CN111365616B - Power type pressure regulating device - Google Patents
Power type pressure regulating device Download PDFInfo
- Publication number
- CN111365616B CN111365616B CN202010178018.6A CN202010178018A CN111365616B CN 111365616 B CN111365616 B CN 111365616B CN 202010178018 A CN202010178018 A CN 202010178018A CN 111365616 B CN111365616 B CN 111365616B
- Authority
- CN
- China
- Prior art keywords
- centrifugal compressor
- stage turbine
- pressure
- permanent magnet
- control valve
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention relates to a power type pressure regulating device and a using method thereof, belonging to the technical field of pressure pipeline pressure regulation. The system comprises a permanent magnet motor/generator, a single-stage turbine, a centrifugal compressor, a control valve, a planetary gear box and a 3s coupler; the single-stage turbine is used for realizing the pressure reduction function and generating electric power, and the pressure reduction amplitude is adjusted by adjusting the angle position of the turbine blade; the centrifugal compressor is used for realizing a small-amplitude supercharging function, and the supercharging amplitude is adjusted by adjusting the rotating speed of the permanent magnet motor. The 3s coupler is used for realizing the rapid switching of pressure reduction and pressure increase of the device, and the planetary gear box is used for adjusting the rotating speed and the torque, so that the normal operation of pressure reduction power generation and pressure increase is realized. Compared with the existing valve pressure regulating method, the invention can realize pressure reduction and small-amplitude pressure increase, has high pressure regulating precision and is basically not influenced by the parameters of the incoming flow working medium; the pressure potential energy can be converted into electric energy under the condition of overlarge pressure reduction amplitude requirement and can be utilized, and energy waste is avoided.
Description
Technical Field
The invention relates to a power type pressure regulating device, and belongs to the technical field of pressure pipeline pressure regulation.
Background
At present, in the power industry, systems related to working media such as steam, natural gas and the like almost have requirements on pressure regulation in pipelines, and at present, the pressure regulation is usually carried out on the systems of the steam, the natural gas and the like by adopting a valve pressure reduction method. However, if the pressure regulating range is too large, energy waste is caused by adopting a valve pressure reducing method. And too small pressure reduction amplitude is limited by the working condition change of incoming flow working medium parameters, and the working medium parameters cannot meet the use requirements if the working medium parameters are too low under low load. Meanwhile, the condition of unstable pressure regulation also exists by adopting a temperature and pressure reducing mode, and the overall performance of the valve pressure regulating method cannot completely meet the requirements of the current production process.
Disclosure of Invention
The invention aims to solve the technical problems that the conventional valve pressure reducing device is high in energy consumption and cannot well meet the requirement of pressure regulation in a pipeline in the conventional production process.
In order to solve the problems, the technical scheme adopted by the invention is to provide a power type pressure regulating device which comprises a permanent magnet motor/generator, a single-stage turbine, a centrifugal compressor, a control valve, an air inlet pipeline, an air outlet pipeline and a 3s coupler; a single-stage turbine and centrifugal compressor are arranged between the air inlet pipeline and the exhaust pipeline in parallel; the pipeline for passing in and out of the single-stage turbine is provided with a control valve; a control valve is arranged on a pipeline for entering and exiting the centrifugal compressor; the permanent magnet motor/generator, the single-stage turbine and the centrifugal compressor are arranged on the same shaft system, and the permanent magnet motor/generator is arranged between the single-stage turbine and the centrifugal compressor; the single-stage turbine is connected with the permanent magnet motor/generator through a first 3s coupler; the centrifugal compressor is connected with the permanent magnet motor/generator through a second 3s coupler.
Preferably, a first control valve is arranged on an inlet pipeline of the single-stage turbine, and a second control valve is arranged on an outlet pipeline of the single-stage turbine.
Preferably, a third control valve is arranged on an inlet pipeline of the centrifugal compressor, and a fourth control valve is arranged on an outlet pipeline of the centrifugal compressor.
Preferably, the permanent magnet motor/generator, the single-stage turbine and the centrifugal compressor are provided with a main shaft of the same shafting.
Preferably, a first planetary gearbox is arranged between the single-stage turbine and the first 3s coupling.
Preferably, a second planetary gear box is arranged between the centrifugal compressor and the second 3s coupler.
The invention also provides a using method of the power type pressure regulating device, which comprises the following steps:
step 1: when pressure reduction is needed, opening a control valve of an inlet and an outlet of the single-stage turbine, closing the control valve of the inlet and the outlet of the centrifugal compressor, disconnecting a 3s coupler connected with the centrifugal compressor, and connecting the 3s coupler connected with the single-stage turbine;
step 2: a pressure regulating working medium is introduced into the air inlet pipeline, and the permanent magnet motor/generator operates as a generator at the moment, so that the purpose of pressure regulation is achieved while power generation is carried out;
and step 3: the working medium flows through the single-stage turbine, the pressure reduction amplitude is adjusted by adjusting the angle position of the turbine blade, electric power is generated, and the working medium flows out from the outlet of the single-stage turbine to finish pressure reduction operation;
and 4, step 4: when small-amplitude boosting is needed, the control valves of the inlet and the outlet of the single-stage turbine are closed, the control valves of the inlet and the outlet of the centrifugal compressor are opened, the 3s coupler connected with the single-stage turbine is separated, and the 3s coupler connected with the centrifugal compressor is connected;
and 5: a pressure regulating working medium is introduced into the air inlet pipeline, and the permanent magnet motor/generator operates as a motor at the moment;
step 6: working medium flows through the centrifugal compressor, the boosting amplitude is adjusted by adjusting the rotating speed of the motor, and the working medium flows out from the outlet of the centrifugal compressor to finish boosting operation.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can realize pressure reduction and small-amplitude pressure increase, has high pressure regulation precision and is basically not influenced by the parameters of the incoming flow working medium.
2. The invention can convert the pressure potential energy into electric energy under the condition of overlarge pressure reduction amplitude requirement, and utilizes the electric energy, thereby avoiding energy waste.
Drawings
Fig. 1 is a schematic structural diagram of a power type pressure regulating device provided by the invention.
Reference numerals: 1. the permanent magnet motor/generator 2, the single-stage turbine 3, the centrifugal compressor 4, the control valve I5, the control valve II 6, the control valve III 7, the control valve IV 8, the air inlet pipeline 9, the air outlet pipeline 10, the main shaft 11, the planetary gear box I12.3 s, the coupling I13.3 s, the coupling II 14 and the planetary gear box II;
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1, the present invention provides a power type pressure regulating device, which comprises a permanent magnet motor/generator 1, a single-stage turbine 2, a centrifugal compressor 3, a control valve, an air inlet pipeline 8, an air outlet pipeline 9 and a 3s coupler; a single-stage turbine 2 and a centrifugal compressor 3 are arranged between the air inlet pipeline 8 and the air outlet pipeline 9 in parallel; a control valve is arranged on a pipeline for entering and exiting the single-stage turbine 2; a control valve is arranged on a pipeline for entering and exiting the centrifugal compressor 3; the permanent magnet motor/generator 1, the single-stage turbine 2 and the centrifugal compressor 3 are arranged on the same shaft system, and the permanent magnet motor/generator 1 is arranged between the single-stage turbine 2 and the centrifugal compressor 3; the single-stage turbine 2 is connected with the permanent magnet motor/generator 1 through a 3s coupling I12; the centrifugal compressor 3 is connected with the permanent magnet motor/generator 1 through a second 3s coupling 13. The inlet pipeline of the single-stage turbine 2 is provided with a first control valve 4, and the outlet pipeline of the single-stage turbine 2 is provided with a second control valve 5. And a third control valve 6 is arranged on an inlet pipeline of the centrifugal compressor 3, and a fourth control valve 7 is arranged on an outlet pipeline of the centrifugal compressor. The permanent magnet motor/generator 1, the single-stage turbine 2 and the centrifugal compressor 3 are provided with a main shaft 10 of the same shafting. A planetary gearbox 11 is arranged between the single-stage turbine 2 and the 3s coupling 12. A second planetary gear box 14 is arranged between the centrifugal compressor 3 and the second 3s coupler 13. The single-stage turbine 2 is used for realizing a pressure reduction function and generating electric power, and the pressure reduction amplitude is adjusted by adjusting the angle position of a turbine blade; the centrifugal compressor 3 is used for realizing a small-amplitude supercharging function, and the supercharging amplitude is adjusted by adjusting the rotating speed of the permanent magnet motor 1. The first 3s coupler 12 and the second 3s coupler 13 are used for realizing rapid switching of pressure reduction and pressure increase of the device, and the first planetary gear box 11 and the second planetary gear box 14 are used for adjusting rotating speed and torque to realize normal operation of pressure reduction power generation and pressure increase.
The specific working method of the device of the invention is as follows:
step 1: when pressure reduction is needed, the control valves 4 and 5 at the inlet and the outlet of the single-stage turbine 2 are opened, the control valves 6 and 7 at the inlet and the outlet of the centrifugal compressor 3 are closed, the 3s coupling 13 connected with the centrifugal compressor 3 is disconnected, and the 3s coupling 12 connected with the single-stage turbine 2 is connected.
Step 2: the air inlet pipeline 8 is filled with a pressure regulating working medium, and the permanent magnet motor/generator 1 operates as a generator at the moment.
And step 3: the working medium flows through the single-stage turbine 2, the pressure reduction amplitude is adjusted by adjusting the angle position of the turbine blade, electric power is generated, and the working medium flows out of the outlet of the single-stage turbine 2 to the exhaust pipeline 9 to complete pressure reduction operation.
And 4, step 4: when small-amplitude boosting is needed, the control valves 4 and 5 of the inlet and the outlet of the single-stage turbine 2 are closed, the control valves 6 and 7 of the inlet and the outlet of the centrifugal compressor 3 are opened, the 3s coupler 12 connected with the single-stage turbine 2 is separated, and the 3s coupler 13 connected with the centrifugal compressor 3 is connected.
And 5: the air inlet pipeline 8 is filled with a pressure regulating working medium, and the permanent magnet motor/generator 1 operates as a motor at the moment.
Step 6: working medium flows through the centrifugal compressor 3, the boosting amplitude is adjusted by adjusting the rotating speed of the motor, and the working medium flows out of the outlet of the centrifugal compressor 3 to the exhaust pipeline 9 to finish boosting operation.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (2)
1. A power type pressure regulating device is characterized in that: the system comprises a permanent magnet motor/generator, a single-stage turbine, a centrifugal compressor, a control valve, an air inlet pipeline, an exhaust pipeline and a 3s coupler; a single-stage turbine and centrifugal compressor are arranged between the air inlet pipeline and the exhaust pipeline in parallel; the pipeline for passing in and out of the single-stage turbine is provided with a control valve; a control valve is arranged on a pipeline for entering and exiting the centrifugal compressor; the permanent magnet motor/generator, the single-stage turbine and the centrifugal compressor are arranged on the same shaft system, and the permanent magnet motor/generator is arranged between the single-stage turbine and the centrifugal compressor; the single-stage turbine is connected with the permanent magnet motor/generator through a first 3s coupler; the centrifugal compressor is connected with the permanent magnet motor/generator through a second 3s coupler; a first control valve is arranged on an inlet pipeline of the single-stage turbine, and a second control valve is arranged on an outlet pipeline of the single-stage turbine; a third control valve is arranged on an inlet pipeline of the centrifugal compressor, and a fourth control valve is arranged on an outlet pipeline of the centrifugal compressor; the permanent magnet motor/generator, the single-stage turbine and the centrifugal compressor are provided with main shafts of the same shafting; a first planetary gear box is arranged between the single-stage turbine and the first 3s coupler; and a second planetary gear box is arranged between the centrifugal compressor and the second 3s coupler.
2. The method of using a powered pressure regulating device of claim 1, comprising the steps of:
step 1: when pressure reduction is needed, opening a control valve of an inlet and an outlet of the single-stage turbine, closing the control valve of the inlet and the outlet of the centrifugal compressor, disconnecting a 3s coupler connected with the centrifugal compressor, and connecting the 3s coupler connected with the single-stage turbine;
step 2: a pressure regulating working medium is introduced into the air inlet pipeline, and the permanent magnet motor/generator operates as a generator at the moment, so that the purpose of pressure regulation is achieved while power generation is carried out;
and step 3: the working medium flows through the single-stage turbine, the pressure reduction amplitude is adjusted by adjusting the angle position of the turbine blade, electric power is generated, and the working medium flows out from the outlet of the single-stage turbine to finish pressure reduction operation;
and 4, step 4: when small-amplitude boosting is needed, the control valves of the inlet and the outlet of the single-stage turbine are closed, the control valves of the inlet and the outlet of the centrifugal compressor are opened, the 3s coupler connected with the single-stage turbine is separated, and the 3s coupler connected with the centrifugal compressor is connected;
and 5: a pressure regulating working medium is introduced into the air inlet pipeline, and the permanent magnet motor/generator operates as a motor at the moment;
step 6: working medium flows through the centrifugal compressor, the boosting amplitude is adjusted by adjusting the rotating speed of the motor, and the working medium flows out from the outlet of the centrifugal compressor to finish boosting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010178018.6A CN111365616B (en) | 2020-03-13 | 2020-03-13 | Power type pressure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010178018.6A CN111365616B (en) | 2020-03-13 | 2020-03-13 | Power type pressure regulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111365616A CN111365616A (en) | 2020-07-03 |
| CN111365616B true CN111365616B (en) | 2022-01-07 |
Family
ID=71207214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010178018.6A Active CN111365616B (en) | 2020-03-13 | 2020-03-13 | Power type pressure regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111365616B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223212A (en) * | 1988-07-13 | 1990-01-25 | Toshiba Corp | Coal gasifying combined cycle power generation plant |
| JPH07305637A (en) * | 1994-05-12 | 1995-11-21 | Sumitomo Metal Ind Ltd | Pressure reducing facility for gas pipe line |
| CN1143171A (en) * | 1996-05-20 | 1997-02-19 | 叶澄国 | Low pressure rear-end regulating peak gas pipe net system |
| CN2924090Y (en) * | 2006-03-20 | 2007-07-18 | 陕西鼓风机（集团）有限公司 | Blast-furnace blower group of coaxial driven by coal-gas turbine and motor |
| CN105757455A (en) * | 2016-04-28 | 2016-07-13 | 华电郑州机械设计研究院有限公司 | Natural gas differential pressure energy recovery unit device |
| CN107237656A (en) * | 2017-07-26 | 2017-10-10 | 西安交通大学 | A kind of supercritical carbon dioxide centrifugal compressor and axial-flow turbine coaxial configuration |
| CN207673387U (en) * | 2017-12-01 | 2018-07-31 | 中国科学院工程热物理研究所 | A kind of expansion unit for high-power order compression air energy storage systems |
-
2020
- 2020-03-13 CN CN202010178018.6A patent/CN111365616B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223212A (en) * | 1988-07-13 | 1990-01-25 | Toshiba Corp | Coal gasifying combined cycle power generation plant |
| JPH07305637A (en) * | 1994-05-12 | 1995-11-21 | Sumitomo Metal Ind Ltd | Pressure reducing facility for gas pipe line |
| CN1143171A (en) * | 1996-05-20 | 1997-02-19 | 叶澄国 | Low pressure rear-end regulating peak gas pipe net system |
| CN2924090Y (en) * | 2006-03-20 | 2007-07-18 | 陕西鼓风机（集团）有限公司 | Blast-furnace blower group of coaxial driven by coal-gas turbine and motor |
| CN105757455A (en) * | 2016-04-28 | 2016-07-13 | 华电郑州机械设计研究院有限公司 | Natural gas differential pressure energy recovery unit device |
| CN107237656A (en) * | 2017-07-26 | 2017-10-10 | 西安交通大学 | A kind of supercritical carbon dioxide centrifugal compressor and axial-flow turbine coaxial configuration |
| CN207673387U (en) * | 2017-12-01 | 2018-07-31 | 中国科学院工程热物理研究所 | A kind of expansion unit for high-power order compression air energy storage systems |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111365616A (en) | 2020-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11329583B2 (en) | Generalized frequency conversion system for steam turbine generator unit | |
| US20130318965A1 (en) | Supercharged Combined Cycle System With Air Flow Bypass To HRSG And Hydraulically Coupled Fan | |
| CN203175635U (en) | Air compression energy storage system | |
| CN103398005B (en) | The pure condensate formula small turbine drive feed-water pump of frequency conversion generator speed governing and method | |
| CN104005802A (en) | Compressed air energy storage system | |
| CN106640245B (en) | Utilize the natural gas pipe network pressure energy recovery method and device of piston expansion engine | |
| CN201884082U (en) | Driving system utilizing waste heat steam | |
| CN109441560B (en) | Air inlet adjusting system and method of expansion generator | |
| CN103397917B (en) | The back pressure type small turbine drive feed-water pump of frequency conversion generator speed governing and method | |
| CN106523920B (en) | A kind of pipe network pressure energy method and device using turbo-expander | |
| CN107237657B (en) | It is a kind of can peak regulation energy storage gas-steam combined power device and its control method | |
| CN115117394A (en) | Air compressor arrangement and fuel cell arrangement comprising an air compressor arrangement | |
| CN110656991A (en) | Injection gas distribution thermoelectric decoupling mode based on axial thrust balance and reheating balance | |
| CN110118106A (en) | A kind of distributed top pressure power generation system and working method based on efficient radial turbines | |
| CN210509309U (en) | Steam complementary energy utilization coupling steam extraction heat supply system for thermoelectric unit electric power peak regulation | |
| CN112290057A (en) | Fuel cell air supply system based on turbocharging and control method thereof | |
| CN111365616B (en) | Power type pressure regulating device | |
| CN210245632U (en) | Fuel cell gas supply system based on turbocharging | |
| CN115788612A (en) | Pipeline system and start-stop mode of differential pressure turboexpander set | |
| CN114439559B (en) | Heat supply method for switching condensing type and high back pressure of steam turbine generator set | |
| CN202597133U (en) | High-speed low-flow centrifugal compressor unit | |
| CN210889042U (en) | Steam extraction back pressure type water feeding pump small steam turbine system with high-efficiency hydraulic speed regulating device | |
| CN212898634U (en) | Steam pressure difference turbine expansion power generation system | |
| CN214997831U (en) | Natural air pressure difference power generation and cold energy utilization system | |
| CN210178424U (en) | Distributed residual pressure power generation system based on efficient radial turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |