steamer probability is imitated will increase by 5%, though by the consumption of unit 14 discharges the working medium of heat energy also be like this when under the situation that did not reduce heat, being sent to the inlet of unit 12.
Advantage that method and apparatus of the present invention provided and good effect see it is tangible by the aforesaid most preferred embodiment of the present invention.Under the situation that does not break away from the described the spirit and scope of the present invention of claim, various changes can be made and change.
Claims (14)
1, a kind of Rankine cycle power plant (10) with energy liquid generating comprises following each constituent element: a preheater (36), can utilize the heat energy in the energy liquid, and be used for the preheating liquid working media; A vaporizer (34) can utilize the heat energy in the energy liquid, is used for evaporating the pre-warmed liquid working media that is produced by preheater (34); One first steam turbine set (14), inlet (16) with vaporization working medium of reception vaporizer (34) generation, also has an output shaft (18), the vaporization working medium that first unit (14) is used to from evaporator drier (34) working medium that expands makes at output shaft (18) and produces power, and produces the thermodynamic medium of crossing that has consumed heat energy; One second unit (12) has an inlet (16) and an output shaft (18), and second unit (12) utilizes the vaporization working medium working medium that expands to produce power to go up at output shaft (18), and produces the thermodynamic medium of crossing that has consumed heat energy; A generator (20) is connected with the output shaft (18) of unit (12 and 14); A condenser (38), the consumption that produces by second unit (12) in order to condensation the working medium of heat energy make and become condensed fluid; Equipment (40) is used for supplying with condensed fluid to preheater (36); It is characterized in that generator (20) is installed between the unit (12 and 14), the consumption that produces by first unit (14) working medium of heat energy be provided to the inlet (16) of second unit (12), and the turbine efficiency of second unit (12) is higher than the turbine efficiency of first order unit (14).
2, according to organic Rankine cycle power plant of claim 1, it is characterized in that second steam turbine set (12) comprises at least one stage, its final stage is isolated the upstream stage of described two steam turbine groups and the variation of the second unit back pressure basically.
3,, it is characterized in that the final stage Mach number in second steam turbine set (12) is about 1.2, so that base is gone up with the variation of the upstream stage of described second steam turbine set (12) and back pressure isolated according to organic Rankine cycle power plant of claim 2.
4,, it is characterized in that organic working medium is a pentane according to the device of claim 1.
5, according to the moving commentaries on classics equipment of claim 1, it is characterized in that generator (20) is set between the unit (12 and 14), generator (20) allows directly to be driven by the output shaft (18) of unit (12 and 14), and unit is during with relative low-speed running, and generator is with same rotation speed operation.
6,, it is characterized in that relative low speed is 1800 rev/mins according to the power equipment of claim 5.
7, according to the power equipment of claim 1, it is characterized in that generator (20) is installed between the unit (12 and 14), generator (20) allows directly to be driven by unit output shaft (18), and unit is during with relative low-speed running, and generator is with same rotation speed operation.
8,, it is characterized in that relative low speed is 1800 rev/mins according to the power equipment of claim 7.
9, according to each power equipment of aforementioned claim, the complementary features of second system is, have the same constituent element that at least one system has, and provide energy liquid to all evaporators (34) of system, consumed the equipment of the energy liquid of heat energy with generation with serial fashion; The also promising equipment that the energy liquid that has consumed heat energy is provided to all preheaters of system (36) with parallel way.
10, according to each organic Rankine cycle power plant of aforementioned claim, it is characterized in that working medium is an organic fluid.
11, according to each organic Rankine cycle power plant of aforementioned claim, it is characterized in that energy liquid is middle temperature or cryogen.
12, according to each organic Rankine cycle power plant of aforementioned claim, it is characterized in that energy fluid is a geothermal fluid.
13, according to each organic Rankine cycle power plant of aforementioned claim, it is characterized in that energy fluid is a geothermal water.
14, according to each power equipment of aforementioned claim, the complementary features of mixer (42) is between its unit that is arranged on each system (12 and 14), and the thermodynamic medium of crossing that has consumed heat is sent to another unit (12) via mixer (42) from a unit (14); Equipment (44) provides liquid working media to mixer (42) in addition, be used for reduce supplying with another unit (12) inlet (16) working medium cross heat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91800192A | 1992-07-24 | 1992-07-24 | |
| US918,001 | 1992-07-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086290A true CN1086290A (en) | 1994-05-04 |
| CN1075589C CN1075589C (en) | 2001-11-28 |
Family
ID=25439630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93116885A Expired - Lifetime CN1075589C (en) | 1992-07-24 | 1993-07-24 | Rankine cycle power plant utilizing organic working fluid |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1075589C (en) |
| IL (1) | IL106454A0 (en) |
| IT (1) | IT1265112B1 (en) |
| MX (1) | MX9304455A (en) |
| NZ (1) | NZ248146A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346061C (en) * | 2002-11-13 | 2007-10-31 | Utc电力有限责任公司 | Power generation with a centrifugal compressor |
| CN102536366A (en) * | 2010-11-22 | 2012-07-04 | 中材节能发展有限公司 | Dual-parameter dual-drive steam turbine power generator set |
| CN105464729A (en) * | 2016-01-07 | 2016-04-06 | 上海维尔泰克螺杆机械有限公司 | Smoke and hot fluid waste heat recycling system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5822990A (en) * | 1996-02-09 | 1998-10-20 | Exergy, Inc. | Converting heat into useful energy using separate closed loops |
| US7305829B2 (en) | 2003-05-09 | 2007-12-11 | Recurrent Engineering, Llc | Method and apparatus for acquiring heat from multiple heat sources |
| US8117844B2 (en) | 2004-05-07 | 2012-02-21 | Recurrent Engineering, Llc | Method and apparatus for acquiring heat from multiple heat sources |
| US8739512B2 (en) | 2007-06-06 | 2014-06-03 | Areva Solar, Inc. | Combined cycle power plant |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458493A (en) * | 1982-06-18 | 1984-07-10 | Ormat Turbines, Ltd. | Closed Rankine-cycle power plant utilizing organic working fluid |
| JPS59141028A (en) * | 1983-01-31 | 1984-08-13 | Nissan Motor Co Ltd | Washer type pressure sensor |
| US4700543A (en) * | 1984-07-16 | 1987-10-20 | Ormat Turbines (1965) Ltd. | Cascaded power plant using low and medium temperature source fluid |
| IL88571A (en) * | 1988-12-02 | 1998-06-15 | Ormat Turbines 1965 Ltd | Method of and apparatus for producing power using steam |
-
1993
- 1993-07-14 NZ NZ24814693A patent/NZ248146A/en not_active IP Right Cessation
- 1993-07-22 IL IL106454A patent/IL106454A0/en not_active IP Right Cessation
- 1993-07-23 MX MX9304455A patent/MX9304455A/en unknown
- 1993-07-24 CN CN93116885A patent/CN1075589C/en not_active Expired - Lifetime
- 1993-07-26 IT IT93MI001662A patent/IT1265112B1/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346061C (en) * | 2002-11-13 | 2007-10-31 | Utc电力有限责任公司 | Power generation with a centrifugal compressor |
| CN102536366A (en) * | 2010-11-22 | 2012-07-04 | 中材节能发展有限公司 | Dual-parameter dual-drive steam turbine power generator set |
| CN102536366B (en) * | 2010-11-22 | 2015-01-21 | 中材节能发展有限公司 | Dual-parameter dual-drive steam turbine power generator set |
| CN105464729A (en) * | 2016-01-07 | 2016-04-06 | 上海维尔泰克螺杆机械有限公司 | Smoke and hot fluid waste heat recycling system |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1265112B1 (en) | 1996-10-30 |
| ITMI931662A1 (en) | 1995-01-26 |
| NZ248146A (en) | 1995-04-27 |
| IL106454A0 (en) | 1993-11-15 |
| CN1075589C (en) | 2001-11-28 |
| MX9304455A (en) | 1995-01-31 |
| ITMI931662A0 (en) | 1993-07-26 |
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