CN110894796A - Steam extraction back pressure type small steam turbine control and regulation system and method with power balance generator - Google Patents
Steam extraction back pressure type small steam turbine control and regulation system and method with power balance generator Download PDFInfo
- Publication number
- CN110894796A CN110894796A CN201911076777.5A CN201911076777A CN110894796A CN 110894796 A CN110894796 A CN 110894796A CN 201911076777 A CN201911076777 A CN 201911076777A CN 110894796 A CN110894796 A CN 110894796A
- Authority
- CN
- China
- Prior art keywords
- small
- steam
- turbine
- pump
- water feeding
- 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.)
- Pending
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 116
- 230000001105 regulatory effect Effects 0.000 claims abstract description 80
- 230000001172 regenerating effect Effects 0.000 claims abstract description 15
- 230000001276 controlling effect Effects 0.000 claims description 16
- 238000010248 power generation Methods 0.000 claims description 7
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Images
Classifications
-
- 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- 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
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/345—Control or safety-means particular thereto
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
The invention relates to a steam extraction back pressure type small steam turbine control and regulation system with a power balance generator and a method thereof, wherein one end of a small steam turbine of a water supply pump of the system is connected with the small power balance generator and is coaxially driven; the other end of the small steam turbine of the feed pump is connected with the input end of a speed regulating device of the feed pump, and the output end of the speed regulating device of the feed pump is connected with the input end of the feed pump; the driving steam of the small turbine of the water feeding pump enters the adjusting end of the small turbine of the water feeding pump through the steam inlet adjusting valve of the small turbine; the middle steam extraction of the small steam turbine of the water supply pump is supplied to the regenerative heater through the regenerative steam extraction regulating valve; the exhaust steam of the small turbine of the water feeding pump is controlled by an exhaust steam regulating valve; the rotating speed control module is connected with a steam inlet regulating valve of the small steam turbine and a water feeding pump speed regulating device. The invention can realize the full-open operation of the inlet steam adjusting valve when the small steam turbine normally operates, thereby reducing the steam inlet throttling loss, improving the efficiency of the small steam turbine by about 4-5 percent and realizing the purposes of energy saving and consumption reduction.
Description
Technical Field
The invention belongs to the technical field of thermal power generation, and particularly relates to a steam extraction back pressure type small steam turbine control and regulation system with a power balance generator and a method.
Background
With higher requirements on the coal-electric unit on energy conservation and emission reduction, innovative research is carried out in the industry aiming at a thermodynamic system of a high-parameter ultra-supercritical unit, particularly a secondary reheating unit.
Because of the improvement of parameters and the use of secondary reheating circulation, the degree of superheat of the regenerative steam extraction of the unit is greatly increased, and a double-unit regenerative system of the steam extraction back pressure type water feeding pump steam turbine unit is provided. Namely, a small turbine driving a water feeding pump is connected with a partial regenerative heater at the same time, and is synchronously pumped back for regenerative heating with a host.
The system has the advantage of fully utilizing the superheat degree of the regenerative extraction steam. But at the same time, the difficulty of operation is increased, and particularly, a new requirement is put on how to ensure energy-saving operation.
Meanwhile, the system is more complicated to regulate and operate compared with a traditional small steam turbine of a feed pump. How to ensure the energy-saving effect of the double-machine regenerative system, the operation control and adjustment method is especially important.
Disclosure of Invention
The invention aims to provide a steam extraction back pressure type small steam turbine control and regulation system and method with a power balance generator, which can realize the stable control of the flow of a small steam turbine driven feed pump and ensure that the throttling regulation loss of the steam turbine is reduced.
The invention provides a steam extraction back pressure type small steam turbine control and regulation system with a power balance generator, which comprises a water feeding pump small steam turbine, a power balance small generator, a water feeding pump speed regulation device, a small steam turbine steam inlet regulation valve, a steam exhaust regulation valve, a backheating steam extraction regulation valve and a rotating speed control module, wherein the water feeding pump small steam turbine is connected with the water feeding pump small steam turbine;
one end of the small water feeding pump turbine is connected with the small power balance generator and is coaxially driven, and the residual power for driving the small water feeding pump turbine is used for generating power by the small power balance generator;
the other end of the small steam turbine of the water feed pump is connected with the input end of the speed regulating device of the water feed pump, and the output end of the speed regulating device of the water feed pump is connected with the input end of the water feed pump and is used for coaxially driving the water feed pump by taking the small steam turbine of the water feed pump as a power source through the speed regulating device of the water feed pump;
the driving steam of the small turbine of the water feeding pump enters the adjusting end of the small turbine of the water feeding pump through the steam inlet adjusting valve of the small turbine; the middle steam extraction of the small steam turbine of the water supply pump is supplied to the regenerative heater through the regenerative steam extraction regulating valve; the exhaust steam of the small turbine of the water feeding pump is controlled by an exhaust steam regulating valve;
the rotating speed control module is connected with the small turbine steam inlet regulating valve and used for controlling the steam inlet quantity by controlling the opening of the small turbine steam inlet regulating valve based on the difference value between the water supply flow demand and the actual water supply flow so as to adjust the rotating speed or the output power of the small turbine of the water supply pump and control the rotating speed or the flow of the water supply pump;
the rotating speed control module is connected with the water feeding pump speed regulating device and used for controlling the rotating speed and the flow of the water feeding pump through the water feeding pump speed regulating device based on the difference value of the water feeding flow demand and the actual water feeding flow.
The invention also provides a method for controlling and adjusting the steam extraction back pressure type small steam turbine by applying the steam extraction back pressure type small steam turbine control and adjustment system with the power balance generator, which comprises the following steps:
when the feed pump speed regulator is constant speed, namely, non-variable speed, and the feed pump small turbine is variable speed, the difference between the feed water flow demand and the actual feed water flow is judged in the rotating speed control module and is converted into a rotating speed instruction of the feed pump small turbine through a function relation, and the instruction is used for controlling the opening degree of a small turbine steam inlet regulating valve, namely, the steam inlet quantity, so that the rotating speed or the output power of the feed pump small turbine is regulated, and the rotating speed or the flow of the feed pump is driven; under the normal operation condition, the small steam turbine steam inlet regulating valve is kept to operate fully, the residual power of the unit is balanced to the external power generation through the small power balance generator, and the back pressure of the small steam turbine is regulated and controlled abnormally through the steam exhaust regulating valve;
when the small turbine of the water feeding pump is at a constant speed and the speed of the speed regulating device of the water feeding pump can be regulated, the difference value between the water feeding flow demand and the actual water feeding flow is judged in the rotating speed control module and is converted into a rotating speed instruction of the speed regulating device of the water feeding pump through a functional relation, so that the rotating speed and the flow of the coaxially driven water feeding pump can be regulated; at the moment, a small turbine steam inlet regulating valve of a small turbine of the water supply pump keeps full-open operation, meanwhile, the residual power of the unit is balanced for external power generation through a small power balance generator, and the back pressure of the small turbine is abnormally regulated and controlled through a steam exhaust regulating valve.
By means of the scheme, the steam extraction back pressure type small steam turbine control and regulation system and method with the power balance generator can achieve full-open operation of the inlet steam inlet regulating valve when the small steam turbine normally operates, further reduce steam inlet throttling loss, improve the efficiency of the small steam turbine by about 4-5%, and achieve the purposes of energy conservation and consumption reduction.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a steam extraction back pressure type small steam turbine control and regulation system with a power balance generator.
Reference numbers in the figures:
1-a small steam turbine of a water supply pump; 2-power balance small generator; 3-a water supply pump; 4-a feed pump speed regulating device; 5-steam turbine admission regulating valve; 6-exhaust steam regulating valve; 7-backheating steam extraction regulating valve; 8-rotating speed control module.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the present embodiment provides a steam extraction back-pressure type small steam turbine control and regulation system with a power balance generator, which includes a water feed pump small steam turbine 1, a power balance small generator 2, a water feed pump 3, a water feed pump speed regulation device 4, a small steam turbine steam inlet regulation valve 5, a steam exhaust regulation valve 6, a regenerative steam extraction regulation valve 7, and a rotation speed control module 8;
one end of a small water feeding pump turbine 1 is connected with the small power balance generator 2 and is coaxially driven, and the residual power for driving the small water feeding pump turbine is used for generating power by the small power balance generator 2;
the other end of the small water feeding pump turbine 1 is connected with the input end of a water feeding pump speed regulating device 4, the output end of the water feeding pump speed regulating device 4 is connected with the input end of a water feeding pump 3, and the small water feeding pump turbine 1 is used as a power source to coaxially drive the water feeding pump 3 through the water feeding pump speed regulating device 4;
the driving steam of the small turbine 1 of the feed pump enters the adjusting end of the small turbine 1 of the feed pump through the small turbine steam inlet adjusting valve 5; the middle steam extraction of the small steam turbine 1 of the water supply pump is supplied to the regenerative heater through the regenerative steam extraction regulating valve 7; the exhaust steam of the small turbine 1 of the water feeding pump is controlled by an exhaust steam regulating valve 6;
the rotating speed control module 8 is connected with the small turbine steam inlet regulating valve 5 and is used for controlling the steam inlet quantity by controlling the opening of the small turbine steam inlet regulating valve 5 based on the difference value between the water supply flow demand and the actual water supply flow so as to adjust the rotating speed or the output power of the small turbine 1 of the water supply pump and control the rotating speed or the flow of the water supply pump 3;
the rotating speed control module 8 is connected with the water feeding pump speed regulating device 4 and used for controlling the rotating speed and the flow of the water feeding pump 3 through the water feeding pump speed regulating device 4 based on the difference value of the water feeding flow demand and the actual water feeding flow.
The method for controlling and adjusting the steam extraction back pressure type small steam turbine of the system with the power balance generator comprises the following steps:
firstly, when the water feeding pump speed regulating device 4 is in a constant speed state, namely, the speed is not variable, and the water feeding pump small turbine 1 is variable, the difference value between the water feeding flow demand and the actual water feeding flow is judged in the rotating speed control module 8 and is converted into a rotating speed instruction of the water feeding pump small turbine 1 through a function relation, and the instruction can be used for controlling the opening degree of the small turbine steam inlet regulating valve 5, namely, the steam inlet quantity, so that the rotating speed or the output power of the water feeding pump small turbine 1 is regulated, and the rotating speed or the flow of the water feeding pump 3 is driven; under the normal operation condition, the steam inlet regulating valve 5 of the small steam turbine can be kept to operate fully, the residual power of the unit can balance external power generation through the small power balance generator 2, and the back pressure abnormality of the small steam turbine can be regulated and controlled through the steam exhaust regulating valve 6. And secondly, when the small turbine 1 of the feed pump is at a constant speed and the speed of the feed pump speed regulating device 4 can be regulated, the difference between the feed water flow demand and the actual feed water flow is judged in the rotating speed control module 8 and is converted into a rotating speed instruction of the feed pump speed regulating device 4 through a functional relation, so that the rotating speed and the flow of the coaxially driven feed pump 3 are regulated. At the moment, a small turbine steam inlet regulating valve 5 of the small turbine 1 of the water feeding pump can be kept in full-open operation, meanwhile, the residual power of the unit can be balanced to external power generation through the small power balance generator 2, and the back pressure of the small turbine can be regulated and controlled through the steam exhaust regulating valve 6 in an abnormal mode. The above requirements satisfy formulas (1) to (3):
W1＝W2+W4+W6+W7(1)
W1＝W5(2)
W4＝W3/η34(3)
in the formula, W1、W2、W3、W4、W5、W6、W7Respectively a small turbine feed pump 1η, η34The transmission power between the feed pump 3 and the feed pump regulating device 4.
In the starting and stopping stage of the whole set of unit, when the small turbine 1 of the water feeding pump does not feed steam, namely the steam inlet regulating valve 5 of the small turbine is closed, in order to ensure a certain water feeding flow, namely the water feeding pump 3 can still work, the small generator 2 with power balance can be connected to the grid to be in a motor mode, and the water feeding pump 3 is coaxially driven to provide necessary water feeding flow.
By the control and regulation system and the control and regulation method, the inlet steam inlet regulating valve 5 can be operated fully when the small steam turbine operates normally, so that the steam inlet throttling loss is reduced, the efficiency of the small steam turbine is improved by about 4-5%, and the purposes of energy conservation and consumption reduction are achieved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The small steam turbine control and regulation system with the power balance generator is characterized by comprising a small water feeding pump steam turbine, a small power balance generator, a water feeding pump speed regulation device, a small steam turbine steam inlet regulation valve, a steam exhaust regulation valve, a backheating steam extraction regulation valve and a rotating speed control module;
one end of the small water feeding pump turbine is connected with the small power balance generator and is coaxially driven, and the residual power for driving the small water feeding pump turbine is used for generating power by the small power balance generator;
the other end of the small steam turbine of the water feed pump is connected with the input end of the speed regulating device of the water feed pump, and the output end of the speed regulating device of the water feed pump is connected with the input end of the water feed pump and used for coaxially driving the water feed pump by using the small steam turbine of the water feed pump as a power source through the speed regulating device of the water feed pump;
the driving steam of the small turbine of the water feeding pump enters the adjusting end of the small turbine of the water feeding pump through the steam inlet adjusting valve of the small turbine; the middle steam extraction of the small turbine of the water supply pump is supplied to the regenerative heater through the regenerative steam extraction regulating valve; the exhaust steam of the small turbine of the water feeding pump is controlled by the exhaust steam regulating valve;
the rotating speed control module is connected with the small turbine steam inlet regulating valve and is used for controlling the steam inlet quantity by controlling the opening of the small turbine steam inlet regulating valve based on the difference value between the water supply flow demand and the actual water supply flow, so as to adjust the rotating speed or the output power of the small turbine of the water supply pump and control the rotating speed or the flow of the water supply pump;
the rotating speed control module is connected with the water feeding pump speed regulating device and used for controlling the rotating speed and the flow of the water feeding pump through the water feeding pump speed regulating device based on the difference value of the water feeding flow demand and the actual water feeding flow.
2. A method for controlling and regulating a steam extraction back-pressure small steam turbine by using the steam extraction back-pressure small steam turbine controlling and regulating system with the power balance generator in the claim 1, which comprises the following steps:
when the feed pump speed regulator is constant speed, namely, non-variable speed, and the feed pump small turbine is variable speed, the difference between the feed water flow demand and the actual feed water flow is judged in the rotating speed control module and is converted into a rotating speed instruction of the feed pump small turbine through a function relation, and the instruction is used for controlling the opening degree of a small turbine steam inlet regulating valve, namely, the steam inlet quantity, so that the rotating speed or the output power of the feed pump small turbine is regulated, and the rotating speed or the flow of the feed pump is driven; under the normal operation condition, the small steam turbine steam inlet regulating valve is kept to operate fully, the residual power of the unit is balanced to the external power generation through the small power balance generator, and the back pressure of the small steam turbine is regulated and controlled abnormally through the steam exhaust regulating valve;
when the small turbine of the water feeding pump is at a constant speed and the speed of the speed regulating device of the water feeding pump can be regulated, the difference value between the water feeding flow demand and the actual water feeding flow is judged in the rotating speed control module and is converted into a rotating speed instruction of the speed regulating device of the water feeding pump through a functional relation, so that the rotating speed and the flow of the coaxially driven water feeding pump can be regulated; at the moment, a small turbine steam inlet regulating valve of a small turbine of the water supply pump keeps full-open operation, meanwhile, the residual power of the unit is balanced for external power generation through a small power balance generator, and the back pressure of the small turbine is abnormally regulated and controlled through a steam exhaust regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076777.5A CN110894796A (en) | 2019-11-06 | 2019-11-06 | Steam extraction back pressure type small steam turbine control and regulation system and method with power balance generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076777.5A CN110894796A (en) | 2019-11-06 | 2019-11-06 | Steam extraction back pressure type small steam turbine control and regulation system and method with power balance generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110894796A true CN110894796A (en) | 2020-03-20 |
Family
ID=69787992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911076777.5A Pending CN110894796A (en) | 2019-11-06 | 2019-11-06 | Steam extraction back pressure type small steam turbine control and regulation system and method with power balance generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110894796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968638A (en) * | 2021-02-04 | 2021-06-15 | 中国神华能源股份有限公司国华电力分公司 | Water supply pump steam turbine system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988507A (en) * | 1995-09-20 | 1997-03-31 | Hitachi Ltd | Control method of turbine for water supply pump and controller thereof |
| CN103397917A (en) * | 2013-08-13 | 2013-11-20 | 中国电力工程顾问集团华东电力设计院 | Back-pressure car driving water-feeding pump system and method adopting variable-frequency power generator for speed regulation |
| CN204851340U (en) * | 2015-06-24 | 2015-12-09 | 中国电力工程顾问集团华东电力设计院有限公司 | Little steam turbine of backpressure formula of dc generator speed governing drives for water pump system and disposes steam electric power unit of this system |
| CN108278131A (en) * | 2017-01-06 | 2018-07-13 | 山东电力工程咨询院有限公司 | A kind of power-balance power generation vapour electricity coaxial pair of drive feed-water pump and method |
| CN108868909A (en) * | 2018-06-29 | 2018-11-23 | 东方电气集团东方汽轮机有限公司 | A kind of two-shipper backheat small turbine start-up mode |
| US20190071992A1 (en) * | 2016-04-13 | 2019-03-07 | Weizhong Feng | Generalized frequency conversion system for steam turbine generator unit |
-
2019
- 2019-11-06 CN CN201911076777.5A patent/CN110894796A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988507A (en) * | 1995-09-20 | 1997-03-31 | Hitachi Ltd | Control method of turbine for water supply pump and controller thereof |
| CN103397917A (en) * | 2013-08-13 | 2013-11-20 | 中国电力工程顾问集团华东电力设计院 | Back-pressure car driving water-feeding pump system and method adopting variable-frequency power generator for speed regulation |
| CN204851340U (en) * | 2015-06-24 | 2015-12-09 | 中国电力工程顾问集团华东电力设计院有限公司 | Little steam turbine of backpressure formula of dc generator speed governing drives for water pump system and disposes steam electric power unit of this system |
| US20190071992A1 (en) * | 2016-04-13 | 2019-03-07 | Weizhong Feng | Generalized frequency conversion system for steam turbine generator unit |
| CN108278131A (en) * | 2017-01-06 | 2018-07-13 | 山东电力工程咨询院有限公司 | A kind of power-balance power generation vapour electricity coaxial pair of drive feed-water pump and method |
| CN108868909A (en) * | 2018-06-29 | 2018-11-23 | 东方电气集团东方汽轮机有限公司 | A kind of two-shipper backheat small turbine start-up mode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968638A (en) * | 2021-02-04 | 2021-06-15 | 中国神华能源股份有限公司国华电力分公司 | Water supply pump steam turbine system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108868909B (en) | Starting mode of double-machine regenerative small steam turbine | |
| CN103362770B (en) | The back pressure type small turbine of industrial frequency generator speed governing drives feed-water pump and method | |
| CN109322716B (en) | Gas-steam combined cycle high back pressure heat supply unit and rotor-changing non-stop combustion machine method | |
| CN108240236B (en) | Steam supplementing and extracting system of steam turbine and control method | |
| CN107725122B (en) | 9MW mixed-temperature steam inlet back-pressure steam turbine for controlling exhaust steam temperature and temperature adjusting method thereof | |
| CN103397917A (en) | Back-pressure car driving water-feeding pump system and method adopting variable-frequency power generator for speed regulation | |
| CN110894796A (en) | Steam extraction back pressure type small steam turbine control and regulation system and method with power balance generator | |
| CN111663972A (en) | Arrange high-efficient heating system of secondary reheat unit in | |
| CN113638776A (en) | Steam extraction back pressure type steam turbine thermodynamic system and control method thereof | |
| CN209761509U (en) | System for reducing station power consumption rate of waste incineration power plant | |
| CN211692590U (en) | Take power balance generator's little steam turbine control governing system of back pressure type of drawing steam | |
| CN210239764U (en) | Arrange high-efficient heating system of secondary reheat unit in | |
| JP3616826B2 (en) | Gas turbine system and operation method thereof | |
| CN203394697U (en) | Feed pump system driven by back pressure-type small steam turbine for speed regulation of variable frequency generator | |
| CN216077243U (en) | Novel steam extraction control device of steam extraction type steam turbine | |
| CN215761819U (en) | Rapid starting system for steam turbine set of coal-fired power plant | |
| CN209761508U (en) | System for driving and reducing station power consumption rate of waste incineration power plant by water feeding pump | |
| CN211598767U (en) | Steam extraction back pressure type water feeding pump steam turbine back pressure adjusting system | |
| CN204827547U (en) | Little steam turbine of backpressure formula of double -fed alternator speed governing drives for water pump system | |
| CN103629656A (en) | Air supplying system and method of experiment table of small supercharged boiler | |
| CN210889042U (en) | Steam extraction back pressure type water feeding pump small steam turbine system with high-efficiency hydraulic speed regulating device | |
| CN209469458U (en) | A kind of back pressure type heat supply steam turbine energy conservation regulating system | |
| CN209761507U (en) | System for driving draught fan to reduce plant power consumption rate of waste incineration power plant | |
| CN113356940A (en) | Rapid starting system and method for steam turbine set of coal-fired power plant | |
| CN110970926A (en) | Auxiliary frequency modulation device based on energy-saving technology for thermal power plant and control method thereof |
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 |