CN114963286A - Process for supplying heating water by dry quenching waste heat power generation - Google Patents
Process for supplying heating water by dry quenching waste heat power generation Download PDFInfo
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- CN114963286A CN114963286A CN202210702078.2A CN202210702078A CN114963286A CN 114963286 A CN114963286 A CN 114963286A CN 202210702078 A CN202210702078 A CN 202210702078A CN 114963286 A CN114963286 A CN 114963286A
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- turbine generator
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- heating water
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- 239000008236 heating water Substances 0.000 title claims abstract description 62
- 238000010791 quenching Methods 0.000 title claims abstract description 29
- 230000000171 quenching effect Effects 0.000 title claims abstract description 29
- 238000010248 power generation Methods 0.000 title claims abstract description 26
- 239000002918 waste heat Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000000605 extraction Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000498 cooling water Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 23
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000004939 coking Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0002—Means for connecting central heating radiators to circulation pipes
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to the technical field of dry quenching waste heat power generation, in particular to a process for supplying heating water by dry quenching waste heat power generation. In winter, steam respectively enters a straight condensing turbo generator set and a condensing turbine generator set to do work, and is condensed into water through a condenser for the straight condensing turbo generator set and a condenser for the condensing turbine generator set respectively, circulating cooling water of the condenser for the straight condensing turbo generator set is switched into heating water, low-temperature heating water firstly passes through the condenser for the straight condensing turbo generator set, after heat exchange, the low-temperature heating water becomes medium-temperature heating water and then enters a heat supply network heater, the heat supply network heater utilizes the condensing turbine generator set to extract steam to heat the medium-temperature heating water, the medium-temperature heating water becomes high-temperature heating water to be supplied to heating users, and steam extracted by the condensing turbine generator set is condensed into water after heat exchange through the heat supply network heater and then returns to the condenser for the condensing turbo generator set. The generating efficiency of the steam turbine in winter is improved, the steam extraction amount is adjusted according to the change of external heating load, and heating and heat supply are not affected when the steam turbine generator unit breaks down.
Description
Technical Field
The invention relates to the technical field of dry quenching waste heat power generation, in particular to a process for supplying heating water by dry quenching waste heat power generation.
Background
At present, large coking enterprises are mostly built near urban groups, heating and heat supply of part of cities are borne by the coking enterprises, and heating water is obtained by heating the heating water through a steam-water heat exchanger by using low-pressure steam of 0.6 MPa.
However, the steam consumption of coking enterprises in winter is far higher than the consumption in summer, and low-pressure steam of-0.6 MPa which is increased in winter is generally supplied by steam extraction of a steam turbine configured by dry quenching, so that the power generation efficiency of the steam turbine in winter is greatly reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a process for supplying heating water by dry quenching waste heat power generation, which can improve the power generation efficiency of a steam turbine in winter, can automatically adjust the steam extraction amount according to the change of external heating load, and can ensure that the heating and heat supply are not influenced when any steam turbine generator unit fails.
In order to achieve the purpose, the invention adopts the following technical scheme:
a system for supplying heating water by dry quenching waste heat power generation comprises a pure condensing steam turbine generator unit, a condenser for the pure condensing steam turbine generator unit, a bypass condenser, a heat supply network heater, a condensing and pumping steam turbine generator unit and a condenser for the condensing and pumping steam turbine generator unit which are sequentially connected through pipelines; the first cooling tower is connected with a condenser pipeline for a straight condensing turbine generator unit, and the second cooling tower is connected with a condenser pipeline for a condensing turbine generator unit; one end of a third standby temperature and pressure reducing device is connected with the high-parameter steam pipeline, and the other end of the third standby temperature and pressure reducing device is connected with a pipeline connected with a heat supply network heater and a condensing turbine generator set; one end of a first standby temperature and pressure reduction device and one end of a second standby temperature and pressure reduction device are connected with a high-parameter steam pipeline, and the other end of the first standby temperature and pressure reduction device is connected with a bypass condenser pipeline; the outlet of the heating network heater is connected with a heating equipment pipeline, the heating equipment is connected with a condenser inlet pipeline for the straight condensing steam turbine generator unit, and a branch pipeline is arranged to be connected with a bypass condenser inlet.
The outlet of the condenser for the straight condensing steam turbine generator unit is connected with the inlet of the first cooling tower through a pipeline, and a valve is arranged on the pipeline; the condenser inlet for the straight condensing steam turbine generator unit is connected with the outlet of the first cooling tower through a pipeline, and a valve is arranged on the pipeline.
And the condenser outlet of the condensing wheel generator set is connected with the inlet of the second cooling tower through a pipeline, and the condenser inlet of the condensing wheel generator set is connected with the outlet of the second cooling tower through a pipeline.
The high-parameter steam pipeline is connected with an inlet of the straight condensing turbine generator unit, and the high-parameter steam pipeline is connected with an inlet of the condensing turbine generator unit.
And the outlet of the bypass condenser is connected with a pipeline connected with the condenser for the straight condensing steam turbine generator unit and the heat supply network heater through a pipeline, and a valve is arranged on the pipeline.
The steam extraction turbine generator set adjusts steam extraction, and steam extraction parameters are as follows: the steam extraction amount of the steam extraction turbine generator set is automatically adjusted according to the heat load of an external heating user at 0.02MPa and 105 ℃; the first standby temperature and pressure reduction equipment can reduce the temperature and the pressure of high-parameter steam to 0.6MPa and 170 ℃; the second standby temperature and pressure reduction equipment can reduce the temperature and the pressure of the steam from 0.6MPa and 170 ℃ to 0.02MPa and 60 ℃; the third standby temperature and pressure reducing equipment can reduce the temperature and the pressure of the steam to 0.02MPa and 120 ℃.
A process for supplying heating water by dry quenching waste heat power generation specifically comprises the following steps:
1) in winter, high-parameter steam generated by dry quenching enters a straight condensing turbo generator set and a steam extraction and condensation turbine generator set respectively to do work when being normally produced, the high-parameter steam is condensed into water through a condenser for the straight condensing turbo generator set and a condenser for the steam extraction and condensation turbine generator set respectively, circulating cooling water of the condenser for the straight condensing turbo generator set is switched into heating water, low-temperature heating water firstly passes through the condenser for the straight condensing turbo generator set, after heat exchange, the low-temperature heating water becomes medium-temperature heating water, then the medium-temperature heating water enters a heat network heater, the heat network heater utilizes the steam extraction and condensation turbine generator set to extract steam to heat the medium-temperature heating water, the medium-temperature heating water becomes high-temperature heating water to be supplied to heating users, and steam extraction of the steam extraction and condensation turbine generator set is condensed into water after heat exchange through the heat network heater, and the water returns to the condenser for the steam extraction and condensation turbo generator set;
2) when the steam turbine generator set is in an accident or is overhauled, high-parameter steam enters a first standby temperature and pressure reduction device, a second standby temperature and pressure reduction device and a bypass condenser to be condensed into water, and low-temperature heating water is heated by the bypass condenser;
3) when the steam turbine generator set is in accident or maintenance, high-parameter steam enters a third standby temperature and pressure reduction device and a heat supply network heater to be condensed into water, and medium-temperature heating water is heated by the heat supply network heater;
4) in summer, high-parameter steam generated by dry quenching respectively enters a pure condensing steam turbine generator unit and a condensing extraction steam turbine generator unit to do work, the high-parameter steam is condensed into water through a condenser for the pure condensing steam turbine generator unit and a condenser for the condensing extraction steam turbine generator unit, the condensing extraction steam turbine generator unit is adjusted to be in pure condensing operation, heating water is switched into circulating cooling water, and the circulating cooling water is cooled through a cooling tower.
The heat supply network heater utilizes a steam extraction turbine generator set to extract steam with 0.02MPa and 105 +/-10 ℃ to heat medium-temperature heating water.
The steam extracted by the steam extraction turbine generator unit is condensed into water with the temperature of 60 +/-10 ℃ after being subjected to heat exchange by the heat supply network heater, and the water returns to the condenser for the steam extraction turbine generator unit.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through 1 straight condensing unit, 1 condensing unit, 2 heating network heaters, a plurality of standby temperature and pressure reduction devices, a bypass condenser and other auxiliary devices which are arranged in the dry quenching waste heat power generation, low-temperature heating water is heated by using waste heat of steam exhausted by the straight condensing unit and steam extraction heat of the condensing unit to supply heating users, the power generation efficiency of the steam turbine in winter can be improved, the steam extraction amount can be automatically adjusted according to the change of external heating load, and the heating and heat supply can not be influenced when any steam turbine generator unit fails through the plurality of standby temperature and pressure reduction devices and the bypass condenser.
Drawings
FIG. 1 is a schematic diagram of the structure and process of the present invention.
In the figure: 1-straight condensing steam turbine generator unit 2-straight condensing steam turbine generator unit condenser 3-condensing steam turbine generator unit 4-condensing steam turbine generator unit condenser 5-heat net heater 61-first cooling tower 62-second cooling tower 7-first spare temperature and pressure reduction equipment 8-second spare temperature and pressure reduction equipment 9-third spare temperature and pressure reduction equipment 10-bypass steam condenser.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, a system for supplying heating water by dry quenching waste heat power generation comprises a pure condensing turbo generator unit 1, a condenser 2 for the pure condensing turbo generator unit, a condensing turbine generator unit 3, a condenser 4 for the condensing turbine generator unit, a heat supply network heater 5, a first cooling tower 61, a second cooling tower 62, a first standby temperature and pressure reducing device 7, a second standby temperature and pressure reducing device 8, a third standby temperature and pressure reducing device 9 and a bypass condenser 10. The number of the heating network heaters 5 is one or two or more.
One branch of the high-parameter steam pipeline is connected with an inlet of the straight condensing turbine generator unit 1, and the other branch of the high-parameter steam pipeline is connected with an inlet of the condensing turbine generator unit 3. The outlet of the condenser 2 for the pure condensing steam turbine generator unit is connected with the inlet 61 of the first cooling tower through a pipeline, and a valve is arranged on the pipeline. The condenser inlet 2 for the straight condensing steam turbine generator unit is connected with the first cooling tower outlet 61 through a pipeline, and a valve is arranged on the pipeline. An outlet of a condenser 4 for the condensing turbine generator set is connected with an inlet of the second cooling tower 62 through a pipeline, and an inlet of the condenser 4 for the condensing turbine generator set is connected with an outlet of the second cooling tower 62 through a pipeline.
The outlet of the condenser 2 for the pure condensing steam turbine generator unit is connected with a heat supply network heater 5 through a pipeline, and a valve is arranged on the pipeline. The outlet of the heating network heater 5 is connected with the inlet of the condenser 2 for the pure condensing steam turbine generator unit through a pipeline, the pipeline is provided with a valve, the pipeline is provided with a branch pipeline connected with the inlet of the bypass condenser 10, the outlet of the bypass condenser 10 is connected with the pipeline connected with the inlet of the heating network heater 5 through the outlet of the condenser 2 for the pure condensing steam turbine generator unit through a pipeline, and the pipeline is provided with a valve.
An outlet of the condensing turbine generator set 3 is connected with an inlet of the heat supply network heater 5 through a pipeline, and a valve is arranged on the connected pipeline. An outlet of the heating network heater 5 is connected with an inlet of a condenser 4 for the condensing turbine generator set through a pipeline.
An inlet of the first standby temperature and pressure reducing device 7 is connected with the high-parameter steam pipeline, an outlet of the first standby temperature and pressure reducing device 7 is connected with an inlet pipeline of the second standby temperature and pressure reducing device 8, and an outlet of the second standby temperature and pressure reducing device 8 is connected with an inlet pipeline of the bypass condenser 10. The inlet of a third standby temperature and pressure reducing device 9 is connected with a high-parameter steam pipeline, the outlet of the third standby temperature and pressure reducing device 9 is connected with the pipeline connecting the outlet of the condensing turbine generator set 3 and the inlet of the heat supply network heater 5 through a pipeline, and a valve is arranged on the pipeline.
The steam extraction turbine generator set 3 adjusts the steam extraction, and the steam extraction parameters are as follows: the steam extraction quantity of the steam extraction turbine generator set is automatically adjusted according to the heat load of an external heating user at 0.02MPa and 105 ℃. The first standby temperature and pressure reduction equipment 7 can reduce the temperature and the pressure of the high-parameter steam to 0.6MPa and 170 ℃; the second standby temperature and pressure reduction device 8 can reduce the temperature and the pressure of the steam from 0.6MPa and 170 ℃ to 0.02MPa and 60 ℃; the third standby temperature and pressure reduction device 9 can reduce the temperature and the pressure of the steam to 0.02MPa and 120 ℃.
A process for supplying heating water by dry quenching waste heat power generation specifically comprises the following steps:
1) in winter, high-parameter steam generated by dry quenching enters a pure condensing turbo generator set 1 and a condensing extraction turbo generator set 3 respectively to do work during normal production, and passes through a condenser 2 for the pure condensing turbo generator set respectively, the condenser 4 for the steam extraction turbine generator unit is condensed into water, the circulating cooling water of the condenser 2 for the pure condensation turbine generator unit is switched into heating water, low-temperature heating water firstly passes through the condenser 2 for the pure condensation turbine generator unit, after heat exchange, medium-temperature heating water is obtained and then enters the heat supply network heater 5, the heat supply network heater utilizes the steam extraction turbine generator unit 3 to extract 0.02MPa, steam at the temperature of-105 ℃ heats the medium-temperature heating water (by adjusting steam extraction quantity and heating load), the medium-temperature heating water is changed into high-temperature heating water to be supplied to users, steam extracted by the steam extraction turbine generator unit 3 is condensed into water at the temperature of-60 ℃ after heat exchange by the heat supply network heater 5 and then returns to the condenser 4 for the steam extraction turbine generator unit.
2) When the condensing turbine generator set 1 is in an accident or is overhauled, high-parameter steam enters the first standby temperature and pressure reducing device 7, the second standby temperature and pressure reducing device 8 and the bypass condenser 10 to be condensed into water, and low-temperature heating water is heated by the bypass condenser 10.
3) When the condensing turbine generator set 3 is in an accident or is overhauled, high-parameter steam enters the third standby temperature and pressure reduction equipment 9 and the heat supply network heater 5 to be condensed into water, and medium-temperature heating water is heated by the heat supply network heater 5.
4) In summer, high-parameter steam generated by dry quenching enters the pure condensing turbo generator set 1 and the condensing turbine generator set 3 respectively to do work, the high-parameter steam is condensed into water through the condenser 2 for the pure condensing turbo generator set and the condenser 4 for the condensing turbine generator set respectively, the condensing turbine generator set 3 is adjusted to be in pure condensing operation, heating water is switched into circulating cooling water, and the circulating cooling water is cooled through the cooling tower 6.
The invention disposes 1 straight condensing unit, 1 extraction condensing unit, 2 heating network heaters, a plurality of standby temperature and pressure reducing devices, bypass condensers and other auxiliary devices in the dry quenching waste heat power generation, uses the waste heat of the steam exhaust of the straight condensing unit and the steam extraction heat of the extraction condensing unit to heat low-temperature heating water and supply the low-temperature heating water to heating users, thereby not only improving the power generation efficiency of the steam turbine in winter, but also automatically adjusting the steam extraction amount according to the change of the external heating load, and ensuring that the heating and heat supply are not influenced when any steam turbine generator set fails through the plurality of standby temperature and pressure reducing devices and the bypass condensers.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a system for dry quenching waste heat power generation supplies heating water which characterized in that: the system comprises a straight condensing turbine generator unit, a condenser for the straight condensing turbine generator unit, a bypass condenser, a heat supply network heater, a condensing wheel generator unit and a condenser for the condensing wheel generator unit which are sequentially connected through pipelines; the first cooling tower is connected with a condenser pipeline for a straight condensing turbine generator unit, and the second cooling tower is connected with a condenser pipeline for a condensing turbine generator unit; one end of a third standby temperature and pressure reducing device is connected with a high-parameter steam pipeline, and the other end of the third standby temperature and pressure reducing device is connected with a pipeline connected with a heat supply network heater and a steam extraction and condensation turbine generator set; one end of a first standby temperature and pressure reduction device and one end of a second standby temperature and pressure reduction device are connected with a high-parameter steam pipeline, and the other end of the first standby temperature and pressure reduction device is connected with a bypass condenser pipeline; the outlet of the heating network heater is connected with a heating equipment pipeline, the heating equipment is connected with a condenser inlet pipeline for the straight condensing steam turbine generator unit, and a branch pipeline is arranged to be connected with a bypass condenser inlet.
2. The system for supplying heating water by dry quenching waste heat power generation as claimed in claim 1, wherein: the outlet of the condenser for the straight condensing steam turbine generator unit is connected with the inlet of the first cooling tower through a pipeline, and a valve is arranged on the pipeline; the condenser inlet for the straight condensing steam turbine generator unit is connected with the outlet of the first cooling tower through a pipeline, and a valve is arranged on the pipeline.
3. The system for supplying heating water by dry quenching waste heat power generation as claimed in claim 1, wherein: and the condenser outlet of the condensing wheel generator set is connected with the inlet of the second cooling tower through a pipeline, and the condenser inlet of the condensing wheel generator set is connected with the outlet of the second cooling tower through a pipeline.
4. The system for supplying heating water by dry quenching waste heat power generation as claimed in claim 1, wherein: the high-parameter steam pipeline is connected with an inlet of the straight condensing turbine generator unit, and the high-parameter steam pipeline is connected with an inlet of the condensing turbine generator unit.
5. The system for supplying heating water by dry quenching waste heat power generation as claimed in claim 1, wherein: and the outlet of the bypass condenser is connected with a pipeline connected with the condenser for the straight condensing steam turbine generator unit and the heat supply network heater through a pipeline, and a valve is arranged on the pipeline.
6. The system for supplying heating water by dry quenching waste heat power generation as claimed in claim 1, wherein: the steam extraction turbine generator set adjusts steam extraction, and steam extraction parameters are as follows: the steam extraction amount of the steam extraction turbine generator set is automatically adjusted according to the heat load of an external heating user at 0.02MPa and 105 ℃; the first standby temperature and pressure reduction equipment can reduce the temperature and the pressure of high-parameter steam to 0.6MPa and 170 ℃; the second standby temperature and pressure reduction equipment can reduce the temperature and the pressure of the steam from 0.6MPa and 170 ℃ to 0.02MPa and 60 ℃; the third standby temperature and pressure reducing equipment can reduce the temperature and the pressure of the steam to 0.02MPa and 120 ℃.
7. The process of the system for supplying heating water based on dry quenching waste heat power generation as claimed in any one of claims 1 to 6, is characterized by comprising the following steps:
1) in winter, high-parameter steam generated by dry quenching enters a pure condensing turbo generator set and a condensing turbine generator set respectively to do work when being normally produced, the high-parameter steam is condensed into water through a condenser for the pure condensing turbo generator set and a condenser for the condensing turbine generator set respectively, circulating cooling water of the condenser for the pure condensing turbo generator set is switched into heating water, low-temperature heating water firstly passes through the condenser for the pure condensing turbo generator set, the low-temperature heating water becomes medium-temperature heating water after heat exchange and then enters a heat supply network heater, the heat supply network heater heats the medium-temperature heating water by using the steam extracted by the condensing turbine generator set, the medium-temperature heating water becomes high-temperature heating water to be supplied to heating users, and steam extracted by the condensing turbine generator set is condensed into water after heat exchange through the heat supply network heater and then returns to the condenser for the condensing turbo generator set;
2) when the steam turbine generator set is in an accident or is overhauled, high-parameter steam enters a first standby temperature and pressure reduction device, a second standby temperature and pressure reduction device and a bypass condenser to be condensed into water, and low-temperature heating water is heated by the bypass condenser;
3) when the steam turbine generator set is in accident or maintenance, high-parameter steam enters a third standby temperature and pressure reduction device and a heat supply network heater to be condensed into water, and medium-temperature heating water is heated by the heat supply network heater;
4) in summer, high-parameter steam generated by dry quenching respectively enters a pure condensing steam turbine generator unit and a condensing extraction steam turbine generator unit to do work, the high-parameter steam is condensed into water through a condenser for the pure condensing steam turbine generator unit and a condenser for the condensing extraction steam turbine generator unit, the condensing extraction steam turbine generator unit is adjusted to be in pure condensing operation, heating water is switched into circulating cooling water, and the circulating cooling water is cooled through a cooling tower.
8. The process for supplying heating water by dry quenching waste heat power generation according to claim 7, wherein the heat supply network heater heats the medium-temperature heating water by extracting steam at 105 +/-10 ℃ at 0.02MPa by using an extraction condensing turbine generator set.
9. The process for supplying heating water by dry quenching waste heat power generation according to claim 7, wherein the steam extracted by the steam extraction turbine generator unit is condensed into water with the temperature of 60 +/-10 ℃ after heat exchange by the heat supply network heater and then returned to the condenser for the steam extraction turbine generator unit.
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| CN108005741A (en) * | 2017-12-14 | 2018-05-08 | 华电电力科学研究院 | It is a kind of to improve the solidifying back of the body of taking out for thermally safe co-generation unit and adjusting method |
| CN109322716A (en) * | 2018-10-16 | 2019-02-12 | 山东华电节能技术有限公司 | Combined cycle gas-steam turbine high back pressure thermal power plant unit and exchanging rotor not brennschluss machine method |
| CN110285470A (en) * | 2019-06-25 | 2019-09-27 | 北京源深节能技术有限责任公司 | Mating steam turbine heating plant and its operation method |
| CN213453817U (en) * | 2020-07-09 | 2021-06-15 | 河北国华定州发电有限责任公司 | Multi-unit coupled waste heat cascade utilization heat supply network system |
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