CN110985337A - Integrated driving unit and operation method thereof - Google Patents
Integrated driving unit and operation method thereof Download PDFInfo
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- CN110985337A CN110985337A CN201911213635.9A CN201911213635A CN110985337A CN 110985337 A CN110985337 A CN 110985337A CN 201911213635 A CN201911213635 A CN 201911213635A CN 110985337 A CN110985337 A CN 110985337A
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- Prior art keywords
- gear
- turbine
- driving motor
- recompressor
- clutch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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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
- F01K15/00—Adaptations of plants for special use
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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
- 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
- F01K25/103—Carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/006—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by steam engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the field of power devices and aims to solve the problem of the existing supercritical CO2The problem that the combination form of all components of the generator set is loose is solved, and an integrated driving unit and an operation method thereof are provided. The integrated driving unit comprises a gear box, a turbine, a driving motor, a main compressor and a multi-stage re-compressor; the gear box is provided with a plurality of gear shafts in transmission fit; the driving motor, the turbine, the main compressor and each stage of recompressor are respectively connected to one connecting end of a gear shaft and distributed on two sides of the gear box; the driving motor is connected to one connecting end of one gear shaft through a clutch; separation deviceThe clutch has an engaged state and a disengaged state, and when the clutch is in the engaged state, the driving motor can provide driving force for the whole unit so as to start the whole unit; and when the clutch is in a disengaged state, the driving motor stops working, and the turbine is used as the driving equipment of the whole unit. The invention has the advantages of compact structure and high efficiency of the unit.
Description
Technical Field
The invention relates to the field of power devices, in particular to an integrated driving unit and an operation method thereof.
Background
For medium and high power supercritical CO2The driving part of the generator set usually needs to be provided with a main compressor, a secondary compressor, a turbine and other equipment, and in order to realize the starting of the driving part, turning is also generally needed to realize.
In the prior art, the connection between the devices is usually loose, so that the whole driving unit is large in size and complex in pipeline.
Disclosure of Invention
The invention aims to provide an integrated drive unit and an operation method thereof, so as to solve the problem of the existing supercritical CO2The loose combination form of each component of the generator set.
The embodiment of the invention is realized by the following steps:
an integrated driving unit comprises a gear box, a turbine, a driving motor, a main compressor and a multi-stage re-compressor; the gear box is provided with a plurality of gear shafts in transmission fit, and one end or two ends of each gear shaft are connecting ends; the driving motor, the turbine, the main compressor and each stage of recompressor are respectively connected to one connecting end of a gear shaft and distributed on two sides of the gear box; the driving motor is connected to one connecting end of one gear shaft through a clutch; the clutch has an engaged state and a disengaged state, and when the clutch is in the engaged state, the driving motor can provide driving force for the whole unit so as to start the whole unit; and when the clutch is in a disengaged state, the driving motor stops working, and the turbine is used as the driving equipment of the whole unit.
When the integrated driving unit is used, firstly, the driving motor is started when the clutch is in a joint state, so that the driving motor drives the gear box, the main compressor, the turbine and the recompressor at each stage, which are connected to the gear shaft of the gear box, to start and operate; after the standby unit finishes starting normal operation, the clutch is disconnected, the turbine is used as driving equipment, the main compressor and the compressors at all stages are driven to operate, and work is done outwards.
The driving motor is disengaged when the unit normally works, so that the loss of the unit in operation is reduced; the efficiency of the unit is improved. And the driving motor in the scheme can replace the function of turning gear of the turbine, and the unit can cancel an independent turning gear. In addition, in the scheme, the turbine and the compressors of the unit are integrated on a gear box and distributed on two sides of the gear box, the main compressor, the recompressor and the external acting power generation are all driven by the same turbine, one part of the output power of the turbine is used for driving the main compressor and the recompressor, the other part of the output power is used for outputting acting power, the unit is compact in structure and function, the complex connection structure is reduced, and the overall energy conversion rate is improved; and the main compressor, the secondary compressor and the turbine are arranged on two sides, so that the axial thrust can be effectively balanced.
In one embodiment, the main compressor, the stage recompressor, the drive motor, and the turbine are all mounted on the same common base.
The main compressor, the secondary compressor, the motor and the turbine are arranged on the common base, and the whole dispatching of the unit can be realized.
In one embodiment, the gear box comprises a box body, three gear shafts which are sequentially and rotatably arranged in the box body, and transmission gears fixedly connected to the gear shafts, wherein the transmission gears are in meshed transmission connection with each other.
In one embodiment, the number of teeth of each of the transmission gears is not equal, so that the rotational speeds of the gear shafts are not equal.
The unit adopts the multiaxis to arrange, carries out the rotational speed through the gear box and matches, can realize different rotational speeds between each rotor.
In one embodiment, the turbine and the main compressor are connected to both ends of a gear shaft located in the middle, respectively; the recompressor has three stages, and the driving motor and the three-stage recompressor are respectively connected to one of the four connecting ends of the rest two gear shafts.
In the setting mode, the transmission compressor and the main compressor are respectively arranged at two ends of the middle gear shaft, and the compressors are arranged at two sides, so that the axial thrust of the transmission compressor and the axial thrust of the main compressor can be well balanced.
In one embodiment, the turbine is attached to one end of a centrally located gear shaft; the recompressor has two stages, and the two stages of recompressors and the turbine are positioned on the same side of the gear box and are correspondingly connected with the corresponding ends of the other two gear shafts; the main compressor and the one-stage recompressor are coaxially arranged and are respectively positioned at two sides of the gear box together with the one-stage recompressor; the driving motor and the other stage of recompressor are coaxially arranged and are respectively positioned at two sides of the gear box together with the stage of recompressor.
In the arrangement mode, the whole body is also in a two-side distribution mode, and has certain symmetry.
The application also provides an operation method of the integrated driving unit, which comprises the following steps:
firstly, when the clutch is in a joint state, starting a driving motor, and enabling the driving motor to drive a gear box, a main compressor, a turbine and each stage of recompressor connected to a gear shaft of the gear box to start and operate;
after the standby unit finishes starting normal operation, the clutch is disconnected, the turbine is used as driving equipment, the main compressor and the compressors at all stages are driven to operate, and work is done outwards.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings referred to in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 is a three-dimensional view of an integrated drive unit in an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1;
fig. 3 is a schematic diagram (schematic structural diagram) of another embodiment of the integrated drive unit in the embodiment of the invention.
Icon: 1-a common base; 2-a main compressor; 3-recompressor; 31-recompression machine first stage; 32-second stage of recompressor; 33-recompressor third stage; 6-driving a motor; 7-a clutch; 8-a gearbox; 9-turbine; 10-an output shaft; 11-gear shaft; 12-a gear; 13-box body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring collectively to fig. 1, the present embodiment provides an integrated drive assembly including a gear box 8, a turbine 9, a drive motor 6, a main compressor 2, and a multi-stage re-compressor 3. In this embodiment, the main compressor 2, the recompressors 3 of the respective stages, the drive motor 6, and the turbine 9 are all mounted on the same common base 1. The main compressor 2, the secondary compressor 3, the driving motor 6 and the turbine 9 are arranged on the common base 1, and the whole dispatching of the unit can be realized.
Referring to fig. 2, the gear box 8 has a plurality of gear shafts 11 in driving fit, and one end or both ends of each gear shaft 11 are connecting ends; the driving motor 6, the turbine 9, the main compressor 2 and each stage of the secondary compressor 3 are respectively connected with one connecting end of a gear shaft 11 and distributed on two sides of the gear box 8; wherein, the driving motor 6 is connected with one connecting end of one gear shaft 11 through the clutch 7; the clutch 7 has an engaged state and a disengaged state, and when the clutch 7 is in the engaged state, the driving motor 6 can provide driving force for the whole unit so as to start the whole unit; when the clutch 7 is in a disengaged state, the driving motor 6 stops working, and the turbine 9 is used as a driving device of the whole unit.
When the integrated driving unit in the scheme is used, firstly, the driving motor 6 is started when the clutch 7 is in a joint state, so that the driving motor 6 drives the gear box 8 and the main compressor 2, the turbine 9 and the secondary compressors 3 at all stages, which are connected to the gear shaft 11 of the gear box 8, to start and operate; after the standby unit finishes the normal operation of starting, the clutch 7 is disconnected, the turbine 9 is used as driving equipment, and the main compressor 2 and the compressors of all stages are driven to operate while working outwards.
The driving motor 6 is disengaged when the unit normally works, so that the loss of the unit in operation is reduced; the efficiency of the unit is improved. And the driving motor 6 in the scheme can replace the turning function of the turbine 9, and the unit can cancel a separate turning device. In addition, in the scheme, the turbine 9 and each compressor of the unit are integrated on a gear box 8 and distributed on two sides of the gear box 8, the main compressor 2, the recompressor 3 and external work-applying power generation are all driven by the same turbine 9, one part of output work of the turbine 9 is used for driving the main compressor 2 and the recompressor 3, and the other part of output work-applying power is connected with external power generation equipment (power generation equipment is not shown) through an output shaft 10 of the turbine 9, so that the unit is compact in structure and function, reduces complex connection structures, and improves the overall energy conversion rate; and the main compressor 2, the recompressor 3 and the turbine 9 are arranged on two sides, so that the axial thrust can be effectively balanced.
The gear box 8 comprises a box body 13, three gear shafts 11 which are sequentially arranged on the box body 13 in a rotating mode, and transmission gears 12 which are fixedly connected to the gear shafts 11, wherein the transmission gears 12 are meshed with each other and are in transmission connection. Alternatively, the number of teeth of the respective transmission gears 12 is not equal so that the rotational speeds of the gear shafts 11 are not equal. The unit adopts the multiaxis to arrange, carries out the rotational speed through gear box 8 and matches, can realize different rotational speeds between each rotor. In the present embodiment, the turbine 9 and the main compressor 2 are connected to both ends of a gear shaft 11 located in the middle, respectively; the recompressor 3 has three stages (a first stage 31 of the recompressor, a second stage 32 of the recompressor, and a third stage 33 of the recompressor), and the drive motor 6 and the three-stage recompressor 3 are connected to one of the four connecting ends of the remaining two gear shafts 11. In the arrangement mode, the turbine 9 and the main compressor 2 are respectively arranged at two ends of the gear shaft 11 in the middle, and the compressors are arranged at two sides, so that the axial thrust of the two compressors can be well balanced.
In another embodiment of the present embodiment, the turbine 9 is connected to one end of a gear shaft 11 located in the middle; the recompressor 3 has two stages (a first stage 31 of the recompressor and a second stage 32 of the recompressor respectively), and the two stages of recompressors 3 and the turbine 9 are positioned on the same side of the gear box 8 and are correspondingly connected with the corresponding ends of the other two gear shafts 11; the main compressor 2 and one of the first-stage recompressors 3 are coaxially arranged and are respectively positioned at two sides of the gear box 8 together with the first-stage recompressor 3; the driving motor 6 is coaxially arranged with the other stage of the recompressor 3, and is respectively positioned at both sides of the gear box 8 with the stage of the recompressor 3. In the arrangement mode, the whole body is also in a two-side distribution mode, and has certain symmetry.
The embodiment also discloses an operation method of the integrated driving unit, which comprises the following steps:
firstly, when the clutch 7 is in a joint state, the driving motor 6 is started, so that the driving motor 6 drives the gear box 8 and the main compressor 2, the turbine 9 and each stage of secondary compressor 3 connected to the gear shaft 11 of the gear box 8 to start and operate;
after the standby unit finishes the normal operation of starting, the clutch 7 is disconnected, the turbine 9 is used as driving equipment, and the main compressor 2 and the compressors of all stages are driven to operate while working outwards.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an integral type drive unit which characterized in that:
the system comprises a gear box, a turbine, a driving motor, a main compressor and a multi-stage recompressor;
the gear box is provided with a plurality of gear shafts in transmission fit, and one end or two ends of each gear shaft are connecting ends;
the driving motor, the turbine, the main compressor and each stage of the recompressor are respectively connected to one connecting end of a gear shaft and distributed on two sides of the gear box; the driving motor is connected to one connecting end of one gear shaft through a clutch; the clutch has an engaged state and a disengaged state, and when the clutch is in the engaged state, the driving motor can provide driving force for the whole unit so as to start the whole unit; and when the clutch is in a disengaged state, the driving motor stops working, and the turbine is used as the driving equipment of the whole unit.
2. The integrated drive assembly of claim 1, wherein:
the main compressor, the secondary compressors of all stages, the driving motor and the turbine are all arranged on the same common base.
3. The integrated drive assembly of claim 1, wherein:
the gear box includes the box, three rotate in proper order set up in the box the gear shaft to and link firmly in the drive gear of each gear shaft, each drive gear meshes the transmission connection each other.
4. The integrated drive unit of claim 3, wherein:
the number of teeth of each transmission gear is unequal, so that the rotating speeds of the gear shafts are unequal.
5. The integrated drive unit of claim 2, wherein:
the turbine and the main compressor are respectively connected to two ends of a gear shaft positioned in the middle;
the recompressor has three stages, and the driving motor and the three stages of recompressors are respectively connected to one of the four connecting ends of the rest two gear shafts.
6. The integrated drive unit of claim 3, wherein:
the turbine is connected to one end of a gear shaft positioned in the middle;
the recompressor comprises two stages, the two stages of recompressors and the turbine are positioned on the same side of the gear box and are correspondingly connected with the corresponding ends of the other two gear shafts;
the main compressor and the one-stage recompressor are coaxially arranged and are respectively positioned at two sides of the gear box together with the one-stage recompressor;
the driving motor and the other stage of recompressor are coaxially arranged and are respectively positioned at two sides of the gear box together with the recompressor.
7. Method for operating an integrated drive unit according to any one of claims 1 to 6, characterized in that it comprises the following steps:
firstly, when the clutch is in a joint state, starting a driving motor, and enabling the driving motor to drive a gear box, a main compressor, a turbine and each stage of recompressor connected to a gear shaft of the gear box to start and operate;
after the standby unit finishes starting normal operation, the clutch is disconnected, the turbine is used as driving equipment, the main compressor and the compressors at all stages are driven to operate, and work is done outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911213635.9A CN110985337A (en) | 2019-12-02 | 2019-12-02 | Integrated driving unit and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911213635.9A CN110985337A (en) | 2019-12-02 | 2019-12-02 | Integrated driving unit and operation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110985337A true CN110985337A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911213635.9A Pending CN110985337A (en) | 2019-12-02 | 2019-12-02 | Integrated driving unit and operation method thereof |
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| CN (1) | CN110985337A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672877A1 (en) * | 1994-03-15 | 1995-09-20 | The BOC Group plc | Cryogenic air separation |
| WO2011112108A2 (en) * | 2009-07-13 | 2011-09-15 | Institutul Naţional De Cercetare - Dezvoltare Turbomotoare Comoti | Bullgear gas turbine with intercooler and reheat |
| CN107989666A (en) * | 2017-12-28 | 2018-05-04 | 贵州智慧能源科技有限公司 | Integrated enclosed afterheat steam turbine unit |
| CN108223031A (en) * | 2017-12-26 | 2018-06-29 | 王尚锦 | S-CO2Brayton cycle turbine, compressor and generator integral type unit |
| CN109340066A (en) * | 2018-10-16 | 2019-02-15 | 中国科学院工程热物理研究所 | A kind of supercritical carbon dioxide solar power generation energy storage integrated system |
| CN209212514U (en) * | 2018-11-06 | 2019-08-06 | 天元同创(天津)节能环保科技有限公司 | A kind of ORC produces blowing plant |
| CN110273033A (en) * | 2018-03-16 | 2019-09-24 | 袁伟林 | Blast furnace is for air gas hydraulic recovery all-in-one machine |
-
2019
- 2019-12-02 CN CN201911213635.9A patent/CN110985337A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672877A1 (en) * | 1994-03-15 | 1995-09-20 | The BOC Group plc | Cryogenic air separation |
| WO2011112108A2 (en) * | 2009-07-13 | 2011-09-15 | Institutul Naţional De Cercetare - Dezvoltare Turbomotoare Comoti | Bullgear gas turbine with intercooler and reheat |
| CN108223031A (en) * | 2017-12-26 | 2018-06-29 | 王尚锦 | S-CO2Brayton cycle turbine, compressor and generator integral type unit |
| CN107989666A (en) * | 2017-12-28 | 2018-05-04 | 贵州智慧能源科技有限公司 | Integrated enclosed afterheat steam turbine unit |
| CN110273033A (en) * | 2018-03-16 | 2019-09-24 | 袁伟林 | Blast furnace is for air gas hydraulic recovery all-in-one machine |
| CN109340066A (en) * | 2018-10-16 | 2019-02-15 | 中国科学院工程热物理研究所 | A kind of supercritical carbon dioxide solar power generation energy storage integrated system |
| CN209212514U (en) * | 2018-11-06 | 2019-08-06 | 天元同创(天津)节能环保科技有限公司 | A kind of ORC produces blowing plant |
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Application publication date: 20200410 |