CN215761819U - Rapid starting system for steam turbine set of coal-fired power plant - Google Patents
Rapid starting system for steam turbine set of coal-fired power plant Download PDFInfo
- Publication number
- CN215761819U CN215761819U CN202121186001.1U CN202121186001U CN215761819U CN 215761819 U CN215761819 U CN 215761819U CN 202121186001 U CN202121186001 U CN 202121186001U CN 215761819 U CN215761819 U CN 215761819U
- Authority
- CN
- China
- Prior art keywords
- machine
- local
- steam
- adjacent machine
- adjacent
- 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
Landscapes
- Control Of Turbines (AREA)
Abstract
The utility model discloses a quick start system of a steam turbine set of a coal-fired power plant, wherein the steam turbine set of the coal-fired power plant comprises an operating adjacent machine and a local machine which needs to be started, the local machine and the adjacent machine are respectively provided with a high-pressure cylinder, a medium-pressure cylinder, a low-pressure cylinder and a condenser hot well, the output ends of the local machine and the adjacent machine are respectively connected with a generator, the high-pressure cylinders of the local machine and the adjacent machine are respectively input into respective boilers to be supplied with steam through main steam regulating valves, a medium-pressure main steam communication pipeline is connected between medium-pressure combined steam valves of the medium-pressure cylinders of the local machine and the adjacent machine, and two branches are connected in parallel on the medium-pressure main steam communication pipeline; firstly, a steam supply branch from an adjacent machine to the local machine; secondly, a steam supply branch from the local machine to an adjacent machine; and a medium-pressure main steam inlet branch of the boiler. The utility model/utility model can shorten the starting time of the generator set, and lead the generator set to carry out rapid conversion between the low-ebb load section and the power grid high-peak section, thereby saving the starting time of the generator set, reducing the number of the generator sets which run in the low-ebb condition of the power plant, and reducing the economic loss of the power plant in the low-ebb load section.
Description
Technical Field
The utility model relates to a quick starting system of a steam turbine set of a coal-fired power plant, and also relates to a quick starting method of a steam turbine of a coal-fired power plant based on the system.
Background
At present, the starting modes of steam turbines in the domestic thermal power generation industry generally comprise medium pressure cylinder starting, high pressure cylinder starting and high and medium pressure cylinder combined starting. However, no matter what kind of starting method is adopted, the total time of normal starting and stopping of the unit in the hot state can be completed within at least 3-4 hours, and the economic and reliable operation of the unit under the peak and valley conditions of the existing power grid cannot be met. In the valley load section, the unit is forced to run at very low loads (below 40% rated load). When the generator set runs under low load, the energy consumption of the generator set is high, the power price on the Internet is low, the power generation cost is generally 0.35 yuan/kWh, the power price exceeding the total quantity of the Internet is only 0.07 yuan/kWh, and the power loss reaches 0.28 yuan/kWh when the generator set generates one degree of power when exceeding the lowest load. Generally, when the valley load is 8 hours at night, when a 1000MW coal-fired power generating set is required to operate at the valley with the load lower than the lowest load of 400MW by 100MW, the loss can reach 22.4 ten thousand yuan/day. The annual running time of 1 unit is about 280 days, the annual loss reaches 6272 ten thousand yuan, and the method is a great economic loss for a power plant.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the first technical problem and provides a quick starting system for a steam turbine set of a coal-fired power plant.
The second technical problem to be solved by the utility model is to provide a method for quickly starting the steam turbine of the coal-fired power plant based on the system.
By adopting the system and the method, the steam turbine can be quickly started and connected to the grid, the starting time of the steam turbine is effectively reduced, the starting time length of the unit in a thermal state is reduced to be within 1 hour from 3-4 hours, the flexible and accurate operation of low load of the generator set is realized, and the generator set can be subjected to peak regulation and shutdown at any time and can be started and connected to the grid at any time.
To solve the first technical problem, the utility model adopts the following technical scheme:
the utility model provides a coal fired power plant turboset quick start system, coal fired power plant turboset includes an adjacent machine in operation and the local that needs quick start at least, local and adjacent machine all be equipped with high pressure cylinder, intermediate pressure cylinder, low pressure cylinder and condenser hot-well, the output all is connected with the generator, the high pressure cylinder of local and adjacent machine respectively through main steam control valve input respective boiler steam, system characterized by:
a middle-pressure main steam communication pipeline is connected between middle-pressure joint steam valves of a middle-pressure cylinder of the local machine and an adjacent machine, and two branches are connected in parallel on the middle-pressure main steam communication pipeline; the system comprises an adjacent machine-to-local steam supply branch, a local steam supply control valve, an adjacent machine-to-local steam supply check valve and an adjacent machine-to-local steam supply adjusting valve, wherein the adjacent machine-to-local steam supply branch is provided with the adjacent machine-to-local steam supply control valve, the adjacent machine-to-local steam supply check valve and the adjacent machine-to-local steam supply adjusting valve; the steam supply branch from the local machine to the adjacent machine is provided with a steam supply control valve from the local machine to the adjacent machine, a steam supply check valve from the local machine to the adjacent machine and a steam supply regulating valve from the local machine to the adjacent machine; the intermediate pressure main steam connecting pipeline in front of the intermediate pressure joint steam valve of the local machine and the adjacent machine is also correspondingly connected with the intermediate pressure main steam inlet branch of the boiler of the local machine and the adjacent machine, and the intermediate pressure main steam inlet regulating valve of the local machine is arranged on the intermediate pressure main steam connecting pipeline.
A condenser connecting pipeline is connected between the condenser and the hot well of the condenser of the adjacent machine, and two branches are connected in parallel on the condenser connecting pipeline; the system comprises an adjacent machine-to-local water supply branch, a local water supply control valve, an adjacent machine-to-local water supply check valve, an adjacent machine-to-local water supply adjusting valve and an adjacent machine-to-local water supply booster pump, wherein the adjacent machine-to-local water supply branch is provided with the adjacent machine-to-local water supply control valve, the adjacent machine-to-local water supply check valve, the adjacent machine-to-local water supply adjusting valve and the adjacent machine-to-local water supply booster pump; and the second branch is provided with a water supply control valve from the local machine to the adjacent machine, a water supply check valve from the local machine to the adjacent machine, a water supply adjusting valve from the local machine to the adjacent machine and a water supply booster pump from the local machine to the adjacent machine.
To solve the second technical problem, the technical solution adopted by the present invention is:
a method for quickly starting a steam turbine set of a coal-fired power plant on the basis of the system is characterized by comprising the following steps:
1) separating steam used by each section of steam extraction system of the machine; the sequence is not sequential;
2) the middle-pressure main steam of the middle-pressure cylinder of the running adjacent machine passes through a middle-pressure main steam communication pipeline, an adjacent machine to local steam supply control valve, an adjacent machine to local steam supply check valve and an adjacent machine to local steam supply control valve to drive the middle-pressure cylinder and the low-pressure cylinder of the local machine to run with load or idle and run at a middle speed;
3) boosting condensed water of the condenser into a hot well of the condenser of an adjacent machine through a condensed water delivery pump, and maintaining the flow stability of working media of the adjacent machine and the water level stability of the hot well of the condenser;
4) the steam inlet flow of the intermediate pressure cylinder of the machine is adjusted by adjusting the opening degrees of the steam supply regulating valve from the adjacent machine to the machine and the steam inlet regulating valve of the intermediate pressure cylinder of the machine, the rotating speed of the machine when the machine is started is adjusted and stabilized, and the machine is connected to the power grid and keeps operating at the power within 10% after the rotating speed of the machine reaches the rated rotating speed, so that the quick connection to the power grid in advance of the generator is realized;
5) when the main steam in the adjacent boiler is introduced, the boiler system of the local boiler is started, and the boiler keeps heat preservation and pressure maintaining before starting, so that the boiler system can be quickly started to raise temperature and pressure at any time, and the rated operation parameters are reached;
6) after the steam parameters of the boiler are qualified, gradually opening the opening of a main steam regulating valve of the local machine from 0 in a gradient of 0.5%/min to enable a high-pressure cylinder to enter steam and start to output power, and simultaneously gradually opening the opening of a main steam inlet regulating valve of a middle pressure cylinder of the local machine from 0 in a gradient of 0.5%/min to introduce the steam of the local machine into the middle pressure cylinder and start to do work conversion to the steam of the local machine; in order to keep the power of the generator stable, gradually reducing (the opening degree is gradually closed from 100 percent in a gradient of 0.5 percent/min) the opening degree of the steam supply control valve from the adjacent machine to the local machine, and reducing the medium-pressure main steam supply quantity of the adjacent machine;
7) when the output power of the steam from the boiler to the high-pressure cylinder and the medium-pressure cylinder of the generator is gradually increased from 0 to the stable power of the generator by 1MW/min, the steam supply control valve from the adjacent machine to the local machine is completely closed, and the steam supply check valve from the adjacent machine to the local machine is automatically closed by virtue of pressure difference to block the impact of medium-pressure steam of the local machine on the medium-pressure cylinder of the adjacent machine when the steam supply from the adjacent machine to the local machine is switched; finally, the steam supply of the boiler of the local machine is completely switched to work, the steam supply from the adjacent machine to the local machine is completely cut off, and the quick starting and grid connection of the whole machine set are completed;
8) similarly, the running local machine outputs the local machine medium-pressure main steam to the adjacent machine intermediate pressure cylinder through the medium-pressure main steam communication pipeline, the steam pipeline, the local machine-to-adjacent machine steam supply control valve, the local machine-to-adjacent machine steam supply check valve and the local machine-to-adjacent machine steam supply regulating valve, so that steam is provided for the adjacent machine intermediate pressure cylinder, and the purpose of safe and quick starting of the adjacent machine steam turbine is achieved.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model starts from the self characteristics of the steam turbine, fully utilizes the characteristic of low-load operation of the steam turbine, and uses the reheating main steam source of the adjacent machine to drive the rotor of the steam turbine generator to operate in no-load or low-load mode; the cost of consuming a small amount of steam sources of adjacent machines and the power consumption of a small amount of auxiliary machines is only consumed, the purposes that the steam turbine of the machine can be connected to the power grid within 15 minutes, and the unit can be quickly switched and load can be increased within 1 hour are achieved, and the low-load flexible and accurate operation of the coal-fired generator set is realized.
Particularly, by arranging a medium-pressure main steam communication pipeline, the medium-pressure main steam of an adjacent machine is used for supplying steam to a medium-pressure cylinder of the machine at the initial starting stage of the machine, and the steam turbine running and the generator grid connection are completed in advance; and in the later stage, after the steam parameters of the local boiler are qualified, the local boiler is gradually switched to supply steam.
The normal steps of the unit are adjusted from boiler starting → turbine turning → generator grid connection to steam turbine no-load → generator grid connection → boiler starting → generator grid connection operation is maintained, so that the starting grid connection time of the unit is reduced to within 1 hour, and the quick starting grid connection of the unit is realized.
And finally, the medium-pressure main steam of the steam turbine can be output to the intermediate pressure cylinder of the adjacent turbine needing to be started through a branch pipeline of the medium-pressure main steam communication pipeline, so that a steam source required by operation is provided for the intermediate pressure cylinder of the adjacent turbine, and the adjacent turbine can be safely and quickly started.
The utility model can shorten the starting time of the unit to the utmost extent, and lead the generator set to carry out rapid conversion between a low-valley load section and a power grid high-peak section, carry out peak regulation and shutdown at any time and start and grid connection at any time, thereby not only saving the starting time of the unit, but also reducing the number of the units of a power plant which runs under low load under the low-valley condition, reducing the energy consumption and greatly reducing the economic loss of the power plant in the low-valley load section.
Drawings
FIG. 1 is a diagram of an integrated system according to an embodiment of the present invention.
In the figure: 1-high pressure cylinder, 2-intermediate pressure cylinder, 3-generator, 4-adjacent machine to local machine steam supply control valve, 5-adjacent machine to local machine steam supply regulating valve, 6-main steam regulating valve, 7-local machine to adjacent machine steam supply control valve, 8-local machine to adjacent machine steam supply regulating valve, 9-adjacent machine to local machine steam supply check valve, 10-local machine to adjacent machine steam supply check valve, 11-condenser hot well, 12-water conveying pump and 13-low pressure cylinder.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and examples so that those skilled in the art can better understand and implement the technical solutions of the present invention.
Referring to fig. 1, the embodiment of the system for rapidly starting a steam turbine set of a coal-fired power plant of the present invention is that the steam turbine set of the coal-fired power plant at least comprises an adjacent machine in operation and a local machine which needs to be rapidly started, the local machine and the adjacent machine are respectively provided with a high pressure cylinder 1, an intermediate pressure cylinder 2, a low pressure cylinder 13 and a condenser hot well 11, the output ends of the local machine and the adjacent machine are respectively connected with a generator 3, and the high pressure cylinders 1 of the local machine and the adjacent machine are respectively input into respective boilers to be supplied with steam through a main steam regulating valve 6.
Be connected with the main steam tie pipeline of middling pressure between the intermediate pressure joint valve of the intermediate pressure jar of this machine and adjacent machine, be provided with two parallelly connected branch pipelines on the main steam tie pipeline of middling pressure:
the steam supply branch circuit from the adjacent machine to the local machine introduces the main steam of the intermediate pressure of the adjacent machine into a local intermediate pressure cylinder through a steam pipeline, a steam supply control valve 4 from the adjacent machine to the local machine, a steam supply check valve 9 from the adjacent machine to the local machine and a steam supply adjusting valve 5 from the adjacent machine to the local machine, so as to provide a steam source required by operation for the local intermediate pressure cylinder and achieve the safe and rapid start of a steam turbine of the local machine;
and the branch pipeline outputs the main steam of the machine at the middle pressure to an intermediate pressure cylinder of the adjacent machine through a steam pipeline, a steam supply control valve 7 from the machine to the adjacent machine, a steam supply check valve 10 from the machine to the adjacent machine and a steam supply adjusting valve 8 from the machine to the adjacent machine, so as to provide a steam source required by operation for the intermediate pressure cylinder of the adjacent machine and achieve the safe and rapid start of the steam turbine of the adjacent machine.
The intermediate pressure main steam connecting pipeline in front of the intermediate pressure joint steam valve of the local machine and the adjacent machine is correspondingly connected with the intermediate pressure main steam inlet branch of the boiler of the local machine and the adjacent machine, and the branch pipeline introduces the steam of the intermediate pressure cylinder into the intermediate pressure main steam connecting pipeline through a steam pipeline and an intermediate pressure main steam inlet regulating valve (not shown in the figure).
In addition, a condenser connecting pipeline is connected between the condenser hot well 11 of the machine and the condenser hot well of the adjacent machine, and two branches are connected in parallel on the condenser connecting pipeline; the system comprises an adjacent machine-to-local water supply branch, a local water supply control valve, an adjacent machine-to-local water supply check valve, an adjacent machine-to-local water supply adjusting valve and an adjacent machine-to-local water supply booster pump, wherein the adjacent machine-to-local water supply branch is provided with the adjacent machine-to-local water supply control valve, the adjacent machine-to-local water supply check valve, the adjacent machine-to-local water supply adjusting valve and the adjacent machine-to-local water supply booster pump; and the water supply branch from the machine to the adjacent machine is provided with a water supply control valve from the machine to the adjacent machine, a water supply check valve from the machine to the adjacent machine, a water supply adjusting valve from the machine to the adjacent machine and a water delivery pump 12 from the machine to the adjacent machine.
According to the utility model, the main intermediate pressure steam of the adjacent turbine is introduced into the intermediate pressure cylinder 2 of the turbine, so that the turbine can be quickly started, the purposes of grid connection of the turbine within 15 minutes, quick switching of the turbine within 1 hour and load lifting can be realized.
Before introducing main steam in the adjacent machine, steam for each section of steam extraction system of the machine needs to be cut off, so that the main steam in the intermediate pressure of the adjacent machine is prevented from entering a boiler system of the machine when the main steam in the adjacent machine is introduced; then, leading the middle-pressure main steam of the running adjacent machine into the front of a steam supply control valve 4 from the adjacent machine to the local machine and a steam supply check valve 9 from the adjacent machine to the local machine to a steam supply regulating valve 5 of the local machine through a steam pipeline, the opening degrees of the steam supply regulating valve 5 from the adjacent machine to the local machine and the steam inlet regulating valve of the local medium pressure cylinder are regulated to regulate the steam inlet flow of the local medium pressure cylinder 2, so that the middle-pressure main steam of the adjacent machine enters the local medium pressure cylinder 2 and the low pressure cylinder 13 to do work, and the steam turbine rotor is pushed to rise and reach the rated rotating speed;
and the main steam at the middle pressure of the adjacent machine is condensed into condensed water in the working process and then enters a condenser hot well 11 of the machine, and is conveyed to the condenser hot well of the adjacent machine through a water supply control valve from the machine to the adjacent machine, a water supply check valve from the machine to the adjacent machine, a water supply regulating valve from the machine to the adjacent machine and a water delivery pump 12, so that the water quantity balance of the adjacent machine is kept.
After the rotating speed of the steam turbine is fixed, the generator 3 is connected to the power grid, the opening degree of the steam supply regulating valve 5 of the adjacent turbine is gradually increased to the position of the local turbine, the steam inlet flow of the intermediate pressure cylinder 2 of the local turbine is increased, the power operation of the generator 3 is maintained within 10%, and the rapid connection of the generator 3 in advance is achieved.
When the main steam in the adjacent boiler is introduced, the boiler system of the boiler unit is started synchronously; the boiler system of the unit keeps heat preservation and pressure maintaining at any time before starting, so that the boiler system can be quickly started to raise temperature and pressure at any time to reach rated operation parameters.
After the steam parameters of the boiler are qualified, gradually opening the opening of a main steam regulating valve 6 of the local machine from 0 by a gradient of 0.5%/min to enable a high-pressure cylinder 1 to enter steam and the high-pressure cylinder 1 to start outputting power, and simultaneously gradually opening the opening of a main steam inlet regulating valve of the local machine from 0 by a gradient of 0.5%/min to introduce the steam of the boiler of the local machine into the medium-pressure cylinder, so that the local machine starts to do work conversion to the steam of the local machine; in order to keep the power of the generator 3 stable, the opening degree from the adjacent machine to the steam supply control valve 4 of the local machine is gradually closed from 100 percent in a gradient of 0.5 percent/min, and the medium-pressure main steam supply quantity of the adjacent machine is reduced.
When the output power of the steam from the boiler to the high pressure cylinder 1 and the medium pressure cylinder 2 is gradually increased from 0 to the stable power of the generator 3 by 1MW/min, the steam supply control valve 4 from the adjacent machine to the local machine is completely closed, the steam supply check valve 9 from the adjacent machine to the local machine is automatically closed by means of pressure difference, and the impact of the medium pressure steam of the local machine on the medium pressure cylinder of the adjacent machine when the steam supply from the adjacent machine to the local machine is switched is blocked; finally, the steam supply of the boiler of the machine is completely switched to work, the steam supply from the adjacent machine to the machine is completely cut off, and the quick starting and grid connection of the whole machine set are completed.
The utility model uses the main steam of the middle pressure of the adjacent machine to supply steam for the middle pressure cylinder 2 of the machine at the initial starting stage of the machine by arranging the main steam connecting pipeline of the middle pressure and the main steam inlet branch pipeline of the middle pressure of the adjacent machine on the main steam connecting pipeline of the middle pressure, finishes the turbine running and the grid connection of the generator 3 in advance, and uses a part of the main steam of the middle pressure of the adjacent machine to maintain the power operation of the generator 3 within 10 percent by controlling the opening degrees of the steam supply regulating valve 5 from the adjacent machine to the machine and the main steam inlet regulating valve of the middle pressure of the machine.
After main steam parameters of the local boiler are qualified, the main steam at the middle pressure of the local boiler is provided for the middle pressure cylinder 2 through a main steam inlet branch pipeline at the middle pressure of the local boiler on a main steam communication pipeline, the main steam inlet regulating valve at the middle pressure of the local boiler is gradually increased, the opening degree of a steam supply control valve 4 from an adjacent machine to the local boiler is reduced, steam is switched to the local boiler, and finally the local boiler is completely switched to steam supply for acting.
The utility model reduces the time for starting and grid-connection of the generator set to be within 1 hour, and enables the generator set to be rapidly switched between a low-valley load section and a high-peak section of a power grid, thereby realizing the low-load flexibility and accurate operation of the generator set, enabling the generator set to be capable of carrying out peak regulation and shutdown at any time and starting and grid-connection at any time, not only saving the starting time of the generator set, but also reducing the number of the generator sets which are operated at low load under the low-valley condition of a power plant, reducing the energy consumption and greatly reducing the economic loss of the power plant in the low-valley load section.
The above-mentioned embodiments are only preferred embodiments of the present invention, but should not be construed as limitations of the present invention, and any modifications and improvements based on the concept of the present invention shall fall within the protection scope of the present invention, and the specific protection scope shall be subject to the claims.
Claims (1)
1. The utility model provides a coal fired power plant turboset quick start system, coal fired power plant turboset includes an adjacent machine in operation and the local that needs quick start at least, local and adjacent machine all be equipped with high pressure cylinder, intermediate pressure cylinder, low pressure cylinder and condenser hot-well, the output all is connected with the generator, the high pressure cylinder of local and adjacent machine respectively through main steam control valve input respective boiler steam, system characterized by:
a middle-pressure main steam communication pipeline is connected between middle-pressure joint steam valves of a middle-pressure cylinder of the local machine and an adjacent machine, and two branches are connected in parallel on the middle-pressure main steam communication pipeline;
the system comprises an adjacent machine-to-local steam supply branch, a local steam supply control valve, an adjacent machine-to-local steam supply check valve and an adjacent machine-to-local steam supply adjusting valve, wherein the adjacent machine-to-local steam supply branch is provided with the adjacent machine-to-local steam supply control valve, the adjacent machine-to-local steam supply check valve and the adjacent machine-to-local steam supply adjusting valve;
the steam supply branch from the local machine to the adjacent machine is provided with a steam supply control valve from the local machine to the adjacent machine, a steam supply check valve from the local machine to the adjacent machine and a steam supply regulating valve from the local machine to the adjacent machine;
the intermediate-pressure main steam connecting pipeline in front of the intermediate-pressure joint steam valve of the local machine and the adjacent machine is also correspondingly connected with the intermediate-pressure main steam inlet branch of the boiler of the local machine and the adjacent machine, and the intermediate-pressure main steam inlet regulating valve of the local machine is arranged on the intermediate-pressure main steam connecting pipeline;
a condenser connecting pipeline is connected between the condenser and the hot well of the condenser of the adjacent machine, and two branches are connected in parallel on the condenser connecting pipeline; the system comprises an adjacent machine-to-local water supply branch, a local water supply control valve, an adjacent machine-to-local water supply check valve, an adjacent machine-to-local water supply adjusting valve and an adjacent machine-to-local water supply booster pump, wherein the adjacent machine-to-local water supply branch is provided with the adjacent machine-to-local water supply control valve, the adjacent machine-to-local water supply check valve, the adjacent machine-to-local water supply adjusting valve and the adjacent machine-to-local water supply booster pump; and the second branch is provided with a water supply control valve from the local machine to the adjacent machine, a water supply check valve from the local machine to the adjacent machine, a water supply adjusting valve from the local machine to the adjacent machine and a water supply booster pump from the local machine to the adjacent machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121186001.1U CN215761819U (en) | 2021-05-31 | 2021-05-31 | Rapid starting system for steam turbine set of coal-fired power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121186001.1U CN215761819U (en) | 2021-05-31 | 2021-05-31 | Rapid starting system for steam turbine set of coal-fired power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761819U true CN215761819U (en) | 2022-02-08 |
Family
ID=80098864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121186001.1U Active CN215761819U (en) | 2021-05-31 | 2021-05-31 | Rapid starting system for steam turbine set of coal-fired power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607480A (en) * | 2022-03-11 | 2022-06-10 | 西安热工研究院有限公司 | Converter-controlled BEST small machine double-machine steam source series complementary structure |
-
2021
- 2021-05-31 CN CN202121186001.1U patent/CN215761819U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607480A (en) * | 2022-03-11 | 2022-06-10 | 西安热工研究院有限公司 | Converter-controlled BEST small machine double-machine steam source series complementary structure |
| CN114607480B (en) * | 2022-03-11 | 2024-05-14 | 西安热工研究院有限公司 | BEST (test) small-machine double-machine steam source serial complementary structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108868909B (en) | Starting mode of double-machine regenerative small steam turbine | |
| CN110701663A (en) | Injection type heat pump exhaust steam recovery heat supply mode and system based on complete thermoelectric decoupling | |
| JPS61152914A (en) | Starting of thermal power plant | |
| CN113175363A (en) | Master pipe connection system for adjusting high-pressure cylinder to do work and operation method | |
| CN110656991A (en) | Injection gas distribution thermoelectric decoupling mode based on axial thrust balance and reheating balance | |
| CN215761819U (en) | Rapid starting system for steam turbine set of coal-fired power plant | |
| CN210509309U (en) | Steam complementary energy utilization coupling steam extraction heat supply system for thermoelectric unit electric power peak regulation | |
| CN112112691A (en) | Asynchronous power generation system for cascade utilization of industrial steam of thermal power plant and adjusting method | |
| CN106437875A (en) | Thermal power generating unit working medium shunting circulation peak shaving system | |
| CN113356940A (en) | Rapid starting system and method for steam turbine set of coal-fired power plant | |
| CN112065520B (en) | Cold and hot re-cooperative steam supply system and method | |
| CN218151092U (en) | Thermal power plant steam turbine backpressure steam extraction energy cascade utilization system | |
| CN109653819B (en) | Deep peak-shaving steam turbine system of cogeneration unit and control method | |
| CN214091974U (en) | Device for driving feed pump by adopting main shaft of steam turbine | |
| CN110056402B (en) | Steam complementary energy utilization coupling steam extraction heat supply system and adjusting method | |
| CN212614904U (en) | Coaxial constant-speed water supply pump system | |
| CN215719112U (en) | High-pressure water supply system | |
| CN113153470A (en) | Coupling peak shaving system based on middle row and cooling of units and operation method thereof | |
| CN214660396U (en) | Coupling peak shaving system based on middle row and cooling of middle row among units | |
| CN113153469A (en) | Coupling peak regulation system based on medium-exhaust and low-pressure extraction cooling and operation method thereof | |
| CN219387970U (en) | System for improving economic and flexible operation of circulating water pump of steam power network | |
| CN219571900U (en) | Feed pump system and thermal generator set | |
| CN214464456U (en) | Coupling peak regulation system based on medium-pressure exhaust and low-pressure steam extraction cooling | |
| CN114991893B (en) | Front-end turbine system for deep peak shaving and operation method | |
| CN214464457U (en) | Peak regulation system based on steam turbine intermediate pressure cylinder exhaust coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |