CN215733507U - Steel mill comprehensive power supply system utilizing new energy to generate power - Google Patents
Steel mill comprehensive power supply system utilizing new energy to generate power Download PDFInfo
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- CN215733507U CN215733507U CN202120551760.7U CN202120551760U CN215733507U CN 215733507 U CN215733507 U CN 215733507U CN 202120551760 U CN202120551760 U CN 202120551760U CN 215733507 U CN215733507 U CN 215733507U
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- power
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- steel mill
- transformer substation
- photovoltaic
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 238000010248 power generation Methods 0.000 claims abstract description 33
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 238000011084 recovery Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The utility model discloses a steel mill comprehensive power supply system for generating power by using new energy, which comprises a self-built photovoltaic power generation subsystem, a self-built wind power generation subsystem, a self-built coal-fired power generation subsystem, a national power grid power supply input end and a steel mill transformer substation. The utility model utilizes wind energy, solar energy and a coal-fired boiler of the steel mill to generate electricity and combines a mains supply power grid to supply power, reduces the scale of a coal-fired self-contained power plant in the steel mill through a self-built new energy power plant, realizes the whole carbon emission reduction of the steel mill, reduces the environmental protection pressure of the steel mill, and has better environmental benefit, economic benefit and social benefit.
Description
Technical Field
The utility model belongs to the technical field of power supply, and particularly relates to a steel mill comprehensive power supply system for generating power by using new energy.
Background
Steel enterprises generally build self-contained power plants which can be divided into steel plants discharging byproducts ('three gases and one heat') for power generation and conventional coal-fired power plants according to different fuel sources. For the former, the byproduct of an enterprise is consumed and the electric energy is provided for the enterprise, so that certain economic benefit and environmental protection benefit are achieved. For the latter, because the general installation scale is small, the efficiency is low, the emission is large, and the carbon emission in the operation process needs to be taken into account in the whole carbon emission of an enterprise, the carbon emission reduction development of the whole metallurgical industry is adversely affected under the large background of green metallurgy in the future. Therefore, on the background of green development, higher requirements are put forward on energy conservation and emission reduction of iron and steel enterprises, and carbon emission reduction is widely concerned.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a comprehensive power supply system for a steel mill, which generates power by using new energy.
The utility model is realized by the following technical scheme:
a steel mill comprehensive power supply system utilizing new energy to generate power comprises a self-built photovoltaic power generation subsystem, a self-built wind power generation subsystem, a self-built coal-fired power generation subsystem, a national power grid power supply input end and a steel mill transformer substation;
the photovoltaic power generation subsystem comprises a photovoltaic array, a direct current power distribution cabinet, a photovoltaic inverter, a transformer and a photovoltaic transformer substation, wherein the output end of the photovoltaic array is converged and connected to the input end of the direct current power distribution cabinet, the output end of the direct current power distribution cabinet is connected with the direct current input end of the photovoltaic inverter, the alternating current output end of the photovoltaic inverter is connected with the input end of the transformer, and the output end of the transformer is connected with the photovoltaic transformer substation; the output end of the photovoltaic transformer substation is connected to a transformer substation of a steel mill through an overhead cable;
the wind power generation subsystem comprises a fan array, a generator-side transformer, a transformer and a wind field transformer substation, wherein the fan array is connected with the generator-side transformer, the generator-side transformer is connected with the transformer, the transformer is connected with the wind field transformer substation, and the wind field transformer substation is connected with a steel plant transformer substation through an overhead cable;
the electric energy output by the generator of the coal-fired power generation subsystem is output to a transformer substation of a steel mill after passing through a transformer;
and the input end of the steel plant transformer substation is also connected with the power supply input end of the national power grid, and the steel plant transformer substation supplies power for loads for the steel plant.
In the technical scheme, the steel mill comprehensive power supply system utilizing the new energy to generate power further comprises a self-built waste heat recovery power generation system, and a power transmission end of the waste heat recovery power generation system is also connected to a steel mill transformer substation through an overhead cable.
The utility model has the advantages and beneficial effects that:
the utility model utilizes wind energy, solar energy and a coal-fired boiler of the steel mill to generate electricity and combines a mains supply power grid to supply power, reduces the scale of a coal-fired self-contained power plant in the steel mill through a self-built new energy power plant, realizes the whole carbon emission reduction of the steel mill, reduces the environmental protection pressure of the steel mill, and has better environmental benefit, economic benefit and social benefit.
Drawings
Fig. 1 is a schematic diagram of a steel mill integrated power supply system for generating power by using new energy according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a steel mill integrated power supply system for generating power by using new energy according to a second embodiment of the present invention.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.
Example one
Referring to the attached drawing 1, the steel mill comprehensive power supply system for generating power by using new energy comprises a self-built photovoltaic power generation subsystem, a self-built wind power generation subsystem, a self-built coal-fired power generation subsystem, a national power grid power supply input end and a steel mill transformer substation.
The photovoltaic power generation subsystem comprises a photovoltaic array, a direct current power distribution cabinet, a photovoltaic inverter, a transformer and a photovoltaic transformer substation, wherein the output end of the photovoltaic array is converged and connected to the input end of the direct current power distribution cabinet, the output end of the direct current power distribution cabinet is connected with the direct current input end of the photovoltaic inverter, the alternating current output end of the photovoltaic inverter is connected with the input end of the transformer, the output end of the transformer is connected with the photovoltaic transformer substation, and the output end of the photovoltaic transformer substation is connected to the transformer substation of a steel mill through an overhead cable. The low-voltage direct current generated by the photovoltaic panels in the photovoltaic array is converged by the direct current power distribution cabinet, converted into low-voltage alternating current by the photovoltaic inverter and boosted by the transformer to enter the photovoltaic transformer substation, and the high-voltage electric energy of the photovoltaic transformer substation enters the steel mill transformer substation through the overhead cable and is reduced to 380V for industrial power supply for steel mill power loads.
The wind power generation subsystem comprises a fan array, a generator-side transformer, a transformer and a wind field transformer substation, wherein the fan array is connected with the generator-side transformer, the generator-side transformer is connected with the transformer, the transformer is connected with the wind field transformer substation, and the wind field transformer substation is connected with a steel plant transformer substation through an overhead cable. Wind turbines in the fan array generate electric energy under the action of wind power, the electric energy is boosted by a transformer at a generator end and then secondarily boosted by a transformer to enter a transformer substation of a wind power plant, and high-voltage electric energy in the transformer substation of the wind power plant enters a transformer substation of a steel mill through an overhead cable and is reduced to 380V for industrial power supply for a power load of the steel mill.
The coal-fired power generation subsystem comprises a coal-fired boiler, a steam turbine, a generator and a transformer, wherein the steam generated by the coal-fired boiler pushes the steam turbine, the steam turbine drives the generator to generate power, and electric energy output by the generator is output to a transformer substation of a steel mill after passing through the transformer.
And the input end of the steel plant transformer substation is also connected with the power supply input end of the national power grid, and the steel plant transformer substation supplies power for loads for the steel plant.
The transformer substation of the steel mill distributes electric energy, reduces voltage and the like, and supplies power to the steel mill so as to meet the normal use load of the steel mill.
Example two
On the basis of the first embodiment, referring to fig. 2, the integrated power supply system for a steel mill utilizing new energy to generate power further includes a self-built waste heat recovery power generation system, and a power transmission end of the waste heat recovery power generation system is also connected to a transformer substation of the steel mill through an overhead cable.
EXAMPLE III
In the embodiment, the load of a steel mill is 70 ten thousand kW, the average daily power consumption reaches 1380 ten thousand kWH, the wind power generation subsystem is provided with 30 fans with the rated power of 1.5MW, the rated wind speed is 11m/s, and the total installed quantity is 4.5 ten thousand kW. The photovoltaic power generation subsystem is provided with a photovoltaic panel with the specification of 1650 x 992mm, the rated power is 280W, and the laying area is 16.1 ten thousand m2The total installed amount is 4.5 ten thousand kW. The coal-fired power generation subsystem is provided with 6 coal-fired units, and the installed power generation capacity is 32 ten thousand kW. The wind power, photovoltaic and coal-fired power generation system can meet the use requirement of 41 ten thousand kW under load during normal operation, so that the power taking load from a power grid is 29 thousand kW. The comprehensive power supply system for the steel plant utilizes wind energy and solar energy to jointly generate power to control operation, reduces instability of a wind-light power plant when the wind-light power plant is used alone, and reduces impact load.
The utility model has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the utility model fall within the scope of the utility model.
Claims (1)
1. The utility model provides an utilize steel mill of new forms of energy electricity generation to synthesize power supply system which characterized in that: the system comprises a self-built photovoltaic power generation subsystem, a self-built wind power generation subsystem, a self-built coal-fired power generation subsystem, a national power grid power supply input end and a steel mill transformer substation;
the photovoltaic power generation subsystem comprises a photovoltaic array, a direct current power distribution cabinet, a photovoltaic inverter, a transformer and a photovoltaic transformer substation, wherein the output end of the photovoltaic array is converged and connected to the input end of the direct current power distribution cabinet, the output end of the direct current power distribution cabinet is connected with the direct current input end of the photovoltaic inverter, the alternating current output end of the photovoltaic inverter is connected with the input end of the transformer, and the output end of the transformer is connected with the photovoltaic transformer substation; the output end of the photovoltaic transformer substation is connected to a transformer substation of a steel mill through an overhead cable;
the wind power generation subsystem comprises a fan array, a generator-side transformer, a transformer and a wind field transformer substation, wherein the fan array is connected with the generator-side transformer, the generator-side transformer is connected with the transformer, the transformer is connected with the wind field transformer substation, and the wind field transformer substation is connected with a steel plant transformer substation through an overhead cable;
the electric energy output by the generator of the coal-fired power generation subsystem is output to a transformer substation of a steel mill after passing through a transformer;
the input end of the steel plant transformer substation is also connected with the power supply input end of the national power grid, and the steel plant transformer substation supplies power for loads of the steel plant;
the steel mill comprehensive power supply system utilizing the new energy to generate power further comprises a self-built waste heat recovery power generation system, and a power transmission end of the waste heat recovery power generation system is also connected to a steel mill transformer substation through an overhead cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120551760.7U CN215733507U (en) | 2021-03-17 | 2021-03-17 | Steel mill comprehensive power supply system utilizing new energy to generate power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120551760.7U CN215733507U (en) | 2021-03-17 | 2021-03-17 | Steel mill comprehensive power supply system utilizing new energy to generate power |
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| Publication Number | Publication Date |
|---|---|
| CN215733507U true CN215733507U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120551760.7U Expired - Fee Related CN215733507U (en) | 2021-03-17 | 2021-03-17 | Steel mill comprehensive power supply system utilizing new energy to generate power |
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| Country | Link |
|---|---|
| CN (1) | CN215733507U (en) |
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2021
- 2021-03-17 CN CN202120551760.7U patent/CN215733507U/en not_active Expired - Fee Related
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Granted publication date: 20220201 |