CN219010342U - Hydrogen cascade utilization system - Google Patents
Hydrogen cascade utilization system Download PDFInfo
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- CN219010342U CN219010342U CN202221153876.6U CN202221153876U CN219010342U CN 219010342 U CN219010342 U CN 219010342U CN 202221153876 U CN202221153876 U CN 202221153876U CN 219010342 U CN219010342 U CN 219010342U
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- cascade utilization
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 141
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 141
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 239000007789 gas Substances 0.000 claims abstract description 67
- 238000010248 power generation Methods 0.000 claims abstract description 42
- 239000003792 electrolyte Substances 0.000 claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
- 238000011084 recovery Methods 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 150000002484 inorganic compounds Chemical class 0.000 abstract description 2
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 2
- 239000000571 coke Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 239000008235 industrial water Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- -1 electric energy Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The application relates to the technical field of electrolytic production of inorganic compounds, in particular to a hydrogen cascade utilization system, which comprises a bell-type furnace, a blast furnace and a clean energy power generation device for preparing clean electric energy; the electrolyte hydrogen production device receives clean electric energy to produce first hydrogen; the air network conveying device receives and conveys the first hydrogen to the bell-type furnace for use; the tail gas recovery device purifies the tail gas output by the bell-type furnace to obtain second hydrogen; the tail gas recovery device inputs the second hydrogen into the blast furnace. The method reduces energy loss and environmental pollution caused by preparing and discharging hydrogen, and improves economic benefits of enterprises.
Description
Technical Field
The application relates to the technical field of electrolytic production of inorganic compounds, in particular to a hydrogen cascade utilization system.
Background
The steel production adopts hydrogen as the reducing protective gas of the blast furnace in the cold rolling process, and generally, steel enterprises prepare hydrogen by coke oven gas Pressure Swing Adsorption (PSA), and the hydrogen preparation mode needs to consume coke oven gas, electric energy, industrial water and other secondary energy sources simultaneously, which is not beneficial to low-carbon emission. And (3) after the production is finished, directly discharging the tail gas of the blast furnace to the air. The monthly hydrogen consumption of large steel enterprises is about 30 ten thousand Nm 3 The hydrogen content in the tail gas of the blast furnace is about 90 percent, which causes energy waste.
Disclosure of Invention
In order to reduce energy loss and environmental pollution caused by preparing and discharging hydrogen, the application provides a hydrogen cascade utilization system, which comprises a bell-type furnace and a blast furnace, and also comprises
The clean energy power generation device generates power through clean energy to prepare clean electric energy;
the input end of the electrolyte hydrogen production device is connected with the output end of the clean energy power generation device, and the clean electric energy is received to prepare first hydrogen;
the first input end of the air net conveying device is connected with the first output end of the electrolyte hydrogen production device, and the output end of the air net conveying device is connected with the input end of the bell-type furnace, and the air net conveying device receives and conveys the first hydrogen for the bell-type furnace to use;
the first input end of the tail gas recovery device is connected with the output end of the blast furnace, and the tail gas recovery device purifies the tail gas output by the bell-type furnace to obtain second hydrogen;
the first output end of the tail gas recovery device is connected with the input end of the blast furnace, and the second hydrogen is input into the blast furnace.
Further, the clean energy power generation device comprises a solar power generation device and/or a hydrogen energy power generation device.
Further, the input end of the hydrogen energy power generation device is connected with the second output end of the tail gas recovery device, and the second hydrogen is received to prepare hydrogen energy.
Further, a hydrogen storage tank is connected between the input end of the hydrogen energy power generation device and the second output end of the tail gas recovery device, and the hydrogen storage tank stores the second hydrogen and provides the second hydrogen for the hydrogen energy power generation device.
Further, a gas sensor is arranged in the hydrogen storage tank, and the gas sensor monitors the gas content in the hydrogen storage tank.
Further, a safety monitoring module is arranged in the clean energy power generation device, the safety monitoring module monitors the operation parameters of the clean energy power generation device, and when the detected operation parameters are different from a set parameter threshold value, an alarm is sent out.
Further, the electrolyte hydrogen production device comprises an input power supply and an electrolytic cell, wherein the input power supply is connected with the electrolytic cell to electrolyze the electrolyte in the electrolytic cell.
Further, the electrolyte includes sodium hydroxide or seawater.
Further, the electrolyte hydrogen production device prepares oxygen, the second input end of the gas net conveying device is connected with the second output end of the electrolyte hydrogen production device, and the oxygen is received for the hydrogen cascade utilization system.
Further, the air network conveying device further comprises a pressurizing module, and the pressurizing module pressurizes and conveys the hydrogen and the oxygen in the air network conveying device.
The beneficial effects are that:
the clean energy is used for replacing secondary energy sources such as coke oven gas, electric energy, industrial water and the like as energy sources for preparing hydrogen, so that energy waste and environmental pollution caused by using the coke oven gas, the electric energy, the industrial water and the like are eliminated; the first hydrogen is prepared by the electrolyte hydrogen production device, the electrolyte after electrolysis can be recycled, and the production cost is saved; the first hydrogen is received and transmitted by the gas net transmission device for use in the blast furnace, the tail gas output by the blast furnace is purified by the tail gas recovery device, the second hydrogen is obtained, the second hydrogen is used for replacing part of coke and injection coal in the blast furnace, the energy is saved, the pollution to the environment is avoided, and the economic benefit of enterprises is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a hydrogen cascade utilization system according to embodiment 1 of the present application;
FIG. 2 is a schematic diagram of a hydrogen cascade utilization system according to embodiment 2 of the present application;
FIG. 3 is a schematic diagram of a hydrogen cascade utilization system according to embodiment 3 of the disclosure;
FIG. 4 is a schematic diagram of a hydrogen cascade utilization system according to embodiment 4 of the disclosure;
fig. 5 is a schematic structural diagram of a hydrogen cascade utilization system according to embodiment 5 of the present application.
Reference numerals: the system comprises a clean energy power generation device-100, a safety monitoring module-101, a solar power generation device-110, an output end-111 of the solar power generation device, a hydrogen power generation device-120, an input end-121 of the hydrogen power generation device, a hydrogen storage tank-122, a gas sensor-123, an electrolyte hydrogen production device-200, an input power supply-210, an electrolytic cell-220, an input end-211 of the input power supply, an output end-212 of the input power supply, a first output end-201 of the electrolyte hydrogen production device, a second output end-202 of the electrolyte hydrogen production device, a gas network transmission device-300, a first input end-301 of the gas network transmission device, a second input end-302 of the gas network transmission device, an output end-303 of the gas network transmission device, a tail gas recovery device-400, a first input end-401 of the tail gas recovery device, a first output end-402 of the tail gas recovery device, a second input end-403 of the tail gas recovery device, a second output end-404 of the tail gas recovery device, a hood type furnace-500, an input end-501 of the hood type furnace, an output end-600 of the hood type furnace, and a high input end-601 of the hood type furnace.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Example 1
Referring to fig. 1, embodiment 1 provides a hydrogen cascade utilization system, comprising:
solar power generation device 110
The annual total solar radiation amount in Tangshan area is 5200MJ/m < 2 >, the solar energy source-rich II type area is provided with a solar power generation device 110 on a factory building roof in a factory, and the solar power generation device 110 consists of a solar battery pack, a solar controller and a storage battery pack. Solar energy is collected to carry out photovoltaic power generation, the solar energy is used for replacing coke oven gas, electric energy, industrial water and other secondary energy sources are used as energy sources for preparing hydrogen, and the energy loss and environmental pollution caused by the hydrogen prepared by the traditional mode are reduced.
Electrolyte hydrogen plant 200
The electrolyte hydrogen production device 200 comprises an input power supply 210 and an electrolytic cell 220, wherein an input end 211 of the input power supply is connected with an output end 111 of the solar power generation device and receives electric energy output by the solar power generation device 110; the output end 212 of the input power supply is connected with the electrolytic cell 220, and the electrolyte hydrogen production device 200 electrolyzes the electrolyte in the electrolytic cell 220 to prepare first hydrogen;
when water is electrolyzed, because the ionization degree of pure water is small, the electric conductivity is low, and the electrolyte is a typical weak electrolyte, so that the electrolyte is needed to be added to increase the electric conductivity of the solution, so that the water can be smoothly electrolyzed into hydrogen and oxygen, and the sodium hydroxide is adopted as the electrolyte in the embodiment 1;
direct current is introduced into the electrolytic cell 220 filled with the electrolyte, after the direct current is applied, water molecules undergo electrochemical reaction on electrodes, hydrogen is generated at the cathode of the electrolytic cell 220, oxygen is generated at the anode, and the hydrogen enters the hydrogen-water separator. After the hydrogen enters the hydrogen-water separator for dehumidification, regulating the rated pressure of a pressure stabilizing valve on the hydrogen-water separator to be 0.02-0.45 Mpa, and outputting the hydrogen by a first output end 201 of the electrolyte hydrogen production device;
the hydrogen production pressure of the electrolytic cell 220 is controlled to be about 0.45Mpa, and when the hydrogen production pressure reaches a set value, the input power supply 210 is cut off; when the hydrogen production pressure falls below the set point, the input power 210 resumes power.
Air net conveying device 300
In the rolling annealing of steel in the bell type furnace 500, in order to prevent oxidation of steel, it is necessary to charge a shielding gas into the bell type furnace 500, and hydrogen is generally used as the shielding gas in the bell type furnace 500 due to the reducibility of hydrogen; the first input 301 of the gas net transfer device 300 is connected to the first output 201 of the electrolyte hydrogen plant, the output 303 of the gas net transfer device is connected to the input 501 of the bell jar, and the gas net transfer device 300 receives the first hydrogen and transfers the first hydrogen to the bell jar 500.
Tail gas recovery device 400
The first input end 401 of the tail gas recovery device 400 is connected with the output end 502 of the bell-type furnace, the tail gas recovery device 400 receives the tail gas output by the bell-type furnace 500, and the second hydrogen is separated by pressurization and recovered;
the first output end 402 of the tail gas recovery device 400 is connected with the input end 601 of the blast furnace, namely, the tuyere of the blast furnace 600, and the second hydrogen is fed into the blast furnace 600 through the tuyere of the blast furnace 600, so that the second hydrogen is used for replacing part of coke and injection coal in the blast furnace 600 due to the fact that the hydrogen discharged from the bell-type furnace 500 has high temperature and has reducibility, and the carbon emission and energy consumption of the blast furnace 600 are reduced.
Embodiment 1 uses the idle space of the roof of the factory to install a solar power generation device 110, uses solar energy to replace secondary energy sources such as coke oven gas, electric energy, industrial water and the like as energy sources for preparing hydrogen, and eliminates energy waste and environmental pollution caused by using the secondary energy sources such as coke oven gas, electric energy, industrial water and the like; the first hydrogen is prepared by the electrolyte hydrogen production device 200, the electrolyte after electrolysis can be recycled, and the production cost is saved; the first hydrogen is received and transmitted by the gas network transmission device 300 for the bell type furnace 500 to use, and the tail gas output by the bell type furnace 500 is recovered and purified by the tail gas recovery device 400 to obtain second hydrogen; the second hydrogen is used for replacing part of coke and injection coal in the blast furnace 600, so that energy is saved and pollution to the environment is avoided.
Example 2
Referring to fig. 2, the difference from embodiment 1 is that when the sun is not enough, power generation is performed by the hydrogen energy power generation device 120 provided in the idle area of the plant. The input end 121 of the hydrogen energy generating device is connected with the second output end 404 of the tail gas recovery device, receives the second hydrogen, generates electricity through hydrogen energy, and supplies power for all production lines in the factory.
Example 3
Referring to fig. 3, the difference from embodiment 1 and embodiment 2 is that, in order to control the amount of the second hydrogen gas used, a hydrogen storage tank 122 is connected between an input end 121 of the hydrogen power generation device and a second output end 404 of the tail gas recovery device, and the hydrogen storage tank 122 stores the second hydrogen gas outputted from the tail gas recovery device 400 and provides the second hydrogen gas to the hydrogen power generation device 120 for preparing hydrogen energy. A gas sensor 123 is disposed in the hydrogen storage tank 122, and the gas sensor 123 monitors and displays the gas content in the hydrogen storage tank 122. When the gas sensor 123 detects that the hydrogen gas content in the hydrogen storage tank 122 is higher than the set threshold, the reception of the second hydrogen gas is stopped.
Example 3 power generation was performed with excess second hydrogen to provide green power to various production lines in the factory.
Example 4
Referring to fig. 4, the difference from embodiments 1 to 3 is that, in the clean energy power generation device 100 used in embodiment 4, a safety monitoring module 101 is disposed, and the safety monitoring module 101 monitors an operation parameter of the solar power generation device 110 and/or the hydrogen energy power generation device 120, and when the detected operation parameter is different from a set parameter threshold, an alarm is sent, so as to ensure the safety of the power generation process in the factory.
Example 5
Referring to fig. 5, the electrolyte hydrogen production device 200 can also obtain oxygen while preparing hydrogen, which is different from embodiments 1-4 in that, in embodiment 5, a second input end 302 of the gas net conveying device is connected with a second output end 202 of the electrolyte hydrogen production device, and oxygen is collected for the hydrogen cascade utilization system;
the pressurizing module is arranged in the air network conveying device 300, and the pressurizing module pressurizes and conveys the hydrogen and the oxygen entering the expected conveying device, so that the efficiency of supplying hydrogen and oxygen to the system is improved.
The foregoing is merely an embodiment of the present application, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the priority date, and a person of ordinary skill in the art can complete and implement the present application in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, which should also be considered as the scope of protection of the present application, without affecting the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (10)
1. A hydrogen cascade utilization system comprising a bell-type furnace and a blast furnace, characterized by further comprising:
the clean energy power generation device generates power through clean energy to prepare clean electric energy;
the input end of the electrolyte hydrogen production device is connected with the output end of the clean energy power generation device, and the clean electric energy is received to prepare first hydrogen;
the first input end of the air net conveying device is connected with the first output end of the electrolyte hydrogen production device, and the output end of the air net conveying device is connected with the input end of the bell-type furnace, and the air net conveying device receives and conveys the first hydrogen for the bell-type furnace to use;
the first input end of the tail gas recovery device is connected with the output end of the blast furnace, and the tail gas recovery device purifies the tail gas output by the bell-type furnace to obtain second hydrogen;
the first output end of the tail gas recovery device is connected with the input end of the blast furnace, and the second hydrogen is input into the blast furnace.
2. A hydrogen cascade utilization system as recited in claim 1, wherein: the clean energy power generation device comprises a solar power generation device and/or a hydrogen energy power generation device.
3. A hydrogen cascade utilization system as recited in claim 2, wherein: the input end of the hydrogen energy power generation device is connected with the second output end of the tail gas recovery device, and the second hydrogen is received to prepare hydrogen energy.
4. A hydrogen cascade utilization system as recited in claim 3, wherein: a hydrogen storage tank is connected between the input end of the hydrogen energy power generation device and the second output end of the tail gas recovery device, and the hydrogen storage tank stores the second hydrogen and provides the second hydrogen for the hydrogen energy power generation device.
5. A hydrogen cascade utilization system as recited in claim 4, wherein: the hydrogen storage tank is internally provided with a gas sensor, and the gas sensor monitors the gas content in the hydrogen storage tank.
6. A hydrogen cascade utilization system as recited in claim 1, wherein: the clean energy power generation device is internally provided with a safety monitoring module, the safety monitoring module monitors the operation parameters of the clean energy power generation device, and when the detected operation parameters are different from a set parameter threshold value, an alarm is sent out.
7. A hydrogen cascade utilization system as recited in claim 1, wherein: the electrolyte hydrogen production device comprises an input power supply and an electrolytic cell, wherein the input power supply is connected with the electrolytic cell to electrolyze electrolyte in the electrolytic cell.
8. A hydrogen cascade utilization system as recited in claim 7, wherein: the electrolyte comprises sodium hydroxide or seawater.
9. A hydrogen cascade utilization system as recited in claim 1, wherein: the electrolyte hydrogen production device prepares oxygen, the second input end of the gas net conveying device is connected with the second output end of the electrolyte hydrogen production device, and the oxygen is received for the hydrogen cascade utilization system.
10. A hydrogen cascade utilization system as recited in claim 9, wherein: the air network conveying device further comprises a pressurizing module, and the pressurizing module pressurizes and conveys the hydrogen and the oxygen in the air network conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221153876.6U CN219010342U (en) | 2022-05-13 | 2022-05-13 | Hydrogen cascade utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221153876.6U CN219010342U (en) | 2022-05-13 | 2022-05-13 | Hydrogen cascade utilization system |
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| CN219010342U true CN219010342U (en) | 2023-05-12 |
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