CN113090542A - Steam-electricity double-drive water pump system of indirect air cooling unit based on double-feed system - Google Patents
Steam-electricity double-drive water pump system of indirect air cooling unit based on double-feed system Download PDFInfo
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- CN113090542A CN113090542A CN202110375038.7A CN202110375038A CN113090542A CN 113090542 A CN113090542 A CN 113090542A CN 202110375038 A CN202110375038 A CN 202110375038A CN 113090542 A CN113090542 A CN 113090542A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000001816 cooling Methods 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 230000009466 transformation Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
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- 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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
A steam-electricity double-drive water feeding pump system of an indirect air cooling unit based on a double-fed system comprises a steel structure indirect air cooling tower, a steam-electricity double-drive water feeding pump, a double-fed motor, a small steam turbine and the like. The invention changes the pump feeding motor into the double-fed motor, the air inlet valve of the small engine is fully opened under each working condition, the throttling loss is reduced, the internal efficiency is improved, after the working power consumption of the pump feeding is met, the double-fed motor is automatically converted into a generator state, the residual power of the small engine is converted into electric energy, the power supply capacity of the unit is improved, the electric energy generated by the double-fed motor is 50Hz, and the network can be directly accessed; when the small motor fails or the output is insufficient, the double-fed motor is in a motor state, and the rotating speed of the pump can be directly adjusted. The speed regulation range of the double-fed motor is set according to the actual running accurate rotating speed range of the pump, so that the waste of allowance is avoided, and the manufacturing cost is low. Through the implementation of the steam-electricity double-drive water feeding pump system of the indirect air cooling unit based on the double-feed system, all operation requirements of the water feeding pump can be met, the adjusting efficiency and the adjusting safety of the water feeding pump in the future high-frequency wide-load application scene are improved, and the energy-saving potential is huge.
Description
Technical Field
The invention belongs to the field of power station boilers and steam turbine systems, and particularly relates to a steam-electricity double-drive water supply pump system of an indirect air cooling unit based on a double-feed system.
Background
In recent years, the installed capacity of new energy electric power such as wind power, photovoltaic and hydropower in China is continuously and rapidly increased, and the installed capacity in service and under construction is the first in the world. New energy sources such as wind power and photovoltaic power provide a large amount of clean power for people, but on the other hand, the randomness and instability of generated output of the new energy sources also bring great challenges to the safe operation and power supply guarantee of a power system. From the current situation, the adjustment capability of the power system in China is difficult to completely adapt to the requirement of large-scale development and consumption of new energy, and the problems of wind abandonment, light abandonment and water abandonment are severe in some areas. In order to excavate the peak regulation potential of a thermal power generating unit, improve the thermal power operation flexibility of China and improve the new energy consumption capacity, the thermal power generating unit needs to operate under the working condition of wide-load and high-frequency load change, the power consumption rate of main auxiliary equipment of a power plant, such as a water pump, a fan and the like, is greatly improved, according to field test data, when the peak regulation of the unit is up to 30% of load, the power consumption rate of the plant is increased to about 10%, and the power supply efficiency is obviously reduced.
The indirect air cooling system has become one of the mainstream techniques for cooling the exhaust steam of the steam turbine of the thermal power generating unit in northern China in recent years due to the advantages of excellent water-saving performance, flexible system adjustment and the like. The indirect air cooling unit has higher driving power of a boiler feed pump, and is an important energy consumer in a power plant. At present, a boiler water feeding pump of a plurality of indirect air cooling units adopts steam-electricity double-drive to reduce the station service power consumption and improve the generated energy of the units, the system of the driving mode is complex, the generated energy of a motor of the water feeding pump can be used on the internet only by rectifying and transforming 50HZ, and when the motor is driven, the motor does not have a speed regulation function and needs an additional hydraulic coupler or a frequency converter to cooperate with speed regulation to adapt to the variable working condition operation of the units, and the system is complex in structure, poor in economical efficiency and poor in reliability. Therefore, the reasonability of the driving mode and the speed regulating mode of the steam-electricity double-drive water feeding pump is very critical to the operation economy of the unit frequent regulation in the future high-frequency wide-load scene.
Disclosure of Invention
The invention aims to provide a steam-electricity double-drive water feed pump system of an indirect air cooling unit based on a double-feed system, which can meet the operation requirements of all working conditions of a steam-electricity double-drive boiler water feed pump of a indirect air cooling unit, reduce the plant power consumption rate, improve the regulation efficiency and the regulation safety of the steam-electricity double-drive boiler water feed pump of the indirect air cooling unit in the future high-frequency wide-load application scene, and have huge energy-saving potential.
In order to achieve the purpose, the invention adopts the technical scheme that:
a steam-electricity double-drive water-feeding pump system of an indirect air cooling unit based on a double-fed system comprises a steam turbine, a generator, a condenser, a small steam turbine, a steam-electricity double-drive water-feeding pump, a hydraulic coupler, a double-fed motor, a circulating water pump, a steel structure indirect air cooling tower, a split-flow cooler and a small circulating water pump;
the double-fed motor is coaxially connected with the small steam turbine and is connected with the steam-electricity double-drive feed pump through a hydraulic coupler;
a first steam extraction outlet of the steam turbine is connected to a steam inlet of the small steam turbine, an exhaust outlet of the small steam turbine and an exhaust outlet of the steam turbine are connected to a steam inlet of a condenser, and a condensed water outlet of the condenser is connected to a boiler through a steam-electric double-drive feed water pump;
the circulating water outlet of the steel structure indirect air cooling tower and the circulating water outlet of the split-flow cooler are connected to the circulating water inlet of the condenser, the circulating water outlet of the condenser is divided into two paths, one path is connected to the circulating water inlet of the steel structure indirect air cooling tower through a circulating water pump, and the other path is connected to the circulating water inlet of the split-flow cooler through a small circulating water pump.
The invention further improves that the steam-electricity double-drive water feeding pump is based on the double-feed system, and is driven by a small steam turbine or a double-feed motor.
The invention is further improved in that a small turbine steam inlet is provided with a small turbine steam inlet regulating valve, and a small turbine steam exhaust regulating valve is arranged at a steam exhaust outlet.
The invention has the further improvement that under each working condition, the small turbine steam inlet regulating valve is fully opened, the throttling loss is reduced, the internal efficiency is improved, the double-fed motor is automatically converted into a generator state on the premise of meeting the working power consumption of the steam-electricity double-drive water-feeding pump, the residual power of the small turbine is converted into electric energy and is merged into a plant power system, the power supply capacity of the unit is improved, the electric energy generated by the double-fed motor is 50HZ, the transformation is not needed, and the network can be directly accessed.
The invention is further improved in that a water inlet valve and a water outlet valve of the pump are respectively arranged at the inlet and the outlet of the steam-electricity double-drive water feeding pump.
The invention has the further improvement that the double-fed motor can run in a generator state and output electric energy with constant power frequency of 50HZ, or run in a motor state, and adjust the frequency of output current according to the running state of the steam-electricity double-drive water-feeding pump to adjust the rotating speed of the steam-electricity double-drive water-feeding pump.
The invention has the further improvement that when the small steam turbine fails and the double-fed motor is used as a motor to operate, the rotating speed of the steam-electricity double-drive water-feeding pump can be adjusted by changing the frequency, so that the operating condition of the steam-electricity double-drive water-feeding pump is adjusted.
The invention is further improved in that the speed regulation range of the double-feeder motor is set according to the accurate rotating speed range required by the actual operation of the steam-electricity double-drive feed water pump when the double-feeder motor operates in a state.
The invention has the further improvement that the exhaust steam of the steam turbine and the small steam turbine is discharged to a condenser for cooling and condensation, and then is subjected to pressure boosting by a steam-electricity double-drive water-feeding pump and then is heated by a boiler.
The invention has the further improvement that after the circulating water absorbs the waste heat of the dead steam in the condenser, one part of the circulating water is conveyed to the steel structure indirect air cooling tower through the circulating water pump to be indirectly cooled by heat exchange with air, the other part of the circulating water is conveyed to the shunt cooler through the small circulating water pump to be cooled, and the cooled circulating water enters the condenser again to continuously cool the dead steam.
Compared with the prior art, the double-fed motor changes a pump feeding motor into a double-fed motor, the small motor air inlet valve is fully opened under various working conditions, the throttling loss is reduced, the internal efficiency is improved, after the working power consumption of the pump feeding is met, the double-fed motor is automatically converted into a generator state, the residual power of the small motor is converted into electric energy, the power supply capacity of a unit is improved, the electric energy generated by the double-fed motor is 50Hz, and the direct internet surfing can be realized; when the small motor fails or the output is insufficient, the double-fed motor is in a motor state, and the rotating speed of the pump can be directly adjusted. The speed regulation range of the double-fed motor is set according to the actual running accurate rotating speed range of the pump, so that the waste of allowance is avoided, and the manufacturing cost is low. The invention has the beneficial effects that:
(1) the driving and speed regulating system of the steam-electricity double-drive boiler feed pump of the existing indirect cooling unit can be simplified, and the power generated by the double-fed generator can be directly connected to the Internet without voltage transformation or rectification; the double-feed motor can directly adjust the rotating speed of the steam-electricity double-drive boiler feed pump of the indirect cooling unit, a hydraulic coupler or a variable frequency adjusting system is omitted, and the operation is simple.
(2) The non-variable-frequency simple fine continuous speed regulation of the boiler feed pump of the indirect cooling unit in the electric operation state can be realized, and the regulation efficiency is high.
(3) The double-fed system has the advantages of small occupied area, low manufacturing cost and high reliability.
(4) The system is flexible in operation, simple in operation and strong in usability.
Drawings
FIG. 1 is a schematic diagram of a steam-electricity double-drive feed pump system of an indirect air cooling unit based on a double-fed system.
Description of reference numerals:
1. the system comprises a steam turbine, 2, a generator, 3, a condenser, 4, a small turbine steam inlet regulating valve, 5, a small turbine, 6, a small turbine steam outlet regulating valve, 7, a water supply and discharge valve, 8, a steam-electricity double-drive water supply pump, 9, a water supply and pump inlet valve, 10, a hydraulic coupler, 11, a double-fed motor, 12, a circulating water pump, 13, a steel structure indirect air cooling tower, 14 and a split-flow cooler.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation and are not intended to limit the present invention.
Working example 1
In an indirect air cooling unit provided with a steam-electricity double-drive water feeding pump, under a normal condition, the steam-electricity double-drive water feeding pump is driven by a small steam turbine, under the condition that the operation requirement of the steam-electricity double-drive water feeding pump is met, a motor automatically turns into a generator to operate, and generated electric energy is merged into a unit service system after rectification and transformation, so that the system is complex. When the small steam turbine has a fault, the small steam turbine is driven by the motor, and the rotating speed of the steam-electricity double-drive water feeding pump is adjusted through the hydraulic coupler or the frequency converter.
The existing motor of the steam-electricity double-drive boiler water-feeding pump of the indirect cooling unit is changed into a double-fed motor, under each working condition, the steam inlet valve of a small machine is fully opened, the throttling loss is reduced, the internal efficiency is improved, after the working power consumption of the steam-electricity double-drive boiler water-feeding pump is met, the double-fed motor is automatically converted into a generator state, the residual power of the small machine is converted into electric energy, the power supply capacity of the unit is improved, the electric energy generated by the double-fed motor is 50Hz, and; when the small motor fails or the output is insufficient, the double-fed motor is in a motor state, and the rotating speed of the pump can be directly adjusted. The speed regulation range of the double-fed motor is set according to the actual running accurate rotating speed range of the pump, so that the waste of allowance is avoided, and the manufacturing cost is low. The steam-electricity double-drive feed pump system of the indirect air cooling unit based on the double-fed system is flexible in operation, simple in operation, strong in availability and high in reliability.
The operating mode of the indirect air cooling unit steam-electricity double-drive water pump system based on the double-feed system.
1. When the small steam turbine 5 has a reliable steam source, the steam-electricity double-drive water feeding pump 8 is driven by the small steam turbine 5, and the small steam inlet regulating valve 4 is fully opened, so that the steam inlet throttling loss is reduced, and the internal efficiency of the small steam turbine 5 is improved. On the premise of meeting the working power consumption of the steam-electricity double-drive water feeding pump 8, the double-fed motor 11 is automatically converted into a generator state, the residual power of the small steam turbine 5 is converted into electric energy and is merged into a plant power system, the power supply capacity of a unit is improved, the electric energy generated by the double-fed motor 11 is 50HZ, and the direct internet surfing can be realized.
2. When the small steam turbine 5 has no reliable steam source, the double-fed motor 11 operates as a motor, the steam-electricity double-drive water-feeding pump 8 is driven by the double-fed motor, and the double-fed motor can directly adjust the rotating speed of the steam-electricity double-drive water-feeding pump 8 and adjust the operating condition of the steam-electricity double-drive water-feeding pump 8.
Through the implementation of the steam-electricity double-drive water feeding pump system of the indirect air cooling unit based on the double-feed system, all operation requirements of the water feeding pump can be met, the adjusting efficiency and the adjusting safety of the water feeding pump in the future high-frequency wide-load application scene are improved, and the energy-saving potential is huge.
Claims (10)
1. A steam-electricity double-drive water pump system of an indirect air cooling unit based on a double-fed system is characterized by comprising a steam turbine (1), a generator (2), a condenser (3), a small steam turbine (5), a steam-electricity double-drive water pump (8), a hydraulic coupler (10), a double-fed motor (11), a circulating water pump (12), a steel structure indirect air cooling tower (13), a split-flow cooler (14) and a small circulating water pump (15);
the generator (2) is coaxially connected with the steam turbine (1), the double-fed motor (11) is coaxially connected with the small steam turbine (5), and is connected with the steam-electricity double-drive feed pump (8) through a hydraulic coupler (10);
a first steam extraction outlet of the steam turbine (1) is connected to a steam inlet of the small steam turbine (5), a steam exhaust outlet of the small steam turbine (5) and a steam exhaust outlet of the steam turbine (1) are connected to a steam inlet of the condenser (3), and a condensed water outlet of the condenser (3) is connected to a boiler through a steam-electricity double-drive feed water pump (8);
the circulating water outlet of the steel structure indirect air cooling tower (13) and the circulating water outlet of the shunt cooler (14) are connected to the circulating water inlet of the condenser (3), the circulating water outlet of the condenser (3) is divided into two paths, one path is connected to the circulating water inlet of the steel structure indirect air cooling tower (13) through the circulating water pump (12), and the other path is connected to the circulating water inlet of the shunt cooler (14) through the small circulating water pump (15).
2. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system according to claim 1, characterized in that the steam-electricity double-drive water pump (8) is based on the steam-electricity double drive of the double-fed system, and is driven by a small steam turbine (5) or is driven by a double-fed motor (11).
3. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system according to claim 1, characterized in that a small turbine steam inlet adjusting valve (4) is arranged at a steam inlet of the small turbine (5), and a small turbine steam outlet adjusting valve (6) is arranged at a steam outlet.
4. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system according to claim 2, characterized in that under each working condition, the steam inlet throttle (4) of the small turbine is fully opened, so that the throttling loss is reduced, the internal efficiency is improved, on the premise of meeting the working power consumption of the steam-electricity double-drive water pump (8), the double-fed motor (11) is automatically converted into a generator state, the residual power of the small turbine (5) is converted into electric energy and is merged into a plant power system, the power supply capacity of the unit is improved, the electric energy generated by the double-fed motor is 50HZ, the transformation is not needed, and the direct internet surfing can be realized.
5. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system as claimed in claim 1, wherein the inlet and outlet of the steam-electricity double-drive water pump (8) are respectively provided with a water inlet valve (9) and a water outlet valve (7).
6. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system as claimed in claim 1, wherein the double-fed motor (11) can operate in a generator state and output electric energy with a constant power frequency of 50HZ, or operate in a motor state, and adjust the frequency of output current according to the operating state of the steam-electricity double-drive water pump (8) to adjust the rotating speed of the steam-electricity double-drive water pump (8).
7. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system as claimed in claim 1, wherein when the small steam turbine (5) is in failure and the double-fed motor (11) is used as a motor, the frequency can be changed to adjust the rotating speed of the steam-electricity double-drive water pump (8), so as to adjust the operation condition of the steam-electricity double-drive water pump (8).
8. The steam-electric double-drive water pump system of the indirect air cooling unit based on the double-fed system as claimed in claim 1, wherein when the double-fed motor (11) is in a state of operation, the speed regulation range is set according to the accurate rotating speed range required by the actual operation of the steam-electric double-drive water pump (8).
9. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the doubly-fed system as claimed in claim 1, wherein the discharged steam of the steam turbine (1) and the small steam turbine (5) is discharged to the condenser (3) for cooling and condensing, and then is boosted by the steam-electricity double-drive water pump (8) to be heated by the boiler.
10. The steam-electricity double-drive water pump system of the indirect air cooling unit based on the double-fed system according to claim 1, characterized in that after the circulating water absorbs waste heat of the exhaust steam in the condenser (3), one part of the circulating water is conveyed to the steel structure indirect air cooling tower (13) through the circulating water pump (12) to be cooled by indirect heat exchange with air, the other part of the circulating water is conveyed to the flow splitting cooler (14) through the small circulating water pump (15) to be cooled, and the cooled circulating water enters the condenser (3) again to continue to cool the exhaust steam.
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| CN202110375038.7A CN113090542A (en) | 2021-04-08 | 2021-04-08 | Steam-electricity double-drive water pump system of indirect air cooling unit based on double-feed system |
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| CN202110375038.7A CN113090542A (en) | 2021-04-08 | 2021-04-08 | Steam-electricity double-drive water pump system of indirect air cooling unit based on double-feed system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864002A (en) * | 2021-10-18 | 2021-12-31 | 西安西热节能技术有限公司 | Steam and electricity double-drive compressed air preparation system based on cogeneration unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100853A (en) * | 2017-07-04 | 2017-08-29 | 山西漳电大唐塔山发电有限公司 | A kind of auxiliary power system for two-shipper backheat |
| 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 |
| CN207968206U (en) * | 2018-02-26 | 2018-10-12 | 中国船舶重工集团公司第七0三研究所 | A kind of efficient gas electricity mixed power pump units with speed regulation |
| CN110159559A (en) * | 2019-05-09 | 2019-08-23 | 国家能源集团宿迁发电有限公司 | A kind of vapour electricity is double to drive draught fan system and its progress control method |
| CN111854462A (en) * | 2020-08-03 | 2020-10-30 | 西安热工研究院有限公司 | Full-working-condition cooling and anti-freezing system suitable for indirect air cooling heat supply unit |
| CN111879168A (en) * | 2020-08-19 | 2020-11-03 | 中国电力工程顾问集团华北电力设计院有限公司 | Air cooling coupling operation system arrangement of steam-electric double-drive feed pump of thermal power plant and control method thereof |
-
2021
- 2021-04-08 CN CN202110375038.7A patent/CN113090542A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107100853A (en) * | 2017-07-04 | 2017-08-29 | 山西漳电大唐塔山发电有限公司 | A kind of auxiliary power system for two-shipper backheat |
| CN207968206U (en) * | 2018-02-26 | 2018-10-12 | 中国船舶重工集团公司第七0三研究所 | A kind of efficient gas electricity mixed power pump units with speed regulation |
| CN110159559A (en) * | 2019-05-09 | 2019-08-23 | 国家能源集团宿迁发电有限公司 | A kind of vapour electricity is double to drive draught fan system and its progress control method |
| CN111854462A (en) * | 2020-08-03 | 2020-10-30 | 西安热工研究院有限公司 | Full-working-condition cooling and anti-freezing system suitable for indirect air cooling heat supply unit |
| CN111879168A (en) * | 2020-08-19 | 2020-11-03 | 中国电力工程顾问集团华北电力设计院有限公司 | Air cooling coupling operation system arrangement of steam-electric double-drive feed pump of thermal power plant and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| ***: "《冶金过程自动化基础》", 30 November 2006, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864002A (en) * | 2021-10-18 | 2021-12-31 | 西安西热节能技术有限公司 | Steam and electricity double-drive compressed air preparation system based on cogeneration unit |
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Application publication date: 20210709 |