CN217441592U - Ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system - Google Patents
Ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system Download PDFInfo
- Publication number
- CN217441592U CN217441592U CN202220997832.5U CN202220997832U CN217441592U CN 217441592 U CN217441592 U CN 217441592U CN 202220997832 U CN202220997832 U CN 202220997832U CN 217441592 U CN217441592 U CN 217441592U
- Authority
- CN
- China
- Prior art keywords
- temperature
- steam
- pressure
- pipeline
- dry quenching
- 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
- Coke Industry (AREA)
Abstract
The utility model relates to a dry quenching exhaust-heat boiler technical field especially relates to an ultra-temperature, superhigh pressure, dry quenching waste heat power generation steam pressure governing system. The system comprises a high-temperature superheater of a dry quenching boiler, a high-pressure cylinder of a steam turbine generator unit, a low-temperature reheater, a high-temperature reheater, a low-pressure cylinder of the steam turbine generator unit and a silencer; the high-temperature superheater of the dry quenching boiler is connected with a high-pressure cylinder of the steam turbine generator unit through a main steam pipeline, the main steam pipeline is connected with a silencer through a main steam pressure regulating and releasing pipeline, a low-temperature reheater is connected with the high-pressure cylinder of the steam turbine generator unit through a low-temperature reheated steam pipeline, the high-temperature reheater is connected with a low-pressure cylinder in the steam turbine generator unit through a high-temperature reheated steam pipeline, and the silencer is connected with the high-temperature reheated steam pipeline through a high-temperature reheated steam pressure regulating and releasing pipeline. The pressure of main steam and reheat steam can be kept stable, and then stable and safe production of coke dry quenching waste heat is guaranteed.
Description
Technical Field
The utility model relates to a dry quenching exhaust-heat boiler technical field especially relates to an ultra-temperature, superhigh pressure, dry quenching waste heat power generation steam pressure governing system.
Background
Since 1986, the Japanese coke dry quenching technology is introduced in Bao steel first-stage project, and by 2019, more than 300 coke dry quenching devices are put into operation in China, wherein the coking dry quenching rate of key steel enterprises is improved to 90% from less than 30% in 2005. The capacity of the dry quenching device is from 75t/h to 260t/h, the parameters of the dry quenching waste heat boiler mainly comprise medium temperature, medium pressure, high temperature, high pressure and high temperature and ultrahigh pressure at present, and the high-parameter dry quenching waste heat technology is more and more emphasized by the industry to the ultrahigh temperature, ultrahigh pressure and one-time intermediate reheating system developed at present.
The coke dry quenching thermodynamic system is an important component of the whole coke dry quenching process system and has the functions of reducing the temperature of the inert circulating gas of the coke dry quenching system and absorbing the heat of the inert circulating gas for effective utilization. The operation condition of the dry quenching thermal system directly influences the operation of the dry quenching device.
The dry quenching load fluctuation is frequent, the overpressure operation of a boiler system is easily caused, and if the pressure of main steam and reheat steam is too high, the opening of a safety valve and even explosion are easily caused; not only affects production, but also affects the service life of boilers, turbines and various pipelines.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an ultrahigh temperature, ultrahigh pressure and dry quenching waste heat power generation steam pressure adjusting system. The pressure of main steam and reheat steam is kept stable, and then stable and safe production of coke dry quenching waste heat is guaranteed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure regulating system comprises a dry quenching boiler high-temperature superheater, a steam turbine generator unit high-pressure cylinder, a low-temperature reheater, a high-temperature reheater, a steam turbine generator unit low-pressure cylinder and a silencer; the high-temperature superheater of the dry quenching boiler is connected with a high-pressure cylinder of the steam turbine generator unit through a main steam pipeline, the main steam pipeline is connected with a silencer through a main steam pressure regulating and releasing pipeline, a low-temperature reheater is connected with the high-pressure cylinder of the steam turbine generator unit through a low-temperature reheated steam pipeline, the high-temperature reheater is connected with a low-pressure cylinder in the steam turbine generator unit through a high-temperature reheated steam pipeline, and the silencer is connected with the high-temperature reheated steam pipeline through a high-temperature reheated steam pressure regulating and releasing pipeline.
And a main steam regulating valve is arranged on the main steam pipeline.
The main steam pressure regulating and releasing pipeline is arranged behind the main steam regulating valve, one end of the main steam pressure regulating and releasing pipeline is connected with the main steam pipeline behind the main steam regulating valve, and the other end of the main steam pressure regulating and releasing pipeline is connected with the silencer.
And a bypass adjusting valve and a main path electric valve are arranged on the main steam pressure regulating and releasing pipeline.
And a bypass adjusting valve and a main path electric valve are arranged on the high-temperature reheating steam pressure regulating and releasing pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses dry coke quenching boiler high temperature over heater passes through the main steam pipeline and links to each other with turbo generator set high-pressure cylinder, and the main steam pipeline passes through main steam pressure regulating and diffuses the pipeline and link to each other with the muffler, and the low temperature re-heater passes through low temperature reheat steam pipeline and links to each other with turbo generator set high-pressure cylinder, and the high temperature re-heater passes through high temperature reheat steam pipeline and links to each other with turbo generator set low-pressure cylinder, and the muffler passes through high temperature reheat steam pressure regulating and diffuses the pipeline and link to each other with high temperature reheat steam pipeline. The main steam pipeline is provided with a main steam regulating valve, the main steam pressure regulating and releasing pipeline is provided with a bypass regulating valve and a main pipeline electric valve, and the high-temperature reheat steam pressure regulating and releasing pipeline is provided with a bypass regulating valve and a main pipeline electric valve.
The utility model discloses can adjust main steam and reheat steam's pressure, main steam and reheat steam's assurance pressure is maintained under the relief valve pressure of setting. The utility model solves the problems of the over-pressure operation of the boiler system and the influence on the stable and safe production caused by the frequent load fluctuation of the dry quenching.
Drawings
FIG. 1 is a schematic diagram of the structure and a process flow diagram of the present invention.
In the figure: 1-high-temperature superheater of dry quenching boiler 2-high-temperature cylinder 3 of steam turbine generator unit 4-high-temperature reheater 5-low-pressure cylinder 6 of steam turbine generator unit 7-main steam pipeline 8-low-temperature reheating steam pipeline 9-high-temperature reheating steam pipeline 10-high-temperature reheating steam pressure regulating and releasing pipeline 11-silencer 12-ultrahigh-temperature, ultrahigh-pressure and single-intermediate reheating dry quenching waste heat boiler 13-circulating gas inlet 14-circulating gas outlet
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system comprises a dry quenching boiler high-temperature superheater 1, a turbo generator unit high-pressure cylinder 2, a low-temperature reheater 3, a high-temperature reheater 4, a turbo generator unit medium-low pressure cylinder 5 and a silencer 11.
The high-temperature superheater 1, the low-temperature reheater 3 and the high-temperature reheater 4 of the dry quenching boiler are arranged in the ultrahigh-temperature, ultrahigh-pressure and primary intermediate reheating dry quenching waste heat boiler 12, and the ultrahigh-temperature, ultrahigh-pressure and primary intermediate reheating dry quenching waste heat boiler 12 is provided with a circulating gas inlet 13 and a circulating gas outlet 14.
The high-temperature superheater 1 of the dry quenching boiler is connected with a high-pressure cylinder 2 of the turbo generator set through a main steam pipeline 6, and a main steam regulating valve is arranged on the main steam pipeline 6. The main steam pipeline 6 is connected with the silencer 11 through a main steam pressure regulating and releasing pipeline 7, one end of the main steam pressure regulating and releasing pipeline 7 is connected with the main steam pipeline 6 behind the main steam regulating valve, and the other end of the main steam pressure regulating and releasing pipeline is connected with the silencer 11. The main steam pressure regulating and releasing pipeline 7 is provided with a bypass regulating valve and a main circuit electric valve.
The low-temperature reheater 3 is connected with the high-pressure cylinder 2 of the steam turbine generator unit through a low-temperature reheating steam pipeline 8, the high-temperature reheater 4 is connected with the low-pressure cylinder 5 of the steam turbine generator unit through a high-temperature reheating steam pipeline 9, and the silencer 11 is connected with the high-temperature reheating steam pipeline 9 through a high-temperature reheating steam pressure regulating and releasing pipeline 10. A bypass adjusting valve and a main circuit electric valve are arranged on the high-temperature reheating steam pressure regulating and releasing pipeline 10.
The utility model discloses a theory of operation and working process as follows:
when the main steam is in overpressure, the main steam is adjusted by a bypass adjusting valve arranged on a main steam pressure-regulating and diffusing pipeline 7, and a small amount of steam is diffused to a silencer; if the main steam pressure continues to rise, a main circuit electric valve arranged on the main steam pressure regulating and releasing pipeline 7 is opened, a large amount of main steam is released to the silencer 11, and the main steam and the boiler operation pressure are guaranteed to be maintained below the safety valve setting pressure;
when the pressure of the reheat steam is over-pressure, a small amount of steam is adjusted and diffused to a silencer 11 through a bypass adjusting valve arranged on a high-temperature reheat steam pressure-adjusting diffusing pipeline 10; if the reheat steam pressure continues to rise, the main circuit electric valve arranged on the high-temperature reheat steam pressure regulating and releasing pipeline 10 is opened, a large amount of reheat steam is released to the silencer 11, and the operating pressure of the reheat steam is guaranteed to be maintained below the setting pressure of the safety valve.
The utility model solves the problems of the boiler system of overpressure operation and stable and safe production due to frequent dry quenching load fluctuation. The utility model discloses can main steam, reheat steam pressure of automatically regulated, it is stable to keep main steam, reheat steam pressure, and then guarantees the stable safety in production of dry coke quenching waste heat.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure regulating system is characterized by comprising a dry quenching boiler high-temperature superheater, a steam turbine generator unit high-pressure cylinder, a low-temperature reheater, a high-temperature reheater, a steam turbine generator unit low-pressure cylinder and a silencer; the high-temperature superheater of the dry quenching boiler is connected with a high-pressure cylinder of the steam turbine generator unit through a main steam pipeline, the main steam pipeline is connected with a silencer through a main steam pressure regulating and releasing pipeline, a low-temperature reheater is connected with the high-pressure cylinder of the steam turbine generator unit through a low-temperature reheated steam pipeline, the high-temperature reheater is connected with a low-pressure cylinder in the steam turbine generator unit through a high-temperature reheated steam pipeline, and the silencer is connected with the high-temperature reheated steam pipeline through a high-temperature reheated steam pressure regulating and releasing pipeline.
2. The ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure regulating system as claimed in claim 1, wherein a main steam regulating valve is arranged on the main steam pipeline.
3. The system for regulating the steam pressure for the ultra-high temperature, ultra-high pressure and dry quenching waste heat power generation according to claim 2, wherein the main steam pressure regulating and releasing pipeline is arranged behind the main steam regulating valve, one end of the main steam pressure regulating and releasing pipeline is connected with the main steam pipeline behind the main steam regulating valve, and the other end of the main steam pressure regulating and releasing pipeline is connected with the silencer.
4. The ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure regulating system as claimed in claim 1, wherein a bypass regulating valve and a main circuit electric valve are arranged on the main steam pressure regulating and releasing pipeline.
5. The ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure regulating system as claimed in claim 1, wherein a bypass regulating valve and a main circuit electric valve are arranged on the high-temperature reheat steam pressure regulating and releasing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220997832.5U CN217441592U (en) | 2022-04-28 | 2022-04-28 | Ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220997832.5U CN217441592U (en) | 2022-04-28 | 2022-04-28 | Ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217441592U true CN217441592U (en) | 2022-09-16 |
Family
ID=83217635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220997832.5U Active CN217441592U (en) | 2022-04-28 | 2022-04-28 | Ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217441592U (en) |
-
2022
- 2022-04-28 CN CN202220997832.5U patent/CN217441592U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108458357A (en) | A kind of realization opens machine denitration and puts into operation system and method | |
| WO2023246030A1 (en) | Molten salt heat storage-based thermal power generating unit flexible operation system | |
| CN112303604B (en) | Economizer temperature governing system that unit start-up process denitration was put into | |
| CN217441592U (en) | Ultrahigh-temperature, ultrahigh-pressure and dry quenching waste heat power generation steam pressure adjusting system | |
| CN113154356A (en) | High-temperature steam composite thermodynamic system and utilization method thereof | |
| CN113623634A (en) | System for greatly improving low-load feed water temperature of power station boiler | |
| CN201218519Y (en) | Reheating temperature-reduction auxiliary regulating mechanism for coal-gas mixed combustion boiler | |
| CN111237735A (en) | Emergency industrial steam supply system for realizing shutdown and non-shutdown of large coal-fired generator set | |
| CN217131232U (en) | Novel reheater dry-heating-preventing steam cooling system and dry-heating-preventing steam system | |
| CN111810261A (en) | Condensing unit peak regulation system | |
| CN217464397U (en) | Thermoelectric decoupling system based on boiler superheated steam reposition of redundant personnel | |
| CN114719236A (en) | Method for adjusting steam pressure of power generation by ultrahigh temperature, ultrahigh pressure and dry quenching waste heat | |
| JPH01318802A (en) | Steam temperature control system for re-heating type combined plant | |
| CN215718992U (en) | Thermal system for improving reheating steam pressure of waste incineration power generation | |
| CN114526474A (en) | Dry burning prevention steam cooling system for reheater and dry burning prevention method thereof | |
| CN208431794U (en) | A kind of realization opens machine denitration and puts into operation system | |
| CN112082147A (en) | Low-pressure superheater system of waste heat boiler | |
| CN207406389U (en) | A kind of biomass high-temperature super-pressure reheating generating set quickly opens furnace system | |
| CN211777612U (en) | Steam turbine bypass control device suitable for secondary reheating unit ATT test | |
| CN110630345A (en) | Heat recovery coke oven waste heat power generation system based on main pipe system | |
| CN216788503U (en) | Extraction steam turbine heat regenerative system based on extraction steam with high parameter | |
| CN114576605B (en) | System and method for realizing deep peak shaving by heating water supply through reheat steam | |
| CN214948970U (en) | High-temperature steam composite thermodynamic system | |
| CN219809886U (en) | Main steam and reheat steam bypass system | |
| CN214580977U (en) | High-temperature ultrahigh-pressure reheating dry quenching boiler reheat steam temperature adjusting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |