CN105888740A - Backpressure turbine and motor single-shaft combined drive connection structure - Google Patents
Backpressure turbine and motor single-shaft combined drive connection structure Download PDFInfo
- Publication number
- CN105888740A CN105888740A CN201610054194.2A CN201610054194A CN105888740A CN 105888740 A CN105888740 A CN 105888740A CN 201610054194 A CN201610054194 A CN 201610054194A CN 105888740 A CN105888740 A CN 105888740A
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- Prior art keywords
- back pressure
- pressure machine
- motor
- steam
- primary air
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Classifications
-
- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a backpressure turbine and motor single-shaft combined drive connection structure. A heat source steam pipeline is connected with a steam inlet of a backpressure turbine though a first compensator and a backpressure turbine inlet pressure adjusting door in sequence; and a steam outlet of the backpressure turbine is connected with an industrial steam heat supply pipeline through a backpressure turbine exhaust pipeline check door, a backpressure turbine outlet pressure adjusting door and a second compensator in sequence. An output shaft of the backpressure turbine is connected with the non-drive end of an output shaft of a motor through an SSS clutch. The drive end of the output shaft of the motor is connected with a large auxiliary machine device, and a backpressure turbine and motor combined drive large auxiliary machine device is obtained. The backpressure turbine and motor single-shaft combined drive connection structure has the beneficial effects that the backpressure turbine and the motor are coupled to a same rotating shaft through the SSS clutch, and the backpressure turbine and motor combined drive large auxiliary machine device is obtained. When heat supply throttling losses are reduced, on one hand, the equipment transformation investment is reduced substantially, and on the other hand, the problem about the running stability of a backpressure turbine independent drive auxiliary machine device can be successfully solved.
Description
Technical field
The present invention relates to Thermal generation unit field.Particularly to a kind of back pressure machine, motor single shaft associating drive connection
Structure.
Background technology
Needed for steam turbine heat supply and factory steam, heat energy energy level difference is relatively big, belongs to different quality heat energy.At vast thermoelectricity
Coproduction enterprise generally also exists by vapour parameter and the steam turbine unmatched problem of steam supply parameter.The most commonly used method is
High parameter thermal source is reduced to low parameter thermal source by the mode utilizing pressure and temperature reducing, and the method exists huge irreversible loss.
To this end, the method using back pressure machine technology to reduce irreversible loss high-quality thermal source becomes under new energy-conservation situation
An important directions for current energy conservation transformation of power plants.The main method of this renovation technique is to remove motor at present, sets up and opens
Wind symptom machine, equipment investment is bigger.
Document 1-4 all uses back pressure machine technology, with steam drive boiler side blower fan, by the steam of high parameter in order to drive wind
Machine, back pressure machine goes out vapour heating network steam supply, saves energy and the electric energy of blower fan of unit extraction for heat supply restriction loss.
Document 5 uses steam drive blower fan, replaces original motor and drives, to controls such as the startup of steam drive blower fan, adjustment
System is researched and analysed, and proves the reliability which steam drive blower fan is control system be.
Document 6 is to utilize steam drive blower fan, replaces motor and drives, and blower fan mates employing and slows down with the revolution of steam turbine
Case, the selection in emphasis narration steam drive air-introduced machine vapour source, the whereabouts problem of steam after steam turbine (back pressure machine) work done.
Document 7 utilizes steam drive blower fan, replaces motor and drives, carries out blower fan simultaneously on the basis of reducing blower fan electric energy
Transformation, emphasis narration once fine jade drives the selection in induced-draught fan vapour source.
Above-mentioned document 1-4 is the back pressure machine transformation carrying out boiler induced-draft fan, cancels id-motor simultaneously, increases and start
Air-introduced machine starts for unit ignition.But document 2-3 emphasis drives air-introduced machine and electronic air-introduced machine for back pressure machine after transformation
Switch the problem that tacks, and the protection of air-introduced machine interrelated logic improves perfect, and reality " utilizes SSS clutch to boiler
Air-introduced machine carries out back pressure machine transformation " research；Document 5 emphasis proves the reliability which steam drive blower fan is control system be；
After document 6-7 emphasis the narration selection in steam drive air-introduced machine vapour source, steam turbine (back pressure machine) work done, the whereabouts of steam selects.And
All it is not directed to " high temperature heat source restriction loss being converted to steam expansion merit, in order to drive motor, it is achieved vapour Electricity Federation is closed and driven "
Research.
Document:
[1] 1000MW extra-supercritical unit back-heating type back pressure machine drives air-introduced machine technical research and application.Wang Zhong canal, 2013
[2] research of back pressure type steam-driven induced draft fan undercapacity problem.Cai Jiecong etc., Zhejiang electric power 013, (01): 52-55
[3] back pressure type steam-driven induced draft fan debugging.Old little by force etc., China Power 2012, (08): 59-63
[4] back-heating type back pressure machine drives conceptual design and the engineering practice of air-introduced machine.The blower fan technology such as Chen Jian county, 2011,
(05): 54-57
[5] control strategy of gigawatt unit steam-driven induced draft fan and energy saving research.Wang Jun, power technology application 2013,
(01): 52-55
[6] the system selection of configuration of back pressure steam turbine drive air-introduced machine and energy-saving analysis.Lu Cheng, application energy technology, 2013,
(09): 22-25
[7] 1000WM coal unit boiler steam-driven air-introduced machine drives vapour source to select.Model Yongchun etc., China Power 2011, (12):
37-41。
Summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that one is easy to use, can retrieve heat supply restriction loss
Back pressure machine, motor single shaft associating drive connection structure.
The present invention is achieved through the following technical solutions:
The back pressure machine of the present invention, motor single shaft associating drive connection structure, it is characterised in that heat source stream pipeline is successively through the
One compensator and back pressure machine inlet pressure regulation door connect the steam inlet of back pressure machine, and the steam (vapor) outlet of back pressure machine sequentially passes through the back of the body
Press blow-off line non-return flap, back pressure machine outlet pressure regulation door and the second compensator connect factory steam heat supply pipeline, back pressure
The output shaft of machine connects the anti-drive end of motor output shaft by SSS clutch, and the drive end of motor output shaft connects big
Type subsidiary engine equipment, it is achieved the large-scale subsidiary engine equipment of driving combined by back pressure machine, motor.
Back pressure machine uses rear-mounted back pressure machine, and large-scale subsidiary engine equipment is primary air fan.
The invention has the beneficial effects as follows, utilize rear-mounted back pressure machine to replace original steam temperature-decreased pressure reducer, high temperature vapour source is saved
Stream loss is converted to steam expansion merit, in order to drive primary air fan.Back pressure machine and motor are passed through SSS Clutch Coupling same
In one rotating shaft, it is achieved back pressure machine, motor combine the large-scale subsidiary engine equipment of driving, while retrieving heat supply restriction loss, a side
Face reduction scrap build investment by a relatively large margin, on the other hand can successfully solve again back pressure machine and independently drive subsidiary engine equipment to run surely
Qualitative question.Solve unit extraction steam for factories parameter not mate with customer parameter and produce restriction loss problem.
Accompanying drawing explanation
Fig. 1 is present system schematic diagram.
In figure, 1 heat source stream pipeline, 2 compensator 3 back pressure machine inlet pressure regulation doors, 4 back pressure machines, 5 SSS clutches, 6
Primary air fan motor, 7 primary air fans, 8 back pressure machine blow-off line non-return flaps, 9 back pressure machine outlet pressures regulation doors, 10 mend
Repay device, 11 factory steam heat supply pipelines.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.
The back pressure machine of the present invention, motor single shaft associating drive connection structure, heat source stream pipeline 1 compensates through first successively
Device 2 and back pressure machine inlet pressure regulation door 3 connect the steam inlet of back pressure machine 4, and the steam (vapor) outlet of back pressure machine sequentially passes through back pressure
Machine blow-off line non-return flap 8, back pressure machine outlet pressure regulation door 9 and the second compensator 10 connect factory steam heat supply pipeline 11,
The output shaft of back pressure machine 4 connects the anti-drive end of motor 6 output shaft, the drive end of motor output shaft by SSS clutch 5
Connect large-scale subsidiary engine equipment, it is achieved the large-scale subsidiary engine equipment of driving combined by back pressure machine, motor.
Back pressure machine uses rear-mounted back pressure machine, and large-scale subsidiary engine equipment is primary air fan.
The back pressure machine of the present invention, motor single shaft associating drive connection structure, is installed on Thermal generation unit therrmodynamic system
In, steam turbine high-quality heat source stream is low again with vapour by pipeline this example of 1() pipeline compensator 2, back pressure machine inlet pressure is adjusted
Section door 3 enters back pressure machine entrance, drives large-scale subsidiary engine apparatus of load this example of 7(to be boiler First air by back pressure machine 4 expansion working
Machine), after work done, the weary gas after decrease temperature and pressure is by using as factory steam.
The back pressure machine of the present invention, motor single shaft associating drive connection structure, its capital equipment is rear-mounted back pressure machine, institute
State device and be installed on boiler primary air fan motor anti-drive end, connected by the engagement of SSS clutch between two power, it is achieved the back of the body
Press, electric motor dual-power Driven by Coaxial, can be changed into the restriction loss that former temperature-decreased pressure reducer produces back pressure machine expansion and do
Merit, and back pressure machine output shaft power is transmitted directly to primary air fan and is fully utilized, thus reach energy-saving and cost-reducing mesh
's.
Back pressure machine, motor utilize SSS clutch to carry out double dynamical power match.Low being not enough to drives once steam parameter
During blower fan, use motor-driven primary air fan.When steam parameter is suitable, conventional back pressure machine drives primary air fan.
The present invention need not remove original motor 6, but by installing SSS clutch 5 additional, motor anti-drive end installs additional
Extending, rotor transformation etc. realizes coaxially combining driving.
The high reliability that SSS clutch is introduced by Harbin 703, absorbed synchronizes automatic clutch (Synchrony-
Self-Shifting-Clunth), it is a kind of mechanical type mono-directional overrun clutch by gear original paper transmission power.Synchronize certainly
Dynamic clutch relies only on the change of two ends rotating speed and is automatically combined and disengages, and without any external control.
The present invention is also performed to boiler primary air fan and combines driving protection and Design of Monitoring and Control System, and design associating driving is opened
Stopping operation scheme, carry out correlation test after transformation, intensity is proved, and the type of cooling is improved, and determines the work such as relevant protection definite value, full
Foot steam turbine, outside coordination between heating system, back pressure machine system three control, it is ensured that safety and economic operation.
According to the heating parameter after extraction opening parameter and pressure and temperature reducing, measuring and calculating heat supply restriction loss degree and recoverable
Energy, the back pressure machine that apolegamy capacity, rotating speed is matched.
Back pressure machine installation site is determined according to field condition.
Formulate motor anti-drive end used by boiler primary air fan and install extending shaft technical scheme and rotor modification scheme additional.
High-speed high-power clutch is ordered according to back pressure machine output shaft power, rotating speed, axle journal physical dimension.
Boiler primary air fan combines driving protection and Design of Monitoring and Control System, establishment " boiler primary air fan associating actuation techniques
Code ".
Claims (4)
1. a back pressure machine, motor single shaft associating drive connection structure, it is characterised in that heat source stream pipeline is successively through first
Compensator and back pressure machine inlet pressure regulation door connect the steam inlet of back pressure machine, and the steam (vapor) outlet of back pressure machine sequentially passes through back pressure
Machine blow-off line non-return flap, back pressure machine outlet pressure regulation door and the second compensator connect factory steam heat supply pipeline, back pressure machine
Output shaft connected the anti-drive end of motor output shaft by SSS clutch, the drive end of motor output shaft connects large-scale
Subsidiary engine equipment, it is achieved the large-scale subsidiary engine equipment of driving combined by back pressure machine, motor.
A kind of back pressure machine the most according to claim 1, motor single shaft associating drive connection structure, it is characterised in that the back of the body
Press uses rear-mounted back pressure machine, and large-scale subsidiary engine equipment is primary air fan.
3. back pressure machine, motor single shaft described in claim 1 combine the driving method that drive connection structure is used, its
It is characterised by,
Back pressure machine, motor single shaft associating drive connection structure are installed in Thermal generation unit therrmodynamic system, steam turbine heat
Source steam enters back pressure machine steam inlet by heat source stream pipeline, the first compensator, back pressure machine inlet pressure regulation door, passes through
Back pressure machine expansion working drives large-scale subsidiary engine apparatus of load i.e. boiler primary air fan, and after work done, the weary gas after decrease temperature and pressure is by making
Use for factory steam；The restriction loss that former temperature-decreased pressure reducer produces is changed into back pressure machine expansion work, and back pressure machine is defeated
Go out shaft power to be transmitted directly to primary air fan and be fully utilized, thus reach energy-saving and cost-reducing purpose；
Back pressure machine, motor utilize SSS clutch to carry out double dynamical power match；Low being not enough to of steam parameter drives primary air fan
Time, use motor-driven primary air fan；When steam parameter is suitable, back pressure machine drives primary air fan；
Original motor need not be removed, but by installing SSS clutch additional, motor anti-drive end installs prolongation additional, and motor turns
Son transformation realizes coaxially combining driving.
The driving method that back pressure machine the most according to claim 3, motor single shaft associating drive connection structure is used, its
It is characterised by, comprises the following steps:
(1) according to the heating parameter after extraction opening parameter and pressure and temperature reducing, measuring and calculating heat supply restriction loss degree and recoverable
Energy, the back pressure machine that apolegamy capacity, rotating speed is matched；
(2) back pressure machine installation site is determined according to field condition；
(3) formulate motor anti-drive end used by boiler primary air fan and install extending shaft structural parameters and rotor transformation ginseng additional
Number；
(4) high-speed high-power SSS clutch is ordered according to back pressure machine output shaft power, rotating speed, axle journal physical dimension；
(5) design boiler primary air fan combines driving protection and monitoring system, it is achieved combine driving start stop operation, works out " boiler
Primary air fan associating actuation techniques code ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054194.2A CN105888740A (en) | 2016-01-27 | 2016-01-27 | Backpressure turbine and motor single-shaft combined drive connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054194.2A CN105888740A (en) | 2016-01-27 | 2016-01-27 | Backpressure turbine and motor single-shaft combined drive connection structure |
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| Publication Number | Publication Date |
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| CN105888740A true CN105888740A (en) | 2016-08-24 |
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ID=57013692
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| CN201610054194.2A Pending CN105888740A (en) | 2016-01-27 | 2016-01-27 | Backpressure turbine and motor single-shaft combined drive connection structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751093A (en) * | 2017-11-02 | 2019-05-14 | 长兴永能动力科技有限公司 | A kind of back pressure type Inflow Steam Turbine electricity generation system |
| CN110017184A (en) * | 2019-04-01 | 2019-07-16 | 华电电力科学研究院有限公司 | A kind of distributed top pressure power generation system and its control method based on nitrification enhancement |
| CN110056401A (en) * | 2018-12-31 | 2019-07-26 | 上海康恒环境股份有限公司 | A kind of system reducing garbage incinerating power plant station service power consumption rate |
| CN110118106A (en) * | 2019-04-18 | 2019-08-13 | 华电电力科学研究院有限公司 | A kind of distributed top pressure power generation system and working method based on efficient radial turbines |
| CN112523824A (en) * | 2020-11-23 | 2021-03-19 | 国能(泉州)热电有限公司 | Heat supply system and heat supply method |
| CN113513376A (en) * | 2021-04-30 | 2021-10-19 | 华电漯河发电有限公司 | Coaxial dual-drive control system and control method for motor of back press |
| CN114000924A (en) * | 2021-09-16 | 2022-02-01 | 国能(福州)热电有限公司 | Cogeneration centralized steam supply system and control method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751093A (en) * | 2017-11-02 | 2019-05-14 | 长兴永能动力科技有限公司 | A kind of back pressure type Inflow Steam Turbine electricity generation system |
| CN110056401A (en) * | 2018-12-31 | 2019-07-26 | 上海康恒环境股份有限公司 | A kind of system reducing garbage incinerating power plant station service power consumption rate |
| CN110017184A (en) * | 2019-04-01 | 2019-07-16 | 华电电力科学研究院有限公司 | A kind of distributed top pressure power generation system and its control method based on nitrification enhancement |
| CN110017184B (en) * | 2019-04-01 | 2024-02-27 | 华电电力科学研究院有限公司 | Distributed residual pressure power generation system based on reinforcement learning algorithm and control method thereof |
| CN110118106A (en) * | 2019-04-18 | 2019-08-13 | 华电电力科学研究院有限公司 | A kind of distributed top pressure power generation system and working method based on efficient radial turbines |
| CN112523824A (en) * | 2020-11-23 | 2021-03-19 | 国能(泉州)热电有限公司 | Heat supply system and heat supply method |
| CN113513376A (en) * | 2021-04-30 | 2021-10-19 | 华电漯河发电有限公司 | Coaxial dual-drive control system and control method for motor of back press |
| CN114000924A (en) * | 2021-09-16 | 2022-02-01 | 国能(福州)热电有限公司 | Cogeneration centralized steam supply system and control method thereof |
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Application publication date: 20160824 |
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